CN215619776U - External injection mold with mold closing control - Google Patents

Abstract

The utility model relates to an external injection mold with mold closing control, which comprises a female mold assembly, a male mold assembly, an ejector plate assembly and a mold closing control assembly, wherein the male mold assembly comprises a push plate, a male mold base plate, mold feet and a lower fixing plate which are sequentially arranged, the ejector plate assembly is provided with an ejector rod and an ejector column, the ejector rod is used for ejecting a product in a cavity, the ejector column is used for ejecting the push plate synchronously, the mold closing control assembly comprises a stroke positioning plate, a piston fixing seat and a positioning piston, the lower end of the piston fixing seat is fixed on the outer side of the male mold base plate, the positioning piston is arranged at the upper end of the piston fixing seat, the stroke positioning plate is fixed on the push plate, and the positioning piston can be clamped into the stroke positioning plate to position the push plate. The mold closing control assembly is arranged on the outer side of the mold, so that the structure of the mold is simplified, the mold opening and closing operation is convenient, and the practicability is very high.

Description

External injection mold with mold closing control

Technical Field

The utility model relates to an injection mold, in particular to an external injection mold with mold closing control.

Background

As is well known, an injection mold is a common mold for molding plastic products, and plastic products with various forms can be molded by the injection mold to meet various needs of people. Due to the requirement of special structure of products, some products need to be processed by using a three-plate die, and the opening and closing sequence of the three-plate die needs to be controlled. And the mold closing control assembly is often installed in the mold in the prior art, so that the manufacturing cost of the mold is increased, and the operation difficulty of the mold is also improved.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects, the utility model provides the external injection mold with the mold closing control, the mold closing control assembly is arranged in the mold, and the mold closing control assembly is arranged on the outer side of the mold, so that the structure of the mold is simplified, the mold opening and closing operation is convenient, and the practicability is very high.

The technical scheme adopted by the utility model for solving the technical problem is as follows:

an injection mold with an external mold closing control comprises a female mold assembly, a male mold assembly, an ejector pin plate assembly and an external mold closing control assembly, the female die assembly is detachably covered on the male die assembly, the ejector pin plate assembly is movably arranged in the male die assembly, the male die component comprises a push plate, a male die base plate, a die foot and a lower fixing plate which are arranged in sequence, the ejector plate component is provided with an ejector rod and an ejector column, the ejector rod is used for ejecting the product in the cavity, the ejection column is used for ejecting the push plate synchronously, the die assembly control assembly comprises a stroke positioning plate, a piston fixing seat and a positioning piston, the lower end of the piston fixing seat is fixed on the outer side of the male die base plate, the positioning piston is arranged at the upper end of the piston fixing seat, the stroke positioning plate is fixed on the push plate, and the positioning piston can be clamped into the stroke positioning plate to position the push plate.

Preferably, the female die assembly comprises an upper fixing plate and a female die plate which are fixedly connected, the ejector plate assembly comprises an upper ejector plate and a lower ejector plate which are fixedly connected, the ejector plate assembly is movably arranged between the male die base plate and the lower fixing plate, the die pins are located on two sides of the ejector plate assembly, and the ejection posts are attached to the ejector plate during die assembly.

Preferably, the mold closing control assembly further comprises a spring and a piston pressing plate, the piston pressing plate is fixed on the piston fixing seat, and the spring is installed between the positioning piston and the piston pressing plate.

Preferably, the stroke positioning plate is fixedly installed on the outer side of the push plate, and two positioning grooves which are arranged in parallel are arranged on the stroke positioning plate and are arranged along the same vertical direction of the stroke positioning plate.

Preferably, the piston fixing seat is provided with a mounting groove, the positioning piston is provided with a piston head and a mounting hole, the positioning piston is mounted in the mounting groove, the spring is mounted in the mounting hole, and when the spring is in a natural state, the piston head extends into the positioning groove of the stroke positioning plate.

Preferably, be equipped with the spout in the push pedal, the upper end fixed connection a setting element of fore-set, the setting element can slide in the spout, and is equipped with the boss on this setting element, when ejector plate subassembly operation to the below, the boss of setting element can laminate in the bottom surface of spout.

The utility model has the beneficial effects that: the die closing control assembly comprises a stroke positioning plate, a piston fixing seat, a positioning piston, a spring and a piston pressing plate, wherein the piston pressing plate is fixed on the piston fixing seat; in the demoulding process, the product is directly demoulded by utilizing the action of the push plate, so that the demoulding quality of the product is improved; this practicality is installed the compound die control subassembly in the outside of mould, has simplified the structure of mould, and die sinking and compound die convenient operation, has the practicality very much.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural diagram of a mold clamping control assembly according to the present invention;

FIG. 3 is a second schematic structural diagram of the mold clamping control assembly of the present invention;

FIG. 4 is a third schematic structural diagram of a mold clamping control assembly according to the present invention;

FIG. 5 is a cross-sectional view taken along A-A of FIG. 4;

FIG. 6 is an exploded view of the modular control assembly of the present invention;

FIG. 7 is a diagram illustrating a mold opening process according to the present invention;

FIG. 8 is a second drawing illustrating the mold opening process of the present invention;

FIG. 9 is a third drawing illustrating the mold opening process of the present invention;

in the figure: 10-female die assembly, 11-upper fixing plate, 12-female die plate, 20-male die assembly, 21-push plate, 22-male die plate, 23-male die backing plate, 24-die leg, 25-lower fixing plate, 26-sliding chute, 30-ejector pin plate assembly, 31-upper ejector pin plate, 32-lower ejector pin plate, 33-ejector pin, 34-ejector pin, 35-product, 36-positioning piece, 40-die closing control assembly, 41-stroke positioning plate, 411-positioning groove, 42-piston fixing seat, 421-mounting groove, 43-positioning piston, 431-piston head, 432-mounting hole, 44-spring, 45-piston pressing plate and 46-mounting screw.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

Example (b): as shown in fig. 1-9, an external injection mold with mold-closing control comprises a female mold assembly 10, a male mold assembly 20, an ejector plate assembly 30 and a mold-closing control assembly 40, wherein the female mold assembly 10 is detachably covered on the male mold assembly 20, the ejector plate assembly 30 is movably disposed in the male mold assembly 20, the male mold assembly 20 comprises a push plate 21, a male mold plate 22, a male mold backing plate 23, mold feet 24 and a lower fixing plate 25, the ejector plate assembly 30 is provided with an ejector rod 33 and an ejector column 34, the ejector rod 33 is used for ejecting a product 35 in a mold cavity, the ejector column 34 is used for synchronously ejecting the push plate 21, the mold-closing control assembly 40 comprises a stroke positioning plate 41, a piston fixing seat 42 and a positioning piston 43, the lower end of the piston fixing seat 42 is fixed on the outer side of the male mold backing plate 23, the positioning piston 43 is mounted on the upper end of the piston fixing seat, the stroke positioning plate 41 is fixed to the push plate 21, and the positioning piston 43 can be inserted into the stroke positioning plate 41 to position the push plate 21.

When the die is closed, a die cavity for forming a product is formed between the female die assembly and the male die assembly, the ejector plate assembly is attached to the lower fixing plate 25, the push plate 21, the male die plate 22 and the male die backing plate 23 are sequentially attached, the positioning piston 43 is clamped into the stroke positioning plate 41, after the product is formed, the female die assembly 10 moves upwards to leave the male die assembly, the ejector plate assembly 30 is ejected upwards under the action of external force, the push plate 21 synchronously moves upwards under the action of the ejection column 34, the positioning piston 43 retracts into the piston fixing seat 42, the product is separated from the die cavity under the action of the push plate and the ejection rod 33, the operation is stopped after the ejector plate assembly 30 operates for a certain stroke, and at the moment, the positioning piston 43 is ejected again to be clamped into the stroke positioning plate 41 to position the push plate 21; then the ejector plate assembly 30 returns to the original position, the ejector rods return to the original position synchronously, and the ejector plate 21 is fixed under the action of the positioning piston 43, so that the product is separated from the ejector rods, and the product demoulding process is completed. The mold closing control assembly is arranged on the outer side of the mold, so that the structure of the mold is simplified, the mold opening and closing operation is convenient, and the practicability is very high.

As shown in fig. 1, the female mold assembly 10 includes an upper fixing plate 11 and a female mold plate 12 which are fixedly connected, the ejector plate assembly 30 includes an upper ejector plate 31 and a lower ejector plate 32 which are fixedly connected, the ejector plate assembly 30 is movably installed between the male mold backing plate 23 and the lower fixing plate 25, the mold legs 24 are located at two sides of the ejector plate assembly 30, and the ejector columns 34 are attached to the ejector plate 21 when the mold is closed. The die is sequentially provided with an upper fixing plate 11, a female die plate 12, a push plate 21, a male die plate 22, a male die backing plate 23, die feet 24 and a lower fixing plate 25 from top to bottom, the joint surface of the female die plate 12 and the push plate 21 is PL1, the joint surface of the push plate 21 and the male die plate 22 is PL2, when the die is opened, PL1 is opened firstly, and PL2 is opened later, when the die is closed, under the control of the mould clamping control assembly 40, PL1 closes first, PL2 closes later, the lower ends of the top pillar 34 and the top rod 33 are fixed in the ejector plate assembly 30, the upper end of the ejector pin acts on the product 35 in the cavity, the upper end of the ejector column 34 passes through the male die backing plate 23 and the male die plate 22 to abut against the push plate 21, therefore, when the ejector plate assembly ascends, the ejector columns 34 synchronously move against the push plate 21, when the ejector plate assembly is closed, the ejector plate assembly returns, the push plate 21 is limited and fixed by the piston of the closing control assembly 40, and at the moment, the ejector columns 34 leave the push plate 21.

As shown in fig. 1, the push plate 21 is provided with a sliding groove 26, the upper end of the ejection pin 34 is fixedly connected with a positioning member 36, the positioning member 36 can slide in the sliding groove 26, and the positioning member 36 is provided with a boss, so that when the ejector pin plate assembly 30 moves to the lowest position, the boss of the positioning member 36 can be attached to the bottom surface of the sliding groove 26. After the ejector pins withdraw the product from the cavity, the ejector pin plate assembly 30 returns, i.e. the ejector pin plate assembly moves to the lower fixing plate 25, the ejector plate 21 is fixed under the action of the mold closing control assembly 40, and the boss of the positioning member 36 is attached to the bottom surface of the chute.

As shown in fig. 2 to 6, the mold clamping control assembly 40 further includes a spring 44 and a piston pressing plate 45, the piston pressing plate 45 is fixed on the piston fixing seat 42, and the spring 44 is installed between the positioning piston 43 and the piston pressing plate 45. The stroke positioning plate 41 is fixedly installed at the outer side of the push plate 21, two positioning slots 411 which are arranged in parallel are arranged on the stroke positioning plate 41, and the two positioning slots 411 are arranged along the same vertical direction of the stroke positioning plate 41.

The piston fixing seat 42 is provided with a mounting groove 421, the positioning piston 43 is provided with a piston head 431 and a mounting hole 432, the positioning piston 43 is mounted in the mounting groove 421, the spring 44 is mounted in the mounting hole 432, and when the spring is in a natural state, the piston head 431 extends into the positioning groove 411 of the stroke positioning plate 41.

The stroke positioning plate 41 is a thin plate with a rectangular parallelepiped structure, four corner ends of the stroke positioning plate 41 are fixed on the push plate 21 through mounting screws 46, two positioning grooves 411 are vertically arranged and opened towards the outer side of the stroke positioning plate 41, the piston pressing plate 45 is fixed on the piston fixing seat 42 through the mounting screws 46, the lower end of the piston fixing seat 42 is fixed on the male die backing plate 23 through the mounting screws 46, as shown in fig. 1, the distance between the central points of the two positioning grooves of the stroke positioning plate is S1, which is the stroke of the push plate 21, when the mold is completely closed, the positioning piston 43 extends into the positioning groove 411 above, when the mold is opened, the ejector plate assembly 30 moves upwards, the push plate 21 synchronously moves upwards along with the ejector plate assembly under the action of the ejector column 34, the positioning piston 43 compresses the spring 44, the piston head 431 retracts into the mounting groove 421, and stops moving until the ejector plate assembly moves to the male die backing plate 23, at this time, the push plate 21 moves for a distance of S1, the positioning groove 211 below the stroke positioning plate 41 moves to the positioning piston, and the positioning piston 43 extends into the positioning groove 211 under the action of the restoring force of the spring to position the push plate 21.

The operation process of the utility model is as follows: the method comprises the following steps:

the method comprises the following steps: as shown in fig. 7, after the product 35 is molded, the female mold assembly 10 moves upward and away from the male mold assembly 20, and the positioning piston 43 extends into the positioning slot 411 above the stroke positioning plate;

step two: as shown in fig. 8, the ejector plate assembly 30 moves upwards, the ejector plate 21 synchronously moves upwards along with the ejector plate assembly under the action of the ejector columns 34, the positioning piston 43 compresses the spring 44, the piston head 431 retracts into the mounting groove 421 until the ejector plate assembly moves to the male die backing plate 23 and stops moving, at this time, the ejector plate 21 moves for the distance of S1, the positioning groove 411 below the stroke positioning plate 41 moves to the positioning piston, the positioning piston 43 extends into the positioning groove 411 under the action of the spring restoring force to position the ejector plate 21, and the product 35 is separated from the cavity under the action of the ejector plate 21 and the ejector rods 33;

step three: as shown in fig. 9, the ejector plate assembly 30 is reset, the ejector rods 33 are synchronously reset, the ejector plate assembly 30 moves downwards by the stroke of S1, and the push plate 21 is fixed under the action of the positioning piston 43, so that the products 35 are separated from the ejector rods 33, and the demolding process of the products is completed; finally, the master mold assembly 10 is closed, namely PL1 is closed, and the push plate 21 is reset under the action of the master mold assembly, namely PL2 is closed.

It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (6)

1. The utility model provides an external injection mold of compound die control which characterized in that: the die assembly comprises a female die assembly (10), a male die assembly (20), an ejector plate assembly (30) and a die assembly control assembly (40), wherein the female die assembly (10) is detachably covered on the male die assembly (20), the ejector plate assembly (30) is movably arranged in the male die assembly (20), the male die assembly (20) comprises a push plate (21), a male die plate (22), a male die backing plate (23), a die pin (24) and a lower fixing plate (25) which are sequentially arranged, an ejector rod (33) and an ejector column (34) are arranged on the ejector plate assembly (30), the ejector rod (33) is used for ejecting a product (35) in a die cavity, the ejector column (34) is used for synchronously ejecting the push plate (21), the die assembly control assembly (40) comprises a stroke positioning plate (41), a piston fixing seat (42) and a positioning piston (43), the lower end of the piston fixing seat (42) is fixed on the outer side of the male die backing plate (23), the positioning piston (43) is arranged at the upper end of the piston fixing seat, the stroke positioning plate (41) is fixed on the push plate (21), and the positioning piston (43) can be clamped into the stroke positioning plate (41) to position the push plate (21).

2. The external injection mold with mold closing control as claimed in claim 1, wherein: the female die assembly (10) comprises an upper fixing plate (11) and a female die plate (12) which are fixedly connected, the ejector pin plate assembly (30) comprises an upper ejector pin plate (31) and a lower ejector pin plate (32) which are fixedly connected, the ejector pin plate assembly (30) is movably installed between the male die base plate (23) and the lower fixing plate (25), the die pins (24) are located on two sides of the ejector pin plate assembly (30), and the ejector columns (34) are attached to the ejector pins (21) during die assembly.

3. The external injection mold with mold closing control as claimed in claim 1, wherein: the mold closing control assembly (40) further comprises a spring (44) and a piston pressing plate (45), the piston pressing plate (45) is fixed on the piston fixing seat (42), and the spring (44) is installed between the positioning piston (43) and the piston pressing plate (45).

4. The external injection mold with mold closing control as claimed in claim 3, wherein: the stroke positioning plate (41) is fixedly arranged on the outer side of the push plate (21), two positioning grooves (411) which are arranged in parallel are formed in the stroke positioning plate (41), and the two positioning grooves (411) are arranged along the same vertical direction of the stroke positioning plate (41).

5. The external injection mold with mold closing control as claimed in claim 4, wherein: be equipped with mounting groove (421) on piston fixing base (42), location piston (43) are equipped with piston head (431) and mounting hole (432), location piston (43) install in mounting groove (421), spring (44) install in mounting hole (432), when the spring is in natural state, piston head (431) stretch into in the constant head tank (411) of stroke location board (41).

6. The external injection mold with mold closing control as claimed in claim 1, wherein: be equipped with spout (26) on push pedal (21), the upper end fixed connection a setting element (36) of fore-set (34), setting element (36) can slide in spout (26), and is equipped with the boss on this setting element (36), when ejector plate subassembly (30) move to the below, the boss of setting element (36) can laminate in the bottom surface of spout (26).

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