A quantitative winding device for producing polymer plastic film

Abstract

This utility model discloses a quantitative winding device for producing polymer plastic film, relating to the field of plastic film winding technology. It includes a base winding structure, a positioning structure, and a quantitative winding structure. The base is L-shaped. The winding structure includes a bearing fixedly installed on the inner wall of a through hole on the left side of the base, a rotating roller rotatably mounted on the right side of the base via the bearing, a hollow winding roller sleeved on the surface of the rotating roller, and a power component located on the left side of the base to drive the rotating roller to rotate. A cylinder combined with a conical block and a second compression spring linkage mechanism enables rapid locking and releasing of the winding roller, eliminating the need for manual tools, shortening assembly and disassembly time, and significantly improving production efficiency. Furthermore, three sets of symmetrically distributed positioning pins work in conjunction with the first compression spring to ensure a rigid connection between the hollow winding roller and the rotating roller, improving equipment operational stability.

Description

Technical Field

[0001] This utility model relates to the field of plastic film winding technology, and in particular to a quantitative winding device for producing polymer plastic film. Background Technology

[0002] PE protective film is the simplest structural polymer organic compound and the most widely used polymer material in the world today. PE protective film uses special polyethylene (PE) plastic film as its base material and is classified into high-density polyethylene, medium-density polyethylene, and low-density polyethylene protective films according to their density.

[0003] In the continuous production of polymer plastic films, the efficiency of the winding process directly affects the production cost of the film. Traditional winding devices generally suffer from the following problems: most equipment uses bolts or mechanical clips to fix the winding rollers, requiring manual operation of tools for disassembly and assembly, which is time-consuming. To address these shortcomings, we propose a quantitative winding device for polymer plastic film production. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a quantitative winding device for producing polymer plastic films.

[0005] To address the problems existing in the prior art, this utility model adopts the following technical solution: a quantitative winding device for producing polymer plastic film, comprising:

[0006] The base is L-shaped;

[0007] The winding structure includes a bearing fixedly installed on the inner wall of a through hole opened on the left side of the base, a rotating roller rotatably installed on the right side of the base via the bearing, a hollow winding roller sleeved on the surface of the rotating roller, and a power assembly provided on the left side of the base for driving the rotating roller to rotate.

[0008] The positioning structure includes a limiting component disposed inside the rotating roller, and a driving component disposed on the left side of the base for driving the limiting component to work.

[0009] The limiting assembly includes a mounting groove formed on the inner wall of the rotating roller, a guide rod slidably mounted on the inner wall of the mounting groove, a conical block fixedly mounted on the surface of the guide rod, three sets of through holes equidistantly formed on the inner wall of the mounting groove, positioning pins slidably mounted on the inner walls of the three sets of through holes, a guide block fixedly mounted on one side of the positioning pin, three sets of positioning grooves equidistantly formed on the inner wall of the hollow take-up roller, and a first compression spring sleeved on the surface of the positioning pin, wherein the guide block has a conical groove on the side near the conical block;

[0010] The drive assembly includes a cylinder fixedly mounted on the left side of the base, a connecting plate fixedly mounted on the surface of the cylinder, and a push block fixedly mounted on the right side of the connecting plate.

[0011] A quantitative winding structure is disposed on the surface of a rotating roller and is used to calculate the number of rotations of the rotating roller.

[0012] Preferably, one side of the first compression spring is fixedly connected to the inner wall of the mounting groove, and the other end of the first compression spring is fixedly connected to one side of the guide block.

[0013] Preferably, the power assembly includes a first pulley fixedly mounted on the surface of the rotating roller, a motor fixedly mounted on the left side of the base, and a second pulley fixedly mounted on the output end of the motor.

[0014] Preferably, the first pulley and the second pulley are connected by a belt drive.

[0015] Preferably, the quantitative winding structure includes a mounting ring fixedly installed on the left end of the hollow winding roller, a reflective photoelectric sensor fixedly installed on the left side of the base, and a measuring block fixedly installed on the right side of the mounting ring.

[0016] Preferably, the left end of the guide rod extends to the left side of the base and is fixedly mounted with a stop block. A second compression spring is sleeved on the surface of the guide rod. One end of the second compression spring is fixedly connected to the right side of the stop block, and the other end of the second compression spring is fixedly connected to the left end of the mounting ring.

[0017] Preferably, the push block is located to the left of the stop block, and the push block and the stop block are on the same central axis.

[0018] Preferably, the three sets of through holes are arranged in a circumferential array on the inner wall of the mounting groove.

[0019] Compared with the prior art, the beneficial effects of this utility model are:

[0020] 1. By using a cylinder combined with a conical block and a second compression spring linkage mechanism, the take-up roller can be quickly locked and released without the need for manual tools, which shortens the disassembly and assembly time and significantly improves production efficiency. In addition, the three sets of symmetrically distributed positioning pins work together with the first compression spring to ensure a rigid connection between the hollow take-up roller and the rotating roller, thereby improving the stability of equipment operation.

[0021] 2. The measuring block is rotated by the rotating ring along with the rotating roller, and the number of rotations is monitored in real time by the cooperation of the reflective photoelectric sensor and the measuring block. The winding length is calculated by the number of rotations, which reduces material waste and optimizes production costs. Attached Figure Description

[0022] The accompanying drawings are provided to further illustrate the present invention. The illustrative embodiments and descriptions of the present invention are used to explain the present invention and do not constitute an undue limitation. In the drawings:

[0023] Figure 1 This is a three-dimensional first-view schematic diagram of the present invention;

[0024] Figure 2 This is a three-dimensional second-view schematic diagram of the present invention;

[0025] Figure 3 This is a cross-sectional view of the present invention;

[0026] Figure 4 This is a schematic diagram of the orthographic section of the rotating roller of this utility model;

[0027] Figure 5 for Figure 2 Enlarged view of point A in the middle;

[0028] Figure 6 for Figure 3 Enlarged diagram of point B in the middle.

[0029] The components in the diagram are numbered as follows: 10 Base, 20 Rotary Roller, 21 Hollow Rewind Roller, 30 Guide Rod, 31 Conical Block, 32 Positioning Pin, 33 Guide Block, 34 First Compression Spring, 35 Positioning Groove, 40 Cylinder, 41 Connecting Plate, 42 Push Block, 50 First Pulley, 51 Motor, 52 Second Pulley, 60 Mounting Ring, 61 Reflective Photoelectric Sensor, 62 Measuring Block, 70 Stop Block, 71 Second Compression Spring. Detailed Implementation

[0030] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0031] Please see Figure 1-6 This utility model provides a technical solution: a quantitative winding device for producing polymer plastic film, comprising: a base 10, a winding structure, a positioning structure, and a quantitative winding structure.

[0032] The base 10 is L-shaped, and the winding structure includes a bearing fixedly installed on the inner wall of a through hole opened on the left side of the base 10, a rotating roller 20 rotatably installed on the right side of the base 10 via the bearing, a hollow winding roller 21 sleeved on the surface of the rotating roller 20, and a power assembly provided on the left side of the base 10 for driving the rotating roller 20 to rotate.

[0033] The power assembly includes a first pulley 50 fixedly mounted on the surface of the rotating roller 20, a motor 51 fixedly mounted on the left side of the base 10, and a second pulley 52 fixedly mounted on the output end of the motor 51. The first pulley 50 and the second pulley 52 are connected by a belt drive. The motor 51 can drive the second pulley 52 to rotate, and the belt drive can drive the first pulley 50 to rotate, thereby driving the rotating roller 20 to rotate synchronously. When the hollow take-up roller 21 is installed on the rotating roller 20, the rotation of the rotating roller 20 will drive the hollow take-up roller 21 to rotate synchronously, thereby winding the plastic film onto the hollow take-up roller 21.

[0034] A quantitative winding structure is set on the surface of the rotating roller 20 to calculate the number of rotations of the rotating roller 20. The quantitative winding structure includes a mounting ring 60 fixedly installed on the left end of the hollow winding roller 21, a reflective photoelectric sensor 61 fixedly installed on the left side of the base 10, and a measuring block 62 fixedly installed on the right side of the mounting ring 60. The reflective photoelectric sensor 61 is connected to an external PLC counting system. When the rotating roller 20 rotates, it will drive the mounting ring 60 and the measuring block 62 installed on one side of the mounting ring 60 to rotate synchronously. The measuring block 62 records one rotation every time it passes the reflective photoelectric sensor 61. Thus, the winding length can be calculated by the number of rotations. The machine stops after the set value is reached, realizing accurate quantitative winding.

[0035] The positioning structure includes a limiting component disposed inside the rotating roller 20, and a driving component disposed on the left side of the base 10 for driving the limiting component to work. The limiting component includes a mounting groove formed in the inner wall of the rotating roller 20, a guide rod 30 slidably mounted in the inner wall of the mounting groove, a conical block 31 fixedly mounted on the surface of the guide rod 30, three sets of through holes equidistantly formed in the inner wall of the mounting groove, the three sets of through holes being arranged in a circumferential array in the inner wall of the mounting groove, and positioning pins 32 slidably mounted in the inner walls of the three sets of through holes and fixedly mounted in the positioning... The guide block 33 on one side of the pin 32 has three sets of positioning grooves 35 equidistantly opened on the inner wall of the hollow take-up roller 21, and a first compression spring 34 sleeved on the surface of the positioning pin 32. One side of the first compression spring 34 is fixedly connected to the inner wall of the mounting groove, and the other end of the first compression spring 34 is fixedly connected to one side of the guide block 33. When the positioning pin 32 moves to the protruding rotating roller 20, the first compression spring 34 is in a contracted state. When the positioning pin 32 enters the through hole, the first compression spring 34 is in a reset state.

[0036] The guide block 33 has a tapered groove on the side near the tapered block 31. The drive assembly includes a cylinder 40 fixedly installed on the left side of the base 10, a connecting plate 41 fixedly installed on the surface of the cylinder 40, and a push block 42 fixedly installed on the right side of the connecting plate 41. The left end of the guide rod 30 extends to the left side of the base 10 and is fixedly installed with a stop block 70. A second compression spring 71 is sleeved on the surface of the guide rod 30. One end of the second compression spring 71 is fixedly connected to the right side of the stop block 70, and the other end of the second compression spring 71 is fixedly connected to the left end of the mounting ring 60. The push block 42 is located to the left of the stop block 70, and the push block 42 and the stop block 70 are on the same central axis. When the second compression spring 71 is in the reset state, it can drive the tapered block 31 to contact the tapered groove on the guide block 33, thereby driving the three sets of guide blocks 33 away from each other and driving the positioning pin 32 to protrude from the rotating roller 20.

[0037] When the cylinder 40 retracts, it drives the push block 42 to contact the stop block 70. After the cylinder 40 continues to retract, it drives the stop block 70 to move to the right, and drives the guide rod 30 and the conical block 31 to move to the right simultaneously. This drives the conical block 31 away from the guide block 33. At this time, the first compression spring 34 resets and drives the positioning pin 32 into the through hole. At the same time, the second compression spring 71 is in a retracted state. When the cylinder 40 resets and drives the push block 42 to disengage from the stop block 70, the second compression spring 71 resets and drives the conical block 31 and the guide block 33 to reset. At this time, the positioning pin 32 will move to the protruding rotating roller 20.

[0038] When the hollow take-up roller 21 needs to be replaced, the drive cylinder 40 retracts, causing the positioning pin 32 to disengage from the positioning groove 35, thus allowing the hollow take-up roller 21 to be removed. After the new hollow take-up roller 21 is fitted onto the rotating roller 20, the cylinder 40 resets, causing the positioning pin 32 to insert into the positioning groove 35, thereby fixing the hollow take-up roller 21 and the rotating roller 20 together. This enables the take-up roller 20 to be quickly locked and released without the need for manual tools, shortening the disassembly and assembly time and significantly improving production efficiency. Furthermore, the three sets of symmetrically distributed positioning pins 32 work together with the first compression spring 34 to ensure a rigid connection between the hollow take-up roller 21 and the rotating roller 20, improving the stability of equipment operation.

[0039] Specifically, the working principle and operation method of this utility model are as follows:

[0040] Rewind drive:

[0041] The drive motor 51 drives the rotating roller 20 to rotate through the first pulley 50 and the second pulley 52, which in turn drives the hollow take-up roller 21 to rotate synchronously, thereby realizing the continuous winding of the polymer plastic film.

[0042] Quick assembly and disassembly positioning:

[0043] Disassembly: Cylinder 40 retracts and pushes stop 42 to the right, guide rod 30 drives tapered block 31 to disengage from tapered groove on guide block 33, first compression spring 34 resets and drives positioning pin 32 to retract into rotating roller 20, then hollow take-up roller 21 is unlocked.

[0044] Installation: When the cylinder 40 is reset, the second compression spring 71 pushes the conical block 31 to reset, presses against the conical groove on the guide block 33, and forces the three sets of positioning pins 32 to extend outward and insert into the positioning groove 35 of the hollow take-up roller 21 simultaneously, so as to achieve automatic locking.

[0045] Quantitative control:

[0046] When the mounting ring 60 rotates with the rotating roller 20, the measuring block 62 records one rotation every time it passes the reflective photoelectric sensor 61. The winding length is calculated by the number of rotations, and the machine stops when the set value is reached, thus achieving precise quantitative winding.

[0047] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art based on the technical solution and concept of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A quantitative winding device for producing polymer plastic film, characterized in that, include: The base (10) is L-shaped; The winding structure includes a bearing fixedly installed on the inner wall of a through hole opened on the left side of the base (10), a rotating roller (20) rotatably installed on the right side of the base (10) via the bearing, a hollow winding roller (21) sleeved on the surface of the rotating roller (20), and a power assembly provided on the left side of the base (10) for driving the rotating roller (20) to rotate. The positioning structure includes a limiting component disposed inside the rotating roller (20) and a driving component disposed on the left side of the base (10) for driving the limiting component to work. The limiting component includes an installation groove opened on the inner wall of the rotating roller (20), a guide rod (30) slidably installed on the inner wall of the installation groove, a conical block (31) fixedly installed on the surface of the guide rod (30), three sets of through holes opened at equal intervals on the inner wall of the installation groove, positioning pins (32) slidably installed on the inner walls of the three sets of through holes, a guide block (33) fixedly installed on one side of the positioning pin (32), three sets of positioning grooves (35) opened at equal intervals on the inner wall of the hollow take-up roller (21), and a first compression spring (34) sleeved on the surface of the positioning pin (32), and a conical groove is opened on the side of the guide block (33) close to the conical block (31); The drive assembly includes a cylinder (40) fixedly mounted on the left side of the base (10), a connecting plate (41) fixedly mounted on the surface of the cylinder (40), and a pusher (42) fixedly mounted on the right side of the connecting plate (41). A quantitative winding structure is provided on the surface of the rotating roller (20) for calculating the number of rotations of the rotating roller (20).

2. The quantitative winding device for producing polymer plastic film according to claim 1, characterized in that: One side of the first compression spring (34) is fixedly connected to the inner wall of the mounting groove, and the other end of the first compression spring (34) is fixedly connected to one side of the guide block (33).

3. The quantitative winding device for producing polymer plastic film according to claim 1, characterized in that: The power assembly includes a first pulley (50) fixedly mounted on the surface of the rotating roller (20), a motor (51) fixedly mounted on the left side of the base (10), and a second pulley (52) fixedly mounted on the output end of the motor (51).

4. The quantitative winding device for producing polymer plastic film according to claim 3, characterized in that: The first pulley (50) and the second pulley (52) are connected by belt drive.

5. The quantitative winding device for producing polymer plastic film according to claim 1, characterized in that: The quantitative winding structure includes a mounting ring (60) fixedly installed on the left end of the hollow winding roller (21), a reflective photoelectric sensor (61) fixedly installed on the left side of the base (10), and a measuring block (62) fixedly installed on the right side of the mounting ring (60).

6. A quantitative winding device for producing polymer plastic film according to claim 5, characterized in that: The left end of the guide rod (30) extends to the left side of the base (10) and is fixedly installed with a stop block (70). A second compression spring (71) is sleeved on the surface of the guide rod (30). One end of the second compression spring (71) is fixedly connected to the right side of the stop block (70), and the other end of the second compression spring (71) is fixedly connected to the left end of the mounting ring (60).

7. A quantitative winding device for producing polymer plastic film according to claim 6, characterized in that: The push block (42) is located to the left of the stop block (70), and the push block (42) and the stop block (70) are on the same central axis.

8. A quantitative winding device for producing polymer plastic film according to claim 1, characterized in that: All three sets of through holes are arranged in a circular array on the inner wall of the mounting groove.

Images