Injection molding device based on toothbrush production

Abstract

The application discloses a toothbrush handle injection molding device based on toothbrush production and relates to the technical field of toothbrush handle injection molding. The application discloses a toothbrush handle injection molding device based on toothbrush production and relates to the technical field of toothbrush handle injection molding. The application discloses a toothbrush handle injection molding device based on toothbrush production and relates to the technical field of toothbrush handle injection molding. The application discloses a toothbrush handle injection molding device based on toothbrush production and relates to the technical field of toothbrush handle injection molding. The application discloses a toothbrush handle injection molding device based on toothbrush production and relates to the technical field of toothbrush handle injection molding. The application discloses a toothbrush handle injection molding device based on toothbrush production and relates to the technical field of toothbrush handle injection molding. The application discloses a toothbrush handle injection molding device based on toothbrush production and relates to the technical field of toothbrush handle injection molding. The application discloses a toothbrush handle injection molding device based on toothbrush production and relates to the technical field of toothbrush handle injection molding. The application discloses a toothbrush handle injection molding device based on toothbrush production and relates to the technical field of toothbrush handle injection molding. The application discloses a toothbrush handle injection molding device based on toothbrush production and relates to the technical field of toothbrush handle injection molding. The application discloses a toothbrush handle injection molding device based on toothbrush production and relates to the technical field of toothbrush handle injection molding. The application discloses a toothbrush handle injection molding device based on toothbrush production and relates to the technical field of toothbrush handle injection molding. The application discloses a toothbrush handle injection molding device based on toothbrush production and relates to the technical field of toothbrush handle injection molding. The application discloses a toothbrush handle injection molding device based on toothbrush production and relates to the technical field of toothbrush handle injection molding. The application discloses a toothbrush handle injection molding device based on toothbrush production and relates to the technical field of toothbrush handle injection molding

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of toothbrush handle injection molding, in particular to an injection molding device based on toothbrush production. BACKGROUND

[0002] Toothbrush handles are generally mass-produced by injection molding machines during production. Currently, in order to increase the aesthetic appearance of toothbrush handles, multi-color injection molding is required. However, the existing toothbrush handle production injection molding device is relatively complex when performing multi-color injection molding. Generally, the entire rotating molding device is used for switching, but the toothbrush handle that has completed the first injection molding needs to be repositioned for the second injection molding to complete the double-color injection molding. The process is relatively cumbersome, and the equipment is relatively complex when performing double-color or more injection molding, which is not easy to operate.

[0003] To solve the above problems, the present application provides an injection molding device based on toothbrush production. SUMMARY

[0004] To achieve the above-mentioned purpose, the present application provides the following technical scheme: an injection molding device based on toothbrush production, comprising an injection molding machine and a molding assembly, wherein the injection molding machine is pre-installed on the ground, the molding assembly is installed inside the injection molding machine, the molding assembly comprises a driving device, a movable mold plate, a fixed mold plate and a switching assembly, wherein the driving device is fixed in the injection molding machine, the movable mold plate is connected to the driving device through a driving column, one end of the driving column away from the driving device is rotatably arranged in the fixed mold plate, the fixed mold plate is fixed in the injection molding machine, and the end away from the movable mold plate is connected to the extrusion equipment in the injection molding machine, and the movable mold plate and the fixed mold plate are both provided with a switching assembly for multi-color injection molding of toothbrush handles.

[0005] Further, preferably, the movable mold plate and the fixed mold plate are both provided with a sliding cavity and a switching space, the upper and lower ends of the sliding cavity and the switching space are both provided with a switching sliding groove, and the switching space is a cylindrical space.

[0006] Further, preferably, the movable mold plate is further provided with an ejection hole at the center of one side close to the sliding cavity, the output end of the ejection mechanism in the injection molding machine is inserted into the ejection hole, the fixed mold plate is further provided with an injection hole at one side close to the sliding cavity, the injection hole is connected to the extrusion equipment, an overpressure hole is obliquely provided above the injection hole, and the fixed mold plate is further provided with a connecting hole at both sides.

[0007] Further, preferably, the switching assembly comprises a core switching assembly and a cavity switching assembly, wherein the core switching assembly is slidably arranged in the movable mold plate, and the cavity switching assembly is slidably arranged in the fixed mold plate.

[0008] Further, preferably, the core conversion assembly and the cavity conversion assembly are partially identical in structure, and both comprise a conversion block, a sliding block, a motor frame and a conversion spring, wherein the sliding block is slidingly arranged in the conversion sliding groove, a rotating shaft is arranged inside the sliding block, one end of the rotating shaft close to each other is fixed with the conversion block, the conversion block can slide in the sliding chamber and rotate in the conversion space, the motor frame is arranged on the top of the sliding block to fix the conversion motor, the output end of the conversion motor is connected with the rotating shaft, and the conversion spring is arranged between one side of the sliding block and the sliding chamber to push the conversion block into the conversion space.

[0009] The conversion block is slidingly arranged in the sliding chamber, and rotating shafts are symmetrically fixed to the upper and lower end faces of the conversion block.

[0010] Further, preferably, the core conversion assembly further comprises a core and an auxiliary ejection assembly, wherein the cores are uniformly arranged on the side walls of the conversion blocks in the core conversion assembly, and the conversion blocks are fixed with the cores on at least two side walls for multi-color injection molding of the toothbrush handle, and the auxiliary ejection assembly is slidingly arranged in the conversion blocks in the core conversion assembly.

[0011] Further, preferably, the cavity conversion assembly further comprises a cavity and a heating hole, wherein the cavity is arranged in the side wall of the conversion block in the cavity conversion assembly and corresponds to the core, and two heating holes are arranged inside the conversion block in the cavity conversion assembly, the two heating holes are arranged in a cross shape and are connected with the injection hole and the connecting hole.

[0012] Further, preferably, the auxiliary ejection assembly comprises a first sliding column and a second sliding column, wherein the first sliding column and the second sliding column are arranged in a cross shape, both ends of the first sliding column and the second sliding column are fixed with limiting columns, a limiting column is fixed on the second sliding column at the position crossed by the first sliding column, an avoiding slot is arranged inside the avoiding column, and the first sliding column can slide relative to the avoiding slot.

[0013] Compared with the prior art, the injection molding device based on toothbrush production has the following beneficial effects:

[0014] In the application, when the toothbrush handle is subjected to multi-color injection molding, the injection molding of the overall shape of the toothbrush handle is first completed, then the toothbrush handle is separated from the movable mold plate and kept stationary through the ejection mechanism and the collection mechanism, then the movable mold plate is driven away from the fixed mold plate through the driving device, at this time the conversion spring pushes the sliding block and makes the conversion block enter the conversion space, then the movable mold plate and the conversion block in the fixed mold plate are synchronously rotated through the conversion motor, so that the conversion block is converted to the next set of cavity and core, at this time the position of the toothbrush handle is kept stationary, and the position of the cavity and the core is the same as the last set, so it is not necessary to position the toothbrush handle again, thereby improving the injection molding efficiency, and the conversion block can be subjected to multi-color injection molding, thereby improving the convenience, and the injection molding material can be assisted by heating through the heating hole during injection molding, thereby avoiding the cooling of the injection molding material due to the long injection molding channel. BRIEF DESCRIPTION OF DRAWINGS

[0015] Fig. 1 It is a forming assembly schematic view of an injection molding device based on toothbrush production;

[0016] Fig. 2 It is an internal schematic view of a movable mold plate of an injection molding device based on toothbrush production;

[0017] Fig. 3 It is a conversion assembly schematic view of an injection molding device based on toothbrush production;

[0018] Fig. 4 It is an auxiliary ejection assembly schematic view of an injection molding device based on toothbrush production;

[0019] In the figure: 1, driving device; 2, driving column; 3, movable mold plate; 4, fixed mold plate; 5, core conversion assembly; 6, cavity conversion assembly; 7, connecting hole; 8, toothbrush handle; 31, sliding bin; 32, ejection hole; 33, conversion space; 34, conversion sliding groove; 41, injection hole; 42, pressure maintaining hole; 51, conversion block; 52, sliding block; 53, motor frame; 54, conversion spring; 55, core; 56, auxiliary ejection assembly; 61, cavity; 62, heating hole; 561, first sliding column; 562, second sliding column; 563, limiting column; 564, avoiding column; 565, avoiding groove. DETAILED DESCRIPTION

[0020] REFERENCE Figs. 1-4The application provides a technical scheme: a injection molding device based on toothbrush production, which comprises an injection molding machine and a forming assembly, wherein the injection molding machine is preset on the ground, the forming assembly is installed in the injection molding machine, the forming assembly comprises a driving device 1, a movable mold plate 3, a fixed mold plate 4 and a conversion assembly, wherein the driving device 1 is fixed in the injection molding machine, the movable mold plate 3 is connected with the driving device 1 through a driving column 2, one end of the driving column 2 away from the driving device 1 is rotationally arranged in the fixed mold plate 4, the fixed mold plate 4 is fixed in the injection molding machine, and one end away from the movable mold plate 3 is connected with an extrusion device in the injection molding machine, and the movable mold plate 3 and the fixed mold plate 4 are both provided with the conversion assembly, which is used for multi-color injection molding of a toothbrush handle 8.

[0021] It should be noted that the injection molding machine is an existing device, and the inside thereof should include but is not limited to an extrusion device ejection mechanism and a collection mechanism.

[0022] In the embodiment, the movable mold plate 3 and the fixed mold plate 4 are both provided with a sliding cavity 31 and a conversion space 33, the upper and lower end faces of the sliding cavity 31 and the conversion space 33 are both provided with a conversion sliding groove, and the conversion space 33 is a cylindrical space.

[0023] In the embodiment, the movable mold plate 3 is also provided with an ejection hole 32 at a center position of one side close to the sliding cavity 31, which is used for the output end of the ejection mechanism in the injection molding machine to extend into, the fixed mold plate 4 is also provided with an injection hole 41 at one side close to the sliding cavity 31, the injection hole 41 is communicated with the extrusion device, an overpressure hole 42 is obliquely arranged above the injection hole 41, and the fixed mold plate 4 is also symmetrically provided with a connecting hole 7 at two sides.

[0024] That is to say, after the injection molding is completed, the residual injection molding material in the injection molding channel is sent into the space between the movable mold plate 3 and the fixed mold plate 4 through the overpressure hole 42, and overpressure is performed, and in the injection molding process, the connecting hole 7 is connected with an external heating device to continuously heat the injection molding material, so that the injection molding material is prevented from being cooled and formed in advance due to the long injection molding channel.

[0025] As a preferred embodiment, the conversion assembly comprises a core conversion assembly 5 and a cavity conversion assembly 6, wherein the core conversion assembly 5 is slidably arranged in the movable mold plate 3, and the cavity conversion assembly 6 is slidably arranged in the fixed mold plate 4.

[0026] As a preferred embodiment, the core conversion assembly 5 and the cavity conversion assembly 6 are partially identical in structure, and each comprises a conversion block 51, a sliding block 52, a motor frame 53 and a conversion spring 54, wherein the sliding block 52 is slidingly arranged in the conversion sliding groove 34, the sliding block 52 is internally rotatably provided with a rotating shaft, one end of the rotating shaft close to each other is fixed with the conversion block 51, the conversion block 51 can slide in the sliding bin 31 and can also rotate in the conversion space 33, the motor frame 53 is arranged on the top of the sliding block 52 to fix a conversion motor, the output end of the conversion motor is connected with the rotating shaft, and the conversion spring 54 is arranged between one side of the sliding block 52 and the sliding bin 31 to push the conversion block 51 into the conversion space 33.

[0027] It should be noted that when the movable die plate 3 and the fixed die plate 4 are away from each other, the conversion block 51 is always located in the conversion space 33 by the conversion spring 54, when injection molding is performed, the movable die plate 3 and the fixed die plate 4 are close to each other to extrude the conversion block 51, at this time the conversion spring 54 can provide additional pressure retention for injection molding, thereby improving the pressure retention degree.

[0028] The conversion block 51 is slidingly arranged in the sliding bin 31, and the upper and lower end faces of the conversion block 51 are symmetrically fixed with rotating shafts, the rotating shafts are rotatably arranged in the sliding block

[0029] As a preferred embodiment, the core conversion assembly 5 further comprises a core 55 and an auxiliary ejection assembly 56, wherein the cores 55 are uniformly arranged on the side walls of the conversion block 51 in the core conversion assembly 5, and the conversion block 51 has at least two side walls on which the cores 55 are fixed, for multi-color injection molding of the toothbrush handle 8, and the auxiliary ejection assembly 56 is slidingly arranged in the conversion block 51 in the core conversion assembly 5.

[0030] As a preferred embodiment, the cavity conversion assembly 6 further comprises a cavity 61 and a heating hole 62, wherein the cavity 61 is arranged in the side wall of the conversion block 51 in the cavity conversion assembly 6 and corresponds to the core 55, and two heating holes 62 are arranged in the conversion block 51 in the cavity conversion assembly 6, the two heating holes 62 are arranged in a cross shape and are in communication with the injection hole 41 and the connecting hole 7.

[0031] As a preferred embodiment, the auxiliary ejection assembly 56 comprises a first slide column 561 and a second slide column 562, wherein the first slide column 561 and the second slide column 562 are arranged in a cross shape, and both ends of the first slide column 561 and the second slide column 562 are fixed with a limiting column 563, and the second slide column 562 is fixed with an avoiding column 564 at the position intersecting with the first slide column 561, and the avoiding column 564 is internally provided with an avoiding groove 565, and the first slide column 561 can relatively slide with the avoiding groove 565.

[0032] It should be noted that the limiting column 563 and the output end of the ejection mechanism are both magnetic materials, can be mutually adsorbed, and the adsorption force generated is smaller than the elastic force of the conversion spring 54, that is, the limiting column 563 is adsorbed in the conversion block 51 by the ejection mechanism during injection molding, and the limiting column 563 is ejected by the ejection mechanism during demolding, so as to demold, and when the conversion block 51 is located in the conversion space 33, the ejection mechanism is located outside the conversion block 51.

[0033] Specifically, when the toothbrush handle 8 is subjected to multi-color injection molding, the injection molding of the overall shape of the toothbrush handle 8 is first completed, then the toothbrush handle 8 is separated from the movable mold plate 3 and kept stationary by the ejection mechanism and the collecting mechanism, then the movable mold plate 3 moves away from the fixed mold plate 4 by the driving device 1, at this time the conversion spring 54 pushes the sliding block 52 and makes the conversion block 51 enter the conversion space 33, and then the conversion motor is used to make the conversion block 51 in the movable mold plate 3 and the fixed mold plate 4 rotate synchronously, so as to make the conversion block 51 switch to the next group of cavity 61 and core 55, at this time the toothbrush handle 8 keeps stationary, and the positions of the cavity 61 and the core 55 are the same as the previous group, so it is not necessary to re-position the toothbrush handle 8, thereby improving the injection molding efficiency, then the movable mold plate 3 approaches the fixed mold plate 4, and when the movable mold plate 3 contacts the toothbrush handle 8, it is placed on the core 55, at this time the collecting mechanism exits between the fixed mold plate 4 and the movable mold plate 3, and the movable mold plate 3 continues to move towards the fixed mold plate 4 to perform injection molding of the second color, and the conversion block 51 can be used for multi-color injection molding, thereby improving the convenience, and the heating hole 62 can be used for auxiliary heating of the injection molding material during injection molding, so as to avoid that the injection molding material is cooled due to long injection molding channel.

[0034] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited thereto, any person skilled in the art can make equivalent replacement or change according to the technical solution and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. An injection molding apparatus based on toothbrush production, characterized by: The utility model provides an injection molding machine and molding assembly, the injection molding machine is prearranged on the ground, the molding assembly is installed in the inside of injection molding machine, the molding assembly includes drive arrangement (1), movable platen (3), fixed platen (4) and conversion assembly, drive arrangement (1) is fixed in the inside of injection molding machine, movable platen (3) is connected with drive arrangement (1) using drive column (2), the one end away from drive arrangement (1) of drive column (2) is rotatably arranged in the inside of fixed platen (4), and fixed platen (4) is fixed in the inside of injection molding machine, and the one end away from movable platen (3) is connected with the extrusion equipment in the inside of injection molding machine, and movable platen (3) and fixed platen (4) are all arranged with conversion assembly in the inside, are used for the multicolor injection molding of toothbrush handle (8); The inside of movable platen (3) and fixed platen (4) is all set with sliding bin (31) and conversion space (33), the one side center position of movable platen (3) is close to sliding bin (31) still set with ejection hole (32), for the output end of the ejector mechanism in the injection molding machine is inserted; The conversion assembly includes core conversion assembly (5) and cavity conversion assembly (6), the core conversion assembly (5) and cavity conversion assembly (6) part structure are same, all include conversion block (51), sliding block (52), motor frame (53) and conversion spring (54), the conversion block (51) can slide in the sliding bin (31) also can rotate in the conversion space (33); The core conversion assembly (5) further includes core (55) and auxiliary ejection assembly (56), the core (55) is evenly arranged in the side wall of the conversion block (51) in the core conversion assembly (5), and the conversion block (51) has at least two side walls fixed with the core (55), for the multicolor injection molding of toothbrush handle (8), the auxiliary ejection assembly (56) is slidably arranged in the conversion block (51) in the core conversion assembly (5); The cavity conversion assembly (6) further includes cavity (61) and heating hole (62), the cavity (61) is set in the side wall of the conversion block (51) in the cavity conversion assembly (6); The auxiliary ejection assembly (56) includes first slide column (561) and second slide column (562), the first slide column (561) and second slide column (562) are arranged in cross, and the two ends of the first slide column (561) and second slide column (562) are fixed with limit column (563), the second slide column (562) is fixed with avoid column (564) in the position of crossing the first slide column (561), the inside of avoid column (564) is set with avoid slot (565), the first slide column (561) can slide relative to the avoid slot (565).

2. The injection molding device based on toothbrush production according to claim 1, characterized in that: The upper and lower end faces of the sliding bin (31) and the conversion space (33) are both set with conversion sliding groove (34), and the conversion space (33) is a cylindrical space.

3. The injection molding device based on toothbrush production according to claim 1, characterized in that: The fixed mold plate (4) is provided with an injection hole (41) near one side of the sliding bin (31), the injection hole (41) is communicated with the extrusion equipment, and a pressure maintaining hole (42) is obliquely arranged above the injection hole (41), and the fixed mold plate (4) is symmetrically provided with a connecting hole (7) on both sides.

4. The injection molding apparatus based on toothbrush production according to claim 1, characterized in that: The core conversion assembly (5) is slidably arranged in the movable mold plate (3), and the cavity conversion assembly (6) is slidably arranged in the fixed mold plate (4).

5. The injection molding apparatus based on toothbrush production according to claim 2, characterized in that: The sliding block (52) is slidably arranged in the conversion chute (34), a rotating shaft is rotatably arranged in the sliding block (52), one end of the rotating shaft is fixed with a conversion block (51), a conversion motor is fixed on the top of the sliding block (52) by a motor frame (53), the output end of the conversion motor is connected with the rotating shaft, and a conversion spring (54) is arranged between one side of the sliding block (52) and the sliding bin (31) for pushing the conversion block (51) into the conversion space (33). The conversion block (51) is slidably arranged in the sliding bin (31), rotating shafts are symmetrically fixed on the upper and lower end faces of the conversion block (51), and the rotating shafts are rotatably arranged in the sliding block.

6. The injection molding apparatus based on toothbrush production according to claim 3, characterized in that: The cavity (61) corresponds to the core (55), and two heating holes (62) are arranged in the conversion block (51) in the cavity conversion assembly (6), the two heating holes (62) are arranged in a cross shape, and the two heating holes (62) are communicated with the injection hole (41) and the connecting hole (7).

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