Bag making machine with protection device

Abstract

The utility model discloses a bag making machine with a protection device, which belongs to the technical field of bag making machines, and adopts the technical scheme that the bag making machine comprises a worktable, a U-shaped plate is mounted on the worktable, a telescopic cylinder is fixedly mounted in the middle of the top surface of the U-shaped plate, and the output end of the telescopic cylinder extends into the U-shaped plate; a mounting frame is mounted at the end part of the output end of the telescopic cylinder, two guide rods are movably mounted on the mounting frame, a cutter body is mounted at one end of each guide rod, the other end of each guide rod is in threaded connection with a nut, a buffer spring is mounted between the upper surface of the cutter body and the bottom surface of the mounting frame, and a cutter edge is arranged on the cutter body. Baffles are installed on the side walls of the long edges of the U-shaped plate in a sliding mode, and a driving assembly used for driving the baffles is installed on the portion, located on the side wall of a short plate of the U-shaped plate, of the workbench.

Description

Technical Field

[0001] The utility model belongs to the technical field of bag making machines, and more specifically relates to a bag making machine with a protective device. Background Art

[0002] Bag making machine is a machine for making 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.

[0003] The bag making machine needs to cut the plastic bags during the bag making process. The cutter of the bag making machine is exposed to the outside, and external objects or operators can easily come into contact with the cutter. It has no hand-cutting protection function, which poses certain safety hazards and is inconvenient for people to use. Utility Model Content

[0004] In view of the shortcomings of the prior art, the purpose of the utility model is to provide a bag making machine with a protective device, which has the advantage of preventing hands from being cut.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A bag making machine with a protective device comprises a workbench, a U-shaped plate is installed on the workbench, a telescopic cylinder is fixedly installed at the middle position of the top surface of the U-shaped plate, the output end of the telescopic cylinder extends into the U-shaped plate, and a mounting frame is installed at the end of the output end of the telescopic cylinder, two guide rods are movably installed on the mounting frame, a knife body is installed at one end of the guide rod, and a nut is threadedly connected at the other end, a buffer spring is installed between the upper surface of the knife body and the bottom surface of the mounting frame, and a knife edge is provided on the knife body;

[0007] Baffles are slidably mounted on the long side walls of the U-shaped plate, and a driving component for driving the baffles is mounted on the workbench and on a short side wall of the U-shaped plate.

[0008] The advantages of this solution are at least that: when the bag making machine is working, the baffle is moved down by starting the drive assembly, thereby protecting the periphery of the cutter body, avoiding direct contact between employees and the cutter body, thereby preventing safety accidents. When the cutter body needs to be replaced, it is only necessary to unscrew the nut, thereby removing the guide rod and the cutter body on the guide rod from the mounting frame as a whole, and then the cutter body can be replaced. The buffer spring provided plays a buffering role when the cutter body cuts the bag.

[0009] The utility model is further configured as follows: two vertical plates and two L-shaped plates located below the vertical plates are symmetrically installed on the short side walls of the U-shaped plate, and the driving assembly includes: a double-axis servo motor, a lead screw and a slider, the double-axis servo motor is installed between the two L-shaped plates, the output end of the double-axis servo motor passes through the L-shaped plate and is rotatably connected to the L-shaped plate, and a first bevel gear is installed at the output end of the double-axis servo motor;

[0010] The screw rod is rotatably mounted on the vertical plate and the L-shape, one end of the screw rod passes through the L-shaped plate, and a second bevel gear meshing with the first bevel gear is installed at the end of the screw rod passing through the L-shaped plate. The slider is fixedly mounted on the side wall of the baffle, and the slider is threadedly connected to the screw rod.

[0011] The advantage of this solution is at least that when the two baffles are raised and lowered, it is only necessary to start the dual-axis servo motor, thereby driving the first bevel gear at the output end of the dual-axis servo motor and the second bevel gear meshing therewith to rotate. At the same time, the lead screw fixedly connected to the second bevel gear is driven to rotate, so that the slider moves up and down on the lead screw, thereby allowing the baffles slidably installed at both ends of the U-shaped plate to move up and down synchronously.

[0012] The utility model is further configured as follows: a mounting plate is installed on the side wall of one of the L-shaped plates, a proximity switch sensor is installed on the mounting plate, and the proximity switch sensor is electrically connected to the dual-axis servo motor, the controller and the alarm through wires.

[0013] The advantages of this solution are at least that: when the baffle moves downward, when one side of the slider contacts the proximity switch sensor, an alarm sounds, and the controller controls the dual-axis servo motor to stop, thereby preventing the slider from moving the baffle downward excessively, and reminding the operator to proceed to the next step. At the same time, when the slider does not contact the proximity switch, the connected alarm may also sound, thereby reminding the operator to check whether a fault occurs.

[0014] The utility model is further configured as follows: a stabilizing block is provided on the side wall of the baffle away from the sliding block, the stabilizing block is closely attached to the side wall of the U-shaped plate, and is slidably connected with the U-shaped plate.

[0015] The advantage of this solution is at least that the provision of the stabilizing block makes the baffle more stable when it moves up and down.

[0016] The utility model is further configured as follows: a protective shell is installed on the vertical plate and the side wall of the L-shaped plate, and the protective shell is fixed to the vertical plate and the L-shaped plate by bolts.

[0017] The advantage of this solution is at least that the provision of the protective shell prevents employees from touching the screw when it is working, thereby preventing safety accidents.

[0018] The utility model is further configured as follows: the baffle is configured to be transparent.

[0019] The advantage of this solution is at least that the transparent baffle makes it easy to observe the working state of the cutter body during operation and also makes it easy to observe whether the cutter body is worn.

[0020] In summary, the utility model has at least the following advantages:

[0021] 1. By setting the guide rod, nut, baffle and drive assembly, when the bag making machine is working, the baffle is moved down by starting the drive assembly, so as to protect the periphery of the knife body, avoiding direct contact between employees and the knife body, thereby preventing safety accidents. When the knife body needs to be replaced, it is only necessary to unscrew the nut, so as to remove the guide rod and the knife body on the guide rod from the mounting frame as a whole, and then replace the knife body. The buffer spring provided plays a buffering role when the knife body cuts the bag;

[0022] 2. By setting a double-axis servo motor, a lead screw and a slider, when the two baffles are raised and lowered, it is only necessary to start the double-axis servo motor to drive the first bevel gear at the output end of the double-axis servo motor and the second bevel gear meshing therewith to rotate. While rotating, the lead screw fixedly connected to the second bevel gear is driven to rotate, so that the slider moves up and down on the lead screw, so that the baffles slidably installed at both ends of the U-shaped plate can move up and down synchronously, and the stabilizing block arranged on the side wall of the baffle makes the baffle more stable when moving up and down;

[0023] 3. By setting the proximity switch sensor, alarm and controller, when the baffle moves downward, when one side of the slider contacts the proximity switch sensor, the alarm sounds and the controller controls the dual-axis servo motor to stop, preventing the slider from moving down excessively with the baffle, and reminding the operator to proceed to the next step. At the same time, when the slider does not contact the proximity switch, the connected alarm may also sound, thereby reminding the operator to check whether there is a fault. The setting of the protective shell prevents employees from touching the screw when it is working, thereby causing safety accidents. The transparent baffle makes it convenient to observe the working status of the cutter body during operation, and also facilitates observation of whether the cutter body is worn. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is an overall schematic diagram of this embodiment;

[0025] Figure 2 This is an overall schematic diagram of the embodiment without the baffle;

[0026] Figure 3 This is an exploded schematic diagram of this embodiment;

[0027] Figure 4 for Figure 1 A magnified schematic diagram of part A;

[0028] Figure 5 for Figure 1 Schematic diagram of the enlarged portion B.

[0029] Figure numerals: 1. workbench; 2. U-shaped plate; 3. telescopic cylinder; 4. mounting frame; 5. guide rod; 6. knife body; 7. nut; 8. buffer spring; 9. knife edge; 10. baffle; 11. drive assembly; 1101. dual-axis servo motor; 1102. screw rod; 1103. slider; 12. vertical plate; 13. L-shaped plate; 14. first bevel gear; 15. second bevel gear; 16. mounting plate; 17. proximity switch sensor; 18. stabilizing block; 19. protective shell. DETAILED DESCRIPTION

[0030] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0031] A bag making machine with a protective device, such as Figure 1 , Figure 2 As shown, it includes a workbench 1, a U-shaped plate 2 is installed on the workbench 1, a telescopic cylinder 3 is fixedly installed in the middle position of the top surface of the U-shaped plate 2, the output end of the telescopic cylinder 3 extends into the U-shaped plate 2, and a mounting frame 4 is installed at the end of the output end of the telescopic cylinder 3, and the mounting frame 4 is movably installed with two guide rods 5, one end of the guide rod 5 is installed with a knife body 6, and the other end is threadedly connected with a nut 7, a buffer spring 8 is installed between the upper surface of the knife body 6 and the bottom surface of the mounting frame 4, and the knife body 6 is provided with a knife edge 9;

[0032] Furthermore, baffles 10 are slidably installed on the long side walls of the U-shaped plate 2, and the baffles 10 are set to be transparent (the baffles 10 are preferably transparent acrylic plates). The transparent baffles 10 are convenient for observing the working status of the blade body 6 during operation, and also for observing whether the blade body 6 is worn.

[0033] like Figure 3 , Figure 4 As shown, a driving assembly 11 for driving the baffle 10 is installed on a short plate side wall of the U-shaped plate 2 on the workbench 1, two vertical plates 12 and two L-shaped plates 13 located below the vertical plates 12 are symmetrically installed on the short side wall of the U-shaped plate 2, and the driving assembly 11 includes: a double-axis servo motor 1101, a screw rod 1102 and a slider 1103, the double-axis servo motor 1101 is installed between the two L-shaped plates 13, the output end of the double-axis servo motor 1101 passes through the L-shaped plate 13 and is rotatably connected to the L-shaped plate 13, and a first bevel gear 14 is installed at the output end of the double-axis servo motor 1101;

[0034] The screw rod 1102 is rotatably mounted on the vertical plate 12 and the L-shape, one end of the screw rod 1102 passes through the L-shaped plate 13, and a second bevel gear 15 meshing with the first bevel gear 14 is installed at the end of the screw rod 1102 passing through the L-shaped plate 13. The slider 1103 is fixedly mounted on the side wall of the baffle 10, and the slider 1103 is threadedly connected to the screw rod 1102.

[0035] like Figure 5 As shown, in order to conveniently remind the operator whether the baffle 10 has moved into place, in some embodiments, a mounting plate 16 is installed on the side wall of one of the L-shaped plates 13, and a proximity switch sensor 17 is installed on the mounting plate 16. The proximity switch sensor 17 is electrically connected to the dual-axis servo motor 1101, the controller and the alarm through wires (the controller and the alarm are not shown in the figure). In order to improve the stability of the baffle 10 during the up and down movement, a stabilizing block 18 is provided on the side wall of the baffle 10 away from the slider 1103. The stabilizing block 18 is close to the side wall of the U-shaped plate 2 and is slidably connected to the U-shaped plate 2. In order to prevent employees from touching the moving screw rod 1102 when the screw rod 1102 is working, thereby causing a safety accident, a protective shell 19 is installed on the side walls of the vertical plate 12 and the L-shaped plate 13, and the protective shell 19 is fixed to the vertical plate 12 and the L-shaped plate 13 by bolts.

[0036] The working process and beneficial effects of the utility model are as follows:

[0037] When the bag making machine is working, by starting the dual-axis servo motor 1101, the first bevel gear 14 at the output end of the dual-axis servo motor 1101 and the second bevel gear 15 meshing therewith are driven to rotate. At the same time, the screw rod 1102 fixedly connected to the second bevel gear 15 is driven to rotate, so that the slider 1103 moves up and down on the screw rod 1102, so that the baffles 10 slidably installed at both ends of the U-shaped plate 2 can move up and down synchronously, thereby protecting the periphery of the knife body 6. When the baffle 10 moves downward, when one side of the slider 1103 contacts the proximity switch sensor 17, an alarm sounds, and the dual-axis servo motor 1101 is controlled to stop by the controller to prevent the slider 1103 from moving down excessively with the baffle 10, and remind the operator to proceed to the next step of work. At the same time, when the slider 1103 does not contact the proximity switch, the connected alarm may also sound, thereby reminding the operator to detect whether there is a fault, thereby avoiding direct contact between the employee and the knife body 6, thereby causing a safety accident.

[0038] When the cutter body 6 needs to be replaced, the dual-axis servo motor 1101 is started to move the baffle 10 upwards. The nut 7 is only needed to be unscrewed, so that the guide rod 5 and the cutter body 6 on the guide rod 5 can be removed from the mounting frame 4 as a whole, and the cutter body 6 can be replaced. The buffer spring 8 provided plays a buffering role when the cutter body 6 cuts the bag.

[0039] When the knife body needs to be replaced, the dual-axis servo motor is started to move the baffle up. The nut is only needed to be unscrewed to remove the guide rod and the knife body on the guide rod from the mounting frame as a whole, and the knife body can be replaced. The buffer spring provided plays a buffering role when the knife body cuts the bag.

[0040] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the design concept of the present invention should be included in the protection scope of the present invention.

Claims

1. A bag making machine with a protective device, comprising a workbench (1), on which a U-shaped plate (2) is mounted, characterized in that: A telescopic cylinder (3) is fixedly mounted in the middle of the top surface of the U-shaped plate (2), the output end of the telescopic cylinder (3) extends into the U-shaped plate (2), and a mounting frame (4) is mounted at the end of the output end of the telescopic cylinder (3), the mounting frame (4) is movably mounted with two guide rods (5), one end of the guide rod (5) is mounted with a knife body (6), and the other end is threadedly connected with a nut (7), a buffer spring (8) is mounted between the upper surface of the knife body (6) and the bottom surface of the mounting frame (4), and a knife edge (9) is provided on the knife body (6); Baffles (10) are slidably mounted on the long side walls of the U-shaped plate (2), and a driving component (11) for driving the baffles (10) is mounted on a short side wall of the workbench (1) and located on the U-shaped plate (2).

2. The bag making machine with a protective device according to claim 1, characterized in that: Two vertical plates (12) and two L-shaped plates (13) located below the vertical plates (12) are symmetrically mounted on the short side walls of the U-shaped plate (2); the driving assembly (11) comprises: a dual-axis servo motor (1101), a lead screw (1102) and a slider (1103); the dual-axis servo motor (1101) is mounted between the two L-shaped plates (13); an output end of the dual-axis servo motor (1101) passes through the L-shaped plate (13) and is rotatably connected to the L-shaped plate (13); and a first bevel gear (14) is mounted on the output end of the dual-axis servo motor (1101); The screw rod (1102) is rotatably mounted on the vertical plate (12) and the L-shaped plate, one end of the screw rod (1102) passes through the L-shaped plate (13), and a second bevel gear (15) meshing with the first bevel gear (14) is mounted on the end of the screw rod (1102) passing through the L-shaped plate (13), and the slider (1103) is fixedly mounted on the side wall of the baffle (10), and the slider (1103) is threadedly connected to the screw rod (1102).

3. The bag making machine with a protective device according to claim 2, characterized in that: A mounting plate (16) is installed on the side wall of one of the L-shaped plates (13), and a proximity switch sensor (17) is installed on the mounting plate (16). The proximity switch sensor (17) is electrically connected to the dual-axis servo motor (1101), the controller and the alarm through electric wires.

4. The bag making machine with a protective device according to claim 3, characterized in that: A stabilizing block (18) is provided on the side wall of the baffle (10) at one end away from the slider (1103); the stabilizing block (18) is closely attached to the side wall of the U-shaped plate (2) and is slidably connected to the U-shaped plate (2).

5. The bag making machine with a protective device according to claim 4, characterized in that: A protective shell (19) is installed on the side walls of the vertical plate (12) and the L-shaped plate (13), and the protective shell (19) is fixed to the vertical plate (12) and the L-shaped plate (13) by means of bolts.

6. The bag making machine with a protective device according to claim 5, characterized in that: The baffle (10) is designed to be transparent.

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