Forming die for plastic handle piece of automobile door
By introducing a sponge ring and sleeve ring structure into the injection mold, the problem of material waste caused by guide pin wear is solved, an efficient way of replacing sleeve rings and replenishing lubricating oil is achieved, and the service life of the mold is extended.
Patent Information
- Application Number
- CN202422612991.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-29
- Publication Date
- 2025-09-05
- Estimated Expiration
- 2034-10-29
AI Technical Summary
The problem of waste of materials when replacing the guide pins of conventional injection molds as a whole.
A mold design including a guide pin, a sponge ring, a collar, a threaded cover and an anti-loosening washer is adopted. The service life of the guide pin is extended by replacing the collar and using the sponge ring to store lubricating oil.
It reduces material waste, improves lubrication durability, and extends the service life of the guide column.
Smart Images
Figure CN223302124U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of automobile door plastic handle production equipment, in particular to a forming die for automobile door plastic handles. Background Art
[0002] Automobile door plastic handles need to be produced and molded using injection molds. Injection molds are tools used in the plastic processing industry to match plastic molding machines and give plastic products a complete configuration and precise size.
[0003] Since there is dynamic friction between the guide pin surface of the injection mold and the mold, the guide pin surface wears relatively quickly. When the guide pin surface is worn too much, it needs to be replaced as a whole, which causes the problem of wasteful material when replacing the guide pin as a whole in conventional injection molds.
[0004] Therefore, we propose a molding die for automobile door plastic handle to solve the above problems. Utility Model Content
[0005] The utility model aims to solve the problem of waste of materials when replacing the guide pillars of a conventional injection mold as a whole, and proposes a molding die for a plastic door handle of an automobile.
[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions:
[0007] A molding die for a plastic door handle for an automobile comprises a die body, the die body comprising a guide post, the guide post comprising a post core, a sponge ring, a collar, a threaded cap, and a locking washer. The sponge ring and collar are evenly fitted over the upper portion of the post core, the locking washer is fitted over the threaded cap, the threaded cap is threadedly mounted on the upper end of the post core, and the lower end of the locking washer presses against the upper end of the collar. When the collar is worn, the threaded cap is unscrewed with a wrench, the collar is removed, a new collar is fitted over the post core, and the threaded cap is tightened. The threaded cap compresses and constrains the collar to prevent it from falling off, thereby reducing material waste by replacing the collar.
[0008] The sponge ring is used to contain lubricating oil. When the lubricating oil on the outside of the ring is insufficient, the lubricating oil stored in the sponge ring is used to supply the surface of the ring with the opening and closing movement, thereby improving the durability of lubrication.
[0009] Preferably, the column core comprises a core rod, a column pile, and a mounting plate, wherein the upper end of the core rod is provided with a threaded opening, the lower end of the core rod is fixedly connected to the upper end of the column pile, and the lower end of the column pile is fixedly connected to the upper end of the mounting plate. The sponge ring and the collar are placed on the core rod, and the core rod is used to stabilize the sponge ring and the collar, so that the column core, the sponge ring, and the collar are conveniently kept concentric, and the threaded opening is conveniently used to thread the threaded cap.
[0010] Preferably, the sponge ring comprises a metal ring and a sponge ring body, wherein the sponge ring body is fixedly connected to the outside of the metal ring. The metal ring is used as a pad between the rings to prevent the sponge ring body from being flattened and facilitate the storage of lubricating oil by the sponge ring body.
[0011] Preferably, the collar includes a ring body, wherein a lubricating oil receiving groove is provided inside the ring body. The lubricating oil receiving groove is used to receive lubricating oil. When the lubricating oil in the sponge ring body is insufficient, the lubricating oil in the lubricating oil receiving groove is used to replenish the sponge ring body, thereby further increasing the lubrication durability.
[0012] Preferably, the threaded cap includes a cap body, a threaded column, and a guide block. The upper end of the cap body is provided with a first hexagonal groove, the lower end of the cap body is fixedly connected to the upper end of the threaded column, and the upper end of the guide block is fixedly connected to the lower end of the threaded column. When docking the threaded cap with the column core, the guide block is used to guide the lower end of the threaded column to align with the threaded opening. An external hexagonal wrench is inserted into the first hexagonal groove, and the cap body is rotated to drive the threaded column to rotate, screwing the threaded column into the threaded opening. The guide block facilitates docking of the column core and the threaded cap.
[0013] Preferably, the mounting plate includes a plate body, and a second hexagonal groove is formed at the lower end of the plate body. An additional hexagonal wrench is inserted into the second hexagonal groove to prevent the plate body from rotating, so that the hexagonal wrench can be held to stabilize the direction of the plate body and the direction of the column core through the plate body.
[0014] In summary, the technical effects and advantages of the utility model are:
[0015] 1. When the collar is worn, use a wrench to unscrew the threaded cap, then remove the collar, put a new collar on the column core, and then tighten the threaded cap. Use the threaded cap to compress and constrain the collar to prevent it from falling off. By replacing the collar, material waste can be reduced.
[0016] 2. Use the sponge ring to hold the lubricating oil. When the lubricating oil on the outside of the ring is insufficient, the lubricating oil stored in the sponge ring can be used to replenish the surface of the ring with the opening and closing movement to improve the durability of lubrication.
[0017] 3. Use metal rings to pad between the rings to prevent the sponge ring from being flattened and facilitate the storage of lubricating oil in the sponge ring.
[0018] 4. Use the lubricating oil holding tank to hold the lubricating oil. When the lubricating oil in the sponge ring body is insufficient, use the lubricating oil in the lubricating oil holding tank to replenish the sponge ring body, thereby further increasing the lubrication durability.
[0019] 5. When docking the threaded cover with the column core, use the guide block to guide the lower end of the threaded column to align with the threaded opening, insert the additional hexagonal wrench into the first hexagonal groove, screw the cover body to drive the threaded column to rotate, screw the threaded column into the threaded opening, and use the guide block to facilitate docking of the column core and the threaded cover. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 This is a schematic diagram of the overall split structure of the utility model;
[0021] Figure 2 This is a schematic diagram of the column core structure of the utility model;
[0022] Figure 3 This is a schematic diagram of the sponge ring structure of the utility model;
[0023] Figure 4 This is a schematic diagram of the ring structure of the utility model;
[0024] Figure 5 This is a schematic structural diagram of the threaded cover of the present utility model;
[0025] Figure 6 This is a schematic diagram of the installation disk structure of the utility model.
[0026] In the figure: 1. mold body; 2. column core; 3. sponge ring; 4. collar; 5. threaded cover; 6. mounting plate; 7. anti-loosening washer; 21. core rod; 22. threaded mouth; 23. column pile; 31. metal ring; 32. sponge ring body; 41. ring body; 42. lubricating oil receiving groove; 51. cover body; 52. first hexagonal groove; 53. threaded column; 54. guide block; 61. plate body; 62. second hexagonal groove. DETAILED DESCRIPTION
[0027] The technical solutions in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments.
[0028] Reference Figure 1 A molding mold for a plastic handle of a car door includes a mold body 1. The mold body 1 includes a guide column. The guide column includes a column core 2, a sponge ring 3, a collar 4, a threaded cover 5 and an anti-loosening washer 7. The sponge ring 3 and the collar 4 are evenly sleeved on the upper part of the column core 2. The anti-loosening washer 7 is sleeved on the threaded cover 5. The threaded cover 5 is threadedly installed on the upper end of the column core 2. The lower end of the anti-loosening washer 7 is pressed on the upper end of the collar 4.
[0029] Reference Figure 1 and 2 The column core 2 includes a core rod 21, a column pile 23, and a mounting plate 6. The upper end of the core rod 21 is provided with a threaded opening 22. The lower end of the core rod 21 is fixedly connected to the upper end of the column pile 23, and the lower end of the column pile 23 is fixedly connected to the upper end of the mounting plate 6. The sponge ring 3 and the collar 4 are put on the core rod 21, and the core rod 21 is used to stabilize the sponge ring 3 and the collar 4 so that the column core 2, the sponge ring 3, and the collar 4 remain concentric. The threaded opening 22 is used to thread the threaded cover 5.
[0030] Reference Figure 1 、 2 3, the sponge ring 3 comprises a metal ring 31 and a sponge ring body 32, the metal ring 31 is movably sleeved outside the core rod 21, and the sponge ring body 32 is fixedly connected to the outside of the metal ring 31. The metal ring 31 is used to pad between the sleeve rings 4 to prevent the sponge ring body 32 from being flattened.
[0031] Reference Figure 1 、 2 , 3 and 4, the collar 4 includes a ring body 41, which is movably sleeved on the core rod 21. A lubricating oil receiving groove 42 is formed inside the ring body 41. The lubricating oil receiving groove 42 is used to receive lubricating oil. When the lubricating oil in the sponge ring body 32 is insufficient, the lubricating oil in the lubricating oil receiving groove 42 is used to replenish the sponge ring body 32.
[0032] Reference Figure 1 、 2 5, the threaded cover 5 includes a cover body 51, a threaded column 53, and a guide block 54. The threaded column 53 is threadedly installed in the threaded opening 22, and the anti-loosening washer 7 is sleeved on the threaded column 53. The upper end of the cover body 51 is provided with a first hexagonal groove 52. The lower end of the cover body 51 is fixedly connected to the upper end of the threaded column 53, and the upper end of the guide block 54 is fixedly connected to the lower end of the threaded column 53. When the threaded cover 5 is docked with the column core 2, the guide block 54 is used to guide the lower end of the threaded column 53 to align with the threaded opening 22. The external hexagonal wrench is inserted into the first hexagonal groove 52, and the cover body 51 is screwed to drive the threaded column 53 to rotate, and the threaded column 53 is screwed into the threaded opening 22.
[0033] Reference Figure 2 and 6 The mounting plate 6 includes a plate body 61, the upper end of the plate body 61 is fixedly connected to the lower end of the column 23, and the lower end of the plate body 61 is provided with a second hexagonal groove 62. An additional hexagonal wrench is inserted into the second hexagonal groove 62 to prevent the plate body 61 from rotating.
[0034] Working principle: When the collar 4 is worn, use a wrench to unscrew the threaded cover 5, then remove the collar 4, put a new collar 4 on the column core 2, and then tighten the threaded cover 5. Use the threaded cover 5 to compress and constrain the collar 4 to prevent it from falling off. By replacing the collar 4, material waste is reduced; use the sponge ring 3 to contain lubricating oil. When the lubricating oil outside the collar 4 is insufficient, use the lubricating oil stored in the sponge ring 3 to replenish the collar 4 surface with the opening and closing movement, thereby improving the durability of lubrication.
[0035] The above is only a preferred specific implementation method of the utility model, but the scope of protection of the utility model is not limited to this. Any technician familiar with this technical field can make equivalent replacements or changes within the technical scope disclosed by the utility model based on the technical solution and utility model concept of the utility model, which should be covered by the scope of protection of the utility model.
[0036] The description briefly mentions the application direction of the utility model for the existing technology that is known to and has not been changed by those skilled in the art, and combines it with the utility model to form a complete technology; it avoids over-popularizing the technology familiar to those skilled in the art, and is used to assist those skilled in the art to quickly understand the main content of the utility model.
Claims
1. A molding die for a plastic door handle of an automobile, comprising a die body (1), wherein the die body (1) comprises a guide post, and is characterized in that: The guide column comprises a column core (2), a sponge ring (3), a collar (4), a threaded cover (5) and an anti-loosening washer (7); the sponge ring (3) and the collar (4) are evenly sleeved on the upper part of the column core (2); the anti-loosening washer (7) is sleeved on the threaded cover (5); the threaded cover (5) is threadedly mounted on the upper end of the column core (2); and the lower end of the anti-loosening washer (7) is pressed on the upper end of the collar (4).
2. The forming die for a plastic automobile door handle according to claim 1, characterized in that: The column core (2) comprises a core rod (21), a column pile (23) and a mounting plate (6); the upper end of the core rod (21) is provided with a threaded opening (22); the lower end of the core rod (21) is fixedly connected to the upper end of the column pile (23); and the lower end of the column pile (23) is fixedly connected to the upper end of the mounting plate (6).
3. The forming die for a plastic automobile door handle according to claim 1, characterized in that: The sponge ring (3) comprises a metal ring (31) and a sponge ring body (32), wherein the sponge ring body (32) is fixedly connected to the outside of the metal ring (31).
4. The forming die for a plastic automobile door handle according to claim 1, characterized in that: The collar (4) comprises a ring body (41), and a lubricating oil receiving groove (42) is provided inside the ring body (41).
5. The forming die for a plastic automobile door handle according to claim 1, characterized in that: The threaded cover (5) comprises a cover body (51), a threaded column (53) and a guide block (54); the upper end of the cover body (51) is provided with a first hexagonal groove (52); the lower end of the cover body (51) is fixedly connected to the upper end of the threaded column (53); and the upper end of the guide block (54) is fixedly connected to the lower end of the threaded column (53).
6. The forming die for a plastic automobile door handle according to claim 2, characterized in that: The mounting plate (6) comprises a plate body (61), and a second hexagonal groove (62) is formed at the lower end of the plate body (61).