Bag making machine with tension adjusting function

Abstract

The utility model relates to the technical field of packaging bag production, and discloses a bag making machine with a tension adjustable function, which comprises a processing table, the inner wall of the processing table is rotatably connected with a guide roller, the inner wall of the processing table is provided with a sliding chute, and the guide roller is rotatably connected with the sliding chute. The bag making machine with the tension adjusting function comprises a processing table, the processing table is internally provided with an adjusting mechanism for adjusting tension, the adjusting mechanism comprises a tension roller, the two ends of the tension roller are rotationally connected with sliding blocks, and the sliding blocks are slidably connected to the inner walls of sliding grooves. The tension roller can be driven to move up and down through the up-and-down swinging of the sleeve rod in cooperation with the guide rod, the sliding plate, the spring and the sliding block, the tension can be freely adjusted according to the thickness of the film through the up-and-down movement of the tension roller, and wrinkles of the film in the conveying process are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of packaging bag production, in particular to a bag making machine with a tension adjustable function. Background Art

[0002] Bag making machine is 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.

[0003] According to a disclosed bag making machine (publication number: CN217258758U), the rotating wheel in the above application drives the screw to rotate, thereby mobilizing the fixed seat to move in the slide groove opened on the workbench, thereby changing the distance between the pressure roller and the conveying rubber roller group, which is applied to the transmission of films of different thicknesses.

[0004] During the production process, films of different thicknesses require different tensions. The thicker the film, the greater the tension required to prevent the film from wrinkling and deforming during transportation. However, the conveying rubber roller group of the device cannot adjust the tension required for film transportation according to the thickness of the film. During the film transportation process, the film may be deformed due to excessive tension. Utility Model Content

[0005] The purpose of the utility model is to provide a bag making machine with a tension adjustable function to solve the problems raised in the above background technology.

[0006] To achieve the above object, the utility model provides the following technical solution: a bag making machine with adjustable tension function, comprising a processing table, the inner wall of the processing table is rotatably connected with a guide roller, the inner wall of the processing table is provided with a slide groove, and an adjusting mechanism for adjusting tension is arranged inside the processing table. By setting the adjusting mechanism, the tension during transportation can be freely adjusted according to the thickness of the film, and the adjusting mechanism comprises:

[0007] A tension roller, both ends of which are rotatably connected to sliders, which are slidably connected to the inner wall of the slide groove, a spring is fixedly installed at the bottom of the slider, a slide plate is fixedly installed at one end of the spring away from the slider, which is slidably connected to the inner wall of the slide groove, and a guide rod is fixedly installed on the side wall of the slide plate. The tension of the film can be adjusted by setting the tension roller;

[0008] A rotating shaft, one end of which is rotatably connected to the inner wall of the processing table, a sleeve rod is fixedly installed on the other end of the rotating shaft, and a worm gear is fixedly installed on the outer wall of the rotating shaft. By arranging the rotating shaft to cooperate with the sleeve rod and the guide rod, the slide plate can be driven to slide up and down on the inner wall of the slide groove;

[0009] A worm, one end of which is rotatably connected to the inner wall of the processing table, and the other end of which is fixedly mounted with a knob, and the worm is meshed with a worm wheel. The worm and the worm wheel can be arranged to drive the rotating shaft to rotate.

[0010] Preferably, the outer wall of the guide rod is in contact with the inner wall of the sleeve rod.

[0011] Preferably, an auxiliary mechanism is provided on the slide, and the auxiliary mechanism includes a limiting roller, both ends of the limiting roller are rotatably connected to a connecting rod, and one end of the connecting rod away from the limiting roller is hinged to the side wall of the slide. By arranging the limiting roller, the film can be made close to the tension roller.

[0012] Preferably, a torsion spring is provided at the hinge between the connecting rod and the slide plate, and the two groups of limiting rollers can be brought closer to each other by providing the torsion spring in conjunction with the connecting rod.

[0013] Preferably, two groups of the limiting rollers are provided, and the two groups of the limiting rollers are mirror-imaged on both sides of the slide plate with the slide plate as the central axis.

[0014] Preferably, two groups of guide rollers are provided, and the two groups of guide rollers are mirror-imaged on both sides of the tension roller with the slide plate as the central axis.

[0015] Compared with the prior art, the utility model provides a bag making machine with adjustable tension, which has the following beneficial effects:

[0016] 1. The bag making machine with adjustable tension function can drive the sleeve rod to swing up and down by turning the worm by turning the knob, and cooperate with the worm wheel and the rotating shaft. The up and down swing of the sleeve rod cooperates with the guide rod, slide plate, spring and slider to drive the tension roller to move up and down. The tension can be freely adjusted according to the thickness of the film through the up and down movement of the tension roller to avoid wrinkles in the film during transportation.

[0017] 2. The bag making machine with adjustable tension function can make the limit roller close to the lower surface of the film through the elasticity of the torsion spring and the connecting rod, so that the limit roller squeezes the film upward, and the film can be conveyed in a taut state on the tension roller, further improving the conveying quality of the film. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 It is a schematic diagram of the structure of the utility model as a whole from the side;

[0020] Figure 3 This is a schematic diagram of the cross-sectional structure of the utility model;

[0021] Figure 4 It is a schematic diagram of the overall structure of the skateboard of the utility model;

[0022] Figure 5 For this utility model Figure 1 A schematic diagram of the enlarged structure at point A;

[0023] Figure 6 For this utility model Figure 2 Schematic diagram of the enlarged structure at B.

[0024] In the figure: 1. processing table; 2. guide roller; 3. slide groove; 4. adjustment mechanism; 41. tension roller; 42. rotating shaft; 43. worm; 44. slider; 45. spring; 46. slide plate; 47. guide rod; 48. sleeve rod; 49. knob; 410. worm gear; 5. auxiliary mechanism; 51. limit roller; 52. connecting rod; 53. torsion spring. DETAILED DESCRIPTION

[0025] like Figure 1-Figure 6 As shown, the utility model provides a technical solution: a bag making machine with adjustable tension function, including a processing table 1, the inner wall of the processing table 1 is rotatably connected with a guide roller 2, two groups of guide rollers 2 are provided, and the two groups of guide rollers 2 are mirror-imaged on both sides of a tension roller 41 with a slide plate 46 as the central axis, a slide groove 3 is opened on the inner wall of the processing table 1, and an adjusting mechanism 4 for adjusting the tension is arranged inside the processing table 1, and the adjustment mechanism 4 can be freely adjusted according to the thickness of the film during transportation.

[0026] The above-mentioned adjustment mechanism 4 includes a tension roller 41, a rotating shaft 42, a worm 43, a slider 44, a spring 45, a slide plate 46, a guide rod 47, a sleeve rod 48, a knob 49, and a worm gear 410; both ends of the tension roller 41 are rotatably connected with the sliders 44, and the film can be squeezed by moving the tension roller 41 downward, so that the film is kept in a taut state for transportation, and the tension roller 41 is driven to move up and down by the slider 44. By moving the tension roller 41 up and down, the tension can be freely adjusted according to the thickness of the film. The slider 44 is slidably connected to the inner wall of the slide groove 3, and a spring 45 is fixedly installed at the bottom of the slider 44, and a slide plate 46 is fixedly installed at one end of the spring 45 away from the slider 44. By setting the spring 45, a soft connection can be made between the slider 44 and the slide plate 46. When the tension of the film suddenly increases during processing, the elasticity of the spring 45 and the slider 44 can be used to make the tension roller 41 flexibly adjusted according to the tension of the film to avoid the film from being loosened due to the thin film. The film is damaged due to excessive tension. The slide plate 46 slides up and down in cooperation with the spring 45 to drive the slide block 44 to move synchronously. The slide plate 46 is slidably connected to the inner wall of the slide groove 3. The side wall of the slide plate 46 is fixedly installed with a guide rod 47. One end of the rotating shaft 42 is rotatably connected to the inner wall of the processing table 1. The other end of the rotating shaft 42 is fixedly installed with a sleeve rod 48. The outer wall of the guide rod 47 fits the inner wall of the sleeve rod 48. The rotation of the rotating shaft 42 can drive the sleeve rod 48 to swing downward. At the same time, the sleeve rod 48 will push the guide rod 47 downward, so that the guide rod 47 drives the slide plate 46 to move downward inside the slide groove 3. The outer wall of the rotating shaft 42 is fixedly installed with a worm gear 410. One end of the worm 43 is rotatably connected to the inner wall of the processing table 1. The other end of the worm 43 is fixedly installed with a knob 49. The worm 43 is meshed with the worm wheel 410. The worm 43 is rotated by the knob 49, and the rotating shaft 42 can be driven to rotate at the same time in cooperation with the worm wheel 410 meshing therewith.

[0027] The above-mentioned slide plate 46 is provided with an auxiliary mechanism 5, and the auxiliary mechanism 5 can improve the stability of the film during transportation. The auxiliary mechanism 5 includes a limiting roller 51, a connecting rod 52, and a torsion spring 53; both ends of the limiting roller 51 are rotatably connected with the connecting rod 52, and the end of the connecting rod 52 away from the limiting roller 51 is hinged to the side wall of the slide plate 46, and a torsion spring 53 is provided at the hinge of the connecting rod 52 and the slide plate 46. The limiting roller 51 can be tightly attached to the lower surface of the film through the elasticity of the torsion spring 53 and the connecting rod 52, so that the limiting roller 51 squeezes the film upward. There are two groups of limiting rollers 51, and the two groups of limiting rollers 51 are mirror-imaged on both sides of the slide plate 46 with the slide plate 46 as the central axis. The two groups of limiting rollers 51 cooperate with the tension roller 41, so that the film can be kept in a taut state during transportation on the tension roller 41, thereby further improving the transportation quality of the film.

[0028] Working principle: the film used to make bags passes through the top of the guide roller 2, then passes through the bottom of the tension roller 41, and finally passes through the top of another guide roller 2. The film is pulled by the traction device of the production line, and two sets of guide rollers 2 and the tension roller 41 are used to guide and convey the film. When the tension of the film needs to be adjusted, the worm 43 is rotated by the knob 49, and the worm gear 410 engaged therewith can drive the rotating shaft 42 to rotate. The rotation of the rotating shaft 42 can drive the sleeve rod 48 to swing downward. At the same time, the sleeve rod 48 will push the guide rod 47 downward, so that the guide rod 47 drives the slide plate 46 to move downward inside the slide groove 3. At this time, the spring 45 can drive the slider 44 to move downward synchronously, so that the slider 44 drives the tension roller 41 to move downward. The downward movement of the tension roller 41 can squeeze the film, so that the film is kept in a taut state for transportation, and wrinkles of the film are avoided during transportation. The tension size can be freely adjusted according to the thickness of the film by the up and down movement of the tension roller 41.

[0029] Through the elasticity of the torsion spring 53 and the connecting rod 52, the limiting roller 51 can be tightly attached to the lower surface of the film, so that the limiting roller 51 squeezes the film upward, and at the same time the tension roller 41 pulls the film downward. By using two sets of limiting rollers 51 and the tension roller 41, the film can be kept in a taut state on the tension roller 41 during transportation, thereby further improving the transportation quality of the film.

[0030] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not deviate from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A bag making machine with adjustable tension, comprising a processing table (1), characterized in that: The inner wall of the processing table (1) is rotatably connected to a guide roller (2), the inner wall of the processing table (1) is provided with a slide groove (3), and an adjustment mechanism (4) for adjusting tension is arranged inside the processing table (1), and the adjustment mechanism (4) comprises: A tension roller (41), both ends of the tension roller (41) are rotatably connected to sliders (44), the sliders (44) are slidably connected to the inner wall of the slide groove (3), a spring (45) is fixedly installed at the bottom of the slider (44), a slide plate (46) is fixedly installed at one end of the spring (45) away from the slider (44), the slide plate (46) is slidably connected to the inner wall of the slide groove (3), and a guide rod (47) is fixedly installed on the side wall of the slide plate (46); A rotating shaft (42), one end of the rotating shaft (42) is rotatably connected to the inner wall of the processing table (1), a sleeve rod (48) is fixedly mounted on the other end of the rotating shaft (42), and a worm gear (410) is fixedly mounted on the outer wall of the rotating shaft (42); A worm (43), one end of which is rotatably connected to the inner wall of the processing table (1), and the other end of which is fixedly mounted with a knob (49), and the worm (43) is meshed with a worm wheel (410).

2. The bag making machine with adjustable tension according to claim 1, characterized in that: The outer wall of the guide rod (47) is fitted on the inner wall of the sleeve rod (48).

3. The bag making machine with adjustable tension according to claim 1, characterized in that: The slide plate (46) is provided with an auxiliary mechanism (5), the auxiliary mechanism (5) comprising a limiting roller (51), both ends of the limiting roller (51) are rotatably connected to a connecting rod (52), and one end of the connecting rod (52) away from the limiting roller (51) is hinged to the side wall of the slide plate (46).

4. The bag making machine with adjustable tension according to claim 3, characterized in that: A torsion spring (53) is provided at the hinged portion between the connecting rod (52) and the slide plate (46).

5. The bag making machine with adjustable tension according to claim 3, characterized in that: Two groups of the limiting rollers (51) are provided, and the two groups of the limiting rollers (51) are mirror-imaged on both sides of the slide plate (46) with the slide plate (46) as the central axis.

6. The bag making machine with adjustable tension according to claim 1, characterized in that: The guide rollers (2) are provided in two groups, and the two groups of guide rollers (2) are arranged on both sides of the tension roller (41) in a mirror-image manner with the slide plate (46) as the central axis.

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