CN220349185U

CN220349185U - Cutting device for bag making machine

Info

Publication number: CN220349185U
Application number: CN202321580098.3U
Authority: CN
Inventors: 王飞
Original assignee: Chu King Precision Machinery Changzhou Co ltd
Current assignee: Chu King Precision Machinery Changzhou Co ltd
Priority date: 2023-06-20
Filing date: 2023-06-20
Publication date: 2024-01-16
Anticipated expiration: 2033-06-20

Abstract

The utility model discloses a cutting device for a bag making machine, which comprises a support frame, wherein a support plate is arranged on the upper side of the support frame, the support plate is suitable for moving in the direction close to and far away from the upper surface of the support frame, two ends of the support frame are rotatably connected with cutting wheels, the cutting wheels are suitable for rotating under external driving, a cutting belt is sleeved on the cutting wheels, one end of the outer wall of the lower side of the cutting belt is fixedly provided with a moving block, and the lower side of the moving block is fixedly provided with a cutting knife. Through the cutting knife left and right movement cutting, make the material need not bottom sprag, avoid the cutting knife to collide with other objects and damage. The utility model provides a cutting device for system bag machine reaches the effect of reducing cutting knife wearing and tearing.

Description

Cutting device for bag making machine

Technical Field

The utility model relates to the technical field of cutting devices, in particular to a cutting device for a bag making machine.

Background

The bag making machine is a machine for making various plastic bags or bags made of other materials, and the processing range of the bag making machine is various plastic bags or bags made of other materials with different sizes, thicknesses and specifications, and the plastic bags are generally taken as main products. In the manufacturing process of the packaging bag, the plastic film is required to be cut into a plurality of sections.

In the conventional cutting device, the plastic film is usually cut by a cutter that moves up and down. However, the cutter blade is likely to be damaged due to the continuous impact with the upper surface of the support plate during shearing. Meanwhile, the cutting mode leads to larger size of the cutting knife, and the cost and difficulty of replacing the cutting knife are larger.

It is therefore necessary to provide a cutting device for a bag machine that solves the above-mentioned problems.

Disclosure of Invention

Based on the above-mentioned problems existing in the prior art, an object of an embodiment of the present application is to: provides a cutting device for a bag making machine, which achieves the effect of reducing the abrasion of a cutting knife.

The technical scheme adopted for solving the technical problems is as follows: the utility model provides a cutting device for bag making machine, includes the support frame, the support frame upside is provided with the backup pad, the backup pad is suitable for being close to and keep away from the orientation of support frame upper surface and remove, the both ends of support frame are all rotated and are connected with the cutting wheel, and the cutting wheel is suitable for rotating under external drive, the cover is equipped with the cutting area on the cutting wheel, the one end that the cutting area is located the outer wall of downside is fixed with the movable block, the movable block downside is fixed with the cutting knife.

Further, a supporting bar is fixed on one side of the supporting plate and is positioned on the inner side of the cutting belt and used for supporting the moving block.

Further, the fixed block corresponding to the position of the movable block is fixed on the inner wall of the cutting belt, a limiting groove corresponding to the fixed block is formed in the lower side of the supporting bar, and the limiting groove is used for preventing the cutting knife from shaking by limiting the fixed block.

Further, a cutting groove corresponding to the position of the cutting belt is formed in the upper side of the supporting frame and used for avoiding the cutting knife.

Further, one side of the supporting plate is fixed with a clamping plate, and the clamping plate is used for clamping materials by matching with the upper surface of the supporting frame when the supporting plate descends.

The beneficial effects of the utility model are as follows:

1. through the cutting knife left and right movement cutting, make the material need not bottom sprag, avoid the cutting knife to collide with other objects and damage.

2. By the cutting mode, the required size of the cutting knife is reduced, and the cost of replacing the cutting knife is reduced;

3. the cutting knife can be conveniently replaced by moving the cutting knife to the exposed outer end of the cutting belt.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. In the drawings:

FIG. 1 is an overall schematic view of a driving device for a bag making machine according to the present application;

FIG. 2 is a schematic view of the lifting device of FIG. 1;

FIG. 3 is a schematic view of a cutting slot of the present application;

FIG. 4 is an overall schematic view of the cutting apparatus of FIG. 1;

FIG. 5 is an exploded view of the cleat of FIG. 1;

FIG. 6 is an exploded view of the moving block of FIG. 5;

wherein, each reference sign in the figure:

1. a support frame; 11. a protective shell; 12. a sliding sleeve; 13. cutting a groove; 14. clamping blocks;

2. a cutting device; 21. a support plate; 22. a support rod; 23. an elastic member; 24. a lifting plate; 25. a cutting wheel; 26. cutting the belt; 261. a through hole; 27. a moving block; 271. a fixed block; 272. a fixing hole; 273. positioning holes; 274. a bolt; 28. a cutting knife; 29. a clamping plate; 291. a support bar; 292. a limit groove;

3. lifting devices; 31. a first driver; 32. a rotating lever; 33. a drive sprocket; 34. a driven sprocket; 35. an eccentric wheel;

4. and a second driver.

Detailed Description

The present utility model will now be described in detail with reference to the accompanying drawings. The figure is a simplified schematic diagram illustrating the basic structure of the utility model only by way of illustration, and therefore it shows only the constitution related to the utility model.

As shown in fig. 1-6, the application provides a cutting device for a bag making machine, which comprises a support frame 1, wherein a protective shell 11 is fixed on the upper side of one end of the support frame 1, and the cutting device 2 is installed inside the protective shell 11.

As shown in fig. 1, 2 and 4, the cutting device 2 includes a support plate 21 located inside the protective housing 11, support rods 22 are fixed at two ends of the support plate 21, and an elastic member 23 is fixed between the upper end of the support rod 22 and the inner wall of the upper end of the protective housing 11, where the elastic member 23 is a spring in this embodiment.

As shown in fig. 1-3, sliding sleeves 12 corresponding to the positions of the supporting rods 22 are fixed on two sides of the supporting frame 1, the supporting rods 22 are slidably arranged in the sliding sleeves 12, the lower ends of the supporting rods 22 penetrate through the sliding sleeves 12, and arc-shaped lifting plates 24 are rotatably connected.

As shown in fig. 4 and 5, two ends of one side of the support rod 22 are rotatably connected with cutting wheels 25, and cutting belts 26 are sleeved on the two cutting wheels 25.

As shown in fig. 5 and 6, a moving block 27 is provided on the outer wall of the lower cutting belt 26, a fixed block 271 corresponding to the position of the moving block 27 is provided on the inner side of the cutting belt 26, a fixed hole 272 is provided on the side of the fixed block 271 near the moving block 27, a positioning hole 273 and a through hole 261 corresponding to the fixed hole 272 are provided on the moving block 27 and the cutting belt 26, a bolt 274 is provided in the positioning hole 273, and one end of the bolt 274 passes through the through hole 261 and is in threaded connection with the fixed hole 272 for fixing the moving block 27 and the cutting belt 26.

As shown in fig. 4 to 6, a cutter 28 is fixed to the lower side of the moving block 27, and the cutting surface of the cutter 28 is inclined. A clamping plate 29 is fixed to one side of the support plate 21, and the dicing tape 26 is located between the support plate 21 and the clamping plate 29. A supporting bar 291 is fixed between the supporting plate 21 and the clamping plate 29, the supporting bar 291 is positioned at the inner side of the cutting band 26, and a limiting groove 292 corresponding to the fixing block 271 is provided at the lower side of the supporting bar 291.

As shown in fig. 3, the support frame 1 is fixed with a cutting groove 13 corresponding to the position of the cutting belt 26 and a clamping block 14 corresponding to the position of the clamping plate 29.

As shown in fig. 2, a lifting device 3 is disposed in the support frame 1, the lifting device 3 includes a first driver 31 fixed in the support frame 1 and a rotating rod 32 rotatably connected in the support frame 1, in this embodiment, the first driver 31 is a motor, an output shaft of the first driver 31 is fixed with a driving sprocket 33, a driven sprocket 34 is fixed on the rotating rod 32, and chains are sleeved on the driving sprocket 33 and the driven sprocket 34. The two ends of the rotating rod 32 extend out of the supporting frame 1 and are respectively fixed with an eccentric wheel 35, the axis of the eccentric wheel 35 and the axis of the rotating rod 32 are not in the same straight line, and the eccentric wheel 35 is attached to the lifting plate 24.

The first driver 31 can drive the rotating rod 32 to rotate through the driving sprocket 33, the driven sprocket 34 and the chain, and as the axis of the eccentric wheel 35 is not in the same line with the axis of the rotating rod 32, the outer wall of the eccentric wheel 35 gradually protrudes upwards relative to the rotating rod 32 in the process of rotating the axis of the eccentric wheel 35 from the lower part to the upper part of the axis of the rotating rod 32, so that the lifting plate 24 overcomes the elasticity of the elastic piece 23 and pushes the supporting rod 22 to lift;

in the process that the axis of the eccentric wheel 35 rotates from the upper part to the lower part of the axis of the rotating rod 32, the outer wall of the eccentric wheel 35 gradually and downwards sinks relative to the rotating rod 32, and the supporting rod 22 is driven to descend by the elastic force of the elastic piece 23 and the whole gravity of the cutting device 2.

In summary, the eccentric wheel 35 drives the support rod 22 to rise or fall when rotating. Because the support rod 22 is fixed with the support plate 21, the cutting device 2 will rise or fall along with the support rod 22, i.e. the eccentric wheel 35 will drive the cutting device 2 to rise or fall when rotating.

A second driver 4 is provided on one side of the support 1, and in this embodiment, the second driver 4 is a motor. The output shaft of the second driver 4 is connected to the rotation shaft of one cutting wheel 25, and the second driver 4 is used for driving the cutting wheel 25 to rotate.

In the initial state, the first driver 31 and the second driver 4 are in a stop state, the cutting knife 28 is positioned at one end of the outer wall of the lower side of the cutting belt 26, the axis of the eccentric wheel 35 is positioned above the axis of the rotating rod 32, the cutting device 2 is integrally lifted to the highest position, the clamping plate 29, the supporting plate 21 and the cutting belt 26 are far away from the surface of the supporting plate 21, and accordingly larger gaps are reserved between the clamping plate 29 and the clamping block 14, between the supporting plate 21 and the upper surface of the supporting frame 1 and between the cutting belt 26 and the cutting groove 13. The plastic film is conveniently conveyed from the gap by an external conveying device.

When the plastic film is conveyed to the length required to be cut, the plastic film is stopped, the first driver 31 is started, the axis of the eccentric wheel 35 is stopped after being rotated from the upper side to the lower side of the axis of the rotating rod 32, and when the axis of the eccentric wheel 35 is positioned below the axis of the rotating rod 32, the cutting device 2 is wholly moved to the lowest position, and at the moment, the clamping plate 29 and the clamping block 14 clamp the plastic film, so that the effect of fixing the plastic film is achieved.

After the cutting device 2 integrally moves to the lowest position, the second driver 4 is started to drive the cutting wheel 25 to rotate and is matched with the other cutting wheel 25 to drive the cutting belt 26 to move, so that the cutting belt 26 drives the cutting knife 28 to move from one end to the other end of the lower side of the cutting belt 26, and then the second driver 4 is stopped.

By avoiding the cutting knife 28 through the cutting groove 13, when the cutting device 2 integrally moves to the lowest position, the cutting knife 28 is inserted into the cutting groove 13, and then the cutting edge surface of the cutting knife 28 can contact and cut the plastic film so as to segment the plastic film.

In the moving process of the cutter 28, the cutting edge surface of the cutter 28 is inclined, so that the cutter 28 can move upwards while cutting is facilitated. The limiting groove 292 will prop against the fixing block 271, so as to prevent the cutting knife 28 from separating from the plastic film, which results in no cutting. By means of the upward movement trend of the cutter 28, the fixed block 271 is kept in the limit groove 292, and the two sides of the fixed block 271 are limited by the side walls of the limit groove 292, so that the movable block 27 can be prevented from shaking, and the cutter 28 can be kept stable during movement, and the cutting smoothness is ensured.

After the plastic film is cut, the first driver 31 is started again, the axis of the eccentric wheel 35 is rotated from the lower part to the upper part of the axis of the rotating rod 32, and then the cutting device 2 is lifted and reset.

And after waiting for the plastic film to be conveyed to the plastic film with the length to be cut again, repeating the steps to achieve the effect of continuous cutting.

The cutting method avoids the contact between the cutter 28 and the object other than the plastic film, and can reduce the abrasion of the cutter 28. At the same time, the cutter 28 required in this way is smaller in size, which can save the cost of replacing the cutter 28.

When the cutter 28 needs to be replaced, the cutter 28 can be moved to the exposed outer end of the cutting belt 26, so that the replacement is convenient.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. The utility model provides a cutting device for system bag machine which characterized in that: including support frame (1), support frame (1) upside is provided with backup pad (21), backup pad (21) are suitable for being close to and keep away from the direction of support frame (1) upper surface and remove, the both ends of support frame (1) all rotate and are connected with cutting wheel (25), and cutting wheel (25) are suitable for rotatory under external drive, the cover is equipped with cutting band (26) on cutting wheel (25), the one end that cutting band (26) are located the outer wall of downside is fixed with movable block (27), movable block (27) downside is fixed with cutting knife (28).

2. The cutting device for a bag machine according to claim 1, wherein: a supporting bar (291) is fixed on one side of the supporting plate (21), and the supporting bar (291) is positioned on the inner side of the cutting belt (26) and is used for supporting the moving block (27).

3. The cutting device for a bag machine according to claim 2, wherein: fixed block (271) corresponding to the position of the movable block (27) is fixed on the inner wall of the cutting belt (26), a limiting groove (292) corresponding to the fixed block (271) is formed in the lower side of the supporting bar (291), and the limiting groove (292) is used for preventing the cutting knife (28) from shaking by limiting the fixed block (271).

4. The cutting device for a bag machine according to claim 1, wherein: the upper side of the supporting frame (1) is provided with a cutting groove (13) corresponding to the position of the cutting belt (26) and used for avoiding a cutting knife (28).

5. The cutting device for a bag machine according to claim 1, wherein: one side of the supporting plate (21) is fixed with a clamping plate (29) which is used for clamping materials by matching with the upper surface of the supporting frame (1) when the supporting plate (21) descends.