Adjustable angle cutting mechanism

Abstract

The utility model discloses an adjustable angle cutting mechanism which comprises a supporting cover, a lead screw, a shell and a support, a supporting plate is arranged at the bottom of the support, the shell is fixed to the upper end of the support, the lead screw is connected to the side portion of the inner wall of the shell through a bearing, a motor is installed at the upper end of the inner wall of the shell through a bolt, and the motor is connected to the shell through a bearing. The output end of the motor is fixedly connected with the driving end of the lead screw, the lead screw is in threaded fit with a threaded seat, the lower end of the threaded seat is connected with a sliding block, a sliding groove is formed in the lower portion of the shell, the sliding block is in sliding connection with the sliding groove, and the supporting cover is arranged on the lower portion of the shell. A connecting rod is hinged between the lower end of the sliding block and the upper end of the supporting cover, the side portion of the support is slidably connected with a connecting block, and one end of the connecting block is fixedly connected with the side portion of the supporting cover. The corner cutting device is good in corner cutting effect and good in stability.

Description

Technical Field

[0001] The utility model relates to the technical field of square-bottom plastic bag manufacturing, in particular to an adjustable corner cutting mechanism. Background Art

[0002] Bag making machines are used to make high and low pressure vest bags (convenient bags for markets and supermarkets), flat bags (garment bags, shoe bags), disposable medical packaging bags, sanitary bags, color printed bags and other various film bags. Bag making machines are also needed to make square bottom plastic bags. However, square bottom plastic bags need to be trimmed during the production process, so a trimming mechanism is used.

[0003] The corner cutting mechanism of the square bottom plastic bag making machine disclosed in the application number 202020433854.x includes a base, a rotating wheel and a limit block, a connecting plate is fixed below the threaded sleeve, and a guide rod is arranged inside the connecting plate, a sleeve rod is fixed below the connecting plate, and a fixing bolt is installed below the sleeve rod, the limit block is located inside the sleeve rod, and a telescopic rod is fixed in front of the limit block, a fixed sleeve is connected below the telescopic rod, and a spring is arranged inside the fixed sleeve, a connecting block is fixed below the spring, and a connecting rod is arranged below the connecting block, a threaded block is installed inside the connecting rod, and a cutter is connected below the threaded block; however, when it is actually used, there is still a problem of poor functionality, a spring is connected between the connecting block and the fixed sleeve, and the spring is easily skewed when squeezed, which easily causes the cutter to be skewed, affecting the corner cutting effect, and when the connecting plate is raised or lowered, only one end is supported by the threaded rod, the stability is not good, and the service life is easily affected. Utility Model Content

[0004] The purpose of the utility model is to provide an adjustable angle cutting mechanism to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an adjustable angle cutting mechanism, comprising a support cover, a screw rod, a shell and a bracket, a support plate is arranged at the bottom of the bracket, the shell is fixed to the upper end of the bracket, the screw rod is connected to the side of the inner wall of the shell through a bearing, a motor is installed at the upper end of the inner wall of the shell through bolts, and the output end of the motor is fixedly connected to the driving end of the screw rod, a threaded seat is matched with a thread on the screw rod, and a slider is connected to the lower end of the threaded seat, a slide groove is arranged at the lower part of the shell, and the slider is slidably connected to the slide groove.

[0006] Preferably, the support cover is arranged at the lower part of the shell, and a connecting rod is hinged between the lower end of the sliding block and the upper end of the support cover.

[0007] Preferably, a connecting block is slidably connected to the side of the bracket, and one end of the connecting block is fixedly connected to the side of the support cover.

[0008] Preferably, an electric push rod is fixed to the side of the inner wall of the support cover, and a connecting seat is fixed to one end of the electric push rod, and a guide block is connected to the upper end of the connecting seat.

[0009] Preferably, a guide rail is provided at the upper end of the inner wall of the support cover, and the guide rail is slidably connected to the guide block.

[0010] Preferably, the lower end of the support cover is slidably connected to a cylinder, and the interior of the cylinder is slidably connected to a limiting block.

[0011] Preferably, a slide bar is connected to the lower end of the limit block, a cutter is fixed to the lower end of the slide bar, and a spring is connected between the upper end of the cutter and the lower end of the cylinder.

[0012] Compared with the prior art, the utility model has the following beneficial effects: good corner cutting effect and good stability;

[0013] (1) When the cutter touches the plastic bag, the cutter drives the slide bar to move upward and squeezes the spring at the same time. Since the spring is elastic, it forms a buffer protection for the cutter to prevent the cutter from being directly pressed down and damaged. The limit block slides along the inner wall of the cylinder to prevent the limit block from tilting and affecting the cutting effect. The cutting effect is good.

[0014] (2) The bracket limits the connection block through the side strip groove, which is conducive to the stable lifting and lowering of the support cover and avoids the displacement of the support cover. The electric push rod is extended and retracted to drive the connection seat to move, thereby driving the cutter to move. Therefore, the cutter position can be adjusted according to the size of the plastic bag. At the same time, the support cover limits the guide block through the guide rail, which is conducive to the stable movement of the connection seat and avoids the electric push rod from tilting down and deforming, and has good stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the main cross-sectional structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the main structure of the utility model;

[0017] Figure 3 It is a schematic diagram of the connecting seat and body structure of the utility model;

[0018] Figure 4 This is a schematic diagram of the threaded seat and slider structure of the utility model;

[0019] In the figure: 1. motor; 2. threaded seat; 3. screw rod; 4. housing; 5. connecting rod; 6. electric push rod; 7. support cover; 8. support plate; 9. bracket; 10. connecting block; 11. guide block; 12. guide rail; 13. cylinder; 14. slide rod; 15. cutter; 16. spring; 17. limit block; 18. connecting seat; 19. slide groove; 20. slider. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-4 The utility model provides an embodiment: an adjustable angle cutting mechanism, including a support cover 7, a screw rod 3, a shell 4 and a bracket 9, a support plate 8 is arranged at the bottom of the bracket 9, the shell 4 is fixed to the upper end of the bracket 9, the screw rod 3 is connected to the side of the inner wall of the shell 4 through a bearing, a motor 1 is installed on the upper end of the inner wall of the shell 4 through bolts, and the output end of the motor 1 is fixedly connected to the driving end of the screw rod 3, a threaded seat 2 is matched with the thread on the screw rod 3, and a slider 20 is connected to the lower end of the threaded seat 2.

[0022] When in use, the motor 1 drives the screw rod 3 to rotate, thereby driving the threaded seat 2 to move along the screw rod 3 in the horizontal direction, and driving the slider 20 to move together;

[0023] A slide groove 19 is provided at the lower portion of the housing 4 , and the slider 20 is slidably connected to the slide groove 19 .

[0024] When in use, the housing 4 limits the slider 20 through the slide groove 19, which is conducive to the stable movement of the slider 20;

[0025] The support cover 7 is arranged at the lower part of the housing 4 , and a connecting rod 5 is hinged between the lower end of the slider 20 and the upper end of the support cover 7 .

[0026] When in use, the slider 20 drives the connecting rod 5 to change its tilt angle, thereby driving the support cover 7 to rise and fall, which is beneficial to the opening and closing of the corner cutting work;

[0027] A connecting block 10 is slidably connected to the side of the bracket 9 , and one end of the connecting block 10 is fixedly connected to the side of the support cover 7 .

[0028] When in use, the bracket 9 limits the connection block 10 through the strip groove on the side, which is conducive to the stable lifting of the support cover 7 and avoids the displacement of the support cover 7;

[0029] An electric push rod 6 is fixed to the side of the inner wall of the support cover 7 , and a connecting seat 18 is fixed to one end of the electric push rod 6 , and a guide block 11 is connected to the upper end of the connecting seat 18 .

[0030] When in use, the electric push rod 6 is extended and retracted, driving the connecting seat 18 to move, thereby driving the cutter 15 to move, thereby adjusting the position of the cutter 15 according to the size of the plastic bag;

[0031] A guide rail 12 is disposed at the upper end of the inner wall of the support cover 7 , and the guide rail 12 is slidably connected to the guide block 11 .

[0032] When in use, the support cover 7 limits the guide block 11 through the guide rail 12, which is conducive to the stable movement of the connecting seat 18 and prevents the electric push rod 6 from tilting down and deforming;

[0033] The lower end of the limit block 17 is connected to the slide bar 14 , and the lower end of the slide bar 14 is fixed with a cutter 15 . A spring 16 is connected between the upper end of the cutter 15 and the lower end of the cylinder 13 .

[0034] When the cutter 15 touches the plastic bag, the cutter 15 drives the slide bar 14 to move upward, and compresses the spring 16. Since the spring 16 is elastic, it forms a buffer protection for the cutter 15 to prevent the cutter 15 from being directly pressed down and damaged.

[0035] The lower end of the support cover 7 is slidably connected to a cylinder 13 , and the interior of the cylinder 13 is slidably connected to a limiting block 17 .

[0036] When in use, the limit block 17 slides along the inner wall of the cylinder 13 to prevent the limit block 17 from tilting and affecting the cutting effect;

[0037] When the embodiment of the present application is in use: first, driven by the motor 1, the screw rod 3 is driven to rotate, thereby driving the threaded seat 2 to move along the screw rod 3 in the horizontal direction, and driving the slider 20 to move at the same time. The housing 4 limits the slider 20 through the slide groove 19, which is conducive to the stable movement of the slider 20. The slider 20 drives the connecting rod 5 to change the inclination angle, thereby driving the support cover 7 to rise and fall, which is conducive to the opening and closing of the corner cutting work. The bracket 9 limits the connecting block 10 through the side strip groove, which is conducive to the stable lifting and lowering of the support cover 7 and avoids the displacement of the support cover 7. The electric push rod 6 is retracted to drive the connecting seat 18 to move, thereby driving The cutter 15 moves, thereby, the position of the cutter 15 can be adjusted according to the size of the plastic bag. At the same time, the support cover 7 limits the guide block 11 through the guide rail 12, which is conducive to the stable movement of the connecting seat 18 and prevents the electric push rod 6 from tilting downward and deforming. In addition, when the cutter 15 touches the plastic bag, the cutter 15 drives the slide bar 14 to move upward and squeezes the spring 16 at the same time. Since the spring 16 is elastic, a buffer protection is formed for the cutter 15 to prevent the cutter 15 from being directly pressed down and damaged. The limit block 17 slides along the inner wall of the cylinder 13 to prevent the limit block 17 from being skewed. In summary, the mechanism has a good corner cutting effect and good stability.

Claims

1. An adjustable angle cutting mechanism, characterized in that: The invention comprises a support cover (7), a screw rod (3), a shell (4) and a bracket (9), wherein a support plate (8) is arranged at the bottom of the bracket (9), the shell (4) is fixed to the upper end of the bracket (9), the screw rod (3) is connected to the side of the inner wall of the shell (4) through a bearing, a motor (1) is installed at the upper end of the inner wall of the shell (4) through bolts, and the output end of the motor (1) is fixedly connected to the driving end of the screw rod (3), a threaded seat (2) is threadedly matched on the screw rod (3), and a slider (20) is connected to the lower end of the threaded seat (2), and a slide groove (19) is arranged at the lower part of the shell (4), and the slider (20) is slidably connected to the slide groove (19).

2. The adjustable angle cutting mechanism according to claim 1, characterized in that: The support cover (7) is arranged at the lower part of the housing (4), and a connecting rod (5) is hinged between the lower end of the slider (20) and the upper end of the support cover (7).

3. The adjustable angle cutting mechanism according to claim 2, characterized in that: A connecting block (10) is slidably connected to the side of the bracket (9), and one end of the connecting block (10) is fixedly connected to the side of the support cover (7).

4. The adjustable angle cutting mechanism according to claim 3, characterized in that: An electric push rod (6) is fixed to the side of the inner wall of the support cover (7), and a connecting seat (18) is fixed to one end of the electric push rod (6), and the upper end of the connecting seat (18) is connected to a guide block (11).

5. The adjustable angle cutting mechanism according to claim 4, characterized in that: A guide rail (12) is provided at the upper end of the inner wall of the support cover (7), and the guide rail (12) is slidably connected to the guide block (11).

6. The adjustable angle cutting mechanism according to claim 5, characterized in that: The lower end of the support cover (7) is slidably connected to a cylinder (13), and the interior of the cylinder (13) is slidably connected to a limit block (17).

7. The adjustable angle cutting mechanism according to claim 6, characterized in that: The lower end of the limit block (17) is connected to a slide bar (14), and a cutter (15) is fixed to the lower end of the slide bar (14), and a spring (16) is connected between the upper end of the cutter (15) and the lower end of the cylinder (13).

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