Continuous punching device for rubber products

Abstract

A continuous punching device for rubber products belongs to the technical field of punching equipment and comprises an equipment main body, a working cavity is formed in the outer wall of the equipment main body, a hydraulic cylinder is mounted at the top end of the working cavity, the output end of the hydraulic cylinder extends into an inner cavity of the working cavity, a punching die is assembled in the inner cavity of the working cavity, and the punching die is arranged in the working cavity. A second support is installed on the outer wall of the equipment body, and a winding part is assembled at the top end of the second support. The winding part comprises two symmetrically-arranged fixing discs, and a plurality of sliding ways are formed in the outer walls of the fixing discs in the circumferential direction. According to the continuous punching device for the rubber products, continuous punching and cutting of rubber sheets can be achieved, meanwhile, residual rubber parts remaining at the top ends of the rubber sheets can be automatically swept off, manual sorting is not needed, the labor cost is saved, in addition, cut rubber sheet bodies can be automatically wound, and the production efficiency is improved. And the influence of excessive accumulation on subsequent normal feeding work is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of punching equipment, and in particular relates to a continuous punching device for rubber products. Background Art

[0002] Rubber refers to a highly elastic polymer material with reversible deformation. It is elastic at room temperature and can produce large deformation under a small external force. It can return to its original shape after the external force is removed. Rubber is a completely amorphous polymer with a low glass transition temperature (Tg) and a large molecular weight, greater than hundreds of thousands. Rubber is divided into natural rubber and synthetic rubber. Natural rubber is processed from the gum extracted from rubber trees, rubber grass and other plants; synthetic rubber is obtained by polymerization of various monomers. Rubber products are widely used in industry and life.

[0003] Rubber parts are usually made from a whole piece of rubber sheet, which is obtained through continuous stamping and cutting, or a rubber sheet with holes of a specific shape, or an independent rubber part with a hole shape obtained by punching. The corresponding continuous stamping equipment is used in this process.

[0004] In the rubber continuous stamping equipment currently used, after punching holes, most of the parts separated from the rubber sheet will fall off by themselves, but a small number of parts will be dislocated under the action of external force and cannot fall off by themselves, and will stay on the top of the rubber sheet and follow the transmission, requiring manual sorting, wasting labor costs. At the same time, the existing stamping equipment cannot automatically rewind the cut rubber sheet body, which will take up space, and if the cut rubber sheet body is piled up too much, the uncut part will be pulled by gravity, affecting the normal feeding work. Based on the above problems, the present utility model is proposed. Utility Model Content

[0005] In view of the problems existing in the prior art, such as a small number of parts being dislocated under the action of external force after punching and unable to fall off by themselves, and the cut rubber sheet body being unable to be automatically rolled up, the utility model provides a continuous punching device for rubber products, which can automatically roll up the cut rubber sheet body to prevent the part of the rubber sheet body from piling up on one side of the equipment, preventing excessive accumulation from affecting the normal feeding of the rubber sheet, and can also automatically sweep away the punched parts remaining in the rubber sheet body, without the need for staff to sort them one by one. The specific technical scheme is as follows:

[0006] A continuous punching device for rubber products, comprising: an equipment body, an outer wall of the equipment body is provided with a working cavity, a hydraulic cylinder is installed at the top of the working cavity, and the output end of the hydraulic cylinder extends into the inner cavity of the working cavity, the inner cavity of the working cavity is equipped with a punching die, a second bracket is installed on the outer wall of the equipment body, and a winding portion is installed at the top of the second bracket;

[0007] The winding part includes: two symmetrically arranged fixed disks, the outer wall of the fixed disk is provided with a plurality of slideways along the circumferential direction, the inner cavity of the slideway is slidably provided with a movable seat, the outer wall of the movable seat is provided with one end of a spring, and the other end of the spring is provided on the inner wall of the slideway, the outer walls of the front and rear two corresponding movable seats are respectively rotatably provided with the front and rear ends of the limiting roller, a first automatic force roller is installed between the two fixed disks, and the plurality of the limiting rollers are located on the outside of the first automatic force roller.

[0008] In the above technical solution, mounting plates are respectively installed at the front and rear ends of the first automatic power roller, and a plurality of bolts are equidistantly installed on the outer wall of the mounting plate along the circumferential direction. The bolts penetrate the outer wall of the fixed plate, and nuts are screwed on the outer wall of the bolts.

[0009] In the above technical solution, a plurality of feed guide roller groups are respectively installed on the left and right sides of the inner cavity bottom end of the working cavity.

[0010] In the above technical solution, a first bracket is installed on the side of the inner cavity bottom end of the working cavity opposite to the fixed plate, and a cleaning roller is rotatably installed on the top end of the first bracket.

[0011] In the above technical solution, the stamping die includes a movable die and a fixed die, the movable die is installed at the output end of the hydraulic cylinder, the fixed die is installed at the bottom end of the inner cavity of the working cavity, and the positions of the movable die and the fixed die correspond to each other.

[0012] In the above technical solution, a channel is installed in the inner cavity of the equipment body, one end of the channel corresponds to the fixed mold position, and the other end of the channel is connected to the outside.

[0013] In the above technical solution, a PLC controller is installed on the outer wall of the equipment body, and the PLC controller is electrically connected to the hydraulic cylinder and the feed guide roller group respectively.

[0014] Compared with the prior art, the utility model of a continuous punching device for rubber products has the following beneficial effects:

[0015] First, the problem that the main body of the cut rubber sheet cannot be automatically rolled up, the utility model can automatically roll up the rubber sheet wrapped around its outer wall through the rotation of the first automatic force roller, when the rubber sheet is cut and extends out of the inner cavity of the working cavity, it can be rolled up with the rotation of the first automatic force roller;

[0016] Second, when the first automatic roller rotates to rewind the rubber sheet, the elastic force of the spring is used to drive the movable seat close to the center of the fixed disk, so that each limiting roller fits the first automatic roller, thereby pressing the rubber sheet limited at the outer wall of the first automatic roller to ensure the normal rewinding work. At the same time, when the rewinding thickness increases, the movable seat will move outward;

[0017] 3. Aiming at the problem that a small number of parts will be dislocated under the action of external force after punching and cannot fall off by themselves, the utility model positions and transports the rubber sheet by rolling and limiting the feeding guide roller group, and at the same time, a small number of parts on the top of the rubber sheet are automatically swept off by the rotation of the cleaning roller, without manual sorting, thus saving manpower;

[0018] Fourth, the utility model controls the extension and retraction rate of the output end of the hydraulic cylinder through the PLC controller, controls the interval of each punching, and can also control the conveying speed of the feed guide roller group, thereby accurately controlling the continuous cutting of the rubber sheet, and is easy to use;

[0019] In summary, the utility model can realize continuous punching and cutting of rubber sheets, and can automatically sweep away the residual rubber parts remaining on the top of the rubber sheets without manual sorting, thus saving labor costs. In addition, the cut rubber sheet body can also be automatically rolled up to avoid excessive accumulation affecting the subsequent normal feeding work. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is the front view of the utility model;

[0021] Figure 2 This is a schematic diagram of the structure of the limiting roller of the utility model;

[0022] Figure 3 This is a schematic diagram of the structure of the first automatic power roller of the utility model;

[0023] Figure 1-Figure 3 Among them, 1. Equipment body, 2. Working chamber, 3. Hydraulic cylinder, 4. Moving mold, 5. Fixed mold, 6. Channel, 7. Feed guide roller group, 8. First bracket, 9. Cleaning roller, 10. Second bracket, 11. Fixed plate, 12. Slide, 13. Moving seat, 14. Spring, 15. Limiting roller, 16. First automatic power roller, 17. Mounting plate, 18. Bolt, 19. Nut, 20. PLC controller. DETAILED DESCRIPTION

[0024] The following is a combination of specific implementation cases and attached Figure 1-Figure 3 The present invention is further described below, but the present invention is not limited to these embodiments.

[0025] For the problem that the cut rubber sheet cannot be automatically rolled up, refer to Figure 1-Figure 3A continuous punching device for rubber products is proposed, comprising: an equipment body 1, a working chamber 2 is opened on the outer wall of the equipment body 1, a hydraulic cylinder 3 is installed at the top of the working chamber 2, and the output end of the hydraulic cylinder 3 extends into the inner chamber of the working chamber 2, the inner chamber of the working chamber 2 is equipped with a stamping die, and opening the hydraulic cylinder 3 can make the stamping die close to realize the punching of the rubber sheet, a second bracket 10 is installed on the outer wall of the equipment body 1, and a winding part is installed at the top of the second bracket 10, wherein the stamping die includes a movable die 4 and a fixed die 5, the movable die 4 is installed at the output end of the hydraulic cylinder 3, the fixed die 5 is installed at the bottom of the inner chamber of the working chamber 2, and the positions of the movable die 4 and the fixed die 5 correspond, the rubber sheet is located at the top of the fixed die 5, the movable die 4 descends and closes with the fixed die 5 to realize punching, a channel 6 is installed in the inner chamber of the equipment body 1, one end of the channel 6 corresponds to the position of the fixed die 5, and the other end of the channel 6 is connected to the outside world, and the punched part falls into the inner chamber of the channel 6 through the fixed die 5, and slides to a fixed point to realize centralized collection.

[0026] The winding part includes: two symmetrically arranged fixed disks 11, the outer wall of the fixed disk 11 is provided with a plurality of slideways 12 along the circumferential direction, the inner cavity of the slideway 12 is slidably provided with a moving seat 13, the outer wall of the moving seat 13 is provided with one end of a spring 14, and the other end of the spring 14 is provided on the inner wall of the slideway 12, the spring 14 is a coil spring, and elastic deformation is generated by stretching or extrusion, and the initial state is restored after the external force is removed, and when the moving seat 13 moves outward along the inner cavity of the slideway 12, the spring 14 can be compressed, and the front and rear corresponding The outer wall of the movable seat 13 is rotatably installed with the front and rear ends of the limiting roller 15, and the limiting roller 15 can roll freely. A first automatic power roller 16 is installed between the two fixed disks 11, and several limiting rollers 15 are located on the outside of the first automatic power roller 16. The first automatic power roller 16 can rotate by itself after being powered on, and then reel up the rubber sheet on its outer wall. The limiting roller 15 is not set at the position of the fixed disk 11 corresponding to the inner cavity of the working chamber 2, leaving space for disassembling and removing the first automatic power roller 16, and it can also ensure that it does not affect the entry of the rubber sheet.

[0027] The front and rear ends of the first automatic power roller 16 are respectively installed with mounting plates 17, and the outer wall of the mounting plate 17 is equidistantly installed with a plurality of bolts 18 along the circumferential direction. The bolts 18 penetrate the outer wall of the fixed plate 11, and the outer wall of the bolts 18 is screwed with nuts 19. Tightening the nuts 19 can achieve the fixed installation of the first automatic power roller 16, otherwise it can be disassembled.

[0028] The utility model also proposes the following solution: a plurality of feed guide roller groups 7 are respectively installed on the left and right sides of the bottom end of the inner cavity of the working cavity 2, wherein the feed guide roller group 7 includes two second automatic power rollers installed in the upper and lower directions. The rubber sheet passes through the gap between the two second automatic power rollers. When the second automatic power rollers are powered on and start to rotate, the rubber sheet can be fed and transported.

[0029] Regarding the problem that a small number of parts after punching will be misaligned under the action of external forces and cannot fall off by themselves, refer to Figure 1 , the present utility model proposes the following solution: A first bracket 8 is installed on the bottom end of the inner cavity of the working cavity 2 on the side opposite to the fixed disk 11. The top end of the first bracket 8 is rotatably installed with a cleaning roller 9. The first bracket 8 is arranged in an inverted "U" shape and will not block the conveying of the rubber sheet. In addition, the cleaning roller 9 is a structure in which a brush is installed on the outer wall of the third self-powered roller. When the cleaning roller 9 is powered on, it starts to rotate, and the rotation of the brush can sweep off the residual parts of the rubber sheet passing through its bottom end;

[0030] In addition, the present utility model further includes a PLC controller 20, which is installed on the outer wall of the equipment main body 1, and the PLC controller 20 is electrically connected to the hydraulic cylinder 3 and the feeding guide roller group 7 respectively. The PLC controller 20 can be used to control the telescopic speed of the hydraulic cylinder 3 and the feeding speed of the feeding guide roller group 7 respectively, so as to facilitate the cooperation of the two.

[0031] The working principle of a rubber product continuous punching device in this embodiment is as follows:

[0032] First, pass the whole rubber sheet through the feeding guide roller group 7 on the left side and make it located at the top of the fixed die 5. The PLC controller 20 is used to control the hydraulic cylinder 3 to drive the moving die 4 and the fixed die 5 to close for stamping, and control the feeding guide roller group 7 to realize the feeding of the rubber sheet, thereby realizing continuous punching. The cut parts fall through the channel 6 for collection;

[0033] When the rubber sheet passes through the feeding guide roller group 7 on the left side after being conveyed, start the cleaning roller 9 and use its rotation to sweep off the cutting residues at the top of the rubber sheet, which is convenient for centralized collection and does not require manual sorting one by one;

[0034] When the rubber sheet extends out of the inner cavity of the working cavity 2 and enters the inner side of the fixed disk 11, it will enter between the first self-powered roller 16 and the limiting roller 15 at the top. As the rubber sheet continues to be fed, with the rolling and limiting of several limiting rollers 15, the end of the rubber sheet will fit against the outer wall of the first self-powered roller 16, and the first self-powered roller 16 will wind up by its own rotation. As the winding progresses, the thickness of the rubber sheet on the outer wall of the first self-powered roller 16 gradually increases, which can drive each limiting roller 15 to drive the moving seat 13 to move outwards and compress the spring 14. Using the self-elastic force of the spring 14, the limiting roller 15 is driven to always press and limit the rubber sheet.

[0035] When the present utility model is in use, it can control the frequency of continuous punching and cutting according to the setting, and at the same time can automatically sweep off the parts remaining on the top of the rubber sheet main body, saving labor costs. At the same time, it can realize the automatic winding of the rubber sheet after punching, and can continuously limit the rubber sheet, and can fine-tune according to the winding thickness, with simple operation.

[0036] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A continuous punching device for rubber products, characterized in that: include: A device body (1), wherein a working chamber (2) is formed on the outer wall of the device body (1), a hydraulic cylinder (3) is installed at the top of the working chamber (2), and the output end of the hydraulic cylinder (3) extends into the inner cavity of the working chamber (2), the inner cavity of the working chamber (2) is equipped with a stamping die, a second bracket (10) is installed on the outer wall of the device body (1), and a winding portion is installed at the top of the second bracket (10); The winding section comprises: two symmetrically arranged fixed disks (11), the outer wall of the fixed disk (11) is provided with a plurality of slideways (12) along the circumferential direction, the inner cavity of the slideway (12) is slidably provided with a movable seat (13), the outer wall of the movable seat (13) is provided with one end of a spring (14), and the other end of the spring (14) is provided on the inner wall of the slideway (12), the outer walls of the front and rear two corresponding movable seats (13) are respectively rotatably provided with the front and rear ends of the limiting roller (15), a first automatic force roller (16) is arranged between the two fixed disks (11), and the plurality of the limiting rollers (15) are located on the outer side of the first automatic force roller (16).

2. A continuous punching device for rubber products according to claim 1, characterized in that: The front and rear ends of the first automatic roller (16) are respectively provided with mounting plates (17), and the outer wall of the mounting plate (17) is provided with a plurality of bolts (18) equidistantly installed along the circumferential direction, the bolts (18) penetrate the outer wall of the fixed plate (11), and the outer wall of the bolts (18) is screwed with nuts (19).

3. A continuous punching device for rubber products according to claim 1, characterized in that: A plurality of feed guide roller groups (7) are respectively installed on the left and right sides of the inner cavity bottom end of the working cavity (2).

4. A continuous punching device for rubber products according to claim 3, characterized in that: A first bracket (8) is installed on the side of the inner bottom of the working chamber (2) opposite to the fixed plate (11), and a cleaning roller (9) is rotatably installed on the top of the first bracket (8).

5. A continuous punching device for rubber products according to any one of claims 1 to 4, characterized in that: The stamping die comprises a movable die (4) and a fixed die (5), wherein the movable die (4) is mounted on the output end of the hydraulic cylinder (3), and the fixed die (5) is mounted on the bottom end of the inner cavity of the working cavity (2), and the movable die (4) and the fixed die (5) are positioned correspondingly.

6. A continuous punching device for rubber products according to claim 5, characterized in that: The inner cavity of the device body (1) is provided with a channel (6), one end of the channel (6) corresponds to the position of the fixed mold (5), and the other end of the channel (6) is connected to the outside.

7. A continuous punching device for rubber products according to claim 3, characterized in that: A PLC controller (20) is installed on the outer wall of the equipment body (1), and the PLC controller (20) is electrically connected to the hydraulic cylinder (3) and the feed guide roller group (7) respectively.

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