CN113334684B

CN113334684B - Cold water circulation type precision injection molding production equipment and machining process thereof

Info

Publication number: CN113334684B
Application number: CN202110596225.8A
Authority: CN
Inventors: 张宇成
Original assignee: Shunde District Foshan Jie Run Hardware Plastic Co ltd
Current assignee: Shunde District Foshan Jie Run Hardware Plastic Co ltd
Priority date: 2021-05-30
Filing date: 2021-05-30
Publication date: 2023-04-11
Anticipated expiration: 2041-05-30
Also published as: CN113334684A

Abstract

The invention discloses cold water circulation type precision injection molding production equipment and a processing technology thereof, and the cold water circulation type precision injection molding production equipment comprises a base and a first vertical plate, wherein the first vertical plate is fixedly connected to the left side and the right side of the upper surface of the base; this production facility cools off the work piece in the stationary mold through cold water circulating device, and the shaping accelerates, and cold water circulation reduces the waste of water resource, and conveniently dismantles inlet tube, outlet pipe through setting up latch device.

Description

Cold water circulation type precision injection molding production equipment and machining process thereof

Technical Field

The invention relates to the technical field of injection molding production, in particular to cold water circulation type precision injection molding production equipment.

Background

The injection molding part is a general injection molding part of various injection molding products produced by an injection molding machine, and comprises various packages, parts and the like, wherein the injection molding part is mainly made of materials such as polyethylene or polypropylene and is added with various organic solvents.

Disclosure of Invention

The invention aims to provide cold water circulation type precision injection molding part production equipment to solve the problems that injection molding parts in the prior art are poor in fixing effect, low in stability and free of circulation cooling function, and are provided in the background art.

In order to achieve the purpose, the invention provides the following technical scheme: a production device of precision injection molding parts comprises a base and a first vertical plate, wherein the first vertical plate is fixedly connected to the left side and the right side of the upper surface of the base, a cold water circulating device is arranged on one side of the first vertical plate, and the cold water circulating device comprises a cold water tank, a water pump, a water outlet pipe, a water inlet pipe, a spiral groove and a connecting hole;

the cold water tank is arranged at the upper end of the base, the outer wall of the fixed die is provided with a spiral groove, the periphery of the fixed die is provided with connecting holes communicated with the upper end and the lower end of the spiral groove, the water inlet pipe is communicated with the upper end connecting hole through a clamping device, the water outlet pipe is communicated with the lower end connecting hole through a clamping device, and the middle section of the water inlet pipe is provided with a water pump;

the clamping device comprises a bearing, a ring plate, an inserting rod, an arc plate, a pressing spring, a pressing plate, an arc groove, a ring groove and an inserting hole;

the inlet tube is kept away from the fixed cover of cold water storage cistern one end and is equipped with the bearing, the fixed cover of crown plate is established in the bearing outside, the fixed jack of having seted up in crown plate upper and lower end, it is provided with the inserted bar to slide in the jack, inserted bar one end fixedly connected with clamp plate, its other end fixedly connected with arc, decide the mould lateral wall and seted up arc, annular, arc and annular intercommunication, the arc passes arc and annular joint, the inserted bar is located one section cover of clamp plate and crown plate and is equipped with compression spring.

Preferably, the inner wall of the connecting hole is provided with a rubber pad, and the outer wall of the water inlet pipe is tightly attached to the rubber pad.

Preferably, an injection molding device is installed above the inner side of the first vertical plate;

the injection molding device comprises a first transverse plate, a first support plate, a fixed mold, a first trapezoidal plate, a vertical rod and an arc-shaped block;

the left and right sides outer wall of first diaphragm links to each other with the inboard outer wall of first riser is fixed, the equal rigid coupling in the lower surface left and right sides of first diaphragm has first extension board, controls the outside below outer wall of first extension board links to each other with the riser is fixed, install the cover half in the middle of the upper surface of first diaphragm, install first trapezoidal plate in the middle of the inside of cover half, the outer wall of first trapezoidal plate closely laminates with the inner wall of cover half, the lower surface rigid coupling of first trapezoidal plate has a plurality of montants, the outer wall of montant respectively with the through-hole department inner wall clearance fit of cover half and first diaphragm, the lower surface rigid coupling of montant has the arc piece.

Preferably, the vertical rod and the first trapezoidal plate are arranged vertically.

Preferably, a fixing device is installed on the outer side of the fixed die;

the fixing device comprises a second support plate, a second trapezoidal plate, an L-shaped plate, a first concave plate, a first connecting rod, a motor and a second vertical plate;

control the inboard of second extension board links to each other with the outer wall of fixed die is fixed, the inside top processing of second extension board is fluted, the groove of second extension board is installed the second trapezoidal plate, the below outer wall of second trapezoidal plate and the groove inner wall clearance fit of second extension board, the top of second trapezoidal plate is rotated through the pivot and is connected with the L shaped plate, the inside processing of L shaped plate has the spout, the outside of L shaped plate is rotated through the pivot and is connected with first notch plate, the outside of first notch plate links to each other with the first riser is fixed, first connecting rod is installed to the preceding terminal surface of L shaped plate, the rear end face top processing of first connecting rod has the slider, the slider department outer wall of first connecting rod and the spout department inner wall clearance fit of L shaped plate, the motor is installed to the rear end face below of first connecting rod, the output shaft of motor links to each other with the first connecting rod is fixed, the rear end face outer wall rigid coupling of motor has the second riser, the outside and the first riser are fixed and link to each other.

Preferably, the first connecting rod and the L-shaped plate form a sliding structure.

Preferably, an elastic device is arranged above the base;

the elastic device comprises a second transverse plate, an arc-shaped baffle, a first spring, a convex rod, a second spring, a second connecting rod, a rotating wheel and a second concave plate;

control the lower surface of second diaphragm links to each other with the base is fixed, the inboard top of second diaphragm is rotated through the pivot and is connected with cowl, first spring is installed to cowl's outside below, the top and bottom outer wall of first spring links to each other with cowl and second diaphragm are fixed respectively, cowl's inboard top outer wall department installs the convex pole, controls the inboard of convex pole is equipped with a plurality of second springs, controls the both sides of second spring are rotated through the pivot and are connected with the second connecting rod, the rear end face top of second connecting rod is rotated through the pivot and is connected with the runner, the outer wall of runner is laminated mutually with the outer wall of arc piece, the below of second connecting rod is rotated through the pivot and is connected with the second concave plate, the lower surface of second concave plate links to each other with the base is fixed.

Preferably, the adjacent second connecting rods are symmetrically distributed by taking the middle point of the arc-shaped block as the center.

A machining process of an injection molding part specifically comprises the following steps:

s1, firstly, an operator holds the second trapezoidal plate, an external power supply of a motor is switched on, the motor is started, an output shaft of the motor drives a first connecting rod to rotate, the first connecting rod drives an L-shaped plate to rotate downwards at a first concave plate through a sliding block, so that the L-shaped plate drives the second trapezoidal plate to move downwards, the second trapezoidal plate enters a groove of a second support plate, and the fixed die is fixed through the second support plate;

s2, secondly, aim at the connecting hole with inlet tube and outlet pipe, rolling bearing drives the ring plate and rotates, makes the arc aim at the arc, loosens the hand, and under the pressure spring elastic action, the arc passes through the arc and gets into in the annular, and rolling bearing drives inserted bar, arc rotation once more, and the chucking annular is fixed with inlet tube, outlet pipe and is communicate with the helicla flute, draws water, cools off starting the water pump.

S3, when the injection molding piece is produced by the fixed mold, the first trapezoidal plate is extruded through external equipment, the first trapezoidal plate drives the arc block to move downwards through the vertical rod, the arc block extrudes the rotating wheel, the rotating wheel drives the second connecting rod to rotate outwards, the second connecting rod stretches the second spring, the second spring is elastically deformed, meanwhile, the second connecting rod extrudes the arc baffle through the convex rod, the arc baffle extrudes the first spring, and the first spring is elastically deformed;

and S4, after injection molding is finished, the first trapezoidal plate can eject the injection molding piece through the elastic force performance of the first spring and the second spring.

Compared with the prior art, the invention has the beneficial effects that: according to the production equipment of the precise injection molding part, the water inlet pipe and the water outlet pipe are aligned to the connecting hole through mutual matching of the cold water tank, the water pump, the water outlet pipe, the water inlet pipe, the spiral groove and the connecting hole, the water inlet pipe and the water outlet pipe are fixedly communicated with the connecting hole and the spiral groove, the water pump is started to pump water, so that the water in the cold water tank flows into the spiral pipe, a workpiece in a fixed mold is cooled, the molding is accelerated, and the waste of water resources is reduced through cold water circulation;

through the mutual cooperation between the bearing, the ring plate, the inserted link, the arc plate, the pressure spring, the pressure plate, the arc groove, the ring groove and the jack, the water inlet pipe and the water outlet pipe are aligned to the connecting hole, the bearing is rotated to drive the ring plate to rotate, so that the arc plate is aligned to the arc groove, the hand is loosened, under the elastic force action of the pressure spring, the arc plate enters the ring groove through the arc groove, the bearing is rotated again to drive the inserted link and the arc plate to rotate, the ring groove is clamped, the water inlet pipe and the water outlet pipe are fixed, and when a fixed die is cleaned and replaced, the water inlet pipe and the water outlet pipe are convenient to disassemble;

through the mutual matching of the second support plate, the second trapezoidal plate, the L-shaped plate, the first concave plate, the first connecting rod, the motor, the second vertical plate and the like, the first connecting rod can be driven by the motor to rotate, the first connecting rod drives the L-shaped plate to rotate, and the L-shaped plate drives the second trapezoidal plate to enter the groove of the second support plate, so that the fixed die is abutted and fixed;

through the mutual matching of the first transverse plate, the first support plate, the fixed die, the first trapezoidal plate, the vertical rod, the arc-shaped block and the like, after the injection molding is finished, the arc-shaped block can drive the first trapezoidal plate to move through the vertical rod, so that the injection molded part is ejected out by the first trapezoidal plate;

through the mutual matching among the structures such as the second spring, the second connecting rod, the rotating wheel and the second concave plate, when the convex block moves downwards, the convex block can extrude the second connecting rod through the rotating wheel, so that the second connecting rod stretches the second spring, and the arc block can be reset when not stressed through the elastic performance of the second spring;

through mutually supporting between second diaphragm, cowl, first spring, the convex pole isotructure, when the second connecting rod rotates, the second connecting rod can extrude the cowl through the convex pole, makes cowl extrude first spring to elasticity performance through first spring can make first trapezoidal plate more stable that removes when reseing.

Drawings

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

FIG. 2 is a schematic view of the first trapezoidal plate, the stationary mold and the vertical rod of FIG. 1;

FIG. 3 is a schematic view of the structure of the motor, the first notch plate and the L-shaped plate of FIG. 1;

FIG. 4 is a schematic view of the structure of FIG. 1 at the location of the arcuate block, the first support plate and the male bar;

FIG. 5 is a schematic view of the structure of the wheel, the second connecting rod and the vertical rod in FIG. 1;

fig. 6 is a schematic view of the structure of fig. 1 at the first riser, the curved baffle, and the second cross plate;

FIG. 7 is a side view of the present invention;

FIG. 8 is an enlarged view of A in FIG. 7;

FIG. 9 is a schematic view of the structure of the bayonet and the arcuate plate of FIG. 7;

FIG. 10 is a schematic side view of the arc-shaped groove and the ring groove of FIG. 7;

in the figure: 1. a base; 2. a first vertical plate; 3. an injection molding device; 301. a first transverse plate; 302. a first support plate; 303. fixing a mold; 304. a first trapezoidal plate; 305. a vertical rod; 306. an arc-shaped block; 4. a fixing device; 401. a second support plate; 402. a second trapezoidal plate; 403. an L-shaped plate; 404. a first concave plate; 405. a first link; 406. a motor; 407. a second vertical plate; 5. an elastic device; 501. a second transverse plate; 502. an arc-shaped baffle plate; 503. a first spring; 504. a male rod; 505. a second spring; 506. a second link; 507. a rotating wheel; 508. a second concave plate; 601. a cold water tank; 602. a water pump; 603. a water outlet pipe; 604. a water inlet pipe; 605. a helical groove; 606. connecting holes; 607. a rubber pad; 701. a bearing; 702. a ring plate; 703. a rod is inserted; 704. an arc-shaped plate; 705. a compression spring; 706. pressing a plate; 707. an arc-shaped slot; 708. a ring groove; 709. and (4) inserting the jack.

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. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1:

referring to fig. 1, 6-10, the present invention provides a technical solution: the utility model provides an accurate injection molding production facility, including base 1 and first riser 2, the equal rigid coupling in base 1's the upper surface left and right sides has

first riser

2, 2 one sides of first riser are provided with cold water circle device, cold water circle device includes cold water tank 601, water pump 602, outlet pipe 603, inlet tube 604, helicla flute 605, connecting hole 606, cold water tank 601 is installed in the base 1 upper end, helicla flute 605 has been seted up to fixed mould 303 outer wall, fixed mould 303 week side set up with helicla flute 605 upper and lower end intercommunication connecting hole 606, inlet tube 604 passes through latch device and upper end connecting hole 606 intercommunication, outlet pipe 603 passes through latch device and lower extreme connecting hole 606 intercommunication, the inlet tube 604 middle section is provided with water pump 602, connecting hole 606 inner wall is provided with rubber pad 607, the inlet tube 604 outer wall closely laminates with rubber pad 607.

The clamping device comprises a bearing 701, a ring plate 702, an inserted bar 703, an arc plate 704, a compression spring 705, a pressure plate 706, an arc groove 707, a ring groove 708 and a jack 709, wherein the bearing 701 is fixedly arranged at one end, away from the cold water tank 601, of the water inlet pipe 604, the ring plate 702 is fixedly arranged on the outer side of the bearing 701, the jack 709 is fixedly arranged at the upper end and the lower end of the ring plate 702, the inserted bar 703 is arranged in the jack 709 in a sliding mode, one end of the inserted bar 703 is fixedly connected with the pressure plate 706, the other end of the inserted bar is fixedly connected with the arc plate 704, the arc groove 707 and the ring groove 708 are formed in the side wall of the fixed die 303, the arc groove 707 is communicated with the ring groove 708, the arc plate 704 penetrates through the arc groove 707 to be clamped with the ring groove 708, and the compression spring 705 is sleeved at one section of the inserted bar 703, which is located between the pressure plate 706 and the ring plate 702.

Example 2:

referring to fig. 1-6, on the basis of embodiment 1, an injection molding device 3 is installed above the inner side of a first vertical plate 2, the injection molding device 3 includes a first horizontal plate 301, a first support plate 302, a fixed mold 303, a first trapezoidal plate 304, a vertical rod 305 and an arc block 306, the outer walls of the left and right sides of the first horizontal plate 301 are fixedly connected with the outer wall of the inner side of the first vertical plate 2, 2 through holes are processed inside the first horizontal plate 301, the first support plate 302 is fixedly connected to the left and right sides of the lower surface of the first horizontal plate 301, the outer walls of the outer sides of the left and right first support plates 302 are fixedly connected with the first vertical plate 2, the fixed mold 303 is installed in the middle of the upper surface of the first horizontal plate 301, 2 through holes are processed inside the lower portion of the fixed mold 303, the first trapezoidal plate 304 is installed in the middle of the inner portion of the fixed mold 303, the outer wall of the first trapezoidal plate 304 is tightly attached to the inner wall of the fixed mold 303, the lower surface of the first trapezoidal plate 304 is fixedly connected with 2 vertical rods 305, the outer wall of the vertical rod 305 is respectively matched with the inner wall of the through gap of the through the arc block 306, the first trapezoidal plate 306, the arc block 306 is vertically movable vertical rod 305,

the outer side of the fixed mold 303 is provided with a fixing device 4, the fixing device 4 comprises a second support plate 401, a second trapezoidal plate 402, an L-shaped plate 403, a first concave plate 404, a first connecting rod 405, a motor 406 and a second vertical plate 407, the inner sides of the left and right second support plates 401 are fixedly connected with the outer wall of the fixed mold 303, a groove is processed on the upper portion of the inside of the second support plate 401, the groove of the second support plate 401 is provided with the second trapezoidal plate 402, the outer wall of the lower portion of the second trapezoidal plate 402 is in clearance fit with the inner wall of the groove of the second support plate 401, the second trapezoidal plate 402 can fix the fixed mold 303 through the second support plate 401, the upper portion of the second trapezoidal plate 402 is rotatably connected with the L-shaped plate 403 through a rotating shaft, a chute is processed inside the L-shaped plate 403, the outside of L shaped plate 403 rotates through the pivot and is connected with first concave plate 404, the outside and the first riser 2 of first concave plate 404 are fixed to link to each other, first connecting rod 405 is installed to the preceding terminal surface of L shaped plate 403, the rear end face top processing of first connecting rod 405 has the slider, the slider department outer wall of first connecting rod 405 and the spout department inner wall clearance fit of L shaped plate 403, first connecting rod 405 can drive L shaped plate 403 through the slider and rotate, motor 406 is installed to the rear end face below of first connecting rod 405, the model of motor 406 is 3GB-555, the output shaft of motor 406 is fixed continuous with first connecting rod 405, the rear end face outer wall rigid coupling of motor 406 has second riser 407, the outside and the first riser 2 of second riser 407 are fixed to be continuous, first connecting rod 405 constitutes sliding construction with L shaped plate 403.

An elastic device 5 is arranged above the base 1, the elastic device 5 comprises a second transverse plate 501, an arc-shaped baffle plate 502, a first spring 503, a convex rod 504, a second spring 505, a second connecting rod 506, a rotating wheel 507 and a second concave plate 508, the lower surfaces of the left and right second transverse plates 501 are fixedly connected with the base 1, the upper part of the inner side of the second transverse plate 501 is rotatably connected with the arc-shaped baffle plate 502 through a rotating shaft, the first spring 503 is arranged below the outer side of the arc-shaped baffle plate 502, the upper outer wall and the lower outer wall of the first spring 503 are respectively fixedly connected with the arc-shaped baffle plate 502 and the second transverse plate 501, when the arc-shaped baffle plate 502 rotates outwards, the first spring 503 is in a compressed state, the convex rod 504 is arranged on the outer wall of the upper part of the inner side of the arc-shaped baffle plate 502, convex pole 504 can drive cowl 502 and rotate, the inboard of controlling convex pole 504 is equipped with 2 second springs 505, the both sides of controlling second spring 505 are rotated through the pivot and are connected with second connecting rod 506, second spring 505 is in tensile state when second connecting rod 506 rotates to the outside, the rear end face top of second connecting rod 506 rotates through the pivot and is connected with runner 507, the outer wall of runner 507 laminates with the outer wall of arc piece 306 mutually, arc piece 306 can extrude runner 507, the below of second connecting rod 506 rotates through the pivot and is connected with second concave plate 508, the lower surface and the base 1 of second concave plate 508 are fixed continuous, adjacent second connecting rod 506 uses the mid point of arc piece 306 to be the symmetric distribution as the center.

When an operator needs to use precision injection molding piece production equipment, firstly, the operator holds the second trapezoidal plate 402, the external power supply of the motor 406 is switched on, the motor 406 is started, the output shaft of the motor 406 drives the first connecting rod 405 to rotate, the first connecting rod 405 drives the L-shaped plate 403 to rotate downwards at the first concave plate 404 through the sliding block, so that the L-shaped plate 404 drives the second trapezoidal plate 402 to move downwards, so that the second trapezoidal plate 402 enters the groove of the second support plate 401, and the fixed mold 303 is fixed by the second support plate 401, secondly, aligning the water inlet pipe 604 and the water outlet pipe 603 with the connecting hole 606, rotating the bearing 701 to drive the ring plate 702 to rotate, aligning the arc plate 704 with the arc groove 707, loosening hands, under the action of the elastic force of the pressing spring 705, the arc-shaped plate 704 enters the annular groove 708 through the arc-shaped groove 707, the bearing 701 is rotated again to drive the inserted rod 703 and the arc-shaped plate 704 to rotate, the annular groove 708 is clamped, the water inlet pipe 604 and the water outlet pipe 603 are fixedly communicated with the spiral groove 605, when the water pump 602 is started to pump water, and when the injection molding piece is produced by the fixed mold 303, the first trapezoidal plate 304 is extruded by external equipment, so that the first trapezoidal plate 304 drives the arc-shaped block 306 to move downwards through the vertical rod 305, the arc-shaped block 306 extrudes the rotating wheel 507, the rotating wheel 507 drives the second connecting rod 506 to rotate outwards, the second connecting rod 506 stretches the second spring 505, so that the second spring 505 elastically deforms, meanwhile, the second connecting rod 506 extrudes the arc-shaped baffle 502 through the convex rod 504, so that the arc-shaped baffle 502 extrudes the first spring 503, the first spring 503 is elastically deformed, after the injection molding is completed, the first trapezoidal plate 304 can eject the injection molding piece through the elastic properties of the first spring 503 and the second spring 505, so that the purpose of improving the using effect of the device is achieved.

In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "both ends", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

In the present invention, unless otherwise explicitly stated or limited, the terms "mounted," "disposed," "connected," "fixed," "screwed" and the like are to be understood broadly, for example, as being fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; the terms may be directly connected or indirectly connected through an intermediate, and may be communication between two elements or interaction relationship between two elements, unless otherwise specifically limited, and the specific meaning of the terms in the present invention will be understood by those skilled in the art according to specific situations.

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 cold water circulating type precision injection molding production facility, includes base (1) and first riser (2), the equal rigid coupling in upper surface left and right sides of base (1) has first riser (2), its characterized in that: a cold water circulating device is arranged on one side of the first vertical plate (2), and comprises a cold water tank (601), a water pump (602), a water outlet pipe (603), a water inlet pipe (604), a spiral groove (605) and a connecting hole (606);

the water cooling tank (601) is installed at the upper end of the base (1), the outer wall of the fixed die (303) is provided with a spiral groove (605), the periphery of the fixed die (303) is provided with connecting holes (606) communicated with the upper end and the lower end of the spiral groove (605), the water inlet pipe (604) is communicated with the upper end connecting hole (606) through a clamping device, the water outlet pipe (603) is communicated with the lower end connecting hole (606) through the clamping device, and the middle section of the water inlet pipe (604) is provided with a water pump (602);

the clamping device comprises a bearing (701), a ring plate (702), an inserted link (703), an arc plate (704), a compression spring (705), a pressure plate (706), an arc groove (707), a ring groove (708) and an inserting hole (709);

a bearing (701) is fixedly sleeved at one end, far away from the cold water tank (601), of the water inlet pipe (604), the ring plate (702) is fixedly sleeved outside the bearing (701), insertion holes (709) are fixedly formed in the upper end and the lower end of the ring plate (702), insertion rods (703) are arranged in the insertion holes (709) in a sliding mode, one end of each insertion rod (703) is fixedly connected with a pressing plate (706), the other end of each insertion rod is fixedly connected with an arc-shaped plate (704), an arc-shaped groove (707) and a ring groove (708) are formed in the side wall of the fixed die (303), the arc-shaped groove (707) is communicated with the ring groove (708), the arc-shaped plate (704) penetrates through the arc-shaped groove (707) to be clamped with the ring groove (708), and a section of a pressing spring (705) is sleeved on the pressing plate (706) and the ring plate (702) of the insertion rods (703);

an injection molding device (3) is mounted above the inner side of the first vertical plate (2), and the injection molding device (3) comprises a first transverse plate (301), a first supporting plate (302), a fixed mold (303), a first trapezoidal plate (304), a vertical rod (305) and an arc-shaped block (306);

the outer walls of the left side and the right side of the first transverse plate (301) are fixedly connected with the outer wall of the inner side of the first vertical plate (2), the left side and the right side of the lower surface of the first transverse plate (301) are fixedly connected with first support plates (302), the outer wall of the lower portion of the outer side of each first support plate (302) is fixedly connected with the first vertical plate (2), a fixed die (303) is installed in the middle of the upper surface of the first transverse plate (301), a first trapezoidal plate (304) is installed in the middle of the inside of the fixed die (303), the outer wall of the first trapezoidal plate (304) is tightly attached to the inner wall of the fixed die (303), a plurality of vertical rods (305) are fixedly connected to the lower surface of the first trapezoidal plate (304), the outer walls of the vertical rods (305) are in clearance fit with the inner walls of through holes of the fixed die (303) and the first transverse plate (301), and arc-shaped blocks (306) are fixedly connected to the lower surfaces of the vertical rods (305);

a fixing device (4) is arranged on the outer side of the fixed die (303);

the fixing device (4) comprises a second support plate (401), a second trapezoidal plate (402), an L-shaped plate (403), a first concave plate (404), a first connecting rod (405), a motor (406) and a second vertical plate (407);

the inner side of a left support plate (401) and the inner side of a right support plate (401) are fixedly connected with the outer wall of a fixed die (303), a groove is formed in the upper portion of the inner portion of the second support plate (401), a second trapezoidal plate (402) is installed in the groove of the second support plate (401), the outer wall of the lower portion of the second trapezoidal plate (402) is in clearance fit with the inner wall of the groove of the second support plate (401), an L-shaped plate (403) is rotatably connected to the upper portion of the second trapezoidal plate (402) through a rotating shaft, a sliding groove is formed in the inner portion of the L-shaped plate (403), a first concave plate (404) is rotatably connected to the outer side of the L-shaped plate (403) through a rotating shaft, the outer side of the first concave plate (404) is fixedly connected with a first vertical plate (2), a first connecting rod (405) is installed on the front end face of the L-shaped plate (403), a sliding block is machined on the upper portion of the rear end face of the first connecting rod (405), the outer wall of the sliding block of the first connecting rod (405) is in clearance fit with the inner wall of the sliding groove of the L-shaped plate (403), a sliding groove is installed on the lower portion of the rear end face of the first connecting rod (405), an output shaft (407), the motor (407), the outer wall of the motor (406) is fixedly connected with the second connecting rod (407), and the outer wall of the motor (406), and the second connecting rod (407);

an elastic device (5) is arranged above the base (1);

the elastic device (5) comprises a second transverse plate (501), an arc-shaped baffle (502), a first spring (503), a convex rod (504), a second spring (505), a second connecting rod (506), a rotating wheel (507) and a second concave plate (508);

control the lower surface of second diaphragm (501) is fixed continuous with base (1), the inboard top of second diaphragm (501) is rotated through the pivot and is connected with cowl (502), first spring (503) are installed to the outside below of cowl (502), the top and bottom outer wall of first spring (503) is fixed continuous with cowl (502) and second diaphragm (501) respectively, the inboard top outer wall department of cowl (502) installs convex pole (504), controls the inboard of convex pole (504) is equipped with a plurality of second springs (505), controls the both sides of second spring (505) are rotated through the pivot and are connected with second connecting rod (506), the rear end face top of second connecting rod (506) is rotated through the pivot and is connected with runner (507), the outer wall of runner (507) is laminated with the outer wall of arc piece (306), the below of second connecting rod (506) is rotated through the pivot and is connected with second concave plate (508), the lower surface of second concave plate (508) is fixed continuous with base (1).

2. The production equipment of the cold water circulation type precision injection molding part according to claim 1, characterized in that: the inner wall of the connecting hole (606) is provided with a rubber pad (607), and the outer wall of the water inlet pipe (604) is tightly attached to the rubber pad (607).

3. The production equipment of the cold water circulation type precision injection molding part according to claim 1, characterized in that: the vertical rod (305) and the first trapezoidal plate (304) are arranged vertically.

4. The production equipment of the cold water circulation type precision injection molding part according to claim 1, characterized in that: the first connecting rod (405) and the L-shaped plate (403) form a sliding structure.

5. The production equipment of the cold water circulation type precision injection molding part according to claim 1, characterized in that: the adjacent second connecting rods (506) are symmetrically distributed by taking the middle point of the arc-shaped block (306) as the center.

6. The machining process of the injection molding part of the cold water circulation type precision injection molding part production equipment according to claim 1, characterized in that: the method specifically comprises the following steps:

s1, firstly, an operator holds the second trapezoidal plate (402), an external power supply of a motor (406) is switched on, the motor (406) is started, an output shaft of the motor (406) drives a first connecting rod (405) to rotate, the first connecting rod (405) drives an L-shaped plate (403) to rotate downwards at a first concave plate (404) through a sliding block, and therefore the L-shaped plate (404) drives the second trapezoidal plate (402) to move downwards, the second trapezoidal plate (402) enters a groove of a second support plate (401), and the fixed die (303) is fixed through the second support plate (401);

s2, secondly, aligning the water inlet pipe (604) and the water outlet pipe (603) to a connecting hole (606), rotating a bearing (701), driving a ring plate (702) to rotate, aligning the arc plate (704) to an arc groove (707), loosening hands, under the elastic action of a compression spring (705), enabling the arc plate (704) to enter a ring groove (708) through the arc groove (707), rotating the bearing (701) again, driving an inserted rod (703) and the arc plate (704) to rotate, clamping the ring groove (708), fixing the water inlet pipe (604) and the water outlet pipe (603) to be communicated with a spiral groove (605), and pumping water and cooling when a water pump (602) is started;

s3, when the fixed die (303) is used for producing injection molding parts, the first trapezoidal plate (304) is extruded through external equipment, the first trapezoidal plate (304) drives the arc-shaped blocks (306) to move downwards through the vertical rods (305), the arc-shaped blocks (306) extrude the rotating wheel (507), the rotating wheel (507) drives the second connecting rod (506) to rotate outwards, the second connecting rod (506) stretches the second spring (505), the second spring (505) generates elastic deformation, meanwhile, the second connecting rod (506) extrudes the arc-shaped baffle (502) through the convex rod (504), the arc-shaped baffle (502) extrudes the first spring (503), and the first spring (503) generates elastic deformation;

s4, after the injection molding is finished, the first trapezoidal plate (304) can eject the injection molding piece through the elastic force performance of the first spring (503) and the second spring (505).