CN112223656A

CN112223656A - Injection mold is used in production of cell-phone shell with cooling body

Info

Publication number: CN112223656A
Application number: CN202010949352.7A
Authority: CN
Inventors: 孟海涛
Original assignee: Wuhan Ailuote Technology Co ltd
Current assignee: Wuhan Ailuote Technology Co ltd
Priority date: 2020-09-10
Filing date: 2020-09-10
Publication date: 2021-01-15

Abstract

The invention discloses an injection mold with a cooling mechanism for production of a mobile phone shell, relates to the technical field of injection molds, and solves the problems that after injection molding is completed, the existing injection mold mostly adopts double-hand matching and can peel off a formed mobile phone shell from a male mold through finger scraping and pulling, both hands are occupied, and the operation is complicated and laborious. An injection mold with a cooling mechanism for production of a mobile phone shell comprises a female mold, wherein two supporting leg frames are symmetrically welded at the bottom of the female mold, and a feeding pipe is welded on the left side wall of the female mold in a penetrating manner and communicated with the left side wall of the female mold; the middle position of the bottom of the support leg frame at two positions of the female die is welded with a supporting connecting plate extending to the left side and the right side, and two vertical supporting support rods are symmetrically welded at two ends of the supporting connecting plate. According to the invention, through the power transmission of the two racks, the two trapezoidal top frames can be linked and meshed to drive the two gears and the two rubber rollers to rotate in the process of gliding and pushing, so that the trouble of operating and rotating the two rubber rollers by additional manual force is saved.

Description

Injection mold is used in production of cell-phone shell with cooling body

Technical Field

The invention relates to the technical field of injection molds, in particular to an injection mold with a cooling mechanism for producing a mobile phone shell.

Background

The injection mold for the mobile phone shell is a tool for producing the plastic mobile phone shell and is also a tool for endowing a plastic product with a complete structure and accurate size. Injection molding is a process used to mass produce parts of some complex shapes. Specifically, the plastic melted by heating is injected into a mold cavity from an injection molding machine at high pressure, and a formed product is obtained after cooling and solidification. The injection mold for the mobile phone shell is divided into two types, namely a thermosetting plastic mold and a thermoplastic plastic mold according to the molding characteristics, and divided into a transfer mold, a blow mold, a cast mold, a hot forming mold, a hot pressing mold, an injection mold and the like according to the molding process, wherein the hot pressing mold can be divided into three types, namely a flash type, a semi-flash type and a non-flash type, by a flash mode, the injection mold can be divided into two types, namely a cold runner mold and a hot runner mold, by a pouring system, and can be divided into a movable type and a fixed type by an installation.

For example, patent No. CN201410004871.0 discloses an injection mold for a mobile phone shell, which includes a movable mold side platen fixing plate, a fixed mold side platen fixing plate, a male mold plate and a female mold plate, wherein the female mold plate and the male mold plate enclose a molding cavity; a first barb matched with the reverse buckle at one end of the mobile phone shell is fixedly arranged on the male template, the lower end of the first barb is connected with a mandril, and a second barb matched with the reverse buckle at the other end of the mobile phone shell is fixedly arranged on the fixing plate; a first inclined extending pin and a second inclined extending pin are fixedly arranged on the fixing plate; the female die plate is provided with a first sliding block and a second sliding block; the first slider is provided with a first avoidance hole matched with the first oblique extending pin, and the second slider is provided with a second avoidance hole matched with the second oblique extending pin. According to the injection mold for the mobile phone shell, the matched avoidance mechanisms are arranged on the male template and the female template, so that the injection molding processing of the reverse buckle part of the mobile phone shell is feasible and simple, the mold opening process is simple, and the processing efficiency is high.

The inside cooling water circulation cavity of current injection mould or lack the reposition of redundant personnel structure in the pipeline, the route of hydrologic cycle is single, the circulation is too concentrated and is collected, cause the cooling water can not with the abundant even contact of the water cavity casing of injection mould, influence heat transfer cooling effect, mould plastics in addition and mostly adopt both hands cooperation and scrape through the finger and draw the cell-phone shell after can will forming to peel off from the terrace die after accomplishing, occupy both hands, and complex operation is hard inconvenient.

Disclosure of Invention

The invention aims to provide an injection mold for producing a mobile phone shell with a cooling mechanism, and aims to solve the problems that after injection is finished, the formed mobile phone shell can be stripped from a male mold by mostly matching two hands and scraping and pulling the mobile phone shell by fingers, so that the two hands are occupied, and the operation is complicated and laborious.

In order to achieve the purpose, the invention provides the following technical scheme: an injection mold with a cooling mechanism for production of a mobile phone shell comprises a female mold, wherein two supporting leg frames are symmetrically welded at the bottom of the female mold, and a feeding pipe is welded on the left side wall of the female mold in a penetrating manner and communicated with the left side wall of the female mold; the middle position of the bottom of the two supporting leg frames of the female die is welded with a supporting connecting plate extending to the left side and the right side, two ends of the supporting connecting plate are symmetrically welded with two vertical supporting rods, an oil cylinder is locked and supported between the top end sections of the two vertical supporting rods, and the bottom of a piston rod of the oil cylinder is locked and hung with a male die; the male die and the female die are directly opposite to each other in the vertical direction, the interiors of the male die and the female die are both of a hollow structure, and a row of water-stop plates are welded in the hollow water cavities at equal intervals; the vertical supporting rod comprises a positioning shaft rod and vertical supporting slide rods, two positioning lug plates are welded on the bottom sections of the two vertical supporting rods in a left-right opposite direction, two vertical supporting slide rods are inserted on the two positioning lug plates in a penetrating and inserting manner through spring pushing, the middle sections of the two vertical supporting rods are welded on the middle sections of the two vertical supporting rods in a left-right opposite direction in a supporting manner, and two groups of vertical supporting slide rods are arranged on the two groups of vertical supporting slide rods in a four-position manner, and a rectangular sliding frame is sleeved on each of the two groups of vertical supporting slide rods in; a pressure rod is welded between the bottom sections of the two vertical support sliding rods in a forward support mode.

Preferably, the vertical supporting rod further comprises a trapezoidal top frame and a rack, the top ends of the two vertical supporting sliding rods are respectively welded with the trapezoidal top frame in a supporting manner, the top ends of the two trapezoidal top frames are respectively welded with an L-shaped connecting rod which is supported forwards, and the tail ends of the two L-shaped connecting rods are respectively welded with the rack.

Preferably, the sliding frame comprises rubber rollers, gears and positioning sleeves, two rubber rollers are rotatably mounted at the head ends of the two sliding frames, rotating shafts of the two rubber rollers extend forwards in a protruding manner, and the front end sections of the rotating shafts of the two rubber rollers are respectively sleeved with a gear; the two sliding frames are both forwards supported and welded with a positioning sleeve.

Preferably, two tension springs are hung and connected between the two sliding frames and the two vertical supporting rods, and the two vertical supporting rods penetrate through the middle spacing grooves of the left and right positioning shaft rods.

Preferably, the bottom bevel edges of the two trapezoidal top frames are vertically opposite to the tail end side plates of the two sliding frames, and the bottom bevel edges of the two trapezoidal top frames can slide downwards to be in top sliding contact with the tail end side plates of the two sliding frames.

Preferably, a circle of friction strips are arranged on each of the two rubber rollers in an annular array, and when the male die slides up, the two rubber rollers are horizontally as high as the left end face and the right end face of the lower convex part of the rubber rollers.

Preferably, the back parts of the two racks are respectively welded with a hexagonal prism rod at intervals in a vertical supporting manner, the two hexagonal prism rods are correspondingly inserted and matched with the two positioning sleeves, and the two racks are correspondingly contacted and meshed with the two gears.

Preferably, the front side wall and the rear side wall of the male die and the female die are respectively provided with a row of water guide short pipes in a supporting and welding mode, and the two rows of water guide short pipes are correspondingly communicated with a water flow channel between the row of water-stop plates in a penetrating mode.

Compared with the prior art, the invention has the beneficial effects that:

1. according to the invention, through the matching linkage use of the two trapezoidal top frames and the two racks, the two rubber rollers can be pushed and controlled to slide inwards and rotate only by the simple lower pull-down rod, so that the two rubber rollers are contacted with the mobile phone shell on the male die and can be rotated and peeled off, compared with the operation of peeling the mobile phone shell by matching two hands, the operation is more convenient, quicker and more labor-saving, and the peeling of the mobile phone shell can be completed by only one hand, so that the occupation of two hands is reduced;

2. the row of water-stop plates have the water diversion function, can divide circulating cooling water into multiple paths at intervals, and can spread out multiple paths of cold water to uniformly circulate in the inner cavities of the male die and the female die and fully and comprehensively contact with the shells of the male die and the female die, so that the heat exchange cooling effect is effectively improved, and the cooling water is prevented from gathering and circulating at a certain direction to cause the leakage contact or insufficient contact with the shells of the male die and the female die to influence the cooling performance;

3. through the power transmission of the two racks, the two trapezoidal top frames can be in linkage meshing to drive the two gears and the two rubber rollers to rotate in the process of sliding downwards and pushing, so that the trouble of operating the two rubber rollers by additional manual force is saved, and the peeling step of the mobile shell is simplified.

Drawings

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

FIG. 2 is a schematic three-dimensional structure of the present invention;

FIG. 3 is a schematic diagram of the back three-dimensional structure of the present invention;

FIG. 4 is a schematic bottom three-dimensional structure of the present invention;

FIG. 5 is a schematic structural view of a male die of the present invention;

FIG. 6 is a schematic view of the structure of the female mold of the present invention;

FIG. 7 is a schematic view showing the installation position of the rubber roller according to the present invention;

FIG. 8 is an enlarged view of portion A of FIG. 4 according to the present invention;

in the figure: 1. a vertical supporting rod; 101. positioning the shaft lever; 102. vertically supporting the sliding rod; 103. a trapezoidal top frame; 104. a rack; 2. an oil cylinder; 3. a male die; 4. a female die; 401. a feed pipe; 5. a sliding frame; 501. a rubber roller; 502. a gear; 503. a positioning sleeve; 6. a pressure lever; 7. a water-stop sheet.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1 to 8, an embodiment of the present invention includes: an injection mold with a cooling mechanism for production of a mobile phone shell comprises a female mold 4, wherein two supporting leg frames are symmetrically welded at the bottom of the female mold 4, and a feeding pipe 401 is welded on the left side wall of the female mold 4 in a penetrating manner and communicated with the left side wall; a supporting connecting plate extending to the left side and the right side is welded at the middle position of the bottoms of two supporting leg frames of the female die 4, two vertical supporting struts 1 are symmetrically welded at two ends of the supporting connecting plate, an oil cylinder 2 is locked and supported between the top end sections of the two vertical supporting struts 1, and a male die 3 is locked and hung at the bottom of a piston rod of the oil cylinder 2; the male die 3 is directly opposite to the female die 4 in the vertical direction, the interiors of the male die 3 and the female die 4 are both of a hollow structure, and a row of water-stop plates 7 are welded in the hollow water cavities at equal intervals; the vertical supporting rod 1 comprises a positioning shaft rod 101 and vertical supporting slide rods 102, two positioning ear plates are welded on the bottom sections of the two vertical supporting rods 1 in a left-right opposite direction, two vertical supporting slide rods 102 are inserted on the two positioning ear plates in a penetrating and inserting manner through spring pushing, two groups of four vertical supporting slide rods 102 are welded on the middle sections of the two vertical supporting rods 1 in a left-right opposite direction, and a rectangular sliding frame 5 is sleeved on each of the two groups of vertical supporting slide rods 102 in a sliding manner; a pressure rod 6 is welded between the bottom sections of the two vertical support sliding rods 102 in a forward support mode; the vertical supporting rod 1 further comprises a trapezoidal top frame 103 and racks 104, the top ends of the two vertical supporting sliding rods 102 are respectively welded with the trapezoidal top frame 103 in a supporting manner, the top ends of the two trapezoidal top frames 103 are respectively welded with an L-shaped connecting rod which is supported forwards, and the tail ends of the two L-shaped connecting rods are respectively welded with the racks 104; the sliding frame 5 comprises rubber rollers 501, gears 502 and a positioning sleeve 503, two rubber rollers 501 are rotatably mounted at the head ends of the two sliding frames 5, the rotating shafts of the two rubber rollers 501 extend forwards in a protruding manner, and the front end sections of the rotating shafts of the two rubber rollers 501 are respectively sleeved with one gear 502; two positioning sleeves 503 are supported and welded forwards on the sliding frames 5; two tension springs are respectively hung between the two sliding frames 5 and the two vertical supporting rods 1, the two vertical supporting sliding rods 102 penetrate through the middle spacing grooves of the left and right positioning shaft rods 101, and the four tension springs can pull back and reset the two sliding frames 5.

Further, the bottom bevel edges of the two trapezoidal top frames 103 are opposite to the tail end side plates of the two sliding frames 5 up and down, the bottom bevel edges of the two trapezoidal top frames 103 can slide down to be in top sliding contact with the tail end side plates of the two sliding frames 5, and the two sliding frames 5 can be synchronously pushed and controlled to slide inwards by virtue of the top sliding fit of the two trapezoidal top frames 103 and the bevel surfaces of the two sliding frames 5 only by pulling down the pressing rod 6, so that the two rubber rollers 501 are in close contact with the left side and the right side of the male die 3.

Further, the rubber rollers 501 are all provided with a circle of friction strips in an annular array, when the male die 3 slides up, the rubber rollers 501 and the left and right end faces of the lower convex part are equal in height, the rubber rollers 501 can abut against and contact with the mobile phone shell formed on the male die 3 in a clamping manner, the injection molding mobile phone shell is rotationally taken off from the male die 3, and compared with the traditional manual stripping mobile phone shell, the operation is convenient and efficient, and time and labor are saved.

Further, the backs of the two racks 104 are respectively welded with a hexagonal rod at intervals, the two hexagonal rods are correspondingly and alternately matched with the two positioning sleeves 503, the two racks 104 are correspondingly contacted and meshed with the two gears 502, and the two trapezoidal top frames 103 can be linked and meshed to drive the two gears 502 and the two rubber rollers 501 to rotate in the process of sliding down and pushing through the power transmission of the two racks 104, so that the trouble of operating and rotating the two rubber rollers 501 by additional manual force is eliminated, and the peeling step of the mobile case is simplified.

Further, it has one row of water guide nozzle stub to all support the welding on the lateral wall around terrace die 3 and die 4, this two rows of water guide nozzle stub correspond and one row of water-stop sheet 7 between the rivers passageway run through the intercommunication, one row of water-stop sheet 7 has the water diversion effect and can divide into the multichannel with the recirculated cooling water interval, the even circulation in the inside cavity of terrace die 3 and die 4 can be spread out to multichannel cold moisture, carry out abundant comprehensive contact with the casing of terrace die 3 with die 4, the heat transfer cooling effect has effectively been promoted, avoid the cooling water collection to circulate at a certain position gathering, cause the casing with terrace die 3 and die 4 to leak contact or contact inadequately, influence the cooling performance.

The working principle is as follows: when in use, firstly, the water pipes at the two sides of the male die 3 and the female die 4 are connected with circulating cooling water, then the male die 3 is pushed downwards by the oil cylinder 2, the male die 3 and the female die 4 are connected together in a sealing and butting way, then, a feed pipe 401 is used for filling material liquid into a gap between the male die 3 and the female die 4, after the filling is finished, an external circulating cooling water pump is started to cool the filled material liquid, so that the filled material liquid is cooled to form a mobile phone shell, then, the male die 3 is lifted, the mobile phone shell is clamped on the male die 3 and lifted along with the male die 3, at the moment, the pressure rod 6 is pulled downwards, the pressure rod 6 drives the two vertical supporting slide rods 102 and the two trapezoidal top frames 103 to slide downwards, the two trapezoidal top frames 103 are in top sliding fit with the inclined surfaces of the two sliding frames 5, the two sliding frames 5 can be synchronously pushed and controlled to slide inwards, so that the two rubber, the two trapezoidal top frames 103 can be linked, meshed and driven to drive the two gears 502 and the two rubber rollers 501 to rotate in the process of sliding downwards and pushing so as to peel off the mobile phone shell, and the injection molding operation is finished from this time;

when the pressing rod 6 is loosened, the two tension springs between the sliding frame 5 and the two vertical supporting rods 1 can pull back and reset the two sliding frames 5 and the two rubber rollers 501, and the two vertical supporting sliding rods 102 and the two trapezoidal top frames 103 are also pushed back and pushed upwards to reset.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides an injection mold is used in production of cell-phone shell with cooling body which characterized in that: the device comprises a female die (4), wherein two supporting leg frames are symmetrically welded at the bottom of the female die (4), and a feeding pipe (401) is communicated with the left side wall of the female die (4) in a penetrating manner; a supporting and connecting plate extending to the left side and the right side is welded at the middle position of the bottoms of two supporting leg frames of the female die (4), two vertical supporting struts (1) are symmetrically welded at two ends of the supporting and connecting plate, an oil cylinder (2) is locked and supported between the top end sections of the two vertical supporting struts (1), and a male die (3) is locked and hung at the bottom of a piston rod of the oil cylinder (2); the male die (3) is directly opposite to the female die (4) in the vertical direction, the interiors of the male die (3) and the female die (4) are both of a hollow structure, and a row of water-stop plates (7) are welded in the hollow water cavities at equal intervals; the vertical supporting rod (1) comprises a positioning shaft rod (101) and vertical supporting slide rods (102), two positioning ear plates are oppositely welded on the bottom sections of the two vertical supporting rods (1) in a left-right mode, two vertical supporting slide rods (102) are inserted on the two positioning ear plates in a penetrating and inserting mode through spring pushing, two groups of four vertical supporting slide rods (102) are oppositely welded on the middle sections of the two vertical supporting rods (1) in a left-right mode, and a rectangular sliding frame (5) is slidably installed on the two groups of vertical supporting slide rods (102); a pressure lever (6) is welded between the bottom sections of the two vertical support sliding rods (102) in a forward support mode.

2. The injection mold for producing mobile phone shells with cooling mechanism as claimed in claim 1, wherein: the vertical supporting rod (1) further comprises a trapezoidal top frame (103) and a rack (104), the top ends of the two vertical supporting sliding rods (102) are respectively welded with the trapezoidal top frame (103) in a supporting mode, the top ends of the two trapezoidal top frames (103) are respectively welded with an L-shaped connecting rod which is supported forwards, and the tail ends of the two L-shaped connecting rods are respectively welded with the rack (104).

3. The injection mold for producing mobile phone shells with cooling mechanism as claimed in claim 1, wherein: the sliding frame (5) comprises rubber rollers (501), gears (502) and positioning sleeves (503), two rubber rollers (501) are rotatably mounted at the head ends of the two sliding frames (5), the rotating shafts of the two rubber rollers (501) extend forwards in a protruding mode, and the gears (502) are sleeved on the front end sections of the rotating shafts of the two rubber rollers (501); two positioning sleeves (503) are supported and welded forwards on the sliding frames (5).

4. The injection mold for producing mobile phone shells with cooling mechanism as claimed in claim 1, wherein: two tension springs are hung and connected between the two sliding frames (5) and the two vertical supporting rods (1), and the two vertical supporting sliding rods (102) penetrate through the middle spacing grooves of the left and right groups of positioning shaft rods (101).

5. The injection mold for producing the mobile phone case with the cooling mechanism according to claim 2, wherein: the bottom bevel edges of the two trapezoidal top frames (103) are vertically opposite to the tail end side plates of the two sliding frames (5), and the bottom bevel edges of the two trapezoidal top frames (103) can slide downwards to be in top sliding contact with the tail end side plates of the two sliding frames (5).

6. The injection mold for producing mobile phone shells with cooling mechanism as claimed in claim 3, wherein: the two rubber rollers (501) are respectively provided with a circle of friction strips in an annular array, and when the male die (3) slides up, the two rubber rollers (501) are horizontally as high as the left end surface and the right end surface of the lower convex part.

7. The injection mold for producing mobile phone shells with cooling mechanisms as claimed in claim 2, wherein: the backs of the two racks (104) are respectively welded with a hexagonal prism rod at intervals in a vertical supporting manner, the two hexagonal prism rods are correspondingly and alternately matched with the two positioning sleeves (503), and the two racks (104) are correspondingly contacted and meshed with the two gears (502).

8. The injection mold for producing mobile phone shells with cooling mechanism as claimed in claim 1, wherein: the front side wall and the rear side wall of the male die (3) and the female die (4) are respectively provided with a row of water guide short pipes in a supporting and welding mode, and the two rows of water guide short pipes are correspondingly communicated with a water flow channel between the row of water-stop plates (7) in a penetrating mode.