A core guiding structure for a plastic mold

Abstract

The present invention discloses a core guiding structure for a plastic mold, which includes two guiding mechanisms and a mold body. Installation grooves are respectively and penetratingly formed on both sides of the upper surface of the mold body. The two guiding mechanisms are respectively arranged in the two installation grooves. The guiding mechanism includes a first movable seat, a second movable seat and a guiding rod. A placement groove is formed in the middle of the upper surface of the first movable seat. The second movable seat is arranged in the placement groove. The guiding rod is installed in the middle of the upper surface of the second movable seat. The structure further includes: a plurality of positioning and centering components arranged in an annular and equally spaced manner in the middle of the first movable seat; a one-way self-locking component for driving and limiting each positioning and centering component. By setting the positioning and centering components, cooperating with the arranged clamping grooves and the one-way self-locking component, on the one hand, it is convenient for workers to quickly disassemble and assemble the first movable seat, and on the other hand, it can position and center the first movable seat, avoid the dislocation of the first movable seat, and ensure the normal progress of the guiding work.

Description

Technical Field

[0001] The present invention relates to the technical field of die guiding mechanisms, and particularly to a core guiding structure for a plastic mold. Background Art

[0002] The core, also known as the mold core, is a key part of the mold, used for the key operation in the central part of the mold. It is a part that constitutes the product space, that is, a part of the molding part. In a plastic mold, the core usually cooperates with the cavity (female mold) to jointly form the cavity of the mold for molding the inner surface of the plastic product. The selection of the core material is directly related to the cost and service life of the mold. Common core materials include wire drawing die cores, ceramic die cores, vacuum die cores, etc. The selection of these materials is often based on the specific requirements of the plastic product and the manufacturing requirements of the mold.

[0003] The Chinese Patent Network discloses a patent document with the publication number CN217704244U. By setting a combined guiding mechanism, when the outer surface of the guiding rod needs to be replaced due to long-term wear, as long as the second screw of the fixing plate is loosened, and then the guiding sleeve can be removed for replacement. If any one of the connecting seat, mounting seat, and guiding rod is damaged and disassembled for replacement after long-term use, this can reduce the cost of having to replace the entire traditional integrated guiding mechanism. However, this combined guiding mechanism is fixed by connecting screws and bolts, and the disassembly and assembly operations are time-consuming and laborious. Therefore, a core guiding structure for a plastic mold is provided. Summary of the Invention

[0004] The purpose of the present invention is to provide a core guiding structure for a plastic mold to solve the problem that the combined guiding mechanism is fixed by connecting screws and bolts, and the disassembly and assembly operations are time-consuming and laborious as mentioned in the above background art.

[0005] To achieve the above purpose, the specific technical solution of the present invention is as follows: A core guiding structure for a plastic mold includes two guiding mechanisms and a mold body. Installation grooves are respectively penetrated through both sides of the upper surface of the mold body. The two guiding mechanisms are respectively arranged in the two installation grooves. The guiding mechanism includes a first movable seat, a second movable seat, and a guiding rod. A placement groove is opened in the middle of the upper surface of the first movable seat. The second movable seat is arranged in the placement groove. The guiding rod is installed in the middle of the upper surface of the second movable seat. It further includes:

[0006] A plurality of positioning and centering components arranged in a ring at equal intervals in the middle of the first movable seat;

[0007] A one-way self-locking component for driving and limiting each positioning and centering component.

[0008] Preferably, the second movable seat is rotatably arranged with the first movable seat, and both sides of the inner surface of the installation groove are provided with card slots, and both sides of the outer surface of the first movable seat are provided with storage slots, and the storage slots correspond to the card slots in position, and the storage slots are communicated with the card slots.

[0009] Preferably, guide grooves are provided on both sides of the inner surface of the placement groove, and corner grooves are provided on the inner surface of the placement groove at each guide groove position, and the corner grooves are connected to the guide grooves, and a pressing plate for pressing the second movable seat is elastically provided on the inner surface of the placement groove through a first spring, and locking blocks are provided on both sides of the outer surface of the bottom of the second movable seat.

[0010] Preferably, the positioning and centering component includes a vertical shaft, the vertical shaft is rotatably arranged with the first movable seat, the outer surface of the vertical shaft and each storage slot position are provided with a driving sleeve, the outer surface of the vertical shaft and each driving sleeve position are fixedly provided with a flat key, the inner surface of the driving sleeve and the flat key position are provided with a keyway, the outer surface of the driving sleeve is provided with a pressing tooth, and the pressing tooth and the driving sleeve are integrally formed, a cross bar is fixedly arranged inside the pressing tooth, and a pressure sleeve is arranged on the outer surface of the cross bar, and the pressure sleeve and the driving sleeve are elastically arranged by a second spring, and a gear is fixedly arranged in the middle of the bottom end of the vertical shaft.

[0011] Preferably, the one-way self-locking component includes a fixed column arranged in the middle of the bottom end of the first movable seat, and a gear ring rotatably arranged in the middle of the bottom end of the first movable seat, the fixed column and the gear ring are arranged in sequence from the inside to the outside, a volute spring is arranged between the fixed column and the gear ring, and the gear ring and the fixed column are elastically arranged by the volute spring, the gear ring is meshed with each gear for transmission, and an assist handle is fixedly arranged on the lower surface of the gear ring.

[0012] Preferably, the lower surface of the gear ring is penetrated by a plurality of track grooves arranged in a ring shape with equal intervals, and an anti-drop cap for intercepting the gear ring is provided in the middle of the track groove, and the cross-section of the anti-drop cap is an inverted T-shaped structure design, the anti-drop cap is connected to the first movable seat, and the gear ring and the anti-drop cap slide relative to each other.

[0013] Preferably, the one-way self-locking component also includes two fixed shafts respectively arranged on both sides of the bottom end of the first movable seat, and the outside of the fixed shaft is elastically provided with a ratchet through a torsion spring, and the ratchet is slidably engaged with the gear ring, and the outer surface of the ratchet is fixedly provided with a prying handle.

[0014] Compared with the prior art, the beneficial effects of the present invention are: the core guide structure of the plastic mold,

[0015] The present invention provides a positioning and centering component, which cooperates with the provided card slot and the one-way self-locking component. On the one hand, it is convenient for the staff to quickly disassemble and assemble the first movable seat. On the other hand, it can position and center the first movable seat to avoid misalignment of the first movable seat and ensure the normal guiding work. In addition, the provided first spring, corner groove, guide groove, pressing plate, placement groove and locking block are utilized to facilitate the rapid disassembly and assembly of the second movable seat, and the operation process saves time and effort. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0017] Figure 2 It is a cross-sectional view of the overall structure of the present invention;

[0018] Figure 3 It is a partial cross-sectional exploded view of the present invention;

[0019] Figure 4 It is an enlarged view of the local structure of the present invention;

[0020] Figure 5 It is a schematic diagram of the structure of the one-way self-locking component of the present invention.

[0021] In the figure:

[0022] 100, mold body; 200, mounting groove; 300, first movable seat; 301, first spring; 302, corner groove; 303, guide groove; 304, pressing plate; 305, placement groove; 400, second movable seat; 401, locking block; 500, guide rod; 600, storage groove; 700, positioning centering component; 701, vertical shaft; 702, gear; 703, pressing tooth; 704, Flat key; 705, keyway; 706, drive sleeve; 707, second spring; 708, cross bar; 709, pressure sleeve; 800, slot; 900, one-way self-locking assembly; 901, gear ring; 902, assist handle; 903, track groove; 904, anti-drop cap; 905, volute spring; 906, fixed column; 907, ratchet; 908, fixed shaft; 909, torsion spring; 910, break handle. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] See also Figures 1-5, the present invention provides a technical solution: a core guiding structure of a plastic mold, including two guiding mechanisms and a mold body 100. Among them, installation grooves 200 are respectively and penetratingly opened on both sides of the upper surface of the mold body 100. The two guiding mechanisms are respectively arranged in the two installation grooves 200. The two installation grooves 200 are both arranged at the horizontal central axis position of the mold body 100, and the two installation grooves 200 are symmetrically arranged about the vertical central axis of the mold body 100. The guiding mechanism includes a first movable seat 300, a second movable seat 400 and a guiding rod 500. The first movable seat 300 can slide up and down relative to the mold body 100, and the upper surface of the first movable seat 300 is flush with the upper surface of the mold body 100, and the lower surface of the first movable seat 300 is flush with the lower surface of the mold body 100. A placement groove 305 is opened in the middle of the upper surface of the first movable seat 300. The second movable seat 400 is arranged in the placement groove 305, and the upper surface of the second movable seat 400 is flush with the upper surface of the first movable seat 300. The guiding rod 500 is installed in the middle of the upper surface of the second movable seat 400. The second movable seat 400 is rotatably arranged with the first movable seat 300. On both sides of the inner surface of the installation groove 200, clamping grooves 800 are respectively opened. On both sides of the outer surface of the first movable seat 300, receiving grooves 600 are respectively opened, and the receiving grooves 600 correspond to the positions of the clamping grooves 800 and are communicated with the clamping grooves 800. In this device, there is also included: a plurality of positioning and centering components 700 arranged in a ring and equidistantly arranged in the middle of the first movable seat 300, which are used to cooperate with the provided clamping grooves 800 to fix the first movable seat 300; a one-way self-locking component 900 for driving and limiting each positioning and centering component 700.

[0025] Furthermore, guiding grooves 303 are respectively opened on both sides of the inner surface of the placement groove 305, and corner grooves 302 are respectively opened on the inner surface of the placement groove 305 at the positions of the respective guiding grooves 303, and the corner grooves 302 are communicated with the guiding grooves 303. The corner grooves 302 and the guiding grooves 303 are arranged in an L-shaped layout. A pressing plate 304 for pressing the second movable seat 400 is elastically arranged on the inner surface of the placement groove 305 through a first spring 301. On both sides of the outer surface of the bottom of the second movable seat 400, locking blocks 401 are respectively arranged, which are used to cooperate with the provided corner grooves 302 and guiding grooves 303 to fix the second movable seat 400.

[0026] Specifically, the positioning and centering component 700 includes a vertical shaft 701, the vertical shaft 701 is rotatably arranged with the first movable seat 300, the upper surface of the vertical shaft 701 is flush with the upper surface of the first movable seat 300, and the lower surface of the vertical shaft 701 is flush with the lower surface of the first movable seat 300, the outer surface of the vertical shaft 701 and the positions of each storage groove 600 are provided with a driving sleeve 706, the outer surface of the vertical shaft 701 and the positions of each driving sleeve 706 are fixedly provided with a flat key 704, and the inner surface of the driving sleeve 706 and the position of the flat key 704 are provided with a key slot 705, which is used to cooperate with the flat key 704 to make the driving sleeve 706 and the vertical shaft 701 Synchronously rotate, the outer surface of the driving sleeve 706 is provided with a pressing tooth 703, and the pressing tooth 703 and the driving sleeve 706 are integrally formed, a cross bar 708 is fixedly provided inside the pressing tooth 703, and a pressure sleeve 709 is provided on the outer surface of the cross bar 708, and the pressure sleeve 709 and the driving sleeve 706 are elastically provided by a second spring 707 to increase the stability of the connection, the second spring 707 is wound on the outer surface of the cross bar 708, the outer surface of the pressing tooth 703 is in contact with the inner surface of the slot 800, the outer ends of the pressure sleeve 709 and the cross bar 708 are designed to be arc surfaces, and a gear 702 is fixedly provided in the middle of the bottom end of the vertical shaft 701.

[0027] Specifically, the one-way self-locking component 900 includes a fixed column 906 arranged in the middle of the bottom end of the first movable seat 300, and a gear ring 901 rotatably arranged in the middle of the bottom end of the first movable seat 300, the fixed column 906 and the gear ring 901 are arranged in sequence from the inside to the outside, a vortex spring 905 is arranged between the fixed column 906 and the gear ring 901, and the gear ring 901 and the fixed column 906 are elastically arranged by the vortex spring 905, the gear ring 901 is meshed with each gear 702 for transmission, and a plurality of track grooves 903 arranged in an annular shape with equal spacing are opened on the lower surface of the gear ring 901, and an anti-drop cap 904 for intercepting the gear ring 901 is arranged in the middle of the track groove 903, and the anti-drop cap 904 is The cross-section is designed as an inverted T-shaped structure, the anti-drop cap 904 is connected to the first movable seat 300, and the ring gear 901 slides relative to the anti-drop cap 904. Furthermore, the one-way self-locking component 900 also includes two fixed shafts 908 respectively arranged on both sides of the bottom end of the first movable seat 300, and the outside of the fixed shaft 908 is elastically provided with a ratchet 907 through a torsion spring 909, and the ratchet 907 is slidingly engaged with the ring gear 901, and the outer surface of the ratchet 907 is fixedly provided with a prying handle 910, which is convenient for the staff to move the ratchet 907 to disengage the ratchet 907 from the ring gear 901, and the lower surface of the ring gear 901 is fixedly provided with an assisting handle 902, which is convenient for the staff to rotate the ring gear 901.

[0028] According to the above, the present invention facilitates the quick disassembly and assembly of the first movable seat 300 by the staff on the one hand through the setting of the positioning and centering component 700 in cooperation with the arranged clamping groove 800 and the one-way self-locking component 900, and on the other hand can position and center the first movable seat 300 to avoid dislocation of the first movable seat 300 and ensure the normal progress of the guiding work. In addition, by using the arranged first spring 301, corner groove 302, guiding groove 303, pressing plate 304, placement groove 305 and locking block 401, the quick disassembly and assembly of the second movable seat 400 are convenient, and the operation process is time-saving and labor-saving.

[0029] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

Claims

1. A core guide structure of a plastic mold, comprising two guide mechanisms and a mold body (100), characterized in that: Both sides of the upper surface of the mold body (100) are penetrated by installation grooves (200), and the two guide mechanisms are respectively arranged in the two installation grooves (200). The guide mechanism comprises a first movable seat (300), a second movable seat (400) and a guide rod (500). A placement groove (305) is opened in the middle of the upper surface of the first movable seat (300), and the second movable seat (400) is arranged in the placement groove (305). The guide rod (500) is installed in the middle of the upper surface of the second movable seat (400). The second movable seat (400) and the first movable seat (300) are rotatably arranged, the inner surface of the installation groove (200) is provided with a clamping groove (800) on both sides, the outer surface of the first movable seat (300) is provided with a receiving groove (600) on both sides, and the receiving groove (600) corresponds to the position of the clamping groove (800), and the receiving groove (600) is connected to the clamping groove (800); and it also includes: a plurality of positioning centering components (700) arranged in a ring shape with equal spacing in the middle of the first movable seat (300); the positioning centering components (700) are provided with a plurality of positioning centering components (700) arranged in a ring shape with equal spacing in the middle of the first movable seat (300); the positioning centering components (700) are provided with a plurality of positioning centering components (700) arranged in a ring shape with equal spacing in the middle of the first movable seat (300); the positioning centering components (700) are provided with a plurality of positioning centering components (700) and a plurality of ... The middle component (700) comprises a vertical shaft (701), the vertical shaft (701) and the first movable seat (300) are rotatably arranged, the outer surface of the vertical shaft (701) and each storage groove (600) are provided with a driving sleeve (706), the outer surface of the vertical shaft (701) and each driving sleeve (706) are fixedly provided with a flat key (704), the inner surface of the driving sleeve (706) and the position of the flat key (704) are provided with a key slot (705), and the outer surface of the driving sleeve (706) is provided with A pressing tooth (703) is provided, and the pressing tooth (703) and the driving sleeve (706) are integrally formed, a cross bar (708) is fixedly provided inside the pressing tooth (703), and a pressure sleeve (709) is provided on the outer surface of the cross bar (708), and the pressure sleeve (709) and the driving sleeve (706) are elastically provided through a second spring (707), and a gear (702) is fixedly provided in the middle of the bottom end of the vertical shaft (701); and a one-way self-locking component (900) is used to drive and limit each positioning and centering component (700).

2. A core guide structure for a plastic mold according to claim 1, characterized in that: Guide grooves (303) are provided on both sides of the inner surface of the placement groove (305), and corner grooves (302) are provided on the inner surface of the placement groove (305) and at the positions of each guide groove (303), and the corner grooves (302) are connected to the guide grooves (303), and a pressing plate (304) for pressing the second movable seat (400) is elastically provided on the inner surface of the placement groove (305) through a first spring (301), and locking blocks (401) are provided on both sides of the outer surface of the bottom of the second movable seat (400).

3. The core guide structure of a plastic mold according to claim 1, characterized in that: The one-way self-locking component (900) comprises a fixed column (906) arranged at the middle of the bottom end of the first movable seat (300), and a gear ring (901) rotatably arranged at the middle of the bottom end of the first movable seat (300), the fixed column (906) and the gear ring (901) are arranged in sequence from the inside to the outside, a vortex spring (905) is arranged between the fixed column (906) and the gear ring (901), and the gear ring (901) and the fixed column (906) are elastically arranged by the vortex spring (905), the gear ring (901) is meshed with each gear (702) for transmission, and an assist handle (902) is fixedly arranged on the lower surface of the gear ring (901).

4. The core guide structure of a plastic mold according to claim 3, characterized in that: The lower surface of the gear ring (901) is penetrated by a plurality of track grooves (903) arranged in a ring shape with equal intervals, and an anti-dropping cap (904) for intercepting the gear ring (901) is provided in the middle of the track groove (903), and the cross section of the anti-dropping cap (904) is designed as an inverted T-shaped structure, the anti-dropping cap (904) is connected to the first movable seat (300), and the gear ring (901) and the anti-dropping cap (904) slide relative to each other.

5. The core guide structure of a plastic mold according to claim 3, characterized in that: The one-way self-locking assembly (900) further comprises two fixed shafts (908) respectively arranged on both sides of the bottom end of the first movable seat (300), and the outside of the fixed shaft (908) is elastically provided with a ratchet (907) via a torsion spring (909), and the ratchet (907) is slidably engaged with the gear ring (901), and the outer surface of the ratchet (907) is fixedly provided with a prying handle (910).

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