Film material conveying device

Abstract

The utility model discloses a film material conveying device, which aims to assist in discharging roll materials and keep the tension state of the film materials during output, and adopts the technical scheme that the film material conveying device comprises a rack and a traction mechanism, a material placing roller, a first tension roller and a swing arm are arranged on the rack, the material placing roller is used for mounting the roll materials, and the first tension roller is used for mounting the roll materials; the rotating axis of the swing arm is parallel to the rotating axis of the material placing roller, a second tensioning roller is arranged on the swing arm, and the rotating axis of the material placing roller, the rotating axis of the first tensioning roller and the rotating axis of the second tensioning roller are parallel to one another; the number of the first tensioning rollers is N, the number of the second tensioning rollers is N-1, N is larger than or equal to 2, the second tensioning rollers are located below the first tensioning rollers, and the second tensioning rollers and the first tensioning rollers are arranged in a staggered mode. After being pulled out of the roll material, a film material alternately bypasses the first tensioning roller and the second tensioning roller and then is connected with the traction mechanism; belongs to the technical field of water filling bag production.

Description

Technical Field

[0001] The utility model belongs to the technical field of water-filled bag production, and more specifically relates to a film material conveying device. Background Art

[0002] A water-filled bag is a toy. After injecting water into the water-filled bag, the water-filled bag can be turned into a water ball, which is quite interesting.

[0003] During production, water-filled bags are generally made of two or more layers of film material that are hot-pressed. The film material is output from a roll. After being pulled from the roll, the film material passes through a hot-pressing die and a traction device. The traction device intermittently pulls the film material. When the film material pauses, the hot-pressing die presses the outline of the water-filled bag on the film material. When the hot-pressing die releases the film material, the traction device pulls the film material, causing the roll material to rotate and release the film material.

[0004] In practice, due to the high speed of pulling the film material during traction, the coiled material often cannot be retracted due to inertia, but instead the material is released too much, and the film material cannot maintain the tension state, affecting the subsequent hot pressing. Utility Model Content

[0005] The main purpose of the utility model is to provide a film material conveying device, which is intended to assist in the discharge of coiled material and maintain the tension state of the film material during output.

[0006] According to a first aspect of the present utility model, a film material conveying device is provided, comprising a frame and a traction mechanism, wherein a feeding roller, a first tensioning roller and a swing arm are provided on the frame, the feeding roller is used to mount a roll of material, the rotation axis of the swing arm is parallel to the rotation axis of the feeding roller, a second tensioning roller is provided on the swing arm, and the rotation axes of the feeding roller, the first tensioning roller and the second tensioning roller are parallel to each other;

[0007] There are N first tensioning rollers and N-1 second tensioning rollers, where N is greater than or equal to 2. The second tensioning rollers are located below the first tensioning rollers and are arranged alternately with the first tensioning rollers. After the film is pulled out from the coil, it alternately passes around the first tensioning rollers and the second tensioning rollers and is then connected to the traction mechanism.

[0008] When the traction mechanism pulls the film material to move, the film material will pull the second tensioning roller to move upward; when the traction mechanism does not pull the film material, the second tensioning roller moves downward by its own weight to pull the coiled material to rotate.

[0009] In the above-mentioned film material conveying device, a pressing strip is provided on the swing arm. When the second tensioning roller moves down to a preset position, the pressing strip contacts the feeding roller to prevent the feeding roller from rotating.

[0010] In the above-mentioned film material conveying device, the pressing strip is made of rubber.

[0011] In the above-mentioned film material conveying device, the pressing strip is arc-shaped.

[0012] In the above-mentioned film material conveying device, a spring is provided below the swing arm. One end of the spring is connected to the frame, and the other end of the spring is connected to the swing arm.

[0013] In the above-mentioned film material conveying device, there are 4 first tensioning rollers and 3 second tensioning rollers.

[0014] One of the technical solutions in the above technical solutions of the present utility model has at least the following advantages or beneficial effects:

[0015] In the present utility model, a first tensioning roller and a second tensioning roller are provided. The first tensioning roller cannot move, while the second tensioning roller is arranged on the swing arm and can move. When the traction mechanism pulls the film material to move, the film material will pull the second tensioning roller upward. During this process, with the support of the first tensioning roller and the second tensioning roller, the film material can maintain a tensioned state. When the traction mechanism does not pull the film material, that is, when the hot pressing die presses the film material, the second tensioning roller moves downward by its own weight, thereby pulling the coil to rotate and allowing the coil to output the film material. When moving downward by its own weight, since the hot pressing time is relatively long, the swing arm can use this period of time to slowly move downward to avoid quickly pulling the coil, so that the coil will not release too much material and the film material can maintain a good tensioned state. Brief Description of the Drawings

[0016] The present utility model will be further described below with reference to the drawings and embodiments;

[0017] Figure 1 is a schematic structural diagram of the first embodiment of the present utility model;

[0018] Figure 2 is a schematic diagram of the second tensioning roller in the first embodiment of the present utility model when it is in the low position;

[0019] Figure 3 is a schematic diagram of the second tensioning roller in the first embodiment of the present utility model when it is in the high position.

[0020] Among them, the reference numerals in each figure:

[0021] 1, frame; 2, traction mechanism; 3, material placing roller; 4, first tensioning roller; 5, swing arm; 51, pressing strip; 6, second tensioning roller; 7, spring. Detailed Embodiment

[0022] The embodiments of the present utility model will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, in which 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 only for explaining the present utility model and should not be construed as limiting the present utility model.

[0023] The following disclosure provides many different embodiments or examples for implementing different solutions of the present utility model.

[0024] Referring to Figures 1 to 3 As shown, a film material conveying device includes a frame 1 and a traction mechanism 2. A material placing roller 3, a first tensioning roller 4, and a swing arm 5 are provided on the frame 1. The material placing roller 3 is used for installing a coil material. The rotation axis of the swing arm 5 is parallel to the rotation axis of the material placing roller 3. A second tensioning roller 6 is provided on the swing arm 5. The rotation axes of the material placing roller 3, the first tensioning roller 4, and the second tensioning roller 6 are parallel to each other;

[0025] There are N first tensioning rollers 4 and N - 1 second tensioning rollers 6, where N is greater than or equal to 2. The second tensioning rollers 6 are located below the first tensioning rollers 4 and are arranged staggeredly with the first tensioning rollers 4; after the film material is pulled out from the coil material, it alternately bypasses the first tensioning rollers 4 and the second tensioning rollers 6 and then is connected to the traction mechanism 2;

[0026] When the traction mechanism 2 pulls the film material to move, the film material will pull the second tensioning roller 6 upward. During this process, with the support of the first tensioning roller 4 and the second tensioning roller 6, the film material can maintain a tensioned state; when the traction mechanism 2 does not pull the film material, that is, when the hot pressing die presses the film material, the second tensioning roller 6 moves downward by its own weight, thereby pulling the coil material to rotate and output the film material. When moving downward by its own weight, since the hot pressing time is relatively long, the swing arm 5 can slowly move downward during this period to avoid quickly pulling the coil material, so that the coil material will not release too much material and the film material can maintain a good tensioned state.

[0027] In this embodiment, the traction mechanism 2 is to traction the waste edge on the film material to pull the film material to move. After the film material passes through the hot pressing die, the outline of the water filling bag will be formed on the film material, and the rest forms the waste edge. The traction mechanism 2 is to wind up the waste edge to pull the film material to move;

[0028] The traction mechanism 2 includes a winding drum and a motor for driving the winding drum to rotate.

[0029] In this embodiment, a pressing strip 51 is provided on the swing arm 5. When the second tensioning roller 6 moves downward to a preset position, the pressing strip 51 contacts the material placing roller 3 to prevent the material placing roller 3 from rotating and further prevent the coil material from releasing too much material;

[0030] Specifically, the middle part of the swing arm 5 is hinged to the frame 1, and the pressing strip 51 is arranged at one end of the swing arm 5 away from the second tensioning roller 6. When the second tensioning roller 6 moves downward, the pressing strip 51 moves upward. Therefore, when the second tensioning roller 6 moves downward to a preset position, the pressing strip 51 will contact the material placing roller 3, thereby preventing the rotation of the material placing roller 3.

[0031] In this embodiment, the pressing strip 51 is made of rubber. There is a large frictional force between the rubber and the material placing roller 3. If rubber is used to contact the material placing roller 3, the rotation of the material placing roller 3 can be better prevented.

[0032] Preferably, the pressing strip 51 is arc-shaped so that the pressing strip 51 can increase the contact area with the material placing roller 3 and increase the frictional force.

[0033] In this embodiment, there are 4 first tensioning rollers 4 and 3 second tensioning rollers 6.

[0034] In this embodiment, a spring 7 can be arranged below the swing arm 5. One end of the spring 7 is connected to the frame 1, and the other end of the spring 7 is connected to the swing arm 5. When the second tensioning roller 6 moves upward, the swing arm 5 rotates upward to stretch the spring 7. Subsequently, relying on the elastic force of the spring 7, the swing arm 5 can be urged to reset, causing the second tensioning roller 6 to move downward. In this structure, the swing arm 5 rotates downward faster, and the rotation of the material placing roller 3 can be restricted by the pressing strip 51 to ensure the tensioned state of the film material.

[0035] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirits of the present invention. The scope of the present invention is defined by the claims and their equivalents.

Claims

1. A film material conveying device, characterized in that, It includes a frame and a traction mechanism. A material placing roller, a first tensioning roller and a swing arm are provided on the frame. The material placing roller is used for installing a coil material. The rotation axis of the swing arm is parallel to the rotation axis of the material placing roller. A second tensioning roller is provided on the swing arm. The rotation axes of the material placing roller, the first tensioning roller and the second tensioning roller are parallel to each other. There are N first tensioning rollers and N - 1 second tensioning rollers, where N is greater than or equal to 2. The second tensioning rollers are located below the first tensioning rollers and are arranged staggeredly with the first tensioning rollers. After the film material is pulled out from the coil material, it alternately bypasses the first tensioning rollers and the second tensioning rollers and then is connected to the traction mechanism. When the traction mechanism pulls the film material to move, the film material will pull the second tensioning rollers upward. When the traction mechanism does not pull the film material, the second tensioning rollers move downward by their own weight to drive the coil material to rotate.

2. The film material conveying device according to claim 1, wherein A pressing strip is provided on the swing arm. After the second tensioning rollers move downward to a preset position, the pressing strip contacts the material placing roller to prevent the material placing roller from rotating.

3. The membrane material conveying device according to claim 2, wherein, The pressing strip is made of rubber material.

4. The membrane material conveying device according to claim 2, characterized in that, The pressing strip is arc-shaped.

5. The film material conveying device according to claim 1, characterized in that, A spring is provided below the swing arm. One end of the spring is connected to the frame and the other end is connected to the swing arm.

6. The film material conveying device according to claim 1, wherein There are 4 first tensioning rollers and 3 second tensioning rollers.

Images