CN115256790A - Pre-pushing jig and auxiliary positioning carrier comprising same - Google Patents

Abstract

The invention discloses a pre-push jig and an auxiliary positioning carrier including the pre-push jig. The pre-push jig includes a pin, a base, a baffle, a chute insert, a spring seat, an elastic block insert and a spring , the base is installed with positioning pins, the front end of the base is installed with a baffle plate for holding up the clamping carrier, the base is embedded with a chute insert and a spring seat, and the chute insert is A plurality of guide grooves are provided, and an elastic block insert for pre-pushing and positioning the preform is slidably placed in the guide groove, and the tail of the elastic block insert is elastically connected with the spring seat through a spring. Through the above method, the present invention is suitable for the molding of preformed products, realizes positioning outside the forming mold, and then puts it into the mold to produce a product that meets the design requirements, and solves the problem that the preformed parts are not placed in place.

Description

A pre-push jig and an auxiliary positioning carrier including the pre-push jig

technical field

The invention relates to the technical field of injection molding, in particular to a pre-push jig and an auxiliary positioning carrier including the pre-push jig.

Background technique

The production process of the existing connecting wire products includes the in-mold forming process. Before the in-mold forming, the preform needs to be placed on the carrier to the predetermined position of the mold to form a qualified product. The preform includes the first entity part and the second entity part, one end of the second entity part is connected to the first entity part, the main problems of the current connecting line USB_C internal mold forming are as follows: the length control of the forming internal mold is unstable, and the position of the connecting line in the mold is placed by the staff It is not uniform and fixed, and the positioning mechanism cannot be designed according to the product requirements in the mold, resulting in relatively large fluctuations in the size of the formed product, and some of them exceed the specifications required for forming and assembly, affecting function and appearance.

As shown in Figure 1, the molding area 02 in the mold is a cavity structure. The preform 01 is first clamped by the carrier and then enters the molding mold without moving. However, the position of the preform in the carrier is not fixed and unified. Yes, there will be a positional deviation between the connector and the connecting wire relative to the forming mold, which will lead to product quality problems or mold damage. The connector of preform 01 is equivalent to the first solid part of the preform, and the preform 01 The connecting line of the connector is equivalent to the second solid part of the preform.

Only when the front end of the preform 01 is on the reference plane 03 can the positioning of the product size be ensured. The connector cannot be pressed strongly, otherwise the components will be damaged. When the position of the preform 01 and the connecting wire are not fixed, the preform does not touch the reference plane. On 03, the component retreats beyond the boundary of the molding area 02. If the position deviation is small, the forming gate will be blocked, the product will not be full, and the product quality will be problematic; if the position deviation is serious, the connector will interfere with the mold, and the mold will Clamping the mold will crush the connector, and in severe cases, the mold will be crushed, resulting in production suspension, mold maintenance, and mold damage.

The Chinese patent with the patent number CN201811149919.1 discloses a neck rope or connecting wire-like plastic-encapsulated auxiliary drawing iron wire fixture, which can play a certain role in forming auxiliary positioning, but the structure is extremely complicated, and it is actually carried out on the forming mold. Improved, cumbersome operation and high cost.

If the position deviation of connectors and connecting wires is not corrected, the product will not meet the delivery requirements. In order to solve the problem of improper placement of connectors and connecting wires, reduce production defects and improve product competitiveness, a new product is invented. An auxiliary jig that can adjust the positions of connectors and connecting wires outside the mold. The positions of the connecting wires and connectors have been adjusted with the auxiliary jig before molding, and then put into the mold for molding.

Contents of the invention

The technical problem mainly solved by the present invention is to provide a pre-push jig and an auxiliary positioning carrier including the pre-push jig, which are suitable for forming preformed products, realize positioning outside the forming mold, and then put them into the mold to produce Products that meet the design requirements can solve the problem of improper placement of the first entity and the second entity, reduce production defects, and enhance product competitiveness.

In order to solve the above-mentioned technical problems, a technical solution adopted by the present invention is to provide a pre-push jig, which includes a pin, a base, a baffle, a chute insert, a spring seat, an elastic block insert and The base is equipped with positioning pins, the front end of the base is equipped with a baffle plate for holding the material carrier, the base is embedded with a chute insert and a spring seat, and the chute insert A number of guide grooves are arranged on the upper part, and an elastic block insert for pre-push positioning the preform is slidably placed in the guide groove, and the tail of the elastic block insert is elastically connected with the spring seat through a spring.

Preferably, the preform includes a first solid part and a second solid part connected to each other, the preform is a data line, the first solid part is a connector, and the second solid part is connection line.

Preferably, one end of the spring block insert close to the baffle is provided with a boss against the first solid part.

Preferably, the spring block insert is provided with a placement platform and a slot, the placement platform bears the first solid part, and the slot holds the second solid part.

Preferably, the guide groove is in the shape of a dovetail, and guide rails are provided on both sides of the spring block insert, and the guide rails are slidably matched with the guide groove.

An auxiliary positioning carrier including a pre-push jig, comprising a pre-push jig and a clip carrier, the clip carrier is positioned and placed on the pre-push jig by pins.

Preferably, the material-inserting carrier is provided with a waist-shaped hole that fits with a pin, and the pin and the waist-shaped hole are in clearance fit.

Preferably, the clamping carrier includes a carrier seat and a cover plate, the carrier seat is in a rectangular shape, an opening installation groove is provided on the front side of the carrier seat, and a positioning reference surface is provided at the front end of the opening installation groove , the rear side of the carrier seat is provided with a second solid part placement groove of the preform opposite to the opening installation groove one by one, and cover plates for clamping the preform are installed on the front and rear sides of the carrier seat.

Preferably, one end of the cover plate is rotatably hinged to the carrier seat, and the other end of the cover plate is fastened to the carrier seat through a buckle.

Preferably, a glue block is installed in the cover plate at a place opposite to the second solid part on the preform.

Compared with prior art, the beneficial effect of the present invention is:

It is suitable for the molding of preformed products. It can be positioned outside the forming mold when the connecting line has no positioning mechanism and the mold has no positioning device, and then put it into the mold to produce products that meet the design requirements;

Before molding, the position of the connecting wires and connectors has been adjusted with auxiliary fixtures, and then put into the mold for molding, which solves the problem of improper placement of connectors and connecting wires, reduces poor production and improves product competitiveness;

It solves the problem that products and molds need to add additional positioning features. This auxiliary positioning mechanism is simple and can be used for the internal molding design of most USB_C data connection lines.

Description of drawings

Fig. 1 is a schematic diagram of the internal molding structure of the current connection line.

Fig. 2 is a structural schematic diagram of a pre-push jig.

Fig. 3 is a schematic diagram of an exploded structure of a pre-pushing jig.

Fig. 4 is a schematic structural view of an auxiliary positioning carrier including a pre-push jig in an open state.

Fig. 5 is a schematic diagram of a closed state structure of an auxiliary positioning carrier including a pre-push jig.

Fig. 6 is a schematic diagram of the product of the present invention in an injection mold.

Among them, 01, preform, 011, first solid part, 012, second solid part, 02, forming area, 03, reference plane;

1. Pre-push fixture, 11. Pin, 12. Base, 13. Baffle plate, 14. Slide slot insert, 140. Guide groove, 15. Spring seat, 16. Spring block insert, 160. Guide rail, 161. Place platform, 162, draw-in groove, 163, boss, 17, spring;

2. Auxiliary positioning vehicle, 21. Carrier seat, 201. Opening installation slot, 202. Placement slot, 20. Positioning datum plane, 22. Cover plate, 23. Uli rubber block;

3. Injection mold.

Detailed ways

The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, so that the advantages and features of the invention can be more easily understood by those skilled in the art, so as to define the protection scope of the present invention more clearly.

Please refer to Fig. 1 to Fig. 6, the embodiment of the present invention comprises:

A pre-push jig and an auxiliary positioning carrier containing the pre-push jig, the auxiliary positioning carrier including the pre-push jig includes a clamping carrier 2 for clamping connecting lines and a pre-positioning support for auxiliary positioning The push jig 1 is used to pre-push the jig 1 to accurately position the preform 01 in the clamping carrier 2. The preform 01 includes a first solid part 011 and a second solid part 012 connected to each other. When After putting the carrier 2 with the preform 01 fixed into the injection mold 3 for molding, an inner mold (not shown) will be formed in the adjacent area of the first solid part 011. The preform 01 can be a prefabricated product that needs to be positioned outside the mold, the preform 01 can be a data cable, such as a USB_C data cable, the first solid part 011 is a connector, and the second solid part 012 is a connecting line , the clamping carrier 2 is positioned and placed on the pre-push jig 1 by the pin 11, the clamping carrier 2 is provided with a waist-shaped hole matching with the pin 11, and the clamping carrier 2 is positioned on the pre-push jig 1. The upper and lower directions of the jig 1 can be moved for rough positioning, and the pin 11 is matched with the gap of the waist hole, which is convenient for putting in and taking out the clamping carrier 2 .

The pre-push fixture 1 also includes a base 12, a baffle plate 13, a chute insert 14, a spring seat 15, an elastic block insert 16 and a spring 17, the base 12 is equipped with a positioning pin 11, and the base The front end of 12 is equipped with a baffle plate 13 used to withstand the clamping carrier 2 for precise positioning. The base 12 is embedded with a chute insert 14 and a spring seat 15. The four guides of the chute insert 14 Slidingly placed in the slot 140 is an elastic block insert 16 for pre-push positioning connecting wires. The tail of the elastic block insert 16 is elastically connected to the spring seat 15 through a spring 17. The opposite surface is provided with a spring counterbore for placing the spring 17 .

The chute insert 14 is embedded in the base 12 by screws, and the chute insert 14 presses the bullet insert 16 into a predetermined chute through the dovetail guide groove 140, and the bullet insert 16 Both sides of piece 16 are provided with guide rail 160 that slides with described guide groove 140, makes bullet block insert 16 can only move according to guide groove 140 direction, plays the effect of fixing bullet block insert 16 movement direction, and described bullet block The insert 16 is provided with a placement platform 161 and a slot 162, the placement platform 161 carries the first solid part 011, the slot 162 holds the second solid part 012, and the elastic block insert 16 is close to the baffle 13 One end of one end is provided with a boss 163 against the first solid part 011, and the bullet insert 16 can move in a fixed direction in the jig, and always bears the thrust from the spring 17, and uses this thrust to push the first solid part 011 and the second entity part 012 to a predetermined position, so as to ensure the product size.

The clamping carrier 2 includes a carrier seat 21 and a cover plate 22, the carrier seat 21 is rectangular, the front side of the carrier seat 21 is provided with an opening installation groove 201, and the front end of the opening installation groove 201 is provided with The positioning reference plane 20, the rear side of the carrier seat 21 is provided with a second solid part 012 placement groove 202 opposite to the opening installation groove 201 one by one, and the front and rear sides of the carrier seat 21 are provided with covers for clamping preforms plate 22, one end of the cover plate 22 is rotatably hinged on the carrier seat 21, and the other end of the cover plate 22 is fastened to the carrier seat 21 by a buckle lock, and the inside of the cover plate 22 is connected with the preformed The place opposite to the second entity part 012 on the part is installed with a Uli rubber block 23, which has a certain degree of elasticity, and does not damage the product while pressing the product.

When an auxiliary positioning carrier including a pre-push jig of the present invention is working, the empty clamping carrier 2 is placed on the pre-push jig 1, and the position of the clamping carrier 2 is roughly positioned by two pins 11, so that The product clamping points on the clamping carrier 2 are opposite to the pre-push station of the pre-push jig 1 one by one, and the clamping carrier 2 is pushed forward and backward, so that the carrier seat 21 withstands the baffle plate 13 for precise positioning and clamping. The material carrier 2 is positioned well, open the two cover plates 22, first position the front end of the preform 01, then press the first solid part 011 into the bullet insert 16, and then straighten out the second solid part 012 and press it into the card The slot 162 and the second solid part are placed in the slot 202, and the spring block insert 16 pushes the first solid part 011 forward under the thrust of the spring 17, and the front end of the preform is in contact with the positioning reference surface 20 to ensure that the first solid part 011 and the second entity part 012 are in the correct position. After the four sets of products are installed, cover the two cover plates 22 and lock them tightly to avoid position changes between the first entity part 011 and the second entity part 012 and ensure the assembly line Size, after the cover plate 22 compresses the product, the clamping carrier 2 is taken out from the pre-push jig 1 and put into the injection mold 3, as shown in Figure 6, the injection mold 3 is closed and injection molded, and the finished product is taken out.

This auxiliary positioning carrier can be designed and changed according to the product characteristics of the project. For example, it is not limited to the forming of connecting lines, and this structure can be used for similar pre-assisted positioning.

The invention provides a pre-push jig and an auxiliary positioning carrier including the pre-push jig, which are suitable for forming preformed products, realize positioning outside the forming mold, and then put them into the mold to produce products that meet the design requirements, solving the problem of The problem of improper placement of the first entity department and the second entity department reduces production defects and improves product competitiveness.

The above is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process conversion made by using the description of the present invention and the contents of the accompanying drawings, or directly or indirectly used in other related technologies fields, all of which are equally included in the scope of patent protection of the present invention.

Claims (10)

1. The utility model provides a push away tool in advance which characterized in that: the automatic positioning device comprises a pin, a base, a baffle, a chute insert, a spring seat, an elastic block insert and a spring, wherein the pin is installed on the base and used for positioning, the baffle used for propping against a clamping carrier is installed at the front end of the base, the chute insert and the spring seat are embedded in the base, a plurality of guide grooves are formed in the chute insert, the elastic block insert used for pre-positioning a preformed piece is placed in the guide grooves in a sliding mode, and the tail portion of the elastic block insert is connected with the spring seat through the spring in an elastic mode.

2. The pre-push jig of claim 1, wherein: the pre-formed piece comprises a first solid portion and a second solid portion which are connected with each other, the pre-formed piece is a data line, the first solid portion is a plug connector, and the second solid portion is a connecting line.

3. The pre-push jig of claim 2, wherein: and a boss abutting against the first solid part is arranged at one end of the elastic block insert close to the baffle.

4. The pre-push jig of claim 2, wherein: the elastic block insert is provided with a placing platform and a clamping groove, the placing platform bears the first entity portion, and the clamping groove clamps the second entity portion.

5. The pre-push jig of claim 1, wherein: the guide groove is dovetail-shaped, guide rails are arranged on two sides of the elastic block insert, and the guide rails are in sliding fit with the guide groove.

6. The utility model provides an assistance-localization real-time carrier that contains tool that pushes away in advance which characterized in that: the pre-pushing jig comprises the pre-pushing jig and the material clamping carrier, wherein the material clamping carrier is positioned and placed on the pre-pushing jig through pins.

7. The auxiliary positioning carrier comprising a pre-pushing fixture as claimed in claim 6, wherein: and waist-shaped holes matched with the pins are formed in the material clamping carrier, and the pins are in clearance fit with the waist-shaped holes.

8. The auxiliary positioning carrier comprising pre-push fixture of claim 6, wherein: press from both sides the material carrier and include carrier seat and apron, the carrier seat is the rectangle form, carrier seat front side is provided with the opening mounting groove, and the front end of opening mounting groove is provided with the location reference surface, carrier seat rear side is provided with the second entity portion standing groove with the one-to-one preforming piece of opening mounting groove, and the apron that is used for pressing from both sides tight preforming piece is installed to both sides around the carrier seat.

9. The auxiliary positioning carrier comprising a pre-pushing fixture as claimed in claim 8, wherein: one end of the cover plate is hinged to the carrier seat in a rotating mode, and the other end of the cover plate is locked to the carrier seat through a buckle.

10. The auxiliary positioning carrier of claim 8, wherein: and a high-strength rubber block is arranged in the cover plate and opposite to the second entity part on the preformed piece.

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