Stretching-free bag making machine with guide rollers convenient to adjust

By designing guide roller adjustment components and anti-deviation components, the problems of low efficiency in manual guide roller adjustment and bag deviation are solved, realizing automatic adjustment and limiting of guide rollers, thereby improving the production efficiency and product quality of bag making machines.

CN223835146UActive Publication Date: 2026-01-27SHENYANG ZHONGHE PLASTIC PACKAGING PROD CO LTD
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Patent Information

Application Number
CN202520468567.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-18
Publication Date
2026-01-27
Estimated Expiration
2035-03-18

AI Technical Summary

Technical Problem

In existing bag-making machines, the guide roller adjustment requires manual adjustment, which is inefficient and cannot limit the movement of bags of different sizes, easily causing the bags to deviate.

Method used

A guide roller adjustment assembly and an anti-deviation assembly were designed. The guide roller adjustment assembly automatically adjusts the height of the guide roller through a motor-driven gear transmission. The anti-deviation assembly limits the edge of the bag through a limiting plate and a squeezing roller structure to ensure that the material is conveyed along the predetermined path.

Benefits of technology

It achieves efficient automatic adjustment of guide rollers and prevents bags from running off-center, thereby improving the production efficiency and product quality of bag making machines.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of bag making machines, and discloses a non-stretching bag making machine convenient for adjusting a guide roller, which comprises a conveying table, support legs are fixedly arranged at the two sides of the bottom of the conveying table at equal intervals, side plates are fixedly arranged at the top of the conveying table at equal intervals, and a guide rod is rotatably connected between the inner sides of the side plates. A guide roller adjusting assembly is arranged at the top of the side plate, and an anti-deviation assembly is arranged on the surface of the side plate. A first guide roller can be adjusted by arranging a guide roller adjusting assembly, the length of a bag can be adjusted, a first motor is started, a driving gear drives a gear sleeve, a rotating rod and a first gear rod to rotate, a second gear rod and a gear are driven by a gear synchronous belt to rotate in a sleeve plate, and the bag can be cut off. The gear rotates to drive the toothed plate, the sliding block and the first guide roller to be adjusted up and down, the limiting sleeve can limit the two sides, the height of the first guide roller can be adjusted conveniently according to different bag making materials and process requirements, and therefore the effect of adjusting the guide rollers is achieved.
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Description

Technical Field

[0001] This utility model relates to the field of bag making machine technology, specifically a non-stretch bag making machine with easily adjustable guide rollers. Background Technology

[0002] With the advancement of industrialization, bag-making machines for producing plastic bags appeared in the early 20th century. In the early days, they were operated manually, resulting in low efficiency and unstable product quality. Later, with technological progress, bag-making machines gradually became automated, and both production efficiency and product quality improved significantly. Plastic bag-making machines can turn plastic films into plastic bags through processes such as extrusion, cooling, cutting, and sealing to meet the ever-growing market demand for plastic products. In modern times, bag-making machines have developed into various types, such as plastic bag-making machines and paper bag-making machines, and bag-making machines for other materials such as non-woven fabrics have also emerged.

[0003] In existing technologies, for packaging staple foods such as rice and flour, bag making machines can produce packaging bags of different specifications by adjusting guide rollers to meet various needs such as family packs and commercial packs. However, during use, the guide rollers need to be manually adjusted, which is inefficient. Furthermore, the guide rollers usually cannot limit the movement of bags of different sizes, which can easily cause the bags to deviate from their designated positions.

[0004] Therefore, a non-stretch bag making machine with easily adjustable guide rollers is proposed. Utility Model Content

[0005] The purpose of this utility model is to provide a non-stretch bag making machine that facilitates the adjustment of guide rollers. It solves the technical problems that guide rollers need to be manually adjusted during the adjustment process, resulting in low adjustment efficiency, and that guide rollers usually cannot limit the positioning of bags of different sizes, which easily causes bag deviation. The present invention achieves the purpose of guide roller adjustment and anti-deviation.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a non-stretching bag making machine with easily adjustable guide rollers, comprising a conveyor table, support legs fixedly installed at equal intervals on both sides of the bottom of the conveyor table, side plates fixedly installed at equal intervals on the top of the conveyor table, guide rods rotatably connected between the inner sides of the side plates, a guide roller adjustment assembly provided on the top of the side plates, and an anti-deviation assembly provided on the surface of the side plates.

[0007] Preferably, the guide roller adjustment assembly specifically includes: a concave plate, fixedly installed on the top of the side plate; a support block, equidistantly fixedly installed on the top of the concave plate; a rotating rod, rotatably connected between the inner walls of the support block; and a motor, fixedly installed on the top of the concave plate.

[0008] Preferably, gear rods are fixedly installed at both ends of the rotating rod, a gear sleeve is fixedly sleeved on the outer wall of the rotating rod, and a drive gear is fixedly installed at the output end of the motor, with the surface of the drive gear meshing with the outer wall of the gear sleeve.

[0009] Preferably, a sleeve plate is fixedly installed on one side of the inner wall of the concave plate, a gear rod two is rotatably connected to the inner wall of the sleeve plate, a gear is fixedly installed on one side of the gear rod two, and a gear timing belt meshes with the outer wall of the gear rod two and the outer wall of the gear rod one.

[0010] Preferably, the top of the concave plate has holes at equal intervals, and the other side of the inner wall of the concave plate has a T-shaped groove. A slider is slidably connected to the inner wall of the T-shaped groove. A toothed plate is fixedly installed on the surface of the slider. The surface of the toothed plate meshes with the surface of the gear. The top of the toothed plate passes through the interior of the hole and extends to the top of the concave plate. A guide roller is rotatably connected between the inner sides of the toothed plates. A limiting sleeve is fixedly fitted on the outer wall of the guide roller at equal intervals. Through the gear rods at both ends of the rotating rod and the gear sleeves on the outer wall, the rotation of the rotating rod can be transmitted to other components. The drive gear meshes with the gear sleeve, which can transmit the power of the motor. Force is efficiently transmitted to the rotating rod. Through the interaction between gears, gear rod two meshes with gear rod one via a gear timing belt, enabling synchronous power transmission and ensuring consistent adjustment actions on both sides. This guarantees the balance and symmetry of the guide roller adjustment. The meshing of the gears with the toothed plate converts the rotation of gear rod two into the linear motion of the toothed plate, driving guide roller one to adjust its vertical position. This allows for easy adjustment of the height of guide roller one according to different bag-making materials and process requirements. The limiting sleeve on the outer wall of guide roller one can limit the bag-making material, preventing it from shifting left or right during transport, thus achieving the effect of guide roller adjustment.

[0011] Preferably, the anti-deviation component specifically includes: a second guide roller, rotatably connected between the inner sides of the side plates; a limiting disc, movably sleeved on the outer wall of the second guide roller; a knob, located on the outer side of the side plates; and a scale, equidistantly fixedly installed on the top of the conveyor table.

[0012] Preferably, a screw is fixedly installed on one side of the knob, and the other end of the screw movably passes through the outer side of the side plate and extends to the inner side of the side plate to be rotatably connected to one side of the limiting plate. The outer wall of the screw is threadedly connected to the inner wall of the side plate. A slide rod is fixedly installed on one side of the limiting plate, and the other end of the slide rod movably passes through the inner side of the side plate and extends to the outer side of the side plate.

[0013] Preferably, a lower extrusion conveyor roller is rotatably connected to the inner side of the side plate, and an upper extrusion conveyor roller is rotatably connected to the inner side of the side plate. A second motor is fixedly installed on the outer side of the side plate, and a rotating shaft is fixedly installed at the output end of the second motor. The other end of the rotating shaft movably passes through the outer side of the side plate and extends to the inner side of the side plate, where it is fixedly connected to the other end of the upper extrusion conveyor roller. By adjusting the position of the limiting disc on the second guide roller, the edge of the bag-making material can be restricted to prevent the material from deviating to both sides during the conveying process, ensuring that the material is conveyed along a predetermined path. The screw is threadedly connected to the inner wall of the side plate, converting the rotational motion of the knob into linear motion, thereby pushing the limiting disc to move on the second guide roller, achieving precise adjustment of the position of the limiting disc. A scale can provide a position reference for the operator, facilitating accurate adjustment of the position of the limiting disc. The second motor drives the upper extrusion conveyor roller to rotate, cooperating with the lower extrusion conveyor roller to convey the bag, thereby achieving the effect of preventing deviation.

[0014] This invention provides a non-stretching bag making machine with easily adjustable guide rollers. It offers the following advantages:

[0015] (1) This utility model can adjust the guide roller by setting the guide roller adjustment component, and can adjust the length of the bag. Start the motor to make the drive gear drive the gear sleeve, rotating rod and gear rod one to rotate. The gear synchronous belt drives the gear rod two and the gear to rotate in the sleeve plate. The rotation of the gear drives the tooth plate, slider and guide roller one to adjust up and down. The limiting sleeve can limit the two sides, so as to adjust the height of the guide roller one according to different bag making materials and process requirements, thereby achieving the effect of guide roller adjustment.

[0016] (2) This utility model can limit the size of bags by setting an anti-deviation component. The starting motor drives the upper extrusion conveyor roller to rotate and convey the bags between the lower extrusion conveyor roller. The guide roller guides the bags. The limiting plate can limit the two sides of the bags. Rotating the knob drives the screw to rotate and drives the limiting plate to slide in the guide roller and drive the slide rod to move. The movement position can be accurately observed through the scale. It can limit the edge of the bag material and prevent the material from deviating to the sides during the conveying process, ensuring that the material is conveyed along the predetermined path, thereby achieving the effect of preventing deviation. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a partial structural diagram of the guide roller adjustment assembly of this utility model;

[0019] Figure 3 This is a schematic diagram of the cross-sectional structure of the concave plate of this utility model;

[0020] Figure 4This is a partial structural diagram of the anti-deviation component of this utility model.

[0021] In the diagram: 1. Conveyor table, 2. Support leg, 3. Side plate, 4. Guide rod, 5. Guide roller adjustment assembly, 511. Concave plate, 512. Support block, 513. Rotating rod, 514. Gear rod one, 515. Gear sleeve, 516. Motor one, 517. Drive gear, 518. Sleeve plate, 519. Gear rod two, 5111. Gear, 5112. Gear synchronous belt, 5113. T-slot, 5114. Slider, 5115. Gear plate, 5116. Guide roller one, 5117. Limiting sleeve, 6. Anti-deviation assembly, 611. Guide roller two, 612. Limiting disc, 613. Knob, 614. Screw, 615. Slide rod, 616. Scale, 617. Lower extrusion conveyor roller, 618. Upper extrusion conveyor roller, 619. Motor two. Detailed Implementation

[0022] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0024] Example 1:

[0025] The existing guide rollers require manual adjustment during the adjustment process, resulting in low efficiency. Furthermore, the guide rollers typically cannot limit the movement of bags of different sizes, easily causing bag misalignment. Therefore, this invention provides a preferred embodiment of a stretch-free bag-making machine with easily adjustable guide rollers. Figure 1-4 As shown: A non-stretch bag making machine with easy-to-adjust guide rollers includes a conveyor table 1, support legs 2 are fixedly installed at equal intervals on both sides of the bottom of the conveyor table 1, side plates 3 are fixedly installed at equal intervals on the top of the conveyor table 1, guide rods 4 are rotatably connected between the inner sides of the side plates 3, a guide roller adjustment assembly 5 is provided on the top of the side plates 3, and an anti-deviation assembly 6 is provided on the surface of the side plates 3.

[0026] The guide roller adjustment assembly 5 specifically includes: a concave plate 511, which is fixedly installed on the top of the side plate 3; a support block 512, which is fixedly installed at equal intervals on the top of the concave plate 511; a rotating rod 513, which is rotatably connected between the inner walls of the support block 512; and a motor 516, which is fixedly installed on the top of the concave plate 511.

[0027] Gear rod 514 is fixedly installed at both ends of the rotating rod 513, and gear sleeve 515 is fixedly sleeved on the outer wall of the rotating rod 513. A drive gear 517 is fixedly installed at the output end of the motor 516, and the surface of the drive gear 517 meshes with the outer wall of the gear sleeve 515.

[0028] A sleeve plate 518 is fixedly installed on one side of the inner wall of the concave plate 511. A gear rod 519 is rotatably connected to the inner wall of the sleeve plate 518. A gear 5111 is fixedly installed on one side of the gear rod 519. A gear timing belt 5112 meshes with the outer wall of the gear rod 514.

[0029] The top of the concave plate 511 has holes at equal intervals, and the other side of the inner wall of the concave plate 511 has a T-shaped groove 5113. The inner wall of the T-shaped groove 5113 is slidably connected to a slider 5114. A toothed plate 5115 is fixedly installed on the surface of the slider 5114. The surface of the toothed plate 5115 meshes with the surface of the gear 5111. The top of the toothed plate 5115 passes through the interior of the hole and extends to the top of the concave plate 511. A guide roller 5116 is rotatably connected between the inner sides of the toothed plate 5115. The outer wall of the guide roller 5116 is fixedly fitted with a limiting sleeve 5117 at equal intervals.

[0030] In this example, the guide roller adjustment assembly 5 can be used to adjust the guide roller 5116, thereby adjusting the length of the bag. Starting the motor 516 causes the drive gear 517 to rotate the gear sleeve 515, rotating rod 513, and gear rod 514. The gear timing belt 5112 drives the gear rod 519 and gear 5111 to rotate within the sleeve plate 518. The rotation of gear 5111 causes the toothed plate 5115, slider 5114, and guide roller 5116 to be adjusted up and down. The limiting sleeve 5117 can limit the sides, thereby achieving the function of guide roller adjustment.

[0031] Example 2:

[0032] Based on Embodiment 1, a preferred embodiment of the non-stretching bag making machine with easily adjustable guide rollers provided by this utility model is, for example... Figure 1-4 As shown: The anti-deviation component 6 specifically includes: a second guide roller 611, which is rotatably connected between the inner sides of the side plate 3; a limiting plate 612, which is movably sleeved on the outer wall of the second guide roller 611; a knob 613, which is set on the outer side of the side plate 3; and a scale 616, which is fixedly installed at equal intervals on the top of the conveyor table 1.

[0033] A screw 614 is fixedly installed on one side of the knob 613. The other end of the screw 614 moves through the outer side of the side plate 3 and extends to the inner side of the side plate 3, where it is rotatably connected to one side of the limiting plate 612. The outer wall of the screw 614 is threadedly connected to the inner wall of the side plate 3. A slide rod 615 is fixedly installed on one side of the limiting plate 612. The other end of the slide rod 615 moves through the inner side of the side plate 3 and extends to the outer side of the side plate 3.

[0034] A lower extrusion conveyor roller 617 is rotatably connected between the inner sides of the side plate 3, and an upper extrusion conveyor roller 618 is rotatably connected to the inner side of the side plate 3. A second motor 619 is fixedly installed on the outer side of the side plate 3. A rotating shaft is fixedly installed at the output end of the second motor 619. The other end of the rotating shaft movably passes through the outer side of the side plate 3 and extends to the inner side of the side plate 3, where it is fixedly connected to the other end of the upper extrusion conveyor roller 618.

[0035] In this example, by setting the anti-deviation component 6, bags of different sizes can be limited. The second motor 619 is started to drive the upper extrusion conveyor roller 618 to rotate, and the bags between the lower extrusion conveyor roller 617 are conveyed. The second guide roller 611 provides guidance, and the limiting plate 612 can limit the bags on both sides. Rotating the knob 613 drives the screw 614 to rotate, and drives the limiting plate 612 to slide within the second guide roller 611, and drives the slide bar 615 to move. The movement position can be accurately observed through the scale 616, thereby achieving the function of preventing deviation.

[0036] Working principle: First, guide rod 4 guides the bag. When the bag length needs to be adjusted, motor 516 is started, causing drive gear 517 to drive gear sleeve 515, rotating rod 513, and gear rod 514 to rotate. Rotating rod 513 rotates within support block 512, driving gear rod 519 and gear 5111 to rotate within sleeve plate 518 via gear synchronous belt 5112. The rotation of gear 5111 drives gear plate 5115, slider 5114, and guide roller 5116 to adjust up and down. Slider 5114 slides within T-groove 5113. Limit sleeve 5117 can adjust both sides. Limiting: When bags need to be conveyed, the second motor 619 drives the upper extrusion conveyor roller 618 to rotate, conveying the bags between the lower extrusion conveyor roller 617. When bags of different sizes need to be limited, the second guide roller 611 guides them, and the limiting plate 612 can limit the bags on both sides. Since the screw 614 is connected to the internal thread of the side plate 3, rotating the knob 613 drives the screw 614 to rotate, and drives the limiting plate 612 to slide inside the second guide roller 611. Finally, it drives the slide bar 615 to move. The position of movement can be accurately observed through the scale 616, thereby achieving the function of guide roller adjustment and anti-deviation.

[0037] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A non-stretch bag making machine with easily adjustable guide rollers, comprising a conveyor table (1), characterized in that: The bottom two sides of the conveyor platform (1) are fixedly installed with support legs (2) at equal intervals. The top of the conveyor platform (1) is fixedly installed with side plates (3) at equal intervals. The inner sides of the side plates (3) are rotatably connected with guide rods (4). The top of the side plates (3) is provided with guide roller adjustment components (5). The surface of the side plates (3) is provided with anti-deviation components (6).

2. The non-stretching bag making machine with easily adjustable guide rollers according to claim 1, characterized in that: The guide roller adjustment assembly (5) specifically includes: A concave plate (511) is fixedly installed on the top of the side plate (3); Support blocks (512) are fixedly installed at equal intervals on the top of the concave plate (511); The rotating rod (513) is rotatably connected between the inner walls of the support block (512); Motor 1 (516) is fixedly installed on the top of the concave plate (511).

3. A non-stretching bag making machine with easily adjustable guide rollers according to claim 2, characterized in that: Gear rods (514) are fixedly installed at both ends of the rotating rod (513), and gear sleeves (515) are fixedly sleeved on the outer wall of the rotating rod (513). A drive gear (517) is fixedly installed at the output end of the motor (516), and the surface of the drive gear (517) meshes with the outer wall of the gear sleeve (515).

4. A non-stretching bag making machine with easily adjustable guide rollers according to claim 2, characterized in that: A sleeve plate (518) is fixedly installed on one side of the inner wall of the concave plate (511). A gear rod (519) is rotatably connected to the inner wall of the sleeve plate (518). A gear (5111) is fixedly installed on one side of the gear rod (519). A gear timing belt (5112) meshes with the outer wall of the gear rod (514).

5. A non-stretching bag making machine with easily adjustable guide rollers according to claim 2, characterized in that: The top of the concave plate (511) is provided with holes at equal intervals. The other side of the inner wall of the concave plate (511) is provided with a T-shaped groove (5113). The inner wall of the T-shaped groove (5113) is slidably connected to a slider (5114). A toothed plate (5115) is fixedly installed on the surface of the slider (5114). The surface of the toothed plate (5115) meshes with the surface of the gear (5111). The top of the toothed plate (5115) penetrates the interior of the hole and extends to the top of the concave plate (511). A guide roller (5116) is rotatably connected between the inner sides of the toothed plates (5115). The outer wall of the guide roller (5116) is fixedly fitted with a limiting sleeve (5117) at equal intervals.

6. A non-stretching bag making machine with easily adjustable guide rollers according to claim 1, characterized in that: The anti-deviation component (6) specifically includes: Guide roller 2 (611) is rotatably connected between the inner sides of the side plate (3); The limiting plate (612) is movably sleeved on the outer wall of the guide roller two (611); A knob (613) is located on the outside of the side panel (3); A scale (616) is fixedly installed at equal intervals on the top of the conveyor table (1).

7. A non-stretch bag making machine with easily adjustable guide rollers according to claim 6, characterized in that: A screw (614) is fixedly installed on one side of the knob (613). The other end of the screw (614) moves through the outside of the side plate (3) and extends to the inside of the side plate (3) to be rotatably connected to one side of the limiting plate (612). The outer wall of the screw (614) is threadedly connected to the inner wall of the side plate (3). A slide rod (615) is fixedly installed on one side of the limiting plate (612). The other end of the slide rod (615) moves through the inside of the side plate (3) and extends to the outside of the side plate (3).

8. A non-stretch bag making machine with easily adjustable guide rollers according to claim 1, characterized in that: A lower extrusion conveyor roller (617) is rotatably connected between the inner sides of the side plate (3), and an upper extrusion conveyor roller (618) is rotatably connected to the inner side of the side plate (3). A second motor (619) is fixedly installed on the outer side of the side plate (3). A rotating shaft is fixedly installed at the output end of the second motor (619). The other end of the rotating shaft movably passes through the outer side of the side plate (3) and extends to the inner side of the side plate (3) and is fixedly connected to the other end of the upper extrusion conveyor roller (618).