阅读说明：本技术 一种纸制品热压成型机 (Paper product hot-pressing forming machine ) 是由 潘耀华 岑刚 焦建华 胡庆军 何明旭 于 2020-07-25 设计创作，主要内容包括：本发明属于压机技术领域,尤其涉及一种纸制品热压成型机。它解决现有成型机设计不合理的技术问题。一种纸制品热压成型机包括下机座和安装在下机座顶面的下热压成型模,下机座上连接有若干支撑柱并且在所述支撑柱的顶部连接有上机座,还包括位于下机座和上机座之间的上模升降座,在上模升降座上设有若干分别设有与所述支撑柱一一滑动连接的滑动导向件,在上模升降座的下表面设有位于下热压成型模上方的上热压成型模,在上机座上设有与上模升降座连接的伺服大推力缸。本申请的优点：设备结构紧凑并且工作更加稳定。(The invention belongs to the technical field of presses, and particularly relates to a hot-pressing forming machine for paper products. The forming machine solves the technical problem that an existing forming machine is unreasonable in design. The paper product hot-press forming machine comprises a lower machine base and a lower hot-press forming die arranged on the top surface of the lower machine base, wherein the lower machine base is connected with a plurality of support columns, the top of each support column is connected with an upper machine base, the paper product hot-press forming machine further comprises an upper die lifting seat positioned between the lower machine base and the upper machine base, a plurality of sliding guide pieces which are respectively in one-to-one sliding connection with the support columns are arranged on the upper die lifting seat, an upper hot-press forming die positioned above the lower hot-press forming die is arranged on the lower surface of the upper die lifting seat, and a large servo. The application has the advantages that: the device has compact structure and more stable operation.)

1. A hot-press forming machine for paper products comprises a lower machine base and a lower hot-press forming die arranged on the top surface of the lower machine base, wherein the lower machine base is connected with a plurality of support columns, the top of each support column is connected with an upper machine base, the hot-press forming machine is characterized by also comprising an upper die lifting seat positioned between the lower machine base and the upper machine base, the upper die lifting seat is provided with a plurality of sliding guide pieces which are respectively and one by one slidably connected with the support columns, the lower surface of the upper die lifting seat is provided with an upper hot-press forming die positioned above the lower hot-press forming die, the upper machine base is provided with a servo large thrust cylinder connected with the upper die lifting seat, the servo large thrust cylinder comprises vertically distributed fixed cylinder barrels and thrust screw rods which are penetrated in the fixed cylinder barrels and are rotatably connected with the fixed cylinder barrels, the top of the fixed, the upper end of thrust lead screw upwards runs through and dodges the hole and stretch into to fixed frame in, the thrust lead screw upper end is connected with servo drive arrangement through taking transmission structure, still include the upper end stretch into to fixed cylinder in and the cover establish the lift thrust section of thick bamboo on the thrust lead screw, lift thrust section of thick bamboo and fixed cylinder circumference fixed connection and the lower extreme of lift thrust section of thick bamboo stretch out to the lower extreme of fixed cylinder, be equipped with between lift thrust section of thick bamboo and the thrust lead screw and be used for making the transmission structure that the fixed cylinder axial of lift thrust section of thick bamboo goes up and down relatively when the thrust lead screw rotates.

2. A paper product thermoforming machine as claimed in claim 1, characterized in that a vertical through hole is provided in the centre of the upper frame, and the lower end of the fixed cylinder extends into the vertical through hole and is fixed in the vertical through hole.

3. A paper product thermoforming machine as claimed in claim 1, characterized in that the upper end of the outer wall of the lifting thrust cylinder is provided with a plurality of rings of outer convex rings which are distributed at intervals, the outer wall of each outer convex ring is in contact with the inner wall of the fixed cylinder, and a plurality of first annular spaces are formed between the lifting thrust cylinder and the outer convex rings.

4. The paper product thermoforming machine of claim 3, characterized in that the lowest outer convex ring and the outer wall of the lifting thrust cylinder form a circular table outer step and the diameter of the circular table outer step is smaller than the outer diameter of the lifting thrust cylinder, a circular table inner step is arranged at the lower end of the inner wall of the fixed cylinder, and a lower contact limiting sleeve which is fixed on the circular table inner step and sleeved on the lifting thrust cylinder, the inner diameter of the lower contact limiting sleeve is equal to the inner diameter of the fixed cylinder and the inner wall of the lower contact limiting sleeve is in contact with the outer wall of the lifting thrust cylinder, and the upper ends of the circular table outer step, the fixed cylinder and the lower contact limiting sleeve form a second annular space.

5. A paper product thermoforming machine as claimed in claim 4, characterised in that the lowermost raised ring has an annular restraining plane at its lower end, the annular restraining plane being located above the upper end of the lower contact limiting sleeve.

6. A paper product thermoforming machine as claimed in claim 1, characterized in that the upper end of the inner wall of the fixed cylinder is provided with a bearing hole, the inner diameter of the bearing hole is smaller than the inner diameter of the fixed cylinder, the upper end of the thrust screw rod passes through the bearing hole, the middle part of the bearing hole is provided with an upper annular shoulder, the thrust screw rod is provided with a lower annular shoulder at the lower opening of the bearing hole, the thrust screw rod is sleeved with a thrust roller bearing between the lower annular shoulder and the upper annular shoulder, the thrust screw rod is sleeved with a thrust roller bearing group which is arranged in the bearing hole and is placed on the upper surface of the upper annular shoulder, and a bearing cover is arranged between the upper opening of the bearing hole and the thrust roller bearing group.

7. A paper product thermoforming machine as claimed in claim 1, characterised in that the servo drive comprises 1-4 servo motors, the belt drive comprises 1-4 belt sets, a servo motor is connected to a belt set, and the servo motors operate synchronously.

8. The paper product hot-press forming machine as claimed in claim 1, wherein a flange ring is sleeved at the lower end of the lifting thrust cylinder, a pressure sensor for sealing the lower end of the lifting thrust cylinder is connected to the lower end face of the flange ring, and the pressure sensor is connected to the upper die lifting seat.

9. A paper product thermoforming machine as claimed in claim 1, characterised in that four corners of the lower frame are opposite to four corners of the upper frame, the opposite corners of the lower frame and the upper frame are connected by a corner block, four of the support columns are provided and a support column is fixed to each corner of the lower frame, the upper ends of the support columns are fixed to the opposite corners of the upper frame, and the corner block is L-shaped in cross-section and located outside the support columns.

10. A paper product thermoforming machine as claimed in claim 9, characterised in that the sliding guide is cylindrical, the sliding guide is provided at each corner of the upper and lower surfaces of the upper mold lifting base, and the support post penetrates through the upper and lower sliding guides.

11. A paper product thermoforming machine as claimed in claim 1, characterised in that there are two servo high thrust cylinders, and the two servo high thrust cylinders are parallel to each other and are lifted synchronously.

Technical Field

The invention belongs to the technical field of presses, and particularly relates to a hot-pressing forming machine for paper products.

Background

The hot press forming machine is widely applied to the hot press manufacturing process of the pulp molding product.

The upper end of the hot-press forming machine is provided with a power force which is used for forcing the upper hot-press extrusion die to move downwards, and the power force is generally driven by a hydraulic cylinder.

When an upper moving die of the existing molding press descends, the upper moving die is lifted through a guide rod at the top of the press, and the guide rod occupies the space at the top of the equipment, so that the installation position of a hydraulic cylinder needs to be further increased, and the volume of the equipment is larger;

secondly, it is influenced by hot pressing temperature and its working property easily of pneumatic cylinder, and the use is restricted, and simultaneously, thrust still waits to promote further.

Disclosure of Invention

The invention aims to solve the problems and provides a hot-press forming machine for paper products, which can solve the technical problems.

In order to achieve the purpose, the invention adopts the following technical scheme:

a paper product hot-press forming machine comprises a lower machine base and a lower hot-press forming die arranged on the top surface of the lower machine base, wherein the lower machine base is connected with a plurality of support columns, the top of each support column is connected with an upper machine base, the upper machine base is positioned between the lower machine base and the upper machine base, the upper machine base is provided with a plurality of sliding guide pieces which are respectively in one-to-one sliding connection with the support columns, the lower surface of the upper machine base is provided with an upper hot-press forming die positioned above the lower hot-press forming die, the upper machine base is provided with a servo large thrust cylinder connected with the upper machine base, the servo large thrust cylinder comprises fixed cylinder barrels which are vertically distributed and thrust screw rods which penetrate through the fixed cylinder barrels and are rotatably connected with the fixed cylinder barrels, the top of the fixed cylinder barrels is provided with a fixed frame, the fixed frame is provided with avoiding holes communicated with the fixed cylinder barrels, the upper end of the thrust screw rod is connected with the servo driving device through a belt transmission structure, the lifting thrust cylinder is arranged on the thrust screw rod in a sleeved mode, the upper end of the lifting thrust cylinder extends into the fixed cylinder barrel, the lifting thrust cylinder is fixedly connected with the fixed cylinder barrel in the circumferential direction, the lower end of the lifting thrust cylinder extends out of the lower end of the fixed cylinder barrel, and a transmission structure used for enabling the lifting thrust cylinder to axially lift relative to the fixed cylinder barrel when the thrust screw rod rotates is arranged between the lifting thrust cylinder and the thrust screw rod.

Preferably, a vertical through hole is formed in the center of the upper base, and the lower end of the fixed cylinder extends into the vertical through hole and is fixed in the vertical through hole.

Preferably, the upper end of the outer wall of the lifting thrust cylinder is provided with a plurality of circles of outer convex rings distributed at intervals, the outer wall of each outer convex ring is in contact with the inner wall of the corresponding fixed cylinder barrel, and a plurality of first annular spaces are formed between the lifting thrust cylinder and the corresponding outer convex rings.

Preferably, the outer convex ring on the lowest side and the outer wall of the lifting thrust cylinder form a circular table outer step, the diameter of the circular table outer step is smaller than the outer diameter of the lifting thrust cylinder, a circular table inner step is arranged at the lower end of the inner wall of the fixed cylinder barrel, the circular table inner step is fixed on the circular table inner step and sleeved on the lower contact limiting sleeve of the lifting thrust cylinder, the inner diameter of the lower contact limiting sleeve is equal to the inner diameter of the fixed cylinder barrel, the inner wall of the lower contact limiting sleeve is in contact with the outer wall of the lifting thrust cylinder, and a second annular space is formed at the upper ends of the circular table outer.

Preferably, the lower end face of the outer convex ring at the lowest side is an annular limiting plane, and the annular limiting plane is located above the upper end face of the lower contact limiting sleeve.

Preferably, the inner wall upper end at fixed cylinder is equipped with the dead eye, the internal diameter of dead eye is less than the internal diameter of fixed cylinder, thrust lead screw upper end runs through the dead eye, be equipped with annular convex shoulder on the middle part of dead eye, be equipped with the lower annular convex shoulder that is located dead eye lower bore mouth on the thrust lead screw, the cover is equipped with the thrust roller bearing that is located between annular convex shoulder and the last annular convex shoulder down on the thrust lead screw, the cover is equipped with the thrust roller bearing group of installing in the dead eye and putting at last annular convex shoulder upper surface on the thrust lead screw, and set up the bearing cap between dead eye upper bore mouth and thrust roller bearing group.

Preferably, a bearing spacer is arranged between the lower annular shoulder and the thrust roller bearing.

Preferably, the servo driving device comprises 1-4 servo motors, the belt transmission structure comprises 1-4 belt groups, one servo motor is connected with one belt group, and the servo motors run synchronously.

Preferably, the transmission structure comprises a nut fixed at the upper end of the lifting thrust cylinder, the nut is sleeved on the thrust screw rod and is in threaded connection with the thrust screw rod, and the nut is located below the lower annular shoulder.

Preferably, the servo driving device is fixed on the top of the fixed frame, and the belt transmission structure is positioned in the fixed frame.

Preferably, the lower end of the lifting thrust cylinder is sleeved with a flange ring, and the lower end face of the flange ring is connected with a pressure sensor for sealing the lower end of the lifting thrust cylinder.

Preferably, the belt set comprises a first belt wheel sleeved at the upper end of the thrust screw rod and located in the fixed frame, an output shaft of the servo motor extends into the fixed frame and is connected with a second belt wheel and a belt wheel belt wound on the first belt wheel and the second belt wheel.

Preferably, the inner wall of the fixed cylinder barrel is provided with an inner cylindrical surface, the outer wall of the lifting thrust barrel is provided with an outer cylindrical surface, and the inner cylindrical surface is matched with the outer cylindrical surface.

Preferably, four corners of the lower base are opposite to four corners of the upper base one by one, the corners of the lower base opposite to the corners of the upper base one by one are connected through a corner stopper, four support columns are provided, each corner of the lower base is respectively fixed with one support column, the upper ends of the support columns are fixed at the opposite corners of the upper base, and the cross sections of the corner stoppers are L-shaped and located outside the support columns.

Preferably, the sliding guide is cylindrical, the sliding guide is provided at each corner of the upper and lower surfaces of the upper mold lifting base, and the support column penetrates through the upper and lower sliding guides.

Preferably, there are two servo large thrust cylinders, and the two servo large thrust cylinders are parallel to each other and perform synchronous lifting action.

Compared with the prior art, the hot-press forming machine for the paper products has the advantages that:

by utilizing the direct guide sliding connection of the upper die lifting seat and the support column, the problem of the top space of the forming machine can be solved, so that the integral structure is more compact, and the lifting operation position is more accurate and reliable.

Utilize servo big thrust cylinder, it does not need hydraulic oil, can solve hot pressing oil and reduce the problem of working property because hot pressing temperature influences, simultaneously, can also provide big thrust performance to enlarge commonality and practicality.

Drawings

FIG. 1 is a schematic sectional structure diagram of a large thrust cylinder provided by the invention.

Fig. 2 is an enlarged schematic view of a portion a in fig. 1.

Fig. 3 is an enlarged schematic view of the structure at B in fig. 1.

Fig. 4 is an enlarged schematic view of the structure at C in fig. 1.

Fig. 5 is a schematic structural view of a hot press forming machine provided by the present invention.

Fig. 6 is a schematic structural diagram of the second embodiment of the present invention.

Fig. 7 is a schematic view of an explosion structure of the hot press forming machine provided by the invention after a large thrust cylinder is removed.

Fig. 8 is a schematic cross-sectional structure diagram of the hot press forming machine provided by the invention with the large thrust cylinder removed.

Fig. 9 is a schematic structural view of an upper mold lifting seat provided by the present invention.

Fig. 10 is a schematic cross-sectional view of an upper mold lifting base according to the present invention.

Fig. 11 is a schematic structural diagram of the fourth embodiment of the present invention.

In the figure, a fixed cylinder barrel 1, a circular truncated cone inner step 10, a bearing hole 11, an upper annular convex shoulder 12, a thrust screw rod 2, a lower annular convex shoulder 20, a thrust roller bearing 21, a thrust roller bearing group 22, a bearing cover 23, a bearing spacer 24, a fixed frame 3, an avoidance hole 30, a belt transmission structure 4, a servo driving device 5, a lifting thrust cylinder 6, an outer convex ring 60, an annular limiting plane 600, a circular truncated cone outer step 61, a lower contact limiting sleeve 62, a nut 63, a flange ring 64, a pressure sensor 65, a lower machine base 70, a lower hot press forming die 71, a support column 72, an upper machine base 73, a vertical through hole 730, an upper machine lifting base 74, a lower machine base 740, an upper machine base 741, a rectangular frame 742, a circular cylinder 743, a reinforcing block 744, a sliding guide 75, an upper hot press forming die 76, a vertical connecting column 77 and a corner.

Detailed Description

The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.