Plastic uptake sheet unwinding and feeding device

Abstract

The utility model relates to the technical field of plastic uptake sheet unwinding and feeding, in particular to a plastic uptake sheet unwinding and feeding device which comprises a processing box, a feeding frame is arranged on one side of the processing box, a guide roller is rotationally connected to the inner side of the feeding frame, and friction wheels are rotationally connected to the front end and the rear end of the feeding frame. The limiting mechanism is arranged on the inner side of the feeding frame; wherein the limiting mechanism comprises a two-way lead screw rotationally connected to the inner side of the feeding frame, the surface of the two-way lead screw is in threaded connection with two sliding blocks, and the inner walls of the sliding blocks are fixedly connected with buffering cylinders; according to the device, the two-way lead screw, the buffer rod, the buffer cylinder and the liquid storage cylinder are utilized, the two sets of limiting wheels are close to each other and flexibly abut against the two ends of the plastic uptake sheet rolled into the roller shape, the situation that the plastic uptake sheet on the discharging roller is deformed due to the fact that the abutting force of the limiting wheels is large is avoided, and then the unwinding and feeding effect of the plastic uptake sheet is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of blister sheet unwinding and loading, and particularly relates to a blister sheet unwinding and loading device. Background Art

[0002] A blister sheet is a plastic processing technology material. The main principle is to heat and soften a flat plastic sheet, and then use vacuum adsorption on the surface of a mold and form it after cooling. This material is widely used in industries such as plastic packaging, lighting, advertising, and decoration. During the processing of blister sheets, a device is usually used to unwind the plastic sheet from a reel and feed it into a processing device or production line.

[0003] After retrieval, the Chinese patent "A Plastic Packaging Box Blister Processing Equipment" with the authorization announcement number "CN210679679U" realizes the limitation of both sides of the blister sheet and the pressing of the blister sheet by adjusting a screw rod, a hand wheel, a positioning plate, a spring and a pressing wheel, ensuring that the blister sheet can correctly enter the heating device, and further ensuring the effect of blister sheet unwinding and loading.

[0004] After the above-mentioned blister sheet is unwound and unfolded, its surface will be thinner. Only driving the positioning plate to move by the screw rod is likely to cause the contact force of the positioning plate to be too large, resulting in deformation of the blister sheet, and further affecting the effect of blister sheet unwinding and loading.

[0005] Therefore, a blister sheet unwinding and loading device is proposed to solve the above problems. Content of the Utility Model

[0006] The purpose of the utility model is to provide a blister sheet unwinding and loading device to solve the above problems, and improve the problem that the contact force of the positioning plate is too large, resulting in deformation of the blister sheet.

[0007] The present utility model realizes the above object through the following technical solutions. A plastic sheet uncoiling and loading device includes: a processing box, on one side of the processing box there is a loading rack, inside the loading rack there is a guide roller rotatably connected, and at both the front and rear ends of the loading rack there are friction wheels rotatably connected; a limiting mechanism, the limiting mechanism is arranged inside the loading rack; wherein, the limiting mechanism includes a bidirectional lead screw rotatably connected inside the loading rack, on the surface of the bidirectional lead screw there are two sliders threadedly connected, inside the inner wall of the slider there is a buffer cylinder fixedly connected, inside the buffer cylinder there is a buffer rod slidably connected, the other end of the buffer rod is fixedly connected with a sliding frame, inside the sliding frame there is a limiting wheel rotatably connected, at the front end of the loading rack there is a liquid storage cylinder fixedly connected, inside the liquid storage cylinder there is a liquid storage rod slidably connected, one end of the liquid storage cylinder is communicated with a hose, and the other end of the hose is communicated with one end of the buffer cylinder. By using the bidirectional lead screw, buffer rod, buffer cylinder and liquid storage cylinder, it is realized that the two limiting wheels approach each other and flexibly abut against both ends of the plastic sheet rolled into a roller shape, avoiding the deformation of the plastic sheet on the unwinding roller caused by the large abutting force of the limiting wheels, and thus improving the effect of plastic sheet uncoiling and loading.

[0008] Preferably, at the front end of the loading rack there is a fixed frame fixedly connected, and at the rear end of the fixed frame there is an elastic ball fixedly connected. By using the fixed frame and the elastic ball, it is realized to observe the abutting force of the limiting wheel on the unwinding roller material, avoiding the excessive abutting of the limiting wheel on the plastic sheet rolled into a roller shape, and thus avoiding the deformation of the plastic sheet.

[0009] Preferably, at the relative ends of the buffer rod and the buffer cylinder there is a first spring fixedly connected.

[0010] Preferably, at one end of the inner wall of the liquid storage cylinder there is a second spring fixedly connected, and the other end of the second spring is fixedly connected to one end of the liquid storage rod. By using the first spring and the second spring, it is realized that a part of the hydraulic oil in the liquid storage cylinder flows back into the buffer cylinder, ensuring that there is a corresponding amount of hydraulic oil in the buffer cylinder for the next flexible limiting of the plastic sheet rolled into a roller shape by the limiting wheel.

[0011] Preferably, inside the loading rack there is a pressure roller, at the top of the pressure roller there is a third spring fixedly connected, and the top end of the third spring is fixedly connected to the inner top wall of the loading rack. By using the third spring and the pressure roller, it is realized to limit the plastic sheet, ensuring that the plastic sheet will not deviate when being conveyed into the processing box.

[0012] Preferably, at the bottoms of the slider and the sliding frame there are ball bearings rollingly connected, and the surface of the ball bearings is rollingly connected to the top of the loading rack.

[0013] Preferably, the limiting wheel is a silicone member. By using the limiting wheel of the silicone member, it ensures the softness of the limiting wheel abutting against the end face of the plastic sheet rolled into a roller shape.

[0014] Preferably, scale lines are provided on the surface of the liquid storage rod. By using the scale lines, the moving distance of the liquid storage rod in the liquid storage cylinder can be observed, which is convenient for the two groups of limiting wheels to flexibly abut against the end faces of the plastic sheet rolled into a roller shape.

[0015] The beneficial effects of the present utility model are as follows:

[0016] 1. By using the bidirectional lead screw, the buffer rod, the buffer cylinder and the liquid storage cylinder, the two groups of limiting wheels are made to approach each other and flexibly abut against both ends of the plastic sheet rolled into a roller shape, avoiding the deformation of the plastic sheet on the unwinding roller caused by the too large abutting force of the limiting wheels, thereby improving the effect of unwinding and feeding the plastic sheet;

[0017] 2. By using the fixing frame and the elastic ball, the abutting force of the limiting wheel against the unwinding roller material can be observed, avoiding the excessive abutment of the limiting wheel against the plastic sheet rolled into a roller shape, and thus avoiding the deformation of the plastic sheet;

[0018] 3. By using the third spring and the pressure roller, the limiting of the plastic sheet is realized, ensuring that the plastic sheet will not deviate when being conveyed into the processing box. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0020] Figure 2 is a sectional view of the loading rack and the limiting mechanism of the present utility model;

[0021] Figure 3 is a schematic diagram of the structure of the limiting mechanism of the present utility model;

[0022] Figure 4 is Figure 3 an enlarged view of A in

[0023] In the figure: 1. Processing box; 2. Loading rack; 3. Guide roller; 4. Friction wheel; 5. Limiting mechanism; 51. Bidirectional lead screw; 52. Slide block; 53. Buffer cylinder; 54. Buffer rod; 55. Slide frame; 56. Limiting wheel; 57. Hose; 58. Liquid storage cylinder; 59. Liquid storage rod; 510. Fixing frame; 511. Elastic ball; 512. Second spring; 513. First spring; 514. Ball; 515. Third spring; 516. Pressure roller. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0025] During specific implementation: As Figures 1-4 shown, a blister sheet unwinding and loading device includes: a processing box 1, a loading rack 2 is provided on one side of the processing box 1, a guide roller 3 is rotatably connected to the inner side of the loading rack 2, and friction wheels 4 are rotatably connected to both the front and rear ends of the loading rack 2; a limiting mechanism 5, the limiting mechanism 5 is arranged on the inner side of the loading rack 2; wherein, the limiting mechanism 5 includes a bidirectional screw rod 51 rotatably connected to the inner side of the loading rack 2, two sliders 52 are threadedly connected to the surface of the bidirectional screw rod 51, a buffer cylinder 53 is fixedly connected to the inner wall of the slider 52, a buffer rod 54 is slidably connected to the inner wall of the buffer cylinder 53, the other end of the buffer rod 54 is fixedly connected to a sliding frame 55, a limiting wheel 56 is rotatably connected to the inner side of the sliding frame 55, a liquid storage cylinder 58 is fixedly connected to the front end of the loading rack 2, a liquid storage rod 59 is slidably connected to the inner wall of the liquid storage cylinder 58, one end of the liquid storage cylinder 58 is communicated with a hose 57, the other end of the hose 57 is communicated with one end of the buffer cylinder 53, a fixed frame 510 is fixedly connected to the front end of the loading rack 2, an elastic ball 511 is fixedly connected to the rear end of the fixed frame 510, rolling balls 514 are rotatably connected to the bottoms of the slider 52 and the sliding frame 55, the surface of the rolling ball 514 is rollingly connected to the top of the loading rack 2, the limiting wheel 56 is a silicone member, scale lines are provided on the surface of the liquid storage rod 59, a first spring 513 is fixedly connected to the opposite ends of the buffer rod 54 and the buffer cylinder 53, and a second spring 512 is fixedly connected to one end of the inner wall of the liquid storage cylinder 58, and the other end of the second spring 512 is fixedly connected to one end of the liquid storage rod 59.

[0026] A sliding rod is fixedly connected to the inner side of the loading rack 2, the inner wall of the slider 52 is slidably connected to the surface of the sliding rod, the surfaces of the sliding rod and the bidirectional screw rod 51 both penetrate and extend out of the inner wall of the sliding frame 55, a certain amount of hydraulic oil is stored in both the buffer cylinder 53 and the liquid storage cylinder 58, servo motors are fixedly connected to both the front and rear ends of the loading rack 2, and the output shaft of the servo motor is fixedly connected to one end of the friction wheel 4.

[0027] When the plastic sheet needs to be unrolled and loaded, place the unrolling roller on the friction wheel 4, rotate the bidirectional lead screw 51. The rotation of the bidirectional lead screw 51 drives the two sliders 52 to approach each other. The movement of the sliders 52 drives the movement of the buffer cylinder 53, the buffer rod 54, the sliding frame 55 and the limiting wheel 56, so that the limiting wheel 56 of the silicone member abuts against the end face of the plastic sheet rolled into a roller shape. The sliders 52 continue to move and drive the buffer cylinder 53 to move on the buffer rod 54, so that the hydraulic oil in the liquid storage cylinder 58 flows into the buffer cylinder 53 through the hose 57. At this time, the liquid storage rod 59 moves away from the elastic ball 511, and the elastic ball 511 has no contact with the liquid storage rod 59. The elasticity of the elastic ball 511 deforms and the position of the scale line on the liquid storage rod 59 on the liquid storage cylinder 58, so that the worker can easily observe the specific situation that occurs. Then stop rotating the bidirectional lead screw 51, so that the limiting wheels 56 of the two groups of silicone members perform flexible limiting on the end face of the plastic sheet rolled into a roller shape. At this time, the friction wheel 4 rotates to drive the unrolling roller to rotate, and the feeding roller rotates to loosen the plastic sheet, so that the plastic sheet is stably conveyed into the processing box 1 for processing and production.

[0028] As Figure 2 shown, a pressure roller 516 is provided inside the loading rack 2. A third spring 515 is fixedly connected to the top of the pressure roller 516, and the top end of the third spring 515 is fixedly connected to the inner top wall of the loading rack 2. The pressure roller 516 includes a pressure wheel and a moving block. The surface of the moving block is slidably connected to the front and rear ends of the loading rack 2. One end of the pressure wheel is rotatably connected to the inner wall of the moving block, and the bottom end of the third spring 515 is fixedly connected to the top of the moving block.

[0029] The elastic force of the third spring 515 pushes the pressure roller 516 downward, so that the pressure roller 516 abuts against the plastic sheet to limit the conveyed plastic sheet.

[0030] When the utility model is in use, place the unrolling roller on the friction wheel 4. Through the bidirectional lead screw 51, the slider 52, the buffer cylinder 53, the buffer rod 54, and the sliding frame 55, drive the limiting wheel 56 of the silicone member to abut against the end face of the plastic sheet rolled into a roller shape. The sliders 52 continue to move and drive the buffer cylinder 53 to move on the buffer rod 54, so that the hydraulic oil in the liquid storage cylinder 58 flows into the buffer cylinder 53 through the hose 57. At this time, the liquid storage rod 59 moves away from the elastic ball 511, and the elastic ball 511 has no contact with the liquid storage rod 59. The elasticity of the elastic ball 511 deforms and the position of the scale line on the liquid storage rod 59 on the liquid storage cylinder 58, so that the worker can easily observe the specific situation that occurs. Then stop rotating the bidirectional lead screw 51, so that the limiting wheels 56 of the two groups of silicone members perform flexible limiting on the end face of the plastic sheet rolled into a roller shape. The elastic force of the third spring 515 pushes the pressure roller 516 downward, so that the pressure roller 516 abuts against the plastic sheet to limit the conveyed plastic sheet. At this time, the friction wheel 4 rotates to drive the unrolling roller to rotate, and the feeding roller rotates to loosen the plastic sheet, so that the plastic sheet is stably conveyed into the processing box 1 for processing and production.

[0031] It should be noted that in the above description, the elastic ball 511, the processing box 1, the loading rack 2, the friction wheel 4, the servo motor, etc. are all devices with relatively mature applications in the prior art. The specific models can be selected according to actual needs. At the same time, the power supply for the processing box 1 and the servo motor can be an internal power supply or a mains power supply. The specific power supply method is selected according to the situation and will not be elaborated here.

[0032] In addition, it should be understood that although this specification is described according to the embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A blister sheet unwinding and feeding device, characterized in that: include: A processing box (1), wherein a loading rack (2) is provided on one side of the processing box (1), a guide roller (3) is rotatably connected to the inner side of the loading rack (2), and friction wheels (4) are rotatably connected to the front and rear ends of the loading rack (2); A limiting mechanism (5), wherein the limiting mechanism (5) is arranged on the inner side of the loading rack (2); The limiting mechanism (5) comprises a bidirectional screw rod (51) rotatably connected to the inner side of the loading rack (2); the surface of the bidirectional screw rod (51) is threadedly connected with two sliders (52); the inner wall of the slider (52) is fixedly connected with a buffer cylinder (53); the inner wall of the buffer cylinder (53) is slidably connected with a buffer rod (54); the other end of the buffer rod (54) is fixedly connected with a slide frame (55); the inner side of the slide frame (55) is rotatably connected with a limiting wheel (56); the front end of the loading rack (2) is fixedly connected with a liquid storage cylinder (58); the inner wall of the liquid storage cylinder (58) is slidably connected with a liquid storage rod (59); one end of the liquid storage cylinder (58) is connected with a hose (57); the other end of the hose (57) is connected with one end of the buffer cylinder (53).

2. A blister sheet unwinding and feeding device according to claim 1, characterized in that: The front end of the loading rack (2) is fixedly connected to a fixing rack (510), and the rear end of the fixing rack (510) is fixedly connected to an elastic ball (511).

3. The unwinding and feeding device for blister sheets according to claim 1, characterized in that: The buffer rod (54) and the buffer cylinder (53) are fixedly connected with a first spring (513) at the opposite end.

4. The unwinding and feeding device for blister sheets according to claim 1, characterized in that: One end of the inner wall of the liquid storage cylinder (58) is fixedly connected to a second spring (512), and the other end of the second spring (512) is fixedly connected to one end of the liquid storage rod (59).

5. The unwinding and feeding device for blister sheets according to claim 1, characterized in that: A pressure roller (516) is provided on the inner side of the loading rack (2), a third spring (515) is fixedly connected to the top of the pressure roller (516), and the top end of the third spring (515) is fixedly connected to the inner top wall of the loading rack (2).

6. A blister sheet unwinding and feeding device according to claim 5, characterized in that: The bottoms of the sliding block (52) and the sliding frame (55) are both rollingly connected with balls (514), and the surfaces of the balls (514) are rollingly connected to the top of the loading rack (2).

7. The unwinding and feeding device for blister sheets according to claim 1, characterized in that: The limiting wheel (56) is a silicone component.

8. The unwinding and feeding device for blister sheets according to claim 1, characterized in that: The surface of the liquid storage rod (59) is provided with scale lines.

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