CN211194329U

CN211194329U - Die set

Info

Publication number: CN211194329U
Application number: CN201921897657.7U
Authority: CN
Inventors: 周浪
Original assignee: Suzhou Yu'anjun Precision Technology Co ltd
Current assignee: Suzhou Yu'anjun Precision Technology Co ltd
Priority date: 2019-11-06
Filing date: 2019-11-06
Publication date: 2020-08-07
Anticipated expiration: 2029-11-06

Abstract

The utility model discloses a mold, include: the movable membrane component also comprises an ejection unit and a movable mould core; the movable mould core is provided with a bulge. The fixed die assembly comprises a fixed die base plate, a fixed die plate and a fixed die core, and a first groove and a second groove are further formed in the fixed die core. The utility model discloses an optimize the runner design, be provided with the arch on the fixed die plate, be provided with the second recess on movable mould benevolence, under the combined action of arch and second recess, the material of moulding plastics flows into the shaping die cavity gently, has overcome because of the inhomogeneous shaping back warpage rate that leads to of the material of moulding plastics distributes and can not satisfy the defect of requirement. Finally, the product is good in injection molding and free of defects; the test and subsequent sintering process verify that the flatness tolerance and appearance requirement of the finished product both meet and exceed the requirements of the drawing.

Description

Die set

Technical Field

The utility model relates to a mould field belongs to a dull and stereotyped forming die of pottery.

Background

In the prior art, when a product is formed by a ceramic flat plate, the traditional die is difficult to feed uniformly, the thickness of a sintered finished product is uneven, the warpage rate is high, the product cannot meet the requirement of a design drawing, and the reject ratio of the product is high.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a mould can produce the ceramic flat board.

In order to achieve the above purpose, the utility model provides a following technical scheme:

a mold, comprising:

the fixed die assembly comprises a fixed die base plate, a fixed die plate and a fixed die core; the fixed die assembly comprises a fixed die plate, a fixed die core and a fixed die plate, wherein the fixed die plate is arranged at the center of the fixed die plate, the fixed die assembly is provided with a positioning ring penetrating through the fixed die plate, the fixed die assembly also comprises a sprue channel which penetrates through the fixed die plate and the fixed die core and is in butt joint with the positioning ring, and a fixed die groove part which is sunken from one side of the fixed die plate to the inside of the fixed die plate;

the movable mould assembly comprises a movable mould base plate, cushion blocks correspondingly and vertically arranged on two sides of the movable mould base plate, a movable mould plate fixedly connected with the movable mould base plate and the cushion blocks, a movable mould core and a movable mould core, wherein the two cushion blocks, the movable mould base plate and the movable mould plate jointly enclose an accommodating space, the movable mould plate is provided with a movable mould groove part which is recessed towards the inside of the movable mould plate from one side of the movable mould plate, the movable mould core is accommodated in the movable mould groove part, the movable mould assembly further comprises an ejection unit accommodated in the accommodating space, and the surface of the movable mould core facing the fixed mould core is provided with a second groove for accommodating the sprue runner and a first groove connected with the second groove; wherein the projection is accommodated in a side of the first groove close to the second groove, the movable core is accommodated in the first groove, and an upper surface of the movable core is lower than an end surface of the first groove;

the movable mold core, the fixed mold core, the sprue runner and the movable mold core form a forming cavity of the ceramic flat plate together;

the guide assembly comprises a guide pillar fixed on the fixed die base plate and a guide sleeve sleeved on the guide pillar.

Further, the second groove comprises a triangular groove connected with the sprue channel and a rectangular groove connected with the triangular groove.

Furthermore, the movable die assembly further comprises a support rod fixed on the movable die base plate, and the support rod is arranged in the accommodating space.

Further, the ejection unit comprises an ejector pin push plate close to the movable mould base plate, a push plate fixing plate fixedly connected with the ejector pin push plate and an ejector pin penetrating through the push plate fixing plate and arranged towards the fixed mould component.

Furthermore, the ejector pins comprise first ejector pins and second ejector pins, the upper ends of the first ejector pins are connected with the sprue runner and arranged below the sprue runner, and the upper ends of the second ejector pins are arranged below the movable mold core.

Further, ejecting unit still includes the reset unit, the reset unit includes the release link and overlaps and establish spring on the release link.

Further, a cooling mechanism is arranged on the fixed die core and/or the movable die core.

Further, the cooling mechanism horizontally penetrates through the fixed die core and/or the movable die core.

Further, the die is further provided with a fixing assembly for fixing the fixed die assembly and the movable die assembly so that the fixed die assembly and the movable die assembly are mutually closed.

The beneficial effects of the utility model reside in that: through optimizing the runner, be provided with the arch on the fixed die plate, be provided with the second recess on movable mould benevolence, under the combined action of arch and second recess, the material of moulding plastics flows into the shaping die cavity gently, has overcome because of the inhomogeneous warpage rate can not satisfy the defect of requirement after the shaping that leads to of material distribution. Finally, the product is good in injection molding and free of defects; the test and subsequent sintering process verify that the flatness tolerance and appearance requirement of the finished product both meet and exceed the requirements of the drawing.

The above description is only an overview of the technical solution of the present invention, and in order to make the technical means of the present invention clearer and can be implemented according to the content of the description, the following detailed description is made with reference to the preferred embodiments of the present invention and accompanying drawings.

Drawings

Fig. 1 is an overall schematic view of the present invention.

Fig. 2 is a first perspective view of the present invention.

Fig. 3 is the structural schematic diagram of the fixed mold core of the present invention.

Fig. 4 is a schematic view of the movable mold insert of the present invention.

FIG. 5 is a schematic view showing the combination of the first pin, the second pin, the moving mold core, the ceramic plate, and the stub bar.

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

The utility model discloses a mould, this mould are used for producing a dull and stereotyped product 52 of pottery, and this dull and stereotyped 52 of pottery is the rectangle, and the material evenly distributed of injection moulding process is controlled through fan-shaped feeding during this product of shaping, consequently can produce stub bar 51, specifically as shown in FIG. 1.

As shown in fig. 2 to 5, the mold includes: the fixed die assembly 1, the movable die assembly 2 and the guide assembly.

The fixed die assembly 1 comprises a fixed die base plate 101, a fixed die plate 102 and a fixed die core 5; the fixed mold assembly 1 further comprises a sprue channel which penetrates through the fixed mold base plate 102 and the fixed mold core 5 and is in butt joint with the positioning ring 3, and a fixed mold groove part (not shown) which is recessed from one side of the fixed mold plate 102 to the inside of the fixed mold plate 102, the fixed mold core 5 is accommodated in the fixed mold groove part, and a protrusion 105 is arranged on one side, facing the movable mold assembly 2, of the fixed mold core 5;

the movable mold component 2 comprises a movable mold base plate 201, cushion blocks 202 correspondingly and vertically arranged on two sides of the movable mold base plate 201, cushion blocks 203 fixedly connected with the movable mold base plate 201 and the cushion blocks 202, a movable mold core 6 and a movable mold core 53, wherein the two cushion blocks 202, the movable mold base plate 201 and the cushion blocks 203 together enclose a containing space, the cushion blocks 203 are recessed into movable mold groove portions (not shown) from one sides of the cushion blocks 203 to the inside of the cushion blocks 203, the movable mold core 6 is contained in the movable mold groove portions, the movable mold component 2 further comprises an ejection unit contained in the containing space, and two grooves 602 used for containing sprue runners and first grooves 601 connected with the two grooves 602 are arranged on the surface of the movable mold core 6 facing; wherein the projection 105 is accommodated in the second groove 602 on the side close to the first groove 601, the movable core 53 is accommodated in the first groove 601, and the upper surface of the movable core 53 is lower than the end surface of the first groove 601;

the movable mould core 6, the fixed mould core 5, the sprue runner and the movable mould core 53 form a forming cavity of the ceramic flat plate 52 together;

the guide assembly comprises a guide post 18 fixed on the fixed die base plate 101 and a guide sleeve 17 sleeved on the guide post 18.

The utility model discloses having optimized the runner, being provided with protruding 105 on fixed die plate 102, being provided with second recess 602 on movable mould benevolence 6, under the combined action of protruding 105 and second recess 602, the material of moulding plastics flows into the shaping die cavity gently, has overcome because of the inhomogeneous dull and stereotyped 52 warpage rate of pottery after the material distributes and can not satisfy the defect of requirement. Finally, the ceramic flat plate 52 is well formed and free of defects; the test and subsequent sintering process verify that the flatness tolerance and appearance requirement of the finished product both meet and exceed the requirements of the drawing.

Specifically, the second groove 602 ends in a fan shape extending from a point to the periphery.

More closely, the fan-shaped end of the second groove 602 extends rearward to form a rectangular buffer area.

The movable mold assembly 2 further comprises four support rods 23 accommodated in the accommodating space and fixed on the movable mold base plate 201, and the support rods 23 are used for supporting the movable mold plate 102 and preventing the movable mold plate 102 from deforming.

Further, the ejection unit includes a push plate 204 disposed close to the movable mold base plate 201, a push plate fixing plate 205 fixedly connected to the push plate 204, and a push pin penetrating through the push plate fixing plate 205 and disposed toward the fixed mold assembly 1. An ejector rod (not shown) is arranged on the injection molding machine, an ejector rod through hole (not shown) matched with the ejector rod is arranged on the movable mold base plate 201, the ejector rod penetrates through the ejector rod through hole and is abutted against the ejector pin push plate 204, and therefore when the injection molding machine pushes the ejector rod, the ejector rod is pushed and sequentially pushes the ejector pin push plate 204 and the push plate fixing plate 205 to move together along the movement direction of the ejector rod. The ejector plate retainer plate 205 and the ejector plate 204 also cooperate to retain one end of the ejector pin so that the ejector pin can be pushed by the ejector rod to move toward the fixed mold assembly 1. The ejector pins are matched with the injection-molded ceramic flat plate 52, and the ceramic flat plate 52 can be ejected out of the movable mold core 6 after the mold is opened.

The ejecting unit further comprises a reset unit 15, and the reset unit 15 comprises a reset rod 152 and a spring 151 sleeved on the reset rod 152. The number of the reset rods 152 and the number of the springs 151 are four, and the four reset rods and the springs are uniformly distributed on four corners of the push plate fixing plate 205. One end of the reset rod 152 is limited between the push plate fixing plate 205 and the thimble push plate 204, the other end of the reset rod can freely penetrate through the cushion block 203 to abut against the fixed die plate 102, and the reset rod 152 is arranged around the thimble, so that the reset rod 152 can guide the push plate fixing plate 205, the thimble push plate 204 and the thimble, and the thimble is prevented from moving obliquely and being damaged. The reset lever 152 may assist in pushing the stationary platen 102 as the ejector pins push product. One part of the spring 151 goes deep into the cushion block 203 to limit the position of the spring relative to the cushion block 203, the other part of the spring protrudes out of the cushion block 203, and the protruding part abuts against the push plate fixing plate 205. When the mold is opened, the ejector pins are pushed out by ejector rods of the injection molding machine, the product is taken out, the ejector rods return, the ejector units can be reset through the elastic force of the springs 151, and the mold is closed. However, when the spring 151 fails to work or the reset fails due to external reasons, and the mold is closed at the moment, the reset rod 152 can directly abut against the fixed mold plate 102, so that the ejector pin is prevented from directly receiving the acting force of closing the mold, and the ejector pin is protected from being damaged.

The ejection unit comprises a first ejector pin 55 and a second ejector pin 54, the upper end of the first ejector pin 55 is connected with the sprue channel, and the ejection unit is arranged below the sprue channel and used for ejecting the stub bar 51; the second ejector pin 54 has an upper end disposed below the movable core 53 for ejecting the movable core 53 and the ceramic flat plate 52.

The problems that in the prior art, the heat dissipation effect of the partial molding surface of a molding cavity is poor, the molding is slow, and the processing period is long are solved. The fixed die core 5 and the movable die core 6 are provided with cooling mechanisms 106; the cooling mechanism 106 can also be arranged on the fixed mold core 5 or the movable mold core 6; specifically, the cooling mechanism 106 horizontally penetrates the movable mold core 6 and the fixed mold core 5, and can uniformly cool the movable mold core 6 and the fixed mold core 5. In the present embodiment, the cooling mechanism 106 is disposed on the fixed mold core 5 and the movable mold core 6, and in other embodiments, the cooling mechanism 106 may be disposed on only one of the movable mold core 6 or the fixed mold core 5.

When this mould need put in storage, can fix through fixed subassembly 4 fixed cover half subassembly 1 with movable mould subassembly 2 for both are closed each other, can avoid the inside original paper of mould to receive the damage when guaranteeing the assembly precision.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A mold, comprising:

the fixed die assembly comprises a fixed die base plate, a fixed die plate and a fixed die core; the fixed die assembly comprises a fixed die plate, a fixed die core and a fixed die plate seat plate, wherein the fixed die plate seat plate is arranged at the center of the fixed die plate seat plate and is provided with a positioning ring penetrating through the fixed die plate seat plate, the fixed die assembly also comprises a sprue channel which penetrates through the fixed die plate and the fixed die core and is in butt joint with the positioning ring, and a fixed die groove part which is sunken from one side of the fixed die plate to the inside of the fixed die plate, the fixed die core is accommodated in the fixed;

2. A mold as in claim 1, wherein: the second groove comprises a triangular groove connected with the sprue runner and a rectangular groove connected with the triangular groove.

3. A mold as in claim 1, wherein: the movable mould component also comprises a support rod fixed on the movable mould seat plate, and the support rod is arranged in the accommodating space.

4. A mold as in claim 1, wherein: the ejection unit comprises an ejector pin push plate close to the moving die base plate, an ejector plate fixing plate fixedly connected with the ejector pin push plate and an ejector pin penetrating through the ejector plate fixing plate and arranged towards the fixed die assembly.

5. A mold in accordance with claim 4 wherein: the ejector pins comprise first ejector pins and second ejector pins, the upper ends of the first ejector pins are connected with the sprue runner and arranged below the sprue runner, and the upper ends of the second ejector pins are arranged below the movable mold core.

6. A mold as in claim 1, wherein: the ejection unit further comprises a reset unit, and the reset unit comprises a reset rod and a spring sleeved on the reset rod.

7. A mold as in claim 1, wherein: and the fixed die core and/or the movable die core are/is provided with a cooling mechanism.

8. A mold in accordance with claim 7, wherein: the cooling mechanism horizontally penetrates through the fixed die core and/or the movable die core.

9. A mold as in claim 1, wherein: the die is also provided with a fixing assembly for fixing the fixed die assembly and the movable die assembly so that the fixed die assembly and the movable die assembly are mutually closed.