Anti-deformation winding device

Abstract

The utility model relates to the technical field of transparent vacuum bags, and discloses an anti-deformation winding device which comprises a rack, the top of the rack is rotationally connected with two sets of guide rollers, a motor is fixedly installed at the top of the rack, a winding roller is fixedly installed at the output end of the motor, and the winding roller is fixedly installed at the output end of the motor. According to the winding device capable of preventing deformation, by arranging a torsional spring and a swing rod, the two leather rollers can be attached to the upper surface and the lower surface of a transparent vacuum bag correspondingly, the transparent vacuum bag is extruded, air in the transparent vacuum bag is exhausted, the winding effect of the transparent vacuum bag is improved, and the winding effect of the transparent vacuum bag is improved. And meanwhile, through cooperation of a spring, a sliding plate, a boss and a limiting roller, the transparent vacuum bag can tightly abut against the outer wall of the winding roller, the transparent vacuum bag is tightly wound around the outer wall of the winding roller, and the winding quality of the transparent vacuum bag is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of transparent vacuum bags, in particular to a rolling device capable of preventing deformation. Background Art

[0002] Transparent vacuum bag is a kind of high-strength plastic soft packaging, usually called decompression packaging. It is based on the principle of atmospheric pressure. The main function of transparent vacuum bag is to deoxygenate, which is helpful to prevent food from mildew and deterioration. Common bag types include three-side seal, back seal bag, brick bag, side seal bag, etc.

[0003] When transparent vacuum bags are produced in the factory, they are rolled into bundles for easy transportation and sales. The production line usually uses a rotating winding roller to roll up the transparent vacuum bags. However, some transparent vacuum bags will have some air left inside during the production process, which will cause the transparent vacuum bags to appear uneven. If they are rolled up directly, the transparent vacuum bags may be deformed after being rolled into bundles, affecting subsequent packaging. Utility Model Content

[0004] The purpose of the utility model is to provide a deformation-resistant retracting device to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a deformation-resistant winding device, comprising a frame, the top of the frame is rotatably connected to two sets of guide rollers, a motor is fixedly installed on the top of the frame, a winding roller is fixedly installed on the output end of the motor, a sliding rod is fixedly installed on the inner wall of the frame, a compacting mechanism for compacting the vacuum bag is arranged on the frame, and the air in the transparent vacuum bag can be squeezed out by arranging the compacting mechanism, and the compacting mechanism comprises:

[0006] A slide plate, wherein the slide plate is slidably connected to the outer wall of the slide rod, two sets of bosses are fixedly installed on the upper surface of the slide plate, a spring is sleeved on the outer wall of the slide rod, one end of the spring is fixedly installed on the bottom of the slide plate, and the other end of the spring is fixedly installed on the outer wall of the frame, and by setting the spring to cooperate with the slide plate and the boss, the limiting roller can tightly contact the transparent vacuum bag against the outer wall of the winding roller;

[0007] A limiting roller, wherein the limiting roller is rotatably connected to the top of the boss, and the outer wall of the limiting roller is in contact with the outer wall of the winding roller. By setting the limiting roller, the transparent vacuum bag can be tightly wound around the outer wall of the winding roller;

[0008] The swing rod is hinged on the side wall of the boss, the outer wall of the swing rod is rotatably connected with a leather roller, and a torsion spring is arranged at the hinge between the swing rod and the boss. The torsion spring is arranged in conjunction with the swing rod so that the two groups of leather rollers can be tightly fitted together.

[0009] Preferably, a guide mechanism is provided on the slide plate, and the guide mechanism includes a bidirectional screw rod, one end of the bidirectional screw rod is rotatably connected to the side wall of the boss, and the other end of the bidirectional screw rod passes through the boss and is fixedly installed with a knob. By setting the bidirectional screw rod, the spacing between the two sets of guide plates can be adjusted.

[0010] Preferably, the outer wall of the bidirectional lead screw is threadedly connected with two sets of guide discs, and the transparent vacuum bag can be neatly wound around the outer wall of the winding roller by arranging the guide discs.

[0011] Preferably, the bottom of the guide plate is in contact with the upper surface of the slide plate.

[0012] Preferably, the bidirectional screw is rotatably connected to the through-hole of the boss.

[0013] Preferably, two groups of the rocker arms are provided, and the two groups of the rocker arms are mirror-imaged on the side walls of the boss with the bidirectional screw as the central axis, and the outer walls of the two groups of the rocker arms are rotatably connected with leather rollers, and the two groups of the leather rollers are in contact with each other.

[0014] Compared with the prior art, the utility model provides a retracting device that can prevent deformation, which has the following beneficial effects:

[0015] 1. The deformation-resistant winding device can make two groups of rollers respectively fit the upper surface and the lower surface of the transparent vacuum bag by arranging a torsion spring and a rocker rod, so as to squeeze the transparent vacuum bag and discharge the air in the transparent vacuum bag, thereby improving the winding effect of the transparent vacuum bag and preventing the transparent vacuum bag from deforming after being wound up. At the same time, in combination with the spring, the slide plate, the boss and the limit roller, the transparent vacuum bag can be tightly abutted against the outer wall of the winding roller, so that the transparent vacuum bag is tightly wound around the outer wall of the winding roller, thereby improving the winding quality of the transparent vacuum bag.

[0016] 2. The deformation-resistant winding device can drive two sets of guide plates threadedly connected to the two sets of guide plates to move synchronously in opposite directions by rotating the bidirectional lead screw with a knob. The spacing between the two sets of guide plates can be adjusted according to the width of the transparent vacuum bag. The two sets of guide plates can be used to limit the position of the transparent vacuum bag wound on the winding roller, so that the transparent vacuum bag is neatly wound on the outer wall of the winding roller, further improving the winding quality of the transparent vacuum bag. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0018] Figure 2 This is a schematic diagram of the overall structure of the skateboard of the utility model;

[0019] Figure 3 For this utility model Figure 1 A schematic diagram of the enlarged structure at point A;

[0020] Figure 4 For this utility model Figure 1 Schematic diagram of the enlarged structure at B.

[0021] In the figure: 1. frame; 2. guide roller; 3. motor; 4. winding roller; 5. slide bar; 6. compacting mechanism; 61. slide plate; 62. limit roller; 63. rocker bar; 64. boss; 65. leather roller; 66. torsion spring; 67. spring; 7. guide mechanism; 71. bidirectional screw rod; 72. knob; 73. guide plate. DETAILED DESCRIPTION

[0022] like Figure 1-Figure 4 As shown, the utility model provides a technical solution: a deformation-resistant winding device, comprising a frame 1, the top of the frame 1 is rotatably connected to two groups of guide rollers 2, the top of the frame 1 is fixedly installed with a motor 3, the output end of the motor 3 is fixedly installed with a winding roller 4, the inner wall of the frame 1 is fixedly installed with a slide bar 5, and the frame 1 is provided with a compacting mechanism 6 for compacting the vacuum bag. By setting the compacting mechanism 6, the air in the transparent vacuum bag can be squeezed out, thereby improving the winding quality of the transparent vacuum bag.

[0023] The above-mentioned compacting mechanism 6 includes a slide plate 61, a limiting roller 62, a rocker rod 63, a boss 64, a leather roller 65, a torsion spring 66, and a spring 67; the slide plate 61 is slidably connected to the outer wall of the slide bar 5, and two groups of bosses 64 are fixedly installed on the upper surface of the slide plate 61. The outer wall of the slide bar 5 is sleeved with a spring 67, one end of the spring 67 is fixedly installed at the bottom of the slide plate 61, and the other end of the spring 67 is fixedly installed on the outer wall of the frame 1. The slide plate 61 can be squeezed upward by the elasticity of the spring 67, and at the same time, the boss 64 can drive the limiting roller 62 to fit the outer wall of the transparent vacuum bag after the winding roller 4 is wound up. The limiting roller 62 is rotatably connected to the top of the boss 64, and the outer wall of the limiting roller 62 fits the outer wall of the winding roller 4. The limiting roller 62 can be used to tightly abut the outer wall of the winding roller 4, so that the transparent vacuum bag is tightly wrapped around the winding roller 4 The outer wall of the swing rod 63 is hinged on the side wall of the boss 64, and the outer wall of the swing rod 63 is rotatably connected with a roller 65. A torsion spring 66 is arranged at the hinge of the swing rod 63 and the boss 64. Under the elastic action of the two sets of torsion springs 66, the two sets of swing rods 63 drive the two sets of rollers 65 to fit tightly together, so that the two sets of rollers 65 are respectively fitted on the upper surface and the lower surface of the transparent vacuum bag. The swing rod 63 is provided with two groups, and the two sets of swing rods 63 are mirror-imaged on the side wall of the boss 64 with the bidirectional screw rod 71 as the central axis. The outer walls of the two sets of swing rods 63 are both rotatably connected with rollers 65, and the two sets of rollers 65 are fitted to each other to pass the transparent vacuum bag on the production line between the two sets of rollers 65 and be wound around the winding roller 4, so that the two sets of rollers 65 are respectively fitted on the upper surface and the lower surface of the transparent vacuum bag, the transparent vacuum bag is squeezed, and the air in the transparent vacuum bag is discharged.

[0024] The slide plate 61 is provided with a guide mechanism 7, by which the transparent vacuum bag being wound up can be guided so that the transparent vacuum bag can be neatly wound around the outer wall of the winding roller 4. The guide mechanism 7 comprises a bidirectional screw rod 71, a knob 72 and a guide plate 73; one end of the bidirectional screw rod 71 is rotatably connected to the side wall of the boss 64, and the other end of the bidirectional screw rod 71 passes through the boss 64 and is fixedly installed with a knob 72. The outer wall of the bidirectional screw rod 71 is threadedly connected with two groups of guide plates 73, and the spacing between the two groups of guide plates 73 can be adjusted according to the width of the transparent vacuum bag. The two groups of guide plates 73 can be used to limit the transparent vacuum bag wound up on the winding roller 4, so that the transparent vacuum bag can be neatly wound around the outer wall of the winding roller 4. The bottom of the guide plate 73 is in contact with the upper surface of the slide plate 61, and the bidirectional screw rod 71 is rotated by the knob 72 to drive the two groups of guide plates 73 threadedly connected thereto to move synchronously in opposite directions, and the bidirectional screw rod 71 is rotatably connected to the penetration of the boss 64.

[0025] Working principle: The transparent vacuum bag on the production line passes through two sets of guide rollers 2, then passes between two sets of leather rollers 65, and is wound around the winding roller 4. The motor 3 is used to drive the winding roller 4 to rotate, and the transparent vacuum bag is rolled up by the rotation of the winding roller 4. At this time, under the elastic action of the two sets of torsion springs 66, the two sets of swing rods 63 drive the two sets of leather rollers 65 to fit tightly together, so that the two sets of leather rollers 65 are respectively attached to the upper surface and the lower surface of the transparent vacuum bag, and the transparent vacuum bag is squeezed to discharge the air in the transparent vacuum bag. The transparent vacuum bag is wound up by the winding roller 4, so as to improve the winding effect of the transparent vacuum bag and prevent the transparent vacuum bag from being deformed after being wound up. At the same time, during the winding process, the winding roller 4 can press the slide plate 61 upwards through the elasticity of the spring 67, and at the same time, the boss 64 can drive the limiting roller 62 to fit the outer wall of the transparent vacuum bag after the winding roller 4 is wound up. The limiting roller 62 can be used to tightly contact the transparent vacuum bag against the outer wall of the winding roller 4, so that the transparent vacuum bag is tightly wrapped around the outer wall of the winding roller 4, thereby improving the winding quality of the transparent vacuum bag.

[0026] By rotating the bidirectional screw rod 71 with the knob 72, the two sets of guide plates 73 threadedly connected thereto can be driven to move synchronously in opposite directions. The spacing between the two sets of guide plates 73 can be adjusted according to the width of the transparent vacuum bag, so that the two sets of guide plates 73 can fit the side walls at both ends of the transparent vacuum bag. The two sets of guide plates 73 can be used to limit the transparent vacuum bag rolled up on the winding roller 4, so that the transparent vacuum bag can be neatly wound around the outer wall of the winding roller 4, further improving the rolling quality of the transparent vacuum bag.

[0027] 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 deformation-resistant retracting device, comprising a frame (1), characterized in that: The top of the frame (1) is rotatably connected to two groups of guide rollers (2), the top of the frame (1) is fixedly mounted with a motor (3), the output end of the motor (3) is fixedly mounted with a winding roller (4), the inner wall of the frame (1) is fixedly mounted with a sliding rod (5), and the frame (1) is provided with a compacting mechanism (6) for compacting the vacuum bag, and the compacting mechanism (6) comprises: A slide plate (61), wherein the slide plate (61) is slidably connected to the outer wall of the slide bar (5), two groups of bosses (64) are fixedly mounted on the upper surface of the slide plate (61), and a spring (67) is sleeved on the outer wall of the slide bar (5), one end of the spring (67) is fixedly mounted on the bottom of the slide plate (61), and the other end of the spring (67) is fixedly mounted on the outer wall of the frame (1); A limiting roller (62), the limiting roller (62) being rotatably connected to the top of the boss (64), the outer wall of the limiting roller (62) being in contact with the outer wall of the winding roller (4); A swing rod (63) is hinged on the side wall of the boss (64), the outer wall of the swing rod (63) is rotatably connected to a leather roller (65), and a torsion spring (66) is provided at the hinge between the swing rod (63) and the boss (64).

2. The deformation-resistant retracting device according to claim 1, characterized in that: The slide plate (61) is provided with a guide mechanism (7), the guide mechanism (7) comprising a bidirectional screw rod (71), one end of the bidirectional screw rod (71) being rotatably connected to the side wall of the boss (64), and the other end of the bidirectional screw rod (71) passing through the boss (64) and being fixedly mounted with a knob (72).

3. The deformation-resistant retracting device according to claim 2, characterized in that: The outer wall of the bidirectional screw rod (71) is threadedly connected with two sets of guide plates (73).

4. The deformation-resistant retracting device according to claim 3, characterized in that: The bottom of the guide plate (73) is in contact with the upper surface of the slide plate (61).

5. The deformation-resistant retracting device according to claim 2, characterized in that: The bidirectional screw rod (71) is rotatably connected to the penetration point of the boss (64).

6. The deformation-resistant retracting device according to claim 1, characterized in that: The swing rods (63) are provided in two groups, and the two groups of swing rods (63) are mirror-imaged on the side walls of the boss (64) with the bidirectional screw rod (71) as the central axis. The outer walls of the two groups of swing rods (63) are rotatably connected with leather rollers (65), and the two groups of leather rollers (65) are in contact with each other.

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