Perforating device for bag making machine

Abstract

The utility model discloses a perforating device for a bag making machine, which relates to the technical field of perforating machines for bag making machines, and comprises a bag making machine body, a positioning mechanism is arranged above the bag making machine body, a replacement mechanism is arranged above the positioning mechanism, the positioning mechanism comprises a positioning plate, a fixing plate and a friction tooth block, and the friction tooth block is arranged on the fixing plate. The positioning plate is arranged above the bag making machine body, the fixing plates are arranged above the positioning plate, the number of the fixing plates is two, and the friction tooth blocks are fixedly installed at the bottoms of the fixing plates. By pulling the pulling plate to enable the fixing plate to press the spring, the packaging bag is placed on the positioning plate, the pulling plate is loosened, the friction tooth block is tightly attached to the packaging bag through the elasticity of the pressure spring, the packaging bag is fixed, then the motor is started to enable the threaded rod to drive the positioning block to move left and right, and the positioning block drives the positioning plate and the packaging bag above to move left and right. And the punching position of the packaging bag is adjusted, so that the packaging bag can be conveniently fixed and adjusted.

Description

Technical Field

[0001] The utility model relates to the technical field of hole punching machines for bag making machines, in particular to a hole punching device for bag making machines. Background Art

[0002] A bag making machine is a machine that makes various plastic packaging bags or other material packaging bags. Its processing range is packaging bags of various sizes, thicknesses and specifications of plastics or other materials. Generally speaking, plastic packaging bags are the main products. A punching machine is a punching mold that assists the bag making machine. The bag making machine computer gives a signal that is transmitted to the solenoid valve and then works as a pneumatic mold. Its structure is similar to a cold punching mold.

[0003] For example, the Chinese patent with publication number CN207310069U discloses a punching device for a bag making machine, including a punching plate and a locking screw, a punch is fixed at the lower end of the punching plate, the middle position of the upper end of the punching plate is connected to the lower end of the cylinder through a piston rod passing through a support plate, a guide rod is installed on the side of the upper end of the punching plate, a sliding support rod is provided at the lower end of the support plate, and the sliding support rod is connected to the sliding groove on the upper die seat through a sliding block, a lower die seat is fixed below the upper die seat, and a material passing groove is reserved between the upper die seat and the lower die seat, the lower end of the locking screw is connected to the second threaded joint fixed to the side of the upper die seat, and the upper end of the locking screw is connected to the first threaded joint fixed to the side of the support plate, and punching holes are reserved at the same position on the upper die seat and the lower die seat. The punching device for the bag making machine has high punching efficiency and good stability of the punching operation, and the position of the punching plate can be accurately adjusted, which increases the range of the punching operation.

[0004] However, the above device still has the following shortcomings: the device is not convenient for fixing the packaging bag, the packaging bag is easily offset, resulting in unsatisfactory punching effect, and the punch of the device is fixed on the punching plate. When holes of different shapes or sizes need to be punched, the original punch is not convenient to replace and is inconvenient to use. Utility Model Content

[0005] The utility model provides a punching device for a bag making machine to solve the problems raised in the above background technology.

[0006] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0007] A punching device for a bag making machine comprises a bag making machine body, a positioning mechanism is arranged above the bag making machine body, a replacement mechanism is arranged above the positioning mechanism, the positioning mechanism comprises a positioning plate, a fixing plate and a friction tooth block, the positioning plate is arranged above the bag making machine body, the fixing plate is arranged above the positioning plate, there are two fixing plates, the friction tooth block is fixedly mounted on the bottom of the fixing plate, the replacement mechanism comprises a bracket, a punch and a holding block, the bracket is fixedly mounted on the top of the bag making machine body, the punch is arranged below the bracket, and the holding blocks are arranged on both sides of the punch.

[0008] A further improvement of the technical solution of the utility model is that a pull rod is fixedly installed on the top of the fixed plate, a pull plate is fixedly installed on the top of the pull rod, an L-shaped plate is movably installed on the outer wall of the pull rod, the bottom of the L-shaped plate is fixedly connected to the top of the positioning plate, a compression spring is fixedly installed on the top of the fixed plate, and the top of the compression spring is fixedly connected to one side outer wall of the L-shaped plate.

[0009] A further improvement of the technical solution of the utility model lies in that: a guide rod is movably installed on the inner wall of the positioning plate, a vertical plate is fixedly installed on one end of the guide rod, the bottom of the vertical plate is fixedly connected to the top of the bag making machine body, a threaded rod is movably installed on the inner wall of the vertical plate, a positioning block is movably installed on the outer wall of the threaded rod, the top of the positioning block is fixedly connected to the bottom of the positioning plate, a motor is fixedly installed on one end of the threaded rod, and one side outer wall of the motor is fixedly connected to one side outer wall of the vertical plate.

[0010] A further improvement of the technical solution of the utility model is that a cylinder is fixedly installed on the inner wall of one side of the bracket, a lower pressure frame is fixedly installed on the output shaft of the cylinder, a limiting rod is movably installed on the top of the lower pressure frame, a limiting block is movably installed on one end of the limiting rod, a sliding rod is movably installed on the inner wall of the limiting block, and one end of the sliding rod is fixedly connected to the inner wall of one side of the bracket.

[0011] A further improvement of the technical solution of the utility model is that a pull rod is fixedly installed on the outer wall of one side of the holding block, and the outer wall of the pull rod is movably connected to the inner wall of the lower pressure frame; receiving recessed blocks are fixedly installed on the outer walls of both sides of the punch, and the inner wall of the receiving recessed blocks is movably connected to the outer wall of the holding block; a bidirectional threaded rod is movably installed inside the receiving recessed blocks.

[0012] A further improvement of the technical solution of the utility model is that: a clamping plate is fixedly installed on the outer walls of both sides of the clamping block, a folding clamping strip is movably installed on the inner wall of the clamping plate, the inner wall of the folding clamping strip is movably connected to the outer wall of the bidirectional threaded rod, and the outer wall of the folding clamping strip is movably connected to the inner wall of the receiving recessed block.

[0013] Due to the adoption of the above technical solution, the utility model has achieved the following technical progress compared with the prior art:

[0014] The utility model provides a punching device for a bag making machine. Through the interaction of a positioning plate, a fixed plate, a friction tooth block, a pull rod, a compression spring, a positioning block and a threaded rod, the pulling plate is pulled to cause the fixed plate compression spring to place the packaging bag on the positioning plate. The pulling plate is released, and the elastic force of the compression spring causes the friction tooth block to cling to the packaging bag to fix the packaging bag. Then, a motor is started to cause the threaded rod to drive the positioning block to move left and right, and the positioning block drives the positioning plate and the upper packaging bag to move left and right, so that the punching position of the packaging bag can be adjusted. The utility model has the advantage of convenient fixing and adjustment of the packaging bag.

[0015] The utility model provides a punching device for a bag making machine. Through the interaction of a bracket, a punch, a holding block, a cylinder, a lower pressure frame, a pull strip, a receiving concave block, a folding clamping strip and a clamping plate, the lower pressure frame drives the punch to move downward by starting the cylinder to punch holes in the packaging bag. When the punch needs to be replaced, the bidirectional threaded rod is rotated to move the folding clamping strip away from the clamping plate, the fixation of the holding block is cancelled, and then the pull strip is pulled to move the clamping block out of the receiving concave block, so that the punch on the receiving concave block is separated from the lower pressure frame, thereby disassembling the punch, which has the advantage of convenient replacement of the punch. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 It is a cross-sectional schematic diagram of the structural positioning mechanism of the utility model;

[0018] Figure 3 It is a cross-sectional schematic diagram of the structure replacement mechanism of the utility model;

[0019] Figure 4 It is an enlarged schematic diagram of the structure A part of the utility model.

[0020] In the figure: 1. bag making machine body; 2. positioning mechanism; 21. positioning plate; 22. fixing plate; 23. friction tooth block; 24. pull rod; 25. compression spring; 26. positioning block; 27. threaded rod; 3. replacement mechanism; 31. bracket; 32. punch; 33. clamping block; 34. cylinder; 35. lower pressure frame; 36. pull strip; 37. receiving concave block; 38. folding clamping strip; 39. clamping plate. DETAILED DESCRIPTION

[0021] The present invention is further described in detail below in conjunction with the embodiments: Example 1

[0022] like Figure 1-4As shown, the utility model provides a punching device for a bag making machine, including a bag making machine body 1, a positioning mechanism 2 is arranged above the bag making machine body 1, a replacement mechanism 3 is arranged above the positioning mechanism 2, the positioning mechanism 2 includes a positioning plate 21, a fixing plate 22 and a friction tooth block 23, the positioning plate 21 is arranged above the bag making machine body 1, the fixing plate 22 is arranged above the positioning plate 21, there are two fixing plates 22, the friction tooth block 23 is fixedly installed at the bottom of the fixing plate 22, the replacement mechanism 3 includes a bracket 31, The punch 32 and the holding block 33, the bracket 31 are fixedly installed on the top of the bag making machine body 1, the punch 32 is arranged below the bracket 31, the holding blocks 33 are arranged on both sides of the punch 32, the top of the fixed plate 22 is fixedly installed with a pull rod 24, the top of the pull rod 24 is fixedly installed with a pull plate, an L-shaped plate is movably installed on the outer wall of the pull rod 24, the bottom of the L-shaped plate is fixedly connected to the top of the positioning plate 21, the top of the fixed plate 22 is fixedly installed with a compression spring 25, and the top of the compression spring 25 is fixedly connected to one side outer wall of the L-shaped plate.

[0023] In this embodiment, the pull plate is pulled to drive the pull rod 24 to move upward, and the pull rod 24 drives the fixed plate 22 to move upward to squeeze the compression spring 25, and the packaging bag is placed on the positioning plate 21. The pull plate is released, and the elastic force of the compression spring 25 causes the fixed plate 22 to drive the friction tooth block 23 to fit closely to the packaging bag, thereby fixing the packaging bag and preventing the packaging bag from shifting when punching. Example 2

[0024] like Figure 1-4 As shown, on the basis of Example 1, the utility model provides a technical solution: preferably, a guide rod is movably installed on the inner wall of the positioning plate 21, a vertical plate is fixedly installed on one end of the guide rod, the bottom of the vertical plate is fixedly connected to the top of the bag making machine body 1, a threaded rod 27 is movably installed on the inner wall of the vertical plate, a positioning block 26 is movably installed on the outer wall of the threaded rod 27, the top of the positioning block 26 is fixedly connected to the bottom of the positioning plate 21, a motor is fixedly installed on one end of the threaded rod 27, and one side outer wall of the motor is fixedly connected to one side outer wall of the vertical plate.

[0025] In this embodiment, the threaded rod 27 is driven to rotate by starting the motor, the threaded rod 27 drives the positioning block 26 to move left and right, and the positioning block 26 drives the positioning plate 21 and the packaging bag above to move left and right to adjust the punching position of the packaging bag. Example 3

[0026] like Figure 1-4As shown, on the basis of Example 1, the utility model provides a technical solution: preferably, a cylinder 34 is fixedly installed on the inner wall of one side of the bracket 31, a lower pressure frame 35 is fixedly installed on the output shaft of the cylinder 34, a limit rod is movably installed on the top of the lower pressure frame 35, one end of the limit rod is movably installed on the limit block, a sliding rod is movably installed on the inner wall of the limit block, one end of the sliding rod is fixedly connected to the inner wall of one side of the bracket 31, a pull rod 36 is fixedly installed on the outer wall of one side of the clamping block 33, and the outer wall of the pull rod 36 is connected to the lower pressure frame 35. The inner wall of the pressing frame 35 is movably connected, and receiving recessed blocks 37 are fixedly installed on the outer walls on both sides of the punch 32. The inner wall of the receiving recessed block 37 is movably connected to the outer wall of the holding block 33. A two-way threaded rod is movably installed inside the receiving recessed block 37. A clamping plate 39 is fixedly installed on the outer walls on both sides of the holding block 33. A folding clip 38 is movably installed on the inner wall of the clamping plate 39. The inner wall of the folding clip 38 is movably connected to the outer wall of the two-way threaded rod. The outer wall of the folding clip 38 is movably connected to the inner wall of the receiving recessed block 37.

[0027] In this embodiment, the lower pressure frame 35 is driven downward by starting the cylinder 34, and the lower pressure frame 35 drives the punch 32 to move downward to punch the packaging bag. The set limit rod and limit block can assist in supporting the lower pressure frame 35. When the punch 32 needs to be replaced, the two-way threaded rod is rotated to drive the two folding clips 38 to move, and the folding clips 38 are away from the card plate 39, canceling the fixation of the holding block 33, and then pulling the pull bar 36 to move the holding block 33 out of the receiving recessed block 37, separating the punch 32 on the receiving recessed block 37 from the lower pressure frame 35, thereby disassembling the punch 32.

[0028] The working principle of the punching device for the bag making machine is described in detail below.

[0029] like Figure 1-4As shown, when it is necessary to punch holes in the packaging bag, the pull plate is pulled to drive the pull rod 24 to move upward, and the pull rod 24 drives the fixed plate 22 to move upward to squeeze the compression spring 25, and the packaging bag is placed on the positioning plate 21, and the pull plate is released. The elastic force of the compression spring 25 causes the fixed plate 22 to drive the friction tooth block 23 to be close to the packaging bag, thereby fixing the packaging bag to prevent the packaging bag from shifting when punching holes. Then, the threaded rod 27 is driven to rotate by the starting motor, and the threaded rod 27 drives the positioning block 26 to move left and right. The positioning block 26 drives the positioning plate 21 and the packaging bag above to move left and right, and the punching position of the packaging bag is adjusted, which has the advantage of conveniently fixing and adjusting the packaging bag. When the packaging bag is adjusted, the cylinder 34 is started to drive the lower pressure frame 35 to move downward, and the lower pressure frame 35 drives the punch 32 to move downward to punch the packaging bag. The set limit rod and limit block can assist in supporting the lower pressure frame 35. When the punch 32 needs to be replaced, the two-way threaded rod is rotated to drive the two folding clips 38 to move, and the folding clips 38 are away from the card plate 39, canceling the fixation of the holding block 33, and then pulling the pull bar 36 to move the holding block 33 out of the receiving recessed block 37, separating the punch 32 on the receiving recessed block 37 from the lower pressure frame 35, thereby disassembling the punch 32, which has the advantage of convenient replacement of the punch 32.

[0030] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not deviate from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A punching device for a bag making machine, comprising a bag making machine body (1), characterized in that: A positioning mechanism (2) is arranged above the bag making machine body (1), and a replacement mechanism (3) is arranged above the positioning mechanism (2). The positioning mechanism (2) comprises a positioning plate (21), a fixing plate (22) and a friction tooth block (23). The positioning plate (21) is arranged above the bag making machine body (1), and the fixing plate (22) is arranged above the positioning plate (21). There are two fixing plates (22). The friction tooth block (23) is fixedly mounted on the bottom of the fixing plate (22). The replacement mechanism (3) comprises a bracket (31), a punch (32) and a holding block (33). The bracket (31) is fixedly mounted on the top of the bag making machine body (1), the punch (32) is arranged below the bracket (31), and the holding blocks (33) are arranged on both sides of the punch (32).

2. A punching device for a bag making machine according to claim 1, characterized in that: A pull rod (24) is fixedly mounted on the top of the fixed plate (22), a pull plate is fixedly mounted on the top of the pull rod (24), an L-shaped plate is movably mounted on the outer wall of the pull rod (24), the bottom of the L-shaped plate is fixedly connected to the top of the positioning plate (21), a compression spring (25) is fixedly mounted on the top of the fixed plate (22), and the top of the compression spring (25) is fixedly connected to the outer wall of one side of the L-shaped plate.

3. A punching device for a bag making machine according to claim 1, characterized in that: A guide rod is movably mounted on the inner wall of the positioning plate (21), a vertical plate is fixedly mounted on one end of the guide rod, the bottom of the vertical plate is fixedly connected to the top of the bag making machine body (1), a threaded rod (27) is movably mounted on the inner wall of the vertical plate, a positioning block (26) is movably mounted on the outer wall of the threaded rod (27), the top of the positioning block (26) is fixedly connected to the bottom of the positioning plate (21), a motor is fixedly mounted on one end of the threaded rod (27), and one side outer wall of the motor is fixedly connected to one side outer wall of the vertical plate.

4. A punching device for a bag making machine according to claim 1, characterized in that: A cylinder (34) is fixedly mounted on an inner wall of one side of the bracket (31); a lower pressure frame (35) is fixedly mounted on the output shaft of the cylinder (34); a limit rod is movably mounted on the top of the lower pressure frame (35); a limit block is movably mounted on one end of the limit rod; a slide rod is movably mounted on the inner wall of the limit block; and one end of the slide rod is fixedly connected to an inner wall of one side of the bracket (31).

5. A punching device for a bag making machine according to claim 4, characterized in that: A pull rod (36) is fixedly mounted on the outer wall of one side of the holding block (33), and the outer wall of the pull rod (36) is movably connected to the inner wall of the lower pressing frame (35). Receiving recessed blocks (37) are fixedly mounted on the outer walls of both sides of the punch (32), and the inner wall of the receiving recessed blocks (37) is movably connected to the outer wall of the holding block (33). A bidirectional threaded rod is movably mounted inside the receiving recessed blocks (37).

6. A punching device for a bag making machine according to claim 5, characterized in that: A clamping plate (39) is fixedly mounted on both side outer walls of the clamping block (33); a folding clamping strip (38) is movably mounted on the inner wall of the clamping plate (39); the inner wall of the folding clamping strip (38) is movably connected to the outer wall of the bidirectional threaded rod; and the outer wall of the folding clamping strip (38) is movably connected to the inner wall of the receiving recessed block (37).

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