Sheet winding and unwinding device for plastic product production

Abstract

The utility model belongs to the field of winding and unwinding devices, and particularly relates to a plastic product production sheet winding and unwinding device which comprises a bottom plate horizontally placed on the ground, a control machine box arranged on the top face of the bottom plate, a motor arranged in the control machine box, a driving shaft coaxially and fixedly connected with an output shaft of the motor, and a connecting ring plate fixedly connected with one end, close to the motor, of the driving shaft in a sleeved mode. An inserting groove is formed between the connecting ring plate and the driving shaft, the driving shaft is sleeved with a sleeve, the end, close to the connecting ring plate, of the sleeve head part is provided with an elastic inclined face, a protruding block is arranged on the elastic inclined face, a rubber strip is arranged on the outer side wall of the sleeve body, and a spring is fixedly connected to the position, at the groove bottom of the inserting groove, of the connecting ring plate. And a pressing bolt is arranged in the bayonet. According to the utility model, the sleeve is clamped with the slot, and the convex block is pressed into the slot through the pressing bolt, so that the sleeve is convenient to disassemble and assemble, and the convenience is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of winding and unwinding devices, in particular to a sheet material winding and unwinding device for producing plastic products. Background Art

[0002] At present, plastic sheets on the market are mainly used for packaging of food, medicine, medical equipment, etc. For example, jelly boxes, dairy packaging boxes, fast food boxes, cold drink containers, trays, microwave ovens, etc. can be used for food packaging. In the process of transporting plastic sheets, winding is often used for transportation, and the winding and unwinding device is very critical.

[0003] There is a winding and unwinding device in the prior art, for example: CN206088586U, the utility model provides a winding and unwinding device, including a supporting main frame, a driving device, a winding drum and a winding wheel; the supporting main frame is provided with a driving device for driving the winding drum to rotate, and a winding wheel for winding is provided on the outer shell of the winding drum; the support seat includes a supporting plate and a bearing seat provided on the supporting plate, and the bearing seats are two and are relatively arranged on both sides of the supporting plate. The winding and unwinding device provided by the utility model is wound around the winding wheel. When the winding is unwound, in order to prevent the speed of the cable-releasing end of the winding from being too fast and breaking the winding, the speed of the winding drum is controlled by the driving device, thereby controlling the speed of the winding wheel, and then realizing the control of the unwinding speed of the winding. A parabolic body is arranged at the front end of the winding. Due to the effect of gravity, the speed of the parabolic body is constantly increasing. The driving device can play the purpose of controlling the speed of the parabolic body, so that the main structure of the cable will not be damaged during the cable-releasing process, and the signal transmission is guaranteed.

[0004] The winding efficiency of the wound object is greatly improved by rotating the wound and unwinding objects. However, due to the large number of objects in the winding process and the inconvenience of disassembly and replacement, a sheet winding and unwinding device for plastic product production is designed, which is easy to disassemble and improves its use efficiency. Utility Model Content

[0005] In view of the above-mentioned defects or deficiencies in the prior art, it is desirable to provide a sheet material unwinding and rewinding device for producing plastic products.

[0006] In the first aspect, the present application provides a sheet unwinding device for producing plastic products, comprising a bottom plate placed horizontally on the ground, a control chassis fixedly installed at one end of the top surface of the bottom plate, a motor fixedly installed inside the control chassis by bolts, a driving shaft coaxially fixedly connected to the motor output shaft, a connecting ring plate fixedly sleeved at one end of the driving shaft close to the motor, a slot provided between the connecting ring plate and the driving shaft, a sleeve for unwinding and rewinding plastic sheets sleeved on the outer side of the driving shaft, the sleeve consisting of an integrally formed sleeve head and a sleeve body, an elastic inclined surface provided at one end of the sleeve head close to the connecting ring plate, a convex block integrally formed on the end surface with a higher elastic inclined surface, a rubber strip provided on the outer side wall of the sleeve body, a spring fixedly connected to the connecting ring plate at the bottom of the slot, a bayonet through the inside and outside is opened on the side wall of the connecting ring plate, the bayonet is adapted to the size of the convex block, the sleeve head of the sleeve can be inserted into the slot and compress the spring until the convex block is inserted into the bayonet, and a pressing bolt for pressing the convex block is slidably inserted into the bayonet.

[0007] According to the technical solution provided in the embodiment of the present application, a controller for controlling the motor is provided on an outer wall of one side of the control chassis, and the controller is connected to the motor via a control line.

[0008] According to the technical solution provided in the embodiment of the present application, a bearing is provided inside a side wall of the control chassis close to the connecting ring plate, the outer wall of the bearing is fixed inside the side wall of the control chassis, and the inner wall of the bearing is fixedly connected to the connecting ring plate.

[0009] According to the technical solution provided in the embodiment of the present application, a blocking ring for limiting the insertion position of the sleeve is provided on the inner wall of the connecting ring plate, the blocking ring is generally in a circular ring shape, the inner diameter of the blocking ring is smaller than the outer diameter of the sleeve, and the distance between the blocking ring and the bayonet is equal to the distance between the sleeve head end and the protrusion.

[0010] According to the technical solution provided in the embodiment of the present application, the driving shaft is cylindrical as a whole, the sleeve is cylindrical as a whole, the inner diameter of the sleeve is greater than or equal to the outer diameter of the driving shaft, the thickness of the sleeve is less than or equal to the width of the slot, and the outer diameter of the sleeve is less than or equal to the inner diameter of the blocking ring.

[0011] According to the technical solution provided in the embodiment of the present application, the spring is sleeved on the outside of the driving shaft, and the length of the spring in a natural state is greater than the distance between the bottom of the slot and the end face of the blocking ring close to the opening.

[0012] According to the technical solution provided in the embodiment of the present application, when the sleeve is inserted into the slot and pressed against the blocking ring, the protrusion and the bayonet are located on the same vertical circular plane.

[0013] To summarize, the technical solution specifically discloses a sheet winding and unwinding device for producing plastic products, which includes a base plate placed horizontally on the ground, a slot is provided between the connecting ring plate and the driving shaft, a sleeve is sleeved on the outer side of the driving shaft, an elastic inclined surface is provided on the sleeve head, a protrusion is provided on the elastic inclined surface, a rubber strip is provided on the outer side wall of the sleeve body, the connecting ring plate is fixedly connected to the bottom of the slot with a spring, a bayonet that passes through the inside and outside is provided on the side wall of the connecting ring plate, and a pressing bolt is provided in the bayonet. During use, the elastic inclined surface is inserted into the slot and the sleeve is rotated until the protrusion on the sleeve is engaged with the bayonet, and the sleeve is taken out and placed by the pressing bolt, thereby achieving the convenience of easy disassembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Other features, objects and advantages of the present application will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings:

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is a schematic diagram of the structure of the utility model without the sleeve installed;

[0017] Figure 3 It is a schematic diagram of a local structure in the utility model;

[0018] Figure 4 It is a structural schematic diagram of the sleeve in the utility model;

[0019] Figure 5 It is a schematic diagram of the structure of a partial vertical section view in the utility model.

[0020] In the figure: 1, base plate; 2, control chassis; 3, motor; 4, driving shaft; 5, connecting ring plate; 51, bayonet; 52, blocking ring; 6, slot; 7, sleeve; 71, elastic slope; 711, bump; 72, rubber strip; 8, spring; 9, push bolt; 10, bearing; 11, controller. DETAILED DESCRIPTION

[0021] The present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the relevant utility model, rather than to limit the utility model. It is also necessary to explain that, for ease of description, only the parts related to the utility model are shown in the accompanying drawings.

[0022] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0023] See also Figure 1-Figure 5A plastic product production sheet winding and unwinding device, a bottom plate 1 is placed horizontally on the ground, a control box 2 is fixedly installed at one end of the top surface of the bottom plate 1, a motor 3 is fixedly installed inside the control box 2 by bolts, the output shaft of the motor 3 is coaxially fixedly connected with a driving shaft 4, the driving shaft 4 is fixedly sleeved with a connecting ring plate 5 at one end close to the motor 3, a slot 6 is provided between the connecting ring plate 5 and the driving shaft 4, a sleeve 7 for winding and unwinding plastic sheets is sleeved on the outer side of the driving shaft 4, the sleeve 7 is composed of an integrally formed sleeve head and a sleeve body, the sleeve head is close to the connecting ring plate 5, and a sleeve 6 is provided between the connecting ring plate 5 and the driving shaft 4. An elastic inclined surface 71 is provided at one end of the connecting ring plate 5, and a protrusion 711 is integrally formed on the higher end surface of the elastic inclined surface 71. A rubber strip 72 is provided on the outer wall of the sleeve body. The connecting ring plate 5 is fixedly connected to a spring 8 at the bottom of the groove of the slot 6. A bayonet 51 that passes through the inside and outside is provided on the side wall of the connecting ring plate 5. The size of the bayonet 51 is adapted to the size of the protrusion 711. The sleeve head of the sleeve 7 can be inserted into the interior of the slot 6 and compress the spring 8 until the protrusion 711 is snapped into the bayonet 51. A pressing bolt 9 for pressing the protrusion 711 is slidably inserted into the bayonet 51.

[0024] Specifically, a controller 11 for controlling the motor 3 is provided on the outer wall of one side of the control chassis 2. The controller 11 is connected to the motor 3 through a control line. The rotation of the motor 3 is controlled by the external controller 11, which improves the safety of the device and avoids the potential dangers of manual switches.

[0025] Specifically, a bearing 10 is provided in a side wall of the control chassis 2 close to the connecting ring plate 5, the outer wall of the bearing 10 is fixed in the side wall of the control chassis 2, and the inner wall of the bearing 10 is fixedly connected to the connecting ring plate 5. The bearing 10 is provided at the rotating part to improve the rotation efficiency and avoid wear during the rotation process.

[0026] Specifically, a blocking ring 52 for limiting the insertion position of the sleeve 7 is provided on the inner wall of the connecting ring plate 5. The blocking ring 52 is generally in a circular shape. The inner diameter of the blocking ring 52 is smaller than the outer diameter of the sleeve 7. The distance between the blocking ring 52 and the bayonet 51 is equal to the distance between the sleeve head end of the sleeve 7 and the protrusion 711, thereby preventing the sleeve 7 from being unable to be snapped into the interior of the slot 6, which causes the disadvantage of this solution.

[0027] Specifically, the driving shaft 4 is cylindrical as a whole, and the sleeve 7 is cylindrical as a whole. The inner diameter of the sleeve 7 is greater than or equal to the outer diameter of the driving shaft 4, the thickness of the sleeve 7 is less than or equal to the width of the slot 6, and the outer diameter of the sleeve 7 is less than or equal to the inner diameter of the blocking ring 52. By setting the radius of the sleeve 7, when the sleeve 7 is inserted into the slot 6, a size mismatch occurs, causing disadvantages of the solution.

[0028] Specifically, the spring 8 is sleeved on the outside of the driving shaft 4, and the length of the spring 8 in its natural state is greater than the distance between the bottom of the slot 6 and the end face of the blocking ring 52 close to the opening, so that after the pressing bolt 9 is pressed, the sleeve 7 is compressed and popped out by the spring 8, making it easy to replace the sleeve 7.

[0029] Specifically, when the sleeve 7 is inserted into the slot 6 and pressed against the blocking ring 52, the protrusion 711 and the bayonet 51 are located on the same vertical circular surface, thereby preventing the protrusion 711 from being unable to engage into the bayonet 51 during the rotation of the sleeve 7 after insertion, thereby preventing the sleeve 7 from being fixed.

[0030] Finally, it should be noted that the motor 3, controller 11 and other components involved in the present invention are all universal standard parts or components known to technical personnel in this field, and their structures and principles are all known to technical personnel through technical manuals or through conventional experimental methods. In the idle space of this device, all the above-mentioned electrical components, which refer to power elements, electrical components, and compatible controllers and power supplies, are connected through wires. The specific connection means should refer to the working principle of the present invention. The electrical connection between each electrical component is completed in a sequential working order, and the detailed connection means are all well-known technologies in the field.

[0031] Working principle: When the sheet material rewinding and unwinding device for plastic products is in use, there are two working states, one is sheet material rewinding and the other is sheet material unwinding, specifically including:

[0032] Sheet winding: firstly, sleeve the empty sleeve 7 onto the outside of the driving shaft 4 and insert it into the slot 6. When the sleeve 7 is pressed against the blocking ring 52, rotate it in place until the protrusion 711 is inserted into the bayonet 51. Then, fix one end of the plastic sheet to the outside of the sleeve 7. Start the motor 3 to realize the winding of the plastic sheet. When the plastic sheet is wound, press the pressing bolt 9 to push the protrusion 711 out of the bayonet 51. Then, the sleeve 7 and the rolled plastic sheet can be removed together to complete the winding operation.

[0033] Sheet unwinding: first, sleeve 7 wound with the plastic sheet is sleeved onto the outside of the driving shaft 4 and inserted into the slot 6. When the sleeve 7 is pressed against the blocking ring 52, it is rotated in place until the protrusion 711 is inserted into the bayonet 51. Then, one end of the plastic sheet is pulled outward, and the motor 3 is started in reverse to realize the unwinding of the plastic sheet. When the plastic sheet is unrolled, press the push bolt 9 to push the protrusion 711 out of the bayonet 51. Then, the empty sleeve 7 can be removed to complete the unwinding operation.

[0034] The above description is only a preferred embodiment of the present application and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the utility model involved in the present application is not limited to the technical solution formed by a specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the concept of the utility model. For example, the above features are replaced with the technical features with similar functions disclosed in the present application (but not limited to) to form a technical solution.

Claims

1. A sheet material unwinding and rewinding device for producing plastic products, characterized in that: The invention comprises a base plate (1) placed horizontally on the ground, a control box (2) is fixedly mounted on one end of the top surface of the base plate (1), a motor (3) is fixedly mounted inside the control box (2) by means of bolts, the output shaft of the motor (3) is coaxially fixedly connected to a driving shaft (4), one end of the driving shaft (4) close to the motor (3) is fixedly sleeved with a connecting ring plate (5), a slot (6) is provided between the connecting ring plate (5) and the driving shaft (4), a sleeve (7) for retracting and unwinding a plastic sheet is sleeved on the outer side of the driving shaft (4), the sleeve (7) is composed of an integrally formed sleeve head and a sleeve body, and one end of the sleeve head close to the connecting ring plate (5) is provided with a spring The elastic inclined surface (71) is provided with a protrusion (711) integrally formed on a higher end surface of the elastic inclined surface (71), a rubber strip (72) is provided on the outer wall of the sleeve body, the connecting ring plate (5) is fixedly connected with a spring (8) at the bottom of the groove of the slot (6), the side wall of the connecting ring plate (5) is provided with a bayonet (51) that passes through inside and outside, the bayonet (51) is adapted to the size of the protrusion (711), the sleeve head of the sleeve (7) can be inserted into the inside of the slot (6) and compress the spring (8) until the protrusion (711) is snapped into the bayonet (51), and a pressing bolt (9) for pressing the protrusion (711) is slidably inserted into the bayonet (51).

2. The sheet material unwinding and rewinding device for producing plastic products according to claim 1, characterized in that: A controller (11) for controlling the motor (3) is provided on an outer wall of one side of the control box (2); the controller (11) is connected to the motor (3) via a control line.

3. The sheet material unwinding and rewinding device for producing plastic products according to claim 1, characterized in that: A bearing (10) is provided in a side wall of the control case (2) close to the connecting ring plate (5); an outer wall of the bearing (10) is fixed in the side wall of the control case (2); and an inner wall of the bearing (10) is fixedly connected to the connecting ring plate (5).

4. The sheet material unwinding and rewinding device for producing plastic products according to claim 1, characterized in that: A blocking ring (52) for limiting the insertion position of the sleeve (7) is provided on the inner wall of the connecting ring plate (5); the blocking ring (52) is in the shape of a circular ring as a whole; the inner diameter of the blocking ring (52) is smaller than the outer diameter of the sleeve (7); and the distance between the blocking ring (52) and the bayonet (51) is equal to the distance between the sleeve head end of the sleeve (7) and the protrusion (711).

5. The sheet material unwinding and rewinding device for producing plastic products according to claim 4, characterized in that: The driving shaft (4) is cylindrical in shape as a whole, the sleeve (7) is cylindrical in shape as a whole, the inner diameter of the sleeve (7) is greater than or equal to the outer diameter of the driving shaft (4), the thickness of the sleeve (7) is less than or equal to the width of the slot (6), and the outer diameter of the sleeve (7) is less than or equal to the inner diameter of the blocking ring (52).

6. The sheet material unwinding and rewinding device for producing plastic products according to claim 1, characterized in that: The spring (8) is sleeved on the outside of the driving shaft (4), and the length of the spring (8) in a natural state is greater than the distance between the bottom of the slot (6) and the end surface of the blocking ring (52) close to the opening.

7. The sheet material unwinding and rewinding device for producing plastic products according to claim 1, characterized in that: When the sleeve (7) is inserted into the slot (6) and pressed against the blocking ring (52), the protrusion (711) and the bayonet (51) are located on the same vertical circular plane.

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