CN213564127U

CN213564127U - Injection mold of pen tube

Info

Publication number: CN213564127U
Application number: CN202022539854.0U
Authority: CN
Inventors: 孙厚清
Original assignee: Hangzhou Character Stationery Co ltd
Current assignee: Hangzhou Character Stationery Co ltd
Priority date: 2020-11-06
Filing date: 2020-11-06
Publication date: 2021-06-29
Anticipated expiration: 2030-11-06

Abstract

The utility model discloses an injection mold of pen tube, including lower bolster, top plate and cope match-plate pattern, be equipped with a plurality of die cavitys on the lower bolster, be equipped with the die rod in the die cavity, the lower bolster both sides are equipped with the fixing base, the fixing base is equipped with longitudinal arrangement's fixed slot, one side that the lower bolster was kept away from to the fixed slot is equipped with the fixed orifices rather than perpendicular intercommunication, swing joint has the bolt tip in the fixed orifices, the one end that the fixed slot was kept away from to the bolt tip is connected with the spring, the lower bolster both sides are equipped with the fixed plate, the fixed plate lower surface is equipped with the dead lever relative with the fixed slot position, the dead lever lower extreme designs into the end that the ellipse shape is gradually sharp, the one side. The utility model discloses a cooperation of dead lever, bolt and spring can be fast automatic with cope match-plate pattern and lower bolster connection fixed, prevents that the mould from rocking, has improved the stability of mould at the in-process of moulding plastics, has improved the quality of production product.

Description

Injection mold of pen tube

Technical Field

The utility model relates to an injection mold technical field, concretely relates to injection mold of pen tube.

Background

Injection molding is a process used to mass produce parts of certain shapes. Specifically, plastic raw materials which are heated and melted are injected into a mold cavity of a plastic mold at high pressure by an injection molding machine, and after cooling and solidification, a plastic molding product is obtained. However, the existing pen tube injection mold generally connects the upper template and the lower template through bolts to carry out mold closing, the connection mode is complicated, and the bolts need to be detached one by one during mold opening, which is very troublesome; however, if the upper template and the lower template are not fixed by bolts, the stability of the mold after the material is injected is poor, the material cannot fix the upper template and the lower template in the cooling process, the mold is easy to shake and dislocate, and the quality of the produced product is reduced.

SUMMERY OF THE UTILITY MODEL

The utility model provides a solve above-mentioned problem, provide an injection mold of pen tube.

The utility model adopts the following technical scheme:

the utility model provides an injection mold of pen tube, is including fixing the lower bolster on the lower bolster and connecting the cope match-plate pattern on last roof, be equipped with a plurality of die cavitys on the lower bolster, be equipped with the die rod in the die cavity, the lower bolster both sides are equipped with the fixing base, the fixing base is equipped with longitudinal arrangement's fixed slot, one side that the lower bolster was kept away from to the fixed slot is equipped with the fixed orifices rather than perpendicular intercommunication, swing joint has the bolt in the fixed orifices, the one end that the fixed slot was kept away from to the bolt is connected with the spring, the lower bolster both sides are equipped with the fixed plate, the fixed plate lower surface is equipped with the dead lever relative with the fixed slot position, the dead lever lower extreme designs into the tip that ellipse shape is gradually.

As an optimal technical scheme of the utility model, the fixed orifices top is equipped with the through-hole rather than the intercommunication, swing joint has the connecting rod in the through-hole, the lower extreme and the bolt fixed connection of connecting rod.

As an optimal technical scheme of the utility model, the top surface that the bolt is located fixed slot one end is equipped with the arc domatic to terminal transition shrink.

As a preferred technical scheme of the utility model, the upper surface of cope match-plate pattern is equipped with the ingate, the ingate is connected with the sprue, the sprue is equipped with a plurality of subchannels that communicate with the die cavity, it is equipped with the outer runner with the ingate intercommunication to go up the roof.

The utility model has the advantages that:

the utility model discloses simple structure, convenient to use through the cooperation of dead lever, bolt and spring, can be fast automatically with cope match-plate pattern and lower bolster connection fixed, prevents that the mould from rocking, has improved the stability of mould at the in-process of moulding plastics, has improved the quality of production product.

Drawings

FIG. 1 is a front view of the present invention;

FIG. 2 is an enlarged schematic view of the structure at A;

fig. 3 is a top view of the fixing base.

The symbols in the drawings illustrate that:

1: lower backing plate, 2: lower die plate, 3: upper top plate, 4: upper template, 5: mold cavity, 6: mold rod, 7: fixing base, 8: fixing groove, 9: fixing hole, 10: a pin, 11: arc slope, 12: spring, 13: through hole, 14: connecting rod, 15: fixing plate, 16: fixing rod, 17: slot, 18: inner gate, 19: main flow passage, 20: branch passages, 21: and an outer gate.

Detailed Description

The invention will now be described in further detail with reference to the accompanying drawings.

As shown in fig. 1 to 3, an injection mold for a pen barrel includes a lower mold plate 2 fixed on a lower base plate 1 and an upper mold plate 4 connected to an upper top plate 3. The lower template 2 is provided with a plurality of die

cavities

5, and 6, 8 or 12 die cavities 5 can be designed according to the size of the die. A mold rod 6 is arranged in the mold cavity 5, and a mold cavity for molding the pen tube is formed by enclosing the outer side wall of the mold rod 6 and the inner side wall of the mold cavity 5. Fixing seats 7 are arranged on two sides of the lower template 2, fixing seats 7 are provided with fixing grooves 8 which are longitudinally arranged, one side, far away from the lower template 2, of each fixing groove 8 is provided with a fixing hole 9 which is vertically communicated with the fixing groove 8, an inserting tip 10 is movably connected to the fixing hole 9, and an arc-shaped slope 11 which is contracted towards the tail end in a transition mode is arranged on the upper surface of one end, located at one end of each fixing groove 8, of the inserting tip 10. One end of the pin 10 far away from the fixing groove 8 is connected with a spring 12, and the other end of the spring 12 is fixedly connected to the innermost side wall of the fixing hole 9. A through hole 13 communicated with the fixing hole 9 is formed above the fixing hole 9, the position of the through hole 13 corresponds to the position of the fixing hole 9 in parallel, a connecting rod 14 is movably connected in the through hole 13, and the lower end of the connecting rod 14 is fixedly connected with the inserting tip 10. The pin 10 can be controlled to retract into the fixing hole 9 or extend out of the fixing hole 9 into the fixing groove 8 by pulling the connecting rod 14. Fixing plates 15 are arranged on two sides of the lower template 2, fixing rods 16 opposite to the fixing grooves 8 are arranged on the lower surfaces of the fixing plates 15, the lower ends of the fixing rods 16 are designed to be elliptical tapered ends, and a slot 17 is arranged on one surface, opposite to the fixing hole 9, of the fixing rods 16 above the ends. The upper surface of the upper template 4 is provided with an inner sprue 18, the inner sprue 18 is connected with a main runner 19, the main runner 19 is provided with a plurality of sub-runners 20 communicated with the mold cavity 5, and the upper top plate 3 is provided with an outer sprue 21 communicated with the inner sprue 18.

The utility model discloses an application principle: when the die is closed, the upper die plate 4 moves downwards, the fixing rod 16 is driven to move downwards, the fixing rod 16 is gradually inserted into the fixing groove 8, the end of the inserted pin 10 without external force is located in the fixing groove 8, when the end of the fixing rod 16 is abutted to the end of the inserted pin 10, the end of the fixing rod 16 continues to be pressed downwards along the arc-shaped slope surface 11, the inserted pin 10 is compressed into the fixing hole 9, when the fixing rod 16 moves downwards to the position of the slot 17 and is aligned with the fixing hole 9, the pressure resisting against the inserted pin 10 disappears, the inserted pin 10 extends out and is inserted into the slot 17 under the restoring action of the spring 12, the upper die plate 4 and the lower die plate 2 are fixedly connected, the upper die plate and the lower die plate are automatically clamped, the oval-shaped tapered end of the fixing rod 16 and the arc-shaped slope surface of the inserted pin 10 are designed, the oval-shaped tapered end of the. When the mold is opened, the inserting pin 10 is firstly pulled back into the fixing hole 9 through the connecting rod 14, so that the inserting pin 10 is separated from the slot 17, and then the upper template 4 is moved upwards to separate the upper template 4 and the lower template 2, so that the operation is simple and convenient.

Finally, it should be noted that: these embodiments are merely illustrative of the present invention and do not limit the scope of the invention. In addition, other variations and modifications will be apparent to persons skilled in the art based on the foregoing description. And are neither required nor exhaustive of all embodiments. And obvious changes and modifications may be made without departing from the scope of the present invention.

Claims

1. The utility model provides an injection mold of pen tube, includes lower bolster (2) of fixing on lower bolster (1) and upper die plate (4) of connecting on cope match-plate pattern (3), its characterized in that: a plurality of die cavities (5) are arranged on the lower template (2), die rods (6) are arranged in the die cavities (5), fixing seats (7) are arranged on two sides of the lower template (2), the fixed seat (7) is provided with a fixed groove (8) which is longitudinally arranged, one side of the fixed groove (8) far away from the lower template (2) is provided with a fixed hole (9) which is vertically communicated with the fixed groove, a bolt (10) is movably connected in the fixing hole (9), one end of the bolt (10) far away from the fixing groove (8) is connected with a spring (12), fixing plates (15) are arranged on two sides of the lower template (2), fixing rods (16) opposite to the fixing grooves (8) are arranged on the lower surfaces of the fixing plates (15), the lower end of the fixing rod (16) is designed into an elliptic tapered end, and a slot (17) is arranged on one surface, which faces the fixing hole (9), of the fixing rod (16) above the end.

2. The injection mold of a pen barrel according to claim 1, wherein: through-hole (13) rather than the intercommunication is equipped with above fixed orifices (9), swing joint has connecting rod (14) in through-hole (13), the lower extreme and the bolt (10) fixed connection of connecting rod (14).

3. The injection mold of a pen barrel according to claim 1, wherein: the upper surface of the inserted pin (10) at one end of the fixing groove (8) is provided with an arc-shaped slope surface (11) which is contracted towards the tail end in a transition way.

4. The injection mold of a pen barrel according to claim 1, wherein: the upper surface of cope match-plate pattern (4) is equipped with interior runner (18), interior runner (18) are connected with sprue (19), sprue (19) are equipped with a plurality of subchannel (20) that communicate with die cavity (5), go up roof (3) and be equipped with outer runner (21) with interior runner (18) intercommunication.