A mold cleaning device

The automated cleaning structure of the mold cleaning device solves the problem of material accumulation at the mold extrusion outlet, improves production efficiency and safety, and achieves efficient cleaning without human intervention.

CN224446786UActive Publication Date: 2026-07-03DONGGUAN XINHUIDA MACHINEY MFG

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
DONGGUAN XINHUIDA MACHINEY MFG
Filing Date
2025-07-15
Publication Date
2026-07-03

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Abstract

This application relates to the field of film production component technology, and in particular to a mold cleaning device, including a frame, a telescopic structure disposed on the frame, and a cleaning structure disposed on the telescopic structure, the cleaning structure being close to or away from the mold; the cleaning structure includes a cleaning slide rail, a sliding seat slidably connected to the cleaning slide rail, a cleaning drive assembly for driving the sliding seat, and a cleaning assembly disposed on the sliding seat; the cleaning slide rail extends along the length direction of the mold; the cleaning assembly includes a mounting base and a cleaning scraper disposed on the mounting base, the cleaning scraper facing the mold. During cleaning, the telescopic structure drives the cleaning structure to move closer to the mold, and the cleaning scraper moves from one side of the cleaning slide rail along its length direction to the other side, cleaning the extrusion opening of the mold head, scraping off residual accumulated material to ensure the normal operation of the mold. The entire process is fast and requires no manual operation, effectively ensuring production efficiency and production safety.
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Description

Technical Field

[0001] This application relates to the field of thin film production component technology, and in particular to a mold cleaning device. Background Technology

[0002] Film production involves multiple sequential processes. Generally, the raw material is first plasticized and melted using an extruder. The molten material is then extruded through a die, flowing in sheet form onto the surface of a steadily rotating cooling roller. The film is cooled and shaped on the cooling roller or in a cooling device, and then pulled, trimmed, and rolled up. Inevitably, some material remains at the die nozzle during extrusion, especially after prolonged operation. This material can accumulate at the nozzle, obstructing subsequent film extrusion and affecting the molding quality. The machine must be stopped, and the accumulated material must be manually scraped off with a scraper or other tools, which is time-consuming, labor-intensive, and poses safety risks. Utility Model Content

[0003] The purpose of this application is to provide a mold cleaning device, which aims to improve the material accumulation problem at the mold extrusion port in related technologies, and improve the production efficiency and safety of the mold.

[0004] This application provides a mold cleaning device, including a mold, a frame, a telescopic structure disposed on the frame, and a cleaning structure disposed on the telescopic structure, the cleaning structure being close to or away from the mold; the cleaning structure includes a cleaning slide rail, a sliding seat slidably connected to the cleaning slide rail, a cleaning drive assembly for driving the sliding seat, and a cleaning assembly disposed on the sliding seat; the cleaning slide rail extends along the length direction of the mold; the cleaning assembly includes a mounting base and a cleaning scraper disposed on the mounting base, the cleaning scraper facing the mold.

[0005] Furthermore, the mounting base includes a fixing block disposed on the sliding base and a locking block detachably connected to the fixing block, and the cleaning scraper is disposed between the fixing block and the locking block.

[0006] Furthermore, the sliding seat is provided with a cleaning cylinder, the piston end of the cleaning cylinder faces the mold, and the mounting seat is disposed on the piston end of the cleaning cylinder.

[0007] Furthermore, the telescopic structure includes a telescopic drive member hinged to the frame and a swing frame disposed on the telescopic drive member. One end of the swing frame is rotatably connected to the frame, and the swing frame has an adapter end that is rotatably connected to the telescopic drive member.

[0008] Furthermore, the telescopic drive component is a cylinder, and the adapter end is provided with a plurality of adapter rods along its length direction, with the piston end of the telescopic drive component connected to one of the adapter rods.

[0009] Furthermore, it also includes a guide rail structure, which includes a sliding guide rail disposed on one side of the mold and a support seat slidably connected to the sliding guide rail, the support seat being close to or away from the cleaning structure.

[0010] The beneficial effects of this application are:

[0011] 1. A mold cleaning device according to this application, by setting a frame, a telescopic structure and a cleaning structure in the mold, and using the telescopic structure to drive the cleaning structure to move by telescopic extension, so that the cleaning structure is close to the mold when cleaning is needed, and away from the mold when cleaning is not needed to avoid affecting production; during cleaning, the cleaning drive component drives the sliding seat to slide along the cleaning slide rail, and the moving sliding seat drives the cleaning component to move, so that the cleaning scraper moves from one side of the cleaning slide rail length direction to the other side of the cleaning slide rail length direction, thereby cleaning the extrusion port of the mold head, scraping off the residual accumulated material to ensure the normal operation of the mold, the whole process is fast and does not require manual operation, thereby ensuring production efficiency and production safety.

[0012] 2. A mold cleaning device according to this application, wherein the cleaning component is provided with a mounting base consisting of a fixing block and a locking block. The locking block can be easily installed and separated from the fixing block. On the one hand, it is convenient to adjust the position of the cleaning scraper. On the other hand, when the cleaning scraper is worn or damaged, the cleaning scraper can be easily repaired or replaced by using the detachable locking block, thereby increasing the convenience of the cleaning device.

[0013] 3. A mold cleaning device of this application, by setting a guide rail structure, uses the sliding guide rail to drive the support base to move. According to actual needs, a container for receiving residual materials or a container for cooling film can be installed on the support base to cooperate with the cleaning structure for receiving waste materials or to cooperate with the mold for film cooling, thereby increasing the applicability of the cleaning device. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of a mold cleaning device provided in an embodiment of this application;

[0015] Figure 2 This is a partial structural schematic diagram of a mold cleaning device provided in an embodiment of this application;

[0016] Figure 3 This is another structural schematic diagram of a mold cleaning device provided in an embodiment of this application;

[0017] Figure 4 yes Figure 3 A magnified view of part A in the middle;

[0018] Figure 5 yes Figure 3 A magnified view of part B in the middle section;

[0019] Figure 6 This is a schematic diagram illustrating the interaction between the guide rail structure and other structures provided in this application embodiment;

[0020] Figure 7 This is a schematic diagram of the guide rail structure in the embodiment of this application.

[0021] Explanation of reference numerals in the attached figures:

[0022] 01. Molding mold structure; 1. Frame; 2. Telescopic structure; 21. Telescopic drive component; 22. Swing frame; 222. Swing fixing seat; 221. Adapter end; 2211. Adapter rod; 3. Cleaning structure; 31. Cleaning slide rail; 311. Cleaning cylinder; 32. Sliding seat; 33. Cleaning drive assembly; 34. Cleaning assembly; 341. Mounting seat; 3411. Fixing block; 3412. Locking block; 342. Cleaning scraper; 4. Guide rail structure; 41. Sliding guide rail; 42. Support seat. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0024] It should be noted that although functional modules are divided in the device schematic diagram and a logical order is shown in the flowchart, in some cases, the steps shown or described may be performed in a different order than the module division in the device or the order in the flowchart. The terms "first," "second," etc., in the specification, claims, and the aforementioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing embodiments of this application only and is not intended to limit this application.

[0026] Reference Figure 1 , Figure 2 as well as Figure 3This application provides a mold cleaning device, including a forming mold structure 01. The forming mold structure 01 includes a mold with a mold head, a frame 1, a telescopic structure 2 disposed on the frame 1, and a cleaning structure 3 disposed on the telescopic structure 2. The cleaning structure 3 is close to or away from the mold. The telescopic structure 2 drives the cleaning structure 3 to move by telescopically extending and retracting, so that the cleaning structure 3 is close to the mold for cleaning when cleaning is needed, and away from the mold when cleaning is not needed to avoid affecting production. During cleaning, the cleaning structure 3 moves back and forth along the length direction of the mold to clean it.

[0027] Reference Figure 2 , Figure 3 as well as Figure 4 Specifically, the frame 1 supports various structures and includes two side frames positioned above the mold. The telescopic structure 2 connects the frame 1 and the cleaning structure 3. The telescopic structure 2 drives the cleaning structure 3 to extend and retract, allowing it to clean the mold when close to it and move away from it when not cleaning to avoid affecting normal extrusion. Specifically, the telescopic structure 2 includes a telescopic drive 21 hinged to the frame 1 and a swing frame 22 mounted on the telescopic drive 21. In this embodiment, the telescopic drive 21 is a cylinder. One end of the swing frame 22 is rotatably connected to the frame 1, and the swing frame 22 has an adapter end 221 rotatably connected to the piston end of the telescopic drive 21. The swing frame 22 has a swing fixing seat 222 for mounting the cleaning structure 3. When the swing frame 2 approaches the mold and reaches its stroke position, the length direction of the swing fixing seat 222 is parallel to the length direction of the mold, allowing the cleaning structure 3 to reciprocate along the length direction of the mold to clean it.

[0028] Furthermore, to adjust the swing angle of the swing frame 22, the adapter end 221 is provided with several adapter rods 2211 along its length, and the piston end of the telescopic drive member 21 is connected to one of the adapter rods 2211. By providing several adapter rods 2211, the swing angle of the swing frame 22 can be adjusted simply by connecting the piston end of the telescopic drive member 21 to the corresponding adapter rod 2211 as needed. This allows the swing frame 22 to be at a higher height when it is far from the mold, thus avoiding interference with higher equipment in subsequent processes.

[0029] Reference Figure 2 , Figure 3 as well as Figure 5The cleaning structure 3 includes a cleaning slide rail 31, a sliding seat 32 slidably connected to the cleaning slide rail 31, a cleaning drive assembly 33 for driving the sliding seat 32, and a cleaning assembly 34 disposed on the sliding seat 32. The cleaning slide rail 31 extends along the length of the mold and is disposed on the swing fixing seat 222 of the swing frame 22 and extends along the length of the swing fixing seat 222. The cleaning assembly 34 includes a mounting seat 341 and a cleaning scraper 342 disposed on the mounting seat 341, with the cleaning scraper 342 facing the mold. The cleaning drive assembly 33 is a lead screw structure driven by a motor. Under the drive of the cleaning drive assembly 33, the sliding seat 32 slides along the cleaning slide rail 31. The moving sliding seat 32 drives the cleaning assembly 34 to move, so that the cleaning scraper 342 moves from one side of the cleaning slide rail 31 to the other side of the cleaning slide rail 31 to clean the extrusion opening of the mold head.

[0030] In this embodiment, the mounting base 341 includes a fixing block 3411 disposed on the sliding base 32 and a locking block 3412 detachably connected to the fixing block 3411. The cleaning scraper 342 is disposed between the fixing block 3411 and the locking block 3412. The fixing block 3411 is fixedly connected to the sliding base 32, and the locking block 3412 is installed on the fixing block 3411 by a threaded connection to achieve a detachable connection. The cleaning scraper 342 is clamped between the fixing block 3411 and the locking block 3412. The locking block 3412 can be easily installed and separated from the fixing block 3411. On the one hand, it is convenient to adjust the position of the scraper. On the other hand, when the scraper is worn or damaged, the detachable locking block 3412 can be used to easily repair or replace the cleaning scraper 342, increasing the convenience of the cleaning device.

[0031] It is worth mentioning that in this embodiment, the mold is vertically downward, that is, the mold head faces downward. This facilitates material extrusion and allows residual material to easily fall off the mold head due to gravity, thus reducing the amount of residual material. Simultaneously, the sliding seat 32 is equipped with a cleaning cylinder 311, with the piston end of the cleaning cylinder 311 facing the mold. The mounting seat 341 is located at the piston end of the cleaning cylinder 311. By using the cleaning cylinder 311, the mounting seat 341 can be driven to move closer to or further away from the mold, thereby causing the cleaning scraper 342 on the mounting seat 341 to extend further into the mold head to clean the residual material inside the mold head, further reducing the amount of material remaining inside the mold head.

[0032] Reference Figure 6 as well as Figure 7In addition, the cleaning device also includes a guide rail structure 4, which includes a sliding guide rail 41 disposed on one side of the mold and a support base 42 slidably connected to the sliding guide rail 41. The support base 42 is close to or away from the cleaning structure 3. By setting the guide rail structure 4, the sliding guide rail 41 drives the support base 42 to move. A container for receiving residual materials or a container for cooling the film can be installed on the support base 42 as needed. When a container for receiving residual materials is installed, the container moves below the cleaning structure 3 during operation, and the cleaning structure 3 scrapes off the residual materials, which fall into the container for collection. When a cooling device is installed to cooperate with the mold for film cooling, the sliding guide rail 41 drives the cooling device away from the cleaning structure 3 during operation to prevent residual materials from falling into the cooling device. After the cleaning structure 3 has finished operating, the telescopic structure 2 drives the cleaning structure 3 away from the mold, and the sliding guide rail 41 drives the cooling device closer to the mold to restart the mold for production, effectively increasing the applicability of the cleaning device.

[0033] Exemplary embodiments of this disclosure have been specifically shown and described above. It should be understood that this disclosure is not limited to the detailed structures, arrangements, or implementations described herein; rather, this disclosure is intended to cover various modifications and equivalent arrangements contained within the spirit and scope of the appended claims.

Claims

1. A mold cleaning device comprising a mold, characterized by, It also includes a frame (1), a telescopic structure (2) disposed on the frame (1), and a cleaning structure (3) disposed on the telescopic structure (2), the cleaning structure (3) being close to or away from the mold; the cleaning structure (3) includes a cleaning slide rail (31), a sliding seat (32) slidably connected to the cleaning slide rail (31), a cleaning drive assembly (33) for driving the sliding seat (32), and a cleaning assembly (34) disposed on the sliding seat (32); the cleaning slide rail (31) extends along the length direction of the mold; the cleaning assembly (34) includes a mounting base (341) and a cleaning scraper (342) disposed on the mounting base (341), the cleaning scraper (342) facing the mold.

2. A mold cleaning device according to claim 1, wherein The mounting base (341) includes a fixing block (3411) disposed on the sliding base (32) and a locking block (3412) detachably connected to the fixing block (3411), and the cleaning scraper (342) is disposed between the fixing block (3411) and the locking block (3412).

3. A mold cleaning device according to claim 1, wherein The sliding seat (32) is provided with a cleaning cylinder (311), the piston end of the cleaning cylinder (311) faces the mold, and the mounting seat (341) is located at the piston end of the cleaning cylinder (311).

4. A mould cleaning device according to any one of claims 1 to 3, characterised in that, The telescopic structure (2) includes a telescopic drive member (21) hinged to the frame (1) and a swing frame (22) disposed on the telescopic drive member (21). One end of the swing frame (22) is rotatably connected to the frame (1). The swing frame (22) has an adapter end (221) which is rotatably connected to the telescopic drive member (21).

5. A mold cleaning device according to claim 4, wherein The telescopic drive (21) is a cylinder, and the adapter end (221) is provided with a plurality of adapter rods (2211) along its length direction. The piston end of the telescopic drive (21) is connected to one of the adapter rods (2211).

6. A mold cleaning device according to claim 1, wherein It also includes a guide rail structure (4), which includes a sliding guide rail (41) disposed on one side of the mold and a support seat (42) slidably connected to the sliding guide rail (41), the support seat (42) being close to or away from the cleaning structure (3).