Plastic mold with chip removing structure

Abstract

This utility model relates to the field of plastic mold technology, specifically a plastic mold with a chip removal structure. It includes a worktable, a base plate mounted on the worktable, a lower mold fixed on the base plate, and a cavity within the lower mold. A chip removal mechanism is installed on the worktable near the cavity. The chip removal mechanism includes a support frame and a hydraulic rod. The hydraulic rod is fixedly mounted on the worktable, and the extension end of the hydraulic rod is fixedly connected to the support frame. A mounting block is fixed on the support frame, and a ball joint seat rotatably resides within the mounting block. A chip suction tube is sleeved on the ball joint seat, and a suction nozzle is installed at the end of the chip suction tube. A guide tube is threaded onto the chip suction tube. The hydraulic rod drives the support frame to slide, and combined with the rotational cooperation of the ball joint seat and the mounting block, the position and angle of the suction nozzle can be flexibly adjusted to ensure precise alignment with the chip accumulation area of ​​the cavity. The suction nozzle, chip suction tube, and guide tube form a negative pressure channel, efficiently removing debris and preventing impurities from affecting the molding accuracy of the plastic part.

Description

Technical Field

[0001] This utility model relates to a plastic mold, specifically a plastic mold with a chip removal structure, and belongs to the field of plastic mold technology. Background Technology

[0002] A plastic mold is a tool used to process plastic raw materials into plastic products of specific shapes through processes such as injection molding, extrusion, and compression molding. It is a core piece of equipment in plastic product manufacturing. Its basic principle is to inject molten plastic raw material into the cavity inside the mold. After cooling and solidification, the mold is separated to obtain a plastic product that perfectly matches the shape of the cavity. In the actual production process of plastic molds, after each injection molding, a certain amount of plastic debris often remains inside and around the cavity.

[0003] However, manual cleaning of debris makes it difficult to reach some narrow gaps and hidden corners in the mold cavity, resulting in long-term debris residue. This residue is very likely to mix into the newly injected plastic melt during subsequent injection molding, causing defects on the surface of the plastic part, such as pits, bumps, and scratches, which seriously affects the appearance quality of the plastic part. If debris is trapped in the critical mating parts of the mold, such as the mating surface between the core and the cavity, or the connection between the slider and the groove, it will aggravate the wear of the mold and may even cause mold failure. Utility Model Content

[0004] The purpose of this invention is to provide a plastic mold with a chip removal structure to solve the above problems. The hydraulic rod drives the support frame to slide, and the rotation of the ball head seat and the mounting block can flexibly adjust the position and angle of the suction nozzle to ensure accurate alignment with the chip accumulation area of ​​the cavity. The suction nozzle, the chip removal tube and the guide tube form a negative pressure channel to efficiently remove chips and avoid impurities from affecting the molding accuracy of the plastic parts.

[0005] This utility model achieves the above-mentioned objective through the following technical solution: a plastic mold with a chip removal structure includes a worktable, a base plate mounted on the worktable, a lower mold fixed on the base plate, a cavity inside the lower mold, a chip removal mechanism mounted on the worktable near the cavity, the chip removal mechanism including a support frame and a hydraulic rod, the hydraulic rod fixedly mounted on the worktable, the extension end of the hydraulic rod fixedly connected to the support frame, an mounting block fixed on the support frame, a ball head seat rotatably mounted inside the mounting block, a chip suction tube sleeved on the ball head seat, a suction nozzle mounted at the end of the chip suction tube, and a conduit threadedly connected to the chip suction tube.

[0006] Preferably, the part of the mounting block that contacts the ball head seat has an arc-shaped structure, and the conduit is located at the end of the dust suction tube away from the suction nozzle.

[0007] Preferably, both the suction nozzle and the chip suction tube are inclined, with the suction nozzle located in the lower mold near the cavity.

[0008] Preferably, the support frame slides inside the workbench, and the diameter of the ball head seat at the end opposite to the mounting block is larger than the diameter of the chip suction pipe.

[0009] Preferably, the workbench is equipped with a base plate via a fixing mechanism, the fixing mechanism including a fixing rod and a clamping plate, the fixing rod is threadedly installed on the workbench, the clamping rod is fixed on the base plate, the clamping plate is sleeved on the clamping rod, the clamping plate is rotatably connected to the fixing rod, and a positioning block is threadedly installed on the clamping rod.

[0010] Preferably, the two sets of clamps are arranged symmetrically, and the clamps are located at the four corners of the base plate.

[0011] Preferably, the card plate is inclined, and the positioning block abuts against the top of the card plate.

[0012] Preferably, the height of the clamping rod is greater than the height of the clamping plate, and the clamping plate abuts against the top of the base plate.

[0013] The beneficial effects of this utility model are as follows: The hydraulic rod is fixed on the worktable, and its telescopic end is connected to the support frame. The hydraulic rod can drive the support frame to slide, causing the chip suction component to move closer to or away from the cavity, realizing flexible adjustment of the chip removal position and adapting to the chip removal needs around the cavity under different working conditions; The mounting block on the support frame has an arc surface structure inside, which rotates and cooperates with the ball head seat. The ball head seat rotates, causing the chip suction tube to adjust the angle, ensuring that the suction nozzle can accurately target the corners, gaps and other areas prone to chip accumulation in the cavity, improving the targeting of chip removal; The suction nozzle is inclinedly arranged near the cavity, one end of the chip suction tube is connected to the suction nozzle and the other end is threaded to the guide tube. The suction nozzle is directly aimed at the chip, and a negative pressure channel is formed through the chip suction tube and the guide tube to efficiently suck away plastic chips. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 for Figure 1 The diagram shown is an enlarged view of the structure of part A.

[0016] Figure 3 This is a schematic diagram of the connection structure between the workbench and the fixed rod of this utility model;

[0017] Figure 4 This is a schematic diagram of the connection structure between the support frame and the hydraulic rod of this utility model;

[0018] Figure 5 This is a schematic diagram of the connection structure between the lower mold and the base plate of this utility model.

[0019] In the diagram: 1. Workbench; 2. Fixing mechanism; 201. Fixing rod; 202. Clamping plate; 203. Positioning block; 204. Clamping rod; 3. Lower mold; 4. Chip removal mechanism; 401. Support frame; 402. Guide tube; 403. Suction nozzle; 404. Ball head seat; 405. Mounting block; 406. Hydraulic rod; 407. Chip suction pipe; 5. Cavity; 6. Base plate. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figures 1-5 As shown, a plastic mold with a chip removal structure includes a worktable 1, a base plate 6 mounted on the worktable 1, a lower mold 3 fixed on the base plate 6, a cavity 5 within the lower mold 3, and a chip removal mechanism 4 mounted on the worktable 1 near the cavity 5. The chip removal mechanism 4 includes a support frame 401 and a hydraulic rod 406. The hydraulic rod 406 is fixedly mounted on the worktable 1, and the telescopic end of the hydraulic rod 406 is fixedly connected to the support frame 401. The support frame 401 slides inside the worktable 1. A mounting block 405 is fixed on the support frame 401, and a ball head seat 404 rotatably resides within the mounting block 405. The contact area between the mounting block 405 and the ball head seat 404 has an arc-shaped structure. A chip suction tube 407 is sleeved on the ball head seat 404. The diameter of the end of the ball head seat 404 away from the mounting block 405 is larger than the diameter of the chip suction tube 407. A suction nozzle 403 is mounted at the end of the chip suction tube 407. Rotate the ball head seat 404, utilizing its rotational engagement with the inner arc surface structure of the mounting block 405, to finely adjust the angle of the suction nozzle 403. If there are accumulated chips in the corner of the cavity 5, rotate the ball head seat 404 until the suction nozzle 403 is aligned with the corner, ensuring that the tilt direction and angle of the suction nozzle 403 accurately fit the chip accumulation area. A conduit 402 is threaded onto the chip suction tube 407. The conduit 402 is located at the end of the chip suction tube 407 away from the suction nozzle 403. Both the suction pipe 407 and the suction nozzle 403 are inclined. The suction nozzle 403 is located in the lower mold 3 near the cavity 5. After the conduit 402 is connected to the external negative pressure device, the negative pressure device is turned on, so that the suction nozzle 403, the suction pipe 407 and the conduit 402 form a negative pressure channel. The suction nozzle 403 is directly aimed at the plastic debris on the surface of the cavity 5. The strong suction force generated by the negative pressure quickly sucks the debris into the suction nozzle 403, through the suction pipe 407, and finally through the conduit 402 to the designated collection container.

[0022] As a technical optimization of this utility model, the workbench 1 is equipped with a base plate 6 via a fixing mechanism 2. The fixing mechanism 2 includes a fixing rod 201 and a clamping plate 202. The fixing rod 201 is threaded onto the workbench 1, and clamping rods 204 are fixed onto the base plate 6. The clamping rods 204 installed at the four corners of the base plate 6 are roughly aligned with the preset fixing holes on the workbench 1. Then, the clamping rods 204 are inserted into the fixing holes to ensure that the position of the base plate 6 is initially fixed and will not slide freely on the workbench 1. The two sets of clamping rods 204 are symmetrically arranged, and clamping plates 202 are sleeved on the clamping rods 204. The clamping plates 202 are inclined, and the height of the clamping rods 204 is greater than the height of the clamping plates 202. The clamping plates 202 and the fixing rods 201 are aligned. The base plate 6 is rotatably connected, with the clamping rod 204 located at the four corners of the base plate 6. The clamping rod 204 is threaded with a positioning block 203, and the positioning block 203 abuts against the top of the clamping plate 202. After the clamping plate 202 installed on the fixing rod 201 is sleeved on the side wall of the clamping rod 204, the fixing rod 201 is then threaded onto the inner wall of the worktable 1. After the fixing rod 201 is installed, the positioning block 203 is threaded onto the side wall of the clamping rod 204 using a tool. When the positioning block 203 abuts against the top of the clamping plate 202, the base plate 6 can be firmly installed on the worktable 1. The multiple sets of symmetrically distributed clamping rods 204 and clamping plates 202 ensure that the base plate 6 is subjected to uniform fixing force in all directions, avoiding mold deformation or displacement due to uneven local force.

[0023] In use, firstly, place the base plate 6 on the workbench 1, aligning the four corner clamps 204 with the pre-set fixing holes on the workbench 1. Then, insert the clamps 204 into the fixing holes to ensure the base plate 6 is initially fixed and will not slide freely on the workbench 1. After fitting the clamping plate 202 on the side wall of the clamp 204 onto the fixing rod 201, thread the fixing rod 201 onto the inner wall of the workbench 1. After the fixing rod 201 is installed, use a tool to thread the positioning block 203. Installed onto the side wall of the clamping rod 204, when the positioning block 203 abuts against the top of the clamping plate 202, the base plate 6 can be firmly installed on the worktable 1. Multiple symmetrically distributed clamping rods 204 and clamping plates 202 ensure that the base plate 6 receives uniform fixing force in all directions, preventing mold deformation or displacement due to uneven local force, and ensuring the dimensional accuracy and consistency of the molded plastic parts. Next, the hydraulic rod 406 is fixed inside the worktable 1, ensuring that the hydraulic rod 406 will not shift during subsequent operations. According to the inner cavity 5 of the lower mold 3... Position the hydraulic rod 406 and operate its control switch to drive its telescopic end to slide the support frame 401, allowing the chip suction assembly to initially approach the periphery of the cavity 5. Manually rotate the ball head seat 404, utilizing its rotational engagement with the inner arc surface structure of the mounting block 405 to finely adjust the angle of the suction nozzle 403. If there is chip accumulation in the corner of the cavity 5, rotate the ball head seat 404 until the suction nozzle 403 is aligned with the corner, ensuring that the tilt direction and angle of the suction nozzle 403 accurately fit the chip accumulation area. After connecting the guide tube 402 to the external negative pressure equipment... Turn on the negative pressure equipment to form a negative pressure channel with the suction nozzle 403, the chip suction tube 407, and the conduit 402. The suction nozzle 403 is directly aimed at the plastic chips on the surface of the cavity 5. The strong suction generated by the negative pressure quickly sucks the chips into the suction nozzle 403, through the chip suction tube 407, and finally discharged into the designated collection container through the conduit 402. The conduit 402 and the chip suction tube 407 are connected by threads. Operators can complete the disassembly and installation in a short time without the need for complicated tools, which facilitates daily maintenance and cleaning, and reduces maintenance costs and downtime.

[0024] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0025] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A plastic mold with a chip removal structure, comprising a worktable (1), characterized in that: A base plate (6) is installed on the workbench (1), and a lower mold (3) is fixed on the base plate (6). A cavity (5) is provided inside the lower mold (3). A chip removal mechanism (4) is installed on the workbench (1) near the cavity (5). The chip removal mechanism (4) includes a support frame (401) and a hydraulic rod (406). The hydraulic rod (406) is fixedly installed on the workbench (1). The extension end of the hydraulic rod (406) is fixedly connected to the support frame (401). An installation block (405) is fixed on the support frame (401). A ball head seat (404) rotates inside the installation block (405). A chip suction pipe (407) is sleeved on the ball head seat (404). A suction nozzle (403) is installed at the end of the chip suction pipe (407). A conduit (402) is threadedly connected to the chip suction pipe (407).

2. A plastic mold with a chip removal structure according to claim 1, characterized in that: The part of the mounting block (405) that contacts the ball head seat (404) is arranged with an arc surface structure, and the conduit (402) is located at the end of the chip suction tube (407) away from the suction nozzle (403).

3. A plastic mold with a chip removal structure according to claim 1, characterized in that: The suction nozzle (403) and the chip suction tube (407) are both inclined, and the suction nozzle (403) is located on the lower mold (3) near the cavity (5).

4. A plastic mold with a chip removal structure according to claim 1, characterized in that: The support frame (401) slides inside the workbench (1), and the diameter of the ball head seat (404) away from the mounting block (405) is larger than the diameter of the chip suction pipe (407).

5. A plastic mold with a chip removal structure according to claim 1, characterized in that: The workbench (1) is fitted with a base plate (6) via a fixing mechanism (2). The fixing mechanism (2) includes a fixing rod (201) and a clamping plate (202). The fixing rod (201) is threaded onto the workbench (1). A clamping rod (204) is fixed onto the base plate (6). The clamping plate (202) is sleeved onto the clamping rod (204). The clamping plate (202) is rotatably connected to the fixing rod (201). A positioning block (203) is threaded onto the clamping rod (204).

6. A plastic mold with a chip removal structure according to claim 5, characterized in that: The two sets of clamps (204) are arranged symmetrically, and the clamps (204) are located at the four corners of the base plate (6).

7. A plastic mold with a chip removal structure according to claim 5, characterized in that: The card plate (202) is inclined, and the positioning block (203) abuts against the top of the card plate (202).

8. A plastic mold with a chip removal structure according to claim 5, characterized in that: The height of the lever (204) is greater than the height of the plate (202), and the plate (202) abuts against the top of the base plate (6).

Images