Mold assembly for plastic bottle cap production

Abstract

The utility model discloses a mold assembly for producing a plastic bottle cap, and particularly relates to the field of bottle cap molds, the mold assembly comprises a supporting seat, a supporting plate is fixedly connected in the supporting seat, a plurality of groups of lower molds are fixedly connected to the top of the supporting plate, and the lower molds penetrate through the surface of the supporting plate; and a moving mechanism is arranged at the top of the supporting seat. The output end of a first motor drives a first threaded rod to rotate, so that a moving block and a connecting plate are driven to move until an upper mold is in butt joint with a corresponding lower mold, then the output end of an air cylinder drives a moving frame to move upwards, an anti-sticking layer makes contact with the bottom of the lower mold, and therefore forming liquid entering the mold is supported by the anti-sticking layer; after the forming liquid is cooled, bottle cap forming bodies are formed, and then all the bottle cap forming bodies are ejected out through a demolding plate. According to the device, a plurality of bottle caps can be produced at a time, the production efficiency is greatly improved, and all the bottle caps can be ejected at a time, so that the effects of improving the production efficiency and saving the device consumption are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of bottle cap molds, and specifically to a mold assembly for plastic bottle cap production. Background Technique

[0002] In the field of daily commodities, when packaging liquid commodities, they are often filled into plastic bottles and then sealed by assembling plastic bottle caps. Therefore, plastic bottle caps are widely used in the packaging field. When it comes to the production of plastic bottle caps, special mold assemblies are required to cooperate in the operation to complete the batch production of plastic bottle caps.

[0003] The mold assemblies for plastic bottle cap production are key parts in the manufacturing process of plastic bottle caps, and they work together to ensure the quality and production efficiency of the bottle caps.

[0004] A Chinese patent discloses a plastic bottle cap mold with the publication number of CN211105298U and the application date of October 19, 2019. In this patented technology, through the cooperation among the upper mold, lower mold, slider, first spring, second vertical rod, inclined rod, second spring, second cross plate and round rod, after placing the upper and lower molds, the second vertical rod can be moved upward to make the inclined rod rotate outward, solving the problem that the position of the upper and lower molds is easily misaligned due to accidental collision in the prior art. Through the cooperation among the worm, worm gear, turntable, screw rod, sleeve, cross plate, piston and cavity, rotating the turntable can make the screw rod rotate to realize the lifting of the sleeve and piston, solving the problem that it is difficult to demold the existing injection molds. However, the above device can only produce one bottle cap at a time. In actual production, the demand for bottle caps is very large, so the production efficiency of bottle caps is also of utmost importance. If multiple sets of the above devices are used to produce bottle caps, although the production efficiency is improved, the cost of purchasing the devices is too high because when using multiple sets of the above devices, many components are repeated, such as the demolding mechanism. Therefore, the above device is not suitable for large-scale production of bottle caps. Therefore, the inventor provides a mold assembly for plastic bottle cap production to solve the problems raised in the above background technique. Content of the Utility Model

[0005] The purpose of the utility model is to provide a mold assembly for plastic bottle cap production, achieving the effect of improving production efficiency while saving the cost of the device.

[0006] The purpose of the utility model can be realized by the following technical solutions:

[0007] A mold assembly for producing plastic bottle caps, including a support base. Inside the support base, a support plate is fixedly connected. On the top of the support plate, multiple lower molds are fixedly connected, and the lower molds penetrate the surface of the support plate. A moving mechanism is arranged on the top of the support base. The moving mechanism includes a fixed box fixedly connected to the rear side of the top of the support base. Inside the fixed box, a first threaded rod is arranged. A moving block is threadedly connected to the first threaded rod. The front of the moving block is fixedly connected to a connecting plate. Multiple upper molds are fixedly connected to the bottom of the connecting plate. An infusion tube penetrating the surface of the connecting plate is fixedly connected to the top of the upper mold. A first motor is fixedly connected to the top of the fixed box. The output end of the first motor is fixedly connected to the first threaded rod. A forming mechanism is arranged at the bottom of the lower mold

[0008] As a further scheme of the present utility model: The side width of the moving block is adapted to the cross-sectional width of the opening of the fixed box.

[0009] As a further scheme of the present utility model: The forming mechanism includes a cylinder fixedly connected to the inner side of the support base. The output end of the cylinder is fixedly connected to a moving frame. A non-sticking layer is arranged on the top of the moving frame. A movable demolding plate is arranged on the top of the non-sticking layer. Multiple top blocks are fixedly connected to the top of the demolding plate.

[0010] As a further scheme of the present utility model: Heat dissipation fins are installed on the top side inside the moving frame. As a further scheme of the present utility model:

[0011] As a further scheme of the present utility model: Sliding grooves are opened on the inner walls on both sides of the support base. An opening groove is opened on the front of the support base. An L-shaped plate is fixedly connected to the front of the support base. A second threaded rod is rotatably connected to one side of the L-shaped plate. One side of the second threaded rod is rotatably connected to the inner side of the sliding groove. A sliding block is threadedly connected to the second threaded rod. A sliding rod is fixedly connected to the other side of the L-shaped plate. One side of the sliding rod is fixedly connected to the inner side of the sliding groove. A sliding block is slidably connected to the sliding rod. The inner sides of the two sliding blocks are connected to the demolding plate through a connecting block.

[0012] As a further scheme of the present utility model: Guide grooves are opened on both sides of the demolding plate. Guide rods are fixedly connected to both sides inside the guide grooves. The guide rods are slidably connected to the corresponding connecting blocks. A support spring is fixedly connected to the bottom of the connecting block. The bottom of the support spring is fixedly connected to the guide groove. A second motor is installed on one side of the support base. The output end of the second motor is fixedly connected to the second threaded rod.

[0013] Compared with the prior art, the beneficial effects of the present utility model are:

[0014] For the mold assembly used in the production of plastic bottle caps, the first motor is started by an external power supply. The output end of the first motor drives the first threaded rod to rotate, thereby driving the moving block and the connecting plate to move until the upper mold is docked with the corresponding lower mold. The cylinder is started by an external power supply. The output end of the cylinder drives the moving frame to move upward, so that the anti-sticking layer contacts the bottom of the lower mold. Thus, the forming liquid entering the mold is supported by the anti-sticking layer. After the forming liquid cools, the bottle cap formed body is formed. Then, all the bottle cap formed bodies are ejected by the demolding plate. Since the above components can produce multiple bottle caps at a time, the production efficiency is greatly improved, and all the bottle caps can be ejected at one time, thus achieving the effect of improving the production efficiency while saving the device consumption.

[0015] In addition, for the mold assembly used in the production of plastic bottle caps, the output end of the cylinder extends to drive the moving frame to move upward. The moving frame will contact the bottom of the demolding plate and drive the demolding plate to move upward. Thus, the guide rod slides along the inside of the surface of the connecting block, and at the same time, the supporting spring is compressed until the top block ejects the bottle cap formed body inside the lower mold from the inside of the lower mold, thus facilitating the worker to pick up all the bottle cap formed bodies. After taking them out, the output end of the cylinder moves downward to drive the moving frame to move downward, and at the same time, the rebounding force of the supporting spring drives the demolding plate to move downward until the demolding plate returns to its original position. Thus, the overall demolding effect of the bottle cap is achieved. Description of the Drawings

[0016] Figure 1 It is a schematic diagram of the overall structure of a mold assembly for the production of plastic bottle caps;

[0017] Figure 2 It is a schematic cross-sectional view of the overall structure in a mold assembly for the production of plastic bottle caps;

[0018] Figure 3 It is a schematic diagram of the overall structure cross-section from another perspective in a mold assembly for the production of plastic bottle caps;

[0019] Figure 4 It is a schematic diagram of the structure at A in a mold assembly for the production of plastic bottle caps;

[0020] Figure 5 It is a schematic top cross-sectional view of the partial structure in a mold assembly for the production of plastic bottle caps.

[0021] In the figure: 10, support base; 11, support plate; 13, lower mold; 20, moving mechanism; 201, fixed box; 202, first threaded rod; 203, moving block; 204, first motor; 205, connecting plate; 206, upper mold; 207, infusion tube; 30, forming mechanism; 301, cylinder; 302, moving frame; 303, anti-sticking layer; 304, heat sink; 305, sliding groove; 306, opening groove; 307, L-shaped plate; 308, second threaded rod; 309, sliding block; 310, demolding plate; 311, top block; 312, connecting block; 313, guiding groove; 314, guiding rod; 315, supporting spring; 316, sliding rod; 317, second motor. Detailed implementation mode

[0022] As Figure 1 shown, a mold assembly for plastic bottle cap production includes a support base 10. A support plate 11 is fixedly connected to the top side of the inner part of the support base 10. A plurality of lower molds 13 are fixedly connected to the top of the support plate 11. The lower molds 13 penetrate through the surface of the support plate 11. A forming mechanism 30 is arranged at the bottom of the lower molds 13. A moving mechanism 20 is arranged at the top of the support base 10.

[0023] Reference Figure 1 , the moving mechanism 20 includes a fixed box 201 fixedly connected to the rear side of the top of the support base 10. The upper and lower sides inside the fixed box 201 are jointly rotatably connected with a first threaded rod 202. A moving block 203 is threadedly connected to the first threaded rod 202. A connecting plate 205 is fixedly connected to the front of the moving block 203. A plurality of upper molds 206 are fixedly connected to the bottom of the connecting plate 205. An infusion tube 207 penetrating through the surface of the connecting plate 205 is fixedly connected to the top of the upper mold 206. A first motor 204 is fixedly connected to the top of the fixed box 201. The output end of the first motor 204 is fixedly connected to the first threaded rod 202.

[0024] The side width of the moving block 203 is adapted to the cross-sectional width of the opening of the fixed box 201, so as to achieve the guiding effect on the movement of the moving block 203. During use, the first motor 204 is started through an external power supply. The output end of the first motor 204 drives the first threaded rod 202 to rotate, thereby driving the moving block 203 and the connecting plate 205 to move until the upper mold 206 is butted with the corresponding lower mold 13. Then, a forming liquid is injected into the molds through the infusion tube 207. After the forming liquid is formed in the molds, a bottle cap formed body is formed.

[0025] Reference Figures 2-5, the forming mechanism 30 includes a cylinder 301 fixedly connected to the inner side of the support base 10. The output end of the cylinder 301 is fixedly connected with a moving frame 302. A non-sticking layer 303 is arranged on the top of the moving frame 302. A movable demolding plate 310 is arranged on the top of the non-sticking layer 303. Multiple top blocks 311 are fixedly connected to the top of the demolding plate 310. When in use, the cylinder 301 is started by an external power supply. The output end of the cylinder 301 drives the moving frame 302 to move upward, so that the non-sticking layer 303 contacts the bottom of the lower mold 13. Thus, the forming liquid entering the mold is supported by the non-sticking layer 303. Due to the non-sticking property of the non-sticking layer 303, when taking out, the formed bottle cap will not stick to the surface of the non-sticking layer 303.

[0026] A heat sink 304 is installed on the inner top side of the moving frame 302. When in use, the heat sink 304 is started by an external power supply. The heat sink 304 absorbs the heat of the forming liquid inside the mold through the moving frame 302, so as to achieve the effect of accelerating the forming of the bottle cap.

[0027] Sliding grooves 305 are formed on the inner walls of the left and right sides of the support base 10. An opening groove 306 is formed on the front surface of the support base 10. An L-shaped plate 307 is fixedly connected to the front surface of the support base 10. The left end of the rear side of the L-shaped plate 307 is rotatably connected with a second threaded rod 308. The rear side of the second threaded rod 308 is rotatably connected to the inner side of the sliding groove 305. A sliding block 309 is threadedly connected to the second threaded rod 308. A sliding rod 316 is fixedly connected to the right end of the rear side of the L-shaped plate 307. The rear side of the sliding rod 316 is fixedly connected to the inner side of the right sliding groove 305. A sliding block 309 is slidably connected to the sliding rod 316. The inner sides of the two sliding blocks 309 are connected to the demolding plate 310 through a connecting block 312.

[0028] Guide grooves 313 are formed on the left and right sides of the demolding plate 310. Guide rods 314 are fixedly connected to the upper and lower sides of the guide grooves 313. The guide rods 314 are slidably connected to the corresponding connecting blocks 312. A support spring 315 is fixedly connected to the bottom of the connecting block 312. The bottom of the support spring 315 is fixedly connected to the guide groove 313. A second motor 317 is installed on the left end of the rear side of the support base 10. The output end of the second motor 317 is fixedly connected to the second threaded rod 308.

[0029] Before the mold is formed, the second motor 317 is started through an external power supply. The output end of the second motor 317 drives the second threaded rod 308 to rotate, so as to drive the stripping plate 310 to move forward through the sliding block 309 until it disengages from the inside of the support seat 10 and reaches directly above the L-shaped plate 307, thus facilitating the upward movement of the moving frame 302 to fit the bottom of the lower mold 13. After the forming liquid is formed in the mold, the output end of the cylinder 301 drives the moving frame 302 to move downward away from the lower mold 13, and then the output end of the second motor 317 rotates in reverse to drive the second threaded rod 308, thereby driving the stripping plate 310 into the inside of the support seat 10. Then the output end of the cylinder 301 extends again to drive the moving frame 302 to move upward. The moving frame 302 will contact the bottom of the stripping plate 310 and drive the stripping plate 310 to move upward, so that the guide rod 314 slides along the inside of the surface of the connecting block 312, and at the same time the support spring 315 is compressed until the top block 311 ejects the bottle cap formed body inside the lower mold 13 from the inside of the lower mold 13, thus facilitating the worker to fully take out the bottle cap formed body. After taking it out, the output end of the cylinder 301 moves downward to drive the moving frame 302 to move downward, and at the same time the rebounding force of the support spring 315 drives the stripping plate 310 to move downward until the stripping plate 310 returns to its original position.

[0030] The working principle of the present utility model is as follows: The first motor 204 is started through an external power supply. The output end of the first motor 204 drives the first threaded rod 202 to rotate, thereby driving the moving block 203 and the connecting plate 205 to move until the upper mold 206 is docked with the corresponding lower mold 13. Then the second motor 317 is started through an external power supply. The output end of the second motor 317 drives the second threaded rod 308 to rotate, so as to drive the stripping plate 310 to move forward through the sliding block 309 until it disengages from the inside of the support seat 10, thus facilitating the upward movement of the moving frame 302 to fit the bottom of the lower mold 13. After the forming liquid is formed in the mold, the output end of the cylinder 301 drives the moving frame 302 to move downward away from the lower mold 13, and then the output end of the second motor 317 rotates in reverse to drive the second threaded rod 308, thereby driving the stripping plate 310 into the inside of the support seat 10. Then the output end of the cylinder 301 extends again to drive the moving frame 302 to move upward. The moving frame 302 will contact the bottom of the stripping plate 310 and drive the stripping plate 310 to move upward, so that the guide rod 314 slides along the inside of the surface of the connecting block 312, and at the same time the support spring 315 is compressed until the top block 311 ejects the bottle cap formed body inside the lower mold 13 from the inside of the lower mold 13, thus facilitating the worker to fully take out the bottle cap formed body. After taking it out, the output end of the cylinder 301 moves downward to drive the moving frame 302 to move downward, and at the same time the rebounding force of the support spring 315 drives the stripping plate 310 to move downward until the stripping plate 310 returns to its original position.

[0031] The foregoing has shown and described the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above-mentioned embodiments. The above-mentioned embodiments and the descriptions in the specification are only used to illustrate the principles of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and all these changes and improvements fall within the scope of the present utility model claimed.

Claims

1. A mold assembly for plastic bottle cap production, including a support base (10), a support plate (11) is fixedly connected inside the support base (10), multiple lower molds (13) are fixedly connected to the top of the support plate (11), and the lower molds (13) penetrate the surface of the support plate (11); characterized in that, A moving mechanism (20) is provided at the top of the support base (10). The moving mechanism (20) includes a fixed box (201) fixedly connected to the rear side of the top of the support base (10). A first threaded rod (202) is arranged inside the fixed box (201). A moving block (203) is threadedly connected to the first threaded rod (202). A connecting plate (205) is fixedly connected to the front of the moving block (203). A plurality of upper molds (206) are fixedly connected to the bottom of the connecting plate (205). An infusion tube (207) penetrating the surface of the connecting plate (205) is fixedly connected to the top of the upper mold (206). A first motor (204) is fixedly connected to the top of the fixed box (201). The output end of the first motor (204) is fixedly connected to the first threaded rod (202). A forming mechanism (30) is arranged at the bottom of the lower mold (13).

2. The mold assembly for producing a plastic bottle cap according to claim 1, wherein, The side width of the moving block (203) is adapted to the cross-sectional width of the opening of the fixed box (201).

3. The mold assembly for producing plastic bottle caps according to claim 1, wherein, The forming mechanism (30) includes a cylinder (301) fixedly connected to the inner side of the support base (10). The output end of the cylinder (301) is fixedly connected to a moving frame (302). An anti-sticking layer (303) is arranged at the top of the moving frame (302). A movable demolding plate (310) is arranged at the top of the anti-sticking layer (303). A plurality of top blocks (311) are fixedly connected to the top of the demolding plate (310).

4. A mold assembly for producing plastic bottle caps according to claim 3, characterized in that, A heat sink (304) is installed on the top side inside the moving frame (302).

5. A mold assembly for producing plastic bottle caps according to claim 1, characterized in that, Sliding grooves (305) are formed in the inner walls on both sides of the support base (10). An opening groove (306) is formed in the front of the support base (10). An L-shaped plate (307) is fixedly connected to the front of the support base (10). A second threaded rod (308) is rotatably connected to one side of the L-shaped plate (307). One side of the second threaded rod (308) is rotatably connected to the inside of the sliding groove (305). A sliding block (309) is threadedly connected to the second threaded rod (308). A sliding rod (316) is fixedly connected to the other side of the L-shaped plate (307). One side of the sliding rod (316) is fixedly connected to the inside of the sliding groove (305). The sliding block (309) is slidably connected to the sliding rod (316). The inner sides of the two sliding blocks (309) are connected to the demolding plate (310) through a connecting block (312).

6. The mold assembly for producing a plastic bottle cap according to claim 5, characterized in that, Guide grooves (313) are formed on both sides of the demolding plate (310). Guide rods (314) are fixedly connected to both sides inside the guide grooves (313). The guide rods (314) are slidably connected to the corresponding connecting blocks (312). A support spring (315) is fixedly connected to the bottom of the connecting block (312). The bottom of the support spring (315) is fixedly connected to the guide groove (313). A second motor (317) is installed on one side of the support base (10). The output end of the second motor (317) is fixedly connected to the second threaded rod (308).

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