Plastic product forming mold with automatic edge scraping mechanism

Abstract

The utility model provides a kind of plastic product forming mould with automatic edge scraping mechanism, it is related to injection mould technical field, including mould frame;The mould frame is fixed on workbench by fixed screw rod, and lower mould and slidingly connected upper mould are equipped on mould frame, and fixed hydraulic cylinder on mould frame drives upper mould to open and close, and upper mould is equipped with injection liquid delivery pipe, and lower mould is hollow structure and is connected cooling liquid pipe;Mould frame right side is equipped with auxiliary part, and auxiliary part includes seat body, pedestal, threaded rod, spring rod, connecting rod and cleaning seat.The automatic edge scraping after plastic product forming is realized by auxiliary part in the application, spring rod provides elastic edge scraping force, and threaded rod can adjust edge scraping strength, solve the problem that traditional mould needs manual trimming, low efficiency and edge scraping strength is difficult to control;Cooling liquid pipe accelerates injection molding part cooling, improves forming efficiency, and the fixing screw rod of hexagonal adjusting groove enhances disassembly adaptability, and overall structure is compact, and practicality is strong.

Description

Technical Field

[0001] This utility model belongs to the field of injection mold technology, and more specifically, it relates to a plastic product molding mold with an automatic edge scraping mechanism. Background Technology

[0002] Plastic product molding dies are the core equipment in injection molding production, used to inject molten plastic into a cavity for cooling and shaping.

[0003] After injection molding, existing molds often produce burrs and overflow on the edges of plastic products, requiring manual trimming, which is not only inefficient but also results in uneven trimming accuracy. In addition, if the scraping mechanism of traditional molds is set with a fixed scraping force, the elasticity of the elastic components will decrease after long-term use, leading to incomplete scraping. Furthermore, the mold's fixed components have poor disassembly and assembly adaptability, and the cooling effect of the coolant circulation is not good, affecting the molding efficiency and quality of injection molded parts. Utility Model Content

[0004] To address the aforementioned technical problems, this utility model provides a plastic product molding die with an automatic edge-scraping mechanism, thereby solving the problems of existing molds lacking automatic edge-scraping function, low efficiency of manual edge trimming, difficulty in adjusting edge-scraping force, inconvenience in disassembling and assembling fixed components, and insufficient cooling efficiency of injection molded parts.

[0005] The purpose and effect of this utility model of a plastic product molding die with an automatic edge scraping mechanism are achieved by the following specific technical means:

[0006] A plastic product molding die with an automatic edge scraping mechanism includes a mold frame; the mold frame is fixed to a worktable by four fixing screws, a lower mold is fixed on the mold frame, an upper mold slides on the mold frame, a hydraulic cylinder is fixed on the mold frame, the extended end of the hydraulic cylinder is fixed on the upper mold, an injection liquid delivery pipe is welded on the upper mold, the lower mold is a hollow structure, and a coolant pipe is welded on the lower mold.

[0007] Furthermore, a base is fixed to the right end face of the mold frame, a base slides on the base, and a threaded rod is threadedly connected to the base. One end of the threaded rod rotates on the base. When adjusting the left and right position of the base, the threaded rod can be rotated. Driven by the threaded rod, the left and right adjustment of the base can be achieved.

[0008] Furthermore, two spring rods are symmetrically fixed to the left end of the base, and a connecting rod is fixed to the extended end of each spring rod. Both connecting rods slide on the mold frame and the lower mold, and the left side end of each connecting rod is welded to the cleaning seat.

[0009] Furthermore, the left end face of the cleaning seat is located to the left of the left end face of the lower mold, and the cleaning seat is hidden inside the lower mold when the upper mold and the lower mold are closed.

[0010] Furthermore, the seat, base, threaded rod, spring rod, connecting rod, and cleaning seat together form the auxiliary part.

[0011] Furthermore, each of the fixing screws has an adjustment groove at its adjustment point, and the adjustment groove has a hexagonal groove structure.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] This application features automatic edge scraping with adjustable force. The spring rod in the auxiliary part provides elastic driving force, which pushes the cleaning seat to automatically scrape off the burrs on the edge of the injection molded part when the mold is opened, without the need for manual intervention. When the elasticity of the spring rod decreases, rotating the threaded rod can push the base to the left to compensate for the loss of elasticity and ensure stable edge scraping force, thus solving the problems of low efficiency and poor edge scraping effect of manual trimming.

[0014] This application features high cooling efficiency. The lower mold adopts a hollow structure and is equipped with a coolant pipe. The circulating coolant can quickly remove the heat from the injection molded part, accelerate the molding process, and improve production efficiency.

[0015] This application is easy to assemble and disassemble. The hexagonal adjustment groove of the fixing screw is compatible with various wrenches, which reduces the difficulty of disassembly and assembly during mold installation and maintenance and improves equipment adaptability. Attached Figure Description

[0016] Figure 1 This is a perspective view of the plastic product molding die with an automatic edge scraping mechanism according to this utility model.

[0017] Figure 2 This is a front view of the plastic product molding die with an automatic edge scraping mechanism according to this utility model.

[0018] Figure 3 This is a top view of the plastic product molding die with automatic edge scraping mechanism of this utility model.

[0019] Figure 4 This is a front view of a partially cut-open plastic product molding die with an automatic edge scraping mechanism according to this utility model.

[0020] Figure 5 This is a three-dimensional view of a partially cut-open plastic product molding die with an automatic edge scraping mechanism according to this utility model.

[0021] Figure 6 This is a perspective view of the auxiliary part of this utility model.

[0022] In the diagram, the correspondence between component names and drawing numbers is as follows:

[0023] 1. Mold frame; 101. Fixing screw; 102. Adjustment groove; 103. Lower mold; 104. Upper mold; 105. Hydraulic cylinder; 106. Coolant pipe; 107. Injection liquid delivery pipe; 2. Auxiliary parts; 201. Seat; 202. Base; 203. Threaded rod; 204. Spring rod; 205. Connecting rod; 206. Cleaning seat. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0025] Unless otherwise defined, the technical or scientific terms used herein shall have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The use of terms such as "a," "an," or "the" in this utility model patent application specification and claims does not indicate a quantity limitation, but rather indicates the presence of at least one. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the element or object listed following the word and its equivalents. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; these relative positional relationships may change accordingly when the absolute position of the described object changes.

[0026] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples.

[0027] Example 1: As shown in the attached document Figure 1 To be continued Figure 6 As shown:

[0028] This utility model provides a plastic product molding die with an automatic edge scraping mechanism, including a mold frame 1; the mold frame 1 is fixed to the worktable by four fixing screws 101, a lower mold 103 is fixed on the mold frame 1, an upper mold 104 slides on the mold frame 1, a hydraulic cylinder 105 is fixed on the mold frame 1, the extended end of the hydraulic cylinder 105 is fixed on the upper mold 104, an injection liquid delivery pipe 107 is welded on the upper mold 104, the lower mold 103 is a hollow structure, a coolant pipe 106 is welded on the lower mold 103, during use, the coolant enters the lower mold 103 through the coolant pipe 106 and then exits, the coolant can achieve rapid cooling of the injection molded part, improving the injection efficiency.

[0029] The mold frame 1 has a base 201 fixed on its right end face, a base 202 sliding on the base 201, and a threaded rod 203 threadedly connected to the base 201. The left end of the threaded rod 203 rotates on the base 202. When adjusting the left and right position of the base 202, the threaded rod 203 can be rotated. Driven by the threaded rod 203, the left and right adjustment of the base 202 can be achieved.

[0030] Two spring rods 204 are symmetrically fixed on the left end of the base 202. A connecting rod 205 is fixed to the extended end of each spring rod 204. Both connecting rods 205 slide on the mold frame 1 and the lower mold 103. The left end of each connecting rod 205 is welded to the cleaning seat 206.

[0031] The left end face of the cleaning seat 206 is located to the left of the left end face of the lower mold 103. When the upper mold 104 and the lower mold 103 are closed, the cleaning seat 206 is hidden inside the lower mold 103. When the mold is opened, the cleaning seat 206 moves to the left to complete the trimming action under the elastic push of the two spring rods 204. When the elastic force of the spring rods 204 decreases and the scraping force is insufficient, the threaded rod 203 is rotated. Under the push of the threaded rod 203, the base 202 drives the spring rods 204 to move to the left, ensuring the scraping force.

[0032] The auxiliary part 2 is composed of the seat 201, base 202, threaded rod 203, spring rod 204, connecting rod 205 and cleaning seat 206.

[0033] Example 2: Based on Example 1, each fixing screw 101 has an adjustment groove 102 at its adjustment point. The adjustment groove 102 is a hexagonal groove structure. When assembling or disassembling the fixing screw 101, various wrenches can be used to assemble or disassemble the fixing screw 101, which improves the adaptability of the fixing screw 101 to assembly or disassembly.

[0034] Working principle: During use, the mold frame 1 is fixed on the worktable by the fixing screw 101. The fixing screw 101 can be easily disassembled and tightened using the hexagonal adjustment groove 102. The hydraulic cylinder 105 is activated to drive the upper mold 104 to move downward, closing with the lower mold 103 to form a cavity. Molten plastic is injected into the cavity through the injection liquid delivery pipe 107, while cooling liquid enters the lower mold 103 through the cooling liquid pipe 106. The spirally distributed cooling liquid pipe 106 accelerates the cooling and shaping of the injection molded part. After injection molding is completed, the hydraulic cylinder 105 drives the upper mold 104 to move downward. 4. When the mold opens upward, the spring rod 204 of the auxiliary part 2 releases its elastic potential energy, pushing the connecting rod 205 and the cleaning seat 206 to move to the left. The arc-shaped scraper on the left end face of the cleaning seat 206 fits against the edge of the injection molded part, automatically scraping off burrs and overflow. If the elasticity of the spring rod 204 decreases after long-term use, the threaded rod 203 can be rotated to drive the base 202 to move to the left, causing the spring rod 204 to compress and store force to compensate for the loss of elasticity and ensure stable scraping force. After scraping is completed, the molded plastic product can be taken out, completing one injection molding-scraping integrated operation.

[0035] Although this application has been described with reference to the foregoing embodiments, those skilled in the art will understand that various changes can be made without departing from the spirit and scope of this application as defined by the appended claims. While this specification contains details of many specific implementations, these should not be construed as limiting the scope of the claims, but rather as descriptions of features specific to particular embodiments. The scope of this application is defined by the appended claims and their equivalents, and is not limited to the embodiments described above.

Claims

1. A molding die for plastic products with an automatic edge-scraping mechanism, characterized in that: The mold includes a mold frame (1); the mold frame (1) is fixed to the workbench by four fixing screws (101), a lower mold (103) is fixed on the mold frame (1), an upper mold (104) slides on the mold frame (1), a hydraulic cylinder (105) is fixed on the mold frame (1), the extended end of the hydraulic cylinder (105) is fixed on the upper mold (104), an injection liquid delivery pipe (107) is welded on the upper mold (104), the lower mold (103) is a hollow structure, and a coolant pipe (106) is welded on the lower mold (103).

2. The plastic product molding die with an automatic edge-scraping mechanism as described in claim 1, characterized in that: The mold frame (1) has a base (201) fixed on its right end face. A base (202) slides on the base (201). A threaded rod (203) is threadedly connected to the base (201). One end of the threaded rod (203) rotates on the base (202). When adjusting the left and right position of the base (202), the threaded rod (203) can be rotated. Driven by the threaded rod (203), the left and right adjustment of the base (202) can be realized.

3. The plastic product molding die with an automatic edge-scraping mechanism as described in claim 2, characterized in that: Two spring rods (204) are symmetrically fixed on the left end of the base (202). A connecting rod (205) is fixed to the extended end of each of the two spring rods (204). Both connecting rods (205) slide on the mold frame (1) and the lower mold (103). The left end of each connecting rod (205) is welded to the cleaning seat (206).

4. The plastic product molding die with an automatic edge-scraping mechanism as described in claim 3, characterized in that: The left end face of the cleaning seat (206) is located to the left of the left end face of the lower mold (103). When the upper mold (104) and the lower mold (103) are closed, the cleaning seat (206) is hidden inside the lower mold (103).

5. The plastic product molding die with an automatic edge-scraping mechanism as described in claim 4, characterized in that: The seat (201), base (202), threaded rod (203), spring rod (204), connecting rod (205), and cleaning seat (206) together form the auxiliary part (2).

6. The plastic product molding die with an automatic edge-scraping mechanism as described in claim 5, characterized in that: Each of the fixed screws (101) has an adjustment groove (102) at its adjustment point. The adjustment groove (102) is a hexagonal groove structure.

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