KR20200118263A - Manufacturing device for sealring member - Google Patents

Abstract

The present invention relates to a sealing member manufacturing apparatus that can significantly improve productivity by extracting a large amount of sealing members per press, and also can efficiently utilize raw materials by preventing waste of raw materials by minimizing residues discarded after injection.

Description

Sealing member manufacturing device {Manufacturing device for sealing member}

The present invention relates to a sealing member manufacturing apparatus, and more particularly, a sealing member manufacturing apparatus capable of injecting a sealing member for maintaining airtightness, vacuum sealing, etc. to a heating mat, semiconductor, electronic, industrial equipment, various airtight containers, etc. It is about.

Sealing members are used in a wide field with names such as O-rings, gaskets, and packing, and there are various types of rubber, metals, synthetic resins, etc. as main materials to suit the purpose.

Sealing members mainly consist of ring-shaped ones, and the manufacturing of such a ring-shaped sealing member is usually a method of bonding the ends by rolling a stick-shaped injection product into a ring, or injecting a ring-shaped sealing member into a cylinder.

The method of manufacturing a stick-shaped injection product by rolling it into a ring shape can quickly mass-produce a stick-shaped injection product, but it is not efficient in terms of productivity because an additional process of joining the ends of the injection product is required.

For this reason, for the manufacture of a ring-shaped sealing member, a method of injecting a ring-shaped sealing member through a cylinder is mainly used, and FIG. 1A is a view schematically showing an apparatus for manufacturing such a sealing member.

As shown in FIG. 1A, the conventional sealing member manufacturing apparatus has a configuration including upper and lower molds 1 and 2 facing each other in which a ring-shaped mold groove 3 is formed, and upper and lower molds 1 and 2 are formed. ), the sealing member (S) is injection-molded by placing the raw material (M) between them and pressing the upper and lower molds (1, 2).

A ring-shaped sealing member (S) is extracted from the portion corresponding to the mold groove (3) of the raw material (M) compressed between the upper and lower molds (1, 2), except for the extracted sealing member (S). Injection residues (R1, R2) are generated in the part.

As shown in FIG. 1B, the injection residues R1 and R2 are the central injection residue R1 corresponding to the central portion of the ring-shaped sealing member S and the circumference generated along the outer circumference of the sealing member S. Since it is generated as an injection residue (R2), a relatively large amount of injection residue (R1, R2) is generated for each of the sealing members (S) to be injected. The efficiency was also poor.

In addition, when the upper mold (1) and the lower mold (2) are molded, the raw material is pushed to the clearance space between the upper mold (1) and the lower mold (2) around the mold groove (3), inevitably around the sealing member (S). Flash is generated on the screen.

If a flash is generated around the final injected sealing member (S), not only the marketability is deteriorated, but all these flashes must be neatly removed before delivery of the sealing member (S). All of these operations are relying on manual labor, so even productivity is remarkable. fell.

Registered Patent Publication No. 10-0736770

The present invention was created to solve the above problems in consideration of the problems of the prior art, and it is possible to extract a large amount of sealing members per press, thereby significantly improving productivity and minimizing the residue discarded after injection It is an object of the present invention to provide a sealing member manufacturing apparatus that can efficiently utilize raw materials by preventing wastage of materials, and that can secure the marketability and operation convenience of the finished product by suppressing the formation of flash.

The present invention is a means for achieving the above object, broken; A lower ship that rises and descends from the lower part of the upper ship toward the upper ship; And a core accommodated in one half of the upper and lower boxes and interposed between the upper and lower boxes when the upper and lower boxes are joined, and the core is provided on an inner side of the upper and lower boxes. It is characterized in that a plurality of unit cavities into which the injection raw materials on the sol heated by compression are introduced are repeatedly formed while spaced apart from each other by a predetermined distance.

In addition, when the upper and lower boxes are combined, each unit cavities of the upper and lower boxes facing each other are in communication with each other to form a closed ring.

In addition, each of the upper and lower boxes, the body of the shape of the enclosure; A guide pin installed across the inside of the body; A plurality of blades mounted to the outside of the guide pin along the length direction of the guide pin; And a mold panel mounted to the outside of the guide pin along the longitudinal direction of the guide pin, provided between adjacent blades, and forming the unit cavity by providing a step with the blade.

In addition, the width and thickness of the blade is characterized in that it is formed to be thinner than the width of the mold panel.

In addition, a frame supporting the upper box, forming a rail under the upper box, and having first lifting means for raising and lowering the core in front of the rail; A sliding plate supporting the lower box and sliding along the rail to a lower portion of the upper box; Sliding means for sliding the sliding plate forward and backward; And a second lifting means for lifting the sliding plate.

The present invention has the following effects.

First, when the upper and lower boxes are combined, the unit cavities of the upper and lower boxes that face each other communicate with each other to form a closed ring, and the raw material is pushed into the unit cavities that are communicated with each other in the form of a closed ring by the core. Since the sealing member in the form of a closing ring is formed, it is possible to prevent unnecessary waste of raw materials by not generating a central injection residue.

Second, since the unit cavities formed in the upper and lower boxes each take the form of slots, a large number can be secured within a limited space, and because the sealing member is ejected in a number corresponding to the number of unit cavities, As the sealing member can be manufactured in a large amount, the productivity is greatly improved.

1 is a view schematically showing a conventional sealing member manufacturing apparatus and a sealing member manufactured by the manufacturing apparatus.
2 is a view showing a schematic configuration of a sealing member manufacturing apparatus according to the present invention.
3 is a view showing one side of the sealing member manufacturing apparatus shown in FIG.
4 is a diagram schematically showing an exploded relationship between an upper ship, a core, and a lower ship.
5 is a view showing a partially cut-away state of the blade and the mold panel.
6 is a diagram schematically showing an exploded relationship between a blade and a mold panel.
7 is a diagram schematically showing the state of the upper and lower ships.
8 is a view showing an example in which an injection product is removed from the core.
9 is a diagram schematically showing a process of extracting a sealing member from an injection product.
10 to 15 are views for explaining a driving example of the sealing member manufacturing apparatus according to the present invention.

In order to fully understand the present invention, preferred embodiments of the present invention will be described with reference to the accompanying drawings. The embodiments of the present invention may be modified in various forms, and the scope of the present invention should not be construed as being limited to the embodiments described in detail below. This embodiment is provided to more completely explain the present invention to those with average knowledge in the art. Accordingly, the shape of the element in the drawings may be exaggerated to emphasize a clearer description. It should be noted that in each drawing, the same member may be indicated by the same reference numeral. Detailed descriptions of known functions and configurations that are determined to unnecessarily obscure the subject matter of the present invention will be omitted.

FIG. 2 is a view showing a schematic configuration of a sealing member manufacturing apparatus according to the present invention, and FIG. 3 is a view showing one side of the sealing member manufacturing apparatus shown in FIG. 2, and FIG. 4 is an exploded view of an upper box, a core, and a lower box. It is a diagram schematically showing the relationship, and FIG. 5 is a view showing a partially cut-away state of the blade and the mold panel, and FIG. 6 is a diagram schematically showing the disassembled relationship between the blade and the mold panel, and FIG. 7 is It is a view schematically showing a molded state, and FIG. 8 is a view showing an example in which an injection product is removed from the core. FIG. 9 is a view schematically showing a process of extracting a sealing member from the injection product, and FIGS. 10 to 15 are the present invention It is a view for explaining a driving example of the sealing member manufacturing apparatus according to.

The sealing member manufacturing apparatus according to the present invention comprises a large upper box 10 as shown in Figs. 2 to 3, a lower box 20 that rises and descends from the bottom of the upper box 10 toward the upper box 10, and the upper box When the (10) and the lower box (20) are molded, one half of the core is accommodated in the upper box 10 and the other half is accommodated in the lower box 20 to be interposed between the upper box 10 and the lower box 20 It can be defined as including (30).

The upper and lower boxes 10 and 20 are arranged symmetrical to each other in the same configuration and accommodate the core 30 at the center thereof.

A plurality of unit cavities 11 and 21 into which a sol-like injection material heated by pressing by the core 30 is introduced are repeatedly formed on the inner surfaces of the upper box 10 and the lower box 20 at a predetermined distance from each other. . At this time, the unit cavities 11 and 21 are formed in a slot shape, so that as many as possible can be formed in a limited space inside the box.

If the mold groove 3 formed in the upper mold 1 or the lower mold 2 is formed in a shape corresponding to the cross section of the sealing member S, as in the conventional sealing member manufacturing apparatus shown in FIG. 1A, the inner space of the mold is Since it occupies a relatively large amount, the number of sealing members (S) that can be injected per press is limited, so productivity is low.

On the other hand, as in the present invention, since the unit cavities 11 and 21 formed in the upper box 10 and the lower box 20 each have a slot shape, a large number can be secured within a limited space.

Since the raw material introduced into the unit cavities 11 and 21 is cured in a gel state and injected into the sealing member S, the sealing member S is injected in a number corresponding to the number of unit cavities 11 and 21 It is possible to manufacture a relatively large amount of sealing member (S) per press, it can be effective in terms of productivity improvement.

When the upper box 10 and the lower box 20 are molded, the unit cavities 11 and 21 facing each other of the upper box 10 and the lower box 20 communicate with each other to form a closed ring, and at this time, the core 30 The raw material is pushed into the unit cavities 11 and 21 communicated with each other in the form of a closing ring to form a sealing member S in the form of a closed ring corresponding to the unit cavities 11 and 21.

That is, as shown in FIG. 7, when the upper box 10 and the lower box 20 are joined in a state in which the core 30 is accommodated, between the inner surface of the upper box 10 and the lower box 20 and the outer peripheral surface of the core 30 The unit cavities 11 and 21 in the form of a closing ring are secured, and the raw material is introduced into the unit cavities 11 and 21 to form a sealing member S in the form of a closed ring.

The core 30 is formed in a form that can be in airtight contact with the inner side of the upper box 10 and the lower box 20, and has an empty pipe shape inside to open the upper box 10 and the lower box 20 Allows it to cool down quickly.

On the other hand, as an injection raw material for injecting the sealing member (S), a thermoplastic material such as rubber may be adopted, and although not shown, the upper box 10, the lower box 20, and the core 30 may be heated to heat these raw materials. Heating means may be provided.

The gel-like raw material disposed inside the upper box 10 and the lower box 20 is pressed and heated by the core 30 and the heating means during the molding process of the upper box 10 and the lower box 20 to give flowability. It is melted into the unit cavities 11 and 21, and when the pressing process is completed and the upper box 10 and the lower box 20 are separated, it is naturally hardened according to cooling and injected into the sealing member S.

As described above, since the configurations of the upper box 10 and the lower box 20 are the same, the configuration of the upper box 10 will be omitted, and only the configuration of the lower box 20 will be described with reference to the accompanying drawings.

As shown in Figs. 4 to 6, the lower box 20 is a body 22 having a shape of a body, a guide pin 23 installed across the interior of the body 22, and a longitudinal direction of the guide pin 23 A plurality of blades 24 mounted to the outside of the guide pin 23 along the guide pin 23 is mounted to the outside of the guide pin 23 along the longitudinal direction of the guide pin 23, but is provided between the adjacent blades 24 It may be defined as including a mold panel 25 forming the unit cavity 21 by placing the blade 24 and the step G.

First, the body 22 forms a predetermined space to accommodate the blade 24 and the mold panel 25 assembly inside. Assembly in which the guide pin 23, the blade 24, and the mold panel 25 are mutually coupled after disassembling the guide pin 23 from the inside of the body 22 when repairing the blade 24 and the mold panel 25 After removing the inside of the body 22, the blade 24 and the mold panel 25, which need replacement or repair, are replaced or repaired, and then installed in the body 22 again, maintenance can be simplified.

The blade 24 and the mold panel 25 may be formed of a plate-like member, and are alternately disposed along the length direction of the guide pin 23.

As shown in FIG. 5, the mold panel 25 disposed between the adjacent blades 24 forms a unit cavity 21 due to a step G with the blade 24, and the unit cavity 21 thus formed is A plurality of blades 24 and a plurality of mold panels 25 that are alternately arranged with each other are provided along the traveling direction.

That is, since the sealing member S is injected according to the number of formations of the unit cavities 21, a large amount of the sealing member S can be manufactured per press of the sealing member manufacturing apparatus.

The width (W1) of the blade (24) is formed to be thinner than the width (W2) of the mold panel (25), thereby securing as many as possible the number of mold panels (25) within the internal space of the limited body (22). To be able to do it.

And, as the width and thickness W1 of the blade 24 decreases, the sealing member S can be easily extracted from the injection product P.

When the sol-like raw material is completely cured, the upper box 10 and the lower box 20 are opened to obtain an injection product P. At this time, the injection product P is obtained while being surrounded by the outer surface of the core 30. That is, in order to extract the sealing member S as shown in FIG. 8, the injection product P surrounding the outer surface of the core 30 is removed from the core 30, and then the sealing member S is removed from the injection product P. It will be extracted.

In this case, a plurality of sealing members S are separately present in the injection product P, spaced apart from each other, and a flash is not formed around the sealing member S.

That is, when the width thickness (W1) of the blade 24 is thinner than the width thickness (W2) of the mold panel 25, as well as productivity improvement, the flash is not formed because the adjacent sealing member (S) is injected as much as possible. Therefore, it is possible to more easily extract the sealing member (S) from the injection product (P) and improve the marketability of the extracted sealing member (S). In addition, since the process of removing the flash from the sealing member S can be omitted as in the prior art, the manufacturing process can be simplified.

On the other hand, the upper box 10 and the lower box 20 have the above-described body 22, guide pin 23, blade 24, mold panel 25, etc. It is revealed that there may be an example of a mold in which the part corresponding to 21) is machined into a slot-shaped groove using a CNC or machining center.

The sealing member manufacturing apparatus according to the present invention is a first lifting means for supporting the upper box 10, forming a rail 41 under the upper box 10, and raising and lowering the core 30 in front of the rail 41 The frame 40 on which the 42 is provided, the sliding plate 50 supporting the lower box 20 and sliding to the lower part of the upper box 10 along the rail 41, the sliding plate 50 before and after It may further include a sliding means (not shown) for sliding in the direction and a second elevating means 60 (shown in FIG. 14) for elevating the sliding plate 50.

The frame 40 constitutes the overall skeleton of the sealing member manufacturing apparatus according to the present invention and supports the upper box 10, the sliding plate 50, the sliding means, the second lifting means 60, and the like.

The rail 41 is formed extending from the lower portion of the upper box 10 toward the front, and the sliding plate 50 has a configuration that reciprocates in the front and rear directions along the rail 41.

As the sliding plate 50 is reciprocated in the front and rear directions, the lower box 20 supported thereto can be approached directly below the upper box 10.

On the other hand, the core 30 is moved in the front and rear directions along the lower container 20 which reciprocates in the front and rear directions while seated in the inner space of the lower container 20.

The sliding means may be variously modified into known ones within a range capable of reciprocating the sliding plate 50 in the front and rear directions, such as an LM guide, and since the installation position is not particularly limited, a detailed description is omitted below. do.

The second lifting means 60 is responsible for raising the sliding plate 50 which has been moved directly below the upper box 10 in order to form the upper box 10 and the lower box 20. After the molding is completed, when the injection product P is sufficiently cooled, the sliding plate 50 is lowered so that the lower box 20 is returned directly below the upper box 10.

The second lifting means 60 may be made of an oil or pneumatic cylinder, and various changes may be made within a range capable of lifting the sliding plate 50.

That is, based on the upper box 10 fixed on the frame 40, the lower box 20 is sequentially moved relative to each other according to a control signal from a separate control unit.

The first lifting means 42 is for separating the core 30 from the lower box 20 by mounting the core 30 in the inner space of the lower box 20 or by raising the core 30 seated in the lower box 20, and It is preferable to be installed in front of (41).

The lifting of the core 30 may be performed manually by an operator in front of the rail 41, but since it is heated to a high temperature, it is preferable in terms of safety to be performed by a separate first lifting means 42.

The first lifting means 42 may include a gripping plate 42a for gripping both ends of the core 30 and an actuator 42b for lifting the gripping plate 42a up and down, and the actuator 42b is also described above. It is preferable that it is made of the same oil and pneumatic cylinders as the second lifting means 60.

When the core 30 is moved forward while seated on the lower box 20, the actuator 42b is operated to lift the core 30 to open the inner space of the lower box 20 or vice versa. It descends and is accommodated in the inner space of the lower box 20.

In summary, in the sealing member manufacturing apparatus according to the present invention, when the upper box 10 and the lower box 20 are molded, each unit cavities 11 and 21 facing each other of the upper box 10 and the lower box 20 are in the form of a closed ring. The raw material is pushed into the unit cavities 11 and 21 communicated with each other in the form of a closed ring by the core 30 to form a sealing member S in the form of a closing ring corresponding to the unit cavities 11 and 21. Since it is formed, the above-described central injection residue R1 is not generated, thereby preventing unnecessary waste of raw materials.

In addition, since the unit cavities 11 and 21 formed in the upper box 10 and the lower box 20 each have a slot shape, a large number can be secured within a limited space, and the number of unit cavities 11 and 21 Since the sealing member (S) is injected in a number corresponding to that, a relatively large amount of sealing member (S) can be manufactured per press, thereby providing an effect of greatly improving productivity.

Hereinafter, the operation of the present invention will be described. In this operation, a method of manufacturing the sealing member S will be described as an example based on the driving example of the sealing member manufacturing apparatus.

First, as shown in FIGS. 10 to 11, the sliding plate 50 is moved forward (left as referenced in FIG. 11 ). Then, the lower box 20 is also moved forward along the sliding plate 50 and disposed. At this time, the core 30 is in a state in which both ends are spaced apart from the upper portion of the lower box 20 while being supported by the gripping plate 42a.

Next, the gel-like first raw material M1 is put into the inner space of the lower box 20 and the gel-like second raw material M2 is seated on the upper surface of the core 30.

Next, as shown in FIG. 12, when the actuator 42b is compressed and the gripping plate 42a is lowered, the core 30 supported by the gripping plate 42a at both ends descends to the inner space of the lower box 20. Is stored.

Next, as shown in FIG. 13, by moving the sliding plate 50 to the rear, the lower box 20 containing the core 30 is moved directly below the upper box 10.

When the lower box 20 containing the core 30 is moved directly below the upper box 10, as shown in FIG. 14, the second lifting means 60 is driven to raise the sliding plate 50 to raise the upper box 10. ) And Haham (20).

When the upper box 10 and the lower box 20 are molded together, the first raw material M1 and the second raw material M2 are compressed and heated to melt into a sol and flow into each of the unit cavities 11 and 21.

After a certain period of time has elapsed, the cooled lower box 20 is returned to its original position in the front as shown in FIG. 15, and when both ends of the core 30 are located on the gripping plate 42a, the actuator 42b is elongated to extend the lower box 20 ) To raise the core 30. Then, after removing the injection product P from the core 30 through manual operation, the sealing member S is extracted from the injection product P as shown in FIG. 9.

On the other hand, in the driving example of the sealing member manufacturing apparatus, it is also possible to manufacture the sealing member by intervening manual work of an operator.

For example, sliding the sliding plate 50 in the front and rear directions without driving force such as the first lifting means 42 and the sliding means, or storing the core 30 in the lower box 20, or from the lower box 20 It is revealed that a simple process such as lifting and removing the core 30 can be performed manually by a worker for convenience, thereby increasing the efficiency of work.

The embodiments of the present invention described above are merely exemplary, and those of ordinary skill in the art to which the present invention pertains will appreciate that various modifications and other equivalent embodiments are possible. Therefore, it will be appreciated that the present invention is not limited to the form mentioned in the detailed description above. Therefore, the true technical protection scope of the present invention should be determined by the technical spirit of the appended claims. In addition, the present invention is to be understood as including the spirit of the present invention as defined by the appended claims and all modifications, equivalents and substitutes within the scope thereof.

10: upper limit 20: lower limit
30: core 40: frame

Claims (5)

Hurt;
A lower ship that rises and descends from the lower part of the upper ship toward the upper ship; And
When the upper and lower boxes are joined, one half of the core is accommodated in the upper and the other half is interposed between the upper and lower boxes, and includes,
A sealing member manufacturing apparatus, characterized in that a plurality of unit cavities into which the injection material in the sol form heated by pressing by the core is introduced are repeatedly formed on the inner surfaces of the upper and lower boxes, spaced apart from each other by a predetermined distance. The method according to claim 1,
When the upper and lower boxes are joined, the unit cavities of the upper and lower boxes facing each other are in communication with each other to form a closed ring. The method according to claim 1,
Each of the upper and lower boxes,
A housing-shaped body;
A guide pin installed across the inside of the body;
A plurality of blades mounted to the outside of the guide pin along the length direction of the guide pin; And
And a mold panel mounted to the outside of the guide pin along the lengthwise direction of the guide pin, provided between adjacent blades, and forming the unit cavity by providing a step between the blades and the blades. The method of claim 3,
The sealing member manufacturing apparatus, characterized in that the width and thickness of the blade is formed to be thinner than that of the mold panel. The method according to claim 1,
A frame supporting the upper box, forming a rail under the upper box, and having first lifting means for raising and lowering the core in front of the rail;
A sliding plate supporting the lower box and sliding along the rail to a lower portion of the upper box;
Sliding means for sliding the sliding plate forward and backward; And
The sealing member manufacturing apparatus further comprises a; second lifting means for lifting the sliding plate.

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