Cutter mechanism of bag making machine

Abstract

The utility model discloses a cutter mechanism of a bag making machine, which belongs to the field of cutter mechanisms and comprises a machine frame and a mounting mechanism. The positioning head continuously moves in and out of an adjusting limiting hole formed in the cutter body under the extrusion of the cutter body and the elastic acting force of the compression spring so as to play a positioning role, and the cutter body is inserted into the mounting cavity and is adjusted downwards to extend out by a specified distance; a screw knob is rotated to push a push plate in an inner cavity to move forwards through a rotating block until a limiting rod is inserted into a through hole and penetrates through a corresponding adjusting limiting hole, so that the purpose of conveniently adjusting, mounting and using the cutter body is achieved, the cutter body can be timely disassembled and replaced after being damaged, and meanwhile, the cutter body is convenient to adjust, mount and use. The use extension distance of the cutter body is correspondingly adjusted, so that bag-making materials can be effectively cut off when the cutter is used for cutting the bag-making materials with different thickness specifications.

Description

Technical Field

[0001] The utility model relates to the field of cutter mechanisms, in particular to a cutter mechanism for a bag making machine. 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.

[0003] In the prior art, a bag making machine is generally provided with a cutting mechanism inside, through which the bag making material is cut. The cutting mechanism is usually composed of a cutting knife and a driving assembly, and the driving assembly drives the cutting knife to complete the cutting of the bag making material in the process of realizing up and down reciprocating motion. However, in actual use of the existing cutting mechanism, since the cutting knife is mostly mounted on the knife holder by bolts, it is inconvenient to disassemble and replace the cutting knife when the cutting knife is worn out after long-term use, and the disassembly and assembly operation is relatively troublesome. At the same time, since it is inconvenient to adjust the use length of the cutting knife, incomplete cutting may occur when cutting bag making materials of different thickness specifications, thereby affecting the bag making qualification rate. Utility Model Content

[0004] The main purpose of the utility model is to provide a bag making machine cutting mechanism, which can effectively solve the problems in the background technology.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] The top end of the movable plate is fixedly connected to the T-shaped slide rail by the T-shaped slide rail provided on the left and right side walls of the movable plate, and the bottom end of the movable plate is fixedly connected to the cutter body by a mounting mechanism, and the mounting mechanism includes a knife mounting seat, a push plate, a screw knob, a limit rod, a compression spring and a positioning head. The knife mounting seat is fixedly connected to the bottom surface of the movable plate, and the push plate is movably connected to the inside of the knife mounting seat, the screw knob is movably connected to the threaded hole on the rear wall of the knife mounting seat, and the screw knob is movably connected to the push plate through a rotating block at the front end, the limit rod is fixedly connected to both sides of the front wall of the push plate, and a compression spring is fixedly connected to the front end of the limit rod, and the front end of the compression spring is fixedly connected to the positioning head.

[0007] Preferably, a plurality of adjustment limit holes are provided on the left and right sides of the front wall of the cutter body in a vertical array.

[0008] Preferably, the mounting knife seat is fixedly mounted on the bottom surface of the movable plate, and a mounting cavity is provided on the bottom surface of the mounting knife seat, and corresponding through holes are provided at the lower parts of the front and rear walls inside the mounting cavity, and an inner cavity is also provided inside the mounting knife seat and behind the mounting cavity, the through hole is connected to the inner cavity, and a threaded hole is provided on the inner rear wall of the inner cavity.

[0009] Preferably, the push plate is movably installed in the inner cavity, and a group of left-right symmetrical limit rods are fixedly installed on the front wall of the push plate. The limit rods are inserted into the through hole and pass through the adjustment limit hole. A convex groove is also provided on the rear wall of the push plate.

[0010] Preferably, a spring groove is provided on the front end wall of the limiting rod, and a compression spring is fixedly installed at the bottom end of the spring groove, and a positioning head is fixedly installed at the front end of the compression spring.

[0011] Preferably, the screw knob is threadedly connected to the threaded hole, and a rotating block is fixedly mounted on the front end of the screw knob, and the rotating block is movably mounted in the convex groove.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] The utility model provides an installation mechanism. When the cutter body is inserted into the installation cavity below the installation knife seat, the positioning head will continuously move in and out of the adjustment limit hole provided on the cutter body under the extrusion of the cutter body and the elastic force of the compression spring to play a positioning role. After the cutter body is inserted into the installation cavity and adjusted downward to extend a specified distance, the screw knob is rotated to push the push plate in the inner cavity to move forward through the rotating block until the limit rod is inserted into the through hole and passes through the corresponding adjustment limit hole, thereby achieving the purpose of facilitating the adjustment and installation of the cutter body, and the cutter body can be disassembled and replaced in time if it is damaged. At the same time, by adjusting the use extension distance of the cutter body accordingly, it can effectively cut the bag-making materials when cutting bag-making materials of different thickness specifications, thereby ensuring the bag-making qualification rate of the bag-making machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the overall structure of the movable plate of the utility model;

[0016] Figure 3 It is a cross-sectional schematic diagram of the installation tool holder of the utility model;

[0017] Figure 4 It is a schematic cross-sectional view of the structure of the installation mechanism of the present utility model;

[0018] Figure 5 For the utility model Figure 4 A schematic diagram of the structure cutaway at point A;

[0019] Figure 6 This is a schematic diagram of the overall structure of the cutter body of the present utility model;

[0020] Figure 7 It is a side cutaway schematic diagram of the cutter body and the mounting mechanism of the present invention.

[0021] In the figure: 1. Frame; 2. T-shaped slide rail; 3. Cylinder; 4. Movable plate; 5. T-shaped slide groove; 6. Cutter body; 7. Mounting mechanism; 8. Cutter mounting base; 9. Mounting cavity; 10. Through hole; 11. Inner cavity; 12. Threaded hole; 13. Push plate; 14. Convex groove; 15. Screw knob; 16. Rotating block; 17. Limit rod; 18. Spring groove; 19. Compression spring; 20. Positioning head; 21. Adjustment limit hole. DETAILED DESCRIPTION

[0022] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0023] like Figure 1 - Figure 6 As shown, a bag making machine cutting mechanism includes a frame 1, a group of symmetrical T-shaped slide rails 2 are fixedly connected to the left and right side walls of the interior of the frame 1, and a cylinder 3 is fixedly connected to the top surface of the frame 1, and the bottom end of the output end of the cylinder 3 is fixedly connected to a movable plate 4, and the movable plate 4 is movably connected to the T-shaped slide rails 2 through the T-shaped slide grooves 5 opened on the left and right side walls. A cutter body 6 is fixedly connected to the bottom of the movable plate 4 through a mounting mechanism 7. When cutting the material, the cylinder 3 installed on the top surface of the frame 1 is turned on, and the cylinder 3 will make a driving source to drive the movable plate 4 up and down through the output end. When the movable plate 4 moves, it will slide along the T-shaped slide rails 2 through the T-shaped slide grooves 5 opened on both sides, and drive the cutter body 6 installed below through the mounting mechanism 7 to realize an up and down reciprocating movement operation, so as to achieve the purpose of cutting the material;

[0024] The mounting mechanism 7 includes a mounting knife seat 8, a push plate 13, a screw knob 15, a limit rod 17, a compression spring 19 and a positioning head 20. The mounting knife seat 8 is fixedly connected to the bottom surface of the movable plate 4, and the push plate 13 is movably connected to the inside of the mounting knife seat 8. The screw knob 15 is movably connected to the threaded hole 12 on the rear wall of the mounting knife seat 8, and the screw knob 15 is movably connected to the push plate 13 through the rotating block 16 at the front end. The limit rod 17 is fixedly connected to both sides of the front wall of the push plate 13, and the front end of the limit rod 17 is fixedly connected to a compression spring 19, and the front end of the compression spring 19 is fixedly connected to a positioning head 20.

[0025] like Figure 6 As shown, a plurality of adjustment limit holes 21 are provided on the left and right sides of the front wall of the cutter body 6 in a vertical array. The adjustment limit holes 21 provided on the cutter body 6 are used to cooperate with the positioning head 20 to adjust the positioning, and can cooperate with the limit rod 17 to achieve the function of limiting installation.

[0026] like Figure 3 As shown, the mounting knife seat 8 is fixedly mounted on the bottom surface of the movable plate 4, and a mounting cavity 9 is provided on the bottom surface of the mounting knife seat 8. Corresponding through holes 10 are respectively provided at the lower parts of the front and rear walls of the interior of the mounting cavity 9, and an inner cavity 11 is further provided inside the mounting knife seat 8 and behind the mounting cavity 9. The through hole 10 is communicated with the inner cavity 11, and a threaded hole 12 is provided on the inner rear wall of the inner cavity 11. The cutter body 6 can be inserted into the mounting cavity 9 provided on the mounting knife seat 8, and the through hole 10 provided in the mounting cavity 9 is used to cooperate with the limiting rod 17 to limit the cutter body 6, and the inner cavity 11 provided can enable the push plate 13 to move back and forth inside, and the threaded hole 12 provided in the inner cavity 11 is used to cooperate with the screw knob 15 to realize the threaded rotation operation;

[0027] like Figure 4 As shown, the push plate 13 is movably installed in the inner cavity 11, and a group of left-right symmetrical limit rods 17 are fixedly installed on the front wall of the push plate 13. The limit rods 17 are inserted into the through hole 10 and pass through the adjustment limit hole 21. A convex groove 14 is also provided on the rear wall of the push plate 13. When the cutter body 6 is inserted into the installation cavity 9, the push plate 13 moves forward in the inner cavity 11, so that the limit rods 17 installed on the front wall are inserted into the through holes 10 opened on the front and rear end walls inside the installation cavity 9, and pass through the corresponding adjustment limit holes 21 on the cutter body 6 in the process, so that the cutter body 6 can be quickly limited and fixed to the bottom of the installation seat 8 for use;

[0028] like Figure 5As shown, a spring groove 18 is provided on the front end wall of the limit rod 17, and a compression spring 19 is fixedly installed at the bottom end of the spring groove 18, and a positioning head 20 is fixedly installed at the front end of the compression spring 19. When the cutter body 6 is inserted into the installation cavity 9, the cutter body 6 will squeeze the positioning head 20 protruding from the through hole 10 provided at the lower rear wall of the installation cavity 9. The positioning head 20 will force the compression spring 19 installed in the spring groove 18 to retract, so that the cutter body 6 will feel stuck when it is continuously inserted into the installation cavity 9. When the cutter body 6 is continuously moved upward, the positioning head 20 will be stuck in the corresponding adjustment limit hole 21 under the elastic force of the compression spring 19 after losing the squeezing of the cutter body 6, thereby achieving the purpose of installation and adjustment of the cutter body 6. By adjusting the use length of the cutter body 6, the bag-making materials can be effectively cut when cutting bag-making materials of different thickness specifications.

[0029] like Figure 4 As shown, the screw knob 15 is threadedly connected to the threaded hole 12, and a rotating block 16 is fixedly installed at the front end of the screw knob 15. The rotating block 16 is movably installed in the convex groove 14. When the screw knob 15 in the threaded hole 12 is rotated, the screw knob 15 will drive the rotating block 16 to rotate in the convex groove 14, and drive the push plate 13 to move back and forth in the inner cavity 11 through the rotating block 16, so that the limit rod 17 moves in and out of the adjustment limit hole 21, thereby facilitating the disassembly and replacement of the cutter body 6 after the cutter body 6 is damaged.

[0030] It should be noted that the present invention is a bag making machine cutter mechanism. When the cutter body 6 is installed, the cutter body 6 is inserted from the bottom of the movable plate 4 into the mounting cavity 9 opened in the mounting seat 8. When the cutter body 6 enters the mounting cavity 9, the cutter body 6 will squeeze the positioning heads 20 protruding on both sides of the bottom of the rear wall inside the mounting cavity 9. The positioning heads 20 will move into the spring groove 18 opened on the front end wall of the limit rod 17 and force the compression spring 19 installed in the spring groove 18 to retract. The positioning heads 20 will be pressed against the rear wall of the cutter body 6 under the reverse elastic force of the compression spring 19. When the cutter body 6 moves upward to a certain distance in the mounting cavity 9, the positioning heads 20 will be pressed against the rear wall of the cutter body 6. 0 will lose the extrusion force of the cutter body 6, and the positioning head 20 enters the corresponding adjustment limit hole 21 opened on the cutter body 6 under the elastic force of the compression spring 19. When the cutter body 6 continuously enters the installation cavity 9, the adjustment limit hole 21 enters into different corresponding adjustment limit holes 21, thereby adjusting and positioning the cutter body 6. After the cutter body 6 is adjusted to a suitable extended length, the screw knob 15 located on the rear wall of the installation seat 8 is manually rotated. The screw knob 15 will realize a threaded rotation operation in the threaded hole 12 and drive the front rotating block 16 to rotate in the convex groove 14 opened on the rear wall of the push plate 13. The screw knob 15 is continuously rotated. After that, the push plate 13 will be pushed to move forward in the inner cavity 11 by the rotating block 16. At this time, the limit rods 17 installed on both sides of the front wall of the push plate 13 will be inserted into the through hole 10 and pass through the adjustment limit holes 21 on the corresponding positioning rear cutter body 6 until the screw knob 15 can no longer be rotated. Then, the cutter body 6 with the adjusted use length can be installed and fixed on the bottom of the mounting seat 8 for use. When in use, the cylinder 3 installed on the top surface of the frame 1 is turned on. The cylinder 3 will make a driving source to drive the movable plate 4 up and down through the output end. When moving, the movable plate 4 will slide along the T-shaped slide rail 2 through the T-shaped slide grooves 5 opened on both sides, and drive the cutter body 6 installed below through the mounting mechanism 7 to realize up and down reciprocating movement operation, so as to achieve In order to achieve the purpose of cutting the material, when the cutter body 6 is worn or damaged and needs to be replaced, the screw knob 15 is rotated in the opposite direction to drive the push plate 13 to move backward through the rotating block 16, so that the limit rod 17 is removed from the adjustment limit hole 21 until the screw knob 15 can no longer be rotated. The cutter body 6 can then be removed from the bottom of the mounting seat 8 for replacement, thereby achieving the purpose of facilitating the adjustment and installation of the cutter body 6, and the cutter body 6 can be disassembled and replaced in time after it is damaged. At the same time, by adjusting the extended distance of the cutter body 6 accordingly, it can effectively cut off the bag-making materials when cutting bag-making materials of different thickness specifications, thereby ensuring the bag-making qualification rate of the bag-making machine.

[0031] The foregoing description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, various improvements may be made to the present invention and its components may be replaced with equivalents, or some of its technical features may be replaced with equivalents without departing from the scope of the present invention. Anything within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A bag making machine cutting mechanism, comprising a frame (1), wherein a set of symmetrical T-shaped slide rails (2) are fixedly connected to the left and right side walls of the frame (1), and a cylinder (3) is fixedly connected to the top surface of the frame (1), and a movable plate (4) is fixedly connected to the bottom end of the output end of the cylinder (3), and the movable plate (4) is movably connected to the T-shaped slide rails (2) through T-shaped slide grooves (5) provided on the left and right side walls, characterized in that: The cutter body (6) is fixedly connected to the bottom of the movable plate (4) through a mounting mechanism (7), and the mounting mechanism (7) includes a mounting knife seat (8), a push plate (13), a screw knob (15), a limiting rod (17), a compression spring (19) and a positioning head (20), wherein the mounting knife seat (8) is fixedly connected to the bottom surface of the movable plate (4), and the push plate (13) is movably connected to the inside of the mounting knife seat (8), the screw knob (15) is movably connected to the threaded hole (12) on the rear wall of the mounting knife seat (8), and the screw knob (15) is movably connected to the push plate (13) through a rotating block (16) at the front end, the limiting rod (17) is fixedly connected to both sides of the front wall of the push plate (13), and a compression spring (19) is fixedly connected to the front end of the limiting rod (17), and the front end of the compression spring (19) is fixedly connected to the positioning head (20).

2. A bag making machine cutting mechanism according to claim 1, characterized in that: A plurality of adjustment limit holes (21) are respectively provided on the left and right sides of the front wall of the cutter body (6) in a vertical array.

3. The bag making machine cutting mechanism according to claim 2, characterized in that: The mounting knife seat (8) is fixedly mounted on the bottom surface of the movable plate (4), and a mounting cavity (9) is provided on the bottom surface of the mounting knife seat (8), and mutually corresponding through holes (10) are provided at the lower portion of the front and rear walls inside the mounting cavity (9), and an inner cavity (11) is further provided inside the mounting knife seat (8) and behind the mounting cavity (9), the through hole (10) is communicated with the inner cavity (11), and a threaded hole (12) is provided on the inner rear wall of the inner cavity (11).

4. The bag making machine cutting mechanism according to claim 3, characterized in that: The push plate (13) is movably installed in the inner cavity (11), and a group of left-right symmetrical limiting rods (17) are fixedly installed on the front wall of the push plate (13). The limiting rods (17) are inserted into the through hole (10) and pass through the adjustment limiting hole (21). A convex groove (14) is also provided on the rear wall of the push plate (13).

5. The bag making machine cutting mechanism according to claim 4, characterized in that: A spring groove (18) is provided on the front end wall of the limiting rod (17), and a compression spring (19) is fixedly installed at the bottom end of the spring groove (18), and a positioning head (20) is fixedly installed at the front end of the compression spring (19).

6. The bag making machine cutting mechanism according to claim 5, characterized in that: The screw knob (15) is threadedly connected to the threaded hole (12), and a rotating block (16) is fixedly mounted on the front end of the screw knob (15), and the rotating block (16) is movably mounted in the convex groove (14).

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