Low-voltage connector injection molding equipment for motor

Abstract

The invention relates to the technical field of injection molding equipment, and discloses low-voltage connector injection molding equipment for a motor, which comprises a rack, a processing table is fixedly connected to the upper surface of the rack, an opening is formed in the upper surface of the processing table, a lower mold is mounted in the opening, and a mounting plate is arranged on the outer side of the lower mold; the lower surface of the mounting plate is fixedly connected with the top end of the machining table, an upper die is mounted above the lower die, movable cores are mounted on the two sides of the lower die, a transmission assembly is mounted on the surface of the upper die and used for driving the upper die to move vertically and driving the movable cores to move horizontally, and a U-shaped base is mounted below the lower die. When the first air cylinder contracts, the lower die is driven to descend and incline, so that the low-voltage connector insert slides and falls off, automatic discharging of the low-voltage connector insert is achieved, demolding can be achieved without material ejection, and the low-voltage connector insert is effectively prevented from being damaged during demolding.

Description

Technical Field

[0001] The invention relates to the technical field of injection molding equipment, in particular to a low-voltage connector injection molding equipment for a motor. Background Art

[0002] In new energy vehicles, there are a large number of electrical connectors for signal transmission, such as high-voltage connectors, low-voltage connectors and high-speed connectors, and the electrical connectors usually include contacts for transmitting signals and electrical connector inserts for supporting and fixing the contacts. The electrical connector inserts are usually made of engineering plastics, so they are usually processed and formed by injection molding machines. Traditional injection molding machines usually need to cooperate with moving cores when processing electrical connector inserts with complex structures. After the processing is completed, the demolding time needs to be controlled according to the curing condition of the electrical connector inserts. If the separation time is too early, the electrical connector insert is not completely cured and will be deformed or damaged. If the separation time is too late, the adhesion between the moving core and the electrical connector insert may be too strong and damage the mold or the electrical connector insert.

[0003] Traditional injection molding machines usually use the ejection method to demold. During the ejection process, due to the design limitations of the mechanical structure or the insufficiency of the control system, it is often difficult to ensure the stability and consistency of the ejection action. A large amount of manual intervention and monitoring is often required in the ejection link, which not only increases labor costs, but also reduces the automation level of the production line. In addition, once an operational error occurs, the ejection action is performed before the moving core is completely separated from the electrical connector insert, which will cause the electrical connector insert to deform or even break. Summary of the invention

[0004] In view of the deficiencies of the prior art, the present invention provides a low-voltage connector injection molding device for a motor, which solves the problem of damage to the electric connector insert caused by improper ejection operation before the moving core and the electric connector insert are completely separated.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: A low-voltage connector injection molding device for a motor, comprising a frame, a processing table is fixedly connected to the upper surface of the frame, an opening is opened on the upper surface of the processing table, a lower mold is installed in the opening, a mounting plate is arranged on the outer side of the lower mold, the lower surface of the mounting plate is fixedly connected to the top of the processing table, an upper mold is installed above the lower mold, a moving core is installed on both sides of the lower mold, a transmission assembly is installed on the surface of the upper mold, the transmission assembly is used to drive the upper mold to move vertically and the moving core to move horizontally, a U-shaped base is installed below the lower mold, one end of the base is rotatably connected to one end of the lower mold through a shaft, a demolding assembly is installed below the lower mold, the demolding assembly comprises a cylinder 1 and a limit block, the outer wall of the cylinder 1 is fixedly connected to the upper surface of the frame, the driving end of the cylinder 1 is fixedly connected to the lower surface of the base, and the bottom end of the limit block is fixedly connected to the upper surface of the frame.

[0006] Preferably, the demoulding assembly further comprises a notch, the notch is formed on the surface of the base, a T-shaped limiting rod is arranged inside the notch, and the top end of the limiting rod is fixedly connected to the lower surface of the lower mold.

[0007] Preferably, the transmission assembly includes cylinder 2 and a screw, the outer wall of cylinder 2 is fixedly connected to the top of the frame, the driving end of cylinder 2 is fixedly connected to a connecting seat, the bottom end of the connecting seat is fixedly connected to a telescopic rod, and the bottom end of the telescopic rod is fixedly connected to the upper surface of the upper mold, and the bottom end of the moving core is slidably connected to the upper surface of the mounting plate.

[0008] Preferably, an elastic member is sleeved on the outer side of the telescopic rod, the upper mold is set to be a cross shape, the lower surface of the upper mold is symmetrically fixedly connected with extension arms, and one end of the lead screw is fixedly connected to the outer wall of the moving core.

[0009] Preferably, the outer wall of the lead screw is threadedly connected with a threaded ring, one end of the threaded ring is rotatably connected to the outer wall of the mounting plate, the outer wall of the threaded ring is provided with an annular tooth groove, the outer side wall of the extension arm is provided with a strip tooth groove, and the annular tooth groove can be meshed and connected with the strip tooth groove.

[0010] Preferably, the upper mold includes a connecting body, a cleaning port is opened at the center of the connecting body, a T-shaped template is inserted into the inside of the cleaning port, an injection port is opened on the surface of the template, and a cleaning assembly is installed on the surfaces of the mounting plate, the upper mold and the connecting seat.

[0011] Preferably, the cleaning assembly includes a cleaning tool and a connecting column, the cleaning tool is slidably installed inside the cleaning port, and the two ends of the connecting column are fixedly connected to the lower surface of the template and the lower surface of the connecting seat respectively.

[0012] Preferably, one end of the cleaning tool is fixedly connected to a tension spring, and the other end of the tension spring is fixedly mounted on the inner wall of the cleaning port.

[0013] Preferably, a connecting rope is fixedly connected to the upper surface of the cleaning tool, the other end of the connecting rope is fixedly connected to the lower surface of the connecting seat, a guide seat is provided through the surface of the connecting rope, and the bottom end of the guide seat is fixedly connected to the upper surface of the template.

[0014] Preferably, a positioning column is symmetrically fixedly connected to the lower surface of the upper mold, a positioning cylinder is inserted and provided on the outer side of the positioning column, and the bottom end of the positioning cylinder is fixedly connected to the upper surface of the mounting plate.

[0015] Working principle: During the injection molding process, the controller controls the operation of cylinder 2. During the processing, cylinder 2 extends to drive the connecting seat to descend, and the connecting seat drives the upper mold to descend through the telescopic rod, so that the upper mold can descend and press against the lower mold until the telescopic rod shrinks to the minimum amplitude, so that the upper mold can stably press against the lower mold, and when the upper mold descends, it drives the extension arm to descend, and the extension arm descends so that the strip tooth groove and the annular tooth groove are engaged and connected, thereby driving the threaded ring to rotate. The rotation of the threaded ring drives the moving core to move to the lower mold through the cooperation with the lead screw, and when the strip tooth groove and the annular tooth groove are disengaged, the moving core and the lower mold are closely matched, and the upper mold, the lower mold and the moving core cooperate to form a cavity for processing the electrical connector insert, and then the raw material is injected to wait for the low-voltage connector insert molding process.

[0016] After cooling and forming, the second cylinder contracts to drive the telescopic rod to extend. After the telescopic rod extends to the maximum extent, it pulls the upper mold to rise, and when the upper mold rises, it drives the extension arm to rise. When the strip tooth groove rises and engages with the annular tooth groove again, it drives the threaded ring to rotate in the opposite direction, so that the movable core slides away from the lower mold, so that the movable core is separated from the low-pressure connector insert. After separation, the first cylinder contracts to drive the lower mold carrying the low-pressure connector insert to descend, and when the lower mold descends, it is restricted by the limit block, so that the lower mold is tilted, so that the low-pressure connector insert slides and falls off, realizing automatic unloading of the low-pressure connector insert, so that demolding can be achieved without pushing the material, and effectively preventing the low-pressure connector insert from being damaged during demolding.

[0017] When the second cylinder is extended, it drives the upper mold to press against the lower mold, so that the telescopic rod gradually shrinks to the minimum amplitude. At this time, the distance between the connecting seat and the cleaning tool is reduced, so that the connecting rope remains loose, and the cleaning tool is kept on one side of the template under the tension of the tension spring, so that the template can be inserted into the inside of the cleaning port. When demoulding, the second cylinder is contracted to drive the telescopic rod to gradually extend. Before the telescopic rod shrinks to the maximum amplitude, downward pressure is applied to the connecting body through the elastic member, so that the connecting body remains stationary, and the cleaning tool also remains stationary when the connecting body does not move, and the template rises with the movement of the connecting seat, thereby opening the cleaning port for the subsequent insertion of the cleaning tool. When the connecting seat rises, the cleaning tool is pulled by the connecting rope to slide in the direction of the low-pressure connector insert, and then the cleaning tool is used to remove the casting material remaining on the upper surface of the low-pressure connector insert, so as to achieve the effect of automatically shearing the casting material remaining on the surface of the low-pressure connector insert, and when the upper mold rises, the cleaning tool head will automatically insert into the inner wall of the injection port, thereby automatically cleaning the residue in the injection port.

[0018] The present invention provides a low-voltage connector injection molding device for a motor, which has the following beneficial effects: 1. The present invention drives the lower mold to descend and tilt when the cylinder contracts, so that the low-pressure connector insert slides off, realizing automatic unloading of the low-pressure connector insert, thereby realizing demoulding without pushing the material, and effectively preventing the low-pressure connector insert from being damaged during demoulding.

[0019] 2. The present invention drives the upper mold to rise and fall by telescoping the second cylinder, and synchronously drives the moving core to slide when the upper mold rises and falls, so that no additional driving force is required to drive the moving core to move, thereby achieving the effect of reducing the use cost.

[0020] 3. When the upper mold of the present invention rises, the residual casting material on the upper surface of the low-voltage connector insert is removed by a cleaning tool, thereby achieving the effect of automatically shearing the residual casting material on the surface of the low-voltage connector insert.

[0021] 4. The present invention allows the cleaning blade to be inserted into the inner wall of the injection port when the upper mold rises, thereby automatically cleaning the residue in the injection port without manual cleaning, thereby reducing the labor intensity of workers. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A perspective view of the present invention; Figure 2 It is a cross-sectional schematic diagram of a processing table of the present invention; Figure 3 It is a schematic diagram of the demoulding assembly structure of the present invention; Figure 4 It is a schematic diagram of the base and lower mold structure of the present invention; Figure 5 It is a schematic diagram of the transmission assembly structure of the present invention; Figure 6 For the present invention Figure 5 A magnified image of point A; Figure 7 It is a schematic diagram of the positioning column and positioning cylinder structure of the present invention; Figure 8 It is a schematic diagram of the upper mold structure of the present invention; Fig. 9 It is a schematic diagram of the cleaning tool structure of the present invention.

[0023] Among them, 1. frame; 2. processing table; 3. lower mold; 4. upper mold; 41. connecting body; 42. cleaning port; 43. template; 5. moving core; 6. transmission assembly; 61. cylinder two; 62. connecting seat; 63. telescopic rod; 64. elastic member; 65. extension arm; 66. lead screw; 67. threaded ring; 68. annular tooth groove; 69. strip tooth groove; 7. base; 8. demoulding assembly; 81. cylinder one; 82. limit block; 83. notch; 84. limit rod; 9. cleaning assembly; 91. cleaning tool; 92. connecting column; 93. tension spring; 94. connecting rope; 95. guide seat; 12. injection port; 14. mounting plate; 15. positioning column; 16. positioning cylinder; 17. through-port; 18. cleaning column; 19. cleaning tool head. DETAILED DESCRIPTION

[0024] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings 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.

[0025] Please see attached Figure 1 -Attached Figure 3 The embodiment of the present invention provides a low-voltage connector injection molding device for a motor, comprising a frame 1, a processing table 2 is fixedly connected to the upper surface of the frame 1, an opening is formed on the upper surface of the processing table 2, a lower mold 3 is installed in the opening, a mounting plate 14 is arranged on the outer side of the lower mold 3, the lower surface of the mounting plate 14 is fixedly connected to the top of the processing table 2, an upper mold 4 is installed above the lower mold 3, a moving core 5 is installed on both sides of the lower mold 3, and a transmission assembly 6 is installed on the surface of the upper mold 4, and the transmission assembly 6 is used to drive the upper mold 4 Vertical movement and horizontal movement of the movable core 5, a U-shaped base 7 is installed below the lower mold 3, one end of the base 7 is rotatably connected to one end of the lower mold 3 through an axis, and a demolding assembly 8 is installed below the lower mold 3. The demolding assembly 8 includes a cylinder 81 and a limit block 82. The outer wall of the cylinder 81 is fixedly connected to the upper surface of the frame 1, the driving end of the cylinder 81 is fixedly connected to the lower surface of the base 7, the bottom end of the limit block 82 is fixedly connected to the upper surface of the frame 1, and the cylinder 81 is electrically connected to the controller.

[0026] Specifically, during the injection molding process, the transmission component 6 drives the movable core 5 to move horizontally and tightly against the lower mold 3, and the upper mold 4 moves vertically and tightly against the lower mold 3. The upper mold 4, the lower mold 3 and the movable core 5 cooperate to form a cavity for processing the electrical connector insert, and then the raw material is injected to wait for the low-pressure connector insert to be molded. After cooling and molding, the upper mold 4 is driven to rise by the transmission component 6, and the movable core 5 slides in the direction away from the lower mold 3, so that the movable core 5 is separated from the low-pressure connector insert. After separation, the cylinder 81 contracts, driving the lower mold 3 carrying the low-pressure connector insert to descend, and when the lower mold 3 descends, the limit block 82 is used to limit the lower mold 3, so that the low-pressure connector insert slides and falls off, realizing automatic unloading of the low-pressure connector insert, so that demolding can be achieved without pushing the material, and the low-pressure connector insert is effectively prevented from being damaged during demolding.

[0027] Please see attached Figure 4 The demolding assembly 8 also includes a notch 83 , which is opened on the surface of the base 7 , and a T-shaped limiting rod 84 is arranged inside the notch 83 , and the top end of the limiting rod 84 is fixedly connected to the lower surface of the lower mold 3 .

[0028] Specifically, the controller controls the cylinder 81 to contract, and the contraction of the cylinder 81 drives the base 7 to descend. The descent of the base 7 pulls the lower mold 3 down, so that the lower mold 3 is separated from the low-voltage connector insert. Then, the cylinder 81 rises to restore the lower mold 3 to its original position, and the rotation angle of the lower mold 3 is limited by the limit rod 84, so that the cylinder 81 can pass through the limit rod 84 without descending a long distance, and pull the base 7 to separate from the low-voltage connector insert, thereby achieving the effect of preventing adhesion.

[0029] Please see attached Figure 5 -Attached Figure 6 The transmission assembly 6 includes a cylinder 2 61 and a lead screw 66. The outer wall of the cylinder 2 61 is fixedly connected to the top of the frame 1. The driving end of the cylinder 2 61 is fixedly connected to a connecting seat 62. The bottom end of the connecting seat 62 is fixedly connected to a telescopic rod 63. The bottom end of the telescopic rod 63 is fixedly connected to the upper surface of the upper mold 4. The bottom end of the movable core 5 is slidably connected to the upper surface of the mounting plate 14. The controller is electrically connected to the cylinder 2 61.

[0030] Specifically, the operation of cylinder 2 61 is controlled by a controller. During processing, cylinder 2 61 extends to drive the connecting seat 62 to descend, and the connecting seat 62 drives the upper mold 4 to descend through the telescopic rod 63, so that the upper mold 4 can descend to resist the lower mold 3 until the telescopic rod 63 shrinks to the minimum extent. During demoulding, cylinder 2 61 shrinks to drive the telescopic rod 63 to extend. After the telescopic rod 63 extends to the maximum extent, it pulls the upper mold 4 to rise, thereby realizing the vertical lifting of the upper mold 4.

[0031] Please see attached Figure 5 -Attached Figure 6An elastic member 64 is sleeved on the outer side of the telescopic rod 63. The elastic member 64 adopts a strong spring or memory alloy, so as to apply a strong pressure to the upper mold 4 locally. The upper mold 4 is set to a cross shape. The lower surface of the upper mold 4 is symmetrically fixedly connected with an extension arm 65. One end of the lead screw 66 is fixedly connected to the outer wall of the movable core 5. The outer wall of the lead screw 66 is threadedly connected with a threaded ring 67. One end of the threaded ring 67 is rotatably connected to the outer wall of the mounting plate 14. The outer wall of the threaded ring 67 is provided with an annular tooth groove 68. The outer side wall of the extension arm 65 is provided with a strip tooth groove 69. The annular tooth groove 68 can be meshed and connected with the strip tooth groove 69.

[0032] Specifically, the elastic member 64 is used to apply elastic pressure to the upper mold 4 when the mold is closed. When the upper mold 4 descends, it drives the extension arm 65 to descend. The descent of the extension arm 65 makes the strip tooth groove 69 mesh with the annular tooth groove 68, thereby driving the threaded ring 67 to rotate. The rotation of the threaded ring 67 cooperates with the lead screw 66 to drive the movable core 5 to move toward the lower mold 3, and when the strip tooth groove 69 is disengaged from the annular tooth groove 68, the movable core 5 is tightly matched with the lower mold 3. When the upper mold 4 rises, it drives the extension arm 65 to rise. When the strip tooth groove 69 rises and meshes with the annular tooth groove 68 again, it drives the threaded ring 67 to rotate in the opposite direction, so that the movable core 5 slides in the direction away from the lower mold 3, so that the movable core 5 is separated from the low-voltage connector insert.

[0033] Please see attached Figure 8 The upper mold 4 includes a connecting body 41, a cleaning port 42 is opened at the center of the connecting body 41, a T-shaped template 43 is inserted into the cleaning port 42, an injection port 12 is opened on the surface of the template 43, and a cleaning component 9 is installed on the surface of the mounting plate 14, the upper mold 4 and the connecting seat 62.

[0034] Specifically, the injection port 12 is used to inject raw materials into the mold cavity, and the cleaning component 9 is used to shear the casting material remaining on the upper surface of the low-pressure connector insert due to the injection port 12.

[0035] Please see attached Figure 8 -Attached Fig. 9 The cleaning assembly 9 includes a cleaning tool 91 and a connecting column 92. The cleaning tool 91 is slidably installed inside the cleaning port 42. The two ends of the connecting column 92 are fixedly connected to the lower surface of the template 43 and the lower surface of the connecting seat 62 respectively.

[0036] Specifically, the length of the connecting column 92 is consistent with the minimum contraction amplitude of the telescopic rod 63. When the telescopic rod 63 is contracted to the minimum amplitude, the template 43 is inserted into the interior of the cleaning port 42, and the cavity is located in the lower area of ​​the template 43, so that the template 43, the lower mold 3 and the moving core 5 cooperate to form the cavity.

[0037] Please see attached Fig. 9One end of the cleaning tool 91 is fixedly connected to a tension spring 93 , and the other end of the tension spring 93 is fixedly mounted on the inner wall of the cleaning port 42 .

[0038] Specifically, the cleaning tool 91 is subjected to a pulling force by the tension of the tension spring 93 , so that the cleaning tool 91 is offset from the template 43 .

[0039] Please see attached Fig. 9 A connecting rope 94 is fixedly connected to the upper surface of the cleaning tool 91, and the other end of the connecting rope 94 is fixedly connected to the lower surface of the connecting seat 62. A guide seat 95 is provided on the surface of the connecting rope 94, and the bottom end of the guide seat 95 is fixedly connected to the upper surface of the template 43.

[0040] Specifically, the guide seat 95 is used to guide the moving direction of the connecting rope 94. The cylinder 2 61 is extended to drive the upper mold 4 to press against the lower mold 3, so that the telescopic rod 63 is gradually contracted to the minimum amplitude. At this time, the distance between the connecting seat 62 and the cleaning tool 91 is reduced, so that the connecting rope 94 remains loose. The cleaning tool 91 is kept on one side of the template 43 under the tension of the tension spring 93, so that the template 43 can be inserted into the inside of the cleaning port 42. When demolding, the cylinder 2 61 is contracted to drive the telescopic rod 63 to gradually extend. Before the telescopic rod 63 is contracted to the maximum amplitude, the elastic member 64 will A downward pressure is applied to the connection body 41 so that the connection body 41 remains stationary. The cleaning tool 91 also remains stationary, and the template 43 rises following the movement of the connection seat 62, thereby opening the cleaning port 42 to facilitate the subsequent insertion of the cleaning tool 91. When the connection seat 62 rises, the cleaning tool 91 is pulled by the connecting rope 94 to slide in the direction of the low-voltage connector insert, and then the cleaning tool 91 is used to remove the casting material remaining on the upper surface of the low-voltage connector insert, thereby achieving the effect of automatically shearing the casting material remaining on the surface of the low-voltage connector insert.

[0041] Please see attached Figure 7 The lower surface of the upper mold 4 is symmetrically fixedly connected with a positioning column 15, and the outer side of the positioning column 15 is inserted with a positioning cylinder 16, the bottom end of the positioning cylinder 16 is fixedly connected to the upper surface of the mounting plate 14, and the positioning cylinder 16 is located directly below the positioning column 15.

[0042] Specifically, when the upper mold 4 abuts against the lower mold 3 , the positioning column 15 is aligned and inserted into the interior of the positioning cylinder 16 , thereby improving the stability of the upper mold 4 and the lower mold 3 when the mold is closed.

[0043] Please see attached Fig. 9 A through hole 17 is opened on the surface of the connecting seat 62, and a cleaning column 18 is arranged above the through hole 17. The cleaning column 18 is located directly above the injection port 12. The bottom end of the cleaning column 18 is fixedly connected to an annular cleaning head 19. The diameter of the cleaning head 19 is the same as the diameter of the pouring port. The top of the cleaning column 18 is fixedly connected to the inner top wall of the frame 1.

[0044] Specifically, the cleaning blade head 19 is located directly above the injection port 12 . When the upper mold 4 rises, the cleaning blade head 19 will automatically insert into the inner wall of the injection port 12 , thereby automatically cleaning the residues in the injection port 12 .

[0045] 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 low-voltage connector injection molding device for a motor, comprising a frame (1), a processing table (2) being fixedly connected to the upper surface of the frame (1), characterized in that: The upper surface of the processing table (2) is provided with an opening, a lower mold (3) is installed in the opening, a mounting plate (14) is provided on the outer side of the lower mold (3), the lower surface of the mounting plate (14) is fixedly connected to the top of the processing table (2), an upper mold (4) is installed above the lower mold (3), a movable core (5) is installed on both sides of the lower mold (3), and a transmission component (6) is installed on the surface of the upper mold (4), the transmission component (6) is used to drive the upper mold (4) to move vertically and the movable core (5) to move horizontally, A U-shaped base (7) is installed below the lower mold (3), one end of the base (7) is rotatably connected to one end of the lower mold (3) via a shaft, a demoulding assembly (8) is installed below the lower mold (3), the demoulding assembly (8) comprises a cylinder (81) and a limit block (82), the outer wall of the cylinder (81) is fixedly connected to the upper surface of the frame (1), the driving end of the cylinder (81) is fixedly connected to the lower surface of the base (7), and the bottom end of the limit block (82) is fixedly connected to the upper surface of the frame (1).

2. The low-voltage connector injection molding equipment for motors according to claim 1, characterized in that: The demoulding assembly (8) further comprises a notch (83), wherein the notch (83) is formed on the surface of the base (7), a T-shaped limiting rod (84) is arranged inside the notch (83), and the top end of the limiting rod (84) is fixedly connected to the lower surface of the lower mold (3).

3. The low-voltage connector injection molding equipment for motors according to claim 1, characterized in that: The transmission assembly (6) comprises a second cylinder (61) and a lead screw (66); the outer wall of the second cylinder (61) is fixedly connected to the top of the frame (1); the driving end of the second cylinder (61) is fixedly connected to a connecting seat (62); the bottom end of the connecting seat (62) is fixedly connected to a telescopic rod (63); the bottom end of the telescopic rod (63) is fixedly connected to the upper surface of the upper mold (4); and the bottom end of the movable core (5) is slidably connected to the upper surface of the mounting plate (14).

4. The low-voltage connector injection molding equipment for motors according to claim 3 is characterized in that: An elastic member (64) is sleeved on the outer side of the telescopic rod (63), the upper mold (4) is configured in a cross shape, an extension arm (65) is symmetrically fixedly connected to the lower surface of the upper mold (4), and one end of the lead screw (66) is fixedly connected to the outer wall of the movable core (5).

5. The low-voltage connector injection molding equipment for motors according to claim 4, characterized in that: The outer wall of the lead screw (66) is threadedly connected with a threaded ring (67), one end of the threaded ring (67) is rotatably connected to the outer wall of the mounting plate (14), the outer wall of the threaded ring (67) is provided with an annular tooth groove (68), and the outer side wall of the extension arm (65) is provided with a strip tooth groove (69), and the annular tooth groove (68) can be meshedly connected with the strip tooth groove (69).

6. The low-voltage connector injection molding equipment for motors according to claim 3, characterized in that: The upper mold (4) comprises a connecting body (41), a cleaning port (42) is provided at the center of the connecting body (41), a T-shaped template (43) is inserted into the interior of the cleaning port (42), an injection port (12) is provided on the surface of the template (43), and a cleaning assembly (9) is installed on the surfaces of the mounting plate (14), the upper mold (4) and the connecting seat (62).

7. The low-voltage connector injection molding equipment for motors according to claim 6, characterized in that: The cleaning assembly (9) comprises a cleaning tool (91) and a connecting column (92); the cleaning tool (91) is slidably mounted inside the cleaning port (42); and two ends of the connecting column (92) are fixedly connected to the lower surface of the template (43) and the lower surface of the connecting seat (62), respectively.

8. The low-voltage connector injection molding equipment for motors according to claim 7, characterized in that: One end of the cleaning tool (91) is fixedly connected to a tension spring (93), and the other end of the tension spring (93) is fixedly mounted on the inner wall of the cleaning opening (42).

9. The low-voltage connector injection molding equipment for motors according to claim 7, characterized in that: A connecting rope (94) is fixedly connected to the upper surface of the cleaning tool (91), the other end of the connecting rope (94) is fixedly connected to the lower surface of the connecting seat (62), a guide seat (95) is provided through the surface of the connecting rope (94), and the bottom end of the guide seat (95) is fixedly connected to the upper surface of the template (43).

10. The low-voltage connector injection molding equipment for motors according to claim 1, characterized in that: A positioning column (15) is symmetrically fixedly connected to the lower surface of the upper mold (4), a positioning cylinder (16) is inserted and arranged on the outer side of the positioning column (15), and the bottom end of the positioning cylinder (16) is fixedly connected to the upper surface of the mounting plate (14).

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