Cutting mechanism of bag making machine

Abstract

The utility model discloses a bag making machine cutting mechanism which comprises a cutting box and a placing table, the bottom of the placing table is fixedly connected to the bottom of the inner wall of the cutting box, a pressing assembly is arranged on the outer side of the placing table, and a cutting knife is arranged on the top of the placing table. When a cutting knife is replaced, a downward pressing column is pressed, the downward pressing column drives a downward pressing block, a first sliding block and a lifting column to move downwards, the lifting column drives an L-shaped overturning block to overturn towards the outer side, the L-shaped overturning block drives a movable plate, a second sliding block and a second sliding rail to move towards the outer side, the movable plate drives a clamping column and a reset spring to move towards the inner side, and then the cutting knife is replaced. And when the clamping columns move towards the inner side into the clamping holes, the cutting knife can be taken down to be replaced, so that the cutting device has the advantage of being convenient to replace, when the cutting knife is replaced, the pushing mechanism is pressed, the pushing mechanism drives the clamping mechanism to lose clamping and fixing of the cutting knife, then the cutting knife can be replaced, and the time for replacing the cutting knife is shortened.

Description

Technical Field

[0001] The utility model relates to the technical field of bag making machines, in particular to a cutting mechanism for a bag making machine. Background Art

[0002] Bag making machine: 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. The patent publication number is 201922123447.9, which discloses a cutting device for a bag making machine, including: a mounting frame; a connecting frame, the bottoms of the two connecting frames are respectively fixed to the two sides of the top of the mounting frame, and the top of the right side of the connecting frame is fixedly connected to a connecting frame; a muffler box, one side of the muffler box is fixed to the left side of the connecting frame, and the top of the right side of the inner wall of the muffler box is rotatably connected to a movable rod, and one end of the movable rod is fixedly connected to a rotating gear; a first bevel gear, the axis of the first bevel gear is fixed to the end of the movable rod away from the rotating gear. The utility model provides a cutting device for a bag making machine. The invention is convenient for cutting, improves the cutting quality and production efficiency, has a simple structure and is easy to use. The cutting device can well position the bag body during cutting, thereby achieving high cutting accuracy and greatly reducing the scrap rate.

[0003] The above-mentioned prior art solutions have the following defects: when cutting packaging bags, the cutting knife needs to be replaced with a new one after being used for a period of time, and the fixed cutting knife is fixed with a fixing bolt. When replacing the new cutting knife, the worker needs to use a tool to loosen the fixing bolt and remove the cutting knife, and then place the new cutting knife in a suitable position and tighten the fixing bolt before continuing to cut the packaging bag. The replacement and cutting process is time-consuming and laborious, thereby increasing the time for replacing the cutting knife. Utility Model Content

[0004] In order to solve the problems raised in the above-mentioned background technology, the purpose of the utility model is to provide a cutting mechanism for a bag making machine, which has the advantage of being easy to replace, and solves the problem that when cutting packaging bags, the cutting knife needs to be replaced with a new cutting knife after being used for a period of time, and the fixed cutting cutting knife is fixed with a fixing bolt. When replacing the new cutting knife, the worker needs to use a tool to loosen the locking bolt and then remove the cutting knife, and then place the new cutting knife in a suitable position and tighten the fixing bolt before continuing to cut the packaging bag. The replacement and cutting process is time-consuming and laborious, thereby increasing the time for replacing the cutting knife.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a cutting mechanism of a bag making machine, comprising a cutting box and a placing table, the bottom of the placing table is fixedly connected to the bottom of the inner wall of the cutting box, a pressing assembly is arranged on the outside of the placing table, a cutting knife is arranged on the top of the placing table, a mounting block is mounted on the top of the cutting knife, a mounting groove is arranged on the bottom of the mounting block, a clamping hole is arranged on the front and rear sides of the mounting groove, the number of the clamping holes is several, and the several clamping holes are distributed at equal distances, a protective block is fixedly connected to the top of the mounting block, a pushing mechanism is arranged inside the protective block, and a clamping mechanism is arranged on the front and rear sides of the pushing mechanism;

[0006] The pushing mechanism is used to move and adjust the clamping mechanism;

[0007] The clamping mechanism is used to assemble and disassemble the mounting block and the cutting knife.

[0008] As a preferred embodiment of the utility model, the pushing mechanism includes a lower pressure column and a lower pressure block, the top of the lower pressure block is fixedly connected to the bottom of the lower pressure column, the top of the lower pressure column passes through the top of the protective block, the rear side of the lower pressure block is fixedly connected with a slider 1, the right side of the slider 1 is slidably connected with a slide rail 1, the right side of the slide rail 1 is fixedly connected to the right side of the inner wall of the protective block, the left side of the lower pressure block is fixedly connected with a lifting column, the surface of the lifting column is provided with an L-shaped flip block, the number of the L-shaped flip blocks is two, and the L-shaped flip blocks are movably connected to the left and right sides of the inner wall of the protective block through a pin shaft.

[0009] As a preferred embodiment of the present invention, the clamping mechanism includes a clamping column and a return spring, the number of the clamping columns is several, and the several clamping columns are equidistantly distributed, the outer side of the clamping column is fixedly connected to a movable plate, the left and right sides of the bottom of the movable plate are fixedly connected to a slider 2, the bottom of the slider 2 is slidably connected to a slide rail 2, the bottom of the slide rail 2 is fixedly connected to the bottom of the inner wall of the mounting block, the return spring is movably sleeved on the surface of the clamping column, the outer side of the return spring is fixedly connected to the inner side of the movable plate, the inner side of the return spring is fixedly connected to the inner side of the inner wall of the mounting block, the top of the movable plate is fixedly connected to a fixed plate, the number of the fixed plates is two, and the inner side of the fixed plate is movably connected to the bottom of the outer side of the L-shaped flip block.

[0010] As a preferred embodiment of the utility model, a reinforcing sleeve is fixedly connected to the bottom of the surface of the lower pressure column, the bottom of the reinforcing sleeve is fixedly connected to the top of the lower pressure block, and the reinforcing sleeve is located inside the protective block.

[0011] As a preferred embodiment of the utility model, the surface movable sleeve of the lower pressure column is provided with a wear-resistant sleeve, the outer side of the wear-resistant sleeve is fixedly connected to the top of the protection block, and the bottom of the wear-resistant sleeve penetrates into the interior of the protection block.

[0012] As a preferred embodiment of the utility model, a lower pressure plate is fixedly installed on the top of the lower pressure column, the lower pressure plate is located on the top of the protection block, and the material of the lower pressure plate is rubber material.

[0013] As a preferred embodiment of the utility model, a limit block is fixedly installed on the left side of the surface of the lifting column, the limit block is located inside the protection block, and the shape of the limit block is cylindrical.

[0014] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0015] 1. The utility model has the advantages of easy replacement, that is, when replacing the cutting knife, the pressing column is pressed, the pressing column drives the pressing block, the slider 1 and the lifting column to move downward, the lifting column drives the L-shaped flip block to flip outward, the L-shaped flip block drives the moving plate, the slider 2 and the slide rail 2 to move outward, the moving plate drives the clamping column and the reset spring to move inward, and when the clamping column moves inward to the inside of the clamping hole, the cutting knife can be removed and replaced, thereby having the advantage of easy replacement. When replacing the cutting knife, the pushing mechanism is pressed, the pushing mechanism drives the clamping mechanism to lose the clamping fixation of the cutting knife, and the cutting knife can be replaced, thereby reducing the time for replacing the cutting knife.

[0016] 2. The utility model can control the clamping mechanism by providing a pushing mechanism, thereby avoiding the phenomenon that the clamping mechanism cannot move during use, playing a role in controlling the clamping mechanism and improving the replacement efficiency of the cutting knife. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 A three-dimensional diagram of the cutting knife of the utility model;

[0019] Figure 3 It is a three-dimensional diagram of the movable plate of the utility model;

[0020] Figure 4 It is a three-dimensional diagram of the L-shaped flip block of the utility model.

[0021] In the figure: 1. cutting box; 2. placing table; 3. clamping assembly; 4. cutting knife; 5. mounting block; 6. mounting slot; 7. snap-in hole; 8. protection block; 9. pushing mechanism; 91. lower pressure column; 92. lower pressure block; 93. slider 1; 94. slide rail 1; 95. lifting column; 96. L-shaped flip block; 10. snap-in mechanism; 101. snap-in column; 102. reset spring; 103. moving plate; 104. slider 2; 105. slide rail 2; 106. fixed plate; 11. reinforcement sleeve; 12. wear-resistant sleeve; 13. lower pressure plate; 14. limit block. DETAILED DESCRIPTION

[0022] 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. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. 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.

[0023] like Figures 1 to 4 As shown, the utility model provides a bag making machine cutting mechanism, including a cutting box 1 and a placing table 2, the bottom of the placing table 2 is fixedly connected to the bottom of the inner wall of the cutting box 1, a pressing assembly 3 is arranged on the outside of the placing table 2, a cutting knife 4 is arranged on the top of the placing table 2, a mounting block 5 is mounted on the top of the cutting knife 4, a mounting groove 6 is provided at the bottom of the mounting block 5, a clamping hole 7 is provided on the front and rear sides of the mounting groove 6, the number of the clamping holes 7 is several, and the several clamping holes 7 are distributed at equal distances, a protective block 8 is fixedly connected to the top of the mounting block 5, a pushing mechanism 9 is arranged inside the protective block 8, and a clamping mechanism 10 is arranged on the front and rear sides of the pushing mechanism 9;

[0024] The pushing mechanism 9 is used to move and adjust the clamping mechanism 10;

[0025] The clamping mechanism 10 is used to assemble and disassemble the mounting block 5 and the cutting knife 4 .

[0026] refer to Figure 4 The pushing mechanism 9 includes a pressing column 91 and a pressing block 92. The top of the pressing block 92 is fixedly connected to the bottom of the pressing column 91. The top of the pressing column 91 passes through the top of the protective block 8. The rear side of the pressing block 92 is fixedly connected with a slider 93. The right side of the slider 93 is slidably connected with a slide rail 94. The right side of the slide rail 94 is fixedly connected to the right side of the inner wall of the protective block 8. The left side of the pressing block 92 is fixedly connected with a lifting column 95. The surface of the lifting column 95 is provided with an L-shaped flip block 96. There are two L-shaped flip blocks 96. The L-shaped flip blocks 96 are movably connected to the left and right sides of the inner wall of the protective block 8 through pins.

[0027] As a technical optimization solution of the utility model, by setting a pushing mechanism 9, the clamping mechanism 10 can be moved and adjusted, avoiding the phenomenon that the clamping mechanism 10 cannot move during use, playing a role in controlling the clamping mechanism 10, and improving the replacement efficiency of the cutting knife 4.

[0028] refer to Figure 3The clamping mechanism 10 includes a clamping column 101 and a return spring 102. The number of the clamping columns 101 is several, and the several clamping columns 101 are equidistantly distributed. The outer side of the clamping column 101 is fixedly connected to a moving plate 103. The left and right sides of the bottom of the moving plate 103 are fixedly connected to a slider 104. The bottom of the slider 104 is slidably connected to a slide rail 105. The bottom of the slide rail 105 is fixedly connected to the bottom of the inner wall of the mounting block 5. The return spring 102 is movably sleeved on the surface of the clamping column 101. The outer side of the return spring 102 is fixedly connected to the inner side of the moving plate 103. The inner side of the return spring 102 is fixedly connected to the inner side of the inner wall of the mounting block 5. The top of the moving plate 103 is fixedly connected to a fixed plate 106. There are two fixed plates 106. The inner side of the fixed plate 106 is movably connected to the bottom of the outer side of the L-shaped flip block 96.

[0029] As a technical optimization solution of the utility model, by setting a clamping mechanism 10, the mounting block 5 and the cutting knife 4 can be clamped and fixed, avoiding the cutting knife 4 from being disassembled and assembled for a long time, resulting in a decrease in cutting efficiency, and improving the cutting replacement efficiency.

[0030] refer to Figure 4 A reinforcing sleeve 11 is fixedly connected to the bottom of the surface of the lower pressure column 91 , and the bottom of the reinforcing sleeve 11 is fixedly connected to the top of the lower pressure block 92 . The reinforcing sleeve 11 is located inside the protective block 8 .

[0031] As a technical optimization scheme of the utility model, by setting a reinforcement sleeve 11, the force-bearing area between the lower pressure column 91 and the lower pressure block 92 can be increased, thereby avoiding the situation where the force-bearing area between the lower pressure column 91 and the lower pressure block 92 is small, thereby increasing the force-bearing area and improving the coordination effect between the lower pressure column 91 and the lower pressure block 92.

[0032] refer to Figure 4 A wear-resistant sleeve 12 is provided on the surface of the lower pressure column 91 . The outer side of the wear-resistant sleeve 12 is fixedly connected to the top of the protection block 8 , and the bottom of the wear-resistant sleeve 12 penetrates into the interior of the protection block 8 .

[0033] As a technical optimization solution of the utility model, by providing a wear-resistant sleeve 12, the lower pressure column 91 can be protected, thereby avoiding wear of the lower pressure column 91 during movement, resulting in damage to the lower pressure column 91, and improving the durability of the lower pressure column 91.

[0034] refer to Figure 4 A lower pressure plate 13 is fixedly installed on the top of the lower pressure column 91. The lower pressure plate 13 is located on the top of the protection block 8, and the material of the lower pressure plate 13 is rubber.

[0035] As a technical optimization solution of the utility model, by setting the lower pressure plate 13, the contact area for pressing the lower pressure column 91 can be increased, avoiding the difficulty in pressing the lower pressure column 91, playing a role in increasing the contact area, and improving the usability of the lower pressure column 91.

[0036] refer to Figure 4 A limit block 14 is fixedly installed on the left side of the surface of the lifting column 95. The limit block 14 is located inside the protection block 8 and has a cylindrical shape.

[0037] As a technical optimization solution of the utility model, by setting a limit block 14, the L-shaped flip block 96 can be limited, avoiding the L-shaped flip block 96 from being offset, playing a limiting role, and improving the operating stability of the L-shaped flip block 96.

[0038] The working principle and use process of the utility model are as follows: during use, when the cutting knife 4 is replaced, the pressing column 91 is pressed, and the pressing column 91 drives the pressing block 92, the slider 1 93 and the lifting column 95 to move downward, and the lifting column 95 drives the L-shaped flip block 96 to flip outward, and the L-shaped flip block 96 drives the moving plate 103, the slider 104 and the slide rail 105 to move outward, and the moving plate 103 drives the clamping column 101 and the reset spring 102 to move inward, and when the clamping column 101 moves inward to the inside of the clamping hole 7, the cutting knife 4 can be removed for replacement, thereby having the advantage of easy replacement.

[0039] In summary, the cutting mechanism of the bag making machine, through the coordinated use of the cutting box 1, the placement table 2, the clamping assembly 3, the cutting knife 4, the mounting block 5, the mounting groove 6, the clamping hole 7, the protection block 8, the pushing mechanism 9 and the clamping mechanism 10, solves the problem that when cutting the packaging bag, the cutting knife needs to be replaced with a new one after being used for a period of time, and the fixed cutting cutting knife is fixed with a fixing bolt. When replacing the new cutting knife, the worker needs to use a tool to loosen the fixing bolt and then remove the cutting knife. After placing the new cutting knife in a suitable position, the fixing bolt is tightened before continuing to cut the packaging bag. The replacement and cutting process is time-consuming and laborious, thereby increasing the time for replacing the cutting knife.

[0040] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0041] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A bag-making machine cutting mechanism, comprising a cutting box (1) and a placing table (2), characterized in that: The bottom of the placing table (2) is fixedly connected to the bottom of the inner wall of the cutting box (1); a clamping assembly (3) is arranged on the outer side of the placing table (2); a cutting knife (4) is arranged on the top of the placing table (2); a mounting block (5) is mounted on the top of the cutting knife (4); a mounting groove (6) is provided at the bottom of the mounting block (5); a clamping hole (7) is provided on the front and rear sides of the mounting groove (6); the number of the clamping holes (7) is several, and the several clamping holes (7) are distributed at equal distances; a protective block (8) is fixedly connected to the top of the mounting block (5); a pushing mechanism (9) is arranged inside the protective block (8); a clamping mechanism (10) is arranged on the front and rear sides of the pushing mechanism (9); The pushing mechanism (9) is used to move and adjust the clamping mechanism (10); The clamping mechanism (10) is used to assemble and disassemble the mounting block (5) and the cutting knife (4).

2. A bag making machine cutting mechanism according to claim 1, characterized in that: The pushing mechanism (9) comprises a lower pressing column (91) and a lower pressing block (92), the top of the lower pressing block (92) is fixedly connected to the bottom of the lower pressing column (91), the top of the lower pressing column (91) penetrates to the top of the protection block (8), the rear side of the lower pressing block (92) is fixedly connected with a slider (93), the right side of the slider (93) is slidably connected with a slide rail (94), the right side of the slide rail (94) is fixedly connected to the right side of the inner wall of the protection block (8), the left side of the lower pressing block (92) is fixedly connected with a lifting column (95), the surface of the lifting column (95) is sleeved with an L-shaped flip block (96), the number of the L-shaped flip blocks (96) is two, and the L-shaped flip blocks (96) are movably connected to the left and right sides of the inner wall of the protection block (8) through a pin shaft.

3. A bag making machine cutting mechanism according to claim 2, characterized in that: The clamping mechanism (10) comprises a clamping column (101) and a return spring (102). The number of the clamping columns (101) is several, and the several clamping columns (101) are distributed at equal distances. The outer side of the clamping column (101) is fixedly connected to a moving plate (103). The left and right sides of the bottom of the moving plate (103) are fixedly connected to a second sliding block (104). The bottom of the second sliding block (104) is slidably connected to a second sliding rail (105). The bottom of the second sliding rail (105) is fixedly connected to the mounting block. (5) The bottom of the inner wall, the return spring (102) is movably mounted on the surface of the clamping column (101), the outer side of the return spring (102) is fixedly connected to the inner side of the movable plate (103), the inner side of the return spring (102) is fixedly connected to the inner side of the inner wall of the mounting block (5), the top of the movable plate (103) is fixedly connected with a fixed plate (106), the number of the fixed plates (106) is two, and the inner side of the fixed plate (106) is movably connected to the bottom of the outer side of the L-shaped flip block (96).

4. A bag making machine cutting mechanism according to claim 2, characterized in that: A reinforcing sleeve (11) is fixedly connected to the bottom of the surface of the lower pressure column (91), the bottom of the reinforcing sleeve (11) is fixedly connected to the top of the lower pressure block (92), and the reinforcing sleeve (11) is located inside the protective block (8).

5. The cutting mechanism of a bag making machine according to claim 2, characterized in that: The surface movable sleeve of the lower pressure column (91) is provided with a wear-resistant sleeve (12), the outer side of the wear-resistant sleeve (12) is fixedly connected to the top of the protection block (8), and the bottom of the wear-resistant sleeve (12) penetrates into the interior of the protection block (8).

6. A bag making machine cutting mechanism according to claim 2, characterized in that: A lower pressure plate (13) is fixedly mounted on the top of the lower pressure column (91), and the lower pressure plate (13) is located on the top of the protection block (8). The material of the lower pressure plate (13) is rubber.

7. A bag making machine cutting mechanism according to claim 2, characterized in that: A limit block (14) is fixedly installed on the left side of the surface of the lifting column (95), the limit block (14) is located inside the protection block (8), and the shape of the limit block (14) is cylindrical.

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