阅读说明：本技术 一种隔膜剥离装置用割膜结构 (Membrane cutting structure for membrane stripping device ) 是由 陈龙 于金华 姚卫 于 2021-08-28 设计创作，主要内容包括：本发明提供一种隔膜剥离装置用割膜结构,其可以在保持装置结构简单的基础上,快速准确的对隔膜顶部进行割膜操作,提高了剥离隔膜装置整体操作的成功率。其包括：割膜刀结构、物料通道、夹膜结构；物料通道包括互相垂直且连通的单侧割膜通道、双侧割膜通道,单侧割膜通道临近进料平台,双侧割膜通道远离进料平台；单侧割膜通道上临近夹膜结构的一侧安装割膜刀结构,双侧割膜通道的两侧分别对称安装一个割膜刀结构；双侧隔膜推送结构设置于双侧割膜通道的入口,推送方向垂直于单侧割膜通道；双侧割膜驱动结构,双侧割膜驱动结构固定连接双侧割膜通道的两侧的割膜刀结构。(The invention provides a membrane cutting structure for a membrane stripping device, which can quickly and accurately perform membrane cutting operation on the top of a membrane on the basis of simple structure of a maintaining device and improves the success rate of the overall operation of the membrane stripping device. It includes: a film cutting knife structure, a material channel and a film clamping structure; the material channel comprises a single-side film cutting channel and a double-side film cutting channel which are mutually vertical and communicated, the single-side film cutting channel is close to the feeding platform, and the double-side film cutting channel is far away from the feeding platform; a film cutting knife structure is arranged on one side of the single-side film cutting channel close to the film clamping structure, and two film cutting knife structures are symmetrically arranged on two sides of the double-side film cutting channel respectively; the double-side membrane pushing structure is arranged at the inlet of the double-side membrane cutting channel, and the pushing direction is vertical to the single-side membrane cutting channel; the double-side film cutting driving structure is fixedly connected with the film cutting knife structures on two sides of the double-side film cutting channel.)

1. A membrane cutting structure for a membrane peeling device, comprising: a film cutting knife structure, a material channel and a film clamping structure; the material channel comprises a single-side film cutting channel and a double-side film cutting channel which are perpendicular to each other and communicated with each other, the single-side film cutting channel is close to the feeding platform, and the double-side film cutting channel is far away from the feeding platform; the film cutting knife structure is arranged on one side, close to the film clamping structure, of the single-side film cutting channel, and the two sides of the double-side film cutting channel are symmetrically provided with one film cutting knife structure respectively; the film clamping structure is arranged above the double-side film cutting channel;

it is characterized in that it also comprises: the device comprises a bilateral diaphragm material pushing structure and a bilateral film cutting driving structure;

the double-side membrane pushing structure is arranged at the inlet of the double-side membrane cutting channel, the pushing direction is perpendicular to the single-side membrane cutting channel, and the pushing stroke is arranged between the inlet of the double-side membrane cutting channel and the membrane clamping structure;

the double-side film cutting driving structure is fixedly connected with the film cutting knife structures on two sides of the double-side film cutting channel, and the stroke of the double-side film cutting driving structure comprises the film clamping structure and the double-side film cutting channel between inlets of the double-side film cutting channel.

2. The film cutting structure for a separator peeling apparatus according to claim 1, wherein: the two-side film cutting driving structure is realized based on the linear modules for the two-side diaphragms, and the sliding tables of the linear modules for the two-side film cutting are fixedly connected with the film cutting knife structures on the two sides of the two-side film cutting channel.

3. The film cutting structure for a separator peeling apparatus according to claim 1, wherein: the film cutting knife structure comprises: the cutting edge is curved cuts the membrane sword, cut the wobbling horizontal installation of membrane sword through setting up the swing structure on the blade on the mounting panel, the mounting panel is fixed in and cuts on the membrane sword elevation structure, cut membrane sword elevation structure and fix on cutting membrane sword horizontal adjustment structure.

4. The film cutting structure for a separator peeling apparatus according to claim 3, wherein: the swing structure includes: the flat copper sleeve and the positioning spring are fixedly connected with the film cutting knife;

the copper bush is fixedly connected with one end of a positioning shaft, the other end of the positioning shaft is vertically inserted into an inner cavity of a positioning shaft seat, the positioning shaft and the positioning shaft seat are in clearance fit, the positioning shaft seat is fixed on the mounting plate, a vertically downward spring fixing column is arranged on the bottom end face of the copper bush positioned at the tail of the film cutting knife, and two ends of the horizontally arranged positioning spring are respectively and fixedly connected with the spring fixing column and the mounting plate.

5. The film cutting structure for a separator peeling apparatus according to claim 3, wherein: the film cutting knife is a hot melting knife, the film cutting knife is connected with a heating rod fixedly installed on the copper sleeve, and a temperature sensor is arranged on the bottom end face of the copper sleeve.

6. The film cutting structure for a separator peeling apparatus according to claim 3, wherein: cut membrane sword elevation structure includes: the film cutting knife lifting sliding block is vertically arranged on the film cutting knife bracket, the mounting plate is fixedly connected with a mounting plate connecting piece, and the mounting plate connecting piece is connected to the film cutting knife lifting sliding block through a sliding block sliding rail structure; and a through hole is formed in the mounting plate connecting piece and is perpendicular to the film cutting knife lifting sliding block, and a lifting jacking nut penetrates through the through hole and is tightly jacked on the film cutting knife lifting sliding block.

7. The film cutting structure for a separator peeling apparatus according to claim 3, wherein: the film cutting knife horizontal adjustment structure comprises a horizontally arranged slide block for horizontal adjustment of the film cutting knife, and the bottom end of the slide block for lifting the film cutting knife is connected to the slide block for horizontal adjustment of the film cutting knife through a slide block slide rail.

8. The film cutting structure for a separator peeling apparatus according to claim 1, wherein: the film sandwiching structure includes: the clamping jaw driving mechanism comprises a clamping jaw, a clamping jaw driving structure, a clamping jaw lifting structure and a hanging structure;

the clamping jaw is driven by the clamping jaw driving structure to complete opening and closing actions; the hanging structure is fixed on the clamping jaw lifting structure, the clamping jaw and the clamping jaw driving structure are installed on the hanging structure through a clamping jaw seat, and the hanging structure horizontally hangs the clamping jaw above the double-side film cutting channel.

9. The film cutting structure for a separator peeling apparatus as claimed in claim 8, wherein: the clamping jaw comprises: the lower clamping jaw comprises a clamping jaw end and a mounting end which are integrally formed;

the clamping jaw bearing comprises an integrally formed upper clamping jaw and a clamping jaw cavity with a downward opening and a U-shaped inner cavity, the mounting end of the lower clamping jaw is hinged and mounted in the clamping jaw cavity, and the clamping jaw end of the lower clamping jaw extends out of the clamping jaw cavity and is opposite to the bottom end face of the upper clamping jaw;

the bottom end surface of the upper clamping jaw and the top end surface of the clamping jaw end are mutually occluded in shape;

the lower clamping jaw is hinged with the side walls of the two sides of the clamping jaw cavity close to the upper clamping jaw through a positioning pin, and is hinged with the side walls of the two sides of one end of the clamping jaw cavity far away from the upper clamping jaw through a rotating pin;

the jaw drive structure includes: an output shaft of the clamping jaw air cylinder is hinged with the rotating pin and the mounting end of the lower clamping jaw through a rivet nut;

the clamping jaw air cylinder is fixed on the clamping jaw seat, and the upper end face of the clamping jaw bearing is fixedly connected with the bottom end face of the clamping jaw seat; and the clamping jaw seat is fixedly provided with a through guide rod hole.

10. The film cutting structure for a separator peeling apparatus as claimed in claim 8, wherein: the suspension structure includes: the guide rod, the transposition air cylinder and the position adjusting rod are horizontally and vertically arranged on the double-side film cutting channel, the guide rod is horizontally fixed on the clamping jaw lifting structure, and the guide rod penetrates through a guide rod hole in the clamping jaw seat to hang the clamping jaw seat above the material channel;

the position adjusting rod is parallel to the guide rod and is fixedly connected with each clamping jaw seat; the transposition cylinder is fixed on the clamping jaw lifting structure, and a piston rod of the transposition cylinder is connected with the clamping jaw seat closest to the transposition cylinder.

Technical Field

The invention relates to the technical field of diaphragm cutting equipment, in particular to a diaphragm cutting structure for a diaphragm stripping device.

Background

Many packaging bottles are packaged closed by a septum prior to filling with liquid or solid contents. As shown in fig. 1, a fixed number of bottle bodies 1 are completely packed inside a transparent or translucent membrane 2; the packaging diaphragm 2 comprises a top film 2-1, a bottom film 2-2 and a side film 2-3 which are connected together in a sealing way. Before the bottle body 1 is used on a production line, the packaging diaphragm 2 needs to be peeled off; in the prior art, the membrane cutting and stripping operation is performed based on a membrane stripping device shown in fig. 2, the membrane cutting operation is performed on three sides of a top membrane 2-1 of a membrane 2, and then the membrane 2 is separated from a bottle body; the specific process is as follows: the bottle body 1 packaged in the diaphragm 2 is placed on the feeding hole 3, the feeding pushing structure 9 pushes the bottle body to slide along the single-side film cutting material channel 5-1, the film cutting knife 6 is arranged on one side of the single-side film cutting channel 4, and in the sliding process, the side film 2-3 on one side of the diaphragm 2 is cut; the double-side film cutting channel 5-2 is vertical to and communicated with the single-side film cutting channel 5-1; a double-side film cutting pushing structure 12 is arranged at the terminal of the single-side film cutting channel 4 and the inlet of the double-side film cutting channel 5, and the double-side film cutting pushing structure 12 continues to push the bottle body 1 into the double-side film cutting channel 5; a film clamping structure 7 is arranged above the double-side film cutting channel 5, clamping jaws of the film clamping structure 7 descend to clamp the separated side films 2-3 and then ascend, the side films 2-3 are tensioned, a double-side film cutting pushing structure 12 continues to push the bottle body 1 forwards, and film cutting knives 6 arranged on two sides below the clamping jaws of the film clamping structure 7 continue to perform film cutting operation on two sides of the side films 2-3.

However, in the process of cutting the top film 2-1 of the diaphragm 2 based on the existing diaphragm peeling device, after the clamping jaws of the film clamping structure 7 clamp tightly, the double-side film cutting and pushing structure 12 pushes the bottle body 1 to advance, sometimes the clamping jaws tear the diaphragm, the clamping jaws fail to clamp, and subsequent film cutting operation fails; a technician adjusts the position of the film cutting knife 6 on the double-side film cutting channel 5-2, and performs film cutting operation before the clamping jaw clamps the diaphragm, but the position of the knife edge on the diaphragm 2 is changed due to looseness of the side film 2-3 cut on the single-side film cutting channel 4, the knife edge of the film cutting knife 6 on the double-side film cutting channel 5 is inconsistent with the knife edge of the film cutting knife 6 on the single-side film cutting channel 4, three side surfaces of the top film 2-1 are not completely cut, and further the subsequent separation operation of the film removing structure 8 on the bottle body 1 and the diaphragm 2 fails. On the basis of the existing structure, the clamping structure of the clamping jaw and the knife edge structure of the film cutting knife 6 are adjusted to cause the structures of the clamping jaw and the film cutting knife to be more and more complex, and meanwhile, the problem of film cutting failure cannot be thoroughly solved.

Disclosure of Invention

In order to solve the problem that the top diaphragm is not completely cut or the diaphragm cutting fails in the operation of the existing diaphragm cutting structure, the invention provides the diaphragm cutting structure for the diaphragm peeling device, which can quickly and accurately cut the top of the diaphragm on the basis of keeping the structure of the device simple, and improves the success rate of the overall operation of the diaphragm peeling device.

The technical scheme of the invention is as follows: a membrane cutting structure for a membrane peeling device, comprising: a film cutting knife structure, a material channel and a film clamping structure; the material channel comprises a single-side film cutting channel and a double-side film cutting channel which are perpendicular to each other and communicated with each other, the single-side film cutting channel is close to the feeding platform, and the double-side film cutting channel is far away from the feeding platform; the film cutting knife structure is arranged on one side, close to the film clamping structure, of the single-side film cutting channel, and the two sides of the double-side film cutting channel are symmetrically provided with one film cutting knife structure respectively; the film clamping structure is arranged above the double-side film cutting channel;

it is characterized in that it also comprises: the device comprises a bilateral diaphragm material pushing structure and a bilateral film cutting driving structure;

the double-side membrane pushing structure is arranged at the inlet of the double-side membrane cutting channel, the pushing direction is perpendicular to the single-side membrane cutting channel, and the pushing stroke is arranged between the inlet of the double-side membrane cutting channel and the membrane clamping structure;

the double-side film cutting driving structure is fixedly connected with the film cutting knife structures on two sides of the double-side film cutting channel, and the stroke of the double-side film cutting driving structure comprises the film clamping structure and the double-side film cutting channel between inlets of the double-side film cutting channel.

It is further characterized in that:

the double-side film cutting driving structure is realized by a linear module based on double-side diaphragms, and a sliding table of the linear module for double-side film cutting is fixedly connected with the film cutting knife structures on two sides of the double-side film cutting channel;

the film cutting knife structure comprises: the film cutting knife is characterized in that a cutting edge is an arc-shaped film cutting knife, the film cutting knife is horizontally arranged on a mounting plate in a swinging mode through a swinging structure arranged on a knife body, the mounting plate is fixed on a film cutting knife lifting structure, and the film cutting knife lifting structure is fixed on a film cutting knife horizontal adjusting structure;

the swing structure includes: the flat copper sleeve and the positioning spring are fixedly connected with the film cutting knife;

the copper sleeve is fixedly connected with one end of a positioning shaft, the other end of the positioning shaft is vertically inserted into an inner cavity of a positioning shaft seat, the positioning shaft and the positioning shaft seat are in clearance fit, the positioning shaft seat is fixed on the mounting plate, a vertically downward spring fixing column is arranged on the bottom end face of the copper sleeve positioned at the tail part of the film cutting knife, and two ends of the horizontally arranged positioning spring are respectively and fixedly connected with the spring fixing column and the mounting plate;

the film cutting knife is a hot melting knife, the film cutting knife is connected with a heating rod fixedly installed on the copper sleeve, and a temperature sensor is arranged on the bottom end face of the copper sleeve;

cut membrane sword elevation structure includes: the film cutting knife lifting sliding block is vertically arranged on the film cutting knife bracket, the mounting plate is fixedly connected with a mounting plate connecting piece, and the mounting plate connecting piece is connected to the film cutting knife lifting sliding block through a sliding block sliding rail structure; a through hole is formed in the mounting plate connecting piece and is perpendicular to the film cutting knife lifting sliding block, and a lifting jacking nut penetrates through the through hole and is tightly jacked on the film cutting knife lifting sliding block;

the film cutting knife horizontal adjusting structure comprises a horizontally arranged film cutting knife horizontal adjusting slide block, and the bottom end of the film cutting knife lifting slide block is connected to the film cutting knife horizontal adjusting slide block through a slide block slide rail;

the film sandwiching structure includes: the clamping jaw driving mechanism comprises a clamping jaw, a clamping jaw driving structure, a clamping jaw lifting structure and a hanging structure;

the clamping jaw is driven by the clamping jaw driving structure to complete opening and closing actions; the hanging structure is fixed on the clamping jaw lifting structure, the clamping jaw and the clamping jaw driving structure are installed on the hanging structure through a clamping jaw seat, and the hanging structure horizontally hangs the clamping jaw above the double-side film cutting channel;

the clamping jaw comprises: the lower clamping jaw comprises a clamping jaw end and a mounting end which are integrally formed;

the clamping jaw bearing comprises an integrally formed upper clamping jaw and a clamping jaw cavity with a downward opening and a U-shaped inner cavity, the mounting end of the lower clamping jaw is hinged and mounted in the clamping jaw cavity, and the clamping jaw end of the lower clamping jaw extends out of the clamping jaw cavity and is opposite to the bottom end face of the upper clamping jaw;

the bottom end surface of the upper clamping jaw and the top end surface of the clamping jaw end are mutually occluded in shape;

the lower clamping jaw is hinged with the side walls of the two sides of the clamping jaw cavity close to the upper clamping jaw through a positioning pin, and is hinged with the side walls of the two sides of one end of the clamping jaw cavity far away from the upper clamping jaw through a rotating pin;

the jaw drive structure includes: an output shaft of the clamping jaw air cylinder is hinged with the rotating pin and the mounting end of the lower clamping jaw through a rivet nut;

the clamping jaw air cylinder is fixed on the clamping jaw seat, and the upper end face of the clamping jaw bearing is fixedly connected with the bottom end face of the clamping jaw seat; the clamping jaw seat is fixedly provided with a through guide rod hole;

the suspension structure includes: the guide rod, the transposition air cylinder and the position adjusting rod are horizontally and vertically arranged on the double-side film cutting channel, the guide rod is horizontally fixed on the clamping jaw lifting structure, and the guide rod penetrates through a guide rod hole in the clamping jaw seat to hang the clamping jaw seat above the material channel;

the position adjusting rod is parallel to the guide rod and is fixedly connected with each clamping jaw seat; the transposition cylinder is fixed on the clamping jaw lifting structure, and a piston rod of the transposition cylinder is connected with the clamping jaw seat closest to the transposition cylinder.

According to the membrane cutting structure for the membrane peeling device, after the packaging membrane with the membrane cut at one side is sent to the inlet of the membrane cutting channel at two sides, the material pushing structure of the membrane at two sides pushes the material to the lower part of the membrane clamping structure of the membrane cutting channel at two sides in the direction vertical to the surface where the side membrane is cut; the membrane clamping structure clamps the opening side of the membrane and then rises, the double-side membrane cutting driving structure drives the membrane cutting knife structures on two sides of the double-side membrane cutting channel to move to the inlet side of the double-side membrane cutting channel, and the side surfaces of the membrane are cut from two sides; based on the technical scheme of the invention, after the membrane clamping structure clamps and tensions the membrane cut on the single-side membrane cutting channel, the membrane cutting knife structures on two sides of the double-side membrane cutting channel start to work, so that the consistency of the knife edges of two membrane cutting is ensured, and the problem that the top membrane is not completely cut due to the inconsistency of the knife edges is avoided; meanwhile, after the membrane is clamped by the membrane clamping structure, the membrane cannot be pulled by overlarge force, so that the problems that the membrane is torn by the clamping jaw and the clamping of the clamping jaw fails are avoided; based on the technical scheme of the invention, the film cutting operation on the top of the diaphragm can be accurately finished without complicating the film clamping structure and the diaphragm cutter structure.

Drawings

FIG. 1 is a schematic structural view of a bottle body to be cut into a film and a diaphragm;

FIG. 2 is a schematic view of a separator peeling apparatus in a prior art configuration;

FIG. 3 is an overall schematic view of a separator peeling apparatus according to the present invention;

FIG. 4 is a schematic three-dimensional structure of a film cutting knife according to the present invention;

FIG. 5 is a three-dimensional front view structural diagram of the structure of the film cutting knife;

FIG. 6 is a schematic perspective view of the film-sandwiching structure;

FIG. 7 is a schematic structural view of a front view of a film-sandwiching structure;

FIG. 8 is an enlarged, cross-sectional view taken along line A-A of FIG. 7 showing the jaw and jaw receptacle;

fig. 9 is a cross-sectional structural view of the jaw.

Detailed Description

As shown in fig. 3, the present invention provides a membrane cutting structure for a membrane peeling apparatus, including: a film cutting knife structure 6, a material channel 5 and a film clamping structure 7; the material channel 5 comprises a single-side film cutting channel 5-1 and a double-side film cutting channel 5-2 which are mutually vertical and communicated, the single-side film cutting channel 5-1 is close to the feeding platform 3, the double-side film cutting channel 5-2 is far away from the feeding platform 3 and is communicated with the demoulding structure 8 and the discharging platform 4; a film cutting knife structure 6 is arranged on one side of the single-side film cutting channel 5-1 close to the film clamping structure 7, and two sides of the double-side film cutting channel 5-2 are respectively and symmetrically provided with one film cutting knife structure 6; the film clamping structure 7 is arranged above the double-side film cutting channel 5-2.

The material is placed on feeding platform 3 after by the material loading, and location structure includes: a positioning plate 10 arranged in parallel to the length direction of the single-side film cutting channel 5-1; the positioning plate 10 is arranged on the opposite side of the film cutting knife structure 6 on the single-side film cutting channel 5-1; the positioning plate 10 is positioned and driven by the air cylinder 10-1, and materials placed on the feeding platform 3 are pushed to one side provided with the film cutting knife structure 6, so that the diaphragms 2 on the materials are positioned in the diaphragm range of the film cutting knife structure 6.

The unilateral membrane cutting channel 5-1 communicates feeding platform 3, and pan feeding propelling movement structure includes push plate 9, pushes away material drive structure (mark in the figure), pushes away material drive structure and includes: the automatic film cutting machine comprises a material pushing motor, a screw rod and a screw rod pair, wherein the screw rod of a material feeding pushing structure is arranged in parallel to the length direction of a single-side film cutting channel 5-1, a pushing plate 9 is arranged in perpendicular to the length direction of the single-side film cutting channel 5-1, a material pushing through groove 11 is arranged in parallel to the length direction of the single-side film cutting channel 5-1, the lower surface of the pushing plate 9 penetrates through the material pushing through groove 11 through a connecting piece and is connected with the screw rod and the screw rod pair arranged at the bottom of the single-side film cutting channel 5-1, the pushing motor drives the pushing plate 9 to push materials to horizontally move along the single-side film cutting channel 5-1, and the film cutting knife structure 6 on one side of the single-side film cutting channel 5-1 performs hot melting diaphragm operation on one side of a diaphragm 2 in the advancing process.

The double-side membrane pushing structure 12 is arranged at the inlet of the double-side membrane cutting channel 5-2, the pushing direction is vertical to the single-side membrane cutting channel 5-1, and the pushing stroke is arranged between the inlet of the double-side membrane cutting channel 5-2 and the membrane clamping structure 7. In specific implementation, the bilateral diaphragm pushing structure 12 can be implemented based on a device capable of implementing linear driving in the prior art, such as a module based on a synchronous belt type, a ball screw type or a linear motor type, or an air cylinder; the embodiment is realized on the basis of a material pushing cylinder 12-1, wherein an output rod of the material pushing cylinder 12-1 is connected with a double-side film cutting material pushing plate 12-2; after the material pushing cylinder 12-1 is started, the double-side film cutting material pushing plate 12-2 pushes the material placed in front to do linear motion along the double-side film cutting channel 5-2, and a cut edge of the cut diaphragm 2 is sent between the prepared upper clamping jaw and the prepared lower clamping jaw of the film clamping structure 7.

The double-side film cutting driving structure 14 is fixedly connected with the film cutting knife structures 6 on two sides of the double-side film cutting channel 5-2, and the stroke of the double-side film cutting driving structure 14 comprises the double-side film cutting channel 5-2 between the film clamping structure 7 and the inlet of the double-side film cutting channel 5-2. In the embodiment, the double-side film cutting driving structure 14 is realized by a linear module based on double-side diaphragms, and a sliding table of the linear module for double-side film cutting is fixedly connected with the film cutting knife structures 6 on two sides of the double-side film cutting channel 5-2 to drive the film cutting knife structures 6 on two sides to do linear motion along the double-side film cutting channel 5-2; the default positions of the two film cutting knife structures 6 driven by the double-side film cutting driving structure 14 are arranged at one end of the material close to the film stripping structure 8 in the advancing direction of the material in the double-side film cutting channel 5-2.

After the technical scheme of the invention is used, the single-side film cutting knife structure 6 and the double-side film cutting knife structure 6 are respectively arranged on the single-side film cutting channel 5-1 and the double-side film cutting channel 5-2 which are mutually vertical and communicated, so that three adjacent and mutually vertical side surfaces of the diaphragm 2 on the material can be ensured to be contacted with the hot melting knife; firstly, cutting one side face of a diaphragm 2 in a unilateral diaphragm cutting channel 5-1, then pushing materials by a bilateral diaphragm pushing structure 12, taking the direction of the cut side face as the advancing direction, entering the bilateral diaphragm cutting channel 5-2, descending through a diaphragm clamping structure 7, clamping the edge of the separated side diaphragm 2-3, then lifting the diaphragm clamping structure 7, tensioning the edge of the cut side diaphragm 2-3, driving two diaphragm cutting knife structures 6 to act in the opposite direction of the advancing direction of the materials by the bilateral diaphragm pushing structure 12, and cutting the side wall of the diaphragm 2 on the two adjacent side faces of the separated side diaphragm 2-3 by the two diaphragm cutting knife structures 6; because the knife edge cut by the single-side film cutting knife structure 6 is already pulled open, after the height and the horizontal position of the double-side film cutting knife structure 6-1 are adjusted, the knife edge of the double-side film cutting knife structure 6 can be ensured to be consistent with the knife edge of the single-side film cutting knife structure 6, so that the three side walls of the top film 2-1 of the diaphragm 2 are completely cut, and the success rate of the subsequent film stripping operation on the film stripping structure 8 is ensured.

As shown in fig. 4 and 5, the film cutting knife structure 6 includes: one end of the film cutting knife 6-1 is provided with an arc-shaped cutting edge 6-15, the other end of the film cutting knife 6-1 is horizontally arranged on a mounting plate 6-5 in a swinging mode through a swinging structure, the mounting plate 6-5 is fixed on a film cutting knife lifting structure, and the film cutting knife lifting structure is fixed on a film cutting knife horizontal adjusting structure; the length of the film cutting knife 6-1 and the radian of the cutting edge 6-15 are adjusted according to the size of the bottle body 1, so that the film cutting knife structure 6 can be suitable for materials with different sizes, and the practicability of the invention is further ensured.

The swing structure includes: a flat copper sleeve 6-2 and a positioning spring 6-3 which are fixedly connected with the film cutting knife 6-1; the copper sleeve 6-2 is fixedly connected with one end of the positioning shaft 6-7, the other end of the positioning shaft 6-7 is vertically inserted into the inner cavity of the positioning shaft seat 6-8, the positioning shaft 6-7 and the positioning shaft seat 6-8 are in clearance fit, and the top of the positioning shaft 6-7 is provided with a cover plate 6-11 for sealing to prevent impurities from entering the inner cavity of the positioning shaft seat 6-8.

The positioning shaft seat 6-8 is fixed on the mounting plate 6-5, a vertically downward spring fixing column 6-4 is arranged on the bottom end face of the copper sleeve 6-2 at the tail end of the film cutting knife 6-1, and two ends of a horizontally arranged positioning spring 6-3 are respectively and fixedly connected with the spring fixing column 6-4 and the mounting plate 6-5; the film cutting knife 6-1 is a hot melting knife, the film cutting knife 6-1 is connected with a heating rod 6-6 fixedly arranged on the copper sleeve 6-2, and a temperature sensor 6-10 is arranged on the bottom end face of the copper sleeve 6-2; the temperature of the hot melting knife is monitored in real time through the temperature sensor 6-10, and the film cutting knife 6-1 can reach the preset temperature. Meanwhile, the heating rod 6-6 and the temperature sensor 6-10 can ensure that the film cutting knife 6-1 can be adjusted to different temperatures according to the diaphragms 2 made of different materials, and further ensure that the technical scheme of the invention is suitable for different production scenes.

The heating rod 6-6 heats the film cutting knife 6-1 to a preset temperature, when materials move, the membrane 2 is in contact with the cutting edge 6-15 and then is cut by hot melting, after the membrane 2 is cut by the film cutting knife 6-1 and meets the blocking force of the bottle body 1, the positioning shaft 6-7 rotates in the inner cavity of the positioning shaft seat 6-8 to drive the film cutting knife 6-1 to rotate, and the film cutting knife 6-1 is ensured not to damage the bottle body 1; after the film cutting knife 6-1 scratches the bottle body, the positioning spring 6-3 pulls the spring fixing column 6-4 arranged at the tail end of the film cutting knife 6-1 to pull the film cutting knife 6-1 back to the original position, and the diaphragm 2 at the next bottle body 1 is subjected to hot melting cutting; the oscillating structure ensures that the film cutting knife 6-1 can continuously sweep across the entire row of bottles 1 in the membrane 2 without damaging the bottles 1. The arc-shaped cutting edge of the film cutting knife 6-1 can ensure that a knife edge appears on the diaphragm on the front side surface in the advancing direction of the material when the film cutting knife 6-1 thermally melts the diaphragm 2 for the first time, and a knife edge also appears on the side film at the tail part of the material after the side wall of the diaphragm where the film cutting knife 6-1 is located is cut; further ensuring that the knife edge generated by the film cutting knife 6-1 arranged on the single-side film cutting channel 5-1 is consistent with the knife edge generated by the film cutting knife 6-1 arranged on the two sides of the subsequent double-side film cutting channel 5-2.

Cut membrane sword elevation structure includes: the film cutting knife lifting sliding block 6-12 is vertically arranged on the film cutting knife bracket 6-14, the mounting plate 6-5 is fixedly connected with the mounting plate connecting piece 6-9, and the mounting plate connecting piece 6-9 is connected to the film cutting knife lifting sliding block 6-12 through a sliding block sliding rail structure; a through hole with an internal screw is arranged on the mounting plate connecting piece 6-9 and is vertical to the film cutter lifting slide block 6-12, and a lifting jacking nut 6-16 with an adjusting handle penetrates through the through hole and is propped against the film cutter lifting slide block 6-12; when the vertical position of the film cutting knife 6-1 needs to be adjusted, the lifting jacking nut 6-16 is rotated to loosen the jacking force of the sliding block 6-12 for lifting the film cutting knife, the lifting jacking nut 6-16 is screwed down after the film cutting knife 6-1 is adjusted to the high-low position along with the mounting plate 6-5, and the position of the film cutting knife 6-1 is fixed.

The film cutting knife horizontal adjusting structure comprises horizontally arranged film cutting knife horizontal adjusting sliding blocks 6-13, and the bottom ends of film cutting knife supports 6-14 are connected to the film cutting knife horizontal adjusting sliding blocks 6-13 through sliding block sliding rails; a through hole with an internal screw is arranged on the film cutting knife bracket 6-14 and is vertical to the slide block 6-13 for horizontal adjustment of the film cutting knife, and a horizontal jacking nut 6-17 with an adjusting handle is tightly propped against the slide block 6-13 for horizontal adjustment of the film cutting knife through the through hole. When the horizontal position of the film cutting knife 6-1 needs to be adjusted, the horizontal jacking nut 6-17 is rotated to loosen the jacking force of the sliding block 6-13 for adjusting the horizontal position of the film cutting knife, the horizontal jacking nut 6-17 is screwed after the film cutting knife 6-1 adjusts the horizontal position along with the lifting structure of the film cutting knife, and the horizontal position of the film cutting knife 6-1 is fixed.

The film cutting knife lifting structure and the film cutting knife horizontal adjusting structure adjust the horizontal and vertical positions of the film cutting knife 6-1, so that the three film cutting knives 6-1 can be arranged at the same horizontal height, the knife edges of the two diaphragms are ensured to be consistent, and the technical scheme of the invention is also ensured to be suitable for materials with different sizes.

As shown in fig. 6 and 7, the film sandwiching structure 7 includes: the clamping jaw lifting mechanism comprises a clamping jaw 7-1, a clamping jaw driving structure 7-9, a clamping jaw lifting structure 7-5 and a hanging structure 7-3; the clamping jaw 7-1 is driven by the clamping jaw driving structure 7-9 to complete the opening and closing action; the hanging structure 7-3 is fixed on the clamping jaw lifting structure 7-5, the clamping jaw 7-1 and the clamping jaw driving structure 7-9 are installed on the hanging structure 7-3 through the clamping jaw seat 7-2, and the hanging structure 7-3 horizontally hangs the clamping jaw above the double-side film cutting channel 5-2.

As shown in fig. 8 and 9, the jaw 7-1 includes: the lower clamping jaw 7-1-1 and the clamping jaw bearing 7-1-2 are arranged, and the lower clamping jaw 7-1-1 comprises a clamping jaw end 7-1-101 and a mounting end 7-1-102 which are integrally formed; the clamping jaw bearing 7-1-2 comprises an integrally formed upper clamping jaw 7-1-201 and a clamping jaw cavity 7-1-202 with a downward opening inner cavity in a U shape, the mounting end 7-1-102 of the lower clamping jaw 7-1-1 is hinged and mounted in the clamping jaw cavity 7-1-202, and the clamping jaw end 7-1-101 of the lower clamping jaw 7-1-1 extends out of the clamping jaw cavity 7-1-202 and is opposite to the bottom end surface of the upper clamping jaw 7-1-201; the lower clamping jaw 7-1-1 is hinged with the side walls of the clamping jaw cavity 7-1-202 close to the two sides of the upper clamping jaw 7-1-201 through a positioning pin 7-1-3, and is hinged with the side walls of the two sides of the clamping jaw cavity 7-1-202 far away from one end of the upper clamping jaw 7-1-201 through a rotating pin 7-1-4; the jaw drive structure 7-9 includes: an output shaft of the clamping jaw cylinder is hinged with the rotating pin 7-1-4 and the mounting end 7-1-102 of the lower clamping jaw 7-1-1 through a rivet nut;

when the clamping jaw 7-1 is required to clamp the membrane 2, firstly, a clamping jaw air cylinder in a clamping jaw driving structure 7-9 is started, an output shaft of the clamping jaw air cylinder pulls the mounting end 7-1-102 of the lower clamping jaw 7-1-1 upwards, the mounting end 7-1-102 of the lower clamping jaw 7-1-1 rotates upwards based on a hinge point, and the clamping jaw end 7-1-101 of the lower clamping jaw 7-1-1 rotates downwards to realize the separation of the clamping jaw end 7-1-101 from the upper clamping jaw 7-1-201. When the material and the clamping jaw 7-1 continue to generate relative displacement, the mounting end 7-1-102 of the lower clamping jaw 7-1-1 extends into a separated knife edge of the diaphragm 2, the clamping jaw cylinder moves reversely, the output shaft of the clamping jaw cylinder downwards ejects out of the mounting end 7-1-102 of the lower clamping jaw 7-1-1, the clamping jaw end 7-1-101 of the lower clamping jaw 7-1-1 rotates upwards, the clamping jaw end 7-1-101 is folded with the upper clamping jaw 7-1-201, and the diaphragm 2 located in a device is clamped.

The bottom end surface of the upper clamping jaw 7-1-201 and the top end surface of the clamping jaw end 7-1-101 are mutually meshed in shape; in this embodiment, the bottom end surfaces of the clamping jaws 7-1-201 and the top end surfaces of the clamping jaw ends 7-1-101 are respectively provided with tooth-shaped structures with mutually meshed shapes, so that the diaphragm 2 clamped therein can be locked, the possibility of falling off of the diaphragm in the process of tensioning the diaphragm 2 is reduced, and the possibility that the double-side film cutting structure 6 is successful in film cutting and the knife edge is consistent with the knife edge of the single-side film cutting structure 6 is further improved.

The clamping jaw cylinder is fixed on the clamping jaw seat 7-2, and the upper end surface of the clamping jaw bearing 7-1-2 is fixedly connected with the bottom end surface of the clamping jaw seat 7-2; the jaw seat 7-2 is fixedly provided with a through guide rod hole, and a guide rod 7-3-3 in the suspension structure 7-3 passes through the guide rod hole to suspend the jaw seat 7-2 above the material channel 5.

The suspension structure 7-3 includes: the guide rod 7-3-3, the transposition air cylinder 7-3-1 and the position adjusting rod 7-3-2 are horizontally fixed on the clamping jaw lifting structure 7-5, and the guide rod 7-3-3 penetrates through a hole 7-3-3 of the guide rod on the clamping jaw seat to hang the clamping jaw seat 7-2 above the double-side membrane cutting channel 5-2; the position adjusting rod 7-3-2 is parallel to the guide rod 7-3-3 and is fixedly connected with each clamping jaw seat 7-2; the transposition cylinder 7-3-1 is fixed on the clamping jaw lifting structure 7-5, and a piston rod of the transposition cylinder 7-3-1 is connected with a clamping jaw seat 7-2 which is closest to the transposition cylinder.

In the embodiment, two guide rods 7-3-3 positioned in the same vertical plane are horizontally arranged at different heights, two guide rod holes are formed in the clamping jaw seat 7-2, the two guide rods 7-3-3 respectively penetrate through the guide rod holes to vertically suspend the clamping jaw seat 7-2 above the double-side film cutting channel 5-2, and the horizontally arranged clamping jaw 7-1 is parallel to the double-side film cutting channel 5-2; the position adjusting rod 7-3-2 is arranged between the two guide rods 7-3-3 and is positioned on the same vertical plane with the two guide rods 7-3-3; the clamping jaw lifting structure 7-5 is realized based on a linear module driven by a servo motor, the linear module in the clamping jaw lifting structure 7-5 is perpendicular to the ground, a sliding table of the linear module driven by the servo motor is provided with a sliding table seat 7-4, and a guide rod 7-3-3 and a transposition air cylinder 7-3-1 are respectively fixed on the sliding table seat 7-4.

In the invention, the linear module driven by the servo motor in the clamping jaw lifting structure 7-5 drives the sliding table seat 7-4 to move in the vertical direction, so that the adjustment of the vertical position of the clamping jaw 7-1 fixed on the guide rod 7-3-3 is realized, the clamping jaw 7-1 can clamp diaphragms with different heights, and simultaneously the diaphragms clamped by the clamping jaw can be tensioned, thereby improving the practicability of the invention.

After the transposition air cylinder 7-3-1 is started, the clamping jaw seat 7-2 fixedly connected with the piston rod of the transposition air cylinder is pulled, and then the position adjusting rod 7-3-2 fixedly connected with each clamping jaw seat 7-2 is pulled, so that the transverse position of each clamping jaw seat 7-2 is adjusted, the clamping jaw 7-1 fixed on each clamping jaw seat 7-2 is ensured to be positioned between two adjacent bottle bodies 1, and the possibility that the clamping of the clamping jaw 7-1 on the diaphragm 2 cannot fail for blocking of the bottle bodies 1 is reduced.

The clamping jaw rotating structure 7-6 comprises a clamping jaw rotating servo motor 7-6-4, the clamping jaw rotating servo motor 7-6-4 is connected with one end of a clamping jaw rotating shaft 7-6-1 through a speed reducer 7-6-3 and a coupler 7-6-2, and the other end of the clamping jaw rotating shaft 7-6-1 is vertically and upwards arranged behind a bearing 7-6-7 and a bearing seat 7-6-5 and is fixedly connected with a rotating connecting plate 7-7; the bottom end of the clamping jaw lifting structure 7-5 is fixed on the rotary connecting plate 7-7.

In order to ensure that all the clamping jaws 7-1 can clamp the membrane 2, the guide rods 7-3-3 are vertical to the double-side membrane cutting channel 5-2 in the horizontal direction and are hung above the double-side membrane cutting channel 5-2; the hanging direction of the guide rod 7-3-3 is adjusted through the clamping jaw rotating structure 7-6; when the clamping jaw rotating servo motor 7-6-4 is adjusted, the clamping jaw rotating servo motor 7-6-4 is started to drive the clamping jaw rotating shaft 7-6-1 to rotate, and the clamping jaw rotating shaft 7-6-1 drives the rotating connecting plate 7-7, the clamping jaw lifting structure 7-5 fixed on the rotating connecting plate 7-7 and the clamping jaw 7-1 to rotate. After the membrane 2 is separated from the bottle body 1 on the stripping structure 8, the membrane 2 clamped by the clamping jaws 7-1 is rotated into the film collecting structure 13 by the clamping jaw rotating structure 7-6.

After the technical scheme of the invention is used, the single-side film cutting knife structure 6 and the double-side film cutting knife structure 6 are respectively arranged on the single-side film cutting channel 5-1 and the double-side film cutting channel 5-2 which are mutually vertical and communicated, so that three adjacent and mutually vertical side surfaces of the diaphragm 2 on the material can be ensured to be contacted with the hot melting knife; firstly, one side face of a diaphragm 2 is cut through a single-side diaphragm cutting channel 5-1, then a double-side diaphragm pushing structure 12 pushes materials, the direction of the cut side face is taken as the advancing direction, the materials enter the double-side diaphragm cutting channel 5-2, after the materials descend through a diaphragm clamping structure 7, a clamping jaw 7-1 clamps a knife edge of the separated side diaphragm 2-3, then the diaphragm clamping structure 7 rises to strain the knife edge of the separated side diaphragm 2-3, and a double-side diaphragm cutting driving structure 14 drives two diaphragm cutting knife structures 6 to move towards the direction of the single-side diaphragm cutting channel 5-1, so that the two diaphragm cutting knife structures 6 are ensured to cut the side wall of the diaphragm 2 on two adjacent side faces of the separated side diaphragm 2-3; because the knife edge cut by the single-side film cutting knife structure 6 is already pulled open, after the height and the horizontal position of the double-side film cutting knife structure 6-1 are adjusted, the knife edge of the double-side film cutting knife structure 6 can be ensured to be consistent with the knife edge of the single-side film cutting knife structure 6, so that the three side walls of the top film 2-1 of the diaphragm 2 are completely cut, and the success rate of the subsequent film stripping operation on the film stripping structure 8 is ensured. According to the invention, through the arrangement of the double-side film cutting driving structure 14, the diaphragm success rate is improved on the basis that the structures of the film cutting knife structure 6 and the film clamping structure 7 are not required to be complicated.