CN212707761U

CN212707761U - Injection molding machine mould

Info

Publication number: CN212707761U
Application number: CN202020944666.3U
Authority: CN
Inventors: 吴礼继
Original assignee: Huizhou Dewei Plastic Products Co ltd
Current assignee: Huizhou Dewei Plastic Products Co ltd
Priority date: 2020-05-29
Filing date: 2020-05-29
Publication date: 2021-03-16
Anticipated expiration: 2030-05-29

Abstract

The utility model relates to an injection molding machine die, which belongs to the field of injection molding machines and comprises a frame, wherein a female die and a male die which are mutually matched are arranged on the frame, the female die is fixedly arranged on the frame, the female die comprises a vertically arranged first binding surface, the male die is movably arranged on the guide rail, the male die comprises a second binding surface, a female die cavity is arranged on the first binding surface, one side of the female die, which is far away from the female die cavity, is provided with an injection molding opening, the second binding surface is provided with a male die cavity corresponding to the female die cavity, a cavity is arranged in the male die, a piston is movably arranged in the cavity, a connecting rod is fixedly arranged on the piston, and the connecting rod is close to the one end of convex mould and passes through delivery outlet and first binding face fixed connection, and the male mould is kept away from one side of second binding face and is offered the entry that is used for with the hydraulic pressure mechanism intercommunication, and the entry passes through the one end intercommunication that female mould was kept away from to passageway and cavity. The utility model discloses a cooling rate is fast, and machining efficiency is high.

Description

Injection molding machine mould

Technical Field

The utility model relates to an injection molding machine field, in particular to injection molding machine mould.

Background

An injection molding machine is also known as an injection molding machine or an injection machine. It is a main forming equipment for making various shaped plastic products from thermoplastic plastics or thermosetting plastics by using plastic forming mould. The device is divided into a vertical type, a horizontal type and a full-electric type. The injection molding machine can heat the plastic, apply high pressure to the molten plastic, and inject it to fill the mold cavity. After the mold cavity is filled with the molten plastic, the mold is opened to take out the molded plastic product after cooling molding, but the cooling takes a long time, which results in the reduction of production efficiency.

SUMMERY OF THE UTILITY MODEL

Therefore, it is necessary to provide an injection molding machine mold, which includes a frame, a female mold and a male mold are arranged on the frame, the female mold is fixedly arranged on the frame, the female mold includes a vertically arranged first attaching surface, the frame is further provided with a guide rail, the guide rail is arranged perpendicular to a plane where the first attaching surface is located, the male mold is movably arranged on the guide rail, the male mold includes a second attaching surface, the second attaching surface is arranged parallel to the first attaching surface, and the second attaching surface and the first attaching surface are located at the same horizontal height; a concave die cavity is formed in the first bonding surface, an injection port is formed in one side, away from the concave die cavity, of the concave die, and the injection port is communicated with the concave die cavity; the second binding surface is provided with a convex die cavity corresponding to the concave die cavity, and the convex die cavity is matched with the concave die cavity; a cylindrical cavity is horizontally arranged in the convex die, an output port is formed in the end face, close to one end of the concave die, of the cavity, a piston is movably arranged in the cavity, a connecting rod is fixedly arranged on the piston and horizontally arranged, one end, close to the convex die, of the connecting rod is fixedly connected with the first binding face through the output port, and the connecting rod and the output port are in sliding sealing fit; an inlet used for being communicated with a hydraulic mechanism is formed in one side, away from the second binding face, of the convex die, the inlet is communicated with one end, away from the concave die, of the cavity through a channel formed in the convex die, and the channel is arranged in the convex die in a bending mode.

The female die cavity and the male die cavity are matched, the male die moves to the female die on the guide rail, and the female die cavity and the male die cavity form a closed die cavity after the first attaching surface and the second attaching surface are attached together.

Before the injection molding of the utility model is carried out, the first attaching surface of the female die and the second attaching surface of the male die are attached together, and the female die cavity and the male die cavity form a closed die cavity; when the utility model is used for injection molding, firstly, the plastic in a molten state is conveyed into the cavity through the injection molding port and is filled with the cavity, then a hydraulic mechanism conveys hydraulic oil into the cavity through the inlet through the channel, wherein the channel is bent and arranged in the convex mold, particularly, the channel is arranged near the edge of the convex mold cavity along the convex mold cavity, and then the channel is turned back to the cavity to communicate with one end far away from the concave mold and the cavity; after hydraulic oil entered into the cavity, can make the piston in the cavity have the trend that drives the connecting rod and move towards the right side, and because the connecting rod is fixed on female mould, consequently corresponding terrace die utensil can move towards the direction of keeping away from female mould, thereby open the die cavity, can take out the plastic products this moment, then hydraulic pressure mechanism takes out the hydraulic oil in with the cavity via passageway and entry, the piston can have the trend that drives the connecting rod and move left because the effect of pressure intensity this moment, and because the connecting rod is fixed on female mould, consequently corresponding terrace die utensil can move towards the right side near the die utensil, until first binding face and the inseparable laminating of second binding face, can continue to mould plastics next this moment.

Wherein, the connecting rod can be in slidable sealing fit with the cavity through an oil seal.

Furthermore, an inserting block is arranged on the second binding surface, and the first binding surface corresponds to the inserting block and is provided with a jack matched with the inserting block.

The insert block is used for being aligned with the jack, and after the insert block is inserted into the jack, the female die cavity and the male die cavity on the first attaching surface and the second attaching surface can be accurately aligned and enclose the forming cavity, so that the precision of the die cavity is ensured; wherein, one end of the insertion block close to the insertion hole can be set to be a shrink-fit structure, such as a pyramid shape, so as to ensure that the insertion block can be smoothly inserted into the insertion hole.

Further, the channel passes through the insert block.

The channel passes through the insert block, so that when the hydraulic oil passes through the channel in the insert block, a part of heat in the female die can be taken away, and the cooling speed of the female die is accelerated.

Furthermore, the hydraulic mechanism including set up in first pneumatic cylinder in the frame, second pneumatic cylinder and with the total hydraulic hose of entry intercommunication, first pneumatic cylinder through first hydraulic hose with total hydraulic hose intercommunication, the second pneumatic cylinder through second hydraulic hose with total hydraulic hose intercommunication, first hydraulic hose with be provided with first hydraulic pump and hydraulic pump on the second hydraulic hose respectively.

The first hydraulic pump is used for inputting hydraulic oil in the first hydraulic cylinder into the cavity through the inlet and the passage, and the second hydraulic pump is used for pumping the hydraulic oil in the second cavity into the second hydraulic cylinder through the passage and the inlet so as to realize the back-and-forth movement of the male die; wherein, the hydraulic oil that enters into in the cavity is the lower hydraulic oil of temperature in the first pneumatic cylinder all the time, and the hydraulic oil taken out in the cavity all the time can be taken out the second pneumatic cylinder in, consequently can guarantee the utility model discloses a cooling performance.

In addition, a conveying pipe communicated with the first hydraulic cylinder and the second hydraulic cylinder can be arranged between the first hydraulic cylinder and the second hydraulic cylinder, and the conveying pipe is provided with a cooling device and a third hydraulic pump and is used for conveying hydraulic oil in the second hydraulic cylinder to the first hydraulic cylinder so as to ensure that hydraulic oil is always in the first hydraulic cylinder and the temperature of the hydraulic oil in the first hydraulic cylinder is always lower.

Furthermore, the first hydraulic cylinder and the second hydraulic cylinder are both provided with an inlet and an outlet.

The inlet and the outlet are used for performing oil changing operation on the first hydraulic cylinder and the second hydraulic cylinder.

Furthermore, the guide rail is rod-shaped, a linear bearing is movably arranged on the guide rail, the convex die is fixedly connected with the linear bearing through a connecting block, and the number of the guide rails is at least 2.

The arrangement of at least two guide rails can ensure that the male die can stably move along the guide rails.

The principle and effect of the present invention will be further explained below with reference to the above technical solutions and the accompanying drawings:

the utility model discloses a hydraulic oil promotes the opening and shutting of terrace die utensil reciprocating motion realization die cavity, and when hydraulic oil flows in the passageway, hydraulic oil can absorb the heat in the terrace die utensil, and the heat of die utensil can transmit the terrace die utensil through its contact surface with the terrace die utensil to can accelerate the cooling of the plastics product in the die cavity, compare in natural cooling, the utility model discloses a cooling rate is faster, consequently the utility model discloses a production efficiency is higher.

Drawings

Fig. 1 is a schematic sectional structural view of a mold of an injection molding machine according to an embodiment of the present invention;

fig. 2 is a schematic sectional structure view of a mold of an injection molding machine according to an embodiment of the present invention;

fig. 3 is a schematic sectional structure view three of the injection molding machine mold according to the embodiment of the present invention;

fig. 4 is a schematic sectional structure view of a mold of an injection molding machine according to an embodiment of the present invention;

fig. 5 is a schematic cross-sectional structure diagram of a plastic product according to an embodiment of the present invention;

fig. 6 is a schematic structural diagram of the hydraulic mechanism according to the embodiment of the present invention.

Description of reference numerals:

11-female die, 111-female die cavity, 112-injection port, 113-socket, 12-male die, 121-connecting block, 122-cavity, 1221-piston, 1222-connecting rod, 123-channel, 124-inlet, 125-male die cavity, 126-plug block, 2-guide rail, 21-linear bearing, 31-total hydraulic hose, 311-first hydraulic hose, 312-second hydraulic hose, 321-first hydraulic pump, 322-second hydraulic pump, 331-first hydraulic cylinder, 332-second hydraulic cylinder, 4-plastic product.

Detailed Description

To facilitate understanding of those skilled in the art, the present invention will be described in further detail with reference to the accompanying drawings and examples:

as shown in fig. 1, a mold for an injection molding machine includes a frame (not shown in the figure), a female mold 11 and a male mold 12 are disposed on the frame, the female mold 11 is fixedly disposed on the frame, the female mold 11 includes a first adhesion surface vertically disposed, a guide rail 2 is further disposed on the frame, the guide rail 2 is disposed perpendicular to a plane where the first adhesion surface is located, the male mold 12 is movably disposed on the guide rail 2, the male mold 12 includes a second adhesion surface, the second adhesion surface is disposed parallel to the first adhesion surface, and the second adhesion surface and the first adhesion surface are at the same horizontal height; the first bonding surface is provided with a cavity 111, one side of the cavity 11 away from the cavity 111 is provided with an injection port 112, and the injection port 112 is communicated with the cavity 111; the second abutting surface is provided with a convex die cavity 125 corresponding to the concave die cavity 111, and the convex die cavity 125 is matched with the concave die cavity 111; a cylindrical cavity 122 is further horizontally arranged in the male die 12, an output port is formed in an end face of the cavity 122 close to one end of the female die 11, a piston 1221 is movably arranged in the cavity 122, a connecting rod 1222 is fixedly arranged on the piston 1221, the connecting rod 1222 is horizontally arranged, one end of the connecting rod 1222 close to the male die 12 is fixedly connected with the first abutting surface through the output port, and the connecting rod 1222 is in slidable sealing fit with the output port; an inlet 124 used for being communicated with a hydraulic mechanism is formed in one side, far away from the second attaching surface, of the male die 12, the inlet 124 is communicated with one end, far away from the female die 11, of the cavity 122 through a channel 123 formed in the male die 12, and the channel 123 is arranged in the male die 12 in a bending mode.

The female die cavity 111 and the male die cavity 125 are arranged in a matching manner, the male die 12 moves to the female die 11 on the guide rail 2, and after the first attaching surface and the second attaching surface are attached together, the female die cavity 111 and the male die cavity 125 form a closed cavity.

Before the injection molding of the utility model is carried out, the first binding face of the female die 11 and the second binding face of the male die 12 are bound together, and the female die cavity 111 and the male die cavity 125 form a closed die cavity; when the utility model is used for injection molding, as shown in fig. 2, firstly, the plastic in the molten state is conveyed into the cavity through the injection port 112 and fills the cavity, the hydraulic machine then delivers hydraulic oil from the inlet 124 through the passage 123 into the cavity 122, wherein the channel 123 is arranged bent in the male mould 12, in particular along the edge of the male mould cavity 125 near the male mould cavity 125, and then turned back to the end of the cavity 122 remote from the female mold 11 to communicate with the cavity 122, while the hydraulic oil flows in the passage 123, the hydraulic oil can absorb the heat in the male die 12, the heat of the female die 11 can be transferred to the male die 12 through the contact surface of the female die and the male die 12, thereby, the cooling of the plastic product 4 in the cavity can be accelerated, as shown in fig. 5, the obtained molded plastic product 4 is accelerated, compared with natural cooling, the cooling speed of the utility model is faster, therefore, the production efficiency of the utility model is higher; after the hydraulic oil enters the cavity 122, as shown in fig. 3-4, the piston 1221 in the cavity 122 tends to move the connecting rod 1222 to the right, and because the connecting rod 1222 is fixed on the female mold 11, the male mold 12 correspondingly moves in a direction away from the female mold 11, so as to open the cavity, at this time, the plastic product 4 can be taken out, and then the hydraulic mechanism draws the hydraulic oil in the cavity 122 out through the channel 123 and the inlet 124, at this time, the piston 1221 tends to move the connecting rod 1222 to the left due to the pressure, and because the connecting rod 1222 is fixed on the female mold 11, the corresponding male mold 12 correspondingly moves to the right close to the female mold 11 until the first abutting surface and the second abutting surface are in close abutment, at this time, the next injection molding can be continued.

Wherein the connecting rod 1222 may be slidably and sealingly engaged with the cavity 122 via an oil seal.

Further, an inserting block 126 is arranged on the second attaching surface, and the first attaching surface is provided with a jack 113 matched with the inserting block 126 corresponding to the inserting block 126.

The insert block 126 is used for being aligned with the insertion hole 113, and after the insert block 126 is inserted into the insertion hole 113, the cavity 111 and the cavity 125 on the first attaching surface and the second attaching surface can be accurately aligned and enclose a molding cavity, so that the precision of the molding cavity is ensured; wherein, one end of the insertion block 126 near the insertion hole 113 may be provided with a shrink-fit structure, such as a pyramid shape, to ensure that the insertion block 126 can be smoothly inserted into the insertion hole 113.

Further, the channel 123 passes through the insert block 126.

The passage 123 passes through the insert 126, and the hydraulic oil can take away a part of the heat in the cavity 11 while passing through the passage 123 in the insert 126, thereby accelerating the cooling speed of the cavity 11.

Further, the hydraulic mechanism includes a first hydraulic cylinder 331, a second hydraulic cylinder 332 and a total hydraulic hose 31 communicated with the inlet 124, which are disposed on the frame, as shown in fig. 6, the first hydraulic cylinder 331 is communicated with the total hydraulic hose 31 through a first hydraulic hose 311, the second hydraulic cylinder 332 is communicated with the total hydraulic hose 31 through a second hydraulic hose 312, and a first hydraulic pump 321 and a hydraulic pump are disposed on the first hydraulic hose 311 and the second hydraulic hose 312, respectively.

The first hydraulic pump 321 is used for inputting the hydraulic oil in the first hydraulic cylinder 331 into the cavity 122 via the inlet 124 and the passage 123, and the second hydraulic pump 322 is used for pumping the hydraulic oil in the second cavity 122 into the second hydraulic cylinder 332 via the passage 123 and the inlet 124 so as to realize the back-and-forth movement of the male mold 12; wherein, the hydraulic oil that enters into in the cavity 122 is the lower hydraulic oil of temperature in the first pneumatic cylinder 331 all the time, and the hydraulic oil that is taken out in the cavity 122 all the time can be taken out in the second pneumatic cylinder 332, consequently can guarantee the utility model discloses a cooling performance.

In addition, a delivery pipe communicating the first hydraulic cylinder 331 and the second hydraulic cylinder 332 can be arranged between the first hydraulic cylinder 331 and the second hydraulic cylinder 332, and a cooling device and a third hydraulic pump are arranged on the delivery pipe and used for delivering the hydraulic oil in the second hydraulic cylinder 332 to the first hydraulic cylinder 331, so that the hydraulic oil is always in the first hydraulic cylinder 331, and the temperature of the hydraulic oil in the first hydraulic cylinder 331 is always low.

Further, the first hydraulic cylinder 331 and the second hydraulic cylinder 332 are provided with an inlet 124 and an outlet.

The inlet 124 and the outlet are used for oil change operations of the first hydraulic cylinder 331 and the second hydraulic cylinder 332.

Further, the guide rail 2 is rod-shaped, the linear bearing 21 is movably arranged on the guide rail 2, the convex die 12 is fixedly connected with the linear bearing 21 through a connecting block 121, and the number of the guide rails 2 is at least 2.

The arrangement of a minimum of two guide rails 2 ensures that the male molds 12 can move smoothly along the guide rails 2.

The above examples only represent some embodiments of the present invention, and the description thereof is more 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. The injection molding machine mold is characterized by comprising a rack, wherein a female mold and a male mold which are matched with each other are arranged on the rack, the female mold is fixedly arranged on the rack and comprises a vertically arranged first binding surface, a guide rail is further arranged on the rack and is perpendicular to a plane where the first binding surface is located, the male mold is movably arranged on the guide rail and comprises a second binding surface which is arranged in parallel with the first binding surface, and the second binding surface and the first binding surface are located at the same horizontal height; a concave die cavity is formed in the first bonding surface, an injection port is formed in one side, away from the concave die cavity, of the concave die, and the injection port is communicated with the concave die cavity; the second binding surface is provided with a convex die cavity corresponding to the concave die cavity, and the convex die cavity is matched with the concave die cavity; a cylindrical cavity is horizontally arranged in the convex die, an output port is formed in the end face, close to one end of the concave die, of the cavity, a piston is movably arranged in the cavity, a connecting rod is fixedly arranged on the piston and horizontally arranged, one end, close to the convex die, of the connecting rod is fixedly connected with the first binding face through the output port, and the connecting rod and the output port are in sliding sealing fit; an inlet used for being communicated with a hydraulic mechanism is formed in one side, away from the second binding face, of the convex die, the inlet is communicated with one end, away from the concave die, of the cavity through a channel formed in the convex die, and the channel is arranged in the convex die in a bending mode.

2. The mold of an injection molding machine according to claim 1, wherein the second abutting surface is provided with an insert block, and the first abutting surface is provided with a jack matched with the insert block corresponding to the insert block.

3. An injection molding machine mold as claimed in claim 2, wherein said channel passes through said insert block.

4. An injection molding machine mold according to claim 1, wherein the hydraulic mechanism includes a first hydraulic cylinder, a second hydraulic cylinder, and a main hydraulic hose communicating with the inlet port, the first hydraulic cylinder communicating with the main hydraulic hose through a first hydraulic hose, the second hydraulic cylinder communicating with the main hydraulic hose through a second hydraulic hose, the first hydraulic hose and the second hydraulic hose being provided with a first hydraulic pump and a hydraulic pump, respectively.

5. An injection molding machine mold as claimed in claim 4, wherein said first and second hydraulic cylinders are each provided with an inlet and an outlet.

6. An injection molding machine mold according to claim 1, wherein the guide rail is rod-shaped, a linear bearing is movably provided on the guide rail, the male mold is fixedly connected with the linear bearing through a connecting block, and the number of the guide rail is at least 2.