Injection molding device for keyboard key production

Abstract

The present invention relates to the field of keyboard key injection molding technology, and in particular to an injection molding device for keyboard key production, including a lower mold and a support plate symmetrically fixed to the lower mold, a mounting frame fixed between the support plates, an electric lifting plate installed on the mounting frame, and an upper mold located directly above the lower mold fixed on the electric lifting plate. The present invention discharges the injection molding liquid into the lower mold, and the lower mold cooperates with the upper mold to injection-mold the injection molding liquid so that the injection molding liquid is injection-molded into keyboard keys. After the keyboard keys are injection-molded, the electric lifting plate is started to move upward to drive the upper mold to move upward, and the limiting rod first limits the keyboard keys so that the keyboard keys are separated from the upper mold to complete demolding, and then the stripping rod moves upward again to drive the keyboard keys to move upward and separate from the lower mold to complete demolding, which can prevent the keyboard keys from adhering to the lower mold and being difficult to demold, affecting the efficiency of subsequent injection molding, thereby improving the efficiency of keyboard key injection molding.

Description

Technical Field

[0001] The invention relates to the technical field of keyboard key injection molding, and in particular to an injection molding device for keyboard key production. Background Art

[0002] During the keyboard production process, keyboard keys need to be produced. The keyboard keys are processed by injection molding, which requires the use of molds for injection molding.

[0003] A Chinese patent with announcement number CN117656386A discloses a keyboard key injection molding device, including a support base, two support plates are fixedly arranged on the support base, side walls of the two support plates are rotatably provided with rotating shafts, the same lower mold is fixedly arranged between the two rotating shafts, an L-shaped bracket is fixedly arranged on the support base, a hydraulic rod is fixedly arranged on the top of the L-shaped bracket, the output shaft of the hydraulic rod passes through the L-shaped bracket and is fixedly provided with an upper mold, the bottom of the upper mold is located between multiple modules and has multiple cavities, the tops of the multiple cavities are fixedly provided with springs, the bottoms of the multiple springs extend out of the cavities and are fixedly provided with ejector blocks. Although the above patent can eject the molded keyboard keys from the upper mold, since the keyboard keys are cooled and molded in the lower mold, some keyboard keys will adhere to the lower mold, making it difficult to demold, and manual demolding is required, affecting the subsequent injection molding efficiency of the keyboard keys.

[0004] The present invention aims to solve the problems existing in the above patents. To this end, an injection molding device for keyboard key production is proposed, which can eject keyboard keys from the lower mold to complete demolding and improve the efficiency of keyboard key injection molding. Summary of the invention

[0005] In order to overcome the disadvantage that although the above patent can eject the molded keyboard keys from the upper mold, since the keyboard keys are cooled and molded in the lower mold, some keyboard keys will adhere to the lower mold, making it difficult to demold, and manual demolding is required, which affects the subsequent injection molding efficiency of the keyboard keys, the present invention provides an injection molding device for keyboard key production that can eject the keyboard keys from the lower mold to complete demolding and improve the injection molding efficiency of the keyboard keys.

[0006] The present invention is achieved through the following technical solutions:

[0007] An injection molding device for keyboard key production, comprising a lower mold and a support plate symmetrically fixed to the lower mold, a mounting frame fixed between the support plates, an electric lifting plate installed on the mounting frame, an upper mold located directly above the lower mold fixedly connected to the electric lifting plate, characterized in that it also includes a stripper rod, a high temperature resistant sealing ring I, a movable plate, a reset spring, an electromagnet, a limit assembly and a cutting assembly, the cutting assembly is installed between the lower mold and the mounting frame, and is used to cut off the waste between the keyboard keys, the lower mold is evenly spaced and slidably penetrated with stripper rods, the lower mold is evenly spaced and embedded with high temperature resistant sealing rings I, a high temperature resistant The inner side of the high-temperature sealing ring I is slidably connected to the stripping rod to seal the gap between the stripping rod and the lower mold. A movable plate is fixed between the bottom ends of all the stripping rods. The movable plate is made of iron. Reset springs sleeved on the stripping rod are symmetrically connected between the movable plate and the lower mold. An electromagnet located above the movable plate is symmetrically installed at the bottom of the lower mold. The limit assembly is installed on the upper mold. The limit assembly is used to limit the keyboard keys to complete the stripping from the upper mold. At the same time, the limit assembly drives the movable plate to move upward, and the movable plate drives the stripping rod to move upward, so that the stripping rod drives the keyboard keys to move upward and separate from the lower mold to complete the stripping process.

[0008] Further explanation, the limit assembly includes a slide plate which is slidably mounted on the upper mold, a compression spring is symmetrically connected between the slide plate and the upper mold, a limit rod is evenly spaced and fixed on the slide plate, the limit rod slides through the upper mold to limit the keyboard keys, and a high-temperature resistant sealing ring II is evenly spaced and embedded and fixed on the upper mold, the inner side of the high-temperature resistant sealing ring II is slidably connected to the limit rod to seal the gap between the limit rod and the upper mold; a magnetic plate is fixed on the slide plate, and the magnetic plate is in magnetic contact with the movable plate.

[0009] Further explanation, the cutting assembly includes a U-shaped plate fixed to the mounting frame, a cutter is slidably connected to the U-shaped plate, and is used to cut off waste materials on the keyboard keys. A connecting spring I is symmetrically connected between the cutter and the U-shaped plate. Fixed plates are symmetrically fixed to the left and right sides of the mounting frame, and a screw is rotatably connected between the front and rear fixed plates. The left and right screws are driven by a synchronous belt assembly, and a pusher plate located above the lower mold is threadedly connected between the left and right screws to drive the keyboard keys to move backward. A driving assembly is arranged between the screw and the cutter to drive the screw to rotate and the cutter to move.

[0010] Further explanation, the drive assembly includes a bevel gear fixedly mounted on the screw rod, a slotted hole plate fixedly connected to the cutter, a drive motor mounted on one of the fixed plates, a toothed disk meshing with the bevel gear fixedly connected to the end of the output shaft of the drive motor, and a contact rod located in the slotted hole plate fixedly connected to the eccentric position of the toothed disk to drive the slotted hole plate to move up and down.

[0011] Further explanation, the injection molding device for keyboard key production also includes a positioning assembly, the positioning assembly includes a guide rod slidably connected to the fixed plate, a positioning plate is fixedly connected between the ends of the front and rear guide rods close to the upper mold to center the keyboard keys, the front side of the positioning plate is an inclined surface, a connecting spring II is connected between the positioning plate and the fixed plate, a driving rod is symmetrically fixed to the top of the push plate, the driving rod is in contact with the inclined surface of the positioning plate to drive the positioning plate to move.

[0012] Further explanation, the injection molding device for keyboard key production also includes a clamping assembly, which includes a guide plate symmetrically fixed to the cutter, a pressure plate vertically slidingly inserted on the guide plate to clamp and limit the waste between the keyboard keys, and a connecting spring III is connected between the pressure plate and the guide plate.

[0013] As a further explanation, the injection molding device for keyboard key production also includes a guide plate symmetrically fixed to the lower mold to guide the fallen keyboard keys.

[0014] As a further explanation, the injection molding device for keyboard key production also includes a cooling pipe fixedly connected to the lower mold to cool the keyboard keys after molding.

[0015] The beneficial effects of the present invention are:

[0016] 1. The injection molding liquid is discharged into the lower mold, and the lower mold cooperates with the upper mold to injection mold the injection molding liquid, so that the injection molding liquid is injected into the keyboard keys. After the keyboard keys are injection molded, the electric lifting plate is started to move upward to drive the upper mold to move upward. The limit rod first limits the keyboard keys, so that the keyboard keys are separated from the upper mold to complete the demolding. Then the stripping rod moves upward again to drive the keyboard keys to move upward and separate from the lower mold to complete the demolding, which can prevent the keyboard keys from adhering to the lower mold and making it difficult to demold, affecting the subsequent injection molding efficiency, thereby improving the efficiency of the keyboard key injection molding.

[0017] 2. Under the action of the cutter, whenever the push plate drives the keyboard keys after injection molding to move backward to the specified position, the cutter moves downward to cut off the waste on the keyboard keys, so that the waste can be cut off without subsequent manual operation, thereby improving work efficiency.

[0018] 3. Under the action of the positioning plate, whenever the push plate drives the keyboard keys to move backward to be cut off the waste, the positioning plate can first center the keyboard keys, and then the keyboard keys continue to move backward to the cutting position, which can prevent the keyboard keys from being offset during the backward movement and affecting the cutting of the waste, thereby ensuring the accurate cutting of the keyboard key waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0020] Figure 2 It is a schematic diagram of the three-dimensional structure after the upper mold and the lower mold are separated from each other in the present invention.

[0021] Figure 3 It is a three-dimensional structural schematic diagram of the limiting assembly and the stripping rod of the present invention.

[0022] Figure 4 It is a three-dimensional structural schematic diagram of the lower mold and the stripper rod of the present invention.

[0023] Figure 5 It is a schematic diagram of the three-dimensional structure of the limiting component of the present invention.

[0024] Figure 6 It is a schematic diagram of the three-dimensional structure of the cutting assembly of the present invention.

[0025] Figure 7 It is a schematic diagram of the three-dimensional structure of the straight hole plate and the contact rod of the present invention.

[0026] Figure 8 It is a schematic diagram of the three-dimensional structure of the positioning component of the present invention.

[0027] Fig. 9 It is a schematic diagram of the three-dimensional structure of the clamping assembly of the present invention.

[0028] Fig.10 It is a schematic diagram of the three-dimensional structure of the material guide plate of the present invention.

[0029] Fig.11 It is a schematic diagram of the three-dimensional structure of the cooling tube of the present invention.

[0030] In the above drawings: 1: lower mold, 2: support plate, 3: mounting frame, 4: electric lifting plate, 5: upper mold, 6: stripping rod, 61: high temperature resistant sealing ring I, 7: movable plate, 8: reset spring, 9: electromagnet, 10: slide plate, 101: magnetic plate, 102: compression spring, 103: limit rod, 104: high temperature resistant sealing ring II, 11: U-shaped plate, 111: cutter, 112: connecting spring I, 113: push plate, 114: fixed plate, 115: screw, 116: drive motor, 117: missing tooth plate, 118: bevel gear, 119: one-shaped hole plate, 1110: contact rod, 12: guide rod, 121: positioning plate, 122: connecting spring II, 123: driving rod, 13: guide plate, 131: pressure plate, 132: connecting spring III, 14: guide plate, 15: cooling pipe. DETAILED DESCRIPTION

[0031] First of all, it should be pointed out that in the different described embodiments, the same parts are provided with the same reference numerals or the same component names, wherein the disclosure contained in the entire description can be transferred to the same parts with the same reference numerals or the same component names. Selected positional descriptions in the description, such as top, bottom, lateral, etc., also refer to the directly described and shown figures and are transferred to the new positions in the case of a change in position.

[0032] Embodiment: An injection molding device for keyboard key production, see Figure 1-Figure 7 As shown, it includes a lower mold 1 and a support plate 2 symmetrically fixed to the lower mold 1, a mounting frame 3 is fixed between the upper parts of the left and right support plates 2, an electric lifting plate 4 is installed in the middle of the top of the mounting frame 3, and an upper mold 5 is fixed at the bottom of the electric lifting plate 4. The upper mold 5 is located directly above the lower mold 1, and also includes a stripper rod 6, a high-temperature resistant sealing ring Ⅰ61, a movable plate 7, a reset spring 8, an electromagnet 9, a limit assembly and a cutting assembly. The cutting assembly is installed between the lower mold 1 and the mounting frame 3. When the cutting assembly is in operation, the cutting assembly can cut off the waste between the keyboard keys. The lower mold 1 is evenly spaced and slidably penetrated with stripper rods 6, and the lower mold 1 is evenly spaced and embedded with high-temperature resistant sealing rings Ⅰ61. The high-temperature resistant sealing rings Ⅰ61 are fixed. The inner side is slidingly connected to the stripping rod 6, and the high temperature resistant sealing ring Ⅰ61 can seal the gap between the stripping rod 6 and the lower mold 1. A movable plate 7 is fixed between the bottom ends of all the stripping rods 6. The material of the movable plate 7 is iron. A reset spring 8 is symmetrically connected between the top of the movable plate 7 and the bottom of the lower mold 1. The reset spring 8 is sleeved on the stripping rod 6. An electromagnet 9 is symmetrically installed at the bottom of the lower mold 1. The electromagnet 9 is located above the movable plate 7. The limit assembly is installed on the upper mold 5. The limit assembly is used to limit the keyboard keys to complete the demoulding from the upper mold 5. At the same time, the limit assembly drives the movable plate 7 to move upward, and the movable plate 7 drives the stripping rod 6 to move upward, so that the stripping rod 6 drives the keyboard keys to move upward and separate from the lower mold 1 to complete the demoulding process.

[0033] See also Figure 3 and Figure 5As shown, the limit assembly includes a slide plate 10, a magnetic plate 101, a compression spring 102, a limit rod 103 and a high temperature resistant sealing ring II 104. The upper mold 5 is slidably mounted with the slide plate 10, and a compression spring 102 is symmetrically connected between the bottom of the slide plate 10 and the top of the upper mold 5. The bottom of the slide plate 10 is evenly fixedly connected to the limit rod 103, and the limit rod 103 slides through the upper mold 5. When the limit rod 103 contacts the keyboard keys, the limit rod 103 can limit the keyboard keys. The upper mold 5 is evenly spaced and embedded with a high temperature resistant sealing ring II 104, and the inner side of the high temperature resistant sealing ring II 104 is slidably connected to the limit rod 103, and the high temperature resistant sealing ring II 104 can seal the gap between the limit rod 103 and the upper mold 5. A magnetic plate 101 is fixedly connected to the middle of the front side of the slide plate 10, and the bottom of the magnetic plate 101 is in magnetic contact with the front side of the top of the movable plate 7.

[0034] See also Figure 6 and Figure 7 As shown, the cutting assembly includes a U-shaped plate 11, a cutter 111, a connecting spring Ⅰ112, a push plate 113, a fixed plate 114, a screw 115 and a driving assembly. The U-shaped plate 11 is fixedly connected to the lower part of the rear side of the mounting frame 3, and the cutter 111 is slidably connected to the rear side of the U-shaped plate 11. When the cutter 111 moves downward, the cutter 111 can cut off the waste on the keyboard keys. The connecting spring Ⅰ112 is symmetrically connected between the upper part of the cutter 111 and the top of the U-shaped plate 11. The lower parts of the left and right sides of the mounting frame 3 are symmetrically fixed to the fixed plates 114 front and back. The screws 115 are rotatably connected between the fixed plates 114 on the front and rear sides. The front sides of the left and right screws 115 are connected by a synchronous belt assembly. The push plate 113 is threadedly connected between the left and right screws 115. The push plate 113 is located above the lower mold 1. When the push plate 113 moves backward, the push plate 113 can be Now the keyboard keys are driven to move backward, and a driving assembly is arranged between the screw rod 115 and the cutter 111. When the driving assembly is in operation, the driving assembly can drive the screw rod 115 to rotate and the cutter 111 to move; the driving assembly includes a driving motor 116, a toothed disc 117, a bevel gear 118, a straight hole plate 119 and a contact rod 1110. The rear side of the screw rod 115 on the right side is fixedly sleeved with a bevel gear 118, and the right side of the cutter 111 is fixedly connected to the straight hole plate 119, and the rear side of the fixed plate 114 on the right rear side is installed with a driving motor 116. The output shaft end of the driving motor 116 is fixedly connected with a toothed disc 117, and the toothed disc 117 is meshed with the bevel gear 118. The contact rod 1110 is fixedly connected to the eccentric position of the left side of the toothed disc 117. The contact rod 1110 is located in the straight hole plate 119. When the contact rod 1110 rotates, the contact rod 1110 can drive the straight hole plate 119 to move up and down.

[0035] First, connect the lower mold 1 to a machine for discharging injection molding liquid, and then start the machine to discharge an appropriate amount of injection molding liquid into the lower mold 1. The injection molding liquid in the lower mold 1 contacts the upper mold 5, and the upper mold 5 cooperates with the lower mold 1 to complete the injection molding operation. The injection molding liquid is injected into the keyboard keys through the upper mold 5 and the lower mold 1. The high temperature resistant sealing ring Ⅰ61 can prevent the injection molding liquid from flowing into the gap between the stripping rod 6 and the lower mold 1, and the high temperature resistant sealing ring Ⅱ104 can prevent the injection molding liquid from flowing into the gap between the limit rod 103 and the upper mold 5. When the keyboard keys are cooled and formed, start the electric lifting plate 4 to move upward. Due to the magnetic contact between the magnetic plate 101 and the movable plate 7, the magnetic plate 101 makes the slide plate 10 not move first, and the slide plate 10 makes the limit rod 103 stationary. The electric lifting plate 4 is brought The movable upper mold 5 moves upward, the compression spring 102 is compressed, and since the limit rod 103 is stationary, the limit rod 103 limits the keyboard keys, and the upper mold 5 moves upward and breaks contact with the keyboard keys to complete demoulding. When the compression spring 102 is compressed to the maximum stroke, the upper mold 5 continues to move upward and drives the slide plate 10 upward through the compression spring 102, and the slide plate 10 drives the magnetic plate 101 upward, and the magnetic plate 101 drives the movable plate 7 upward, and the reset spring 8 is compressed, and the movable plate 7 moves upward to drive the stripping rod 6 to move upward, and the stripping rod 6 moves upward to drive the keyboard keys upward, so that the keyboard keys are separated from the lower mold 1 to complete the demoulding process, which can prevent the keyboard keys from adhering to the lower mold 1 and making it difficult to demould and affect the subsequent injection molding. The efficiency of the keyboard key injection molding is improved. When the movable plate 7 moves upward and contacts the electromagnet 9, the electromagnet 9 is started to magnetically adsorb the movable plate 7, and the movable plate 7 stops moving upward. The movable plate 7 stops the stripping rod 6 from moving upward, and the stripping rod 6 stops driving the keyboard keys to move upward. Then the magnetic plate 101 continues to move upward and disengages from the movable plate 7, and the slide plate 10 continues to move upward to drive the limit rod 103 to move upward, and the limit rod 103 moves upward and disengages from the keyboard keys. When the upper mold 5 moves upward to the specified position, the electric lifting plate 4 is closed. Due to the action of the compression spring 102, the slide plate 10 slides and resets, driving the limit rod 103 to reset and retract into the upper mold 5. Then the drive motor 116 is started to rotate forward to drive the missing teeth The disc 117 rotates forward, and the toothless disc 117 rotates forward to drive the contact rod 1110 to rotate forward. The contact rod 1110 first drives the slotted hole plate 119 to move downward, and the slotted hole plate 119 drives the cutter 111 to move downward. The connecting spring Ⅰ112 is compressed. When the slotted hole plate 119 moves downward to the maximum stroke, the contact rod 1110 continues to rotate forward to drive the slotted hole plate 119 to move upward, and the slotted hole plate 119 drives the cutter 111 to move upward. The connecting spring Ⅰ112 is reset. When the toothless disc 117 continues to rotate forward and meshes with the bevel gear 118, the toothless disc 117 drives the bevel gear 118 to rotate, and the bevel gear 118 drives the screw 115 to rotate, and the screw 115 drives the push plate 113 to move backward. The push plate 113 moves backward and drives the keyboard keys to move backward.When the keyboard keys move backward to the bottom of the cutter 111, and the toothed disc 117 continues to rotate and disengages from the bevel gear 118, the bevel gear 118 stops rotating, and the push plate 113 stops pushing the keyboard keys backward. At this time, the cutter 111 continues to move downward to cut off the waste between the keyboard keys, so that the adjacent keyboard keys are separated, and the keyboard keys with the waste removed fall downward to be collected. This is repeated, and the waste on the keyboard keys can be continuously removed, so that the waste can be removed without subsequent manual operation, thereby improving work efficiency. When all the waste on the keyboard keys is removed, the drive motor 116 is started to drive the toothed disc 117 to reverse, so that the screw 115 drives the push plate 113 to move forward and reset, and then the electric lifting plate 4 is started to drive the upper mold 5 to move downward and reset. The upper mold 5 drives the slide plate 10 to move downward and reset through the compression spring 102, and the slide plate 10 drives the magnetic plate 101 to move downward and reset. The magnetic plate 101 resets and magnetically contacts the movable plate 7, and then the collected keyboard keys are subsequently processed.

[0036] See also Figure 8 As shown, the injection molding device for keyboard key production also includes a positioning component installed between the fixed plate 114 and the push plate 113, the positioning component includes a guide rod 12, a positioning plate 121, a connecting spring II 122 and a driving rod 123, the tops of the front and rear fixed plates 114 are slidably connected with the guide rod 12, and the ends of the front and rear guide rods 12 close to the upper mold 5 are fixedly connected with the positioning plate 121. When the positioning plate 121 moves to contact the keyboard key, the positioning plate 121 can realize the center positioning of the keyboard key. The front side of the positioning plate 121 is an inclined surface, and the sides of the left and right positioning plates 121 that are away from each other are respectively connected with the connecting spring II 122 between the left and right fixed plates 114, and the top of the push plate 113 is symmetrically fixed with the driving rod 123, and the left and right driving rods 123 are respectively in contact with the inclined surfaces of the left and right positioning plates 121. When the driving rod 123 moves backward, the driving rod 123 can drive the positioning plate 121 to move.

[0037] See also Fig. 9 As shown, the injection molding device for keyboard key production also includes a clamping assembly installed on the cutter 111, and the clamping assembly includes a guide plate 13, a pressure plate 131 and a connecting spring III 132. The cutter 111 is symmetrically fixed with the guide plate 13, and the left and right guide plates 13 are vertically slidably penetrated with the pressure plates 131. When the pressure plate 131 moves downward and contacts the waste material between the keyboard keys, the pressure plate 131 can clamp and limit the waste material between the keyboard keys. The tops of the left and right pressure plates 131 are respectively connected to the bottoms of the left and right guide plates 13 with connecting springs III 132.

[0038] When the push plate 113 moves backward, the push plate 113 drives the driving rod 123 to move backward, and the driving rod 123 drives the left and right positioning plates 121 to move in a direction close to each other, the connecting spring II 122 is stretched, and the left and right positioning plates 121 move in a direction close to each other and contact the keyboard keys, and the left and right positioning plates 121 center the keyboard keys, and then the driving rod 123 continues to move backward and disengages from the inclined surface of the positioning plate 121, and the driving rod 123 stops driving the left and right positioning plates 121 to move in a direction close to each other, at this time, the push plate 113 pushes the keyboard keys after centering to move backward and the waste is cut off. When all the waste of the keyboard keys is cut off, the push plate 113 moves forward to reset and drives the driving rod 123 to move forward to reset, and the driving rod 123 resets and stops limiting the positioning plate 121, and due to the action of the connecting spring II 122, the left and right positioning plates 121 move in a direction away from each other and reset. In this way, the keyboard keys can be prevented from being offset in the process of moving backwards, which would affect the removal of waste materials, thereby ensuring accurate removal of keyboard key waste materials.

[0039] When the cutter 111 moves downward, the cutter 111 drives the guide plate 13 to move downward, and the guide plate 13 drives the pressure plate 131 to move downward through the connection spring III 132. The pressure plate 131 moves downward and first contacts the waste material between the keyboard keys. The pressure plate 131 presses and fixes the waste material between the keyboard keys, so that the keyboard keys are limited. The pressure plate 131 stops moving downward, and the guide plate 13 continues to move downward to compress the connection spring III 132. Then the cutter 111 continues to move downward to cut the waste material on the keyboard keys. When the cutter 111 moves upward to reset, the cutter 111 drives the guide plate 13 to move upward, and the guide plate 13 resets the connection spring III 132. Then the guide plate 13 continues to move upward to reset and drives the pressure plate 131 to move upward to reset through the connection spring III 132. In this way, the keyboard keys can be prevented from tilting and affecting the removal of waste material, thereby ensuring the normal removal of waste material on the keyboard keys.

[0040] See also Fig.10 As shown, the injection molding device for keyboard key production also includes a guide plate 14, and the guide plate 14 is symmetrically fixed to the rear side of the lower mold 1. When the keyboard keys fall, the guide plate 14 can guide the fallen keyboard keys.

[0041] See also Fig.11 As shown, the injection molding device for keyboard key production also includes a cooling pipe 15. The cooling pipe 15 is fixedly connected to the lower mold 1, and the cooling pipe 15 can cool the keyboard keys after molding.

[0042] When the keyboard keys fall, they contact the guide plate 14, which guides the keyboard keys, and the guided keyboard keys fall accurately into the collection container. In this way, the keyboard keys can be prevented from falling outside the collection container and affecting the collection, thereby ensuring the accurate collection of the keyboard keys.

[0043] When the injection liquid is discharged into the lower mold 1 to be injection molded into keyboard keys, the cooling liquid is connected to the cooling pipe 15, and the cooling liquid flows in the cooling pipe 15, and the keyboard keys are also cooled through the cooling pipe 15. In this way, the cooling molding of the keyboard keys can be accelerated, thereby improving the efficiency of injection molding.

[0044] Finally, it is necessary to point out that the above content is only used to help understand the technical solution of the present invention and cannot be understood as limiting the scope of protection of the present invention; non-essential improvements and adjustments made by technical personnel in the field of technology based on the above content of the present invention are all within the scope of protection required by the present invention.

Claims

1. An injection molding device for keyboard key production, comprising a lower mold (1) and a support plate (2) symmetrically fixed to the lower mold (1), a mounting frame (3) fixed between the support plates (2), an electric lifting plate (4) mounted on the mounting frame (3), an upper mold (5) located directly above the lower mold (1) fixedly connected to the electric lifting plate (4), characterized in that: The keyboard also includes a stripper rod (6), a high temperature resistant sealing ring I (61), a movable plate (7), a reset spring (8), an electromagnet (9), a limit assembly and a cutting assembly. The cutting assembly is installed between the lower mold (1) and the mounting frame (3) and is used to cut off the waste material between the keyboard keys. The lower mold (1) is evenly spaced and slidably connected with the stripper rod (6). The lower mold (1) is evenly spaced and embedded with a high temperature resistant sealing ring I (61). The inner side of the high temperature resistant sealing ring I (61) is slidably connected to the stripper rod (6) to seal the gap between the stripper rod (6) and the lower mold (1). The bottom end of all the stripper rods (6) is connected to the lower mold (1). A movable plate (7) is fixedly connected between the movable plate (7), the material of the movable plate (7) is iron, a return spring (8) sleeved on the stripping rod (6) is symmetrically connected between the movable plate (7) and the lower mold (1), and an electromagnet (9) located above the movable plate (7) is symmetrically installed at the bottom of the lower mold (1), and the limit assembly is installed on the upper mold (5), and the limit assembly is used to limit the keyboard keys to complete the demoulding from the upper mold (5), and at the same time, the limit assembly drives the movable plate (7) to move upward, and the movable plate (7) drives the stripping rod (6) to move upward, so that the stripping rod (6) drives the keyboard keys to move upward and separate from the lower mold (1) to complete the demoulding process; The limiting assembly comprises a slide plate (10) which is slidably mounted on the upper mold (5), a compression spring (102) is symmetrically connected between the slide plate (10) and the upper mold (5), a limiting rod (103) is fixedly connected to the slide plate (10) at uniform intervals, the limiting rod (103) slidably penetrates the upper mold (5) to limit the keyboard keys, a high-temperature resistant sealing ring II (104) is embeddedly fixedly connected to the upper mold (5) at uniform intervals, the inner side of the high-temperature resistant sealing ring II (104) is slidably connected to the limiting rod (103) to seal the gap between the limiting rod (103) and the upper mold (5), and a magnetic plate (101) is fixedly connected to the slide plate (10), and the magnetic plate (101) is in magnetic contact with the movable plate (7); The cutting assembly comprises a U-shaped plate (11) fixedly connected to the mounting frame (3), a cutter (111) slidably connected to the U-shaped plate (11) for cutting off waste material on keyboard keys, a connecting spring I (112) symmetrically connected between the cutter (111) and the U-shaped plate (11), a fixing plate (114) symmetrically fixedly connected to the left and right sides of the mounting frame (3), a screw rod (115) rotatably connected between the front and rear fixing plates (114), a synchronous belt assembly is used to drive the left and right screw rods (115), a push plate (113) located above the lower mold (1) is threadedly connected between the left and right screw rods (115) to drive the keyboard keys to move backward, and a driving assembly is provided between the screw rod (115) and the cutter (111) for driving the screw rod (115) to rotate and the cutter (111) to move; The driving assembly comprises a bevel gear (118) fixedly sleeved on a screw rod (115); a slotted hole plate (119) is fixedly connected to the cutter (111); a driving motor (116) is mounted on one of the fixed plates (114); a toothed disk (117) meshing with the bevel gear (118) is fixedly connected to the end of the output shaft of the driving motor (116); a contact rod (1110) located in the slotted hole plate (119) is fixedly connected to an eccentric position of the toothed disk (117) to drive the slotted hole plate (119) to move up and down.

2. The injection molding device for keyboard key production according to claim 1, characterized in that: The injection molding device for producing keyboard keys also includes a positioning assembly, which includes a guide rod (12) slidably connected to a fixed plate (114), a positioning plate (121) fixedly connected between the ends of the front and rear guide rods (12) close to the upper mold (5) to centrally position the keyboard keys, the front side of the positioning plate (121) is an inclined surface, a connecting spring II (122) is connected between the positioning plate (121) and the fixed plate (114), and a driving rod (123) is symmetrically fixedly connected to the top of the push plate (113), and the driving rod (123) contacts the inclined surface of the positioning plate (121) to drive the positioning plate (121) to move.

3. The injection molding device for keyboard key production according to claim 2, characterized in that: The injection molding device for keyboard key production also includes a clamping assembly, which includes a guide plate (13) symmetrically fixed to the cutter (111), a pressing plate (131) vertically slidably penetrated on the guide plate (13) to clamp and limit waste materials between the keyboard keys, and a connecting spring III (132) is connected between the pressing plate (131) and the guide plate (13).

4. The injection molding device for keyboard key production according to claim 3, characterized in that: The injection molding device for producing keyboard keys also includes a guide plate (14) symmetrically fixed to the lower mold (1) to guide the fallen keyboard keys.

5. The injection molding device for keyboard key production according to claim 4, characterized in that: The injection molding device for producing keyboard keys also includes a cooling pipe (15) fixedly connected to the lower mold (1) to cool the keyboard keys after molding.

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