CN218803594U

CN218803594U - Rotary pressing block positioning mechanism of double-color mold

Info

Publication number: CN218803594U
Application number: CN202320057863.7U
Authority: CN
Inventors: 孙峰; 李宝泉; 汪旭辉; 许家豪; 梁晓婷
Original assignee: Changyuan Technology Tianjin Co ltd
Current assignee: Changqing Intelligent Technology Tianjin Co ltd; Changyuan Technology Tianjin Co ltd
Priority date: 2023-01-10
Filing date: 2023-01-10
Publication date: 2023-04-07
Anticipated expiration: 2033-01-10

Abstract

The utility model discloses a rotatory briquetting positioning mechanism of double-colored mould, include: template behind the post forming sets up the core on the template behind the post forming, sets up the pilot pin in core department, slides respectively in the left and right sides of core and sets up left slider and right slider, sets up a set of rotatory briquetting subassembly respectively at the front end and the rear end of core, rotatory briquetting subassembly includes: revolving cylinder and briquetting, revolving cylinder installs on post forming back template and its piston rod is vertical upwards wears out, and the briquetting is connected to the upper end of piston rod, fixes a position the back to the ebonite skeleton after the one shot forming when the location, compresses tightly ebonite skeleton both ends through the briquetting, realizes the location and stabilizes the reinforcement, has effectively prevented the secondary and has moulded plastics the compound die in-process, and ebonite skeleton location shakiness and influence the post forming quality problem, simple structure, the cost of manufacture is low, convenient operation.

Description

Rotary pressing block positioning mechanism of double-color mold

Technical Field

The utility model relates to a double-colored injection mold structural design especially relates to a rotary pressing block positioning mechanism of double-colored mould.

Background

In the field of injection molding of automobile ornaments, in order to improve the performance of products such as attractiveness, assembly and the like, a plurality of manufacturers adopt a double-color injection molding process, and the double-color injection molding of the products is realized by respectively injecting two materials with different colors or different hardness into a primary molding die and a secondary molding die in two times; in general, most of molds are formed by splicing a plurality of parts, the position of a seam cannot be absolutely smooth, a small gap exists, and when an injection molding product is produced, a small edge bulge, namely a parting line, exists at the position; in other words, the product is divided into several parts to be molded, the parts are spliced together to form a closed space, and then the line between the parts is the parting line. The parting line and the product shape complement each other, the product shape design determines the parting line, and the parting line also influences the product shape, so the position and the design of the parting line are very important.

For a double-color automobile handrail with a traditional appearance, before secondary molding, a hard rubber framework after primary molding is positioned on a rear mold of a secondary molding mold, and a positioning needle is generally adopted and inserted into a positioning point of the hard rubber framework from bottom to top. For the double-color automobile handrail shown in fig. 1 to 2, the number of the side wall parting lines of the soft rubber coating layer of the product design is three, the specific positions are as shown in fig. 1, and one is arranged on each of two sides, namely: first parting line 8 and second parting line 9, as in fig. 2, the bottom one, namely: third mold parting line 10, because mold parting line position and lines characteristic, the mould must set up two sets of sliders behind the post forming mould, and as the position that the dotted line circled in fig. 1 shows, this department does not have the flexible glue cladding, therefore, when the compound die, splice about two sets of sliders, and the tip of a set of slider must insert the dotted line of ebonite skeleton and circle the position, if only use the location to fix a position to the ebonite skeleton, one side slider compound die in-process can with ebonite skeleton inside wall contact friction, can lead to the ebonite skeleton location unstability, influence the post forming quality.

SUMMERY OF THE UTILITY MODEL

In order to solve the defects of the prior art, the utility model aims to provide a rotary pressing block positioning mechanism of a double-color mold.

In order to achieve the above purpose, the utility model is realized by the following technical scheme: a rotary pressing block positioning mechanism of a double-color mold comprises: template behind the post forming sets up the core on the template behind the post forming, sets up the pilot pin in core department, slides respectively in the left and right sides of core and sets up left slider and right slider, sets up a set of rotatory briquetting subassembly respectively in the front end and the rear end of core, rotatory briquetting subassembly includes: the rotary air cylinder is installed on the post-forming template, a piston rod of the rotary air cylinder vertically penetrates out upwards, and the upper end of the piston rod is connected with the pressing block.

Furthermore, a limiting groove is formed in the side wall of a piston rod of the rotary cylinder, the limiting groove is L-shaped, a limiting pin is horizontally installed inside the post-forming template, and the end of the limiting pin falls into the limiting groove.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses a rotatory briquetting locating component realizes stably consolidating to the ebonite skeleton location, has effectively prevented the secondary compound die in-process of moulding plastics, and ebonite skeleton location is unstable and influence the post forming quality problem, simple structure, and the cost of manufacture is low, convenient operation.

Drawings

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

FIG. 2 is a schematic structural diagram II of the product of the present invention;

fig. 3 is a schematic view of the overall structure of the present invention;

FIG. 4 is a schematic sectional view of a partial structure of the present invention;

FIG. 5 is a schematic sectional view of the present invention;

FIG. 6 is a schematic diagram showing the positional relationship between the rotary press block assembly and the slide block and between the rotary press block assembly and the hard rubber frame;

FIG. 7 is a schematic view showing the positional relationship between the rotary press block assembly and the hard rubber frame and the positioning pin according to the present invention;

fig. 8 is a schematic view of the three-dimensional structure of the rotary pressing block assembly of the present invention.

In the figure: 1-secondary forming of the rear template; 11-a core; 2-a positioning needle; 3-left slider; 4-right slide block; 5-rotating the cylinder; 51-a limiting groove; 6-briquetting; 7-a limit pin; 8-a first split line; 9-a second split line; 10-third part line.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer and more obvious, the present invention is further described in detail below with reference to the accompanying drawings and embodiments.

As shown in fig. 1 to 8, the utility model provides a two-color mold's rotatory briquetting positioning mechanism, include: template 1 behind the post forming sets up core 11 on template 1 behind the post forming, sets up pilot pin 2 in core 11 department, slides respectively in the left and right sides of core 11 and sets up left slider 3 and right slider 4, sets up a set of rotatory briquetting subassembly respectively at the front end and the rear end of core 11, rotatory briquetting subassembly includes: the die comprises a rotary cylinder 5 and a pressing block 6, wherein the rotary cylinder 5 is installed on the post-forming rear die plate 1, a piston rod of the rotary cylinder vertically penetrates out upwards, and the upper end of the piston rod is connected with the pressing block 6.

Further, a limit groove 51 is formed in the side wall of the piston rod of the rotary cylinder 5, the limit groove 51 is L-shaped, a limit pin 7 is horizontally installed in the post-forming formwork 1, and the end of the limit pin 7 falls into the limit groove 51.

The utility model discloses a concrete working process does:

when the ebonite skeleton needs to be placed, a piston rod of the rotary cylinder 5 firstly extends upwards for a certain distance and then rotates, the press block 6 is ejected upwards and rotates for a certain angle, an avoidance space is provided for placing the ebonite skeleton, the ebonite skeleton is placed at the mold core 11, the positioning needle 2 is inserted into a positioning point at the lower end of the ebonite skeleton from bottom to top, the rotary cylinder 5 rotates for the same angle, then the piston rod retracts downwards, the press block 6 synchronously rotates and downwards presses the end part of the ebonite skeleton, the ebonite skeleton is stably positioned by the positioning needle 2 and the press block 6, the left slide block 3 and the right slide block 4 slide towards the direction close to the mold core 11, one position at the end part of the right slide block 4 is inserted into the ebonite skeleton leftwards, the left slide block 3 and the right slide block 4 are closed and the two bottoms are spliced (after soft glue injection molding, a third parting line 10 of the soft glue coating is formed at the position), the template 1 and the front template after secondary molding are closed (after soft glue injection molding, a first parting line 8 and a second parting line 9 of the soft glue coating are formed at the splicing position) are closed, injection molding is completed, and secondary glue material is injected.

In the process that a piston rod of the rotary cylinder 5 extends upwards, the limiting pin 7 keeps still, the limiting groove 51 moves upwards, two side walls of the end part of the limiting pin 7 are in sliding connection with the inner wall of the vertical section of the limiting groove 51, the limiting pin 7 reaches the lower corner section of the limiting groove 51 from the upper end of the vertical section, the rotary cylinder 5 rotates, the limiting groove 51 rotates, the limiting pin 7 enters the horizontal section of the limiting groove 51, and when the rotary cylinder 5 rotates to the position, the side walls of the limiting pin 7 are in contact with the side walls at the tail end of the horizontal section of the limiting groove 51; when the rotary cylinder 5 rotates, the limiting groove 51 rotates, when the rotary cylinder rotates in place, one side wall of the limiting pin 7 is in contact with the inner wall of one side of the lower end of the vertical section of the limiting groove 51, the piston rod of the rotary cylinder 5 retracts downwards, the limiting groove 51 moves downwards, the end part of the limiting pin 7 reaches the upper end of the vertical section of the limiting groove 51 from the lower end of the vertical section of the limiting groove 51, and the limiting pin 7 is matched with the limiting groove 51 to limit the rotation of the rotary cylinder 5.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. A rotary pressing block positioning mechanism of a double-color mold comprises: template (1) behind the post forming sets up core (11) on template (1) behind the post forming, sets up pilot pin (2), its characterized in that in core (11): slide respectively in the left and right sides of core (11) and set up left slider (3) and right slider (4), set up a set of rotatory briquetting subassembly respectively at the front end of core (11) and rear end, rotatory briquetting subassembly includes: revolving cylinder (5) and briquetting (6), revolving cylinder (5) are installed on post forming template (1) and its piston rod is vertical upwards to be worn out, and briquetting (6) are connected to the upper end of piston rod.

2. The rotary press block positioning mechanism of the double-color mold according to claim 1, wherein a limiting groove (51) is formed in a side wall of a piston rod of the rotary cylinder (5), the limiting groove (51) is L-shaped, a limiting pin (7) is horizontally installed inside the post-secondary molding template (1), and an end of the limiting pin (7) falls into the limiting groove (51).