Forming mold for producing plastic knob

Abstract

The utility model relates to a forming mould for producing a plastic knob, which comprises a bottom shell, a dismounting mechanism is arranged above the bottom shell, a power mechanism is arranged in the bottom shell, the dismounting mechanism comprises a fixed shell, the bottom of the fixed shell is fixedly connected with the top of the bottom shell, four sliding rods are fixedly arranged at the top of the fixed shell, and the bottom of the fixed shell is fixedly connected with the bottom shell. A movable shell is slidably mounted on the outer surfaces of the four sliding rods, two threaded sleeves are rotatably mounted between the inner top wall and the inner bottom wall of each of the fixed shell and the movable shell, and two synchronous plates are mounted on the outer surfaces of the four threaded sleeves in a threaded mode. According to the forming mold for plastic rotary knob production, the purpose of conveniently replacing the rotary knob mold is achieved through the arrangement of the dismounting mechanism, the operation steps are simple, the replacement efficiency of the rotary knob mold is improved, the effect of providing power for the dismounting mechanism is achieved through the arrangement of the power mechanism, operation of the forming mold is not affected, and the production efficiency is improved. And the use requirements of users are met.

Description

Technical Field

[0001] The utility model relates to the technical field of molding dies, in particular to a molding die for producing plastic knobs. Background Art

[0002] Plastic knobs are widely used in various devices as a simple rotary switch. They can be rotated or pushed in and pulled out to start, manipulate or control something. They are the parts of electrical switches or regulating devices that are usually operated by hand. The processing of plastic knobs for electrical appliances requires the use of molding molds.

[0003] According to the patent with announcement number CN209365183U, a quick-pull mold for processing plastic knobs is proposed. The quick-pull mold for processing plastic knobs has a pull-out upper mold structure arranged on the bottom side of the extrusion plate. When replacing, the fixed knob can be rotated to pull out the original upper mold and replace it with a new mold. When replacing the lower mold, the fixing bolt is taken out, the original lower mold is taken out, and the new mold is inserted. The plate groove and the slide groove are arranged at 90 degrees to facilitate simultaneous replacement. The pull-out mold has high replacement efficiency, simple operation and easy use. The second pneumatic rod is arranged through the bottom of the mold core to achieve overall demolding. The demolding process is stable and the quality of the product can be better guaranteed.

[0004] However, the quick-pull mold used in the processing of the plastic knob needs to be manually disassembled when the upper mold and the lower mold are replaced, and the operation steps are complicated, which reduces the efficiency of mold replacement. Therefore, a molding mold for plastic knob production is proposed to solve the above problem. Utility Model Content

[0005] In view of the shortcomings of the prior art, the utility model provides a molding die for the production of plastic knobs, which has the advantage of convenient replacement of the upper die and the lower die, and solves the problem that the quick-pull mold used in the processing of the plastic knob needs to be manually disassembled separately when replacing the upper die and the lower die, which has complicated operation steps and reduces the efficiency of mold replacement.

[0006] To achieve the above object, the utility model provides the following technical solution: a molding die for producing a plastic knob, comprising a bottom shell, a disassembly mechanism is arranged above the bottom shell, and a power mechanism is arranged inside the bottom shell;

[0007] The disassembly and assembly mechanism includes a fixed shell, the bottom of the fixed shell is fixedly connected to the top of the bottom shell, four sliding rods are fixedly installed on the top of the fixed shell, and a movable shell is slidably installed on the outer surfaces of the four sliding rods. Two threaded sleeves are rotatably installed between the inner top wall and the inner bottom wall of the fixed shell and the movable shell, and two synchronous plates are threadedly installed on the outer surfaces of the four threaded sleeves, and two plug rods are fixedly installed on the opposite sides of the two synchronous plates.

[0008] Furthermore, the power mechanism includes a motor, the bottom of the motor is fixedly connected to the inner bottom wall of the bottom shell, and the output shaft of the motor is fixedly connected to two worm shafts via a coupling.

[0009] Furthermore, two rotating rods with one end penetrating through and extending to the outside of the bottom shell are rotatably mounted on the inner bottom wall of the bottom shell, and the outer surfaces of the two rotating rods are slidably connected to the inner surfaces of the four threaded sleeves.

[0010] Furthermore, slide bars are fixedly installed on the left and right side walls of the inner cavity of the threaded sleeve, and slide grooves are opened on the left and right sides of the outer surface of the rotating rod, and the inner surfaces of the two slide grooves are slidably connected to the outer surfaces of the two slide bars respectively.

[0011] Furthermore, a mounting shell is fixedly mounted on one side opposite to the fixed shell and the movable shell, and a knob mold is slidably mounted inside the two mounting shells.

[0012] Furthermore, worm wheels are fixedly mounted on the outer surfaces of the two rotating rods, and the outer surfaces of the two worm wheels are respectively meshed with the outer surfaces of the two worm shafts.

[0013] Furthermore, a top plate is fixedly mounted on the top of the four sliding rods, and the bottom of the top plate is rotatably connected to the tops of the two rotating rods.

[0014] Furthermore, an electric lifting rod is fixedly installed on the top of the top plate, and the bottom of the telescopic shaft of the electric lifting rod is fixedly connected to the top of the moving shell.

[0015] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0016] The molding die for producing a plastic knob is provided with a disassembly and assembly mechanism, thereby achieving the purpose of facilitating the replacement of the knob die. The operation steps are simple, and the replacement efficiency of the knob die is improved. The power mechanism is provided to provide power for the disassembly and assembly mechanism, which will not affect the operation of the molding die, thereby meeting the use needs of users. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 It is a top view of the movable shell of the structure of the utility model;

[0019] Figure 3 The utility model structure Figure 1 Stereoscopic diagram.

[0020] In the figure: 1. bottom shell; 2. disassembly and assembly mechanism; 201. fixed shell; 202. sliding rod; 203. movable shell; 204. rotating rod; 205. threaded sleeve; 206. sliding bar; 207. synchronous plate; 208. plug-in rod; 209. mounting shell; 210. knob mold; 3. power mechanism; 301. motor; 302. worm shaft; 303. worm wheel; 304. top plate; 305. electric lifting rod. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-3 In this embodiment, a molding mold for producing a plastic knob includes a bottom shell 1, a disassembly mechanism 2 is arranged above the bottom shell 1, a power mechanism 3 is arranged inside the bottom shell 1, the disassembly mechanism 2 includes a fixed shell 201, the bottom of the fixed shell 201 is fixedly connected to the top of the bottom shell 1, four sliding rods 202 are fixedly installed on the top of the fixed shell 201, and a moving shell 203 is slidably installed on the outer surface of the four sliding rods 202. The moving shell 203 is lowered by the sliding rods 202, and the opposite sides of the fixed shell 201 and the moving shell 203 are fixedly installed with installation shells 209, and knob molds 210 are slidably installed inside the two installation shells 209, and the knob mold 210 is slid out through the installation shell 209.

[0023] Among them, two threaded sleeves 205 are rotatably installed between the inner top wall and the inner bottom wall of the fixed shell 201 and the movable shell 203, and two synchronous plates 207 are threadedly installed on the outer surfaces of the four threaded sleeves 205. Two plug rods 208 are fixedly installed on the opposite side of the two synchronous plates 207. The four threaded sleeves 205 drive the two synchronous plates 207 to move to the opposite side.

[0024] Among them, two rotating rods 204 with one end penetrating and extending to the outside are rotatably installed on the inner bottom wall of the bottom shell 1. The outer surfaces of the two rotating rods 204 are slidably connected to the inner surfaces of four threaded sleeves 205. Slide bars 206 are fixedly installed on the left and right side walls of the inner cavity of the threaded sleeve 205. Slide grooves are provided on the left and right sides of the outer surface of the rotating rod 204. The inner surfaces of the two slide grooves are slidably connected to the outer surfaces of the two slide bars 206 respectively. The two rotating rods 204 drive the four threaded sleeves 205 to rotate through the slide bars 206.

[0025] Specifically, the two rotating rods 204 drive the four threaded sleeves 205 to rotate through the sliding bar 206, and the four threaded sleeves 205 drive the two synchronous plates 207 to move to opposite sides, so that the insertion rod 208 no longer fixes the knob mold 210. The knob mold 210 is slid out through the mounting shell 209 and replaced with a new knob mold 210. Similarly, the insertion rod 208 is driven to fix the knob mold 210 to complete the replacement of the knob mold 210. The operation steps are simple, and the replacement efficiency of the knob mold 210 is improved.

[0026] In this embodiment, the power mechanism 3 includes a motor 301, the bottom of the motor 301 is fixedly connected to the inner bottom wall of the bottom shell 1, and the output shaft of the motor 301 is fixedly connected to two worm shafts 302 through a coupling. The motor 301 drives the two worm shafts 302 to rotate, and the outer surfaces of the two rotating rods 204 are fixedly installed with worm wheels 303. The outer surfaces of the two worm wheels 303 are respectively meshed with the outer surfaces of the two worm shafts 302, and the two worm shafts 302 drive the two rotating rods 204 to rotate through the two worm wheels 303.

[0027] Among them, a top plate 304 is fixedly installed on the top of the four sliding rods 202, the bottom of the top plate 304 is rotatably connected to the top of the two rotating rods 204, and an electric lifting rod 305 is fixedly installed on the top of the top plate 304. The bottom of the telescopic axis of the electric lifting rod 305 is fixedly connected to the top of the moving shell 203, and the electric lifting rod 305 drives the moving shell 203 to descend through the sliding rod 202.

[0028] Specifically, the electric lifting rod 305 drives the movable shell 203 to descend through the sliding rod 202, so that the two knob molds 210 are bridged, and the two knob molds 210 are injection molded, and then the plastic knob is produced. When the knob mold 210 is replaced, the motor 301 is started to drive the two worm shafts 302 to rotate. The two worm shafts 302 drive the two rotating rods 204 to rotate through the two worm wheels 303, which will not affect the operation of the molding mold and meet the user's usage needs.

[0029] The working principle of the above embodiment is:

[0030] (1) When producing a plastic knob, the electric lifting rod 305 is started to drive the movable shell 203 to descend through the sliding rod 202, so that the two knob molds 210 are bridged, and the two knob molds 210 are injection molded, and then the plastic knob is produced. When the knob mold 210 is replaced, the motor 301 is started to drive the two worm shafts 302 to rotate, and the two worm shafts 302 drive the two rotating rods 204 to rotate through the two worm wheels 303.

[0031] (2) The two rotating rods 204 drive the four threaded sleeves 205 to rotate through the sliding bar 206. The four threaded sleeves 205 drive the two synchronous plates 207 to move to opposite sides, so that the insertion rod 208 no longer fixes the knob mold 210. The knob mold 210 is slid out through the mounting shell 209 and replaced with a new knob mold 210. Similarly, the insertion rod 208 is driven to fix the knob mold 210, and the replacement of the knob mold 210 is completed.

[0032] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0033] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A molding die for producing a plastic knob, comprising a bottom shell (1), characterized in that: A disassembly mechanism (2) is provided above the bottom shell (1), and a power mechanism (3) is provided inside the bottom shell (1); The disassembly and assembly mechanism (2) comprises a fixed shell (201), the bottom of the fixed shell (201) is fixedly connected to the top of the bottom shell (1), four sliding rods (202) are fixedly installed on the top of the fixed shell (201), and a movable shell (203) is slidably installed on the outer surfaces of the four sliding rods (202), two threaded sleeves (205) are rotatably installed between the inner top wall and the inner bottom wall of the fixed shell (201) and the movable shell (203), two synchronous plates (207) are threadedly installed on the outer surfaces of the four threaded sleeves (205), and two plug rods (208) are fixedly installed on the opposite sides of the two synchronous plates (207).

2. A molding die for producing a plastic knob according to claim 1, characterized in that: The power mechanism (3) comprises a motor (301), the bottom of the motor (301) being fixedly connected to the inner bottom wall of the bottom shell (1), and the output shaft of the motor (301) being fixedly connected to two worm shafts (302) via a coupling.

3. The molding die for producing a plastic knob according to claim 2, characterized in that: Two rotating rods (204) with one end penetrating through and extending to the outside of the bottom shell (1) are rotatably mounted on the inner bottom wall of the bottom shell (1), and the outer surfaces of the two rotating rods (204) are slidably connected to the inner surfaces of the four threaded sleeves (205).

4. The molding die for producing a plastic knob according to claim 3, characterized in that: Slide bars (206) are fixedly mounted on the left and right side walls of the inner cavity of the threaded sleeve (205), and slide grooves are provided on the left and right sides of the outer surface of the rotating rod (204), and the inner surfaces of the two slide grooves are respectively slidably connected to the outer surfaces of the two slide bars (206).

5. The molding die for producing a plastic knob according to claim 1, characterized in that: A mounting shell (209) is fixedly mounted on opposite sides of the fixed shell (201) and the movable shell (203), and a knob mold (210) is slidably mounted inside the two mounting shells (209).

6. The molding die for producing a plastic knob according to claim 3, characterized in that: A worm gear (303) is fixedly mounted on the outer surfaces of the two rotating rods (204), and the outer surfaces of the two worm gears (303) are respectively meshed with the outer surfaces of the two worm shafts (302).

7. The molding die for producing a plastic knob according to claim 2, characterized in that: A top plate (304) is fixedly mounted on the top of the four sliding rods (202), and the bottom of the top plate (304) is rotatably connected to the tops of the two rotating rods (204).

8. The molding die for producing a plastic knob according to claim 7, characterized in that: An electric lifting rod (305) is fixedly mounted on the top of the top plate (304), and the bottom of the telescopic shaft of the electric lifting rod (305) is fixedly connected to the top of the moving shell (203).

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