Injection molding device and process for comb

Abstract

The invention relates to the technical field of injection molding devices, and particularly discloses an injection molding device for a comb, comprising: a frame provided with two opening and closing molds; the supporting frame is arranged on the rack, and a sliding assembly is arranged at the top of the supporting frame; the lifting rod is arranged on the sliding assembly, a fixing disc is arranged at the bottom of the lifting rod, a disc support assembly is rotationally arranged at the bottom of the fixing disc, a spraying assembly and a clamping assembly are symmetrically arranged on the disc support assembly, and the disc support assembly can rotate by 180 degrees so that the spraying assembly can evenly spray a release agent to two molds. The protective cover is rotationally arranged on the disc support assembly. According to the injection molding device and process for the hair comb, the working efficiency of the whole working procedure is improved, the production time cost is saved, meanwhile, the opening and closing time of the two molds is shortened, heat loss on the molds is reduced, and the production quality of the hair comb is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of injection molding devices, and in particular to an injection molding device and a molding process for a hair comb. Background Art

[0002] Hair comb injection molding machine, also known as injection molding machine or injection machine, is an industrial machine mainly used to make plastic products in the shape of hair combs from thermoplastics or thermosetting plastics through plastic molding molds. The working principle of an injection molding machine is similar to that of a syringe. It uses the thrust of a screw or plunger to inject the plasticized molten plastic into a closed mold cavity at high pressure and speed. After cooling and solidification, a plastic product in the same shape as the hair comb mold is obtained.

[0003] In a Chinese patent with announcement number CN114953333B, an injection molding device is disclosed, including a shooting platform assembly, a plasticizing assembly and a screw assembly. The plasticizing assembly and the screw assembly are connected, and the screw assembly runs through the shooting platform assembly. The shooting platform assembly is provided with openings on both sides along the first direction, and the screw assembly drives the plasticizing assembly to perform a glue injection action on the shooting platform assembly. An injection molding machine is also provided, including the injection molding device as described above. The injection molding device and injection molding machine provided by the present invention change the installation direction of the plasticizing seat assembly, so that the shooting platform assembly is not easily deformed when subjected to force, and is easy to process. The injection guide rail is installed on the side wall of the bottom plate. When the shooting platform assembly is subjected to force, the slider moves in a direction perpendicular to the injection direction, and the guide rail and the slider are not easily damaged. Changing the installation position of the plasticizing assembly is easy to install and maintain.

[0004] The above patent document changes the installation direction of the plasticizing seat assembly so that the shooting platform seat assembly is not easily deformed when subjected to force, and is easy to install and maintain. However, the traditional injection molding machine needs to take out the product after injection molding, and then spray the release agent on the two molds, which leads to a decrease in work efficiency and causes the two molds to be opened and closed for a long time, thereby increasing the heat loss of the mold, affecting the quality and efficiency of subsequent product production. Summary of the invention

[0005] The present invention provides an injection molding device and molding process for a hair comb, aiming to solve the technical problems in the related art that a mold release agent is sprayed after the product is taken out after injection molding, resulting in reduced work efficiency, and that long-term opening and closing of the mold increases heat loss and affects product quality.

[0006] An injection molding device for a hair comb of the present invention comprises:

[0007] A frame, on which two opening and closing molds are arranged;

[0008] A support frame is arranged on the frame, a sliding assembly is arranged on the top of the support frame, and the sliding assembly is arranged in a T-shape so that the sliding assembly can move along the length and width direction of the frame;

[0009] A lifting rod is arranged on the sliding assembly, a fixed disk is arranged at the bottom of the lifting rod, a disc support assembly is rotatably arranged at the bottom of the fixed disk, and the sliding assembly and the lifting rod are used to drive the disc support assembly to move between the two molds;

[0010] The disc support assembly is symmetrically provided with a spray assembly and a clamping assembly, the spray assembly is used to spray a mold release agent on the mold, and the clamping assembly is used to take the hair comb after injection molding, and the disc support assembly can rotate 180 degrees so that the spray assembly can evenly spray the mold release agent on the two molds;

[0011] The protective cover is rotatably arranged on the disc support assembly, and is used for protecting the hair comb after being taken out.

[0012] Preferably, an injection molding table is arranged on the top of the frame, the sliding assembly is arranged on the top of the injection molding table, and the sliding assembly includes: a support frame, a sliding plate, an electric slide rail, a sliding seat, a connecting plate and a telescopic rod, the support frame is fixedly arranged on the top of the injection molding table, the sliding plate is arranged on the top of the support frame, the electric slide rail is arranged on the top of the sliding plate, and the electric slide rail is arranged along the length direction of the sliding plate, the sliding seat is slidably arranged on the top of the electric slide rail, and the slide seat and the electric slide rail are slidably matched, and the connecting plate is arranged on the top of the slide seat.

[0013] Preferably, a sliding groove is provided on the connecting plate, and the sliding groove is provided along the length direction of the connecting plate, a sliding plate and a sliding block are provided inside the sliding groove, and the sliding block is fixedly provided at the bottom of the sliding plate, and the sliding plate and the sliding block can slide along the length direction of the sliding groove.

[0014] Preferably, two guide bars are provided on the top of the connecting plate, and the two guide bars are respectively located on both sides of the sliding groove, sliding grooves are opened on the opposite side walls of the two guide bars, and the two ends of the sliding plate are respectively located in the sliding grooves, and a telescopic rod is provided on the inner wall of one side of the sliding groove, and the top extending end of the telescopic rod is connected to the sliding block so that the telescopic rod drives the sliding block to slide.

[0015] Preferably, the lifting rod vertically penetrates the sliding plate and the sliding block, a sliding bar is provided on one side outer wall of the lifting rod, a driving assembly is provided on the top of the sliding plate, the lifting rod is driven up and down by the driving assembly, the driving assembly includes: a third motor and a first gear, teeth are provided on one side outer wall of the lifting rod in the vertical direction, the third motor is provided on the top of the sliding plate, a rotating shaft is provided at the output end of the third motor, and the first gear is provided at the end of the rotating shaft, and the first gear is meshed with the teeth.

[0016] Preferably, the disc bracket assembly includes: a fixed disc, an upper connecting disc, a lower connecting disc and a fixed connecting rod, the fixed disc is arranged at the bottom end of the lifting rod, the fixed disc is circular, the upper connecting disc is rotatably arranged at the bottom of the fixed disc, the fixed connecting rod is arranged at the bottom center position of the upper connecting disc, the bottom end of the fixed connecting rod is provided with a lower connecting disc, the clamping assembly and the spraying assembly are arranged at the top of the lower connecting disc, and the clamping assembly and the spraying assembly are symmetrically arranged around the axis of the fixed connecting rod.

[0017] Preferably, the clamping assembly includes: a first protective box, a first extending rod, a first movable rod and a clamping strip, the first protective box is arranged on the top of the lower connecting plate, and the first protective box has an opening, the first extending rod is arranged on the side wall opposite to the opening, and the first movable rod is arranged at the extending end of the first extending rod, the first extending rod can drive the first movable rod closer to or away from the opening, a groove is provided on the outer wall on one side of the first movable rod, a first bidirectional lead screw is rotatably provided on the side wall opposite to the groove, and a motor is provided in the first movable rod, the output end of the motor is transmission-connected to the bidirectional lead screw, the clamping strips are symmetrically provided on the outer peripheral surface of the bidirectional lead screw, and the two clamping strips can move in opposite directions.

[0018] Preferably, the spray assembly includes: a second protective box, a second extending rod, a bidirectional screw rod, a spray rod and a spray head. The second protective box is arranged on the top of the lower connecting plate, and the second protective box is symmetrically arranged with the first protective box. The second protective box is also provided with an opening, and the opening faces the outer peripheral surface of the lower connecting plate. The second extending rod is arranged on the inner side wall of the second protective box, and a second movable rod is arranged at the extending end of the second extending rod. A groove is arranged on one side wall of the second movable rod, and the bidirectional screw rod is arranged in the groove. The spray rods are symmetrically arranged on the outer peripheral surface of the bidirectional screw rod, and the two spray rods can move in opposite directions. At the same time, a release agent spray tank is arranged inside the second protective box, and the release agent spray tank is connected to the spray rod, and nozzles are arranged at the ends of the two spray rods.

[0019] Preferably, a rotating ring is rotatably provided on the top of the lower connecting disk, and a protective cover is provided on the top of the rotating ring, a local conical tooth is provided on the top of the rotating ring, a second motor is provided on the top of the lower connecting disk, a bevel gear is provided on the output end of the second motor, and the bevel gear is meshed with the local conical tooth.

[0020] An injection molding process for a hair comb comprises the following steps:

[0021] S1. After injection molding, the static mold and the dynamic mold are opened, and at the same time, the sliding assembly and the lifting rod drive the disc support assembly to move between the two molds, and make the spraying assembly and the clamping assembly correspond to one mold respectively;

[0022] S2, the clamping component clamps the injection molded hair comb, and the spraying component sprays the release agent on the static mold;

[0023] S3, then the disc support assembly rotates 180 degrees, so that the spraying assembly sprays the release agent on the movable mold, avoiding the need to take the material and spray the release agent in sequence;

[0024] S4. In order to prevent the atomized release agent from contaminating the newly formed hair comb, the protective cover can block or open the opening of the first protective box.

[0025] The beneficial effects of the present invention are:

[0026] After the injection molding machine has injection-molded the hair comb, the two molds are opened and the sliding assembly drives the lifting rod to move to the top between the two molds. Then the lifting rod moves downward, and the movement of the lifting rod drives the disc bracket assembly to move downward, so that the disc bracket assembly moves between the two molds, and the spraying assembly and the clamping assembly correspond to one mold respectively. The spraying assembly sprays the mold with a release agent, and the clamping assembly clamps and takes the material from the injection-molded hair comb, and the protective cover protects the hair comb after taking it out. Then the disc bracket assembly rotates 180 degrees, so that the positions of the spraying assembly and the clamping assembly are swapped, and the spraying assembly sprays the release agent on the corresponding mold after the swap. After the spraying is completed, the disc bracket assembly moves upward and the two molds are closed, so that taking the material and spraying the release agent can be carried out at the same time, thereby improving the work efficiency of the entire process, saving the time cost of production, and at the same time reducing the opening and closing time of the two molds, reducing the heat loss on the mold, and ensuring the production quality of the hair comb. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0028] Figure 2 It is a schematic diagram of the movable mold structure of the present invention.

[0029] Figure 3 It is a schematic diagram of the support frame structure of the present invention.

[0030] Figure 4 It is a schematic diagram of the connecting plate structure of the present invention.

[0031] Figure 5 It is a schematic diagram of the fixed disk structure of the present invention.

[0032] Figure 6 It is a schematic diagram of the protective cover structure of the present invention.

[0033] Figure 7 It is a schematic diagram of the structure of the second protection box of the present invention.

[0034] Figure 8 It is a schematic diagram of the clamping strip structure of the present invention.

[0035] Reference numerals:

[0036] 10. Frame; 11. Unloading barrel; 12. Static mold; 13. Moving mold; 14. Injection molding table; 20. Support frame; 21. Sliding plate; 22. Electric slide rail; 23. Sliding seat; 30. Connecting plate; 31. Sliding plate; 32. Sliding block; 33. Guide strip; 34. Sliding groove; 35. Sliding groove; 36. Telescopic rod; 40. Third motor; 41. First gear; 42. Tooth; 43. Lifting rod; 44. Sliding strip; 50. Fixed plate; 51. Upper connecting plate; 52. Lower connecting plate; 53. Rotating Ring; 54, protective cover; 55, second motor; 56, bevel gear; 57, partial bevel teeth; 58, fixed connecting rod; 60, first motor; 61, rotating rod; 62, second gear; 63, connecting ring; 64, annular teeth; 70, first protective box; 71, first extension rod; 72, first moving rod; 73, bidirectional screw; 74, clamping strip; 80, second protective box; 81, second extension rod; 82, second moving rod; 83, bidirectional screw; 84, spray rod; 85, nozzle. DETAILED DESCRIPTION

[0037] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0038] like Figures 1 to 8 As shown, an injection molding device for a hair comb of the present invention comprises: a frame 10, a support frame 20 and a sliding assembly, wherein the support frame 20 is arranged on the top of the frame 10, the sliding assembly is arranged on the top of the support frame 20, and the sliding assembly is arranged in a T-shape so that the sliding assembly can move along the length or width direction of the frame 10, and further comprises: a lifting rod 43, a fixed disk 50, a disc support assembly, a clamping assembly, a spraying assembly, and a protective cover 54, wherein the lifting rod 43 is lifted and arranged on the sliding assembly, the fixed disk 50 is arranged at the bottom of the lifting rod 43, and the disc support assembly is rotatably arranged at the bottom of the fixed disk 50, the spraying assembly and the clamping assembly are symmetrically arranged on the disc support assembly, the spraying assembly is used to spray a demoulding agent on the mold, the clamping assembly is used to take the hair comb after injection molding, and the protective cover 54 is rotatably arranged on the disc support assembly, and the protective cover 54 is used to protect the hair comb after taking out.

[0039] After the injection molding machine has injection-molded the hair comb, the two molds are opened and the sliding assembly drives the lifting rod 43 to move to the top between the two molds. Then the lifting rod 43 moves downward, and the movement of the lifting rod 43 drives the disc support assembly to move downward, so that the disc support assembly moves between the two molds, and the spraying assembly and the clamping assembly correspond to one mold respectively. The spraying assembly sprays the mold release agent on the mold, and the clamping assembly clamps and takes the material from the injection-molded hair comb. After the material is taken, the protective cover 54 protects the hair comb. Then the disc support assembly rotates 180 degrees, so that the positions of the spraying assembly and the clamping assembly are exchanged, and the spraying assembly sprays the mold release agent on the corresponding mold after the exchange. After the spraying is completed, the disc support assembly moves upward and the two molds are closed to continue injection molding, so that taking the material and spraying the mold release agent can be carried out at the same time, thereby improving the working efficiency of the entire process, saving the time cost of production, and at the same time reducing the opening and closing time of the two molds, reducing the heat loss on the mold, and ensuring the production quality of the hair comb.

[0040] To further illustrate how to carry out material removal and spraying of release agent simultaneously, thereby improving the working efficiency of the entire process, saving production time costs, and reducing heat loss on the two molds, a detailed description will be given below.

[0041] like Figures 2 to 5 As shown, an injection molding table 14 is arranged on the top of the frame 10, and the sliding assembly is arranged on the top of the injection molding table 14, and the sliding assembly includes: a support frame 20, a sliding plate 21, an electric slide rail 22, a slide seat 23, a connecting plate 30 and a telescopic rod 36, the support frame 20 is fixedly arranged on the top of the injection molding table 14, the sliding plate 21 is arranged on the top of the support frame 20, the electric slide rail 22 is arranged on the top of the sliding plate 21, and the electric slide rail 22 is arranged along the length direction of the sliding plate 21, the slide seat 23 is slidably arranged on the top of the electric slide rail 22, and the slide seat 23 is slidably matched with the electric slide rail 22, and the connecting plate 30 is arranged on the top of the slide seat 23.

[0042] A sliding groove 35 is provided on the connecting plate 30, and the sliding groove 35 is provided along the length direction of the connecting plate 30. A sliding plate 31 and a sliding block 32 are provided inside the sliding groove 35, and the sliding block 32 is fixedly provided at the bottom of the sliding plate 31, and the sliding plate 31 and the sliding block 32 can slide along the length direction of the sliding groove 35. Two guide bars 33 are provided on the top of the connecting plate 30, and the two guide bars 33 are respectively located on both sides of the sliding groove 35. Slide grooves 34 are provided on the opposite side walls of the two guide bars 33, and the two ends of the sliding plate 31 are respectively located in the slide grooves 34. A telescopic rod 36 is provided on the inner wall of one side of the sliding groove 35, and the top extending end of the telescopic rod 36 is connected to the sliding block 32, so that the telescopic rod 36 can drive the sliding block 32 to slide.

[0043] When it is necessary to pick up the injection-molded hair comb, the slide 23 moves along the length direction of the electric slide rail 22, and the movement of the slide 23 drives the connecting plate 30 to move, so that the connecting plate 30 can move along the length direction of the electric slide rail 22, and the movement of the connecting plate 30 can drive the sliding plate 31 and the sliding block 32 to move, and at the same time, the telescopic rod 36 extends the sliding block 32 to move, and the movement of the sliding block 32 drives the sliding plate 31 to move, so that the sliding plate 31 and the sliding block 32 can move along the length direction of the connecting plate 30, thereby realizing accurate picking of the injection-molded hair comb, and even if different models of modules are replaced later, timely adjustments can be made, thereby improving the applicable scenarios of the device.

[0044] like Figures 3 to 5 As shown, the lifting rod 43 vertically penetrates the sliding plate 31 and the sliding block 32, and a sliding bar 44 is provided on the outer wall of one side of the lifting rod 43. The sliding bar 44 can make the lifting rod 43 more stable when moving up and down. A driving assembly is provided on the top of the sliding plate 31, and the lifting rod 43 is driven up and down by the driving assembly. The driving assembly includes: a third motor 40 and a first gear 41. A tooth 42 is provided on the outer wall of one side of the lifting rod 43 in the vertical direction. The third motor 40 is provided on the top of the sliding plate 31, and a rotating shaft is provided at the output end of the third motor 40, and the first gear 41 is provided at the end of the rotating shaft, and the first gear 41 is meshed with the tooth 42.

[0045] When the lifting rod 43 needs to be lifted or lowered, the third motor 40 drives the rotating shaft to rotate, and the rotation of the rotating shaft drives the first gear 41 to rotate. Since the first gear 41 is meshed with the tooth 42, the rotation of the first gear 41 drives the lifting rod 43 to move up and down. The up and down movement of the lifting rod 43 can drive the disc bracket assembly to move up and down, so that the disc bracket assembly moves between the two molds to take the material, thereby realizing material taking and unloading.

[0046] like Figures 5 to 8 As shown, the disc bracket assembly includes: a fixed disc 50, an upper connecting disc 51, a lower connecting disc 52 and a fixed connecting rod 58. The fixed disc 50 is arranged at the bottom end of the lifting rod 43, and the fixed disc 50 is circular. The upper connecting disc 51 is rotatably arranged at the bottom of the fixed disc 50, and the fixed connecting rod 58 is arranged at the bottom center position of the upper connecting disc 51. The bottom end of the fixed connecting rod 58 is provided with the lower connecting disc 52, and the clamping assembly and the spraying assembly are arranged on the top of the lower connecting disc 52, and the clamping assembly and the spraying assembly are symmetrically arranged with respect to the axis of the fixed connecting rod 58, so as to realize the simultaneous removal of materials and spraying of release agent on the injection molded hair comb, thereby improving production efficiency.

[0047] like Figures 6 to 8As shown, the clamping assembly includes: a first protective box 70, a first extending rod 71, a first moving rod 72 and a clamping strip 74. The first protective box 70 is arranged on the top of the lower connecting plate 52, and the first protective box 70 has an opening, and the opening faces the outer peripheral surface of the lower connecting plate 52. The first extending rod 71 is arranged on the side wall opposite to the opening, and the first moving rod 72 is arranged at the extending end of the first extending rod 71. The first extending rod 71 can drive the first moving rod 72 to approach or move away from the opening. A groove is provided on the outer wall on one side of the first moving rod 72, and the groove is provided along the length direction of the first moving rod 72. A first bidirectional lead screw 73 is rotatably provided on the side wall opposite to the groove, and a motor is provided in the first moving rod 72. The output end of the motor is transmission-connected to the bidirectional lead screw 73. The clamping strips 74 are symmetrically provided on the outer peripheral surface of the bidirectional lead screw 73, and the two clamping strips 74 can move in opposite directions.

[0048] The spray assembly includes: a second protective box 80, a second extending rod 81, a bidirectional screw 83, a spray rod 84 and a nozzle 85. The second protective box 80 is arranged on the top of the lower connecting plate 52, and the second protective box 80 is symmetrically arranged with the first protective box 70. The second protective box 80 is also provided with an opening, and the opening faces the outer peripheral surface of the lower connecting plate 52. The second extending rod 81 is arranged on the inner side wall of the second protective box 80, and the extending end of the second extending rod 81 is provided with a second moving rod 82. A groove is provided on one side wall of the second moving rod 82, and the bidirectional screw 83 is arranged in the groove. A motor is arranged inside the second moving rod 82. Similarly, the motor drives the bidirectional screw 83 to rotate. The spray rods 84 are symmetrically arranged on the outer peripheral surface of the bidirectional screw 83, and the two spray rods 84 can move in reverse. At the same time, a release agent spray tank is arranged inside the second protective box 80, and the release agent spray tank is connected to the spray rod 84. The ends of the two spray rods 84 are provided with nozzles 85.

[0049] When the two molds are opened, the sliding assembly and the lifting rod 43 drive the disc support assembly to move between the two molds, and the first extension rod 71 extends the first moving rod 72 to move so that the clamping bar 74 is close to the mold. At the same time, the motor drives the two-way screw 73 to rotate, and the rotation of the two-way screw 73 drives the two clamping bars 74 to move relative to each other, so that the injection-molded hair comb is clamped. After the clamping is completed, the first extension rod 71 contracts, so that the hair comb moves toward the inside of the first protective box 70. At the same time, the motor drives the two-way screw 83 to rotate, and the rotation of the two-way screw 83 drives the two spraying rods 84 and the nozzle 85 to move relative to each other. At the same time, the demoulding agent enters the inside of the nozzle 85 through the spraying rod 84, and the demoulding agent is atomized and sprayed onto the mold through the nozzle 85. After the spraying is completed, the disc support assembly rotates 180 degrees to allow the spraying assembly to spray the other mold.

[0050] A connecting ring 63 is provided on the top of the upper connecting disk 51, and an annular tooth 64 is provided on the inner ring surface of the connecting ring 63. A first motor 60 is provided on the top of the fixed disk 50, and a rotating rod 61 is provided on the output end of the first motor 60. A second gear 62 is provided on the bottom end of the rotating rod 61, and the second gear 62 is meshed with the annular tooth 64. When the disc support assembly needs to be rotated 180 degrees, the first motor 60 drives the rotating rod 61 to rotate, and the rotation of the rotating rod 61 drives the second gear 62 to rotate. Since the second gear 62 is meshed with the annular tooth 64, the second gear 62 rotates the connecting ring 63 to rotate, and the rotation of the connecting ring 63 drives the entire disc support assembly to rotate, so that the disc support assembly rotates to 180 degrees, so that the spraying assembly sprays the release agent on another mold. After the spraying is completed, the lifting rod 43 drives the disc support assembly to move upward, thereby avoiding the sequential material taking and spraying of the release agent, optimizing the production steps, and improving the production efficiency.

[0051] In order to prevent the atomized release agent from contaminating the newly formed hair comb after rotating one hundred and eighty degrees, a rotating ring 53 is rotatably arranged on the top of the lower connecting disk 52, and a protective cover 54 is arranged on the top of the rotating ring 53. A partial conical tooth 57 is arranged on the top of the rotating ring 53. A second motor 55 is arranged on the top of the lower connecting disk 52, and a conical gear 56 is arranged at the output end of the second motor 55, and the conical gear 56 is meshed with the partial conical tooth 57.

[0052] Therefore, after the injection-molded hair comb is taken out and placed inside the first protective box 70, the second motor 55 can drive the bevel gear 56 to rotate. Since the bevel gear 56 is meshed with the partial bevel teeth 57, the rotation of the bevel gear 56 drives the rotating ring 53 to rotate, and the rotation of the rotating ring 53 drives the protective cover 54 to rotate. The circumferential rotation of the protective cover 54 along the lower connecting plate 52 can block or open the opening of the first protective box 70, thereby avoiding contamination of the hair comb and ensuring the production quality of the hair comb.

[0053] like Figures 1 to 3 As shown, a static mold 12 and a dynamic mold 13 are arranged inside the injection molding table 14. The dynamic mold 13 can be close to or away from the static mold 12. A discharge barrel 11 is arranged on the top of the frame 10. Plastic particles are also filled in the discharge barrel 11 for discharge during injection molding.

[0054] An injection molding process for a hair comb of the present invention comprises:

[0055] S1, after injection molding, the static mold 12 and the movable mold 13 are opened, and at the same time, the sliding assembly and the lifting rod 43 drive the disc support assembly to move between the two molds, and make the spraying assembly and the clamping assembly correspond to one mold respectively;

[0056] S2, the clamping assembly clamps the injection-molded hair comb, and the spraying assembly sprays a release agent on the static mold 12;

[0057] S3, then the disc support assembly rotates 180 degrees, so that the spraying assembly sprays the release agent on the movable mold 13, thereby avoiding the need to take materials and spray the release agent in sequence, optimizing the production steps and improving the production efficiency;

[0058] S4. In order to prevent the atomized release agent from contaminating the newly formed hair comb, the protective cover 54 can block or open the opening of the first protective box 70, thereby avoiding contamination of the hair comb and ensuring the production quality of the hair comb.

[0059] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0060] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0061] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. An injection molding device for a hair comb, characterized in that: include: A frame (10), wherein two opening and closing molds are arranged on the frame (10); A support frame (20) is arranged on the frame (10), a sliding assembly is arranged on the top of the support frame (20), and the sliding assembly is arranged in a T-shape so that the sliding assembly can move along the length and width directions of the frame (10); A lifting rod (43) is arranged on the sliding assembly, a fixed disk (50) is arranged at the bottom of the lifting rod (43), a disc support assembly is rotatably arranged at the bottom of the fixed disk (50), and the sliding assembly and the lifting rod (43) are used to drive the disc support assembly to move between the two molds; The disc support assembly is symmetrically provided with a spray assembly and a clamping assembly, the spray assembly is used to spray a mold release agent on the mold, and the clamping assembly is used to take the hair comb after injection molding, and the disc support assembly can rotate 180 degrees so that the spray assembly can evenly spray the mold release agent on the two molds; A protective cover (54) is rotatably disposed on the disc support assembly, and the protective cover (54) is used to protect the hair comb after it is taken out.

2. An injection molding device for a hair comb according to claim 1, characterized in that: An injection molding table (14) is arranged on the top of the frame (10); a sliding assembly is arranged on the top of the injection molding table (14); and the sliding assembly comprises: a support frame (20), a sliding plate (21), an electric slide rail (22), a slide seat (23), a connecting plate (30) and a telescopic rod (36); the support frame (20) is fixedly arranged on the top of the injection molding table (14); the sliding plate (21) is arranged on the top of the support frame (20); the electric slide rail (22) is arranged on the top of the sliding plate (21); and the electric slide rail (22) is arranged along the length direction of the sliding plate (21); the slide seat (23) is slidably arranged on the top of the electric slide rail (22); and the slide seat (23) and the electric slide rail (22) are slidably matched; and the connecting plate (30) is arranged on the top of the slide seat (23).

3. An injection molding device for a hair comb according to claim 2, characterized in that: The connecting plate (30) is provided with a sliding groove (35), and the sliding groove (35) is provided along the length direction of the connecting plate (30), a sliding plate (31) and a sliding block (32) are provided inside the sliding groove (35), and the sliding block (32) is fixedly arranged at the bottom of the sliding plate (31), and the sliding plate (31) and the sliding block (32) can slide along the length direction of the sliding groove (35).

4. The injection molding device for a hair comb according to claim 3, characterized in that: Two guide bars (33) are provided on the top of the connecting plate (30), and the two guide bars (33) are respectively located on both sides of the sliding groove (35). The two guide bars (33) are provided with sliding grooves (34) on the opposite side walls, and the two ends of the sliding plate (31) are respectively located in the sliding grooves (34). A telescopic rod (36) is provided on the inner wall of one side of the sliding groove (35), and the top end of the telescopic rod (36) is connected to the sliding block (32), so that the telescopic rod (36) drives the sliding block (32) to slide.

5. The injection molding device for a hair comb according to claim 4, characterized in that: The lifting rod (43) vertically penetrates the sliding plate (31) and the sliding block (32); a sliding bar (44) is arranged on an outer wall of one side of the lifting rod (43); a driving assembly is arranged on the top of the sliding plate (31); the lifting rod (43) is driven to move up and down by the driving assembly; the driving assembly comprises: a third motor (40) and a first gear (41); teeth (42) are arranged on an outer wall of one side of the lifting rod (43) in a vertical direction; the third motor (40) is arranged on the top of the sliding plate (31); a rotating shaft is arranged on the output end of the third motor (40); the first gear (41) is arranged at the end of the rotating shaft; and the first gear (41) is meshed with the teeth (42).

6. The injection molding device for a hair comb according to claim 5, characterized in that: The disc support assembly comprises: a fixed disc (50), an upper connecting disc (51), a lower connecting disc (52) and a fixed connecting rod (58); the fixed disc (50) is arranged at the bottom end of the lifting rod (43); the fixed disc (50) is circular; the upper connecting disc (51) is rotatably arranged at the bottom of the fixed disc (50); the fixed connecting rod (58) is arranged at the bottom center position of the upper connecting disc (51); the lower connecting disc (52) is arranged at the bottom end of the fixed connecting rod (58); the clamping assembly and the spraying assembly are arranged at the top of the lower connecting disc (52); and the clamping assembly and the spraying assembly are symmetrically arranged around the axis of the fixed connecting rod (58).

7. An injection molding device for a hair comb according to claim 6, characterized in that: The clamping assembly comprises: a first protective box (70), a first extension rod (71), a first moving rod (72) and a clamping strip (74); the first protective box (70) is arranged on the top of the lower connecting plate (52), and the first protective box (70) has an opening; the first extension rod (71) is arranged on the side wall opposite to the opening, and the first moving rod (72) is arranged at the extension end of the first extension rod (71); the first extension rod (71) can drive the first moving rod (72) to approach or move away from the opening; a groove is provided on the outer wall of one side of the first moving rod (72); a first bidirectional lead screw (73) is rotatably provided on the side wall opposite to the groove; a motor is provided in the first moving rod (72), and the output end of the motor is transmission-connected to the bidirectional lead screw (73); the clamping strips (74) are symmetrically arranged on the outer peripheral surface of the bidirectional lead screw (73), and the two clamping strips (74) can move in opposite directions.

8. The injection molding device for a hair comb according to claim 7, characterized in that: The spray assembly comprises: a second protective box (80), a second extension rod (81), a bidirectional screw rod (83), a spray rod (84) and a spray head (85); the second protective box (80) is arranged on the top of the lower connecting plate (52), and the second protective box (80) is symmetrically arranged with the first protective box (70); the second protective box (80) is also provided with an opening, and the opening faces the outer peripheral surface of the lower connecting plate (52); the second extension rod (81) is arranged on the inner side wall of the second protective box (80 ... symmetrically arranged with the first protective box (70); the second protective box (80) is symmetrically arranged with the first protective box (70); the second protective box (80) is symmetrically arranged with the first protective box (70); the second protective box (80) is symmetrically arranged with the first protective box (70); the second protective box (80) is symmetrically arranged with the first protective A second moving rod (82) is provided at the extending end of the second extending rod (81), a groove is provided on one side wall of the second moving rod (82), and a bidirectional screw rod (83) is provided in the groove, a spraying rod (84) is symmetrically provided on the outer peripheral surface of the bidirectional screw rod (83), and the two spraying rods (84) can move in opposite directions, and a release agent spray tank is provided inside the second protective box (80), the release agent spray tank is connected to the spraying rod (84), and nozzles (85) are provided at the ends of the two spraying rods (84).

9. An injection molding device for a hair comb according to claim 8, characterized in that: A rotating ring (53) is rotatably provided on the top of the lower connecting disk (52), and a protective cover (54) is provided on the top of the rotating ring (53). A local conical tooth (57) is provided on the top of the rotating ring (53). A second motor (55) is provided on the top of the lower connecting disk (52), and a conical gear (56) is provided at the output end of the second motor (55), and the conical gear (56) is meshed with the local conical tooth (57).

10. An injection molding process for a hair comb, characterized in that: The injection molding device for a hair comb according to any one of claims 1 to 9 comprises the following steps: S1, after injection molding, the static mold (12) and the movable mold (13) are opened, and at the same time, the sliding assembly and the lifting rod (43) drive the disc support assembly to move between the two molds, and make the spraying assembly and the clamping assembly correspond to one mold respectively; S2, the clamping component clamps the injection-molded hair comb, and the spraying component sprays a mold release agent on the static mold (12); S3, the disc support assembly is then rotated 180 degrees, so that the spraying assembly sprays the release agent on the movable mold (13), thereby avoiding the need to take out the material and spray the release agent in sequence; S4. In order to prevent the atomized demoulding agent from contaminating the newly formed hair comb, the protective cover (54) can block or open the opening of the first protective box (70).

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