阅读说明：本技术 生产高强度大宽幅单向塑料格栅的冲孔设备及冲孔方法 (Punching equipment and punching method for producing high-strength large-width unidirectional plastic grating ) 是由 梁训美 陆诗德 赵纯锋 王景红 陈霜 于 2021-09-18 设计创作，主要内容包括：本发明涉及一种生产高强度大宽幅单向塑料格栅的冲孔设备及冲孔方法,其中生产高强度大宽幅单向塑料格栅的冲孔设备包括冲孔装置、位于冲孔装置下方的废料输送装置和位于废料输送装置出料端的粉碎装置；冲孔装置包括转动设置于机架上且轴线相互平行的上滚筒和下滚筒,以及分别驱动上滚筒和下滚筒转动的驱动电机,上滚筒的外表面设有若干冲压台,下滚筒的表面设有与所述冲压台适配的冲压槽,冲压槽内设有连通压缩空气的废料吹出孔。本发明针对高强度大幅宽的单向塑料格栅,采用滚动式冲孔结构,利用冲压台和冲压槽的啮合实现冲孔,减小了冲击力,冲孔的同时完成将格栅板的输送,避免了送料偏斜,实现了连续冲孔作业,提高了生产效率。(The invention relates to a punching device and a punching method for producing a high-strength large-width unidirectional plastic grid, wherein the punching device for producing the high-strength large-width unidirectional plastic grid comprises a punching device, a waste conveying device positioned below the punching device and a crushing device positioned at the discharge end of the waste conveying device; the punching device comprises an upper roller and a lower roller which are rotatably arranged on the rack and have mutually parallel axes, and a driving motor which respectively drives the upper roller and the lower roller to rotate, wherein the outer surface of the upper roller is provided with a plurality of punching tables, the surface of the lower roller is provided with a punching groove matched with the punching tables, and a waste blowing hole communicated with compressed air is arranged in the punching groove. The invention aims at the high-strength large-breadth unidirectional plastic grid, adopts a rolling type punching structure, realizes punching by utilizing the meshing of the punching table and the punching groove, reduces the impact force, completes the conveying of the grid plate while punching, avoids the deviation of feeding, realizes the continuous punching operation and improves the production efficiency.)

1. The utility model provides a punching equipment of big one-way plastic grid of broad width of production high strength which characterized in that: comprises a punching device, a waste conveying device (7) positioned below the punching device and a crushing device (8) positioned at the discharge end of the waste conveying device;

punching device sets up in the frame and axis upper roll (1) and lower roll (5) that are parallel to each other including rotating to and drive upper roll and lower roll pivoted driving motor respectively, upper roll and lower roll turn to oppositely, form the grid board passageway between upper roll and the lower roll, the surface of upper roll is equipped with a plurality of punching press platforms (2), the surface of lower roll be equipped with punching press groove (15) of punching press platform adaptation, be equipped with intercommunication compressed air's waste material in the punching press groove and blow out hole (14).

2. A punching apparatus for producing a high-strength large-width unidirectional plastic grid according to claim 1, wherein: the frame is also provided with a brush roller (6) positioned on the discharge side of the upper roller and a motor for driving the brush roller to rotate, the axial direction of the brush roller is parallel to the axial direction of the upper roller, the rotation direction of the brush roller is consistent with that of the upper roller, and the bristles of the brush roller extend to the outer surface of the upper roller.

3. The punching apparatus for producing a high-strength large-width unidirectional plastic grid according to claim 2, wherein: the front side and the rear side of a grating plate channel formed by the upper roller and the lower roller are respectively provided with a supporting roller set (3), the supporting roller set (3) comprises an upper supporting roller and a lower supporting roller, a supporting channel matched with a grid plate is formed between the upper supporting roller and the lower supporting roller, the supporting channels and the grid plate channel on the two sides are located on the same horizontal plane, the brush roller is located between the upper supporting roller on the upper roller and the rear side, and the lower edge of the brush roller and the lower edge of the upper supporting roller on the rear side are located at the same height.

4. A punching apparatus for producing a high-strength large-width unidirectional plastic grid according to claim 1, wherein: the scrap blowing hole (14) is arranged at the middle position of the bottom of the stamping groove.

5. The punching apparatus for producing a high-strength large-width unidirectional plastic grid according to claim 4, wherein: the lower roller comprises an outer cylinder body (10) and an inner cylinder body (9) penetrating through an inner hole of the outer cylinder body, the outer cylinder body and the inner cylinder body are coaxial and are fixedly connected through a radial extending radiation column (11), and a placement cavity (13) is formed between the outer cylinder body and the inner cylinder body;

the inner cylinder body is of a hollow circular tube structure, an inner hole of the inner cylinder body forms a gas distribution cavity (12) communicated with the waste material blowing hole, one end of the inner cylinder body is hermetically arranged and connected with a driving motor (17), and the other end of the inner cylinder body is connected with a compressed air supply pipe through a rotary sealing bearing (18).

6. The punching apparatus for producing a high-strength large-width unidirectional plastic grid according to claim 4, wherein: a plurality of electromagnetic valves (16) are fixedly arranged in the arranging cavity and are arranged on pipelines communicated with the waste blowing holes and the gas distributing cavity.

7. The punching apparatus for producing a high-strength large-width unidirectional plastic grid according to claim 6, wherein: the punching groove waste blowing holes which are arranged in the same row along the axial direction are communicated with the gas distribution cavity through the same electromagnetic valve.

8. A punching apparatus for producing a high-strength large-width unidirectional plastic grid according to claim 1, wherein: the waste material conveying device is a belt conveyor, and a conveying belt of the waste material conveying device is a flange belt.

9. A punching method for producing a high-strength large-width unidirectional plastic grid is characterized by comprising the following steps:

(1) the grid plate penetrates through a support channel formed by an upper support roller and a lower support roller on the front side, the front end of the grid plate extends to the grid plate channel formed by an upper roller and a lower roller, a punching table and a punching groove are meshed through the rotation of the upper roller and the lower roller, the grid plate is punched when the punching table enters the punching groove, and meanwhile, the grid plate is conveyed forwards by the rotation of the upper roller and the lower roller;

(2) if the front end of the grating plate is not separated from the stamping table after passing through the grating plate channel, the front end of the grating plate is shifted downwards through the rotation of the brush roller to separate the grating plate from the stamping table, and the front end of the grating plate is guided to a supporting channel formed by an upper supporting roller and a lower supporting roller on the rear side under the rotation and downward pressing action of the brush roller;

(3) after the punching groove is separated from the punching table, the punched waste is left in the punching groove, and when the punching groove continuously rotates for 120-150 degrees, the electromagnetic valve acts to blow out compressed air through the waste blowing hole and blow out the waste from the punching groove;

(4) the waste material blown out from the punching groove falls to the waste material conveying device, the waste material conveying device conveys the waste material to the crushing device, and the crushing device crushes the waste material so as to reuse the waste material.

10. A punching method for producing a high-strength large-width unidirectional plastic grid according to claim 9, wherein: in the step (3), the action of the electromagnetic valve means that the electromagnetic valve is continuously opened twice, the interval of the two times of opening is 0.2-0.3 seconds, the impact force of the compressed air on the waste material at the moment of opening the electromagnetic valve is utilized, and the blowing effect is improved.

Technical Field

The invention relates to the technical field of plastic grids, in particular to production of a high-strength large-width unidirectional plastic grid, and specifically relates to punching equipment and a punching method for producing the high-strength large-width unidirectional plastic grid.

Background

The geogrid is a special geosynthetic material, is widely applied to reinforcement and protection of projects such as water conservancy, highways, railways, coal mines, buildings and the like as a reinforcing material in a composite material, and can achieve the effect of improving the strength of a roadbed by reducing uneven settlement. The plastic geogrid material has the advantages of high tensile strength, low elongation, small deformation, light weight and the like, and meanwhile, the plastic geogrid material has the advantages of alkali resistance, acid resistance, ageing resistance, corrosion resistance and the like, is increasingly applied to the field of transportation, is a reinforced material which is the most widely applied at present, and is a base material for ensuring the safe operation of major infrastructure construction engineering in China.

The performance indexes of the existing unidirectional stretching plastic geogrid are as follows: the tensile strength of a high-density polyethylene (HDPE) unidirectional stretching plastic geogrid product is less than or equal to 160kN/m, the tensile strength of a polypropylene (PP) unidirectional stretching plastic geogrid product is less than or equal to 200kN/m, the tensile strength of the product cannot meet the high-standard design requirements of modern highways and railways, the conventional width of the product is mostly 2m-3m, the width is small, the construction is not easy, the progress is slow, and the overall large-area strength is influenced; the product has low strength, is easy to cause engineering collapse, and seriously threatens the life and property of people, so the development of the high-strength large-width unidirectional stretching plastic geogrid is inevitable.

However, compared with the existing geogrid, the high-strength large-width unidirectional stretching plastic geogrid has the advantages that the strength and the width are increased, the existing production equipment cannot meet the production requirements, particularly after the width is increased, the deviation is easy to occur due to uneven friction force by adopting intermittent conveying and punching, after the strength is increased, the damage to a punch is large by adopting an impact type punching mode, and the development of the stretching plastic geogrid to the high-strength large-width is not facilitated.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides punching equipment and a punching method for producing a high-strength large-width unidirectional plastic grid, which are suitable for punching operation of the high-strength large-width unidirectional plastic grid.

The invention is realized by the following technical scheme, and provides punching equipment for producing a high-strength large-width unidirectional plastic grid, which comprises a punching device, a waste conveying device positioned below the punching device and a crushing device positioned at the discharge end of the waste conveying device;

the punching device comprises an upper roller and a lower roller which are rotatably arranged on the rack and are parallel to each other in axis, and a driving motor which drives the upper roller and the lower roller to rotate respectively, the rotation directions of the upper roller and the lower roller are opposite, a grid plate channel is formed between the upper roller and the lower roller, the outer surface of the upper roller is provided with a plurality of punching tables, the surface of the lower roller is provided with a punching groove matched with the punching tables, and a waste blowing hole communicated with compressed air is arranged in the punching groove.

According to the scheme, the grid plate is punched through the punching device, the punched waste is conveyed to the crushing device through the waste conveying device, and meanwhile, the grid and the waste are treated; the punching device adopts a rolling type structure, realizes punching by utilizing the meshing of the punching table and the punching groove, reduces the impact force, and completes the forward conveying of the grid plate while the punching table is meshed with the punching groove, thereby realizing the continuous punching operation; utilize compressed air to blow off the waste material in the punching press groove, simple structure conveniently controls moreover and blows off the waste material position to waste material conveyor corresponds, reduces and bursts.

Preferably, the machine frame is further provided with a brush roller positioned on the discharge side of the upper roller and a motor for driving the brush roller to rotate, the axial direction of the brush roller is parallel to the axial direction of the upper roller, the rotation direction of the brush roller is consistent with that of the upper roller, and bristles of the brush roller extend to the outer surface of the upper roller. This optimization is through setting up the brush roller, has solved the problem that the grid plate front end probably exists not with the punching press platform separation, utilizes the rotation of brush roller, stirs down the front end of grid plate, makes its and the punching press platform separation to guarantee going on smoothly of the operation of punching a hole.

As optimization, both sides are equipped with the support roller set respectively around the grating board passageway that upper cylinder and lower cylinder formed, the support roller set includes backup roll and bottom suspension roller, goes up the support passage that forms between backup roll and the bottom suspension roller and grid tray adaptation, and the support passage and the grid tray passageway of both sides are located same horizontal plane, and the brush roller is located between the last backup roll of upper cylinder and rear side, and the lower limb of brush roller and the last backup roll lower limb of rear side are in same height. According to the optimized scheme, the front support roller set and the rear support roller set are arranged, so that the flatness of the grating plate during punching is ensured, and the punching quality is improved; through the position setting of the brush roller, the perforated grating plate smoothly enters the supporting channel at the rear side.

As optimization, the waste material blowing hole is arranged at the middle position of the bottom of the stamping groove. The setting of this optimization scheme has improved the effect of blowing off the waste material.

As optimization, the lower roller comprises an outer cylinder body and an inner cylinder body penetrating through an inner hole of the outer cylinder body, the outer cylinder body and the inner cylinder body are coaxial and are fixedly connected through a radial extending radiation column, and a placement cavity is formed between the outer cylinder body and the inner cylinder body; the inner barrel is of a hollow circular tube structure, an inner hole of the inner barrel forms a gas distribution cavity communicated with the waste material blowing hole, one end of the inner barrel is sealed and connected with a driving motor, and the other end of the inner barrel is connected with a compressed air supply pipe through a rotating sealing bearing. This optimization scheme lets in the branch air cavity with compressed air through the compressed air supply pipe, divides the compressed air to each waste material blow-out hole through branch air cavity, and simple structure has reduced the occupation to lower cylinder lateral surface space moreover.

As optimization, a plurality of electromagnetic valves are fixedly arranged in the arrangement cavity and are arranged on a pipeline communicated with the waste blowing hole and the gas distribution cavity. This optimization scheme is through setting up the solenoid valve, and convenient control compressed air's break-make has improved the flexibility of using.

And optimally, the punching groove waste blowing holes in the same row along the axial direction are communicated with the gas distribution cavity through the same electromagnetic valve. The same electromagnetic valve is used for controlling the same waste blowing hole, so that the waste in the same punching groove is discharged simultaneously, and the control is simpler.

Preferably, the waste conveying device is a belt conveyor, and the conveying belt of the waste conveying device is a flange belt. This optimization scheme's waste material conveyor adopts the flange belt to carry the waste material, prevents that the waste material from conveyer side edge dropping, has improved the collection effect to the waste material.

The scheme also provides a punching method for producing the high-strength large-width unidirectional plastic grid, which comprises the following steps:

1. the grid plate penetrates through a support channel formed by an upper support roller and a lower support roller on the front side, the front end of the grid plate extends to the grid plate channel formed by an upper roller and a lower roller, a punching table and a punching groove are meshed through the rotation of the upper roller and the lower roller, the grid plate is punched when the punching table enters the punching groove, and meanwhile, the grid plate is conveyed forwards by the rotation of the upper roller and the lower roller;

2. if the front end of the grating plate is not separated from the stamping table after passing through the grating plate channel, the front end of the grating plate is shifted downwards through the rotation of the brush roller to separate the grating plate from the stamping table, and the front end of the grating plate is guided to a supporting channel formed by an upper supporting roller and a lower supporting roller on the rear side under the rotation and downward pressing action of the brush roller;

3. after the punching groove is separated from the punching table, the punched waste is left in the punching groove, and when the punching groove continuously rotates for 120-150 degrees, the electromagnetic valve acts to blow out compressed air through the waste blowing hole and blow out the waste from the punching groove;

4. the waste material blown out from the punching groove falls to the waste material conveying device, the waste material conveying device conveys the waste material to the crushing device, and the crushing device crushes the waste material so as to reuse the waste material.

Preferably, in the step 3, the action of the electromagnetic valve means that the electromagnetic valve is continuously opened twice, the interval between the two times of opening is 0.2-0.3 seconds, and the impact force of the compressed air on the waste material at the moment of opening the electromagnetic valve is utilized, so that the blowing effect is improved.

The invention has the beneficial effects that: aiming at the high-strength large-breadth unidirectional plastic grid, a rolling type punching structure is adopted, punching is realized by utilizing the meshing of a punching platform and a punching groove, the impact force is reduced, the grid plate is conveyed while punching is finished, the feeding deflection is avoided, the continuous punching operation is realized, and the production efficiency is improved.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a structural sectional view of a lower drum;

FIG. 3 is a side view of the lower roller;

shown in the figure:

1. the device comprises an upper roller, 2, a stamping platform, 3, a supporting roller set, 4, a grating plate, 5, a lower roller, 6, a brush roller, 7, a waste conveying device, 8, a crushing device, 9, an inner barrel, 10, an outer barrel, 11, a radiation column, 12, a gas distribution cavity, 13, a placement cavity, 14, a waste blowing hole, 15, a stamping groove, 16, an electromagnetic valve, 17, a driving motor, 18 and a rotary sealing bearing.

Detailed Description

In order to clearly illustrate the technical features of the present solution, the present solution is explained below by way of specific embodiments.

As shown in fig. 1, the punching apparatus for producing the high-strength large-width unidirectional plastic grid comprises a punching device, a waste conveying device 7 located below the punching device, and a crushing device 8 located at the discharge end of the waste conveying device, wherein the waste conveying device 7 is a belt conveyor, the conveyor belt of the waste conveying device is a flange belt, the crushing device 8 adopts the prior art, and the structure of the crushing device is not repeated.

The punching device comprises an upper roller 1 and a lower roller 5 which are rotatably arranged on the rack and have mutually parallel axes, and a driving motor which respectively drives the upper roller and the lower roller to rotate, wherein the rotation directions of the upper roller and the lower roller are opposite.

The outer surface of the upper roller is provided with a plurality of punching platforms 2 which are arranged in rows along the axial direction of the upper roller, and the adjacent two rows of punching platforms are arranged at a certain distance along the circumferential direction of the upper roller, and the shapes and the intervals of the punching platforms are arranged according to the requirements of the actual grille to be produced. The surface of the lower roller is provided with a stamping groove 15 matched with the stamping table, when the upper roller and the lower roller rotate, the stamping table is meshed with the stamping groove, a through hole is formed in the grating plate 4, and a waste blowing hole 14 communicated with compressed air is arranged in the stamping groove and used for blowing out waste remained in the stamping groove.

The frame is also provided with a brush roller 6 positioned on the discharge side of the upper roller and a motor for driving the brush roller to rotate, the axial direction of the brush roller is parallel to the axial direction of the upper roller, the turning direction of the brush roller is consistent with that of the upper roller, bristles of the brush roller extend to the outer surface of the upper roller, and the bristles of the brush roller are used for shifting the front end of the grid plate, so that the grid plate is separated from the punching table.

The front side and the rear side of a grating plate channel formed by the upper roller and the lower roller are respectively provided with a supporting roller set 3, the supporting roller set 3 comprises an upper supporting roller and a lower supporting roller, a supporting channel matched with a grid plate is formed between the upper supporting roller and the lower supporting roller, the supporting channels and the grid plate channel on the two sides are located on the same horizontal plane, the brush roller is located between the upper supporting roller on the upper roller and the rear side, and the lower edge of the brush roller and the lower edge of the upper supporting roller on the rear side are located at the same height.

In order to improve the scrap discharge effect, the scrap blowing-out hole 14 of the present embodiment is opened at the middle position of the bottom of the stamping groove, and the scrap vent hole radially penetrates the outer cylinder 10.

The lower roller comprises an outer cylinder body 10 and an inner cylinder body 9 penetrating through an inner hole of the outer cylinder body, the outer cylinder body and the inner cylinder body are coaxial and are fixedly connected through a radial extending radiation column 11, and a placement cavity 13 is formed between the outer cylinder body and the inner cylinder body. The inner cylinder body is of a hollow circular tube structure, an inner hole of the inner cylinder body forms a gas distribution cavity 12 communicated with the waste material blowing hole, one end of the inner cylinder body is hermetically arranged and connected with a driving motor 17, and the other end of the inner cylinder body is connected with a compressed air supply pipe through a rotary sealing bearing 18.

In order to facilitate control, a plurality of electromagnetic valves 16 are fixedly arranged in the arranging cavity and are arranged on pipelines communicated with the waste blowing holes and the gas distributing cavity. And the punching groove waste blowing holes which are arranged in the same row along the axial direction are communicated with the gas distribution cavity through the same electromagnetic valve.

A punching method for producing a high-strength large-width unidirectional plastic grid comprises the following steps:

1. the grid plate penetrates through a support channel formed by an upper support roller and a lower support roller on the front side, the front end of the grid plate extends to the grid plate channel formed by an upper roller and a lower roller, a punching table and a punching groove are meshed through the rotation of the upper roller and the lower roller, the grid plate is punched when the punching table enters the punching groove, and meanwhile, the grid plate is conveyed forwards by the rotation of the upper roller and the lower roller;

2. if the front end of the grating plate is not separated from the stamping table after passing through the grating plate channel, the front end of the grating plate is shifted downwards through the rotation of the brush roller to separate the grating plate from the stamping table, and the front end of the grating plate is guided to a supporting channel formed by an upper supporting roller and a lower supporting roller on the rear side under the rotation and downward pressing action of the brush roller;

3. after the punching groove is separated from the punching table, the punched waste is left in the punching groove, and when the punching groove continuously rotates for 120-150 degrees, the electromagnetic valve acts to blow out compressed air through the waste blowing hole and blow out the waste from the punching groove; specifically, the action of the electromagnetic valve is to continuously open the waste material twice, the interval between the two times of opening is 0.2-0.3 seconds, the impact force of compressed air on the waste material is instantly generated by opening the electromagnetic valve, and the blowing effect is improved;

4. the waste material blown out from the punching groove falls to the waste material conveying device, the waste material conveying device conveys the waste material to the crushing device, and the crushing device crushes the waste material so as to reuse the waste material.

Of course, the above description is not limited to the above examples, and the undescribed technical features of the present invention can be implemented by or using the prior art, and will not be described herein again; the above embodiments and drawings are only for illustrating the technical solutions of the present invention and not for limiting the present invention, and the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that changes, modifications, additions or substitutions within the spirit and scope of the present invention may be made by those skilled in the art without departing from the spirit of the present invention, and shall also fall within the scope of the claims of the present invention.