Opening flattening machine for plastic bag processing

Abstract

The utility model relates to the technical field of plastic bag processing, and discloses a flattening machine for plastic bag processing, which comprises a workbench and a controller arranged at the edge position of the front side of the top wall surface of the workbench, an inverted U-shaped mounting support frame is fixedly mounted at the middle position of the top wall surface of the workbench, and a cutting mechanism is arranged in the mounting support frame. The cutting mechanism comprises a height-adjustable lifting mounting plate and a cutting knife fixedly mounted in the middle of the bottom wall face of the lifting mounting plate, and a cutting seam corresponding to the cutting knife in position is formed in the middle of the top wall face of the workbench in a penetrating mode. And two synchronous sliding rods penetrating through the top wall face of the workbench are fixedly installed at the edges of the left side and the right side of the bottom wall face of the lifting installation plate, adjusting sliding grooves are fixedly formed in the bottom ends of the two synchronous sliding rods, and protection mechanisms are arranged on the adjusting sliding grooves. Through the arrangement of the cutting mechanism and the protection mechanism, the cutting safety of the equipment is improved, and the practicability of the equipment is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic bag processing, in particular to a flat mouth machine for plastic bag processing. Background Art

[0002] After searching, application number 202222812357.2 discloses a flat-mouth machine for processing plastic bags, including a storage table and a cutting assembly arranged above the storage table, an inverted U-shaped receiving frame is welded on the top wall of the storage table, and the cutting assembly includes a hydraulic telescopic rod welded to the center of the top wall on the inner side of the receiving frame and a cutting knife welded to the bottom of the hydraulic telescopic rod, wherein the bottom end of the cutting knife is the cutting end, a cutting slit is opened on the top wall of the storage table, and both ends of the cutting slit are formed with installation grooves into the storage table, and distance sensors are installed in both installation grooves.

[0003] During use, the flat-mouth machine for processing plastic bags in this patent application uses a distance sensor to detect the distance between the sensor and the detection block to determine whether there are other external objects above the cut, so as to avoid cutting accidents. However, during such use, the distance sensor and the detection block can only determine whether there are external foreign objects above the cut between the two, but cannot determine whether there are foreign objects at other positions above the cut, so that the use of this equipment still has safety accidents and needs to be improved. To this end, we propose a flat-mouth machine for processing plastic bags. Utility Model Content

[0004] The utility model mainly solves the technical problems existing in the above-mentioned prior art and provides a flat mouth machine for processing plastic bags.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a flat-mouth machine for processing plastic bags, comprising a workbench and a controller arranged at the front side edge position of the top wall of the workbench, an inverted U-shaped mounting support frame is fixedly installed at the middle position of the top wall of the workbench, and a cutting mechanism is arranged inside the mounting support frame, the cutting mechanism comprises a lifting mounting plate which can be adjusted in height and a cutting knife fixedly installed at the middle position of the bottom wall of the lifting mounting plate, a cutting seam corresponding to the position of the cutting knife is opened through the middle position of the top wall of the workbench, two synchronous sliding bars arranged through the top wall of the workbench are fixedly installed at the left and right side edges of the bottom wall of the lifting mounting plate, an adjusting slide groove is fixedly installed at the bottom ends of the two synchronous sliding bars, a protective mechanism is arranged on the adjusting slide groove, the protective mechanism comprises two adjusting nut blocks slidably connected to the inside of the adjusting slide groove and two protective baffles fixedly installed at the top ends of the two adjusting nut blocks, a positioning mechanism is arranged at the right side position of the lifting mounting plate, and the positioning mechanism comprises a positioning pressure plate arranged at the right side position of the lifting mounting plate.

[0006] Furthermore, four supporting legs are fixedly installed at the four corners of the bottom wall of the workbench.

[0007] Furthermore, a vertical electric telescopic rod is fixedly installed in the middle of the inner cavity top wall of the mounting support frame, and the telescopic end of the bottom side of the electric telescopic rod is fixedly installed at a position corresponding to the middle of the top wall of the lifting mounting plate.

[0008] Furthermore, the electric telescopic rod and the controller are electrically connected.

[0009] Furthermore, a bidirectional threaded rod in a horizontal state is rotatably connected in the inner cavity of the adjusting slide groove, and the front and rear ends of the bidirectional threaded rod are respectively provided with threads in opposite directions and are connected to the internal threads of the two adjusting nut blocks.

[0010] Furthermore, the front end of the bidirectional threaded rod passes through the front wall surface of the inner cavity of the adjusting slide groove, extends to the outside and is fixedly installed with an adjusting hand wheel.

[0011] Furthermore, the top ends of the two protective baffles penetrate the interior of the cutting seam and are in close contact with the bottom end of the cutting knife.

[0012] Furthermore, a horizontal supporting cross plate is symmetrically fixedly installed on the right wall surface of the lifting installation plate, and the right ends of the two supporting cross plates are slidably connected to two positioning slide bars fixedly connected to the top wall surface of the positioning pressure plate.

[0013] Furthermore, two positioning springs are sleeved on the outer wall surfaces of the two positioning slide bars, and the bottom wall surfaces of the two supporting transverse plates are fixedly connected to the top wall surface of the positioning pressure plate through the two positioning springs.

[0014] Furthermore, the height of the positioning plate is lower than the height of the bottom end of the cutting knife.

[0015] Beneficial Effects

[0016] The utility model provides a flat mouth machine for processing plastic bags, which has the following beneficial effects:

[0017] 1. The flat-mouth machine for processing plastic bags is provided with a cutting mechanism and a protective mechanism. When in use, several plastic bags to be cut are stacked together and placed flat on the top wall of the workbench, and the bag opening position to be cut of the plastic bags is aligned with the cutting seam position, and the adjusting hand wheel is turned to drive the bidirectional threaded rod to rotate, forcing the two adjusting nut blocks threadedly connected with the bidirectional threaded rod to drive the two protective baffles to move against each other and abut against the front and rear ends of the plastic bag. At this time, the two protective baffles block the part of the bottom end of the cutting knife that does not participate in the cutting operation, so that only the plastic bag can be placed under the cutting knife to prevent foreign objects from being cut, thereby improving the protective effect of the equipment. At this time, the telescopic end of the electric telescopic rod is controlled by the controller to drive the cutting knife on the lifting mounting plate to move downward to perform a cutting operation on the plastic bag. At the same time, the lifting mounting plate also drives the two protective baffles on the adjusting slide slot to move downward synchronously with the cutting knife through the two synchronous slide bars, which will not affect the cutting of the cutting knife. The above operation is simple and practical, the structure is reasonable and compact, the cutting safety of the equipment is improved, and the practicality of the equipment is improved.

[0018] 2. The flat-mouth machine for processing plastic bags is provided with a positioning mechanism. When the telescopic end of the electric telescopic rod drives the cutting knife to move downward through the lifting mounting plate to cut the plastic bag, the lifting mounting plate drives the positioning pressing plate to move downward through the supporting cross plate and the positioning slide bar to contact the top of the plastic bag first, and the plastic bag is pressed and positioned under the elastic force of the positioning spring, thereby improving the subsequent cutting effect of the cutting knife on the plastic bag, improving the practicality of the equipment, and only using the electric telescopic rod to drive the cutting knife and the positioning pressing plate to move up and down, thereby reducing the use cost of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The structures, proportions, sizes, etc. illustrated in this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the conditions under which the utility model can be implemented, so they have no substantial technical significance.

[0020] Figure 1 This is a schematic diagram of the structure of a flat-mouth machine for processing plastic bags of the utility model;

[0021] Figure 2 This is a cross-sectional view of a flat-mouth machine for processing plastic bags according to the utility model;

[0022] Figure 3 for Figure 1 A is an enlarged schematic diagram.

[0023] Legend:

[0024] 10. Workbench; 11. Support legs; 12. Mounting support frame; 13. Lifting mounting plate; 14. Cutting knife; 15. Electric telescopic rod; 16. Synchronous slide bar; 17. Cutting seam; 18. Adjusting slide groove; 19. Adjusting nut block; 20. Protective baffle; 21. Bidirectional threaded rod; 22. Adjusting hand wheel; 23. Positioning slide bar; 24. Positioning pressure plate; 25. Positioning spring; 26. Controller; 27. Support cross plate. DETAILED DESCRIPTION

[0025] A flat mouth machine for processing plastic bags, such as Figure 1-3As shown, it includes a workbench 10 and a controller 26 arranged at the front side edge of the top wall of the workbench 10. The controller 26 is a well-known technology and is not described in detail. Four supporting legs 11 are fixedly installed at the four corners of the bottom wall of the workbench 10. An inverted U-shaped mounting support frame 12 is fixedly installed in the middle of the top wall of the workbench 10. A cutting mechanism is arranged inside the mounting support frame 12. The cutting mechanism includes a lifting mounting plate 13 that can be adjusted in height and a cutting knife 14 fixedly installed at the middle of the bottom wall of the lifting mounting plate 13. The inner cavity top wall of the mounting support frame 12 is fixedly installed with a The electric telescopic rod 15 is in a vertical state, and the telescopic end of the bottom side of the electric telescopic rod 15 is fixedly installed at a position corresponding to the middle position of the top wall surface of the lifting installation plate 13. The electric telescopic rod 15 and the controller 26 are electrically connected. A cutting seam 17 corresponding to the position of the cutting knife 14 is opened through the middle position of the top wall surface of the workbench 10. Two synchronous slide bars 16 that are arranged through the top wall surface of the workbench 10 are fixedly installed at the left and right edge positions of the bottom wall surface of the lifting installation plate 13. An adjusting slide groove 18 is fixedly installed at the bottom end of the two synchronous slide bars 16. The adjusting slide groove 18 is provided with a protective mechanism, and the protective mechanism includes a protective mechanism with an adjusting There are two adjusting nut blocks 19 slidably connected inside the section slide 18 and two protective baffles 20 fixedly installed on the top of the two adjusting nut blocks 19. A bidirectional threaded rod 21 in a horizontal state is rotatably connected in the inner cavity of the adjusting slide 18. The front and rear ends of the bidirectional threaded rod 21 are respectively provided with threads in opposite directions and are connected with the internal threads of the two adjusting nut blocks 19. The front end of the bidirectional threaded rod 21 penetrates the front wall surface of the inner cavity of the adjusting slide 18 and extends to the outside and is fixedly installed with an adjusting hand wheel 22. The top ends of the two protective baffles 20 penetrate the inside of the cutting seam 17 and are in close contact with the bottom end of the cutting knife 14. The lifting and lowering mounting plate A positioning mechanism is provided on the right side of 13, and the positioning mechanism includes a positioning pressure plate 24 provided on the right side of the lifting installation plate 13, and a horizontal supporting cross plate 27 is symmetrically fixedly installed on the right wall surface of the lifting installation plate 13, and the right ends of the two supporting cross plates 27 are slidably connected with two positioning slide bars 23 fixedly connected to the top wall surface of the positioning pressure plate 24, and the outer wall surfaces of the two positioning slide bars 23 are sleeved with two positioning springs 25, and the bottom wall surfaces of the two supporting cross plates 27 are fixedly connected to the top wall surface of the positioning pressure plate 24 through the two positioning springs 25, and the position height of the positioning pressure plate 24 is lower than the position height of the bottom end of the cutting knife 14.

[0026] The working principle of the utility model is as follows: when in use, several plastic bags to be cut are stacked together and laid flat on the top wall of the workbench 10, and the position where the bag mouth of the plastic bag needs to be cut is aligned with the position of the cutting seam 17, and the adjusting hand wheel 22 is turned to drive the bidirectional threaded rod 21 to rotate, forcing the two adjusting nut blocks 19 threadedly connected to the bidirectional threaded rod 21 to drive the two protective baffles 20 to move against each other and abut against the front and rear ends of the plastic bag. At this time, the two protective baffles 20 block the part of the bottom end of the cutting knife 14 that is not involved in the cutting operation, so that only the plastic bag can be placed under the cutting knife 14 to prevent foreign objects from being cut, thereby improving the protection effect of the equipment. At this time, the telescopic end of the electric telescopic rod 15 is controlled by the controller 26 to drive the cutting knife 14 on the lifting mounting plate 13 to move downward to cut the plastic bag, and the lifting mounting plate 13 also moves through two synchronous The step slide bar 16 drives the two protective baffles 20 on the adjustment slide slot 18 to move downward synchronously with the cutting knife 14, which will not affect the cutting of the cutting knife 14. The above operation is simple and practical, the structure is reasonable and compact, the safety of cutting of the equipment is improved, and the practicality of the equipment is improved; when the telescopic end of the electric telescopic rod 15 drives the cutting knife 14 to move downward through the lifting mounting plate 13 to cut the plastic bag, the lifting mounting plate 13 drives the positioning pressing plate 24 to move downward through the supporting cross plate 27 and the positioning slide bar 23 to contact the top of the plastic bag first, and compresses and positions the plastic bag under the elastic force of the positioning spring 25, thereby improving the subsequent cutting effect of the cutting knife 14 on the plastic bag, improving the practicality of the equipment, and only the electric telescopic rod 15 is used to drive the cutting knife 14 and the positioning pressing plate 24 to move up and down, thereby reducing the use cost of the equipment.

[0027] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. The technicians in this industry should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A flat-mouth machine for processing plastic bags, comprising a workbench (10) and a controller (26) arranged at the front edge of the top wall of the workbench (10), characterized in that: An inverted U-shaped mounting support frame (12) is fixedly mounted at the middle position of the top wall of the workbench (10), and a cutting mechanism is arranged inside the mounting support frame (12), the cutting mechanism comprising a lifting mounting plate (13) that can be adjusted in height and a cutting knife (14) fixedly mounted at the middle position of the bottom wall of the lifting mounting plate (13), a cutting slit (17) corresponding to the position of the cutting knife (14) is opened through the middle position of the top wall of the workbench (10), and left and right side edges of the bottom wall of the lifting mounting plate (13) are fixedly mounted to the working table (10). ) are provided with two synchronous slide bars (16) penetrating the top wall surface of the lifting installation plate (13), the bottom ends of the two synchronous slide bars (16) are fixedly installed with adjustment slide grooves (18), and the adjustment slide grooves (18) are provided with a protection mechanism, the protection mechanism comprises two adjustment nut blocks (19) slidably connected to the inside of the adjustment slide grooves (18) and two protection baffles (20) fixedly installed to the top ends of the two adjustment nut blocks (19), and a positioning mechanism is provided at the right side position of the lifting installation plate (13), and the positioning mechanism comprises a positioning pressure plate (24) arranged at the right side position of the lifting installation plate (13).

2. The flat-mouth machine for processing plastic bags according to claim 1, characterized in that: Four supporting legs (11) are fixedly mounted at the four corners of the bottom wall of the workbench (10).

3. The flat mouth machine for plastic bag processing according to claim 1, characterized in that: An electric telescopic rod (15) in a vertical state is fixedly installed at the middle position of the inner cavity top wall surface of the mounting support frame (12), and the telescopic end on the bottom side of the electric telescopic rod (15) is fixedly installed at a position corresponding to the middle position of the top wall surface of the lifting mounting plate (13), and the electric telescopic rod (15) and the controller (26) are electrically connected.

4. The flat-mouth machine for processing plastic bags according to claim 1, characterized in that: A bidirectional threaded rod (21) in a horizontal state is rotatably connected in the inner cavity of the adjusting slide groove (18); the front and rear ends of the bidirectional threaded rod (21) are respectively provided with threads in opposite directions and are connected to the internal threads of two adjusting nut blocks (19); the front end of the bidirectional threaded rod (21) passes through the front wall surface of the inner cavity of the adjusting slide groove (18) and extends to the outside and is fixedly installed with an adjusting hand wheel (22).

5. The flat-mouth machine for processing plastic bags according to claim 1, characterized in that: The top ends of the two protective baffles (20) penetrate the interior of the cutting seam (17) and are in close contact with the bottom end of the cutting knife (14).

6. The flat-mouth machine for processing plastic bags according to claim 1, characterized in that: A horizontal supporting transverse plate (27) is symmetrically fixedly installed on the right wall of the lifting installation plate (13); the right ends of the two supporting transverse plates (27) are slidably connected with two positioning slide bars (23) fixedly connected to the top wall of the positioning pressure plate (24); two positioning springs (25) are sleeved on the outer wall surfaces of the two positioning slide bars (23); and the bottom wall surfaces of the two supporting transverse plates (27) are fixedly connected to the top wall of the positioning pressure plate (24) via the two positioning springs (25).

7. The flat-mouth machine for processing plastic bags according to claim 1, characterized in that: The height of the positioning pressing plate (24) is lower than the height of the bottom end of the cutting knife (14).

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