Tension roller for bag making machine

Abstract

The utility model relates to the technical field of tensioning roller, specifically disclose a kind of tensioning roller for bag making machine, including frame and tensioning roller body, the symmetric conveying roller of relative symmetry is rotationally arranged in the frame, the symmetric movable mouth of relative symmetry is opened in the frame inner wall, adjusting block is slidably arranged on the movable mouth, adjusting block is uniformly provided with box, the compression spring is uniformly arranged in the box, movable rod is vertically slidably arranged on the box, the compression spring is held between the box and movable rod, the mounting block is fixedly installed in the top end of movable rod, the tensioning roller body is rotationally arranged between two groups of mounting blocks, the frame top is fixedly installed with support plate, the cylinder is fixedly installed in the middle of support plate, the tensioning roller for bag making machine can change according to the conveying tension of bag body, self-adaptingly adjust the tension of bag body by tensioning roller body, maintain bag body stable conveying when continuous production conveying, reduce the problems such as wrinkle, deviation, and strong practicability.

Description

Technical Field

[0001] This utility model belongs to the field of tension roller technology, and in particular relates to a tension roller for a bag making machine. Background Technology

[0002] A bag-making machine is a mechanical device used for the automated production of plastic bags. It processes plastic film into bags of various specifications through heat sealing, cutting and other processes. The tension roller is a key component of the bag-making machine. It adjusts the tension of the packaging material to ensure that the material maintains appropriate tension during the conveying process, thereby making the bag-making process more stable and effectively improving the quality and efficiency of bag making.

[0003] Currently, traditional bag making machine tension rollers mostly adopt fixed structures or simple mechanical adjustment methods, which are difficult to adaptively adjust according to changes in bag conveying tension during continuous bag production and conveying. This easily leads to problems such as bag wrinkles and deviation. Therefore, an improvement is needed. To this end, a tension roller for bag making machines is proposed. Utility Model Content

[0004] The purpose of this invention is to provide a tension roller for a bag making machine to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a tension roller for a bag-making machine, comprising a frame and a tension roller body, wherein a symmetrical conveying roller is rotatably arranged inside the frame, and a symmetrical movable opening is provided on the inner wall of the frame, wherein an adjusting block is slidably arranged on each movable opening, wherein a box is provided on each adjusting block, wherein a holding spring is provided inside each box, wherein a movable rod is vertically slidably arranged on each box, wherein the holding spring is pressed between the box and the movable rod, wherein an mounting block is fixedly installed at the top of each movable rod, wherein the tension roller body is rotatably arranged between two sets of mounting blocks, wherein a support plate is fixedly installed on the top of the frame, wherein a cylinder is fixedly installed in the middle of the support plate, wherein a horizontal plate is provided below the support plate, wherein the end of the cylinder output shaft is fixedly installed in the middle of the horizontal plate, wherein vertical rods are fixedly installed at both ends of the horizontal plate, wherein the vertical rods are slidably arranged on the frame, and wherein the bottom ends of the vertical rods are fixedly installed with the adjusting blocks respectively.

[0006] As a further description of the above solution: by setting up the frame, tension roller body, conveying roller, movable port, adjusting block, box, holding spring, movable rod, mounting block, support plate, cylinder, horizontal plate, and vertical rod in coordination, the tension of the tension roller body on the bag can be adaptively adjusted according to the change of the conveying tension of the bag, maintaining stable conveying of the bag during continuous production, reducing problems such as wrinkles and deviation, and is highly practical.

[0007] Preferably, the tension roller body is disposed between the two sets of conveyor rollers, and the height of the two sets of conveyor rollers is higher than the height of the tension roller body.

[0008] As a further description of the above solution: it can ensure the stability of the bag during the transportation process.

[0009] Preferably, the inner wall of the frame is provided with a scale on the side of the movable opening.

[0010] As a further description of the above scheme: the inner wall of the frame is provided with a scale on the side of the movable opening, which makes it easy to observe the height adjustment of the tension roller body.

[0011] Preferably, the size of the movable rod is adapted to the inner diameter of the box.

[0012] As a further description of the above solution: the size of the movable rod is adapted to the inner diameter of the box, which can ensure the stability of the tension roller body during the adaptive adjustment process.

[0013] Preferably, the adjusting block has an opening, the size of which is adapted to the size of the box.

[0014] As a further description of the above solution: the adjusting block has an opening, the size of which is adapted to the size of the box, which facilitates easy disassembly and assembly of the tension roller body, thereby facilitating the replacement of tension roller bodies of different sizes and improving the applicability of the device.

[0015] Preferably, the adjusting block has an installation port on the side of the socket, a limit spring is provided in the installation port, a limit block is slidably provided on the installation port, the limit spring is pressed between the adjusting block and the limit block, and the side of the limit block away from the spring is set as an arc surface.

[0016] As a further description of the above solution: the installation port, the limit spring, and the cooperation between the limit blocks can ensure the stability of the tension roller body during installation and tensioning.

[0017] In summary, compared with the prior art, the beneficial effects of this utility model are: by setting up a frame, tension roller body, conveying roller, movable opening, adjusting block, box body, pressure spring, movable rod, mounting block, support plate, cylinder, horizontal plate, and vertical rod to work together, the tension of the tension roller body on the bag body can be adaptively adjusted according to the change of conveying tension of the bag body, maintaining stable conveying of the bag body during continuous production and reducing problems such as wrinkles and deviation, and it is highly practical. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a structural diagram of the frame and movable opening of this utility model;

[0020] Figure 3This is a structural diagram of the cylinder, horizontal plate, vertical rod, adjusting block, and tension roller body of this utility model;

[0021] Figure 4 The present invention includes a structural diagram of the adjusting block, the box body, the movable rod, the mounting block, and the tension roller body.

[0022] Figure 5 This is a side sectional view of the box body of this utility model;

[0023] Figure 6 This is a top sectional view of the adjusting block of this utility model;

[0024] Figure 7 This is a top view of the structural structure of this utility model.

[0025] Legend:

[0026] 1. Frame; 2. Tensioning roller body; 3. Conveyor roller; 4. Movable opening; 5. Adjusting block; 6. Box body; 7. Holding spring; 8. Movable rod; 9. Mounting block; 10. Support plate; 11. Cylinder; 12. Horizontal plate; 13. Vertical rod; 14. Insertion port; 15. Mounting port; 16. Limiting spring; 17. Limiting block. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0028] Please see Figure 1-7 This utility model provides a technical solution:

[0029] A tension roller for a bag-making machine includes a frame 1 and a tension roller body 2. A symmetrically arranged conveyor roller 3 is rotatably mounted inside the frame 1. Symmetrically arranged movable openings 4 are formed on the inner wall of the frame 1. Adjusting blocks 5 are slidably mounted on each movable opening 4. A housing 6 is mounted on each adjusting block 5. A holding spring 7 is installed inside each housing 6. A movable rod 8 is vertically slidably mounted on each housing 6. The holding spring 7 presses against the housing 6 and the movable rod 8. The top of each movable rod 8... The tension roller body 2 is rotatably mounted between two sets of mounting blocks 9 and is fixedly installed with mounting blocks 9. A support plate 10 is fixedly installed on the top of the frame 1. A cylinder 11 is fixedly installed in the middle of the support plate 10. A horizontal plate 12 is provided below the support plate 10. The output shaft end of the cylinder 11 is fixedly installed in the middle of the horizontal plate 12. Vertical rods 13 are fixedly installed at both ends of the horizontal plate 12. The vertical rods 13 are slidably mounted on the frame 1. The bottom ends of the vertical rods 13 are fixedly installed with adjusting blocks 5 respectively.

[0030] In use, the entire device is fixedly installed on the side of the bag making machine by the frame 1. Two sets of conveying rollers 3 are used to convey the bag body, and the tensioning roller body 2 is used to tension the bag body during the conveying process.

[0031] When the tension changes during bag conveying, the pressure spring 7 inside the box 6 will push the movable rod 8 to slide vertically on the box 6. Since the top of the movable rod 8 is fixedly installed with the mounting block 9, and the tension roller body 2 is rotatably set between the two sets of mounting blocks 9, the sliding of the movable rod 8 will drive the mounting block 9 and the tension roller body 2 to move up and down, so that the tension roller body 2 is in close contact with the bag during the conveying process, ensuring the stable conveying of the bag.

[0032] When the bag tension changes significantly and the holding spring 7 alone cannot meet the adjustment requirements, the cylinder 11 in the middle of the support plate 10 is activated. Its output shaft drives the horizontal plate 12 to move up and down. The horizontal plate 12 drives the adjusting block 5 to slide on the movable opening 4 through the vertical rod 13. The adjusting block 5 then drives the tension roller body 2 to move up and down further through the box 6, the movable rod 8, and the mounting block 9. Thus, according to the change in the conveying tension of the bag, the tension of the tension roller body 2 on the bag is adaptively adjusted. During continuous production, the bag is stably conveyed, reducing problems such as wrinkles and deviation. It is highly practical.

[0033] The tension roller body 2 is positioned between the two sets of conveyor rollers 3, and the height of the two sets of conveyor rollers 3 is higher than the height of the tension roller body 2;

[0034] The tension roller body 2 is positioned between two sets of conveyor rollers 3, and the height of the two sets of conveyor rollers 3 is higher than the height of the tension roller body 2. During the bag conveying process, the bag first passes through one set of conveyor rollers 3, then around the tension roller body 2, and finally passes through the other set of conveyor rollers 3. Since the height of the conveyor rollers 3 is higher than that of the tension roller body 2, the bag will form a reasonable arc during conveying, so that the bag can be subjected to uniform tension force during the conveying process, avoiding shaking or deviation caused by uneven local force, thereby ensuring the stability of the bag during the conveying process.

[0035] The inner wall of frame 1 is marked with graduations on the side of the movable opening 4;

[0036] By observing the position of the adjustment block 5 corresponding to the scale on the side of the movable opening 4, the staff can intuitively understand the height of the tension roller body 2. This makes it easier to observe the height of the tension roller body 2 and thus more accurately control the position of the tension roller body 2 to meet the stable conveying of the bag under different tension requirements.

[0037] The dimensions of the movable rod 8 are compatible with the inner diameter of the box body 6;

[0038] The size of the movable rod 8 is adapted to the inner diameter of the box body 6. When the movable rod 8 slides vertically on the box body 6, the movable rod 8 will not wobble or deviate on the box body 6, thereby ensuring the stability of the tension roller body 2 during the adaptive adjustment process, so that the tension roller body 2 can accurately apply appropriate tension to the bag and maintain the stable conveying of the bag.

[0039] The adjusting block 5 has a socket 14, the size of which is adapted to the size of the box body 6;

[0040] When it is necessary to replace the tension roller body 2 of a different size, the operator can pull the box 6 out of the insertion port 14 of the adjusting block 5. At this time, the box 6, along with the movable rod 8, the mounting block 9, and the tension roller body 2, will separate from the adjusting block 5. Then, select a tension roller body 2 of a suitable size and insert its corresponding box 6 into the insertion port 14 of the adjusting block 5. Since the size of the insertion port 14 matches the size of the box 6, the box 6 can be securely installed on the adjusting block 5, which facilitates easy disassembly and assembly of the tension roller body 2, thereby facilitating the replacement of tension roller bodies 2 of different sizes and improving the applicability of the device.

[0041] The adjusting block 5 has an installation port 15 on the side of the insertion port 14. A limit spring 16 is provided in the installation port 15. A limit block 17 is slidably provided on the installation port 15. The limit spring 16 is pressed between the adjusting block 5 and the limit block 17. The side of the limit block 17 away from the spring is set as an arc surface.

[0042] When the box body 6 is inserted into the insertion port 14 of the adjusting block 5, the edge of the box body 6 will press against the arc surface of the limiting block 17, causing the limiting block 17 to slide into the mounting port 15 against the elastic force of the limiting spring 16. When the box body 6 is fully inserted into the insertion port 14, the limiting block 17 pops out under the action of the limiting spring 16, locking the box body 6, thereby ensuring the stability of the box body 6 on the adjusting block 5, effectively preventing the box body 6 from coming out of the insertion port 14, ensuring the stability of the tensioning roller body 2 during the tensioning process, and thus maintaining the stable conveying of the bag.

[0043] Working principle:

[0044] In use, the entire device is fixedly installed on the side of the bag making machine by the frame 1. Two sets of conveying rollers 3 are used to convey the bag body, and the tensioning roller body 2 is used to tension the bag body during the conveying process.

[0045] When the tension changes during bag conveying, the pressure spring 7 inside the box 6 will push the movable rod 8 to slide vertically on the box 6. Since the top of the movable rod 8 is fixedly installed with the mounting block 9, and the tension roller body 2 is rotatably set between the two sets of mounting blocks 9, the sliding of the movable rod 8 will drive the mounting block 9 and the tension roller body 2 to move up and down, so that the tension roller body 2 is in close contact with the bag during the conveying process, ensuring the stable conveying of the bag.

[0046] When the bag tension changes significantly and the holding spring 7 alone cannot meet the adjustment requirements, the cylinder 11 in the middle of the support plate 10 is activated. Its output shaft drives the horizontal plate 12 to move up and down. The horizontal plate 12 drives the adjusting block 5 to slide on the movable opening 4 through the vertical rod 13. The adjusting block 5 then drives the tension roller body 2 to move up and down further through the box 6, the movable rod 8, and the mounting block 9. Thus, according to the change in the conveying tension of the bag, the tension of the tension roller body 2 on the bag is adaptively adjusted. During continuous production conveying, the bag is stably conveyed, reducing problems such as wrinkles and deviation. It is highly practical.

[0047] in,

[0048] The tension roller body 2 is positioned between two sets of conveying rollers 3, and the height of the two sets of conveying rollers 3 is higher than the height of the tension roller body 2. During the bag conveying process, the bag first passes through one set of conveying rollers 3, then around the tension roller body 2, and finally passes through another set of conveying rollers 3. Since the height of the conveying rollers 3 is higher than that of the tension roller body 2, the bag will form a reasonable arc during conveying, so that the bag can be subjected to uniform tension force during the conveying process, avoiding swaying or deviation caused by uneven local force, thereby ensuring the stability of the bag during the conveying process.

[0049] By observing the position of the scale on the side of the movable opening 4 corresponding to the adjustment block 5, the staff can intuitively understand the height of the tension roller body 2. This makes it easier to observe the height of the tension roller body 2 and thus more accurately control the position of the tension roller body 2 to meet the stable conveying of the bag under different tension requirements.

[0050] The size of the movable rod 8 is adapted to the inner diameter of the box body 6. When the movable rod 8 slides vertically on the box body 6, the movable rod 8 will not wobble or deviate on the box body 6, thereby ensuring the stability of the tension roller body 2 in the adaptive adjustment process, so that the tension roller body 2 can accurately apply appropriate tension to the bag and maintain the stable conveying of the bag.

[0051] When it is necessary to replace the tension roller body 2 of different sizes, the operator can pull the box 6 out of the insertion port 14 of the adjusting block 5. At this time, the box 6, along with the movable rod 8, the mounting block 9, and the tension roller body 2, will separate from the adjusting block 5. Then, select a tension roller body 2 of appropriate size and insert its corresponding box 6 into the insertion port 14 of the adjusting block 5. Since the size of the insertion port 14 matches the size of the box 6, the box 6 can be securely installed on the adjusting block 5, which facilitates easy disassembly and assembly of the tension roller body 2, thereby facilitating the replacement of tension roller bodies 2 of different sizes and improving the applicability of the device.

[0052] When the box body 6 is inserted into the insertion port 14 of the adjusting block 5, the edge of the box body 6 will press against the arc surface of the limiting block 17, causing the limiting block 17 to slide into the mounting port 15 against the elastic force of the limiting spring 16. When the box body 6 is fully inserted into the insertion port 14, the limiting block 17 pops out under the action of the limiting spring 16, locking the box body 6, thereby ensuring the stability of the box body 6 on the adjusting block 5, effectively preventing the box body 6 from coming out of the insertion port 14, ensuring the stability of the tensioning roller body 2 during the tensioning process, and thus maintaining the stable conveying of the bag.

[0053] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A tension roller for a bag making machine, comprising a frame (1) and a tension roller body (2), characterized in that, The frame (1) is rotatably equipped with symmetrical conveying rollers (3). The inner wall of the frame (1) is provided with symmetrical movable openings (4). Adjusting blocks (5) are slidably arranged on each movable opening (4). A box (6) is provided on each adjusting block (5). A holding spring (7) is provided inside each box (6). A movable rod (8) is vertically slidably arranged on each box (6). The holding spring (7) is pressed between the box (6) and the movable rod (8). An installation block (9) is fixedly installed at the top of each movable rod (8). The tension roller body (2) is rotatably set between two sets of mounting blocks (9). A support plate (10) is fixedly installed on the top of the frame (1). A cylinder (11) is fixedly installed in the middle of the support plate (10). A horizontal plate (12) is set below the support plate (10). The output shaft end of the cylinder (11) is fixedly installed in the middle of the horizontal plate (12). Vertical rods (13) are fixedly installed at both ends of the horizontal plate (12). The vertical rods (13) are slidably set on the frame (1). The bottom ends of the vertical rods (13) are fixedly installed with the adjusting blocks (5).

2. A tensioning roller for a bag making machine according to claim 1, characterized in that The tensioning roller body (2) is positioned between two sets of conveying rollers (3), and the height of the two sets of conveying rollers (3) is higher than the height of the tensioning roller body (2).

3. A tensioning roller for a bag making machine according to claim 1, characterized in that The inner wall of the frame (1) is marked with scales on the side of the movable opening (4).

4. The tensioning roller for a bag making machine according to claim 1, characterized in that, The dimensions of the movable rod (8) are adapted to the inner diameter of the box (6).

5. The tensioning roller for a bag making machine according to claim 1, characterized in that, The adjustment block (5) has an opening (14), the size of which is adapted to the size of the box (6).

6. A tensioning roller for a bag making machine according to claim 5, characterized in that The adjusting block (5) has an installation port (15) on the side of the socket (14). A limit spring (16) is provided in the installation port (15). A limit block (17) is slidably provided on the installation port (15). The limit spring (16) is pressed between the adjusting block (5) and the limit block (17). The side of the limit block (17) away from the spring is set as an arc surface.

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