CN218576884U - Injection mold of fluidic device body - Google Patents

Abstract

The utility model relates to an injection mold of a fluidic device, which comprises a movable mold base, a movable mold core embedded in the rear side of the movable mold base, a fixed mold base arranged in the rear side of the movable mold base and matched with the movable mold base, and a fixed mold core embedded in the front side of the fixed mold base and matched with the movable mold core; the fixed die base is also provided with two core pulling assemblies which are arranged in a central symmetry manner, each core pulling assembly comprises a core pulling slide block which is movably connected inside the front side of the fixed die base and has a transverse moving function, a core pulling cylinder fixed on the outer wall of the fixed die base, and a first core rod and a second core rod which are transversely fixed on the inner side of the core pulling slide block; two first internal thread forming assemblies which are arranged in central symmetry are arranged between the movable die holder and the fixed die holder; the utility model discloses the production that can put in place by one step is gone out fluidic device finished product, has both improved production efficiency and has hanged down, has guaranteed again that the machining precision reduces the defective rate in order to reduce by a wide margin.

Description

Injection mold of fluidic device body

Technical Field

The utility model relates to an injection mold of fluidic device body.

Background

The jet device is a device for gas-liquid mixing, the outer shell of the jet device is called as a jet device body, no moving part is arranged in the jet device body, and incompatible fluids are respectively dispersed only by means of the internal special structure and fluid movement; the jet body is mostly made of corrosion-resistant plastics, so the manufacturing method is mainly injection molding; in order to match and connect related joints and pipelines, a large number of internal threads and external threads need to be arranged on a jet device body, and the external threads can be synchronously formed during injection molding, so that the external threads can be simply and conveniently processed by the conventional injection mold, but the internal threads cannot be formed during injection molding, and the internal threads can be processed in the jet device body by using an internal thread processing tool only after the jet device body is molded and taken out.

SUMMERY OF THE UTILITY MODEL

To the current situation of above-mentioned prior art, the utility model aims to solve the technical problem that a production outgoing fluid ware finished product that can one step put in place is provided, and then both improved production efficiency low, guaranteed again the injection mold of the jet ware of machining precision in order to reduce the defective rate by a wide margin.

The utility model provides a technical scheme that above-mentioned technical problem adopted does: an injection mold of a fluidic device comprises a movable mold base, a movable mold core embedded in the rear side of the movable mold base, a fixed mold base arranged on the rear side of the movable mold base and matched with the movable mold base, and a fixed mold core embedded in the front side of the fixed mold base and matched with the movable mold core; the fixed die base is provided with two core pulling assemblies which are arranged in a central symmetry manner, each core pulling assembly comprises a core pulling slide block which is movably connected inside the front side of the fixed die base and has a transverse moving function, a core pulling cylinder fixed on the outer wall of the fixed die base, and a first core rod and a second core rod which are transversely fixed on the inner side of the core pulling slide block; the telescopic end of the core pulling cylinder is transversely arranged and detachably fixed on the core pulling slide block; two first internal thread forming assemblies which are arranged in a central symmetry manner are further arranged between the movable die holder and the fixed die holder, each first internal thread forming assembly comprises a forming slide block which is movably connected inside the front side of the fixed die holder and has a vertical moving function, a plurality of forming push rods which are obliquely fixed on the rear side of the movable die holder and are all inserted into the forming slide blocks and are sequentially and transversely distributed, a first driven gear which is rotatably connected to the inner side of the forming slide block, a first forming shaft which is vertically and concentrically inserted into the first driven gear and can slide along the axial direction of the first driven gear, a first forming motor which is fixed on the outer wall of the fixed die holder, a transmission shaft sleeve which is vertically and rotatably inserted into the fixed die holder, and a first driving gear which is sleeved on the transmission shaft sleeve, rotatably inserted into the fixed die holder and is meshed with the first driven gear; the rotating shaft of the first forming motor is vertically arranged and connected with the outer end of the transmission shaft sleeve, and a first external thread part is formed on the outer peripheral surface of the end part of the first forming shaft.

Preferably, the molding device further comprises a second internal thread molding assembly, wherein the second internal thread molding assembly comprises a partition plate fixed on the rear side of the bottom plate, a cover plate fixed on the rear side of the partition plate, a motor frame fixed on the outer wall of the bottom plate, a second molding motor fixed on the motor frame, a transmission shaft rod transversely and rotatably inserted into the partition plate, a driven sprocket sleeved on the rear end of the transmission shaft rod and between the partition plate and the cover plate, a second driving gear sleeved on the front end of the transmission shaft rod and between the bottom plate and the partition plate, a driving sprocket sleeved on a rotating shaft of the second molding motor, a chain sleeved between the driving sprocket and the driven sprocket and inserted between the bottom plate and the partition plate, two second driven gears rotatably connected between the bottom plate and the partition plate and mutually meshed with the second driving gears, and two second molding shafts which are respectively concentrically fixed in the two second driven gears and can slide along the corresponding second driven gear shafts; the end parts of the two second molding shafts sequentially penetrate through the bottom plate and the fixed die holder forwards and extend into the fixed die core, and second external thread parts are formed on the outer peripheral surfaces of the end parts of the two second molding shafts.

Preferably, the rear side of the movable mold core is provided with two movable mold cavities which are centrosymmetrically distributed, correspondingly, the front side of the fixed mold core is provided with two fixed mold cavities which are centrosymmetrically distributed, and the two fixed mold cavities are respectively spliced with the two movable mold cavities.

Preferably, a first straight-tube cavity and a first conical cavity are formed in the inner wall of one side of the movable die cavity, correspondingly, a second straight-tube cavity and a second conical cavity are formed in the inner wall of one side of the fixed die cavity, and the second straight-tube cavity and the second conical cavity are respectively spliced with the first straight-tube cavity and the first conical cavity.

Preferably, the first straight cylinder cavity and the inner wall of the second straight cylinder cavity are both provided with a first external thread forming block in an embedded mode, the outer wall of the first external thread forming block is provided with a first semicircular internal thread hole, and the first semicircular internal thread holes are mutually spliced on the two first external thread forming blocks.

Preferably, a second external thread forming block is further embedded in the inner walls of the first conical cavity and the second conical cavity, a second semicircular internal thread hole is formed in the outer wall of the second external thread forming block, and the second semicircular internal thread holes in the two second external thread forming blocks are mutually spliced.

Preferably, move and seted up first step type cavity on the one side inner wall of die cavity, correspondingly, second step type cavity has been seted up on the one side inner wall of die cavity, second step type cavity and first step type cavity splice each other.

Compared with the prior art, the utility model has the advantages of: the utility model discloses not only can form out the external screw thread in regulation position department in the fashioned, can also form out the internal thread that the size is up to standard and the drawing of patterns smoothly in regulation position department, and then can one step production that targets in place and take off the fluidic body finished product, need not to process out the internal thread in the fluidic body with the help of the internal thread machining instrument, both improved production efficiency low, guaranteed the machining precision again in order to reduce the defective rate by a wide margin.

Drawings

FIG. 1 is a front right side exploded view of the present invention;

FIG. 2 is a right rear side exploded view of the present invention;

fig. 3 is a rear structure view of the movable mold insert of the present invention;

fig. 4 is a front structural view of the core insert of the present invention.

Detailed Description

Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by those of ordinary skill in the art to which the invention belongs. The use of "first," "second," and similar terms in the description herein do not denote any order, quantity, or importance, but rather the terms are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.

To keep the following description of the embodiments of the present invention clear and concise, a detailed description of known functions and known parts of the invention has been omitted.

As shown in fig. 1 to 4, an injection mold of a fluidic device comprises a movable mold base 2, a movable mold core 3 embedded inside the rear side of the movable mold base 2, a fixed mold base 4 arranged on the rear side of the movable mold base 2 and mutually matched with the movable mold base 2, and a fixed mold core 9 embedded inside the front side of the fixed mold base 4 and mutually matched with the movable mold core 3; the plastic injection molding machine further comprises a plastic feeding plate 1 fixed on the front side of the movable die holder 2, a bottom plate 6 fixed on the rear side of the fixed die holder 4, and an ejection mechanism 5 arranged between the bottom plate 6 and the fixed die holder 4; advance offset plate 1 and can follow movable mould seat 2 and remove together, after movable mould seat 2 rearward movement agrees with cover half seat 4, movable mould benevolence 3 also amalgamates each other with cover half benevolence 9, then, the melten material enters into movable mould seat 2 via advancing offset plate 1, again enter into between movable mould benevolence 3 and the cover half benevolence 9 via watering in the movable mould seat 2, thereby the shaping goes out two and is the fluidic device body 11 that centrosymmetric set up, wait to cool off the back and push up two fluidic device bodies 11 from cover half benevolence 9 by ejection mechanism 5 forward, above-mentioned principle is prior art, and the utility model discloses a characteristics lie in: the fixed die holder 4 is also provided with two core pulling assemblies 7 which are arranged in a central symmetry manner, and each core pulling assembly 7 comprises a core pulling slide block 71 which is movably connected inside the front side of the fixed die holder 4 and has a transverse moving function, a core pulling cylinder 73 fixed on the outer wall of the fixed die holder 4, and a first core rod 73 and a second core rod 74 which are transversely fixed on the inner side of the core pulling slide block 71; the telescopic end of the core pulling cylinder 73 is transversely arranged and detachably fixed on the core pulling slide block 71; two first internal thread forming assemblies 8 which are arranged in a central symmetry manner are further arranged between the movable die holder 2 and the fixed die holder 4, each first internal thread forming assembly 8 comprises a forming sliding block 81 which is movably connected inside the front side of the fixed die holder 4 and has a vertical moving function, a plurality of forming push rods 82 which are obliquely fixed on the rear side of the movable die holder 2, penetrate through the forming sliding blocks 81 and are sequentially and transversely distributed, a first driven gear 83 which is rotatably connected inside the forming sliding block 81, a first forming shaft 84 which is vertically and concentrically penetrated through the first driven gear 83 and can axially slide along the first driven gear 83, a first forming motor 85 fixed on the outer wall of the fixed die holder 4, a transmission shaft sleeve 86 which is vertically and rotatably penetrated through the fixed die holder 4, and a first driving gear 87 which is sleeved on the transmission shaft sleeve 86, rotatably inserted through the fixed die holder 4 and is meshed with the first driven gear 83; the rotating shaft of the first forming motor 85 is vertically disposed and connected to the outer end of the driving sleeve 86, and a first male screw 841 is formed on the outer circumferential surface of the end of the first forming shaft 84.

An injection mold of a jet body further comprises a second internal thread forming assembly 10, wherein the second internal thread forming assembly 10 comprises a partition plate 101 fixed on the rear side of a bottom plate 6, a cover plate 102 fixed on the rear side of the partition plate 101, a motor frame 103 fixed on the outer wall of the bottom plate 6, a second forming motor 104 fixed on the motor frame 103, a transmission shaft rod 108 transversely and rotatably inserted and connected in the partition plate 101, a driven sprocket 106 sleeved and fixed at the rear end of the transmission shaft rod 108 and interposed between the partition plate 101 and the cover plate 102, a second driving gear 109 sleeved and fixed at the front end of the transmission shaft rod 108 and interposed between the bottom plate 6 and the partition plate 101, a driving sprocket 105 sleeved and fixed on a rotating shaft of the second forming motor 104, a chain 107 sleeved and fixed between the driving sprocket 105 and the driven sprocket 106 and inserted and interposed between the bottom plate 6 and the partition plate 101, two rotatable second driven gears 110 connected between the bottom plate 6 and the partition plate 101 and respectively meshed with the second driving gear 109, and two second forming shafts 111 concentrically fixed in the two second driven gears 110 and respectively and capable of axially sliding along the corresponding second driven gears 110; the end parts of the two second molding shafts 111 respectively penetrate through the bottom plate 6 and the fixed mold base 4 forwards in sequence and respectively extend into the fixed mold core 9, and the outer peripheral surfaces of the end parts of the two second molding shafts 111 are respectively provided with a second external thread part 1111.

Two movable mold cavities 31 which are centrosymmetrically distributed are formed in the rear side of the movable mold core 3, correspondingly, two fixed mold cavities 91 which are centrosymmetrically distributed are formed in the front side of the fixed mold core 9, and the two fixed mold cavities 91 are respectively spliced with the two movable mold cavities 31.

The inner wall of one side of the movable die cavity 31 is provided with a first straight-tube cavity 32 and a first tapered cavity 33, correspondingly, the inner wall of one side of the fixed die cavity 91 is provided with a second straight-tube cavity 92 and a second tapered cavity 93, and the second straight-tube cavity 92 and the second tapered cavity 93 are respectively spliced with the first straight-tube cavity 32 and the first tapered cavity 33.

The inner walls of the first straight-tube concave cavity 32 and the second straight-tube concave cavity 92 are respectively embedded with a first external thread forming block 13, the outer wall of each first external thread forming block 13 is provided with a first semicircular internal thread hole 131, and the first semicircular internal thread holes 131 in the two first external thread forming blocks 13 are spliced with each other; a second external thread forming block 12 is also embedded on the inner walls of the first conical cavity 33 and the second conical cavity 93, a second semicircular internal thread hole 121 is formed in the outer wall of the second external thread forming block 12, and the second semicircular internal thread holes 121 in the two second external thread forming blocks 12 are mutually spliced.

The inner wall of one side of the movable die cavity 31 is provided with a first step-shaped cavity 34, correspondingly, the inner wall of one side of the fixed die cavity 91 is provided with a second step-shaped cavity 94, and the second step-shaped cavity 94 and the first step-shaped cavity 34 are mutually spliced.

The working principle is as follows: when the movable die base 2 moves backwards towards the direction of the fixed die base 4, each forming push rod 82 moves backwards at the moment, and each forming slide block 81 is forced to move towards the direction of the fixed die core 9, so that the end part of each first forming shaft 84 extends into a position between a corresponding first stepped cavity 34 and a corresponding second stepped cavity 94; when the movable mold base 2 and the fixed mold base 4 are fitted with each other, the telescopic end of the core pulling cylinder 73 in each core pulling assembly 7 is driven to extend outwards to push the core pulling slider 71 to move towards the direction of the fixed mold core 9, so that each first core rod 73 extends into a position between a corresponding first conical cavity 33 and a corresponding second conical cavity 93, and each second core rod 74 extends into a position between a corresponding first straight cylinder cavity 32 and a corresponding second straight cylinder cavity 92.

After the fluidic device body 11 is molded, the first molding shaft 84 cannot be pulled out because the first external thread portion 841 is wrapped in the fluidic device body 11, and the second molding shaft 111 cannot be pulled out because the second external thread portion 1111 is also wrapped in the fluidic device body 11, so that before the movable mold base 2 leaves the fixed mold base 4, the first molding motor 85 in each first internal thread molding assembly 8 needs to be started to rotate the rotating shaft thereof, and then the first driving gear 87 is driven to rotate by the transmission shaft sleeve 86, so that the first molding shaft 84 is driven to reversely rotate in the fluidic device body 11 by the first driven gear 83, and further, the first molding shaft 84 can smoothly and spirally pull out from the molded internal thread hole by virtue of the characteristic that the first external thread portion 841 can axially slide in the first driven gear 83; similarly, before the movable mold base 2 leaves the fixed mold base 4, the second molding motor 104 in the second internal thread molding assembly 10 needs to be started to rotate the rotating shaft thereof, and further the driving sprocket 105 and the chain 107 drive the driven sprocket 106 and the transmission shaft 108 to rotate together, so that the second driving gear 109 drives the two second driven gears 110 to rotate, and further drives the two second molding shafts 111 to rotate in opposite directions in the jet body 11, and thus the second molding shafts 111 can smoothly screw out from the molded internal thread holes by virtue of the characteristic that the second molding shafts 111 can slide in the second driven gears 110 along the axial direction; thereafter, the movable die holder 2 can be driven to move forward to leave the fixed die holder 4, and each forming slide block 81 moves in a direction away from the fixed die core 9 according to the same principle; and finally, ejecting the two fluidic device bodies 11 outwards through the ejection mechanism 5.

The utility model discloses not only can form out the external screw thread in regulation position department in the fashioned, can also form out the internal thread that the size is up to standard and the drawing of patterns smoothly in regulation position department, and then can one step production that targets in place and take off the fluidic body finished product, need not to process out the internal thread in the fluidic body with the help of the internal thread machining instrument, both improved production efficiency low, guaranteed the machining precision again in order to reduce the defective rate by a wide margin.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those skilled in the art that various changes in the embodiments and modifications thereof may be made, and equivalents may be substituted for elements thereof; such modifications or substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims (7)

1. An injection mold of a fluidic device comprises a movable mold base, a movable mold core embedded in the rear side of the movable mold base, a fixed mold base arranged on the rear side of the movable mold base and matched with the movable mold base, and a fixed mold core embedded in the front side of the fixed mold base and matched with the movable mold core; the core pulling mechanism is characterized in that the fixed die holder is also provided with two core pulling assemblies which are arranged in a central symmetry manner, each core pulling assembly comprises a core pulling slide block which is movably connected inside the front side of the fixed die holder and has a transverse moving function, a core pulling cylinder fixed on the outer wall of the fixed die holder, and a first core rod and a second core rod which are transversely fixed on the inner side of the core pulling slide block; the telescopic end of the core pulling cylinder is transversely arranged and detachably fixed on the core pulling slide block; two first internal thread forming assemblies which are arranged in a central symmetry manner are further arranged between the movable die holder and the fixed die holder, each first internal thread forming assembly comprises a forming slide block which is movably connected inside the front side of the fixed die holder and has a vertical moving function, a plurality of forming push rods which are obliquely fixed on the rear side of the movable die holder and are all inserted into the forming slide blocks and are sequentially and transversely distributed, a first driven gear which is rotatably connected to the inner side of the forming slide block, a first forming shaft which is vertically and concentrically inserted into the first driven gear and can slide along the axial direction of the first driven gear, a first forming motor which is fixed on the outer wall of the fixed die holder, a transmission shaft sleeve which is vertically and rotatably inserted into the fixed die holder, and a first driving gear which is sleeved on the transmission shaft sleeve, rotatably inserted into the fixed die holder and is meshed with the first driven gear; the rotating shaft of the first forming motor is vertically arranged and connected with the outer end of the transmission shaft sleeve, and a first external thread part is formed on the outer peripheral surface of the end part of the first forming shaft.

2. The injection mold of a fluidic device according to claim 1, further comprising a second internal thread forming assembly, wherein the second internal thread forming assembly comprises a partition plate fixed at the rear side of the bottom plate, a cover plate fixed at the rear side of the partition plate, a motor frame fixed on the outer wall of the bottom plate, a second forming motor fixed on the motor frame, a transmission shaft rod transversely and rotatably inserted and connected in the partition plate, a driven sprocket sleeved and fixed at the rear end of the transmission shaft rod and between the partition plate and the cover plate, a second driving gear sleeved and fixed at the front end of the transmission shaft rod and between the bottom plate and the partition plate, a driving sprocket sleeved and fixed on a rotating shaft of the second forming motor, a chain sleeved and arranged between the driving sprocket and the driven sprocket and inserted and arranged between the bottom plate and the partition plate, two second driven gears rotatably connected between the bottom plate and the partition plate and mutually meshed with the second driving gears, and two second forming shafts respectively concentrically fixed in the two second driven gears and capable of sliding in the axial direction along the corresponding second driven gears; the end parts of the two second forming shafts penetrate through the bottom plate and the fixed die base forwards in sequence and extend into the fixed die core, and a second external thread part is formed on the outer peripheral surface of the end part of each of the two second forming shafts.

3. The injection mold of the fluidic device according to claim 2, wherein the back side of the movable mold core is provided with two movable mold cavities distributed centrosymmetrically, correspondingly, the front side of the fixed mold core is provided with two fixed mold cavities distributed centrosymmetrically, and the two fixed mold cavities are respectively spliced with the two movable mold cavities.

4. An injection mold of a fluidic device according to claim 3, wherein the inner wall of one side of the dynamic mold cavity is provided with a first straight cavity and a first tapered cavity, and correspondingly, the inner wall of one side of the static mold cavity is provided with a second straight cavity and a second tapered cavity, and the second straight cavity and the second tapered cavity are respectively spliced with the first straight cavity and the first tapered cavity.

5. The injection mold of the fluidic device according to claim 4, wherein the inner walls of the first straight cylinder cavity and the second straight cylinder cavity are respectively embedded with a first external thread forming block, the outer wall of the first external thread forming block is provided with a first semicircular internal thread hole, and the first semicircular internal thread holes on the two first external thread forming blocks are mutually spliced.

6. The injection mold of the fluidic device according to claim 5, wherein a second external thread forming block is embedded in each of the inner walls of the first conical cavity and the second conical cavity, a second semicircular internal thread hole is formed in the outer wall of each second external thread forming block, and the second semicircular internal thread holes in the two second external thread forming blocks are spliced with each other.

7. The injection mold of the fluidic device according to claim 6, wherein a first step-shaped cavity is formed in an inner wall of one side of the movable mold cavity, and correspondingly, a second step-shaped cavity is formed in an inner wall of one side of the fixed mold cavity, and the second step-shaped cavity and the first step-shaped cavity are spliced with each other.

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