CN210851142U

CN210851142U - Secondary forming injection mold for gear handle

Info

Publication number: CN210851142U
Application number: CN201921894050.3U
Authority: CN
Inventors: 张晓峰
Original assignee: Wuxi Suoyuan Rubber And Plastic Products Co ltd
Current assignee: Wuxi Suoyuan Rubber And Plastic Products Co ltd
Priority date: 2019-11-05
Filing date: 2019-11-05
Publication date: 2020-06-26
Anticipated expiration: 2029-11-05

Abstract

The utility model relates to a secondary forming injection mold for a gear handle, which comprises a template and a rear template; the front template and the rear template are mutually buckled and enclose a mold cavity; a front mold core and a rear mold core are arranged in the mold cavity; the front mold core is provided with a longitudinal flow passage; when the front mold core and the rear mold core are closed, a cavity for forming the gear handle is enclosed; the rear mold core is provided with a main runner; branch flow channels are formed in the two sides of the main flow channel; the branch flow channel is communicated with the cavity; the positioning rod axially penetrates through the cavity; the positioning rod passes through the positioning plate; the positioning plate is fixed on the ejector plate; the front template is clamped with a limiting plate; the front mold core and the rear mold core are respectively provided with a guide post groove and a locking rod groove correspondingly; the guide post grooves are symmetrical about the longitudinal axis of the rear die core; the locking rod groove is abutted against the head of the gear handle groove; the guide post groove penetrates through the straight guide post; one end of the straight guide post is abutted against the gear handle groove main body; the straight guide post is embedded in the transverse sliding groove of the inclined guide post positioning seat; the locking rod groove penetrates through the locking rod; the locking rod is embedded in the sliding groove of the locking block. The utility model discloses close-fitting die orifice.

Description

Secondary forming injection mold for gear handle

Technical Field

The utility model relates to a mould field, in particular to keep off position handle post forming injection mold.

Background

The importance of mold manufacturing is mainly reflected in the market demand, and only the mold market of the automobile and motorcycle industries is taken as an example. The automobile and motorcycle industry is the largest market of the mold, and in industrially developed countries, the market breaks about half of the whole mold market. The automobile industry is one of five major post industries of national economy in China, important development parts of the automobile industry, economic cars, heavy-duty automobiles and automobile molds are taken as development key points and are clear in the policy of the automobile industry.

Insert injection molding is required to produce such products as fully covered injection molded handles. To achieve full coverage, the substrate must be removed from the original mold cavity and placed in another mold core and cavity for injection of the cover material. In the process, the other mold should be run simultaneously on the same or another injection molding machine of different dimensions (depending on the size of the injection molded part). The substrate is typically much larger than the cover material and may require preheating to bring the surface temperature close to the melting point of the cover material to obtain optimum bond strength.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art, the utility model discloses a keep off position handle post forming injection mold.

The utility model discloses the technical scheme who adopts as follows:

a secondary forming injection mold for a gear handle comprises a front cover plate, a front template and a rear template; the front template and the rear template are buckled with each other and enclose a mold cavity; a mold core is arranged in the mold cavity; the die core comprises a front die core and a rear die core; the front mold core is provided with a longitudinal flow passage; the front mold core and the rear mold core are both provided with a gear handle groove; the front mold core and the rear mold core enclose a pair of cavities for forming the gear handles when the molds are closed; the rear mold core is provided with a main runner; branch flow channels are formed in the two sides of the main flow channel; the branch flow channel is communicated with the cavity; the positioning rod axially penetrates through the cavity; the tail part of the positioning rod penetrates through the positioning plate; the positioning plate is fixed on the ejector plate; a pair of limiting plates is clamped on the front template; the limiting plate blocks the bottom of the gear handle groove; the front mold core and the rear mold core are respectively provided with a pair of guide post grooves and a pair of locking rod grooves; the pair of guide pillar grooves is symmetrical about the longitudinal axis of the rear die core; the pair of locking rod grooves are abutted against the heads of the gear handle grooves; the guide post groove penetrates through the straight guide post; one end of the straight guide post is abutted against the main body of the gear handle groove; the straight guide post is embedded in the transverse sliding groove of the inclined guide post positioning seat; the locking rod groove penetrates through the locking rod; one end of the locking rod is abutted against the head of the gear handle groove; the locking rod is embedded in the sliding groove of the locking block; a group of mould feet are fixed under the rear template; the ejector pin plate is arranged between the group of the mould feet; the mould feet are fixed on the bottom plate.

The method is further characterized in that: the positioning rod and the positioning plate are perpendicular to each other; the positioning plate and the limiting plate are parallel to each other.

The method is further characterized in that: the limiting plate is provided with an arc-shaped notch; the arc-shaped notch is clamped on the positioning rod.

The method is further characterized in that: the inclined guide post positioning seat is obliquely inserted into the inclined guide post; the extension line of the inclined guide post and the extension line of the straight guide post are intersected at one point in the inclined guide post positioning seat.

The utility model has the advantages as follows:

the utility model discloses when the secondary injected material on the rigidity substrate, set up latch segment and check lock lever and ensure that closed front mould benevolence and back mould benevolence shaping firm high pressure closed chamber on the substrate avoids producing the overlap to fill the die cavity appropriately, carry out the secondary on the substrate and mould plastics.

The utility model discloses during the drawing of patterns, because the shape that keeps off the position handle is irregular and profile curve and wall thickness inconsistent, consequently the drawing of patterns degree of difficulty is great, sets up the drawing of patterns efficiency that keeps off position handle part when locating lever, locating plate and oblique guide pillar positioning seat can improve front formwork and back template separation.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is an exploded view of the present invention.

Fig. 3 is an exploded view of the mold core.

In the figure: 101. a front cover plate; 102. a front template; 103. a rear template; 104. a front mold core; 105. a rear mold core; 106. an ejector plate; 107. a guide post groove; 108. a locking bar slot; 109. a mould leg; 110. a base plate; 201. a main flow channel; 202. branch flow channels; 301. positioning a rod; 302. positioning a plate; 303. a limiting plate; 401. an inclined guide post positioning seat; 402. an inclined guide post; 403. a straight guide post; 404. a locking block; 405. a locking lever.

Detailed Description

The foregoing and other features, aspects and utilities of the present invention will be apparent from the following detailed description of the embodiments, which is to be read in connection with the accompanying drawings. Directional terms as referred to in the following examples, for example: up, down, left, right, front or rear, etc., are simply directions with reference to the drawings. Therefore, the directional terminology used is for the purpose of description and is not intended to be limiting, and moreover, like reference numerals will be used to refer to like elements throughout.

The following describes a specific embodiment of the present embodiment with reference to the drawings.

Fig. 1 is a schematic structural diagram of the present invention, and fig. 2 is an explosion diagram of the present invention. Referring to fig. 1 and 2, the secondary molding injection mold for the gear handle comprises a front cover plate 101, a front mold plate 102 and a rear mold plate 103. The front mold plate 102 and the rear mold plate 103 are fastened to each other and enclose a mold cavity. A mold core is arranged in the mold cavity. The mold core includes a front mold core 104 and a rear mold core 105. The front mold core 104 is provided with a longitudinal flow passage. The front mold core 104 and the rear mold core 105 are provided with gear handle grooves. The front mold core 104 and the rear mold core 105 enclose a pair of cavities for forming the gear handles when the molds are closed.

Fig. 3 is an exploded view of the mold core. As shown in fig. 3, the back mold core 105 is provided with a main runner 201. The two sides of the main channel 201 are provided with branch channels 202. The bypass channel 202 communicates with the cavity. The positioning rod 301 is axially passed through the cavity. The tail of the positioning rod 301 passes through the positioning plate 302. The positioning plate 302 is fixed above the ejector plate 106. A pair of position limiting plates 303 are clamped on the front template 102. The limiting plate 303 blocks the bottom of the gear handle groove. The positioning rod 301 and the positioning plate 302 are perpendicular to each other. The retainer plate 302 and the retainer plate 303 are parallel to each other. The limiting plate 303 is provided with an arc-shaped notch. The arc breach card is on locating lever 301.

The front mold core 104 and the rear mold core 105 are respectively provided with a pair of guide post grooves 107 and a pair of locking rod grooves 108. A pair of guide post grooves 107 are symmetrical about the longitudinal axis of the back mold insert 105. A pair of locking bar slots 108 abut the heads of the gear knob slots. The guide post groove 107 is penetrated by the straight guide post 403. One end of the straight guide post 403 abuts against the main body of the shift knob groove. The straight guide post 403 is embedded in the transverse sliding slot of the inclined guide post positioning seat 401. The angle beam positioning seat 401 is inserted into the angle beam 402. The extension line of the oblique guide post 402 and the extension line of the straight guide post 403 intersect at a point in the oblique guide post positioning seat 401.

The locking bar slot 108 passes through the locking bar 405. One end of the locking lever 405 abuts the head of the shift knob slot. The locking bar 405 is nested within the slide slot of the locking block 404.

A set of form feet 109 is secured beneath the rear form 103. The ejector plate 106 is mounted between a set of mould feet 109. The mold feet 109 are fixed on the base plate 110.

The working principle of the utility model is as follows:

in the secondary injection molding process of the gear handle, the covering material is injected into the base material to form a complete gear handle part. When injecting the material on the rigid substrate for the second time, the front mold plate 102 and the rear mold plate 103 must be tightly closed on the rigid substrate, and the flow of the covering material is prevented by the sealing area during the injection molding process, so that the locking blocks 404 and the locking rods 405 are provided to ensure that the closed front mold core 104 and the closed rear mold core 105 form a firm high-pressure closed cavity on the substrate, avoid the generation of flash, and properly fill the mold cavity, and perform the second injection molding on the substrate. During the drawing of patterns, because keep off the irregular and profile curve of position handle and the inconsistent wall thickness of shape, consequently the drawing of patterns degree of difficulty is great, sets up drawing of patterns efficiency when locating lever 301, locating plate 302 and oblique guide pillar positioning seat 401 can improve front template 102 and back template 103 separation. Specifically, when the ejector pin plate 106 jacks up, the ejector pin plate 106 drives the positioning plate 302 to jack up, so that the positioning plate 302 drives the positioning rod 301 to jack up, and meanwhile, the straight guide pillar 403 and the inclined guide pillar 402 of the inclined guide pillar positioning seat 401 jack up the gear handle part from two directions, so that the gear handle part is easier to completely fall off from the mold.

The above description is for the purpose of explanation and not limitation of the invention, which is defined in the claims, and any modifications may be made without departing from the basic structure of the invention.

Claims

1. The utility model provides a keep off position handle post forming injection mold which characterized in that: comprises a front cover plate (101), a front template (102) and a rear template (103); the front template (102) and the rear template (103) are buckled with each other and enclose a mold cavity; a mold core is arranged in the mold cavity; the mold cores comprise a front mold core (104) and a rear mold core (105); the front mold core (104) is provided with a longitudinal flow passage; the front mold core (104) and the rear mold core (105) are provided with gear handle grooves; the front mold core (104) and the rear mold core (105) enclose a pair of cavities for forming gear handles when being closed; a main runner (201) is arranged on the rear mold core (105); branch runners (202) are arranged on two sides of the main runner (201); the branch flow channel (202) is communicated with the cavity; a positioning rod (301) axially penetrates through the cavity; the tail part of the positioning rod (301) penetrates through the positioning plate (302); the positioning plate (302) is fixed on the ejector plate (106); a pair of limiting plates (303) is clamped on the front template (102); the limiting plate (303) clamps the bottom of the gear handle groove; the front die core (104) and the rear die core (105) are respectively provided with a pair of guide post grooves (107) and a pair of locking rod grooves (108) correspondingly; the pair of guide pillar grooves (107) is symmetrical about the longitudinal axis of the rear die core (105); a pair of locking bar grooves (108) abut against the heads of the gear handle grooves; a straight guide post (403) penetrates through the guide post groove (107); one end of the straight guide post (403) is abutted against the main body of the gear handle groove; the straight guide post (403) is embedded in the transverse sliding groove of the inclined guide post positioning seat (401); the locking rod groove (108) is internally provided with a locking rod (405) in a penetrating way; one end of the locking rod (405) abuts against the head of the gear handle groove; the locking rod (405) is embedded in the sliding groove of the locking block (404); a group of mould feet (109) is fixed under the rear mould plate (103); the ejector plate (106) is mounted between a set of the mould feet (109); the mould foot (109) is fixed on the bottom plate (110).

2. The post-forming injection mold for the gear handle according to claim 1, wherein: the positioning rod (301) and the positioning plate (302) are perpendicular to each other; the positioning plate (302) and the limiting plate (303) are parallel to each other.

3. The post-forming injection mold for the gear handle according to claim 1, wherein: the limiting plate (303) is provided with an arc-shaped notch; the arc-shaped notch is clamped on the positioning rod (301).

4. The post-forming injection mold for the gear handle according to claim 1, wherein: the inclined guide post positioning seat (401) is obliquely inserted into the inclined guide post (402); the extension line of the inclined guide post (402) and the extension line of the straight guide post (403) intersect at one point in the inclined guide post positioning seat (401).