Automobile plastic part mold

Abstract

The utility model discloses an automobile plastic part mold, and particularly relates to the technical field of automobile plastic parts, which comprises a base assembly, a main body assembly is arranged above the base assembly, and a bottom mold assembly is arranged between the main body assembly and the base assembly. According to the automobile plastic part mold, a piston rod is controlled to be inserted into a piston pipe, cooling liquid in a movable pipe can be pushed into a circulating water cavity from a one-way water injection pipe, so that new cooling liquid can be injected into the circulating water cavity, and meanwhile, after a part is formed, the part can be cooled, and the part can be cooled. When the upper mold base rises, the piston rod moves backwards, new cooling liquid can be sucked into the piston pipe from the water storage cavity through the one-way water suction pipe, and therefore circulating injection of the cooling liquid into the circulating water cavity can be achieved, the cooling liquid in the circulating water cavity can be kept at the low temperature all the time, and the forming efficiency of parts is improved; and the practicability is higher.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile plastic parts, in particular to an automobile plastic part mold. Background Art

[0002] A car is a vehicle that has its own power and can be driven without tracks or electricity. In a broad sense, vehicles with four wheels are generally called cars. During the manufacturing process of a car, some plastic parts need to be processed, some of which are made by injection molding and some by stamping.

[0003] The existing Chinese patent application number 201922304289.7 discloses a mold for automotive plastic parts, including a base, wherein guide rods are fixedly connected at four corners on the top side of the base, a top seat is fixedly connected to the top of the guide rod, a hydraulic cylinder is fixedly connected to the top side of the top seat, a lifting plate is provided on the guide rod, and compression springs are respectively provided at the four corners on the bottom side of the lifting plate, the compression springs are respectively sleeved with the guide rods, and the bottom ends of the compression springs are fixedly connected to the base, a lower mounting box is provided in the middle of the top side of the base, an upper mounting box is provided in the middle of the bottom side of the lifting plate, and placement grooves are dug in the middle of the top side of the lower mounting box and the middle of the bottom side of the upper mounting box, so that high temperature is discharged through the heat dissipation through holes, which greatly improves the heat dissipation efficiency of the mold, facilitates disassembly and replacement of the mold, greatly improves the accuracy of the merging process, and avoids shaking of the lower mounting box and the upper mounting box after the merging is completed, thereby greatly improving the stability.

[0004] However, the automotive plastic parts mold still has some shortcomings in actual production. During the process of parts injection molding, since the parts will dissipate heat during the molding process, after multiple injections, the heat of the mold itself will increase, and the heat dissipation effect is general if it is only dissipated through the heat dissipation holes, which will affect the subsequent parts cooling and molding efficiency, thereby reducing production efficiency. Utility Model Content

[0005] The purpose of the utility model is to provide a mold for automobile plastic parts to solve the problems raised in the above background technology.

[0006] To achieve the above object, the utility model provides the following technical solutions: a mold for automobile plastic parts, comprising a base assembly, a main body assembly is arranged above the base assembly, a bottom mold assembly is arranged between the main body assembly and the base assembly, and a circulating cooling assembly is fixedly installed at the rear of the top end of the base assembly;

[0007] The base assembly includes a base plate, a water storage cavity is formed in the base plate, and a heat dissipation fin is fixedly installed on the bottom surface of the water storage cavity;

[0008] The bottom mold assembly includes a lower mold base, a mold cavity is formed on the top surface of the lower mold base, a square circulating water cavity is formed around the edges of the top surface of the lower mold base, and a one-way water outlet pipe is fixedly installed on one side of the middle part of the back side of the lower mold base;

[0009] The circulating cooling component includes a long strip, a sliding rod is fixedly installed on the top surface of the long strip, a sliding rotating seat is slidably sleeved on the sliding rod, the top of the sliding rotating seat is rotatably connected to a transmission rod, the other end of the transmission rod is rotatably connected to a connecting rotating seat, a connecting plate is fixedly installed at the front edge of the top face of the connecting rotating seat, a piston rod is fixedly installed on the front face of the top face of the long strip, a piston tube is fixedly installed on the front face of the top face of the long strip, a piston cavity is opened in the piston tube, one end of the piston rod is movably inserted in the piston cavity, a one-way water injection pipe is fixedly installed on the front face of the piston tube, and a one-way water suction pipe is fixedly installed on one side of the piston tube.

[0010] Preferably, one end of the one-way water injection pipe is connected to the inside of the circulating water chamber, one end of the one-way water absorption pipe is connected to the inside of the water storage chamber, the long strip is fixedly installed at the rear edge of the top surface of the base plate, and the front side of the connecting plate is fixedly connected to the back side of the upper mold base.

[0011] Preferably, the main body assembly includes four pillars, a top plate is fixedly mounted on the top ends of the four pillars, and a hydraulic cylinder is fixedly mounted at the center of the top surface of the top plate.

[0012] Preferably, a plurality of heat-conducting columns are fixedly plugged into the bottom of the heat dissipating fins, and both ends of the heat-conducting columns extend to the outside of the base plate.

[0013] Preferably, the lower mold base is fixedly mounted on the top surface of the base plate, and the four corners of the top surface of the base plate are respectively fixedly connected to the bottom end of a pillar.

[0014] Preferably, an upper die seat is fixedly mounted on the bottom end of the output shaft of the hydraulic cylinder, and the upper die seat is located directly above the lower die seat.

[0015] Preferably, an L-shaped mounting plate is fixedly mounted on both side surfaces of the base plate, and a plurality of cooling fans are fixedly embedded in the vertical portion of the L-shaped mounting plate.

[0016] Preferably, a plurality of baffle vertical plates are fixedly installed in the circulating water chamber.

[0017] Compared with the prior art, the beneficial effect of the utility model is that the automobile plastic part mold can control the piston rod to be inserted into the piston tube, and the coolant in the movable tube will be pushed into the circulating water cavity from the one-way water injection pipe, so that new coolant can be injected into the circulating water cavity. At the same time, when the part is formed, the upper mold base rises, and the piston rod moves backward. At this time, new coolant will be sucked into the piston tube from the water storage cavity through the one-way water suction pipe, and then the new coolant can be injected into the circulating water cavity when the upper mold base and the lower mold base are merged next time, so as to realize the circulation injection of coolant into the circulating water cavity, so as to make the coolant in the circulating water cavity always at a lower temperature, so as to achieve a continuous and high cooling effect, improve the molding efficiency of the parts, and be more practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0019] Figure 2 It is a schematic diagram of the back three-dimensional structure of the utility model;

[0020] Figure 3 It is a schematic diagram of the three-dimensional structure of the base assembly and the bottom mold assembly of the utility model;

[0021] Figure 4 This is a schematic diagram of the three-dimensional structure of the circulating cooling component of the utility model;

[0022] Figure 5 It is a schematic diagram of the internal three-dimensional structure of the bottom mold assembly of the utility model.

[0023] In the figure: 1. base assembly; 101. substrate; 102. water storage chamber; 103. heat dissipation fins; 104. heat-conducting column; 105. L-shaped mounting plate; 106. cooling fan; 2. main body assembly; 201. pillar; 202. top plate; 203. hydraulic cylinder; 204. upper mold base; 3. bottom mold assembly; 301. lower mold base; 302. mold cavity; 303. circulating water cavity; 304. baffle vertical plate; 305. one-way water outlet pipe; 4. circulating cooling assembly; 401. long strip plate; 402. sliding rod; 403. sliding rotating seat; 404. transmission rod; 405. connecting rotating seat; 406. connecting plate; 407. piston rod; 408. piston tube; 409. one-way water injection pipe; 410. one-way water suction pipe. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] The utility model provides a technical solution: comprising a base assembly 1, a main body assembly 2 is arranged above the base assembly 1, a bottom mold assembly 3 is arranged between the main body assembly 2 and the base assembly 1, and a circulating cooling assembly 4 is fixedly installed at the rear of the top end of the base assembly 1;

[0026] The base assembly 1 includes a base plate 101, a water storage cavity 102 is provided in the base plate 101, and a heat dissipation fin 103 is fixedly installed on the bottom surface of the water storage cavity 102;

[0027] The bottom mold assembly 3 includes a lower mold base 301, a mold cavity 302 is formed on the top surface of the lower mold base 301, a square circulating water cavity 303 is formed on the edges of the top surface of the lower mold base 301, and a one-way water outlet pipe 305 is fixedly installed on one side of the middle part of the back side of the lower mold base 301;

[0028] The circulating cooling component 4 includes a long strip plate 401, a sliding rod 402 is fixedly installed on the top surface of the long strip plate 401, a sliding rotating seat 403 is slidably sleeved on the sliding rod 402, a transmission rod 404 is rotatably connected to the top of the sliding rotating seat 403, and the other end of the transmission rod 404 is rotatably connected to a connecting rotating seat 405, a connecting plate 406 is fixedly installed at the front edge of the top of the connecting rotating seat 405, and a piston rod 407 is fixedly installed on the front of the sliding rotating seat 403. A piston tube 408 is fixedly installed on the front of the top of the long strip 401, a piston cavity is opened in the piston tube 408, one end of the piston rod 407 is movably inserted in the piston cavity, a one-way water injection pipe 409 is fixedly installed on the front of the piston tube 408, and a one-way water suction pipe 410 is fixedly installed on one side of the piston tube 408. A one-way liquid inlet valve is provided in the one-way water outlet pipe 305, the one-way water injection pipe 409 and the one-way water suction pipe 410, and the coolant can only flow in one direction through the one-way liquid inlet valve;

[0029] One end of the one-way water injection pipe 409 is connected to the inside of the circulating water chamber 303, and one end of the one-way water suction pipe 410 is connected to the inside of the water storage chamber 102. The long strip plate 401 is fixedly installed at the rear edge of the top surface of the substrate 101, and the front side of the connecting plate 406 is fixedly connected to the back side of the upper mold base 204.

[0030] In this embodiment, the main body component 2 includes four pillars 201 , a top plate 202 is fixedly installed on the top of the four pillars 201 , and a hydraulic cylinder 203 is fixedly installed at the center of the top surface of the top plate 202 .

[0031] At the same time, a plurality of heat-conducting columns 104 are fixedly inserted at the bottom of the heat-dissipating fins 103, and both ends of the heat-conducting columns 104 extend to the outside of the substrate 101. An L-shaped mounting plate 105 is fixedly installed on both side surfaces of the substrate 101, and a plurality of heat-dissipating fans 106 are fixedly embedded in the vertical portion of the L-shaped mounting plate 105. The heat carried by the cooling liquid entering the water storage chamber 102 from the circulating water chamber 303 can be quickly absorbed by the heat-dissipating fins 103, and is conducted to the outside of the substrate 101 through the heat-conducting columns 104, and is blown into the air by the heat-dissipating fans 106.

[0032] The lower mold base 301 is fixedly mounted on the top surface of the base plate 101 , and the four corners of the top surface of the base plate 101 are fixedly connected to the bottom end of a support 201 respectively.

[0033] An upper die base 204 is fixedly mounted on the bottom end of the output shaft of the hydraulic cylinder 203 , and the upper die base 204 is located directly above the lower die base 301 .

[0034] A plurality of baffle plates 304 are fixedly installed in the circulating water chamber 303, through which the coolant entering the circulating water chamber 303 can flow in an orderly manner. At the same time, a partition is provided in the circulating water chamber 303 to separate the circulating water chamber 303, so that the coolant can enter the circulating water chamber 303 from the one-way water injection pipe 409 and flow out of the circulating water chamber 303 from the one-way water outlet pipe 305.

[0035] When in use, the upper mold base 204 is pressed down and merged with the lower mold base 301 under the action of the hydraulic cylinder 203. After the merger, the raw material is injected into the mold cavity 302 from the injection port on the front side of the upper mold base 204, and then cooled and formed in the mold cavity 302. During the merging process, the upper mold base 204 will drive the connecting plate 406 to descend, and the descent of the connecting plate 406 will drive the connecting rotating seat 405 to descend. Since the bottom end of the connecting rotating seat 405 is rotationally connected to the transmission rod 404, the other end of the transmission rod 404 is rotationally connected to the sliding rotating seat 403, and the sliding rotating seat 403 is slidably sleeved on the sliding rod 402, the descent of the connecting rotating seat 405 will cause the sliding rotating seat 403 to move forward, and then the piston rod 407 can be driven to be inserted into the piston tube 408. As the piston rod 407 is inserted, the piston tube 408 will be The coolant in the circulating water chamber 303 is pushed into the circulating water chamber 303 from the one-way water injection pipe 409, and then new coolant can be injected into the circulating water chamber 303, so that the coolant in the circulating water chamber 303 is always at a lower temperature, thereby achieving a continuous and high cooling effect, thereby improving the molding efficiency of the parts. With the injection of new coolant, the coolant originally in the circulating water chamber 303 will enter the water storage chamber 102 from the one-way water outlet pipe 305. When the parts are formed, the upper mold base 204 rises, and the piston rod 407 moves backward. At this time, new coolant will be sucked into the piston tube 408 from the water storage chamber 102 through the one-way water suction pipe 410, and then the new coolant can be injected into the circulating water chamber 303 when the upper mold base 204 and the lower mold base 301 are merged next time.

[0036] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A mold for an automobile plastic part, comprising a base assembly (1), characterized in that : A main body component (2) is arranged above the base component (1), a bottom mold component (3) is arranged between the main body component (2) and the base component (1), and a circulating cooling component (4) is fixedly installed at the rear of the top end of the base component (1); The base assembly (1) comprises a base plate (101), a water storage cavity (102) is provided in the base plate (101), and a heat dissipation fin (103) is fixedly mounted on the bottom surface of the water storage cavity (102); The bottom mold assembly (3) comprises a lower mold base (301), a mold cavity (302) is provided on the top surface of the lower mold base (301), a square circulating water cavity (303) is provided at the edges around the top surface of the lower mold base (301), and a one-way water outlet pipe (305) is fixedly installed on one side of the middle part of the back side of the lower mold base (301); The circulating cooling component (4) comprises a long strip plate (401), a sliding rod (402) is fixedly mounted on the top surface of the long strip plate (401), a sliding rotating seat (403) is slidably sleeved on the sliding rod (402), the top of the sliding rotating seat (403) is rotatably connected to a transmission rod (404), the other end of the transmission rod (404) is rotatably connected to a connecting rotating seat (405), and a connecting plate (405) is fixedly mounted on the front edge of the top surface of the connecting rotating seat (405). 406), a piston rod (407) is fixedly installed on the front of the sliding rotating seat (403), a piston tube (408) is fixedly installed on the front of the top surface of the long strip plate (401), a piston cavity is opened in the piston tube (408), one end of the piston rod (407) is movably inserted in the piston cavity, a one-way water injection pipe (409) is fixedly installed on the front of the piston tube (408), and a one-way water suction pipe (410) is fixedly installed on one side of the piston tube (408).

2. The automotive plastic parts mold according to claim 1, characterized in that: One end of the one-way water injection pipe (409) is connected to the inside of the circulating water chamber (303), and one end of the one-way water absorption pipe (410) is connected to the inside of the water storage chamber (102). The long strip plate (401) is fixedly installed at the rear edge of the top surface of the base plate (101), and the front side of the connecting plate (406) is fixedly connected to the back side of the upper mold base (204).

3. The automotive plastic parts mold according to claim 1, characterized in that: The main body component (2) comprises four pillars (201), a top plate (202) is fixedly mounted on the top ends of the four pillars (201), and a hydraulic cylinder (203) is fixedly mounted at the center of the top surface of the top plate (202).

4. The automotive plastic parts mold according to claim 1, characterized in that: A plurality of heat-conducting columns (104) are fixedly plugged into the bottom of the heat-dissipating fins (103), and both ends of the heat-conducting columns (104) extend to the outside of the base plate (101).

5. The automotive plastic parts mold according to claim 1, characterized in that: The lower mold base (301) is fixedly mounted on the top surface of the base plate (101), and the four corners of the top surface of the base plate (101) are respectively fixedly connected to the bottom end of a support (201).

6. The automotive plastic parts mold according to claim 3, characterized in that: An upper die seat (204) is fixedly mounted on the bottom end of the output shaft of the hydraulic cylinder (203), and the upper die seat (204) is located directly above the lower die seat (301).

7. The automotive plastic parts mold according to claim 1, characterized in that: An L-shaped mounting plate (105) is fixedly mounted on both side surfaces of the base plate (101), and a plurality of cooling fans (106) are fixedly embedded in the vertical portion of the L-shaped mounting plate (105).

8. The automotive plastic parts mold according to claim 1, characterized in that: A plurality of baffle vertical plates (304) are fixedly installed in the circulating water chamber (303).

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