A slide rail type straight lifting structure

Abstract

The application relates to a slide rail type straight ejection structure and relates to the technical field of injection molds. The slide rail type straight ejection structure comprises a straight ejection seat fixed in an ejection plate of a mold, a containing groove is formed in the straight ejection seat, and a pin groove is arranged on the straight ejection seat. A straight ejection pin comprises a tail part, a straight ejection pin rod and a head part. The tail part is arranged in the containing groove of the straight ejection seat, the straight ejection pin rod is provided with two inclined surfaces and a step, and the head part is provided with a clamping hook of a shaped product. A pin is arranged through the tail part of the straight ejection pin and serves to connect the straight ejection seat and the straight ejection pin. The slide rail type straight ejection structure can solve the problems of weak strength and interference of an inclined pin and has the property of mass production when the product is relatively small, the number of hooks is large, and the withdrawal directions are different, and the traditional inclined pin cannot meet the requirements.

Description

TECHNICAL FIELD

[0001] The present application relates to injection mold technical field, specifically is related to a slide rail type straight top structure.

BACKGROUND

[0002] When injection molding plastic products, if the product has a shape with a hook in the opening direction, the inclined pin forming is usually used. However, according to the product function requirements, the smaller product also has multiple hooks. Please refer to Figure 1 and Figure 2 , wherein Figure 1 shows a product schematic diagram, Figure 2 shows a cross-sectional view of the product. The product 10 has four hooks 20, and the four hooks need to be formed by four inclined pins in different directions. Because the product is small, the space is limited, and the general inclined pin structure is used for forming, the strength of the four inclined pins is very weak, and they will interfere with each other, so that the four inclined pins in the product cannot be withdrawn from the hooks 20 of the product 10 at the same time.

[0003] Therefore, it is necessary to develop a slide rail type straight top structure to solve the above problems.

SUMMARY

[0004] Therefore, the purpose of the present application is to provide a slide rail type straight top structure, which is applied to a mold, and meets the structure forming of multiple hooks in a smaller space, and solves the problems of weak inclined pin strength and interference.

[0005] In order to achieve the above purpose, the present application adopts the following technical scheme:

[0006] A slide rail type straight top structure is applied to a mold, the mold includes a male mold plate, a female mold plate, an ejection plate, a male mold core, a female mold core, and a cavity formed by the male mold core and the female mold core, a product is formed in the cavity, the product has four hooks, and the slide rail type straight top structure includes:

[0007] A straight top seat is fixed in the ejection plate of the mold, an accommodating groove is formed in the inclined pin seat, and a pin groove is provided;

[0008] The straight ejector pin comprises a tail, a straight ejector pin rod and a head. The tail is arranged in the accommodating groove of the straight ejector seat and has a gap with the accommodating groove. The straight ejector pin rod has a step A on one side close to the product hook, a slope A on the step A, a step B on the other side, and a slope B on the step B. The straight ejector pin penetrates the male mold core, and the male mold core has an accommodating space for the straight ejector pin. The accommodating space has two slopes which respectively resist the slope A and the slope B of the straight ejector pin rod, so that the straight ejector pin moves longitudinally and transversely at the same time, and the straight ejector pin exits the product hook and returns to the original position. The head forms the product hook.

[0009] The pin penetrates the tail of the straight ejector pin and has two ends extending from the tail of the straight ejector pin. The extending part is inserted into the pin slot. The pin connects the straight ejector pin and the straight ejector seat. When the straight ejector pin moves transversely, the pin slides in the pin slot. The resistance of the straight ejector pin during the transverse movement is small, so that the straight ejector pin moves smoothly.

[0010] Further, the accommodating groove is cross-shaped and can accommodate four straight ejector pin tails.

[0011] Further, the pin slot is in the shape of a key slot.

[0012] Further, the gap between the tail of the straight ejector pin and the accommodating groove is 0.1 mm.

[0013] Further, the accommodating space for the straight ejector pin in the male mold core can be surrounded by an insert, which is convenient for processing. Compared with the prior art, the straight ejector structure of the present application is provided. After the mold is opened, the ejection plate moves longitudinally along the opening direction of the mold, drives the straight ejector seat and the straight ejector pin to move longitudinally. Because the front slope of the straight ejector pin rod is resisted by the male mold core, the straight ejector pin moves transversely and exits the product hook at the same time. When the straight ejector pin moves transversely, the pin slides in the pin slot. Because the gap is provided between the tail of the straight ejector pin and the accommodating groove, and the pin connects the straight ejector pin and the straight ejector seat, the resistance of the straight ejector pin during the transverse movement is small, so that the straight ejector pin moves smoothly. The scheme of the present application can be provided with one or more straight ejector pins in the accommodating groove of the straight ejector seat. Therefore, the straight ejector structure of the present application can form the structure of multiple hooks in a small space, solves the problems of weak strength and interference of the inclined pin, has good stability and has the property of mass production. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 The drawing shows a schematic view of a product.

[0015] Figure 2 The drawing shows a sectional view of a product.

[0016] Figure 3 Fig. 1 shows a combination schematic diagram of a slide rail type straight ejection structure of the present application.

[0017] Figure 4 Fig. 2 shows an exploded schematic diagram of a slide rail type straight ejection structure of the present application.

[0018] Figure 5 Fig. 3 shows a combination partial sectional view of a slide rail type straight ejection structure of the present application.

[0019] Figure 6 Fig. 4 shows a schematic diagram of a slide rail type straight ejection structure in a mold of the present application.

DETAILED DESCRIPTION

[0020] In order to have a further understanding of the purpose, technical effects and technical means of the present application, the following will be described in detail in combination with the drawings.

[0021] Please refer to Figure 3 , Figure 4 and Figure 5 , wherein Figure 3 Fig. 1 shows a combination schematic diagram of a slide rail type straight ejection structure of the present application, Figure 4 Fig. 2 shows an exploded schematic diagram of a slide rail type straight ejection structure of the present application, Figure 5 Fig. 3 shows a combination partial sectional view of a slide rail type straight ejection structure of the present application, in the present embodiment, a slide rail type straight ejection structure 11 of the present application is applied in a mold, the mold comprises a male mold plate 30, a female mold plate 40, an ejection plate 50, a male mold core 31, a female mold core 41 and a cavity formed by the male mold core 31 and the female mold core 41, a product 10 is formed in the cavity, the product 10 has four reverse hooks 20, the slide rail type straight ejection structure 11 comprises:

[0022] a straight ejection seat 100 fixed in the ejection plate 50 of the mold, a containing groove 101 is formed on the straight ejection seat 100, and a pin groove 102 is arranged on the straight ejection seat 100;

[0023] The straight ejector pin 200 includes a tail 210, a straight ejector pin rod 220 and a head 230; the tail 210 is arranged in the accommodating groove 101 of the straight ejector seat 100, and a gap is arranged between the tail 210 and the accommodating groove 101; a step A step 221 is protruded on one side of the straight ejector pin rod 220 close to the product 10 barb 20, an inclined surface A inclined surface 222 is arranged at the A step 221, a step B step 223 is also protruded on the other side, and an inclined surface B inclined surface 224 is arranged at the B step 223; the straight ejector pin rod 220 penetrates the insert 32 of the male mold core 31, and correspondingly, the accommodating space 33 of the straight ejector pin 200 is arranged in the insert 32, two inclined surfaces are arranged in the accommodating space 33, which resist the A inclined surface 222 and the B inclined surface 224 of the straight ejector pin rod 220 respectively, so that the straight ejector pin 200 moves longitudinally while moving transversely, and the straight ejector pin 200 is withdrawn from the product 10 barb 20 and returned; and the head 230 shapes the product 10 barb 20.

[0024] The pin 300 penetrates the tail 210 of the straight ejector pin 200, and the two ends of the pin 300 protrude from the tail 210 of the straight ejector pin 200, and the protruding part is inserted into the pin groove 102, so that the pin 300 connects the straight ejector pin 200 and the straight ejector seat 100; when the straight ejector pin 200 moves transversely, the pin 300 slides along the pin groove 102 as a slide rail, and the resistance of the straight ejector pin 200 during transverse movement is very small, so that the straight ejector pin 200 moves smoothly.

[0025] The accommodating groove 101 is in a cross shape, and can accommodate the tails 210 of four straight ejector pins 200.

[0026] The gap between the tail 210 of the straight ejector pin 200 and the accommodating groove 101 is 0.1mm, and the gap makes the resistance of the straight ejector pin 200 during withdrawal very small.

[0027] The straight ejector pin rod 220 penetrates the male mold plate 30, and correspondingly, the accommodating space is arranged in the male mold plate 30 for the straight ejector pin 200 to penetrate.

[0028] In this embodiment, the accommodating space 33 of the straight ejector pin 200 around the insert 32 is formed in the male mold core 31, and the processing is more convenient.

[0029] In this embodiment, the number of the product 10 barbs 20 is four, and the four barbs are in different directions; the product 10 is relatively small, and the space in the middle is limited; the scheme of the present application arranges four straight ejector pins 200 in the accommodating groove 101 of the straight ejector seat 100, and connects them by the pin 300, so that the four barbs 20 of the product 10 are shaped at the same time, and then the straight ejector pins 200 are withdrawn from the product 10 barbs 20, and the product 10 is smoothly ejected.

[0030] Please refer to Figure 6As shown, it illustrates a schematic diagram of a slide rail type straight ejection structure of the present application in a mold. After the mold is closed, the head 230 of the straight ejection pin 200 is matched with the barb 20 of the formed product 10; after the mold is opened, the male mold plate 30 is separated from the female mold plate 40, the ejection plate 50 moves longitudinally, driving the straight ejection seat 100 and the straight ejection pin 200 to move longitudinally; since the A slope 222 of the straight ejection pin rod 220 is resisted by the slope of the insert 32 of the male mold core 31, the straight ejection pin 200 will simultaneously move transversely and exit the barb 20 of the product 10; since the pin 300 is used to connect the straight ejection pin 200 and the straight ejection seat 100, the pin 300 slides in the pin groove 102 as a slide rail, and since the tail 210 of the straight ejection pin 200 is provided with a gap with the accommodating groove 101, the resistance of the straight ejection pin 200 during the transverse movement is very small, so that the straight ejection pin 200 moves smoothly; after the straight ejection pin 200 exits the barb 20, the straight ejection pin 200 continues to move longitudinally to eject the product 10, so as to eject the product 10 from the male mold core 31; after the product 10 is taken away, the ejection plate 50 moves longitudinally to reset, driving the straight ejection seat 100 and the straight ejection pin 200 to move longitudinally; since the B slope 224 of the straight ejection pin rod 220 is resisted by the slope of the insert 32 of the male mold core 31, the straight ejection pin 200 will simultaneously move transversely, and the straight ejection pin 200 resets while the ejection plate 50 carries the straight ejection seat 100 to reset.

[0031] In summary, the slide rail type straight ejection structure 11 of the present application, after the mold is opened, the ejection plate 50 moves longitudinally along the opening direction of the mold, driving the straight ejection seat 100 and the straight ejection pin 200 to move longitudinally, the straight ejection pin 200 will simultaneously move transversely and exit the barb 20 of the product 10, the pin 300 is used to connect the straight ejection pin 200 and the straight ejection seat 100, when the straight ejection pin 200 moves transversely, the pin 300 slides in the pin groove 102 as a slide rail, and since the tail 210 of the straight ejection pin 200 is provided with a gap with the accommodating groove 101, the resistance of the straight ejection pin 200 during the transverse movement is very small, so that the straight ejection pin 200 moves smoothly, the scheme of the present application can be one or more straight ejection pins 200 which are provided in the accommodating groove 101 of the straight ejection seat 100, therefore, the slide rail type straight ejection structure 11 of the present application meets the structure forming of multiple barbs in a smaller space, solves the problems of weak strength and interference of the inclined pin, has good stability and has the property of mass production.

[0032] The technical principles of the present application are described above in combination with specific embodiments, and these descriptions are only for explaining the principles of the present application and cannot be explained as limitations on the protection scope of the present application in any way. Based on the explanations herein, other specific embodiments of the present application can be conceived by those skilled in the art without creative labor, and these embodiments will fall within the protection scope of the present application.

Claims

1. A slide rail type straight ejection structure applied to a mold, the mold comprising a male mold plate, a female mold plate, an ejection plate, a male mold core, and a female mold core, characterized in that, The application relates to a straight ejector pin and a straight ejector seat for a mould. The straight ejector seat is fixed in the ejector plate of the mould, and a containing groove and a pin groove are formed in the straight ejector seat. The straight ejector pin comprises a tail, a straight ejector pin rod and a head. The tail is arranged in the containing groove of the straight ejector seat, and a gap is formed between the tail and the containing groove. A step is formed on one side of the straight ejector pin rod near the product hook, and the step is an A step.

2. The slide rail type straight roof structure according to claim 1, wherein An inclined surface is arranged on the A step, and the inclined surface is an A inclined surface.

3. The slide rail type straight roof structure according to claim 1, wherein A step is also formed on the other side of the straight ejector pin rod, and the step is a B step.

4. The slide rail type straight roof structure according to claim 1, wherein An inclined surface is arranged on the B step, and the inclined surface is a B inclined surface. The straight ejector pin rod penetrates the male mould core. Correspondingly, a containing space for the straight ejector pin is arranged in the male mould core. Two inclined surfaces are arranged in the containing space. The two inclined surfaces respectively resist the A inclined surface and the B inclined surface of the straight ejector pin rod. When the straight ejector pin moves longitudinally, the straight ejector pin simultaneously moves horizontally. The A inclined surface is used for making the straight ejector pin exit the product hook. The B inclined surface is used for making the straight ejector pin return. A pin is arranged to penetrate the tail of the straight ejector pin. The pin is inserted into the pin groove. The pin is used for connecting the straight ejector pin and the straight ejector seat. When the straight ejector pin moves horizontally, the pin slides along the pin groove. The resistance of the straight ejector pin during the horizontal movement is very small. The straight ejector pin moves smoothly. The containing groove is in a cross shape. The containing groove can contain four straight ejector pin tails. The pin groove is in a key groove shape. The gap between the tail of the straight ejector pin and the containing groove is 0.1mm. The containing space for the straight ejector pin in the male mould core can be made into an insert. The A inclined surface of the straight ejector pin rod resists the inclined surface of the insert of the male mould core. The straight ejector pin simultaneously moves horizontally.

Images