TWI471214B - Structure of mold base for injection molding machine - Google Patents

Description

Injection molding machine mold base structure

The invention relates to a mold base structure of an injection molding machine, in particular to a mold base structure which has the strength and can conveniently assemble various sizes of molds, and is mainly designed by the design of the slope locking groove, and the above effects can be achieved by the invention. .

According to the injection molding machine, it is mainly a machine for mass production of plastic products. The plastic product manufacturing process is to put a solid polymer (ie plastic) material into the feeding unit, and then The injection tube is pressurized and heated to form the solid plastic material into a molten fluid, and the fluid-like plastic material is injected into the mold under pressure. The mold is mainly divided into male and female molds, and assembled on the fixed and movable mold bases respectively, so that when the mold is closed, the fluid plastic material is injected into the mold, and when the temperature is cooled, it is solidified in the mold cavity. Plastic products; therefore, various molds of different sizes can be assembled corresponding to the products on the two mold bases.

The general mold assembly method is as shown in the fifth figure. The two templates (4) of the injection machine are provided with lateral horizontal grooves (41) at the inner surface, and the horizontal horizontal grooves (41) are available. The mold (5) is disposed on the template (4), and the mold is inserted into the horizontal groove (41) by the lock seat (42), and the mold is passed through a bolt (43) through a lock (44) to the lock seat (42). (5) Fixed, because the fixing of the mold (5) is adjusted in the horizontal groove (41) by the lock (44), so the relative lock (44) is in the horizontal groove for the size of the mold (5). The locking position corresponding to the lock seat (42) in the groove (41) is also different. However, there are many disadvantages and inconveniences in actual production and use, as follows:

1. When setting up a large mold, since the horizontal groove can only move in the horizontal direction, it is not securely fixed except for the fixing of the large mold, and it cannot be locked when the mold is too small.

2. Generally, the horizontal groove is a T-shaped groove (as shown in the fifth figure), so it is necessary to correspondingly set the T-shaped lock seat which can be oppositely arranged, thus increasing the manufacturing cost.

3. The inner wall surface of the T-shaped horizontal groove has two planes in contact with the T-shaped lock seat, and the corner of the plane must be a right-angled and relatively sharp concave angle, so when the T-type lock seat is strongly pulled Here, the weakest point is formed, so there is some smell when it is deformed or cracked.

4. After the T-shaped horizontal groove is machined on the mold base, a concave notch state with hollowed-out sides of the mold base is formed, which may affect the stress strength of the overall mold base.

Therefore, in view of this, the inventor has been researching and improving the existing structure for many years of rich experience in design and development and actual production of the relevant industry, thus inventing a mold base for injection molding machine, in order to achieve better practical value. The purpose of the person.

The main object of the present invention is to provide a mold base structure for an injection molding machine, and more particularly to an injection mold base structure for assembling a male and female molds, and a tilt mold clamping groove is provided on the mold base to provide a mold base which is not easily broken. And the mold base with the overall strength is the purpose.

The purpose and function of the injection molding machine mold base structure of the present invention are achieved by the following techniques:

The movable mold base and the fixed mold base are respectively arranged on the injection molding machine to respectively assemble the male and female molds, wherein the opposite ends of the two mold bases respectively have a clamping unit provided with a diagonal inclination, and the mold clamping unit The unit includes a circular hole extending obliquely from the end surface of the side wall of the die holder and a through hole communicating with the corresponding hole of the end face of the die holder, and the through hole has a stop section to the end face of the side wall; thereby, the die holder has the whole Strength, at the same time, can also achieve the convenience of assembling the mold.

The injection molding machine mold base structure is as described above, wherein a circular guide block is disposed in the circular hole, the circular guide block is provided with a screw hole, and a bolt is correspondingly locked, and the bolt corresponds to the through hole, and then the bolt is The bolt is corresponding to the clamping seat of the compression molding positioning die holder.

<present invention>

(1). . . Mold base

(2). . . Mold

(3). . . Clamping unit

(31). . . Round hole

(32). . . Slotted hole

(321). . . Stop segment

(33). . . Round guide block

(331). . . Screw hole

(34). . . bolt

(35). . . Clamp holder

(351). . . Arrival department

(352). . . perforation

(A). . . Screw assembly

<existing>

(4). . . template

(41). . . Horizontal groove

(42). . . Lock seat

(43). . . bolt

(44). . . Lock firmware

(5). . . Mold

First figure: a perspective exploded view of the present invention

Second figure: schematic diagram of the planar state of the present invention

Third drawing: a schematic cross-sectional view of the present invention

Fourth Figure: Three-dimensional assembly drawing of the present invention

Figure 5: Schematic diagram of the prior art

For a more complete and clear disclosure of the technical content, the purpose of the invention and the effects thereof achieved by the present invention, it is explained in detail below, and please refer to the drawings and drawings:

First, please refer to the first to fourth figures, which is a schematic exploded view of the injection molding machine mold base structure of the present invention. The injection molding machine is mainly provided with a movable mold base (1) and a fixed mold base (1) in two molds. A clamping unit (3) with a diagonal inclination is respectively arranged around the four ends of the corresponding end of the seat (1) for respectively assembling the male and female molds (2), and the clamping unit (3) Contains:

a circular hole (31), which is a hole which is obliquely penetrated from the end surface of the side wall of the die holder (1);

a through hole (32), a slot for the end face of the die holder (1) corresponding to the circular hole (31), and the through hole (32) to the side of the die holder (1) has a stop section (321);

a circular guide block (33), correspondingly placed in the circular hole (31), and can be adjusted in the circular hole (31), the circular guide block (33) is provided with a screw hole (331);

a bolt (34) corresponding to the screw hole (331) of the circular guide block (33) is locked, and the bolt (34) correspondingly passes through the through hole (32);

A clamping seat (35) is provided with an abutting portion (351) and a through hole (352). The through hole (352) is correspondingly provided for the bolt (34) to be locked, and the abutting portion (351) corresponds to the pressing portion. Position the mold (2).

Referring to the first to fourth figures, during assembly, the injection molding machine is mainly provided with a movable mold base (1) and a fixed mold base (1), and the two mold bases (1) respectively correspond to the assembly of the male and female molds. (2), wherein a clamping unit (3) provided with a diagonal inclination is respectively disposed around the four ends of the opposite ends of the two mold bases (1), and the clamping unit (3) is mainly provided with a a hole (31) in which the side end surface of the die holder is obliquely penetrated, and a through hole (32) which communicates with the end face of the die holder (1) corresponding to the circular hole (31), and the through hole (32) to the side wall The end surface has a stop section (321), and the circular guide block (33) is correspondingly placed in the circular hole (31), and the position of the circular guide block (33) in the circular hole (31) is corresponding to the mold (2) Depending on the size, the position of the circular guide block (33) relative to the circular hole (31) is adjusted according to the mold (2), and then the screw hole (331) on the circular guide block (33) is correspondingly locked. a bolt (34) is provided, and the bolt (34) is correspondingly passed through the slot (32) and then locked with the screw hole (331) of the circular guide block (33), so that the bolt (34) is limited by the stop section (321) without leaving the circular guide block (33) Dropped out of the die holder (1), and then the bolt (34) is inserted through the perforation (352) of the clamping seat (35), and the screw assembly (A) is correspondingly locked, and the clamping seat is 35) The abutting portion (351) corresponds to the compression positioning mold (2), and the mold (2) can be fixed by the mold clamping unit (3) of the mold base (1).

However, the above-described embodiments or drawings are not intended to limit the structure or the use of the present invention, and any suitable variations or modifications of the invention will be apparent to those skilled in the art.

As can be seen from the above description, the composition of the present invention and the implementation description are compared with the prior art, and we can know that the present invention has the following advantages, as follows:

1. The structure of the injection molding machine mold base of the present invention, by virtue of the arc-shaped design of the circular guide block, can greatly reduce the concentration of small stress, and achieve the advantages of sharp concave angle which is not easily deformed and does not cause cracking.

2. With the above, the arc shape of the circular guide block and the corresponding circular hole design can effectively and ease the application of the pressure and improve the strength, in addition to the convenience of processing.

3. The mold base structure of the injection molding machine of the present invention, so as to have a design of the stop section through the slot hole to the end surface of the side wall, so that after the bolt is correspondingly locked with the circular guide block, the mold is loosened when the mold of various sizes is replaced. After the seat, both the bolt and the circular guide block can be restrained by the stop section without letting the round guide block fall out of the mold base.

In summary, the embodiments of the present invention can achieve the expected use efficiency, and the specific structure disclosed therein has not been seen in similar products, nor has it been disclosed before the application, and has completely complied with the provisions of the Patent Law. And the request, the application for the invention of a patent in accordance with the law, please forgive the review, and grant the patent, it is really sensible.

(1). . . Mold base

(2). . . Mold

(3). . . Clamping unit

(31). . . Round hole

(32). . . Slotted hole

(321). . . Stop segment

(33). . . Round guide block

(331). . . Screw hole

(34). . . bolt

(35). . . Clamp holder

(351). . . Arrival department

(352). . . perforation

(A). . . Screw assembly

Claims (1)

The injection molding machine mold base structure is mainly provided with a movable mold base and a fixed mold base in the injection molding machine, and a clamping unit provided with a diagonal inclination is respectively arranged around the four end turns of the corresponding ends of the two mold bases for use To respectively assemble the male and female molds, the clamping unit includes:
a circular hole, which is a hole which is obliquely penetrated from the end surface of the side wall of the die holder;
a through hole, a slot that communicates with the end face of the die holder corresponding to the circular hole, and the through hole has a stop section to the sidewall of the die holder;
a circular guide block is correspondingly placed in the circular hole, and the displacement can be adjusted in the circular hole, and the circular guide block is provided with a screw hole;
a bolt corresponding to the screw hole of the circular guide block, and the bolt correspondingly passes through the through hole;
A clamping seat is provided with an abutting portion and a perforation corresponding to the bolt for locking and the abutting portion corresponding to the pressing and positioning mold.