CN107415182B

CN107415182B - Die set

Info

Publication number: CN107415182B
Application number: CN201710412300.4A
Authority: CN
Inventors: 何智安; 赖纪峰; 吴云豪
Original assignee: Guangdong Evenwin Precision Technology Co Ltd
Current assignee: Tianjin Aodena Technology Co ltd
Priority date: 2017-06-02
Filing date: 2017-06-02
Publication date: 2020-01-10
Anticipated expiration: 2037-06-02
Also published as: CN107415182A

Abstract

The invention relates to a die. A mold, comprising: the device comprises a first pressing plate, a second pressing plate, a third pressing plate, a line position column, a line position slide block, an elastic piece, an elastic rubber plug and an elastic rubber sleeve; when the die is closed, the elastic piece is pressed tightly, the elastic rubber sleeve is sleeved with the elastic rubber plug to clamp the second pressing plate and the third pressing plate, and the elastic rubber sleeve can slide in a direction close to the second pressing plate along a first direction; when the die is opened, the elastic part is stretched, the elastic rubber sleeve is separated from the elastic rubber plug, and the elastic rubber sleeve can slide along the first direction to the direction close to the second pressing plate. When the structure is used for closing the die, the second pressing plate and the third pressing plate are closed firstly, and when the die is opened, the first pressing plate and the second pressing plate are opened firstly, so that the film pressing phenomenon caused by blank overflow or line position deviation is avoided.

Description

Die set

Technical Field

The invention relates to the technical field of injection molding equipment, in particular to a mold.

Background

In injection molding equipment, line lamination often occurs due to overflow of the blank from the cavity or deviation of the slide line. In the three-plate mold, the mold cavity is firstly closed and then the slide is carried out by controlling the sequence of mold closing and mold opening, so that the slide film pressing phenomenon can be reduced. At present, a spring is generally adopted to control the sequence of mold closing and mold opening in a three-plate mold, however, the spring has poor control stability, and the sequence of mold closing and mold opening is difficult to ensure in the mold operation, so that the film pressing phenomenon is caused.

Disclosure of Invention

Therefore, it is necessary to provide a mold for solving the problem of poor stability of the operation of mold closing and mold opening sequences by using a spring.

A mold, comprising:

a first platen;

the line position column comprises a column body and an inclined pin positioned at one end of the column body, and one end of the column body, which is far away from the inclined pin, is fixedly connected with one side of the first pressing plate;

the second pressing plate is positioned on one side, provided with the line position column, of the first pressing plate, can slide in a direction close to or far away from the first pressing plate along a first direction, is provided with a through hole, and a column body of the line position column can slidably penetrate through the through hole;

the slide block is arranged on the second pressure plate in a sliding manner and is provided with a matching hole corresponding to the taper pin;

the third pressing plate is positioned on one side, far away from the first pressing plate, of the second pressing plate, and can slide towards the direction close to or far away from the second pressing plate along the first direction;

the elastic piece is positioned between the first pressing plate and the second pressing plate and is connected with at least one of the first pressing plate and the second pressing plate, and the elastic piece can push the second pressing plate to move in a direction far away from the first pressing plate along a first direction;

an elastic rubber plug; and

an elastic rubber sleeve;

one of the elastic rubber plug and the elastic rubber sleeve is positioned on one side of the third pressing plate close to the second pressing plate, and one end of the elastic rubber plug and the one end of the elastic rubber sleeve are fixedly connected with the third pressing plate; the other one of the elastic rubber plug and the elastic rubber sleeve is at least partially contained in the second pressing plate and can move towards or away from the second pressing plate along a first direction; the elastic rubber sleeve can be sleeved on the elastic rubber plug.

In one embodiment, the second pressing plate is provided with an accommodating cavity, and at least a part of one of the elastic rubber plug and the elastic rubber sleeve is accommodated in the accommodating cavity and can move towards or away from the second pressing plate along the first direction.

In one embodiment, the elastic rubber plug is positioned on one side of the third pressing plate close to the second pressing plate, and one end of the elastic rubber plug is fixedly connected with the third pressing plate; the elastic rubber sleeve is at least partially accommodated in the accommodating cavity and can move towards or away from the second pressing plate along a first direction; one side of the accommodating cavity, which is close to the third pressing plate, is provided with a blocking part, and the blocking part is used for limiting the sliding of the elastic rubber sleeve in the accommodating cavity.

In one embodiment, the elastic rubber plug is positioned on one side of the third pressing plate close to the second pressing plate, and one end of the elastic rubber plug is fixedly connected with the third pressing plate; the elastic rubber sleeve is at least partially accommodated in the accommodating cavity and can move towards or away from the second pressing plate along a first direction; the elastic rubber sleeve comprises a rubber sleeve body, a connecting rod and a limiting block, wherein one end of the connecting rod is connected with the rubber sleeve body, and the other end of the connecting rod, far away from the rubber sleeve body, is connected with the limiting block; the second pressing plate is provided with a through hole extending along a first direction, and the connecting rod penetrates through the through hole; the through hole is a stepped hole matched with the connecting rod and the limiting block.

In one embodiment, the elastic rubber sleeve is positioned on one side of the third pressing plate close to the second pressing plate, and one end of the elastic rubber sleeve is fixedly connected with the third pressing plate; the elastic rubber plug is at least partially accommodated in the accommodating cavity and can move towards or away from the second pressing plate along a first direction; the elastic rubber plug comprises a rubber plug body, a connecting rod and a limiting block, wherein one end of the connecting rod is connected with the rubber plug body, and the other end of the connecting rod, which is far away from the rubber plug body, is connected with the limiting block; the second pressing plate is provided with a through hole extending along a first direction, and the connecting rod penetrates through the through hole; the through hole is a stepped hole matched with the connecting rod and the limiting block.

In one embodiment, the mating hole has a first hole wall and a second hole wall opposite to and spaced apart from the first hole wall; a certain angle is formed between the first hole wall and the first direction and between the second hole wall and the first direction; when the second pressing plate is far away from the first pressing plate along the first direction, the slide column is abutted against the first hole wall, so that the slide block slides along the second direction; when the second pressing plate is close to the first pressing plate along the first direction, the line position column is abutted against the second hole wall, so that the line position slide block slides along the reverse direction of the second direction.

In one embodiment, the angle pin has a first surface and a second surface opposite and spaced from the first surface; when the second pressing plate is far away from the first pressing plate along the first direction, the first surface is abutted with the first hole wall, so that the slide block slides along a second direction; when the second pressing plate is close to the first pressing plate along the first direction, the second surface is abutted to the second hole wall, so that the slide block slides along the reverse direction of the second direction.

In one embodiment, the slide block further includes a sliding table, and an extending direction of the sliding table is the same as the second direction; the second pressing plate is provided with a guide groove, and the sliding table can be matched with the guide groove, so that the slide block can slide on the second pressing plate along the second direction.

In one embodiment, the device further comprises an outer guide pillar and an outer guide sleeve; one of the outer guide pillar and the outer guide sleeve is positioned on one side of the third pressure plate close to the second pressure plate and extends along the first direction towards the direction close to the second pressure plate; the other one of the outer guide pillar and the outer guide sleeve is positioned on one side of the second pressure plate close to the third pressure plate and extends along the first direction towards the direction close to the third pressure plate; the outer guide sleeve can be sleeved on the outer guide pillar.

In one embodiment, the pressing device further comprises a first limiting column and a second limiting column, wherein the first limiting column is arranged on one side, close to the third pressing plate, of the second pressing plate, and the second limiting column is arranged on one side, close to the second pressing plate, of the third pressing plate; the first limiting column can be abutted against the second limiting column to limit the relative movement of the third pressing plate and the second pressing plate.

In the die, the slide column is connected to the first pressing plate, the slide block is connected to the second pressing plate, an elastic piece is arranged between the first pressing plate and the second pressing plate, one of the elastic rubber plug and the elastic rubber sleeve is positioned on one side of the third pressing plate close to the second pressing plate, and one end of the elastic rubber plug and one end of the elastic rubber sleeve are fixedly connected with the third pressing plate; the other one of the elastic rubber plug and the elastic rubber sleeve is at least partially contained in the second pressing plate and can move towards the direction close to or away from the second pressing plate along the first direction; the elastic rubber sleeve can be sleeved on the elastic rubber plug. In the process of die assembly, when the third pressing plate is close to the second pressing plate along the first direction, the elastic rubber plug pushes the elastic rubber sleeve to move towards the direction close to the second pressing plate along the first direction, so that the second pressing plate and the third pressing plate are firstly covered, then the elastic piece is compressed under the action of external force, so that the second pressing plate and the first pressing plate are covered, and meanwhile, the opposite slide column moves along the first direction to drive the slide block to move to close the die cavity. In the die sinking process, because the second clamp plate and the third clamp plate are clamped by the elastic rubber sleeve and the elastic rubber plug, the elastic piece is changed from a compression state to a stretching state and pushes the second clamp plate and the third clamp plate to be far away from the first clamp plate along the first direction, and meanwhile, the relative slide column moves along the first direction to drive the slide block to move, and then the third clamp plate and the second clamp plate are separated by external force. The order of opening and closing between first clamp plate, second clamp plate and the third clamp plate of control mould that above-mentioned structure can be stable in die sinking and compound die in-process guarantees when the compound die, and the second clamp plate closes earlier with the third clamp plate, and when the die sinking, first clamp plate and second clamp plate open earlier to avoid overflowing because of the blank or the press mold phenomenon that the line position deviation caused.

Drawings

Fig. 1 is a schematic perspective view of a mold according to an embodiment in an open state;

FIG. 2 is a cross-sectional view of the mold shown in FIG. 1 taken along line II-II;

FIG. 3 is a schematic perspective view of the mold shown in FIG. 1 in a single position during closing;

FIG. 4 is a schematic perspective view of the mold shown in FIG. 1 in a position during mold opening;

fig. 5 is a schematic perspective view of the mold shown in body 1 in a closed state;

FIG. 6 is a schematic structural diagram of a slide block in the mold shown in FIG. 1;

fig. 7 is a schematic exploded perspective view of the elastic rubber plug and the elastic rubber sleeve in the mold shown in fig. 1.

Detailed Description

To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

The mold 100 of an embodiment is used in an injection molding apparatus for a product. Referring to fig. 1 and fig. 2, in the illustrated embodiment, the mold 100 is a three-plate mold, and the mold 100 includes a first pressing plate 110, a second pressing plate 120, a third pressing plate 130, a row position pillar 140, a row position slider 150, an elastic rubber plug 160, an elastic rubber sleeve 170, an elastic element 210, an outer guide pillar 180, and a position limiting pillar 190.

The first press plate 110 is typically fixed as a support to a frame (not shown). In the illustrated embodiment, the second platen 120 is coupled to the first platen 110, and the second platen 120 is capable of moving toward and away from the first platen 110 along a first direction. One surface of the second presser plate 120 close to the first presser plate 110 can abut against the first presser plate 110. In the illustrated embodiment, the first direction is a direction indicated by an X-axis, i.e., a vertical direction, and is also a mold opening and closing direction of the mold 100. Of course, in other embodiments, the direction indicated by the X axis may be a horizontal direction. In the process of closing the dies, the first platen 110 is fixed, and the second platen 120 moves along the first direction to the direction close to the first platen 110 until abutting against the first platen 110 under the action of external force; during the mold opening process, the first pressing plate 110 is also fixed, and the second pressing plate 120 moves along the first direction away from the first pressing plate 110 under the action of external force.

Referring further to fig. 5, in the illustrated embodiment, the second pressing plate 120 includes a plate body 121 and a sleeve 123 fixed on a side of the plate body 121 away from the first pressing plate 110. The sleeve 123 is formed with a receiving cavity 125. The end of the accommodating cavity 125 far away from the plate body 121 is open. In one embodiment, the sleeve 123 includes a sleeve body (not shown) and a connecting bolt (not shown). Threaded holes are formed in the second pressing plate 120 and the sleeve body, and the connecting bolts can be matched with the threaded holes to enable the sleeve 123 to be fixedly connected with the second pressing plate 120. Of course, in other embodiments, the sleeve 123 may be integrally formed with the plate body 121; the sleeve 123 may also be glued to the plate body 121. The sleeve 123 may be omitted, and when the sleeve 123 is omitted, the receiving cavity 125 is directly formed on the plate body 121.

In the illustrated embodiment, an elastic member 210 is disposed between the first and second

pressing plates

110 and 120. In the illustrated embodiment, the resilient member 210 is a cylindrical spring. One end of the elastic member 210 is connected to the first pressing plate 110, and the other end of the elastic member 210 is connected to the second pressing plate 120. Of course, in other embodiments, the elastic member 210 may be connected to one of the first and second

pressing plates

110 and 120. The elastic member 210 can push the second pressing plate 120 to move in a direction away from the first pressing plate 110 along the first direction.

In the illustrated embodiment, the row index post 140 includes a post 141 and a tilt pin 143 at one end of the post 141. One end of the cylinder 141 away from the inclined pin 143 is fixedly connected to one side of the first pressing plate 110. The second pressing plate 120 is provided with a first through hole, and the cylinder 141 of the slide column 140 slidably penetrates through the first through hole, so that the second pressing plate can slide along the first direction to a direction close to or far away from the first pressing plate 110.

In the illustrated embodiment, the column 141 has a substantially elongated plate shape. One end of the cylinder 141 is fixedly coupled to the first presser plate 110 and extends in a first direction toward a direction close to the third presser plate 130. In the illustrated embodiment, the number of row-bit columns 140 is 4; the 4 row-bit pillars 140 enclose a square structure. Of course, in other embodiments, the number of row pillars 140 may be any other number not less than 1.

In the illustrated embodiment, the post 141 is integrally formed with the angle pin 143 to facilitate machining of the travel post 140. In the illustrated embodiment, the extending direction of the angle pin 143 forms an angle with the extending direction of the column 141. The angle pin 143 has opposing first (not shown) and second (not shown) surfaces. In the illustrated embodiment, the first surface is disposed parallel to the second surface.

The slide block 150 is slidably disposed on the second platen 120 and has a fitting hole 151 corresponding to the taper pin 143. The slide 150 is movable in a second direction, which in the illustrated embodiment is the direction indicated by the Y-axis, i.e., the horizontal direction. Of course, in other embodiments, the direction shown by the Y-axis may be a vertical direction. In one embodiment, the slide 150 is used for forming a through hole on a product, that is, after the mold 100 is closed, the slide 150 forms a desired through hole on the product during the injection molding process; when the mold is opened, the slide block 150 is withdrawn from the through hole, so that the injection molded product can be smoothly separated from the cavity of the mold 100.

Referring further to fig. 6, in the illustrated embodiment, the angle pin 143 of the travel post 140 can be slidably connected to the travel slider 150 through the mating hole 151. In the illustrated embodiment, the mating hole 151 has a first hole wall 152 and a second hole wall 153 spaced apart from and facing the first hole wall 152. The first hole wall 152 and the second hole wall 153 are disposed in parallel. In the illustrated embodiment, the first aperture wall 152 is angled in a first direction and the second aperture wall 153 is angled in a first direction. When the second pressing plate 120 moves away from the first pressing plate 110 along the first direction, the first surface of the inclined pin 143 abuts against the first hole wall 152, so that the slide block 150 slides along the second direction, that is, the slide block 150 slides away from the cavity and is pulled out of the cavity. When the second pressing plate 120 approaches the first pressing plate 110 along the first direction, the second surface of the inclined pin 143 abuts against the second hole wall 153, so that the slide block 150 slides along the direction opposite to the second direction, that is, the slide block 150 slides close to the cavity to close the cavity.

In the illustrated embodiment, the slide block 150 is further provided with a slide table 155. The extending direction of the slide table 155 is the same as the second direction. Correspondingly, a guide groove (not shown) is formed in the second pressing plate 120, and the sliding table 155 can be matched with the guide groove in the second pressing plate 120, so that the slide block 150 can slide on the second pressing plate 120 along the second direction.

The third platen 130 is located on a side of the second platen 120 remote from the first platen 110. The third presser plate 130 is slidable in the first direction toward or away from the second presser plate 120. One surface of the second presser plate 120 close to the third presser plate 130 can abut against the third presser plate 130. During clamping, the third platen 130 can approach the second platen 120 along the first direction until abutting the second platen 120; during mold opening, the third platen 130 can be moved away from the second platen 120 in a first direction. The first pressing plate 110, the second pressing plate 120 and the third pressing plate 130 together define a cavity (not shown) of the mold 100, and the cavity can be used for injection molding of a product. In the injection molding apparatus, a slide rail (not shown) extending in a first direction is provided, and the first platen 110, the second platen 120, and the third platen 130 are all provided on the slide rail and can slide in the first direction.

Referring to fig. 2 and 7, the elastic rubber plug 160 is located on one side of the third pressing plate 130 close to the second pressing plate 120, and one end of the elastic rubber plug is fixedly connected to the third pressing plate 130. In the illustrated embodiment, the elastic rubber plug 160 includes a plug body (not shown) and a fixed end (not shown). The rubber plug body and the fixed end are both cylindrical. In one embodiment, the outer wall of the fixed end is provided with a thread, a corresponding threaded hole is formed in the third pressing plate 130, and the elastic rubber plug 160 is fixed on the third pressing plate 130 by the thread on the fixed end matching with the threaded hole on the third pressing plate 130.

In the illustrated embodiment, the elastic rubber sleeve 170 includes a rubber sleeve body 171, a connecting rod 173, and a stopper 175. The rubber cover body 171 is cylindrical. One end of the rubber sleeve body 171 is provided with a blind hole (not shown), and the rubber plug body of the elastic rubber plug 160 can be accommodated in the blind hole, so that the elastic rubber sleeve 170 can be sleeved with the elastic rubber plug 160. In the illustrated embodiment, the rubber sleeve body 171 is disposed coaxially with the elastic rubber plug 160, and the axial direction is the same as the first direction, i.e. the direction of opening and closing the mold. The elastic rubber sleeve 170 can be sleeved on the elastic rubber plug 160 and can move along the first direction to a direction close to or away from the second pressing plate 120, so that the elastic rubber sleeve 170 is sleeved on or separated from the elastic rubber plug 160. When the mold is closed, the elastic rubber sleeve 170 is completely sleeved with the elastic rubber plug 160, and the elastic rubber plug 160 and the elastic rubber sleeve 170 are in a compressed state. In the illustrated embodiment, the grommet body 171 is at least partially received in the second platen 120. Specifically, the rubber sleeve body 171 is at least partially accommodated in the accommodating cavity 125 and can move along the first direction toward or away from the second pressing plate 120. In the illustrated embodiment, a side of the receiving cavity 125 close to the third pressing plate 130 is provided with a stopper (not shown) for limiting the sliding of the elastic rubber sleeve 170 in the receiving cavity 125. Specifically, the stopper is used to limit the movement of the elastic rubber sleeve 170 in the accommodating cavity 125 along the first direction toward a direction away from the second pressing plate 120. Of course, in other embodiments, the stop portion may be omitted.

One end of the connecting rod 173 is connected to the rubber sleeve body 171, and one end of the connecting rod 173 away from the rubber sleeve body 171 is connected to the limiting block 175. In one embodiment, a thread is disposed at one end of the connecting rod 173, a threaded hole is disposed at one end of the rubber sleeve body 171 away from the elastic rubber plug 160, and the connecting rod 173 and the rubber sleeve body 171 are fixedly connected by screwing the thread and the threaded hole. In the illustrated embodiment, the connecting rod 173 and the stop block 175 are both cylindrical. The diameter of the stopper 175 is larger than that of the connecting rod 173. The second pressing plate 120 is provided with a through hole (not shown) extending along the first direction, and the connecting rod 173 is inserted into the through hole. In the illustrated embodiment, the through hole is a stepped hole that cooperates with the connecting rod 173 and the stopper 175.

Of course, in other embodiments, the elastic rubber sleeve 170 is located on one side of the third pressing plate 130 close to the second pressing plate 120, and one end of the elastic rubber sleeve is fixedly connected to the third pressing plate 130. The corresponding elastic rubber plug 160 is at least partially received in the receiving cavity 125 and can move along the first direction toward or away from the second pressing plate 120. The elastic rubber plug 160 includes a rubber plug body (not shown), a connecting rod and a limiting block. One end of the connecting rod is connected with the rubber plug body, and the end of the connecting rod, far away from the rubber plug body, is connected with the limiting block. The second pressing plate is provided with a through hole extending along the first direction, and the connecting rod penetrates through the through hole. The through hole is a stepped hole matched with the connecting rod and the limiting block.

The outer guide post 180 is cylindrical. In the illustrated embodiment, the outer guide post 180 is positioned on a side of the third presser plate 130 adjacent to the second presser plate 120 and is fixedly coupled thereto. The outer guide post 180 extends in a first direction toward a direction close to the second presser plate 120. In one embodiment, the end of the outer guide post 180 remote from the third presser plate 130 is provided with a boss.

The outer guide sleeve is cylindrical. In the illustrated embodiment, the outer guide is fixedly connected to the second pressing plate 120 on a side thereof adjacent to the third pressing plate 130, and extends along the first direction toward the third pressing plate 130. The outer guide sleeve can be sleeved on the outer guide post 180, plays a role in guiding in the processes of die assembly and die opening, and positions of the second pressing plate 120 and the third pressing plate 130 are positioned at the same time, so that a cavity of the second pressing plate 120 can be aligned with a cavity of the third pressing plate 130. In one embodiment, the opening of the outer guide sleeve is countersunk. The boss on the outer guide pillar 180 can be matched with the counter bore-shaped structure on the outer guide sleeve, so that the alignment is more accurate.

Of course, in other embodiments, the outer guide post 180 may be positioned on one side of the second pressing plate 120 close to the third pressing plate 130 and fixedly connected thereto; correspondingly, the outer guide sleeve is positioned on one side of the third pressing plate 130 close to the second pressing plate 120 and is fixedly connected.

In the illustrated embodiment, the mold 100 further includes a restraint post 190. The position-limiting posts 190 include a first position-limiting post (not shown) and a second position-limiting post (not shown). The first limiting column is arranged on one surface of the second pressing plate 120 close to the third pressing plate 130, and the second limiting column is arranged on one surface of the third pressing plate 130 close to the second pressing plate 120; the first position-limiting pillar can abut against the second position-limiting pillar to limit the relative movement of the third pressing plate 130 and the second pressing plate 120.

Referring to fig. 2 to 5, in the mold opening state, the first pressing plate 110 is separated from the second pressing plate 120, the elastic member 210 is stretched, and the second pressing plate 120 is separated from the third pressing plate 130; the elastic rubber sleeve 170 is separated from the elastic rubber plug 160, and the elastic rubber sleeve 170 can slide along the first direction toward the direction close to the second pressing plate 120.

Please further refer to fig. 3. In the process of closing the mold, under the action of external force, the third pressing plate 130 is close to the second pressing plate 120 along the first direction, one end of the elastic rubber plug 160, which is far away from the third pressing plate 130, abuts against one end of the elastic rubber sleeve 170, which is close to the third pressing plate 130, the elastic rubber plug 160 pushes the elastic rubber sleeve 170 to move in the accommodating cavity 125 along the first direction towards the direction close to the second pressing plate 120, in the process, one end of the elastic rubber plug 160, which is far away from the third pressing plate 130, and one end of the elastic rubber sleeve 170, which is far away from the second pressing plate 120, are always in the mutually abutted state, the first pressing plate 110 is fixed to the second pressing plate 120, and the third pressing plate 130 is firstly covered with the second pressing. At this time, one end of the connecting rod 173 on the elastic rubber sleeve 170, which is away from the elastic rubber plug 160, protrudes out of one surface of the second pressing plate 120, which is away from the third pressing plate 130, and the limiting block 175 abuts against one surface of the first pressing plate 110, which is close to the second pressing plate 120.

When the external force continues to act, the second pressing plate 120 and the third pressing plate 130 are pushed to move towards the direction close to the first pressing plate 110 along the first direction at the same time. In this process, the elastic rubber plug 160 enters the blind hole of the elastic rubber sleeve 170 along the first direction, so that the elastic rubber plug 160 is completely sleeved with the elastic rubber sleeve 170; the second presser plate 120 compresses the elastic member 210 to a compressed state. Meanwhile, the inclined pin 143 of the slide column 140 enters the matching hole 151 of the slide block 150, and pushes the slide block 150 to move along the second direction, so as to close the cavity. Fig. 5 is a schematic structural view of the mold 100 in a mold clamping completion state.

In the clamped state, the first platen 110 and the second platen 120 are in contact with each other, and the elastic member 210 is compressed. The second pressing plate 120 and the third pressing plate 130 are also in an abutting state; the elastic rubber sleeve 170 is completely sleeved with the elastic rubber plug 160, the elastic rubber sleeve 170 and the elastic rubber plug 160 are in a compression state, so that the second pressing plate 120 is clamped with the third pressing plate 130, and the elastic rubber sleeve 170 can slide along the first direction towards the direction close to the second pressing plate 120.

Referring further to fig. 4, during the mold opening process, the elastic member 210 separates from the first pressing plate 110 by pushing the second pressing plate 120 upward by releasing the elastic force. Since the elastic rubber sleeve 170 and the elastic rubber plug 160 are in a compressed state to clamp the second pressing plate 120 and the third pressing plate 130, the second pressing plate 120 and the third pressing plate 130 are still in a closed state and are far away from the first pressing plate 110 along the first direction. In this process, the latch 143 of the travel post 140 is disengaged from the engagement hole 151 of the travel block 150 and pushes the travel block 150 to move in the reverse direction of the second direction, thereby being extracted from the product.

And then under the action of external force, the third pressing plate 130 is pulled to separate from the second pressing plate 120, at this time, the elastic rubber plug 160 is separated from the elastic rubber sleeve 170 under the pulling of external force until the mold opening state is returned.

In the mold 100, the slide column 140 is connected to the first pressing plate 110, the slide block 150 is connected to the second pressing plate 120, the elastic member 210 is arranged between the first pressing plate 110 and the second pressing plate 120, one of the elastic rubber plug 160 and the elastic rubber sleeve 170 is located on one side of the third pressing plate 130 close to the second pressing plate 120, and one end of the elastic rubber plug is fixedly connected to the third pressing plate 130; the other one of the elastic rubber plug 160 and the elastic rubber sleeve 170 is at least partially accommodated in the second pressing plate 120 and can move towards or away from the second pressing plate 120 along the first direction; the elastic rubber sleeve 170 can be sleeved on the elastic rubber plug 160. In the process of closing the mold, when the third pressing plate 130 is close to the second pressing plate 120 along the first direction, the elastic rubber plug 160 pushes the elastic rubber sleeve 170 to move in the accommodating cavity of the sleeve along the first direction towards the direction close to the second pressing plate 120, so that the second pressing plate 120 and the third pressing plate 130 are firstly closed, then the elastic member is compressed under the action of external force, so that the second pressing plate 120 and the first pressing plate 110 are closed, and meanwhile, the slide column 140 is driven to move along the first direction, and the slide block 150 is driven to move to close the cavity. In the mold opening process, the elastic rubber sleeve 170 is sleeved with the elastic rubber plug 160 to clamp the second pressing plate 120 and the third pressing plate 130, the elastic element 210 is changed from a compression state to a tension state and pushes the second pressing plate 120 and the third pressing plate 130 to be away from the first pressing plate 110 along the first direction, and simultaneously, the elastic element moves relative to the line position column 110 along the first direction to drive the line position slider 150 to move, and then the third pressing plate 130 is separated from the second pressing plate 120 through external force. The structure can stably control the opening and closing sequence among the first pressing plate 110, the second pressing plate 120 and the third pressing plate 130 in the mold opening and closing process of the mold, so that the second pressing plate 120 and the third pressing plate 130 are firstly closed when the mold is closed, and the first pressing plate 110 and the second pressing plate 120 are firstly opened when the mold is opened, thereby avoiding the film pressing phenomenon caused by blank overflow or slide deviation.

In other embodiments, the outer guide post 180, the outer guide sleeve, and the limit post 190 may be omitted.

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 express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. 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

1. A mold, comprising:

a first platen;

an elastic rubber plug; and

an elastic rubber sleeve;

the elastic rubber sleeve can be sleeved with the elastic rubber plug;

the second pressing plate is provided with an accommodating cavity, the elastic rubber plug is positioned on one side of the third pressing plate close to the second pressing plate, and one end of the elastic rubber plug is fixedly connected with the third pressing plate; the elastic rubber sleeve is at least partially accommodated in the accommodating cavity and can move towards or away from the second pressing plate along a first direction; the elastic rubber sleeve comprises a rubber sleeve body, a connecting rod and a limiting block, wherein one end of the connecting rod is connected with the rubber sleeve body, and the other end of the connecting rod, far away from the rubber sleeve body, is connected with the limiting block; the second pressing plate is provided with a through hole extending along a first direction, and the connecting rod penetrates through the through hole; the through hole is a stepped hole matched with the connecting rod and the limiting block;

the matching hole is provided with a first hole wall and a second hole wall which is opposite to the first hole wall and is arranged at intervals; a certain angle is formed between the first hole wall and the first direction and between the second hole wall and the first direction; when the second pressing plate is far away from the first pressing plate along the first direction, the slide column is abutted against the first hole wall, so that the slide block slides along the second direction; when the second pressing plate is close to the first pressing plate along the first direction, the line position column is abutted against the second hole wall, so that the line position slide block slides along the reverse direction of the second direction;

the angle pin is provided with a first surface and a second surface which is opposite to the first surface and is arranged at a distance; when the second pressing plate is far away from the first pressing plate along the first direction, the first surface is abutted with the first hole wall, so that the slide block slides along a second direction; when the second pressing plate is close to the first pressing plate along the first direction, the second surface is abutted with the second hole wall, so that the slide block slides along the reverse direction of the second direction;

the slide block also comprises a sliding table, and the extension direction of the sliding table is the same as the second direction; a guide groove is formed in the second pressing plate, and the sliding table can be matched with the guide groove so that the slide block can slide on the second pressing plate along the second direction;

when the third pressing plate is close to the second pressing plate along the first direction during die assembly, the elastic rubber plug pushes the elastic rubber sleeve to move towards the direction close to the second pressing plate along the first direction, so that the second pressing plate and the third pressing plate are firstly covered, then the elastic part is compressed under the action of external force, so that the second pressing plate and the first pressing plate are covered, and meanwhile, the elastic rubber plug moves along the first direction relative to the slide column to drive the slide block to move to close the die cavity; when the die is opened, the elastic rubber sleeve is sleeved with the elastic rubber plug to enable the second pressing plate to be clamped with the third pressing plate, the elastic piece is changed from a compression state to a stretching state and pushes the second pressing plate and the third pressing plate to be away from the first pressing plate along the first direction, meanwhile, the elastic piece moves relative to the slide column along the first direction to drive the slide block to move, and then the third pressing plate is separated from the second pressing plate through external force.

2. A mold, comprising:

a first platen;

an elastic rubber plug; and

an elastic rubber sleeve;

the elastic rubber sleeve can be sleeved with the elastic rubber plug;

the second pressing plate is provided with an accommodating cavity, the elastic rubber sleeve is positioned on one side of the third pressing plate close to the second pressing plate, and one end of the elastic rubber sleeve is fixedly connected with the third pressing plate; the elastic rubber plug is at least partially accommodated in the accommodating cavity and can move towards or away from the second pressing plate along a first direction; the elastic rubber plug comprises a rubber plug body, a connecting rod and a limiting block, wherein one end of the connecting rod is connected with the rubber plug body, and the other end of the connecting rod, which is far away from the rubber plug body, is connected with the limiting block; the second pressing plate is provided with a through hole extending along a first direction, and the connecting rod penetrates through the through hole; the through hole is a stepped hole matched with the connecting rod and the limiting block;

3. The mold according to claim 1, wherein a stop portion is disposed at a side of the receiving cavity close to the third pressing plate, and the stop portion is configured to limit sliding of the elastic rubber sleeve in the receiving cavity.

4. The mold according to claim 1 or 2, further comprising an outer guide post and an outer guide sleeve; one of the outer guide pillar and the outer guide sleeve is positioned on one side of the third pressure plate close to the second pressure plate and extends along the first direction towards the direction close to the second pressure plate; the other one of the outer guide pillar and the outer guide sleeve is positioned on one side of the second pressure plate close to the third pressure plate and extends along the first direction towards the direction close to the third pressure plate; the outer guide sleeve can be sleeved on the outer guide pillar.

5. The mold according to claim 1 or 2, further comprising a first position-limiting post and a second position-limiting post, wherein the first position-limiting post is disposed on one side of the second pressing plate close to the third pressing plate, and the second position-limiting post is disposed on one side of the third pressing plate close to the second pressing plate; the first limiting column can be abutted against the second limiting column to limit the relative movement of the third pressing plate and the second pressing plate.