CN210314322U

CN210314322U - A multistation perforating device for leather processing

Info

Publication number: CN210314322U
Application number: CN201921286223.3U
Authority: CN
Inventors: 孙立志; 徐印祥
Original assignee: Putian Yuda Shoes Material Co Ltd
Current assignee: Putian Yuda Shoes Material Co Ltd
Priority date: 2019-08-10
Filing date: 2019-08-10
Publication date: 2020-04-14
Anticipated expiration: 2029-08-10

Abstract

The utility model discloses a multistation perforating device for leather processing, which comprises a supporting table, the lateral part of brace table rotates through the bracing piece and installs a set of drive roll and three driven voller of group, step motor's output links to each other with the roller of drive roll, the support frame is installed through the bolted mounting to the lateral part of brace table, the connecting block is installed to the output of pneumatic cylinder, the lower part threaded connection of connecting block has first punching cutter, second punching cutter and third punching cutter, first spring has all been welded to the inboard of first punching cutter, second punching cutter and third punching cutter, the lower part welding of first spring has the dog, the connecting plate has all been welded to the both sides of connecting block, and is two sets of the lower part equidistance welding of connecting plate has the second spring, the common welding of lower part of second spring has the briquetting. The utility model discloses avoid the sword of punching simultaneously with the leather contact, carry out flattening and part to the cloth and fix, guarantee the quality and the effect of punching.

Description

A multistation perforating device for leather processing

Technical Field

The utility model relates to a leather processing technology field specifically is a multistation perforating device for leather processing.

Background

The leather is animal leather which is obtained by physical and chemical processing such as unhairing, tanning and the like and is denatured and not easy to rot, the leather is formed by tightly weaving natural protein fibers in a three-dimensional space, the surface of the leather is provided with a special grain layer, the grain layer has natural grains and luster, the hand feeling is comfortable, the market of leather products is gradually expanded, correspondingly, production equipment of the leather products is rapidly developed, and a punching device is more and more paid more attention as important equipment in leather processing.

Present punching generally is the multistation and punches, set up the multiunit sword of punching promptly and punch, efficiency with the improvement punches, however, the sword of punching of present multistation, its length of punching the sword is the same, this just leads to it to be contact simultaneously with the leather, the instantaneous atress of pneumatic cylinder that leads to the removal of drive punching the sword is too big, be unfavorable for its operation, on the other hand, at the in-process that punches, the cloth is generally the manual work and lays on the upper portion of brace table, be difficult to carry out the flattening to the leather, and the in-process leather that punches appears easily to punching position gathering, the quality and the effect of punching are influenced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a multistation perforating device for leather processing avoids punching the sword simultaneously and the leather contact, reduces the instantaneous atress of pneumatic cylinder, simultaneously, carries out flattening and part fixed to the cloth, guarantees the quality and the effect of punching to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a multi-station punching device for leather processing comprises a supporting table, a stepping motor and a hydraulic cylinder, wherein supporting legs are welded on the lower portion of the supporting table, a group of driving rollers and three groups of driven rollers are rotatably installed on the lateral portion of the supporting table through the matching of supporting rods and bearings, the driving rollers are opposite to the driven rollers, the stepping motor is installed on the lateral portion of the supporting table through bolts, the output end of the stepping motor is connected with a roller shaft of the driving roller through a coupler, a deslagging hole is formed in the middle of the supporting table, a slag collecting box is installed on the lower portion of the supporting table through bolts, a supporting frame is installed on the lateral portion of the supporting table through bolts, the hydraulic cylinder is installed on the lower portion of the supporting frame through bolts, a connecting block is installed at the output end of the hydraulic cylinder, and a first punching, first spring is all welded to the inboard of first punching sword, second punching sword and third punching sword, the lower part welding of first spring has the dog, the connecting plate is all welded to the both sides of connecting block, and is two sets of the lower part equidistance welding of connecting plate has the second spring, the common welding of lower part of second spring has the briquetting, the length of first punching sword, second punching sword and third punching sword increases progressively in proper order, the lower part of first punching sword, second punching sword and third punching sword is relative with row cinder hole respectively.

Preferably, rubber sleeves are adhered to the front sides of the driving roller and the driven rollers, and the gap positions between the two groups of driven rollers and between the other group of driven rollers and the driving roller are opposite to the upper wall of the supporting table.

Preferably, an inclined strut is installed between the upper side portion of the connecting block and the output end of the hydraulic cylinder through a bolt.

Preferably, the first punching knife, the second punching knife and the third punching knife are equidistantly screwed on the lower part of the connecting block.

Preferably, the lower part equidistance welding of connecting plate has the guide bar, every group the guide bar is in every group respectively the inboard of second spring.

Preferably, a rubber pad is adhered to the lower part of the pressing block, and rubber bumps are arranged on the lower part of the rubber pad at equal intervals.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the leather is placed on the upper portion of a supporting table, the leather is located between driven rollers and a driving roller, a stepping motor is operated, the leather is driven to move on the upper portion of the supporting table by the operation of the stepping motor, the leather is flatly paved on the upper portion of the supporting table by the aid of cooperation of the driven rollers and the driving roller, after the stepping motor is stopped, a hydraulic cylinder is operated, the hydraulic cylinder is operated to push a connecting block to move, the connecting block moves to drive a connecting plate, a first punching knife, a second punching knife and a third punching knife to move, a second spring and a pressing block move along with the movement of the connecting plate, the pressing block is pressed on the upper portion of the leather first, the flatly-processed leather is fixed, deviation of the leather to a residue discharge hole portion due to stress in a subsequent punching process is reduced, and;

2. the pneumatic cylinder continues to move down for the third sword that punches, second sword and the first sword that punches contact with the leather in proper order, and insert corresponding row's cinder hole, at the in-process that punches, the dog contacts with the leather, and hold up power to first spring at the in-process that punches uncompleted, after punching, hold the first spring of power and resume the shape, promote the dog and remove, make the inside useless leather of entering sword that punches release, and arrange into the collection sediment case through row cinder hole under the effect of gravity, the third sword that punches, second sword and the first sword that punches contact with the leather in proper order, the pneumatic cylinder atress that the punching sword was accomplished simultaneously with the leather contact and is punched and lead to is too big, the life of extension pneumatic cylinder.

Drawings

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

FIG. 2 is a schematic side view and a schematic front sectional view of the structure of the connecting block part of the present invention;

figure 3 is the side view cross-sectional schematic diagram of the partial structure of the drive roll of the present invention.

In the figure: 1. a support table; 2. a stepping motor; 3. a hydraulic cylinder; 4. a support leg; 5. a support bar; 6. a drive roll; 7. a driven roller; 8. a slag discharge hole; 9. a slag collection box; 10. a support frame; 11. connecting blocks; 12. a first hole punching cutter; 13. a second hole punching knife; 14. a third hole punching knife; 15. a first spring; 16. a stopper; 17. a connecting plate; 18. a second spring; 19. briquetting; 20. a rubber sleeve; 21. bracing; 22. a guide bar; 23. a rubber pad; 24. and (4) rubber bumps.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: a multi-station punching device for leather processing comprises a supporting table 1, a stepping motor 2 and a hydraulic cylinder 3, wherein a supporting leg 4 is welded at the lower part of the supporting table 1, a group of driving rollers 6 and three groups of driven rollers 7 are rotatably installed at the side part of the supporting table 1 through a supporting rod 5 and a bearing in a matched manner, the driving rollers 6 are opposite to the group of driven rollers 7, the stepping motor 2 is installed at the side part of the supporting table 1 through bolts, the output end of the stepping motor 2 is connected with a roller shaft of the driving rollers 6 through a coupler, a slag discharging hole 8 is formed in the middle part of the supporting table 1, a slag collecting box 9 is installed at the lower part of the supporting table 1 through bolts, a supporting frame 10 is installed at the side part of the supporting table 1 through bolts, the hydraulic cylinder 3 is installed at the lower part of the supporting frame 10 through bolts, a connecting block 11, the inner sides of the first punching knife 12, the second punching knife 13 and the third punching knife 14 are all welded with a first spring 15, the lower portion of the first spring 15 is welded with a stop block 16, the two sides of the connecting block 11 are all welded with connecting plates 17, the lower portions of the two groups of connecting plates 17 are welded with second springs 18 at equal intervals, the lower portion of each second spring 18 is welded with a pressing block 19, the lengths of the first punching knife 12, the second punching knife 13 and the third punching knife 14 are sequentially increased in an increasing mode, and the lower portions of the first punching knife 12, the second punching knife 13 and the third punching knife 14 are opposite to the slag discharge hole 8 respectively.

Specifically, rubber sleeves 20 are adhered to the surfaces of the driving roller 6 and the driven roller 7, the gap positions between the two groups of driven rollers 7 and between the other group of driven rollers 7 and the driving roller 6 are opposite to the upper wall of the supporting table 1, and the rubber sleeves 20 provide flexible contact, so that the leather is driven to move conveniently.

Specifically, install bracing 21 through the bolt between the last side of connecting block 11 and the output of pneumatic cylinder 3, bracing 21 increases connecting block 11 and the stability and the intensity of being connected of the 3 output of pneumatic cylinder.

Specifically, the first punching blade 12, the second punching blade 13 and the third punching blade 14 are screwed to the lower portion of the joint block 11 at equal intervals.

Specifically, guide rods 22 are welded to the lower portion of the connecting plate 17 at equal intervals, each group of guide rods 22 is located on the inner side of each group of second springs 18, and each guide rod 22 is a stainless steel rod with a smooth surface and is used for guiding the second springs 18.

Specifically, a rubber pad 23 is adhered to the lower portion of the pressing block 19, rubber bumps 24 are equidistantly arranged on the lower portion of the rubber pad 23, and the rubber pad 23 is matched with the rubber bumps 24 to increase friction force and elasticity of contact with leather, so that the leather is fixed and the leather is prevented from being damaged.

The working principle is as follows: when the leather fixing device is used, leather is placed on the upper portion of the supporting table 1, the leather is located between the driven rollers 6 and between the driven rollers 7 and the driving rollers 6, the stepping motor 2 is operated to drive the leather to move on the upper portion of the supporting table 1, the leather is flatly paved on the upper portion of the supporting table 1 by using the cooperation of the driven rollers 7 and the driving rollers 6, after the stepping motor 2 is stopped, the hydraulic cylinder 3 is operated, the connecting block 11 is driven to move by the operation of the hydraulic cylinder 3, the connecting block 11 drives the connecting plate 17, the first punching knife 12, the second punching knife 13 and the third punching knife 14 to move, the second spring 18 and the pressing block 19 move along with the movement of the connecting plate 17, the pressing block 19 is firstly pressed on the upper portion of the leather, the flatly-finished leather is fixed, and the deviation of the leather to the residue discharge hole 8 due, the quality and the effect of punching are guaranteed, the hydraulic cylinder 3 continues to move downwards, a third punching knife 14, a second punching knife 13 and a first punching knife 12 sequentially punch holes in contact with leather, corresponding slag discharge holes 8 are inserted, in the punching process, a stop block 16 is in contact with the leather, the first spring 15 is stored in the incomplete punching process, after punching is completed, the stored first spring 15 recovers the shape, the stop block 16 is pushed to move, waste leather entering the punching knife is pushed out, the waste leather is discharged into a slag collection box 9 through the slag discharge holes 8 under the action of gravity, the third punching knife 14, the second punching knife 13 and the first punching knife 12 sequentially contact with the leather, the phenomenon that the punching knife and the leather are contacted simultaneously to complete punching is avoided, the stress of the hydraulic cylinder 3 is overlarge, and the service life of the hydraulic cylinder 3 is prolonged.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a multistation perforating device for leather processing, includes brace table (1), step motor (2) and pneumatic cylinder (3), its characterized in that: the lower part of the supporting table (1) is welded with supporting legs (4), the lateral part of the supporting table (1) is rotatably provided with a set of driving roller (6) and three sets of driven rollers (7) through the matching of a supporting rod (5) and a bearing, the driving roller (6) is opposite to the driven rollers (7), the stepping motor (2) is arranged on the lateral part of the supporting table (1) through bolts, the output end of the stepping motor (2) is connected with the roller shaft of the driving roller (6) through a shaft coupling, the middle part of the supporting table (1) is provided with a slag discharge hole (8), the lower part of the supporting table (1) is provided with a slag collection box (9) through bolts, the lateral part of the supporting table (1) is provided with a supporting frame (10) through bolts, the hydraulic cylinder (3) is arranged on the lower part of the supporting frame (10) through bolts, the lower part of the connecting block (11) is in threaded connection with a first punching knife (12), a second punching knife (13) and a third punching knife (14), a first spring (15) is welded on the inner sides of the first punching knife (12), the second punching knife (13) and the third punching knife (14), the lower part of the first spring (15) is welded with a stop block (16), the two sides of the connecting block (11) are both welded with connecting plates (17), the lower parts of the two groups of connecting plates (17) are equidistantly welded with second springs (18), a pressing block (19) is welded at the lower part of the second spring (18) together, the lengths of the first punching knife (12), the second punching knife (13) and the third punching knife (14) are sequentially increased, the lower parts of the first punching knife (12), the second punching knife (13) and the third punching knife (14) are respectively opposite to the slag discharge hole (8).

2. The multi-station punching device for leather processing according to claim 1, wherein: rubber sleeves (20) are adhered to the surfaces of the driving roller (6) and the driven rollers (7), and the gap positions between the two groups of driven rollers (7) and the gap positions between the other group of driven rollers (7) and the driving roller (6) are opposite to the upper wall of the supporting table (1).

3. The multi-station punching device for leather processing according to claim 1, wherein: and an inclined strut (21) is arranged between the upper side part of the connecting block (11) and the output end of the hydraulic cylinder (3) through a bolt.

4. The multi-station punching device for leather processing according to claim 1, wherein: the first punching knife (12), the second punching knife (13) and the third punching knife (14) are connected to the lower part of the connecting block (11) in a threaded mode at equal intervals.

5. The multi-station punching device for leather processing according to claim 1, wherein: the lower part equidistance welding of connecting plate (17) has guide bar (22), every group guide bar (22) are in every group respectively the inboard of second spring (18).

6. The multi-station punching device for leather processing according to claim 1, wherein: the lower part of the pressing block (19) is pasted with a rubber pad (23), and rubber convex points (24) are arranged on the lower part of the rubber pad (23) at equal intervals.