Distributor for film roll co-extrusion

Abstract

The invention relates to the technical field of film material production equipment, and discloses a distributor for film roll co-extrusion, which comprises a distributor main body, a discharge baffle, a stop block and a width adjusting structure. The distributor main body comprises a first material channel and a second material channel; the second material channel is provided with a second outlet; the discharging baffle is fixedly connected with the distributor body to jointly form an outlet and a second outlet of the first material channel. The stop block is arranged at the second outlet and abuts against the discharging baffle. The width adjusting structure is installed on the distributor body, connected with the material stopping block and used for driving the material stopping block to slide in the width direction of the second material channel so as to change the width of the second outlet. According to the distributor, the width of the second material channel can be adjusted to be smaller than that of the first material channel, so that slitter edges formed by slitting in subsequent production are only non-mixed materials, the recycling value is high, and the distributor is suitable for composite material film roll production scenes.

Description

Technical Field

[0001] This invention relates to the field of membrane production equipment technology, and in particular to a distributor for membrane roll co-extrusion. Background Technology

[0002] The production of composite membrane rolls requires the use of co-extrusion. The waste edges of the membrane produced by co-extrusion, which are cut before winding, have low recycling value because they are a mixture of multiple materials. Summary of the Invention

[0003] The present invention aims to improve at least one technical problem in the prior art.

[0004] This invention provides a dispenser for film roll co-extrusion, comprising: The dispenser body includes a first material channel and a second material channel, the second material channel including a second outlet; A discharge baffle is fixedly connected to the distributor body, and the discharge baffle and the distributor body together form the outlet of the first material channel and the second outlet; A material blocking block is provided at the second outlet, and the side of the material blocking block facing outward from the second outlet abuts against the discharge baffle. A width-adjusting structure is installed on the distributor body and connected to the baffle block, used to drive the baffle block to slide along the width direction of the second material channel to change the width of the second outlet.

[0005] The beneficial effects of this invention are as follows: The distributor body includes a first material channel and a second material channel, and the second material channel includes a second outlet. The discharge baffle is fixedly connected to the distributor body and together forms the outlet of the first material channel and the second outlet. The baffle block is set at the second outlet and abuts against the discharge baffle on the side facing outward from the second outlet. The width adjustment structure is installed on the distributor body and connected to the baffle block to drive the baffle block to slide along the width direction of the second material channel to change the width of the second outlet. This enables the width of the second material channel to be adjusted to be smaller than that of the first material channel, so that the waste edge formed by subsequent production cutting is only non-mixed material with high recycling value.

[0006] As a sub-solution of the above technical solution, the width adjustment structure includes a transmission groove, a transmission block, and a locking structure. The transmission groove is formed on the stop block, and the transmission block is at least partially accommodated within the transmission groove. The locking structure is used to lock the transmission block at different positions on the distributor body along the width direction of the second material channel. The width adjustment structure, including the transmission groove formed on the stop block, the transmission block at least partially accommodated within the transmission groove, and the locking structure for locking the transmission block at different positions on the distributor body along the width direction of the second material channel, can stably achieve an adjustment of the width of the second material channel to be smaller than the first material channel, thereby ensuring that the waste edges formed by subsequent cutting are only non-mixed materials, effectively improving the recycling value.

[0007] As a sub-solution of the above technical solution, the locking structure includes a screw hole and a screw rod, one of which is located on the transmission block and the other on the distributor body; the screw hole and the screw rod are threadedly connected, and the transmission block is rotatably accommodated in the transmission groove. This structure allows for precise adjustment of the width of the second material channel to be smaller than the first material channel, ensuring that the waste edges formed by subsequent cutting are only non-mixed material, further increasing its recycling value.

[0008] As some sub-solutions of the above technical solution, the distributor further includes an outer support, which includes a nut portion and a screw hole disposed on the nut portion; the distributor body includes a side hole extending along the width direction of the second material channel, and the outer end of the screw passes through the side hole and is threadedly connected to the screw hole; the distributor also includes an active space for avoiding the movement of the transmission block, and the active space communicates with the outside through the side hole. This allows the width of the second material channel to be smoothly adjusted to be smaller than the first material channel, ensuring that the waste edges formed by subsequent production cutting are only non-mixed materials, thus guaranteeing the stable recycling value of the waste edges.

[0009] As some sub-solutions of the above technical solution, the distributor body includes a receiving cavity that communicates with the side hole, and the movable space is a part of the receiving cavity; the distributor also includes a channel partition, which is disposed within the receiving cavity and defines a first material channel and a second material channel within the receiving cavity; a guide hole is provided on the side of the channel partition facing the side hole; a guide post is also connected to the transmission block, which extends into the guide hole and slides in cooperation with it; the discharge baffle is sealed to the channel partition on the side facing the second material channel. This structure reliably enables the width of the second material channel to be adjusted to be smaller than that of the first material channel, thereby ensuring that the waste edges formed by subsequent production cutting are only non-mixed materials, improving the stability of the waste edge recycling value.

[0010] As a sub-solution of the above technical solution, the dispenser further includes a side locking plate. The accommodating cavity extends through one side along the width direction of the second material channel. The side locking plate is detachably connected to the dispenser body. The side locking plate presses the channel partition tightly against the dispenser body at the through side of the second material channel. The side locking plate also includes a clearance hole through which the screw protrudes. This structure allows the width of the second material channel to be reliably adjusted to be smaller than that of the first material channel, ensuring that the waste edges formed by subsequent cutting are only non-mixed materials, thus guaranteeing the recycling value of the waste edges.

[0011] As a sub-solution of the above technical solution, the dispenser further includes a sealing gasket disposed between the dispenser body and the side locking plate. One side of the sealing gasket abuts against the side locking plate, and the other side of the sealing gasket abuts against the side of the dispenser body and the channel partition. This structure can reliably improve the sealing performance of the dispenser body, side locking plate, and channel partition through the sealing gasket, which helps to reduce the possibility of material mixing in the first material channel and the second material channel due to leakage.

[0012] As a sub-solution of the above technical solution, the distributor further includes a sealing ring and a sealing ring pressing block. The screw has a central optical axis section, and the sealing ring is fitted onto this section. The lateral locking plate has a guide surface that gradually narrows towards the distributor body on its side away from the distributor body. The sealing ring is pressed tightly against the guide surface by the sealing ring pressing block, causing the inner wall of the sealing ring to adhere tightly to the optical axis section. This structure can stably improve the sealing performance of the distributor body, lateral locking plate, and channel partition, thus reducing the possibility of contamination of the materials in the first and second material channels due to leakage.

[0013] As a sub-solution of the above technical solution, the distributor further includes a locking nut, which is threadedly connected to the screw and abuts against the nut portion or the outer bracket. By setting the locking nut, the screw can be locked, thereby effectively improving the installation stability of the stop block.

[0014] As some sub-solutions of the above technical solution, the number of the material blocking blocks is two, and the two material blocking blocks are symmetrically arranged about the main body of the distributor. The number of the width adjustment structures is two sets, and the two sets of width adjustment structures are rotationally symmetrical about the center of the main body of the distributor. Attached Figure Description

[0015] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a schematic diagram of the structure of a distributor for film roll co-extrusion according to the present invention. Figure 1 ; Figure 2 This is a bottom view of a distributor for film roll co-extrusion according to the present invention; Figure 3 for Figure 2 A magnified view of a portion of point A in the middle.

[0016] In the attached image: 1-Distributor body; 10-Sealing ring; 11-First material channel; 12-Second material channel; 121-Second outlet; 13-Side hole; 14-Accommodation cavity; 15-Sealing ring pressure block; 3-Stop block; 4- Width adjustment structure; 41- Transmission groove; 42- Transmission block; 421- Guide post; 43- Locking structure; 431- Screw hole; 432- Screw; 5-Outer bracket; 51-Nut part; 52-Locking nut; 6-Activity space; 7-Channel partition; 71-Guide hole; 8-Side locking plate; 81-Allowing hole; 82-Guide surface; 9-Sealing gasket. Detailed Implementation

[0017] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein 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 and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0018] The following is combined Figures 1 to 3 Embodiments of the present invention will be described.

[0019] In distributors used for co-extrusion of membrane rolls, the width of the second material channel 12 is usually the same as the width of the first material channel 11 or cannot be adjusted to a smaller size. This results in the waste edges generated during subsequent production processes containing a mixture of different materials, requiring complex separation processing during recycling and resulting in low recycling value. Taking the production of composite membrane materials with sound insulation properties as an example, since current composite membrane materials are mostly co-extruded as a whole sheet, meaning the width of the outlet of the membrane substrate and the sound insulation material is the same, the waste obtained from subsequent edge trimming is also a composite material. The edge trimming waste cannot be used as a single material, resulting in low recycling value.

[0020] Therefore, this embodiment provides a distributor for film roll co-extrusion. The distributor includes a distributor body 1, a discharge baffle, a baffle block 3, and a width adjustment structure 4. The distributor body 1 includes a first material channel 11 and a second material channel 12. The second material channel 12 includes a second outlet 121. The discharge baffle is fixedly connected to the distributor body 1, and the discharge baffle and the distributor body 1 together form the outlet of the first material channel 11 and the second outlet 121. The baffle block 3 is disposed at the second outlet 121, and the side of the baffle block 3 facing outward from the second outlet 121 abuts against the discharge baffle. The width adjustment structure 4 is installed on the distributor body 1 and connected to the baffle block 3, and is used to drive the baffle block 3 to slide along the width direction of the second material channel 12 to change the width of the second outlet 121. When the width of the second material channel 12 needs to be adjusted, the width adjustment structure 4 transmits the driving force to the baffle block 3, causing the baffle block 3 to slide along the width direction of the second material channel 12. During the sliding process, the side of the baffle block 3 facing outward from the second outlet 121 always remains in contact with the discharge baffle, preventing material leakage from the gap between them. By sliding the baffle block 3, the width of the second outlet 121 is changed, thereby adjusting the width of the second material channel 12 to be smaller than the width of the first material channel 11. The above improvement ensures that the waste edges formed by cutting in subsequent production are only a single, unmixed material, eliminating the need for complex separation processing and improving the recycling value.

[0021] Furthermore, in one embodiment of the present invention, the width adjustment structure 4 includes a transmission groove 41, a transmission block 42, and a locking structure 43. The transmission groove 41 is formed on the stop block 3, and the transmission block 42 is at least partially accommodated within the transmission groove 41. The locking structure 43 is used to lock the transmission block 42 at different positions on the distributor body 1 along the width direction of the second material channel 12. When the stop block 3 is driven to slide by the width adjustment structure 4, the transmission block 42 moves in coordination within the transmission groove 41, providing guidance for the sliding of the stop block 3. When the stop block 3 slides to the target position, that is, after the width of the second material channel 12 is adjusted to the required size (smaller than the width of the first material channel 11), the locking structure 43 locks the transmission block 42 at the corresponding position on the distributor body 1, thereby keeping the stop block 3 at the target position and improving its structural stability. This structural design improves the stability of the operation of the width adjustment structure 4, ensuring that the width of the second material channel 12 can be stably maintained after adjustment, thereby ensuring that the waste edges produced subsequently remain as non-mixed materials, and improving the stability of the recycling value.

[0022] Furthermore, in one embodiment of the present invention, the locking structure 43 includes a screw hole 431 and a screw 432. One of the screw hole 431 and the screw 432 is disposed on the transmission block 42, and the other is disposed on the distributor body 1. The screw hole 431 and the screw 432 are threadedly connected, and the transmission block 42 is rotatably accommodated in the transmission groove 41. When it is necessary to adjust the position of the stop block 3, the screw 432 is rotated. Since the screw 432 is threadedly engaged with the screw hole 431, the rotation of the screw 432 is converted into linear motion along its own axis, thereby pushing or pulling the transmission block 42. The transmission block 42 rotates in the transmission groove 41 to adapt to the change in the direction of motion and drives the stop block 3 to slide along the width direction of the second material channel 12. Through the high-precision engagement of the threaded connection, the stop block 3 can be accurately adjusted to the target position. After the adjustment is completed, the self-locking characteristic of the threaded connection can realize the stable locking of the transmission block 42 without additional locking operation, which improves the convenience of operation. In addition, the threaded connection also has the advantages of stepless adjustment and high adjustment accuracy. This structural design allows for more precise adjustment of the width of the second material channel 12, further ensuring that the waste edge is a non-mixed material and thus better protecting its recycling value.

[0023] Furthermore, in one embodiment of the present invention, the distributor further includes an outer support 5, which includes a nut portion 51 and a screw hole 431 disposed on the nut portion 51; the distributor body 1 includes a side hole 13, which extends along the width direction of the second material channel 12, and the outer end of the screw 432 passes through the side hole 13 and is threadedly connected to the screw hole 431. The distributor also includes an active space 6 for avoiding the movement of the transmission block 42, and the active space 6 communicates with the outside through the side hole 13. The setting of the outer support 5 provides a stable mounting base for the screw hole 431. The screw 432 passes through the side hole 13 and is connected to the screw hole 431 on the nut portion 51. The structure of the side hole 13 extending along the width direction of the second material channel 12 provides guidance and an active space 6 for the linear movement of the screw 432. At the same time, the setting of the active space 6 ensures that the transmission block 42 will not interfere with the distributor body 1 during movement. During operation, rotating the screw 432 causes it to move along the extension direction of the side hole 13, driving the transmission block 42 to move within the movable space 6, which in turn causes the stop block 3 to slide and adjust the width of the second outlet 121. This structural design makes the movement of the screw 432 and the transmission block 42 smoother, and the adjustment process of the width of the second material channel 12 more stable, ensuring that the waste edge continues to maintain the properties of a non-mixed material and that the recycling value remains stable.

[0024] Furthermore, in one embodiment of the present invention, the distributor body 1 includes a receiving cavity 14, which communicates with a side hole 13, and the movable space 6 is a part of the receiving cavity 14; the distributor also includes a channel partition 7, which is disposed in the receiving cavity 14 and defines a first material channel 11 and a second material channel 12 in the receiving cavity 14. A guide hole 71 is provided on the side of the channel partition 7 facing the side hole 13; a guide post 421 is also connected to the transmission block 42, which extends into the guide hole 71 and slides in cooperation with the guide hole 71; the discharge baffle is sealed to the channel partition 7 on the side facing the second material channel 12. The accommodating cavity 14 provides ample and well-organized space for the activity space 6. The channel partition 7 clearly divides the accommodating cavity 14 into a first material channel 11 and a second material channel 12, effectively improving the problem of mixing of the two materials within the channel. When the transmission block 42 moves, the guide post 421 slides along the guide hole 71, providing precise guidance for the movement of the transmission block 42 and preventing it from deviating, thereby ensuring that the stop block 3 slides smoothly in the preset direction. This structural design further improves the accuracy and stability of the width adjustment of the second material channel 12, improves the material mixing problem, better guarantees the non-mixing properties of the waste edge, and increases its recycling value.

[0025] Furthermore, in one embodiment of the present invention, the dispenser further includes a side locking plate 8. The receiving cavity 14 extends through one side along the width direction of the second material channel 12. The side locking plate 8 is detachably connected to the dispenser body 1. The side locking plate 8 presses the channel partition 7 tightly against the dispenser body 1 at the through side of the second material channel 12. The side locking plate 8 also includes a clearance hole 81 through which a screw 432 passes. During installation, the channel partition 7 is first placed into the receiving cavity 14, and then the side locking plate 8 is connected and fixed to the dispenser body 1. The side locking plate 8 applies a pressing force to the channel partition 7 at the through side of the receiving cavity 14, so that the channel partition 7 is firmly fixed to the dispenser body 1, preventing it from loosening. The clearance hole 81 provides reasonable space for the screw 432 to pass through, preventing interference between the screw 432 and the side locking plate 8. When maintenance or replacement of the channel partition 7 is required, the side locking plate 8 can be removed, making the operation convenient. This structural design makes the channel partition 7 more secure, stabilizes the boundary between the first material channel 11 and the second material channel 12, and makes material conveying more reliable. At the same time, it ensures the smooth movement of the screw 432, ensures the smooth adjustment of the width of the second material channel 12, and provides a stable guarantee for the recycling value of the waste edge.

[0026] The insufficient sealing performance between the distributor body 1 and the side locking plate 8 easily leads to material leakage from the gap between them. The leaked material may mix with other materials, affecting the purity of the waste and reducing its recycling value. Further, in one embodiment of the invention, the distributor also includes a sealing gasket 9, which is disposed between the distributor body 1 and the side locking plate 8. One side of the sealing gasket 9 abuts against the side locking plate 8, and the other side abuts against the sides of the distributor body 1 and the channel partition 7. When the side locking plate 8 is installed, it exerts a pressing force on the sealing gasket 9, causing it to elastically deform and tightly adhere to the contact surfaces of the distributor body 1, the side locking plate 8, and the channel partition 7, effectively filling the gaps between the components. In this embodiment, a copper sealing gasket 9 is used. Copper sealing rings have a large volume expansion rate when heated, which helps to more fully fill the gaps and provide better sealing performance. This structural design enhances the sealing between the dispenser body 1 and the side locking plate 8, preventing material leakage from the gap, preventing waste edge mixing caused by leaked material, ensuring the non-mixing properties of the waste edge, and improving the recycling value of the waste edge.

[0027] Similarly, material leakage is prone to occur in the gap between the screw 432 and the side locking plate 8. The leaked material can contaminate the equipment and may mix with other materials, affecting product quality and the recycling value of the waste. To ensure a stable seal between the screw 432 and the side locking plate 8, the present invention also provides a sealing ring 10 and a sealing ring pressing block 15. The middle part of the screw 432 is provided with a light shaft section, and the sealing ring 10 is sleeved on the light shaft section. The side of the side locking plate 8 away from the distributor body 1 is provided with a guide surface 82 that gradually narrows towards the distributor body 1. The sealing ring 10 is pressed tightly onto the guide surface 82 by the sealing ring pressing block 15, driving the inner wall of the sealing ring 10 to be in close contact with the light shaft section. During installation, the sealing ring 10 is fitted onto the optical axis section of the screw 432, and then the sealing ring clamping block 15 is fixed to the side locking plate 8. The sealing ring clamping block 15 applies a clamping force to the sealing ring 10. Under the guidance of the guide surface 82, the sealing ring 10 is subjected to radial extrusion force, and its inner wall tightly adheres to the outer surface of the optical axis section, achieving a seal between the screw 432 and the side locking plate 8. Even if the screw 432 moves along the axis, the sealing ring 10 can always remain in close contact with the optical axis section, continuously performing a sealing function. This structural design effectively prevents material leakage from the gap between the screw 432 and the side locking plate 8, further ensuring the purity of the waste edge and improving its recycling value.

[0028] The threaded connection between the screw 432 and the nut 51 is prone to loosening during long-term use, causing the transmission block 42 to shift position, which in turn changes the width of the second material channel 12, affecting the purity and recycling value of the waste. To ensure a stable connection between the screw 432 and the nut 51, this invention also includes a locking nut 52. The distributor also includes a locking nut 52, which is threadedly connected to the screw 432 and abuts against the nut 51 or the outer bracket 5. After the screw 432 is adjusted to the target position, the locking nut 52 is rotated, causing it to move along the axis of the screw 432 and abut tightly against the nut 51 or the outer bracket 5. The friction between the locking nut 52 and the nut 51 or the outer bracket 5 restricts the rotation of the screw 432, thereby preventing the threaded connection between the screw 432 and the nut 51 from loosening. If the position of the screw 432 needs to be adjusted again, simply rotate the locking nut 52 in the opposite direction to release the lock and perform the adjustment operation. This structural design enhances the stability of the connection between the screw 432 and the nut 51, ensuring that the width of the second material channel 12 remains at the target size over a long period, the non-mixing properties of the waste edge remain stable, and the recycling value is guaranteed in the long term. Understandably, to achieve the locking function of the locking nut 52 on the screw 432, the helix direction of the locking nut 52 is opposite to the helix direction of the screw hole 431. Correspondingly, a locking thread with the opposite thread direction to the screw hole 431 is provided at the corresponding positions of the screw 432 and the locking nut 52. By rotating the locking nut 52 along the locking thread, the locking nut 52 can be tightly pressed against the outer bracket 5 or the nut 51, locking the rotation of the screw 432.

[0029] Furthermore, in one embodiment of the present invention, there are two baffle blocks 3, which are symmetrically arranged about the distributor body 1. There are two sets of width adjustment structures 4, which are rotationally symmetrical about the center of the distributor body 1. When the width of the second material channel 12 needs to be adjusted, both sets of width adjustment structures 4 can be operated simultaneously. Each set of structures drives the corresponding baffle block 3 to slide towards or away from each other along the width direction of the second material channel 12, achieving bidirectional adjustment of the width of the second outlet 121. Compared to a single-set structure, bidirectional adjustment can more quickly adjust the width of the second material channel 12 to a target size smaller than the first material channel 11, and the adjustment range is larger, adapting to different production needs. This structural design improves the flexibility and efficiency of adjusting the width of the second material channel 12, ensuring that waste edges of non-mixed materials can be quickly obtained under different production conditions, protecting the recycling value of waste edges while improving production efficiency.

[0030] The operating principle of the dispenser of the present invention is as follows: The receiving cavity 14 of the dispenser body 1 is divided by the channel partition 7 to form a first material channel 11 and a second material channel 12. The discharge baffle is fixed to the dispenser body 1 and together forms the outlet of the two channels (that is, the outlet included in the first material channel 11 and the second outlet 121 included in the second material channel 12). The side locking plate 8 presses and fixes the channel partition 7 to the dispenser body 1. The sealing gasket 9 enhances the sealing between the side locking plate 8 and the dispenser body 1. Two baffle blocks 3 are symmetrically arranged at the second outlet 121. The position is adjusted by two sets of symmetrical width adjustment structures 4. In the width adjustment structure 4, the transmission block 42 cooperates with the transmission groove 41 of the baffle block 3. The guide post 421 slides with the guide hole 71 of the channel partition 7 to provide guidance for the transmission block 42. The nut portion 51 of the outer bracket 5 provides a screw hole 431. The screw 432 passes through the side hole 13 of the distributor body 1 and the clearance hole 81 of the side locking plate 8 and is threaded into the screw hole 431. Rotating the screw 432 drives the transmission block 42 to slide the stop block 3 along the width direction of the second material channel 12, thereby changing the width of the second outlet 121 and realizing the adjustment requirement that the width of the second material channel 12 is smaller than the width of the first material channel 11. The locking nut 52 locks the screw 432 in the target position, and the sealing ring 10 and the sealing ring pressure block 15 achieve the seal between the screw 432 and the side locking plate 8. During operation, two different materials are output through the first material channel 11 and the adjusted second material channel 12, respectively. Since the width of the second material channel 12 is smaller than that of the first material channel 11, the waste edge formed by subsequent cutting contains a single non-mixed material part, which has a high recycling value.

[0031] The preferred embodiments of the present invention have been described in detail above, but the present disclosure is not limited to the embodiments described. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present invention, and these equivalent modifications or substitutions are all included within the scope defined by the claims of the present disclosure.

[0032] In the description of this invention, unless otherwise explicitly defined, terms such as "set up," "install," and "connect" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this invention in conjunction with the specific content of the technical solution.

Claims

1. A distributor for film roll co-extrusion, characterized in that: include: Distributor body (1), the distributor body (1) includes a first material channel (11) and a second material channel (12), the second material channel (12) includes a second outlet (121); The discharge baffle is fixedly connected to the distributor body (1), and the discharge baffle and the distributor body (1) together form the outlet of the first material channel (11) and the second outlet (121). A baffle block (3) is provided at the second outlet (121), and the side of the baffle block (3) facing outward from the second outlet (121) abuts against the discharge baffle. Width adjustment structure (4) is installed on the distributor body (1) and connected to the baffle block (3) to drive the baffle block (3) to slide along the width direction of the second material channel (12) to change the width of the second outlet (121).

2. A distributor for film roll co-extrusion according to claim 1, characterized in that: The width adjustment structure (4) includes a transmission groove (41), a transmission block (42), and a locking structure (43). The transmission groove (41) is formed on the stop block (3). The transmission block (42) is at least partially housed in the transmission groove (41). The locking structure (43) is used to lock the transmission block (42) at different positions on the distributor body (1) along the width direction of the second material channel (12).

3. A distributor for film roll co-extrusion according to claim 2, characterized in that: The locking structure (43) includes a screw hole (431) and a screw (432). One of the screw hole (431) and the screw (432) is provided on the transmission block (42), and the other is provided on the distributor body (1). The screw hole (431) and the screw (432) are threadedly connected, and the transmission block (42) is rotatably accommodated in the transmission groove (41).

4. A distributor for film roll co-extrusion according to claim 3, characterized in that: The distributor also includes an outer bracket (5), which includes a nut portion (51) and a screw hole (431) disposed on the nut portion (51); The distributor body (1) includes a side hole (13) that extends along the width direction of the second material channel (12). The outer end of the screw (432) passes through the side hole (13) and is threadedly connected to the screw hole (431). The distributor also includes an active space (6) for avoiding the movement of the transmission block (42). The active space (6) is connected to the outside through the side hole (13).

5. A distributor for film roll co-extrusion according to claim 4, characterized in that: The dispenser body (1) includes a receiving cavity (14), which is connected to the side hole (13), and the active space (6) is a part of the receiving cavity (14); The dispenser also includes a channel partition (7), which is disposed in the accommodating cavity (14). The channel partition (7) defines the accommodating cavity (14) into the first material channel (11) and the second material channel (12). The channel partition (7) has a guide hole (71) on the side facing the side hole (13). The transmission block (42) is also connected to a guide post (421), which extends into the guide hole (71) and slides in cooperation with the guide hole (71); The discharge baffle is sealed to the channel partition (7) on the side facing the second material channel (12).

6. A distributor for film roll co-extrusion according to claim 5, characterized in that: The dispenser also includes a side locking plate (8), the receiving cavity (14) extends through one side of the width direction of the second material channel (12), the side locking plate (8) is detachably connected to the dispenser body (1), the side locking plate (8) presses the channel partition (7) tightly onto the dispenser body (1) at the through side of the second material channel (12), the side locking plate (8) also includes a clearance hole (81), the screw (432) passes through the clearance hole (81).

7. A distributor for film roll co-extrusion according to claim 6, characterized in that: The dispenser also includes a sealing gasket (9), which is disposed between the dispenser body (1) and the side locking plate (8). One side of the sealing gasket (9) abuts against the side locking plate (8), and the other side of the sealing gasket (9) abuts against the side of the dispenser body (1) and the channel partition (7).

8. A distributor for film roll co-extrusion according to claim 7, characterized in that: The distributor also includes a sealing ring (10) and a sealing ring pressing block (15). The screw (432) has an optical axis section in the middle. The sealing ring (10) is sleeved on the optical axis section. The side lock plate (8) has a guide surface (82) that gradually narrows toward the distributor body (1) on the side away from the distributor body (1). The sealing ring (10) is pressed tightly on the guide surface (82) by the sealing ring pressing block (15), causing the inner wall of the sealing ring (10) to be in close contact with the optical axis section.

9. A distributor for film roll co-extrusion according to claim 6, characterized in that: The distributor also includes a locking nut (52), which is threadedly connected to the screw (432) and abuts against the nut part (51) or the outer bracket (5).

10. A distributor for film roll co-extrusion according to any one of claims 2-9, characterized in that: The number of the baffle blocks (3) is two, and the two baffle blocks (3) are symmetrically arranged about the distributor body (1). The number of the width adjustment structures (4) is two sets, and the two sets of width adjustment structures (4) are rotationally symmetrical about the center of the distributor body (1).

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