One-shot burr removing assembly for double-color watchband

Abstract

The utility model discloses a bicolor watchband first-shot burr removing assembly. The bicolor watchband first-shot burr removing assembly comprises a mold core and a material pressing jig. A material pressing head is arranged on a supporting plate and extends outwards in the direction of a die cavity, a plurality of material pressing parts matched with products in a pressing mode are integrally and downwards arranged at the lower end of the material pressing head in a protruding mode, the multiple material pressing parts are arranged at intervals, and an air groove is defined by every two adjacent material pressing parts. After first-shot injection molding is completed, the material pressing jig is moved to the position above the mold core, a product in the mold cavity is pressed through the material pressing part, air is blown into the air groove in cooperation with an external high-pressure air gun, and burrs on the outer side of the product pressed by the material pressing part are removed through high-pressure air; the condition of product displacement in the burr removing process is avoided in cooperation with pressing of the material pressing part, and the quality of secondary injection products is guaranteed; and the supporting plate is detachably arranged on the fixing frame and corresponds to the position of the mold cavity, so that different material pressing heads can be conveniently replaced according to different products, and the use limitation is smaller.

Description

Two-tone watch strap burr removal kit Technical Field

[0001] This utility model relates to the technology of watch strap processing, and in particular to a two-color watch strap burr removal component. Background Technology

[0002] A wristwatch, also known as a wristwatch, is a portable timepiece worn on the body. With the development of technology, the emergence of smartwatches has expanded the function of watches beyond simply telling time, providing greater convenience to people's daily lives. In addition to its basic functions, a watch also serves a decorative purpose, with people wearing different types of watches according to their personal preferences. Furthermore, the watch strap is an important component for wearing a watch, and people often choose different styles of straps to further enhance its decorative appeal.

[0003] To further enhance the decorative performance of watch straps, a two-tone strap has emerged. The manufacturing process involves first injection molding the first color, followed by a second injection molding to create the second color. After the first injection molding, a significant amount of burrs is generated, requiring removal before the second injection molding. Current burr removal methods involve manually removing the excess burrs using specialized tools after removing the first-injection molded product. This method is not only complex and inefficient, but also prone to displacement when the product is placed back into the mold, affecting the second injection molding and ultimately impacting the product's quality. Therefore, it is necessary to research a new technical solution to address these issues. Summary of the Invention

[0004] In view of this, the present invention addresses the deficiencies of the existing technology, and its main objective is to provide a two-color watch strap burr removal component that can effectively solve the problems of complex burr removal process, low burr removal efficiency, and easy product displacement that affects the quality of the second-shot product.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A two-tone watch strap burr removal assembly includes a mold core and a pressure fixture; the mold core has a mold cavity with an open upper end; the pressure fixture includes a fixing frame, a support plate, and a pressure head; the fixing frame cooperates with the mold core; the support plate is detachably mounted on the fixing frame and corresponds to the position of the mold cavity; the pressure head is mounted on the support plate and extends outward toward the mold cavity, and the lower end of the pressure head is integrally provided with multiple pressure parts that press against the product, the multiple pressure parts are arranged at intervals, and an air groove is formed between adjacent pressure parts.

[0007] As a preferred option, the mold cavities are arranged in an array of multiple units, and correspondingly, there are multiple support plates and pressure heads, with each support plate and pressure head corresponding to a specific mold cavity position.

[0008] As a preferred embodiment, the mounting frame has a mounting groove extending through the upper and lower surfaces of the mounting frame, and the support plate is detachably disposed in the mounting groove.

[0009] As a preferred option, the mold core is provided with multiple positioning holes with open tops arranged at intervals, and the lower end face of the fixing frame is provided with multiple positioning pins that cooperate with the positioning holes.

[0010] As a preferred option, the outer peripheral sidewall of the lower end of the positioning post is provided with a guide portion that mates with the positioning hole, and the size of the lower end of the guide portion is smaller than the size of the upper end of the guide portion.

[0011] As a preferred embodiment, the fixing frame has a first fixing hole, and the support plate has a second fixing hole that mates with the first fixing hole. The support plate is installed on the fixing frame by a first fixing bolt passing through the first fixing hole and the second fixing hole in sequence.

[0012] As a preferred option, the upper end of the fixing frame is provided with two handles, which are arranged symmetrically on the left and right.

[0013] As a preferred option, the pressure head is detachably mounted on the support plate by a second fixing bolt.

[0014] As a preferred option, the upper end of the mold core has an integrally extended support column.

[0015] Compared with the prior art, this utility model has obvious advantages and beneficial effects. Specifically, as can be seen from the above technical solution:

[0016] The pressure head is mounted on a support plate and extends outward toward the mold cavity. The lower end of the pressure head has multiple downward-protruding pressure sections that clamp the product. These pressure sections are spaced apart, and air grooves are formed between adjacent pressure sections. After one injection molding cycle, the pressure jig moves above the mold core and clamps the product in the mold cavity using the pressure sections. An external high-pressure air gun blows air into the air grooves, removing burrs from the outer edge of the product. This not only makes burr removal more convenient and efficient but also eliminates the need to remove the first injection product. The clamping action of the pressure sections prevents product displacement during burr removal, ensuring the quality of the second injection. Furthermore, the support plate is detachably mounted on a fixed frame and aligns with the mold cavity position, allowing for easy replacement of different pressure heads for different products, thus reducing limitations in its use.

[0017] To more clearly illustrate the structural features and effects of this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments. Attached Figure Description

[0018] Figure 1 is a three-dimensional structural schematic diagram of a preferred embodiment of the present invention;

[0019] Figure 2 is a three-dimensional structural diagram of the pressing fixture in a preferred embodiment of the present invention;

[0020] Figure 3 is a schematic diagram of the exploded state of the pressure fixture in a preferred embodiment of the present invention.

[0021] Explanation of reference numerals in the attached diagram:

[0022] 10. Mold core 101. Mold cavity

[0023] 102, Positioning hole 11, Support column

[0024] 20. Pressing fixture 201. Air tank

[0025] 202, Mounting slot; 203, First fixing hole

[0026] 204, Second fixing hole; 21, Fixing bracket

[0027] 211. Positioning post; 212. Guide section

[0028] 213. Handle; 22. Support plate

[0029] 221. First fixing bolt; 23. Pressure head

[0030] 231. Pressing part; 232. Second fixing bolt. Detailed Implementation

[0031] Please refer to Figures 1 to 3, which show the specific structure of a preferred embodiment of the present invention, including a mold core 10 and a pressing fixture 20.

[0032] The mold core 10 has a mold cavity 101 with an open upper end; in this embodiment, the mold cavities 101 are arranged in an array of multiple cavities. The mold core 10 has multiple positioning holes 102 with open upper ends arranged at intervals. A support column 11 extends integrally upward from the upper end of the mold core 10. The upper end of the support column 11 supports the pressure fixture 20, thereby limiting the downward pressure range of the pressure fixture 20 and preventing excessive downward pressure from damaging the product.

[0033] The pressing fixture 20 includes a fixed frame 21, a support plate 22, and a pressing head 23. The fixed frame 21 is fitted with the mold core 10. The support plate 22 is detachably mounted on the fixed frame 21 and corresponds to the position of the mold cavity 101. The pressing head 23 is mounted on the support plate 22 and extends outward toward the mold cavity 101. The lower end of the pressing head 23 is integrally provided with multiple pressing parts 231 that are pressed together with the product. The multiple pressing parts 231 are arranged at intervals, and an air groove 201 is formed between two adjacent pressing parts 231. Through the pressing of the pressing parts 231 and the setting of the air groove 201, high-pressure gas can be blown into the air groove 201 with the help of an external high-pressure air gun, thereby blowing out the excess burrs on the outside of the product pressed by the pressing parts 231. In actual operation, after the burrs are blown out, the pressing fixture 20 is moved upward, and then the burrs that have been blown out but remain in the mold cavity 101 can be removed manually by inspection.

[0034] In this embodiment, multiple support plates 22 and pressure heads 23 are correspondingly arranged, with each support plate 22 and pressure head 23 corresponding to a corresponding mold cavity 101, enabling simultaneous deburring of multiple injection products in multiple mold cavities 101. The fixing frame 21 has mounting grooves 202 penetrating its upper and lower surfaces. The support plate 22 is detachably mounted in the mounting grooves 202. The hollow design of the fixing frame 21 significantly reduces its weight, facilitating the movement of the pressure fixture 20. The lower end face of the fixing frame 21 is provided with multiple positioning posts 211 that mate with positioning holes 102. The engagement of these positioning posts 211 with the positioning holes 102 allows for positioning of the pressure fixture 20 during pressing, ensuring that the pressure head 23 accurately presses onto the corresponding product, thus guaranteeing the subsequent deburring process. The outer peripheral sidewall at the lower end of the positioning post 211 is provided with a guide portion 212 that mates with the positioning hole 102. The size of the lower end of the guide portion 212 is smaller than the size of the upper end of the guide portion 212. The provision of the guide portion 212 facilitates the mating process between the guide portion 212 and the positioning hole 102.

[0035] The fixing frame 21 has a first fixing hole 203, and the support plate 22 has a second fixing hole 204 that mates with the first fixing hole 203. The support plate 22 is mounted on the fixing frame 21 by a first fixing bolt 221 passing through the first fixing hole 203 and the second fixing hole 204 in sequence, thereby realizing the disassembly process between the support plate 22 and the fixing frame 21. The upper end of the fixing frame 21 is provided with two handles 213, which are symmetrically arranged on the left and right sides. When the operator moves the pressing fixture 20, he / she can move it by gripping the two handles 213, making the material moving process of the pressing fixture 20 more convenient. The pressing head 23 is detachably mounted on the support plate 22 by a second fixing bolt 232, further facilitating the replacement process of the pressing head 23. When a pressing head 23 is damaged, it can be replaced individually, thereby reducing the operating cost.

[0036] The key design feature of this invention is as follows: A pressure head is mounted on a support plate and extends outward toward the mold cavity. The lower end of the pressure head has multiple downward-protruding pressure sections that clamp the product. These pressure sections are spaced apart, and an air groove is formed between adjacent pressure sections. After one injection molding cycle, the pressure fixture moves above the mold core and clamps the product in the mold cavity using the pressure sections. An external high-pressure air gun blows air into the air groove, removing burrs from the outer edge of the product. This not only makes burr removal more convenient and efficient but also eliminates the need to remove the first injection product. Furthermore, the clamping action of the pressure sections prevents product displacement during burr removal, ensuring the quality of the second injection. The detachable support plate is mounted on a fixed frame and aligns with the mold cavity position, allowing for easy replacement of different pressure heads for different products, thus reducing limitations in application.

[0037] The above description is merely a preferred embodiment of the present utility model and does not constitute any limitation on the technical scope of the present utility model. Therefore, any minor modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model shall still fall within the scope of the technical solution of the present utility model.

Claims

1. A two-color watch strap burr removal component, characterized in that: The device includes a mold core and a pressing fixture; the mold core has a mold cavity with an open upper end; the pressing fixture includes a fixed frame, a support plate, and a pressing head; the fixed frame cooperates with the mold core; the support plate is detachably mounted on the fixed frame and corresponds to the position of the mold cavity; the pressing head is mounted on the support plate and extends outward toward the mold cavity, and the lower end of the pressing head is integrally provided with multiple pressing parts that are pressed together with the product, the multiple pressing parts are arranged at intervals, and an air groove is formed between two adjacent pressing parts.

2. The two-color watch strap burr removal assembly according to claim 1, characterized in that: The mold cavities are arranged in an array of multiple units, and correspondingly, there are multiple support plates and pressure heads, with each support plate and pressure head corresponding to a specific mold cavity position.

3. The two-color watch strap burr removal assembly according to claim 1, characterized in that: The fixing frame has a mounting groove that runs through the upper and lower surfaces of the fixing frame, and the support plate is detachably installed in the mounting groove.

4. The two-color watch strap burr removal assembly according to claim 1, characterized in that: The mold core has multiple positioning holes with open tops arranged at intervals, and the lower end face of the fixing frame is provided with multiple positioning pins that cooperate with the positioning holes.

5. The two-color watch strap burr removal assembly according to claim 4, characterized in that: The lower end of the positioning post has a guide portion on its outer peripheral sidewall that mates with the positioning hole. The size of the lower end of the guide portion is smaller than the size of the upper end of the guide portion.

6. The two-color watch strap burr removal assembly according to claim 1, characterized in that: The fixing frame has a first fixing hole, and the support plate has a second fixing hole that mates with the first fixing hole. The support plate is installed on the fixing frame by a first fixing bolt passing through the first fixing hole and the second fixing hole in sequence.

7. The two-color watch strap burr removal assembly according to claim 1, characterized in that: The upper end of the fixing frame is provided with two handles, which are arranged symmetrically on the left and right.

8. The two-color watch strap burr removal assembly according to claim 1, characterized in that: The pressure head is detachably mounted on the support plate by a second fixing bolt.

9. The two-color watch strap burr removal assembly according to claim 1, characterized in that: The upper end of the mold core has an integrally extended support column extending upwards.

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