Circulating cooling type injection mold with internal cleaning structure

Abstract

The invention discloses a circulating cooling type injection mold with an internal cleaning structure, and relates to the technical field of injection molds, the circulating cooling type injection mold comprises a positioning supporting frame, a first mold and a second mold, connecting transverse plates are symmetrically welded and fixedly mounted at the top end of the positioning supporting frame, and positioning mounting seats are fixedly mounted in the middles of the connecting transverse plates through bolts; the top of the positioning mounting base and the tops of the two ends of the positioning supporting frame are fixedly connected with a separating and combining transmission mechanism. Through the arrangement of the separating and combining transmission mechanism, the first mold and the second mold can be driven to be oppositely butted and reversely separated, so that the first mold and the second mold can be conveniently matched with the rotary reset mechanism to rotate and incline in the separation process, and the interior of the mold can be sufficiently cleaned after injection molding operation every time in cooperation with the washing and cleaning mechanism after inclination; and the internal cleaning convenience and the forming effect of the circulating cooling type injection mold with the internal cleaning structure are improved.

Description

Technical Field

[0001] The invention relates to the technical field of injection molds, in particular to a circulating cooling type injection mold with an internal cleaning structure. Background Art

[0002] Plastic products are often used in daily life. In the process of producing plastic products, injection molds are often needed to ensure the accuracy of their size and shape. When in use, the injection mold injects the heated and molten plastic raw material into the inner cavity of the upper mold and the lower mold by the injection molding machine under high pressure. After the plastic raw material is cooled, the molds are separated to obtain the molded plastic products, which improves the efficiency of plastic product production and meets the large-scale demand for plastic products in daily life.

[0003] However, the existing injection molds still have certain defects when used;

[0004] For example, a fast heat dissipation injection mold proposed in application number CN202121307227.2 includes a base, a heat dissipation module is embedded and installed near the edge of one side of the base, an ejection module is embedded and installed near the edge of the other side of the base, a hydraulic box is fixedly installed on the upper surface of the base near the edge, an injection molding box is embedded and installed on the upper surface of the hydraulic box, a lower pressure head is movably installed on the output end of the hydraulic box, and a static film box is embedded and fixedly installed on the upper surface of the base near the center. The heat dissipation module includes a heat dissipation box, a heat dissipation bellows, a water inlet and outlet, a water pipe, a water injection plate, a heat dissipation support block and a heat dissipation groove, and the heat dissipation bellows is embedded and installed in the heat dissipation box. The fast heat dissipation injection mold described in the fast heat dissipation injection mold can quickly dissipate heat by air cooling and water cooling, thereby improving the heat dissipation efficiency of the equipment, and can also quickly eject the finished product to achieve the purpose of saving injection molding time. In actual use, the following problems still exist:

[0005] 1. When performing injection molding through the movable mold and the static mold, plastic bonding is likely to occur inside the movable mold and the static mold, and plastic bonding will affect subsequent plastic molding work. The existing injection mold is not convenient for cleaning the inside of the mold after each injection molding, which reduces the molding effect and use effect;

[0006] 2. The injection mold achieves rapid heat dissipation of the static mold box by means of water injection and air cooling. However, this heat dissipation method can only quickly dissipate heat on the outside of the mold, while the cooling effect of the heat generated inside the mold will be reduced, thereby reducing the overall heat dissipation efficiency. At the same time, the dynamic mold will also generate heat during the injection process, and failure to dissipate heat for the dynamic mold will also affect the injection efficiency.

[0007] In view of this, we conducted in-depth research on the above issues, which led to the present case.

[0008] In view of the above problems, an innovative design was carried out based on the original circulating cooling injection mold with an internal cleaning structure. Summary of the invention

[0009] The object of the present invention is to provide a circulating cooling type injection mold with an internal cleaning structure to solve the problems in the above background technology that it is inconvenient to effectively clean the inside of the mold and the cooling efficiency is reduced.

[0010] To achieve the above object, the present invention provides the following technical solution: a circulating cooling type injection mold with an internal cleaning structure, comprising a positioning support frame, a first mold and a second mold,

[0011] A connecting transverse plate is symmetrically welded and fixedly installed on the top of the positioning support frame, a positioning mounting seat is bolted and fixedly installed on the middle of the connecting transverse plate, and a separation and combination transmission mechanism is fixedly connected to the top of the positioning mounting seat and the tops of both ends of the positioning support frame;

[0012] A connecting seat is symmetrically installed at the bottom of the splitting and combining transmission mechanism, a fixed rotating rod is rotatably penetrated at the bottom of the connecting seat, and transfer seats are fixedly sleeved at both ends of the fixed rotating rod. A first mold is fixedly connected to the inner side of the right transfer seat, and a second mold is fixedly connected to the inner side of the left transfer seat, and an injection channel is opened inside the second mold;

[0013] A rotation reset mechanism is connected between the fixed rotating rod, the connecting horizontal plate and the connecting seat;

[0014] A circulating cooling mechanism is installed inside the first mold and the second mold;

[0015] A supporting box is fixedly installed on the inner side of the bottom of the positioning support frame, and a flushing and cleaning mechanism is symmetrically installed on the bottom of the supporting box.

[0016] Preferably, the separation and combination transmission mechanism includes a servo motor fixedly mounted on the top surface of the positioning mounting seat, and transmission screws are fixedly connected to both ends of the servo motor, and the outer ends of the transmission screws at both ends are rotatably connected to limiting support frames, and the bottom ends of the limiting support frames at both ends are fixedly connected to the top ends of both sides of the positioning support frames, and the outer ring sleeves of the transmission screws at both ends are provided with movable seats.

[0017] Preferably, the separation and combination transmission mechanism further comprises a limit seat fixedly mounted on both sides of the movable seat, a limit cross bar passes through the interior of the limit seat, and both ends of the limit cross bar are fixedly connected to the limit support frame.

[0018] Preferably, the thread directions of the transmission screws at both ends are arranged in opposite directions, and the movable seat is slidably connected with the limiting cross bar through a limiting seat.

[0019] By adopting the above technical scheme, it is convenient to drive the connecting seat, the fixed rotating rod and the transfer seat at both ends to move toward and in the opposite direction through the separation and combination transmission mechanism, so that in the process of moving toward each other, the first mold and the second mold can be driven to move toward each other and dock, which is beneficial to the injection molding work after docking, and then in the reverse movement, the first mold and the second mold can be driven to move in the opposite direction and separate, which is beneficial to the demoulding and subsequent rotation, tilting and sufficient cleaning of the plastic product, thereby improving the operating convenience and structural linkage of the circulating cooling injection mold with an internal cleaning structure.

[0020] Preferably, the top of the connecting seat is fixedly connected to the bottom surface of the movable seat, the fixed rotating rod is rotatably connected to the connecting seat, and the transfer seat is symmetrically distributed about the center of the fixed rotating rod.

[0021] By adopting the above technical solution, it is convenient to stably connect the fixed rotating rod and the first mold or the second mold on the corresponding side through the symmetrically arranged adapter seat, so that the fixed rotating rod cooperates with the adapter seat to drive the first mold and the second mold to perform stable tilt rotation during the subsequent rotation process, thereby improving the structural stability of the circulating cooling injection mold with an internal cleaning structure.

[0022] Preferably, the rotational reset mechanism includes a fixing ring symmetrically mounted on the outer ring of the fixed rotating rod, a reset torsion spring is sleeved on the outer ring of the fixed rotating rod between the fixing ring and the connecting seat, two ends of the reset torsion spring are respectively fixedly connected to the connecting seat and the fixing ring, the fixed rotating rod and the fixing ring form a rotational reset structure with the connecting seat through the reset torsion spring, and reset limiting seats are fixedly mounted on the top of the fixing rings at both ends, and the reset limiting seats can limit the reset rotation angle of the fixing ring and the fixed rotating rod.

[0023] Preferably, the rotary reset mechanism further comprises transmission gears fixedly mounted on both ends of the fixed rotating rod, fixed tooth blocks are equidistantly mounted on both ends of the connecting cross plate, and the transmission gears and the fixed tooth blocks constitute a meshing transmission structure.

[0024] Preferably, the rotary reset mechanism also includes a connecting slide groove symmetrically opened on the top of the first mold and the second mold, and a positioning cross plate is symmetrically installed on the bottom of the positioning mounting seat, and the position of the positioning cross plate corresponds to the position of the connecting slide groove. When the transmission gear moves to engage with the fixed gear block, the connecting slide groove disengages from the positioning cross plate, and the size of the connecting slide groove matches the size of the positioning cross plate.

[0025] The adoption of the above technical scheme makes it easy for the first mold and the second mold to cooperate with the rotary reset mechanism to perform tilting rotation when moving in the opposite direction and rotational reset when moving toward each other during the process of moving along with the fixed rotating rod and the connecting seat. This is beneficial for the parallel correspondence with the cleaning nozzle after the tilting rotation, thereby achieving effective and comprehensive flushing and convenient draining. At the same time, it is beneficial for the smooth and accurate docking of the first mold and the second mold during the rotational reset, thereby improving the internal cleaning effect and docking accuracy of the circulating cooling injection mold with an internal cleaning structure.

[0026] Preferably, the circulating cooling mechanism includes a circulating heat exchange tube embedded and installed inside the first mold and the second mold, the circulating heat exchange tube is distributed in an "M"-shaped structure inside the first mold and the second mold, the liquid inlet end of the circulating heat exchange tube is fixedly connected to a water inlet pump, and the liquid outlet end of the circulating heat exchange tube is fixedly connected to a water outlet pipe.

[0027] The above technical solution makes it easier for the circulating cooling mechanism to rotate the external refrigerant inside the first mold and the second mold, which is beneficial to achieve rapid heat exchange during the refrigerant circulation process, thereby enabling rapid internal cooling of the first mold and the second mold, thereby improving the cooling efficiency and cooling effect.

[0028] Preferably, the flushing and cleaning mechanism includes a liquid storage tank symmetrically installed at the bottom of the supporting box body, a liquid injection port is installed at the front end of the liquid storage tank, connecting pipes are fixedly connected to the inner sides of the liquid storage tanks on both sides, a water outlet pump is installed at the water outlet end of the connecting pipe, a diversion pipe is fixedly connected to the water outlet end of the water outlet pump, the diversion pipe is fixedly connected to the supporting box body, and cleaning nozzles are installed at equal intervals on the top of the diversion pipe, and the cleaning nozzles are parallel to the inner sides of the tilted first mold and the second mold.

[0029] By adopting the above technical solution, the flushing and cleaning mechanism can perform a comprehensive flushing operation on the first mold and the second mold when the first mold and the second mold are tilted, and can effectively remove the plastic bonding residues on the inner sides of the first mold and the second mold to avoid the residues affecting the subsequent molding effect, thereby improving the use effect of the circulating cooling injection mold with an internal cleaning structure. After flushing, the tilted first mold and the second mold can be quickly drained, and can be quickly and effectively dried in conjunction with external drying equipment.

[0030] Compared with the prior art, the beneficial effects of the present invention are as follows: the circulating cooling type injection mold with an internal cleaning structure can drive the first mold and the second mold to dock and separate in opposite directions through the setting of the separation and combination transmission mechanism, so that it is convenient to cooperate with the rotation reset mechanism to rotate and tilt during the separation process, which is conducive to cooperate with the flushing and cleaning mechanism after tilting to achieve full internal cleaning after each injection molding operation, thereby improving the convenience of internal cleaning and molding effect of the circulating cooling type injection mold with an internal cleaning structure. The specific contents are as follows:

[0031] 1. The setting of the splitting and combining transmission mechanism can cooperate with the connecting seat, the fixed rotating rod and the transfer seat to drive the first mold and the second mold to move toward and in the opposite direction, which is conducive to the docking of the first mold and the second mold when moving toward each other, thereby completing the injection molding of the plastic product, and is also conducive to the demoulding of the plastic product when moving in the opposite direction, thereby improving the convenience of use and operation of the circulating cooling injection mold with an internal cleaning structure;

[0032] 2. The first mold and the second mold will cooperate with the rotary reset mechanism to perform an inclined rotation during the reverse movement, so that the inclined first mold and the second mold can be docked with the flushing and cleaning mechanism with the largest area, which is conducive to the flushing and cleaning mechanism to fully flush and clean the inside of the first mold and the second mold, and at the same time facilitates the rapid outflow of the cleaning liquid, thereby improving the internal cleaning effect of the circulating cooling type injection mold with an internal cleaning structure;

[0033] 3. The setting of the circulating cooling mechanism can rotate the external refrigerant inside the first mold and the second mold, thereby realizing heat exchange during the circulation process, and can quickly cool the first mold and the second mold during heat exchange, thereby improving the cooling efficiency of the circulating cooling injection mold with an internal cleaning structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a side view structural schematic diagram of the present invention;

[0035] Figure 2 It is a schematic diagram of the connection structure between the splitting and combining transmission mechanism and the first mold and the second mold of the present invention;

[0036] Figure 3 It is a schematic diagram of the side structure of the splitting and combining transmission mechanism of the present invention;

[0037] Figure 4 It is a schematic diagram of the connection structure between the split-and-close transmission mechanism and the rotary reset mechanism of the present invention;

[0038] Figure 5 It is a schematic diagram of the connection structure between the first mold and the second mold and the rotation reset mechanism of the present invention;

[0039] Figure 6 It is a schematic diagram of the transmission structure of the first mold and the rotary reset mechanism of the present invention;

[0040] Figure 7 It is a schematic diagram of the connection structure of the connecting seat side section, the fixed rotating rod and the rotating reset mechanism of the present invention;

[0041] Figure 8 It is a schematic diagram of the connection structure between the side section of the second mold and the circulating cooling mechanism of the present invention;

[0042] Fig. 9 It is a schematic diagram of the connection structure between the side section of the first mold and the circulating cooling mechanism of the present invention;

[0043] Fig.10 It is a schematic diagram of the connection structure between the side section of the supporting box and the flushing and cleaning mechanism of the present invention;

[0044] Fig.11 It is a schematic diagram of the side section structure of the flushing and cleaning mechanism of the present invention.

[0045] In the figure: 1. positioning support frame; 2. connecting cross plate; 3. positioning mounting seat; 4. servo motor; 5. transmission screw; 6. limiting support frame; 7. movable seat; 8. limiting seat; 9. limiting cross bar; 10. connecting seat; 11. fixed rotating rod; 12. adapter seat; 13. first mold; 14. second mold; 15. injection channel; 16. fixing ring; 17. reset torsion spring; 18. reset limiting seat; 19. transmission gear; 20. fixed gear block; 21. connecting slide; 22. positioning cross plate; 23. circulating heat exchange tube; 24. water inlet pump; 25. water outlet pipe; 26. supporting box; 27. liquid storage tank; 28. liquid filling port; 29. ​​connecting pipe; 30. water outlet pump; 31. diversion pipe; 32. cleaning nozzle. DETAILED DESCRIPTION

[0046] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0047] See also Figure 1-11The present invention provides a technical solution: a circulating cooling type injection mold with an internal cleaning structure, comprising a positioning support frame 1, a first mold 13 and a second mold 14, the top of the positioning support frame 1 is symmetrically welded and fixedly installed with a connecting cross plate 2, the middle of the connecting cross plate 2 is bolted and fixedly installed with a positioning mounting seat 3, the top of the positioning mounting seat 3 and the tops of both ends of the positioning support frame 1 are fixedly connected with a separation and combination transmission mechanism, the separation and combination transmission mechanism comprises a servo motor 4 fixedly installed on the top surface of the positioning mounting seat 3, the two ends of the servo motor 4 are fixedly connected with a transmission screw 5, the thread directions of the transmission screws 5 at both ends are set in reverse, the outer ends of the transmission screws 5 at both ends are rotatably connected to the limited support frame 6, the bottom ends of the limited support frames 6 at both ends are fixedly connected to the tops of both sides of the positioning support frame 1, the outer rings of the transmission screws 5 at both ends are provided with movable seats 7, the separation and combination transmission mechanism also includes a limit seat 8 fixedly installed on both sides of the movable seat 7, the interior of the limit seat 8 runs through a limit cross bar 9, the movable seat 7 is limitedly slidably connected with the limit cross bar 9 through the limit seat 8, and the two ends of the limit cross bar 9 are fixedly connected to the limit support frame 6;

[0048] The design of the above structure makes it possible to drive the transmission screws 5 at both ends to rotate in forward and reverse directions through the control of the servo motor 4, and then the reverse opening of the thread direction can be used during the rotation process of the transmission screw 5 to drive the movable seats 7 at both ends to move toward and in reverse directions. During the movement of the movable seat 7, it will also drive the limit seats 8 on both sides to slide on the limit cross bar 9, so that the limit cross bar 9 can limit the movement of the limit seat 8 and the movable seat 7, thereby ensuring the stability of the movable seat 7 during the movement. The setting of the limit support frame 6 can stably support and position the transmission screw 5 and the limit cross bar 9, thereby ensuring the stability of the transmission and limiting work, and the positioning support frame 1 can stably support the connecting cross plate 2, so that the connecting cross plate 2 can stably position and support the positioning mounting seat 3 and the separation and combination transmission mechanism.

[0049] A connecting seat 10 is symmetrically installed at the bottom of the splitting and closing transmission mechanism, the top of the connecting seat 10 is fixedly connected to the bottom surface of the movable seat 7, a fixed rotating rod 11 is rotatably penetrated at the bottom of the connecting seat 10, the fixed rotating rod 11 is rotatably connected to the connecting seat 10, and transfer seats 12 are fixedly sleeved at both ends of the fixed rotating rod 11, and the transfer seats 12 are symmetrically distributed about the center of the fixed rotating rod 11, a first mold 13 is fixedly connected to the inner side of the right transfer seat 12, and a second mold 14 is fixedly connected to the inner side of the left transfer seat 12, and an injection channel 15 is opened inside the second mold 14;

[0050] The design of the above structure enables the movable seats 7 at both ends to drive the corresponding connecting seat 10 at the bottom to move when they move toward and in the opposite directions, and then the connecting seat 10 will drive the internally connected fixed rotating rod 11 to move synchronously, and utilize the transfer seats 12 at both ends of the fixed rotating rod 11 to drive the first mold 13 and the second mold 14 to move toward and in the opposite directions. When the first mold 13 and the second mold 14 move toward each other, they can be accurately docked to realize injection molding. When the first mold 13 and the second mold 14 move in the opposite directions, they are separated to realize convenient demolding, and the subsequent tilting and rotating work can be performed by utilizing the rotating connection between the fixed rotating rod 11 and the connecting seat 10.

[0051] A rotation reset mechanism is connected between the fixed rotating rod 11 and the connecting cross plate 2 and the connecting seat 10. The rotation reset mechanism includes a fixed ring 16 symmetrically installed on the outer ring of the fixed rotating rod 11. A reset torsion spring 17 is sleeved on the outer ring of the fixed rotating rod 11 between the fixed ring 16 and the connecting seat 10. The two ends of the reset torsion spring 17 are respectively fixedly connected to the connecting seat 10 and the fixed ring 16. The fixed rotating rod 11 and the fixed ring 16 form a rotation reset structure with the connecting seat 10 through the reset torsion spring 17. The tops of the fixed rings 16 at both ends are fixedly installed with reset limiting seats 18. The reset limiting seats 18 can limit the reset rotation angle of the fixed ring 16 and the fixed rotating rod 11. The rotation and reset mechanism also includes a transmission gear 19 fixedly mounted on both ends of the fixed rotating rod 11, and fixed tooth blocks 20 are installed at equal intervals at both ends of the connecting cross plate 2. The transmission gear 19 and the fixed tooth blocks 20 constitute a meshing transmission structure. The rotation and reset mechanism also includes a connecting slide 21 symmetrically opened on the top of the first mold 13 and the second mold 14, and a positioning cross plate 22 is symmetrically installed at the bottom of the positioning mounting seat 3. The position of the positioning cross plate 22 corresponds to the position of the connecting slide 21. When the transmission gear 19 moves to mesh with the fixed tooth block 20, the connecting slide 21 is disengaged from the positioning cross plate 22, and the size of the connecting slide 21 is consistent with the size of the positioning cross plate 22.

[0052] The design of the above structure enables the first mold 13 and the second mold 14 to slide on the positioning cross plate 22 in a limited manner through the top connecting groove 21 when they move in the opposite direction. When the first mold 13 and the second mold 14 drive the transmission gear 19 to contact the innermost fixed tooth block 20, the top connecting groove 21 just disengages from the positioning cross plate 22. Then the first mold 13 and the second mold 14 continue to move in the opposite direction, which causes the transmission gear 19 to engage with the fixed tooth block 20 for transmission. Then the transmission gear 19 drives the fixed rotating rod 11 to rotate at the bottom of the connecting seat 10, and drives the first mold 13 in cooperation with the adapter seat 12 during rotation. The first mold 13 and the second mold 14 are rotated and tilted. At this time, the tilted first mold 13 and the second mold 14 will correspond to the cleaning nozzle 32 to achieve comprehensive cleaning. When the cleaning is completed, the first mold 13 and the second mold 14 will move toward each other, and then cooperate with the meshing transmission of the transmission gear 19 and the fixed tooth block 20 to rotate and reset. When the transmission gear 19 is separated from the innermost fixed tooth block 20, the top connecting groove 21 is just docked with the positioning cross plate 22, so that the first mold 13 and the second mold 14 can drive the connecting groove 21 to slide on the positioning cross plate 22 in a limited manner when continuing to move toward each other, thereby ensuring the accuracy of docking;

[0053] When the transmission gear 19 is disengaged from the fixed tooth block 20 and the connecting slide groove 21 is connected to the positioning cross plate 22, the reset torsion spring 17 can cooperate with the fixed ring 16 to drive the fixed rotating rod 11 to rotate inside the connecting seat 10, and cooperate with the reset limiting seat 18 to enable the first mold 13 and the second mold 14 to be vertically reset, avoiding misalignment when the connecting slide groove 21 and the positioning cross plate 22 are connected, thereby further improving the connection accuracy.

[0054] A circulating cooling mechanism is installed inside the first mold 13 and the second mold 14. The circulating cooling mechanism includes a circulating heat exchange tube 23 embedded in the first mold 13 and the second mold 14. The circulating heat exchange tube 23 is distributed in an "M"-shaped structure inside the first mold 13 and the second mold 14. The liquid inlet end of the circulating heat exchange tube 23 is fixedly connected to a water inlet pump 24, and the liquid outlet end of the circulating heat exchange tube 23 is fixedly connected to a water outlet pipe 25.

[0055] The design of the above structure enables the water inlet pump 24 to extract the external refrigerant and transport it to the interior of the circulating heat exchange tube 23, and flow in conjunction with the "M"-shaped structure of the circulating heat exchange tube 23. During the flow, the heat of the first mold 13 and the second mold 14 are exchanged to achieve cooling, and then discharged through the water outlet pipe 25, thereby realizing the circulation of the refrigerant and the cooling of the first mold 13 and the second mold 14.

[0056] A supporting box 26 is fixedly installed on the inner side of the bottom of the positioning support frame 1, and a flushing and cleaning mechanism is symmetrically installed on the bottom of the supporting box 26. The flushing and cleaning mechanism includes a liquid storage tank 27 symmetrically installed on the bottom of the supporting box 26, and a liquid injection port 28 is installed at the front end of the liquid storage tank 27. Connecting pipes 29 are fixedly connected to the inner sides of the liquid storage tanks 27 on both sides, and a water outlet pump 30 is installed at the water outlet end of the connecting pipe 29. A shunt pipe 31 is fixedly connected to the water outlet end of the water outlet pump 30. The shunt pipe 31 is fixedly connected to the supporting box 26 through and through, and cleaning nozzles 32 are installed at equal intervals at the top of the shunt pipe 31. The cleaning nozzles 32 are parallel and corresponding to the inner sides of the tilted first mold 13 and the second mold 14;

[0057] The design of the above structure enables the cleaning liquid inside the liquid storage tank 27 to be replenished through the liquid filling port 28, and the cleaning liquid inside the liquid storage tank 27 can be extracted through the water outlet pump 30 in cooperation with the connecting pipe 29, and dispersed through the diversion pipe 31 and then dispersed and sprayed out by the cleaning nozzle 32, so as to effectively clean the inside of the inclined first mold 13 and the second mold 14, and after cleaning, it can be dried by external drying equipment.

[0058] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0059] 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 circulating cooling type injection mold with an internal cleaning structure, comprising a positioning support frame (1), a first mold (13) and a second mold (14), characterized in that: A connecting transverse plate (2) is symmetrically welded and fixedly mounted on the top of the positioning support frame (1), a positioning mounting seat (3) is bolted and fixedly mounted on the middle of the connecting transverse plate (2), and a separation and combination transmission mechanism is fixedly connected to the top of the positioning mounting seat (3) and the tops of both ends of the positioning support frame (1); A connecting seat (10) is symmetrically mounted at the bottom of the splitting and combining transmission mechanism, a fixed rotating rod (11) is rotatably penetrated through the bottom of the connecting seat (10), two ends of the fixed rotating rod (11) are fixedly sleeved with a transfer seat (12), a first mold (13) is fixedly connected to the inner side of the right transfer seat (12), a second mold (14) is fixedly connected to the inner side of the left transfer seat (12), and an injection channel (15) is provided inside the second mold (14); A rotational reset mechanism is connected between the fixed rotating rod (11), the connecting transverse plate (2) and the connecting seat (10); A circulating cooling mechanism is installed inside the first mold (13) and the second mold (14); A supporting box (26) is fixedly mounted on the inner side of the bottom of the positioning support frame (1), and a flushing and cleaning mechanism is symmetrically mounted on the bottom of the supporting box (26).

2. A circulating cooling type injection mold with an internal cleaning structure according to claim 1, characterized in that: The splitting and combining transmission mechanism comprises a servo motor (4) fixedly mounted on the top surface of the positioning mounting seat (3), the two ends of the servo motor (4) are fixedly connected with transmission screws (5), the outer ends of the transmission screws (5) at the two ends are rotatably connected to limit support frames (6), the bottom ends of the limit support frames (6) at the two ends are fixedly connected to the top ends of the two sides of the positioning support frame (1), and the outer rings of the transmission screws (5) at the two ends are provided with movable seats (7).

3. A circulating cooling type injection mold with an internal cleaning structure according to claim 2, characterized in that: The splitting and combining transmission mechanism also includes a limit seat (8) fixedly mounted on both sides of the movable seat (7), a limit cross bar (9) passing through the interior of the limit seat (8), and two ends of the limit cross bar (9) are fixedly connected to the limit support frame (6).

4. A circulating cooling type injection mold with an internal cleaning structure according to claim 3, characterized in that: The thread directions of the transmission screw rods (5) at both ends are arranged in opposite directions, and the movable seat (7) is connected to the limiting cross bar (9) in a limited sliding manner through a limiting seat (8).

5. A circulating cooling type injection mold with an internal cleaning structure according to claim 4, characterized in that: The top of the connecting seat (10) is fixedly connected to the bottom surface of the movable seat (7), the fixed rotating rod (11) is rotatably connected to the connecting seat (10), and the transfer seat (12) is symmetrically distributed about the center of the fixed rotating rod (11).

6. The circulating cooling type injection mold with an internal cleaning structure according to claim 1, characterized in that: The rotational reset mechanism comprises a fixing ring (16) symmetrically mounted on the outer ring of a fixing rotating rod (11); a reset torsion spring (17) is sleeved on the outer ring of the fixing rotating rod (11) between the fixing ring (16) and the connecting seat (10); two ends of the reset torsion spring (17) are respectively fixedly connected to the connecting seat (10) and the fixing ring (16); the fixing rotating rod (11) and the fixing ring (16) form a rotational reset structure with the connecting seat (10) through the reset torsion spring (17); reset limiting seats (18) are fixedly mounted on the tops of the fixing rings (16) at both ends; the reset limiting seats (18) can limit the reset rotation angles of the fixing ring (16) and the fixing rotating rod (11).

7. A circulating cooling type injection mold with an internal cleaning structure according to claim 6, characterized in that: The rotary reset mechanism also includes transmission gears (19) fixedly mounted on both ends of the fixed rotating rod (11), fixed tooth blocks (20) are evenly spacedly mounted on both ends of the connecting transverse plate (2), and the transmission gear (19) and the fixed tooth blocks (20) form a meshing transmission structure.

8. The circulating cooling type injection mold with an internal cleaning structure according to claim 7, characterized in that: The rotary reset mechanism also includes a connecting slide groove (21) symmetrically opened on the top of the first mold (13) and the second mold (14); a positioning transverse plate (22) is symmetrically installed at the bottom of the positioning mounting seat (3); the position of the positioning transverse plate (22) corresponds to the position of the connecting slide groove (21); when the transmission gear (19) moves to engage with the fixed gear block (20), the connecting slide groove (21) is disengaged from the positioning transverse plate (22); the size of the connecting slide groove (21) is consistent with the size of the positioning transverse plate (22).

9. The circulating cooling type injection mold with an internal cleaning structure according to claim 1, characterized in that: The circulating cooling mechanism comprises a circulating heat exchange tube (23) embedded and installed inside the first mold (13) and the second mold (14); the circulating heat exchange tube (23) is distributed in an "M"-shaped structure inside the first mold (13) and the second mold (14); the liquid inlet end of the circulating heat exchange tube (23) is fixedly connected to a water inlet pump (24); and the liquid outlet end of the circulating heat exchange tube (23) is fixedly connected to a water outlet pipe (25).

10. The circulating cooling type injection mold with an internal cleaning structure according to claim 1, characterized in that: The flushing and cleaning mechanism comprises a liquid storage tank (27) symmetrically mounted at the bottom of a supporting box (26), a liquid injection port (28) being mounted at the front end of the liquid storage tank (27), connecting pipes (29) being fixedly connected to the inner sides of the liquid storage tanks (27) on both sides, a water outlet pump (30) being mounted at the water outlet end of the connecting pipe (29), a diversion pipe (31) being fixedly connected to the water outlet end of the water outlet pump (30), the diversion pipe (31) being fixedly connected to the supporting box (26), and cleaning nozzles (32) being mounted at equal intervals at the top end of the diversion pipe (31), the cleaning nozzles (32) being parallel and corresponding to the inner sides of the tilted first mold (13) and the second mold (14).

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