A heating device for stretch film processing

Abstract

This application discloses a heating device for stretch film processing, belonging to the field of stretch film processing technology. It includes two pressure rollers, each with a connector at both ends and an elastic component inside the connector; two conveying rollers, each located at the bottom of its corresponding pressure roller; a lifting shell fixed between the two pressure rollers via the connectors, the lifting shell being driven to move up and down by external force; a fixed shell located at the bottom of the lifting shell and between the two conveying rollers; and a heating plate located inside the lifting shell and the fixed shell. This application effectively solves the problem in the prior art where operators find it difficult to smoothly pass the film through one side of the roller and outer frame and guide it to the outside of the other side of the roller, achieving the effect of facilitating film passage through the equipment.

Description

Technical Field

[0001] This application relates to the field of stretch film processing technology, and more specifically, to a heating device for stretch film processing. Background Technology

[0002] The processing of stretch film involves a series of consecutive steps, including raw material pretreatment, melt extrusion, directional stretching, cooling and shaping, and finished product winding. Among these steps, a heating device is required to heat and soften the stretch film before directional stretching.

[0003] In related technologies, in order to heat the stretch film on both sides, for example, the prior art patent with publication number CN217777508U provides a heating device for processing stretch film. This device, by setting an outer frame, an infrared heater, a mirror, a fixed frame, a movable frame, a roller, a motor, a support, an electric telescopic rod, and a connecting frame, can ensure that the stretch film is heated evenly on both sides when passing through the outer frame through the cooperation of the outer frame, the infrared heater, and the mirror.

[0004] Although the existing technical solutions mentioned above achieve double-sided heating of the stretch film through infrared heaters and mirrors, in the actual film threading operation, the distance between the upper and lower rollers on the same side remains fixed, and the outer frame also blocks the heating position, making it difficult for operators to smoothly thread the film into the roller and outer frame on one side and guide it to the outside of the roller on the other side, increasing the difficulty of the preliminary preparation work.

[0005] In view of this, we propose a heating device for stretch film processing. Utility Model Content

[0006] The purpose of this application is to provide a heating device for stretch film processing, which can effectively solve the problem in the prior art that it is difficult for operators to smoothly pass the film through the roller and outer frame on one side and guide it to the outside of the roller on the other side, thus achieving the effect of facilitating the passage of the film through the equipment.

[0007] This application provides a heating device for stretch film processing, comprising:

[0008] The pressure roller has two parts, and each end of the pressure roller has a connector, and the inner side of the connector has an elastic component.

[0009] There are two conveying rollers, each located at the bottom of a corresponding pressure roller.

[0010] The lifting shell is fixedly installed between the two pressure rollers by the connecting piece, and the lifting shell is driven by external force to perform lifting and lowering actions.

[0011] A fixed housing is located at the bottom of the lifting housing and between the two conveying rollers;

[0012] The heating plate is located inside the lifting shell and the fixed shell.

[0013] As an optional solution to the technical solution of this application, the two ends of the conveying roller are rotatably disposed on the inner side of the bearing plate B, and the bearing plate B is fixedly disposed on the outer side of the fixed shell.

[0014] As an optional solution to the technical solution of this application, the inner side of the connector is provided with a sliding groove, the elastic component includes a bearing plate A, the bearing plate A is slidably disposed with respect to the sliding groove, one end of the pressure roller is rotatably disposed on the inner side of the bearing plate A, a spring is detachably disposed on the top of the bearing plate A, the spring is fixedly disposed on the bottom of the fixing plate, and the fixing plate is detachably disposed on the top of the connector by bolts.

[0015] As an optional solution to the technical solution of this application, a threaded moving ring is fixedly provided on the inner side of the heating plate, and two threaded moving rings are respectively threaded on both ends of the bidirectional screw. The bidirectional screw is rotatably provided on the inner side of the lifting shell, and a knob is fixedly provided on the top of the bidirectional screw.

[0016] A sliding rod is fixedly installed on the inner side of the fixed shell, and the heating plate and the lifting shell are slidably installed on the inner side of the sliding rod.

[0017] As an optional solution to the technical solution of this application, the bottom of the bidirectional lead screw is provided with a flower hole, and the top of the fixed shell is provided with a flower shaft corresponding to the bidirectional lead screw. The flower hole and the flower shaft are slidably arranged, and the lifting shell is fixedly arranged at the output end of the electric push rod.

[0018] As an optional solution to the technical solution in this application, the bottom of the lifting shell is fixedly provided with an extension plate, and the top of the fixed shell is provided with a mating groove corresponding to the extension plate.

[0019] As an optional solution to the technical solution of this application, the lifting shell has openings A on both sides corresponding to the pressure roller and the conveying roller, and the fixed shell has openings B on both sides corresponding to openings A.

[0020] One or more technical solutions provided in the embodiments of this application have at least the following technical effects or advantages:

[0021] (1) This application uses a lifting shell, which is used to transport the film through the cooperation of pressure rollers and fixed rollers. The lifting shell drives the pressure rollers to rise, which opens the device and makes it easy for the film to pass through the two sets of pressure rollers and fixed rollers as well as the lifting shell and fixed shell in the middle. Therefore, it effectively solves the problem in the prior art that it is difficult for operators to smoothly pass the film into the roller and outer frame on one side and guide it to the outside of the roller on the other side, and achieves the effect of making it easy for the film to pass through the equipment.

[0022] (2) This application provides a threaded moving ring on the inner side of the heating plate. By rotating the knob, the bidirectional screw can be rotated, which can drive the two threaded moving rings and the heating plate connected to them to move closer or further apart, thereby adjusting the distance between the heating plate and the film, and thus adjusting the heating intensity. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of a heating device for stretch film processing disclosed in a preferred embodiment of this application;

[0024] Figure 2 This is an exploded structural diagram of the heating device for stretch film processing disclosed in a preferred embodiment of this application;

[0025] Figure 3 This is a schematic diagram of the structure of the pressure roller and the stationary roller in a heating device for stretch film processing disclosed in a preferred embodiment of this application;

[0026] Figure 4 This is a schematic diagram of the structure of the heating plate in a heating device for stretch film processing disclosed in a preferred embodiment of this application;

[0027] Figure 5 This is a schematic diagram of the lifting shell in a heating device for stretch film processing disclosed in a preferred embodiment of this application;

[0028] The following are the labels in the diagram: 1. Pressure roller; 11. Connector; 111. Elastic component; 112. Sliding groove; 1111. Bearing plate A; 1112. Spring; 1113. Fixing plate; 2. Conveying roller; 21. Bearing plate B; 3. Lifting shell; 31. Electric push rod; 32. Extension plate; 33. Opening A; 4. Fixing shell; 41. Flower shaft; 42. Slide rod; 43. Mating groove; 44. Opening B; 5. Heating plate; 51. Threaded moving ring; 52. Double-acting lead screw; 521. Flower hole; 522. Knob. Detailed Implementation

[0029] The present application will be further described in detail below with reference to the accompanying drawings.

[0030] Reference Figure 1This application discloses a heating device for stretch film processing, including two pressure rollers 1. Each pressure roller 1 has a connector 11 at both ends and an elastic component 111 on the inner side of the connector 11. A conveying roller 2 is provided at the bottom of the pressure roller 1. A lifting shell 3 is fixedly provided between the two pressure rollers 1 through the connector 11. The lifting shell 3 is driven by an external force to perform lifting and lowering actions. A fixed shell 4 is provided at the bottom of the lifting shell 3 and is located between the two conveying rollers 2. Heating plates 5 are provided on the inner sides of both the lifting shell 3 and the fixed shell 4. The two ends of the conveying roller 2 are rotatably disposed on the inner side of the bearing plate B21. The bearing plate B21 is fixedly disposed on the outer side of the fixed shell 4.

[0031] When the membrane passes through the device, the lifting shell 3 is driven by external force to move upward away from the fixed shell 4. The lifting shell 3 drives the two pressure rollers 1 away from the conveying roller 2 through the connecting piece 11, thereby opening the lifting shell 3 and the fixed shell 4, the pressure rollers 1 and the conveying roller 2, so that the membrane can pass through.

[0032] After the membrane passes through, the lifting shell 3 is driven downward by external force to reset, which also drives the conveying roller 2 to reset, so that the conveying roller 2 squeezes the mold body. At the same time, the elastic component 111 inside the connector 11 can ensure that the conveying roller 2 elastically presses the membrane body.

[0033] When the membrane is conveyed by the cooperation of the pressure roller 1 and the conveying roller 2, the heating plate 5 inside the lifting shell 3 and the fixed shell 4 can simultaneously heat the upper and lower sides of the membrane to meet the heating requirements of membrane processing.

[0034] Reference Figure 2 and Figure 3 The inner side of the connector 11 is provided with a sliding groove 112. The elastic component 111 includes a bearing plate A1111, which is slidably disposed with respect to the sliding groove 112. One end of the pressure roller 1 is rotatably disposed on the inner side of the bearing plate A1111. A spring 1112 is detachably disposed on the top of the bearing plate A1111. The spring 1112 is fixedly disposed on the bottom of the fixing plate 1113. The fixing plate 1113 is detachably disposed on the top of the connector 11 by bolts.

[0035] Spring 1112 applies a downward pressure to bearing plate A1111 through its own elasticity, thereby causing pressure roller 1 to be under downward pressure and elastically pressing the film. By removing fixing plate 1113 with bolts, spring 1112 can be removed, making it convenient to replace spring 1112.

[0036] Reference Figure 2 and Figure 4A threaded moving ring 51 is fixedly installed on the inner side of the heating plate 5. Two threaded moving rings 51 are respectively threaded on both ends of the bidirectional lead screw 52. The bidirectional lead screw 52 is rotatably installed on the inner side of the lifting shell 3. A knob 522 is fixedly installed on the top of the bidirectional lead screw 52. A slide rod 42 is fixedly installed on the inner side of the fixed shell 4. The heating plate 5 and the lifting shell 3 are slidably installed on the inner side of the slide rod 42. A flower hole 521 is opened at the bottom of the bidirectional lead screw 52. A flower shaft 41 is rotatably installed on the top of the fixed shell 4 corresponding to the bidirectional lead screw 52. The flower hole 521 and the flower shaft 41 are slidably installed. The lifting shell 3 is fixedly installed at the output end of the electric push rod 31.

[0037] The operator can rotate the knob 522 at the end of the bidirectional lead screw 52. The bidirectional lead screw 52 is positioned and engaged with the spiral shaft 41 through the flower hole 521, causing the bidirectional lead screw 52 to rotate. This causes the two threaded moving rings 51 engaged on the outside to move closer or further away synchronously along the axial direction of the bidirectional lead screw 52. The positive and negative thread design of the bidirectional lead screw 52 causes the two threaded moving rings 51 to move in opposite directions. The threaded moving rings 51 are fixedly connected to the heating plate 5, thereby causing the two heating plates 5 to move closer or further away from the membrane surface, thereby adjusting the distance between the heating plate 5 and the membrane and adjusting the heating intensity. The electric push rod 31 is used to drive the lifting shell 3 to rise and fall. When the electric push rod 31 drives the lifting shell 3 to rise, it also drives the bidirectional lead screw 52 to rise. At this time, the bidirectional lead screw 52 engages with the spiral shaft 41 through the flower hole 521, allowing the bidirectional lead screw 52 to slide on the outside of the spiral shaft 41 without affecting the normal rising and falling of the lifting shell 3.

[0038] Reference Figure 2 and Figure 5 The bottom of the lifting shell 3 is fixedly provided with an extension plate 32, and the top of the fixed shell 4 is provided with a mating groove 43 corresponding to the extension plate 32. The two sides of the lifting shell 3 are provided with openings A33 corresponding to the pressure roller 1 and the conveying roller 2, and the two sides of the fixed shell 4 are provided with openings B44 corresponding to the openings A33.

[0039] By replacing the outer frame in the prior art with the lifting shell 3 and the fixed shell 4, the sides near the pressure roller 1 and the conveying roller 2 are shielded, reducing the outflow of hot air inside the lifting shell 3 and the fixed shell 4 and improving heating efficiency. The sealing of the other two sides of the lifting shell 3 and the fixed shell 4 is improved by the cooperation of the extension plate 32 and the mating groove 43. The openings A33 and B44 are used to ensure that the membrane passes through.

[0040] In summary, when the heating device for stretch film processing disclosed in this application is in use, the lifting shell 3 is driven upward by the electric push rod 31 to move away from the fixed shell 4. The lifting shell 3 drives the two pressure rollers 1 away from the conveying roller 2 through the connecting piece 11, thereby opening the lifting shell 3 and the fixed shell 4, the pressure rollers 1 and the conveying roller 2, so that the film can pass through.

[0041] After the membrane passes through, the lifting shell 3 is moved downward and reset by the electric push rod 31, which also drives the conveying roller 2 to reset, so that the conveying roller 2 squeezes the mold body. At the same time, the spring 1112 applies a downward pressure to the bearing plate A1111 through its own elasticity, so that the pressure roller 1 is always subjected to downward pressure, and elastically presses the membrane body.

[0042] When the membrane is conveyed by the cooperation of the pressure roller 1 and the conveying roller 2, the heating plate 5 inside the lifting shell 3 and the fixed shell 4 can simultaneously heat the upper and lower sides of the membrane to meet the heating requirements of membrane processing.

[0043] The operator can rotate the knob 522 at the end of the bidirectional lead screw 52. The bidirectional lead screw 52 is positioned and engaged with the spindle 41 through the flower hole 521, causing the bidirectional lead screw 52 to rotate. This causes the two threaded moving rings 51 on the outer side to move closer or further away synchronously along the axial direction of the bidirectional lead screw 52. The positive and negative thread design of the bidirectional lead screw 52 causes the two threaded moving rings 51 to move in opposite directions. The threaded moving rings 51 are fixedly connected to the heating plate 5, thereby causing the two heating plates 5 to move closer or further away from the membrane surface, thereby adjusting the distance between the heating plate 5 and the membrane and adjusting the heating intensity.

Claims

1. A heating device for stretch film processing, characterized by, Include: Pressure roller (1), two pressure rollers (1) are provided, and each end of the pressure roller (1) is provided with a connector (11), and the inner side of the connector (11) is provided with an elastic component (111); There are two conveying rollers (2), and the two conveying rollers (2) are respectively disposed at the bottom of the corresponding pressure rollers (1); The lifting shell (3) is fixedly installed between the two pressure rollers (1) by the connecting piece (11). The lifting shell (3) is driven by external force to perform lifting action. A fixed housing (4) is located at the bottom of the lifting housing (3) and between the two conveying rollers (2); The heating plate (5) is located inside the lifting shell (3) and the fixed shell (4).

2. The heating device for stretch film processing of claim 1, wherein: The two ends of the conveying roller (2) are rotatably disposed on the inner side of the bearing plate B (21), and the bearing plate B (21) is fixedly disposed on the outer side of the fixed shell (4).

3. The heating device for stretch film processing of claim 1, wherein: The inner side of the connector (11) is provided with a sliding groove (112). The elastic component (111) includes a bearing plate A (1111). The bearing plate A (1111) is slidably disposed with respect to the sliding groove (112). One end of the pressure roller (1) is rotatably disposed on the inner side of the bearing plate A (1111). A spring (1112) is detachably disposed on the top of the bearing plate A (1111). The spring (1112) is fixedly disposed on the bottom of the fixing plate (1113). The fixing plate (1113) is detachably disposed on the top of the connector (11) by bolts.

4. The heating device for stretch film processing of claim 1, wherein: A threaded moving ring (51) is fixedly provided on the inner side of the heating plate (5). The two threaded moving rings (51) are respectively threaded on both ends of the bidirectional screw (52). The bidirectional screw (52) is rotatably provided on the inner side of the lifting shell (3). A knob (522) is fixedly provided on the top of the bidirectional screw (52). A slide rod (42) is fixedly installed on the inner side of the fixed shell (4), and the heating plate (5) and the lifting shell (3) are slidably installed on the inner side of the slide rod (42).

5. The heating device for stretch film processing according to claim 4, characterized in that: The bottom of the bidirectional lead screw (52) is provided with a flower hole (521), and the top of the fixed shell (4) is provided with a flower shaft (41) rotatably arranged corresponding to the bidirectional lead screw (52). The flower hole (521) and the flower shaft (41) are slidably arranged. The lifting shell (3) is fixedly arranged at the output end of the electric push rod (31).

6. The heating device for stretch film processing according to claim 1, characterized in that: The bottom of the lifting shell (3) is fixedly provided with an extension plate (32), and the top of the fixed shell (4) is provided with a mating groove (43) corresponding to the extension plate (32).

7. The heating device for stretch film processing according to claim 1, characterized in that: The lifting shell (3) has openings A (33) on both sides corresponding to the pressure roller (1) and the conveying roller (2), and the fixed shell (4) has openings B (44) on both sides corresponding to the openings A (33).

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