Split type mold of plastic massage stick

Abstract

The utility model discloses a split type mould for a plastic massage stick, which belongs to the field of moulds and comprises a lower mould base and an upper mould base, a lower mould plate is arranged at the top of the lower mould base through a partition plate, an upper mould plate is arranged at the bottom of the upper mould base, and the lower mould plate and the upper mould plate are matched to form a cavity. A cavity is formed in the upper mold base, a sprue communicated with the cavity is formed in the upper mold base, a guide assembly is arranged between the lower mold base and the upper mold base, a compensation protection mechanism used for improving safety and sealing performance during mold closing is arranged outside the upper mold plate, and the compensation protection mechanism comprises a fixing base arranged at the bottom of the upper mold base. And a buffer assembly is arranged on the fixed seat. According to the split type mold of the plastic massage stick, impact force can be effectively absorbed and dispersed during mold closing through the compensation protection mechanism, mold damage caused by too large mold closing impact force is prevented, meanwhile, the sealing performance of the mold is ensured, and plastic is prevented from overflowing or leaking in the injection molding process.

Description

Technical Field

[0001] This utility model relates to the field of mold technology, and in particular to a split mold for a plastic massage stick. Background Technology

[0002] The split mold for plastic massage sticks is an important tool in the manufacturing process. It usually consists of two parts: an upper mold and a lower mold. The upper mold is responsible for forming the upper part of the massage stick, while the lower mold forms the lower part. During the mold closing process, the upper and lower molds fit tightly together to ensure that the plastic can be evenly filled into the mold cavity, thereby producing a massage stick that meets the requirements.

[0003] When the molds for plastic massage sticks are assembled, they are usually made on a press. During the assembly process, the different parts of the mold will come into direct contact with each other. Due to the high pressure of the press, the surface or internal structure of the mold is easily damaged by impact, which accelerates the wear of the mold. After long-term use, due to wear and deformation, the gap between the upper and lower molds will gradually increase, resulting in a decrease in the accuracy of the assembly. Utility Model Content

[0004] The purpose of this utility model is to solve the problem that the existing plastic massage sticks with split designs are prone to impact damage to the surface or internal structure of the mold during mold closing, and to propose a split mold for plastic massage sticks.

[0005] To achieve the above objectives, the present invention employs the following technology: a split mold for a plastic massage stick, comprising a lower mold base and an upper mold base, wherein a lower template is provided on the top of the lower mold base via a partition, and an upper template is provided on the bottom of the upper mold base, wherein the lower template and the upper template cooperate to form a cavity, and a gate communicating with the cavity is provided on the upper mold base, a guide assembly is provided between the lower mold base and the upper mold base, and a compensation and protection mechanism for improving the safety and sealing of the mold during mold closing is provided on the outside of the upper template.

[0006] As a further description of the above technical solution: the compensation and protection mechanism includes a fixed seat disposed at the bottom of the upper mold base, and a buffer component is disposed on the fixed seat.

[0007] As a further description of the above technical solution: the buffer assembly includes a mounting bracket set on a fixed base through a mounting slot, a pad is provided at the bottom of the mounting bracket, and connecting rods penetrating the upper mold base are provided at both ends of the mounting bracket through connecting plates, and springs are sleeved on the outside of the connecting rods.

[0008] As a further description of the above technical solution: both ends of the connecting rod are provided with threaded ends, and limiting nuts that cooperate with the threaded ends are provided on the threaded ends.

[0009] As a further description of the above technical solution: the gasket has a plurality of cavities, and the cavities are connected to the external space through micropores.

[0010] As a further description of the above technical solution: the compensation and protection mechanism also includes a cooling water pipe installed on the fixed base, and the end of the cooling water pipe is provided with a pipe joint.

[0011] As a further description of the above technical solution: the guide assembly includes a guide rod disposed on the lower mold base and a guide sleeve disposed on the upper mold base and cooperating with the guide rod.

[0012] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0013] The compensation and protection mechanism can effectively absorb and disperse the impact force during mold closing, preventing mold damage caused by excessive impact force during mold closing, reducing the impact and wear of the mold during the mold closing process, reducing the number of mold repairs and maintenance costs, and helping to ensure the mold's sealing performance, preventing plastic from overflowing or leaking during injection molding, and ensuring that the mold can complete the mold closing action smoothly and accurately. Attached Figure Description

[0014] Figure 1 A schematic diagram of the overall structure according to an embodiment of the present utility model is shown;

[0015] Figure 2 A partial structural schematic diagram according to an embodiment of the present utility model is shown;

[0016] Figure 3 A schematic diagram of the compensation and protection mechanism provided according to an embodiment of the present invention is shown;

[0017] Figure 4 A schematic diagram of the structure of the buffer assembly provided according to an embodiment of the present invention is shown;

[0018] Figure 5 A schematic diagram of the connecting rod provided according to an embodiment of the present utility model is shown;

[0019] Figure 6 A schematic diagram of the structure of a gasket provided according to an embodiment of the present invention is shown.

[0020] Legend:

[0021] 1. Lower mold base; 2. Partition plate; 3. Lower mold plate; 4. Upper mold base; 5. Upper mold plate; 6. Gate; 7. Guide assembly; 8. Compensation and protection mechanism; 81. Fixed base; 82. Buffer assembly; 821. Mounting bracket; 822. Gasket; 8221. Cavity; 8222. Microhole; 823. Connecting plate; 824. Connecting rod; 8241. Threaded end; 8242. Limit nut; 825. Spring; 83. Cooling water pipe. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0023] Reference Figures 1-6 This embodiment provides a split mold for a plastic massage stick, including a lower mold base 1 and an upper mold base 4. The top of the lower mold base 1 is provided with a lower template 3 through a partition plate 2, and the bottom of the upper mold base 4 is provided with an upper template 5. The lower template 3 and the upper template 5 cooperate to form a cavity, and the upper mold base 4 is provided with a gate 6 that communicates with the cavity. A guide assembly 7 is provided between the lower mold base 1 and the upper mold base 4. The guide assembly 7 includes a guide rod provided on the lower mold base 1 and a guide sleeve provided on the upper mold base 4 that cooperates with the guide rod. The upper template 5 is provided with a compensation and protection mechanism 8 to improve the safety and sealing of the mold when it is closed.

[0024] In this invention, when using a split mold for injection molding of a plastic massage stick, the lower mold base 1 and the upper mold base 4 are fixed on the base and pressure end of the press. Under the action of the press mold closing, the upper template 5 of the upper mold base 4 and the lower template 3 of the lower mold base 1 are joined together. During the mold closing process, the guide rod and guide sleeve of the guide component 7 can play a guiding role to ensure accurate mold closing. After mold closing, the plastic solution used for molding the plastic massage stick enters the cavity formed by the lower template 3 and the upper template 5 through the gate 6, and then cools and solidifies under the cooling action of the cooling mechanism. After that, the mold is opened, and the unloading work of the injection-molded plastic massage stick is realized through the unloading mechanism between the partitions 2. During mold closing, the compensation and protection mechanism 8 can improve the safety and sealing of the mold during mold closing.

[0025] Specifically, such as Figures 2-4As shown, the compensation and protection mechanism 8 includes a fixed seat 81 disposed at the bottom of the upper mold base 4, a buffer assembly 82 disposed on the fixed seat 81, and a cooling water pipe 83 disposed on the fixed seat 81. The end of the cooling water pipe 83 is provided with a pipe joint. The buffer assembly 82 includes a mounting bracket 821 disposed on the fixed seat 81 through a mounting groove. A gasket 822 is disposed at the bottom of the mounting bracket 821. Connecting rods 824 penetrating the upper mold base 4 are disposed at both ends of the mounting bracket 821 through connecting plates 823, and springs 825 are sleeved on the outside of the connecting rods 824.

[0026] The mounting bracket 821 can move up and down on the mounting groove of the fixed seat 81. During the mold closing process, the upper mold plate 5 contacts the lower mold plate 3. Since the pad 822 at the bottom of the mounting bracket 821 protrudes from the lower side of the fixed seat 81, the pad 822 of the mounting bracket 821 will contact the lower mold plate 3 first during mold closing. As the mold closing progresses, the mounting bracket 821 and the pad 822 are gradually squeezed into the mounting groove. At this time, the connecting rod 824 on the connecting plate 823 passes through the upper mold seat 4 and compresses the spring 825, which, together with the rubber pad 822, buffers the impact force. To prevent mold damage caused by excessive impact force during mold closing, and to reduce impact and wear during mold closing, the number of mold repairs and repair costs can be reduced. Moreover, under the reset action of spring 825, the gasket 822 always presses against the lower mold plate 3, which helps to ensure the mold's sealing and prevent plastic from overflowing or leaking during injection. The cooling water pipe 83 on the fixed seat 81 is connected to the cooling system through a pipe joint, so that cooling water is circulated through the cooling water pipe 83. The cooling water is used to dissipate heat from the massage stick in the cavity, thereby increasing the molding speed of the massage stick.

[0027] It should be noted that both ends of the connecting rod 824 are provided with threaded ends 8241, and the threaded ends 8241 are provided with matching limit nuts 8242. The washer 822 has several cavities 8221, and the cavities 8221 are connected to the external space through micropores 8222.

[0028] Among them, after the limiting nut 8242 on the threaded end 8241 of the connecting rod 824 is removed, the connecting rod 824 can be easily removed from the connecting plate 823 and the upper mold base 4, thus facilitating the installation and removal of the connecting rod 824. The design of the cavity 8221 and micro-hole 8222 on the gasket 822 further enhances the elasticity of the gasket 822, enabling it to deform more effectively under pressure, thereby providing a better buffering effect and ensuring that the mold can complete the mold closing action smoothly and accurately.

[0029] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A split mold for a plastic massaging rod, characterized by, The mould comprises a lower mould base (1) and an upper mould base (4), the top of the lower mould base (1) is provided with a lower mould plate (3) through a partition (2), the bottom of the upper mould base (4) is provided with an upper mould plate (5), the lower mould plate (3) and the upper mould plate (5) are matched to form a cavity, the upper mould base (4) is provided with a gate (6) communicated with the cavity, a guide assembly (7) is arranged between the lower mould base (1) and the upper mould base (4), and the outer portion of the upper mould plate (5) is provided with a compensation protection mechanism (8) for improving the safety and sealing performance of the mould when the mould is closed.

2. The split mold for a plastic massaging rod according to claim 1, wherein The compensation protection mechanism (8) comprises a fixing seat (81) arranged at the bottom of the upper mould base (4), and a buffer assembly (82) is arranged on the fixing seat (81).

3. The split mold for a plastic massaging rod according to claim 2, wherein The buffer assembly (82) comprises a mounting frame (821) arranged on the fixing seat (81) through a mounting groove, a gasket (822) is arranged at the bottom of the mounting frame (821), connecting rods (824) penetrating through the upper mould base (4) are arranged at the two ends of the mounting frame (821) through connecting plates (823), and springs (825) are arranged on the outer portions of the connecting rods (824).

4. The split mold for a plastic massaging rod according to claim 3, wherein Threaded end heads (8241) are arranged at the two ends of the connecting rods (824), and limiting nuts (8242) matched with the threaded end heads (8241) are arranged on the threaded end heads (8241).

5. The split mold for a plastic massaging rod according to claim 3, wherein A plurality of cavities (8221) are formed in the gasket (822), and the cavities (8221) are communicated with the outside through micro-holes (8222).

6. A split mold for a plastic massaging rod according to claim 3 or 4 or 5, characterized in that The compensation protection mechanism (8) further comprises a cooling water pipe (83) arranged on the fixing seat (81), and pipe joints are arranged at the ends of the cooling water pipe (83).

7. The split mold for a plastic massaging rod according to claim 1, wherein The guide assembly (7) comprises a guide rod arranged on the lower mould base (1) and a guide sleeve arranged on the upper mould base (4) and matched with the guide rod.

Images