CN211709909U

CN211709909U - Be used for plastic production to use accurate mould

Info

Publication number: CN211709909U
Application number: CN201922445516.8U
Authority: CN
Inventors: 施文俊; 游阳杰
Original assignee: Suzhou Muye Precision Electronic Technology Co ltd
Current assignee: Suzhou Muye Precision Electronic Technology Co ltd
Priority date: 2019-12-30
Filing date: 2019-12-30
Publication date: 2020-10-20
Anticipated expiration: 2029-12-30

Abstract

The utility model discloses an accurate mould for plastic production in the technical field of plastic production, which comprises a lower die holder, wherein a lower die plate is welded at the top of the lower die holder, guide pillars are arranged at the periphery of the top of the lower die plate, the tops of the guide pillars are all inserted on the outer wall of an upper die plate, an upper die holder is welded at the top of the upper die plate, a cavity is arranged at the middle end of the top of the lower die plate, a cooling cavity is arranged at the outer side of the cavity of the lower die plate, ejection devices are arranged at two sides of the inner wall at the bottom of the cooling cavity, a water inlet pipe is communicated with the top end at the right side of the cooling cavity and penetrates through the lower die plate, the bottom end of the water inlet pipe is communicated with a water pump, cooling water in a cooling water tank is pumped out from a transmission pipe through the water pump, the cooling water is fed into the cooling cavity through the water, the efficiency of plastic product cooling shaping is improved.

Description

Be used for plastic production to use accurate mould

Technical Field

The utility model relates to a plastic production technical field specifically is a be used for plastic production to use accurate mould.

Background

The precision mold for plastic production is used for being installed on an injection molding machine to perform plastic product injection molding production, when the existing precision mold for plastic production is used, the existing precision mold is generally waited for plastic product cooling molding in a natural cooling mode, and the plastic product is not convenient to take out during demolding, so that the working efficiency is low, and when molten plastic is injected into a cavity, the using amount of the molten plastic cannot be controlled, so that the molten plastic is easy to waste.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a be used for plastic production to use accurate mould to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a precise die for plastic production comprises a lower die holder, wherein a lower die plate is welded at the top of the lower die holder, guide pillars are arranged at the periphery of the top of the lower die plate, the tops of the guide pillars are all inserted on the outer wall of an upper die plate, an upper die holder is welded at the top of the upper die plate, a die cavity is arranged at the middle end of the top of the lower die plate, a cooling cavity is arranged on the outer side of the die cavity of the lower die plate, ejection devices are arranged on two sides of the inner wall of the bottom of the cooling cavity, the top end of the right side of the cooling cavity is communicated with a water inlet pipe, the water inlet pipe penetrates through the lower die plate, the bottom end of the water inlet pipe is communicated with a water pump, a water inlet valve is arranged on the outer wall of the water inlet pipe, a drain pipe is arranged at the left end of a base of the cooling cavity, the left end of, the right end of the transmission pipe is communicated with a water pump, a first flow channel is arranged at the middle end of the upper die base, the top of the first flow channel is communicated with the feeding device, a second flow channel is arranged at the middle end of the upper die plate, the top of the second flow channel is communicated with the first flow channel, the bottom of the second flow channel is communicated with the die cavity, and the diameter of the second flow channel is gradually increased from top to bottom.

Preferably, ejection device is including setting up the sleeve pipe on cooling chamber bottom inner wall, cooling chamber bottom is provided with the cylinder, and the cylinder is located sheathed tube inside, the piston rod at cylinder top is connected with the push pedal, the outer wall and the sleeve pipe laminating of push pedal are connected.

Preferably, feed arrangement includes the inlet pipe, the vertical scale mark that is provided with in front side of inlet pipe, the bottom intercommunication of inlet pipe has the fixed pipe of first flow channel intercommunication, and is provided with feed valve on the front side top outer wall of fixed pipe.

Preferably, the top of sleeve pipe and push pedal is parallel and level, and the top of sleeve pipe and push pedal all is parallel and level with the bottom of die cavity.

Preferably, the top of the left side of the cooling water tank is obliquely and downwards provided with a water adding pipe, and the top of the front side of the cooling water tank is provided with an observation window.

Preferably, the bottoms of the water pump and the cooling water tank are both provided with bases, and the bottoms of the bases and the lower die base are located on the same horizontal line.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the cooling water in the cooling water tank is pumped out from the transmission pipe through the water pump, the cooling water is fed into the cooling cavity through the water inlet pipe, and then the molten plastic in the cavity is uniformly cooled through the cooling water in the cooling cavity, so that the cooling molding efficiency of the plastic product is improved, the cylinder works to drive the push plate to push the plastic product out of the cavity, the plastic product is convenient to take out, and the working efficiency can be effectively improved by improving the cooling molding efficiency of the plastic product and the taking-out efficiency after molding;

2. by arranging the feeding pipe, the scale marks, the fixed pipe and the feeding valve, the consumption of the molten plastic in the feeding pipe can be known conveniently, and the reasonable consumption of the molten plastic entering the cavity can be ensured, so that the waste of the molten plastic can be avoided;

3. through being provided with diameter from the top down gradual increase's second runner, can reduce the velocity of flow of melting plastics gradually to reduce the impact force of melting plastics to the die cavity, protect the die cavity effectively, thereby improved the quality after the plastic product shaping.

Drawings

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

fig. 2 is a schematic structural view of the ejection device of the present invention;

fig. 3 is a schematic structural view of the feeding device of the present invention.

In the figure: 1. a lower die holder; 2. a lower template; 3. a guide post; 4. mounting a template; 5. an upper die holder; 6. a cavity; 7. a cooling cavity; 8. an ejection device; 81. a sleeve; 82. a cylinder; 83. pushing the plate; 9. a water inlet pipe; 10. a water pump; 11. a water inlet valve; 12. a drain pipe; 13. a cooling water tank; 14. a drain valve; 15. a conveying pipe; 16. a first flow passage; 17. a feeding device; 171. a feed pipe; 172. scale lines; 173. a fixed tube; 174. a feed valve; 18. a second flow passage.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The utility model provides a technical scheme: a precise mold for plastic production, please refer to fig. 1, which comprises a lower mold base 1, a lower mold plate 2 welded on the top of the lower mold base 1, guide posts 3 arranged on the periphery of the top of the lower mold plate 2, and guide posts 3 inserted on the outer wall of an upper mold plate 4 to precisely position when closing the mold, an upper mold base 5 welded on the top of the upper mold plate 4, a cavity 6 arranged at the middle end of the top of the lower mold plate 2, a cooling cavity 7 arranged on the outer side of the cavity 6 of the lower mold plate 2 for cooling molten plastic in the cavity 6, ejection devices 8 arranged on both sides of the inner wall of the bottom of the cooling cavity 7 for ejecting plastic products cooled and molded in the cavity 6, a water inlet pipe 9 communicated with the top end of the right side of the cooling cavity 7, the water inlet pipe 9 penetrating through the lower mold plate 2, the bottom end of the water inlet pipe 9 communicated with a water pump 10, the, a water inlet valve 11 is arranged on the outer wall of the water inlet pipe 9, a water outlet pipe 12 is arranged at the left end of the base of the cooling cavity 7, the left end of the water outlet pipe 12 penetrates through the lower template 2 and is communicated with a cooling water tank 13, cooling water is arranged in the cooling water tank 13, and a heat dissipation device for discharging water with temperature to the water outlet pipe 12 is arranged, for the prior art and not repeated, a water outlet valve 14 is arranged on the outer wall of the water outlet pipe 12, the water inlet pipe 9 and the water outlet pipe 12 are both transparent pipelines, a transmission pipe 15 is connected to the bottom end of the right side of the water outlet pipe 12, the right end of the transmission pipe 15 is communicated with the water pump 10, and the cooling water is conveniently pumped out through;

referring to fig. 1, a first flow channel 16 is disposed at a middle end of an upper mold base 5, a top of the first flow channel 16 is communicated with a feeding device 17 and is used for injecting molten plastic, a second flow channel 18 is disposed at a middle end of an upper mold plate 4, a top of the second flow channel 18 is communicated with the first flow channel 16, a bottom of the second flow channel 18 is communicated with a mold cavity 6, and a diameter of the second flow channel 18 is gradually increased from top to bottom, so that a flow rate of the molten plastic can be gradually reduced, an impact force of the molten plastic on the mold cavity 6 is reduced, and the mold cavity 6 is effectively protected.

Referring to fig. 1 and 2, the ejection device 8 includes a sleeve 81 disposed on an inner wall of the bottom of the cooling cavity 7, a cylinder 82 is disposed at the bottom of the cooling cavity 7, the cylinder 82 is located inside the sleeve 81, a piston rod at the top of the cylinder 82 is connected to a push plate 83, an outer wall of the push plate 83 is attached to the sleeve 81, and after demolding, the push plate 83 moves upward by operation of two sets of cylinders 82, so that the plastic product can be pushed out of the cavity 6, thereby improving efficiency of taking out the plastic product;

referring to fig. 3, the feeding device 17 includes a feeding pipe 171, the feeding pipe 171 is a transparent pipe, scale marks 172 are vertically arranged on the front side of the feeding pipe 171, the bottom end of the feeding pipe 171 is communicated with a fixed pipe 173 communicated with the first flow channel 16, a feeding valve 174 is arranged on the outer wall of the top of the front side of the fixed pipe 173, molten plastic is injected into the feeding pipe 171, the dosage of the molten plastic is controlled by observing the scale marks 172 and the feeding valve 174, and thus the dosage of the molten plastic entering the cavity 6 is reasonable, and waste of the molten plastic can be avoided;

referring to fig. 2, the top of the sleeve 81 is flush with the top of the push plate 83, and the top of both the sleeve 81 and the top of the push plate 83 are flush with the bottom of the cavity 6, so that the molding of the plastic product is not affected;

referring to fig. 1, a water feeding pipe is obliquely and downwardly arranged at the top of the left side of the cooling water tank 13 for feeding cooling water, and an observation window is arranged at the top of the front side of the cooling water tank 13 to facilitate the understanding of the water amount in the cooling water tank 13 during water feeding;

referring to fig. 1, bases are respectively disposed at the bottoms of the water pump 10 and the cooling water tank 13, and the bases and the bottom of the lower die holder 1 are located on the same horizontal line, so that the water pump 10 and the cooling water tank 13 are conveniently fixed by the bases.

The working principle is as follows: when the cooling device is used, molten plastic is injected into the feeding pipe 171, the using amount of the molten plastic is controlled by observing the scale mark 172 and the feeding valve 174, the molten plastic enters the first flow channel 16 through the fixing pipe 173, then the flow rate of the molten plastic can be gradually reduced through the second flow channel 18 with the diameter gradually increasing from top to bottom, so that the impact force of the molten plastic on the cavity 6 is reduced, the cavity 6 is effectively protected, after the injection is finished, the water pump 10 is started, the water inlet valve 11 is opened, cooling water in the cooling water tank 13 is pumped out through the transmission pipe 15, then the cooling water enters the cooling cavity 7 through the water inlet pipe 9, the cooling water is filled in the cooling cavity 7 by closing the water discharge valve 14, the water pump 10 is closed, so that the molten plastic in the cavity 6 can be uniformly cooled, the cooling forming efficiency of a plastic product is improved, and after the product is cooled and formed, the water, make the cooling water that has the temperature in cooling chamber 7 pass through drain pipe 12 and get into cooling water tank 13 internal cooling, be convenient for use next time, after the drawing of patterns, through two sets of cylinders 82 work for push pedal 83 rebound, and then can release the plastic product from die cavity 6, improved the efficiency of taking out the plastic product.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a be used for plastic production to use precision mold, includes die holder (1), its characterized in that: the cooling die is characterized in that a lower die plate (2) is welded at the top of the lower die base (1), guide pillars (3) are arranged at the periphery of the top of the lower die plate (2), the tops of the guide pillars (3) are all inserted into the outer wall of an upper die plate (4), an upper die base (5) is welded at the top of the upper die plate (4), a cavity (6) is arranged at the middle end of the top of the lower die plate (2), a cooling cavity (7) is arranged on the outer side of the cavity (6) of the lower die plate (2), ejection devices (8) are arranged on two sides of the inner wall of the bottom of the cooling cavity (7), a water inlet pipe (9) is communicated with the top end of the right side of the cooling cavity (7), the water inlet pipe (9) penetrates through the lower die plate (2), the bottom end of the water inlet pipe (9) is communicated with a water pump (10), a water inlet valve (11) is arranged on the outer wall, the left end of the drain pipe (12) penetrates through the lower die plate (2) and is communicated with the cooling water tank (13), a drain valve (14) is arranged on the outer wall of the drain pipe (12), the right bottom end of the drain pipe (12) is connected with a transmission pipe (15), the right end of the transmission pipe (15) is communicated with the water pump (10), a first flow channel (16) is arranged at the middle end of the upper die base (5), the top of the first flow channel (16) is communicated with a feeding device (17), a second flow channel (18) is arranged at the middle end of the upper die plate (4), the top of the second flow channel (18) is communicated with the first flow channel (16), the bottom of the second flow channel (18) is communicated with the die cavity (6), and the diameter of the second flow channel (18) is gradually increased from top to bottom.

2. The precision mold for plastic production according to claim 1, wherein: ejecting device (8) are including setting up sleeve pipe (81) on cooling chamber (7) bottom inner wall, cooling chamber (7) bottom is provided with cylinder (82), and cylinder (82) are located the inside of sleeve pipe (81), the piston rod at cylinder (82) top is connected with push pedal (83), the outer wall and the sleeve pipe (81) laminating of push pedal (83) are connected.

3. The precision mold for plastic production according to claim 1, wherein: feed arrangement (17) include inlet pipe (171), the vertical scale mark (172) that is provided with in front side of inlet pipe (171), the bottom intercommunication of inlet pipe (171) has fixed pipe (173) of first runner (16) intercommunication, and is provided with on the front side top outer wall of fixed pipe (173) feed valve (174).

4. The precision mold for plastic production according to claim 2, wherein: the top of the sleeve (81) is flush with the top of the push plate (83), and the top of the sleeve (81) and the top of the push plate (83) are flush with the bottom of the cavity (6).

5. The precision mold for plastic production according to claim 1, wherein: the left side top of cooling water tank (13) slopes to be provided with the filler pipe downwards, the observation window has been seted up at the front side top of cooling water tank (13).

6. The precision mold for plastic production according to claim 1, wherein: the bottom of the water pump (10) and the bottom of the cooling water tank (13) are both provided with bases, and the bases and the bottom of the lower die holder (1) are located on the same horizontal line.