Edge folding mechanism for bag making machine

Abstract

The utility model discloses an edge folding mechanism for a bag making machine, and relates to the field of bag making machine devices. The edge folding mechanism for the bag making machine comprises a machining platform arranged in the bag making machine, an edge folding piece is arranged at the top of the machining platform, a lifting plate is arranged in the edge folding piece, the side wall of the lifting plate is rotationally connected with a vertical plate, and the vertical plate is used for lifting the lifting plate; rolling shafts are arranged at the top of the machining platform and distributed on the two sides of the edge folding piece, and round blocks are arranged on the two sides of the rolling shafts. According to the edge folding mechanism for the bag making machine, the lifting plate capable of being lifted is arranged in the edge folding piece on the bag making machine, edge folding can be conveniently conducted on material bags with different thicknesses, and the situation that the material bags are curled and loosened when the thin material bags are subjected to edge folding is avoided; and meanwhile, the rolling shaft convenient to move is arranged, the material bag can be limited, and the situation that the material bag is easily subjected to extrusion force of the edge folding piece, so that the material bag is jacked up unsmoothly, and follow-up machining is affected is avoided.

Description

Technical Field

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

[0002] A bag making machine is a machine used to make various plastic packaging bags or packaging bags made of other materials.

[0003] Currently, the height dimension inside the hemming component on the existing bag making machine is unified. When a thinner material bag passes through, it is easy to cause the material bag to curl and loosen, affecting subsequent heat sealing. Secondly, the material bag is easily subjected to the extrusion force of the hemming component, resulting in the problem that the material bag is lifted unevenly.

[0004] The reason for this problem is that when the existing bag making machine performs hemming processing on the material bag, the material bag passes through the inside of the hemming component for pressing and folding. Since the height dimension inside the hemming component is unified, when a thinner material bag passes through the hemming component, it is easy to cause the material bag to curl and loosen, affecting subsequent heat sealing. Secondly, when the material bag passes through the hemming component, it is easily subjected to the extrusion force of the hemming component, resulting in the situation that the material bag is lifted unevenly, affecting subsequent processing. In view of the deficiencies of the existing technology, we propose a hemming mechanism for a bag making machine to solve the above problems. Content of the Utility Model

[0005] In view of the deficiencies of the existing technology, the utility model provides a hemming mechanism for a bag making machine, which solves the problems that the height dimension inside the hemming component on the existing bag making machine is unified. When a thinner material bag passes through, it is easy to cause the material bag to curl and loosen, affecting subsequent heat sealing. Secondly, the material bag is easily subjected to the extrusion force of the hemming component, resulting in the problem that the material bag is lifted unevenly.

[0006] To achieve the above objectives, the utility model is realized through the following technical solutions: A hemming mechanism for a bag making machine includes a processing platform arranged inside the bag making machine. A hemming component is arranged on the top of the processing platform, and an adjusting unit is arranged inside the hemming component;

[0007] The adjusting unit includes a lifting plate arranged inside the hemming component. The lifting plate is used to adjust the height inside the hemming component. A vertical plate is rotatably connected to the side wall of the lifting plate, and the vertical plate is used to lift the lifting plate;

[0008] A leveling unit is arranged on the top of the processing platform;

[0009] The leveling unit includes rollers arranged on the top of the processing platform. The rollers are distributed on both sides of the hemming component. The rollers are used to limit the material bag, and round blocks are arranged on both sides of the rollers. The round blocks are used to move the rollers.

[0010] Preferably, one end of the lifting plate away from the vertical plate is rotatably connected to the inside of the flanging member. A chute is provided on the side wall of the flanging member, and a slider is rotatably connected to the side wall of the vertical plate. The slider is slidably connected to the inside of the chute.

[0011] Preferably, the adjusting unit further includes a lead screw and a movable rod disposed inside the flanging member. The lead screw and the movable rod are used to move the vertical plate.

[0012] Preferably, the lead screw penetrates through the side wall of the flanging member, and a cylinder is threadedly sleeved on the outer peripheral wall of the lead screw. The cylinder is slidably connected to the inside of the flanging member;

[0013] Both ends of the movable rod are respectively rotatably connected to the side walls of the cylinder and the slider.

[0014] Preferably, a bidirectional screw is rotatably connected to the inside of the processing platform. A connecting member is fixedly connected to the top of the lifting plate. The connecting member is slidably connected to the outer peripheral wall of the bidirectional screw. The bidirectional screw is used to move the lifting plate.

[0015] Preferably, brackets are rotatably connected to both sides of the roller. Concave blocks are fixedly connected to the ends of the brackets. The concave blocks are slidably connected to the inside of the processing platform;

[0016] The round block penetrates through the side wall of the processing platform, and a toothed plate is fixedly connected to the end of the round block. The toothed plate is clamped inside the concave block.

[0017] Preferably, the toothed plate is disposed inside the processing platform. A spring is fixedly connected to the side wall of the toothed plate. The end of the spring is fixedly connected to the inside of the processing platform.

[0018] The present utility model discloses a flanging mechanism for a bag making machine, and the beneficial effects thereof are as follows: For the flanging mechanism for a bag making machine, by providing a lifting plate inside the flanging member on the bag making machine, the lifting plate can be lifted by rotating the lead screw, which is convenient for flanging material bags of different thicknesses, and avoids the situation that the thinner material bag will curl and loosen during flanging; at the same time, by providing a roller that is easy to move, the middle part of the material bag can be pressed and limited, avoiding the situation that the material bag is easily subjected to extrusion forces on both sides when entering the flanging member for flanging, resulting in the material bag being lifted unevenly and affecting subsequent processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained according to these drawings.

[0020] Figure 1 It is a schematic structural diagram of the processing platform of the present utility model;

[0021] Figure 2 It is a schematic structural diagram of the bidirectional screw of the present utility model;

[0022] Figure 3 It is a schematic structural diagram of the hemming part of the present utility model;

[0023] Figure 4 It is a schematic structural diagram of the vertical plate of the present utility model;

[0024] Figure 5 It is a schematic structural diagram of the bracket and the round block of the present utility model.

[0025] In the figure: 1. Processing platform; 2. Hemming part; 201. Connecting piece; 202. Bidirectional screw; 203. Chute; 3. Lifting plate; 301. Vertical plate; 302. Lead screw; 303. Slide block; 304. Movable rod; 305. Cylinder; 4. Roller; 401. Bracket; 402. Concave block; 5. Round block; 501. Tooth plate; 502. Spring. Specific embodiments

[0026] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model are described clearly and completely. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0027] By providing a hemming mechanism for a bag making machine in the embodiments of the present application, the problems that the height dimensions inside the hemming assembly on the current bag making machine are unified, when a thinner material bag passes through, it is easy to cause the material bag to curl and loosen, affecting subsequent heat sealing, and secondly, the material bag is easily subjected to the extrusion force of the hemming assembly, resulting in the material bag being lifted unevenly are solved.

[0028] To better understand the above technical solutions, the above technical solutions will be described in detail below in conjunction with the accompanying drawings of the specification and specific embodiments.

[0029] The embodiments of the present utility model disclose a hemming mechanism for a bag making machine.

[0030] According to the attached Figures 1-5 As shown, a hemming mechanism for a bag making machine includes a processing platform 1 arranged inside the bag making machine, a hemming part 2 is arranged on the top of the processing platform 1, and an adjusting unit is arranged inside the hemming part 2;

[0031] The adjusting unit includes a lifting plate 3 disposed inside the hemming member 2. The lifting plate 3 is used to adjust the height inside the hemming member 2. A vertical plate 301 is rotatably connected to the side wall of the lifting plate 3, and the vertical plate 301 is used to lift the lifting plate 3;

[0032] A leveling unit is provided on the top of the processing platform 1;

[0033] The leveling unit includes rollers 4 provided on the top of the processing platform 1. The rollers 4 are distributed on both sides of the hemming member 2. The rollers 4 are used to limit the material bag. Circular blocks 5 are provided on both sides of the rollers 4, and the circular blocks 5 are used to move the rollers 4. By the rollers 4, the middle part of the material bag can be pressed and limited, avoiding the situation that when the material bag enters the hemming member 2 for hemming, it is easily subjected to the squeezing force on both sides, causing the material bag to be lifted unevenly and affecting the subsequent processing. At the same time, the rollers 4 can rotate following the transmission of the material bag, avoiding the situation that the rollers 4 press and fix the material bag, affecting the transmission of the material bag.

[0034] One end of the lifting plate 3 away from the vertical plate 301 is rotatably connected to the inside of the side of the hemming member 2 with a larger opening. A chute 203 is provided on the side wall of the hemming member 2. A slider 303 is rotatably connected to the side wall of the vertical plate 301, and the slider 303 is slidably connected to the inside of the chute 203.

[0035] The adjusting unit further includes a lead screw 302 and a movable rod 304 disposed inside the hemming member 2. The lead screw 302 and the movable rod 304 are used to move the vertical plate 301.

[0036] The lead screw 302 penetrates through the side wall of the hemming member 2. A cylinder 305 is threadedly sleeved on the outer peripheral wall of the lead screw 302, and the cylinder 305 is slidably connected to the inside of the hemming member 2;

[0037] Both ends of the movable rod 304 are respectively rotatably connected to the side walls of the cylinder 305 and the slider 303. By rotating the lead screw 302, the cylinder 305 can be driven to slidably connect to the outer peripheral wall of the lead screw 302. At this time, the cylinder 305 will drive the movable rod 304 to rotate, and the movable rod 304 will push the two groups of sliders 303 and the vertical plate 301 to slide to both sides. At this time, the vertical plate 301 will rotate and push the lifting plate 3 upward, and the height inside the hemming member 2 can be adjusted to facilitate hemming of material bags with different thicknesses.

[0038] A bidirectional screw 202 is rotatably connected to the inside of the processing platform 1. A connecting member 201 is fixedly connected to the top of the lifting plate 3, and the connecting member 201 is slidably connected to the outer peripheral wall of the bidirectional screw 202. The bidirectional screw 202 is used to move the lifting plate 3. By rotating the bidirectional screw 202, the connecting member 201 and the lifting plate 3 can be driven to move, facilitating adjustment of the distance between the lifting plates 3 according to material bags with different widths.

[0039] On both sides of the roller 4, there are brackets 401 rotatably connected. At the end of the bracket 401, there is a concave block 402 fixedly connected. The concave block 402 is slidably connected inside the processing platform 1;

[0040] The round block 5 penetrates the side wall of the processing platform 1. At the end of the round block 5, there is a toothed plate 501 fixedly connected. The toothed plate 501 is clamped inside the concave block 402.

[0041] The toothed plate 501 is arranged inside the processing platform 1. On the side wall of the toothed plate 501, there is a spring 502 fixedly connected. The end of the spring 502 is fixedly connected inside the processing platform 1. By pressing the round block 5 inward, the toothed plate 501 can be driven to move inward until the toothed plate 501 disengages from the concave block 402. At this time, the roller 4 can be moved downward until the roller 4 presses on the top of the plastic bag. Then, release the round block 5. Due to the elastic force of the spring 502, the toothed plate 501 and the round block 5 will be ejected for reset. At this time, the toothed plate 501 will be inserted into the concave block 402 for fixation.

[0042] When the present utility model is in use, first rotate the lead screw 302 according to the thickness of the plastic bag to be processed. The lead screw 302 will drive the cylinder 305 and the movable rod 304 to move. At this time, the movable rod 304 will push the slider 303 and the vertical plate 301 to slide to both sides. At this time, the vertical plate 301 will rotate and push the lifting plate 3 upward. Secondly, press the round block 5 inward, which can drive the toothed plate 501 to move inward until the toothed plate 501 disengages from the concave block 402. At this time, the roller 4 can be moved downward until the roller 4 can press and limit on the top of the plastic bag. Finally, the plastic bag will be transported to the bag-making machine for multiple processes. When the plastic bag is transported to the processing platform 1 on the hemming unit, both sides of the plastic bag will pass through the hemming member 2 for curling and folding, and will be fixed by subsequent heat melting. That's it.

[0043] The above shows and describes the basic principles, main features and advantages of the present utility model. Those skilled in the art of this industry should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A hemming mechanism for a bag-making machine, comprising a processing platform (1) arranged inside the bag-making machine, and a hemming member (2) is arranged on the top of the processing platform (1), characterized in that, An adjustment unit is provided inside the hemming member (2); The adjustment unit includes a lifting plate (3) provided inside the hemming member (2). The lifting plate (3) is used to adjust the height inside the hemming member (2). A vertical plate (301) is rotatably connected to the side wall of the lifting plate (3), and the vertical plate (301) is used to lift the lifting plate (3); A leveling unit is provided on the top of the processing platform (1); The leveling unit includes rollers (4) provided on the top of the processing platform (1). The rollers (4) are distributed on both sides of the hemming member (2). The rollers (4) are used to limit the material bag. Circular blocks (5) are provided on both sides of the rollers (4), and the circular blocks (5) are used to move the rollers (4).

2. The hemming mechanism for a bag making machine according to claim 1, wherein: One end of the lifting plate (3) away from the vertical plate (301) is rotatably connected inside the hemming member (2). A chute (203) is provided on the side wall of the hemming member (2). A slider (303) is rotatably connected to the side wall of the vertical plate (301), and the slider (303) is slidably connected inside the chute (203).

3. The hemming mechanism for a bag-making machine according to claim 1, characterized in that: The adjustment unit further includes a lead screw (302) and a movable rod (304) provided inside the hemming member (2). The lead screw (302) and the movable rod (304) are used to move the vertical plate (301).

4. The hemming mechanism for a bag making machine according to claim 3, characterized in that: The lead screw (302) penetrates through the side wall of the hemming member (2). A cylinder (305) is threadedly sleeved on the outer peripheral wall of the lead screw (302), and the cylinder (305) is slidably connected inside the hemming member (2); Both ends of the movable rod (304) are respectively rotatably connected to the side walls of the cylinder (305) and the slider (303).

5. The hemming mechanism for a bag-making machine according to claim 1, characterized in that: A bidirectional screw (202) is rotatably connected to the inside of the processing platform (1). A connecting member (201) is fixedly connected to the top of the lifting plate (3), and the connecting member (201) is slidably connected to the outer peripheral wall of the bidirectional screw (202). The bidirectional screw (202) is used to move the lifting plate (3).

6. The hemming mechanism for a bag making machine according to claim 1, characterized in that: Both sides of the roller (4) are rotatably connected to a bracket (401). A concave block (402) is fixedly connected to the end of the bracket (401), and the concave block (402) is slidably connected to the inside of the processing platform (1); The circular block (5) penetrates through the side wall of the processing platform (1). A toothed plate (501) is fixedly connected to the end of the circular block (5), and the toothed plate (501) is clamped inside the concave block (402).

7. The hemming mechanism for a bag making machine according to claim 6, characterized in that: The toothed plate (501) is arranged inside the processing platform (1). A spring (502) is fixedly connected to the side wall of the toothed plate (501), and the end of the spring (502) is fixedly connected to the inside of the processing platform (1).

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