A three-ejection weldless vehicle-mounted thermos cup sleeve and its manufacturing process

Abstract

This three-shot, weld-free insulated car thermos cup sleeve consists of an inner sleeve layer, a handle frame, and an outer sleeve layer. The inner sleeve layer is located at the innermost layer, the handle frame is located around the outer edge of the inner sleeve layer, and the outer sleeve layer is injection molded and covers the outer surface of the inner sleeve layer. The manufacturing process is as follows: First, a three-stage injection molding mold is designed and manufactured based on the shape and size of the inner sleeve layer, handle frame, and outer sleeve layer. Then, raw materials are tested and determined: ABS+GF%15 for the handle frame, TUP100 for the inner sleeve layer, and TUP90 for the outer sleeve layer. Next, the handle frame is injected for the first time using a three-shot injection molding machine; the inner sleeve layer is injected for the second time; the TUP90 is then color-matched according to the color of the outer sleeve layer; and the outer sleeve layer is injected for the third time. Finally, the product is demolded. This cup sleeve has an elastic surface, a comfortable feel, and provides good insulation. The appearance color can be adjusted during manufacturing, and the multi-layered structure is formed in one piece.

Description

Technical Field

[0001] This invention relates to the field of thermos cup sleeve processing, specifically to a three-shot weld-free vehicle-mounted hot and cold thermos cup sleeve and its manufacturing process. Background Technology

[0002] Car thermos cup sleeves are specially designed for use with insulated cups in cars, providing both insulation and shock and impact protection. Modern car thermos cup sleeves are generally made of plastic or silicone, utilizing the low thermal conductivity of these materials to achieve insulation. They are compatible with glass, ceramic, and other materials, preventing burns and keeping hot drinks warm, while keeping cold drinks cool. These products typically feature anti-slip textures and elastic structures to reduce the risk of slipping and absorb impact.

[0003] However, similar car cup sleeves currently on the market traditionally rely on welding or screws for assembly when processing the handle and cup body. Furthermore, traditional cup sleeves are made of the same type of plastic inside and out, resulting in a monotonous appearance and a hard texture, leading to an uncomfortable grip. During manufacturing, the logo color must match the cup body or require additional printing. While other similar car thermos cups may have rubber or silicone jackets, they still require secondary processing to form the final product, resulting in long processing times and high manufacturing costs.

[0004] In view of this, the inventor conducted in-depth research on the aforementioned deficiencies in the prior art, which led to the creation of this case. Summary of the Invention

[0005] To address the aforementioned technical issues, we propose a three-shot weld-free vehicle-mounted thermos cup sleeve and its manufacturing process. The sleeve has a compact and lightweight structure, a certain degree of surface elasticity, a soft and comfortable feel, and provides significant insulation assistance. The appearance color can be adjusted at will during manufacturing, and the multi-layer structure is formed in one piece.

[0006] To achieve the above objectives, the technical solution of the present invention is as follows:

[0007] A three-element weldless vehicle-mounted thermos cup sleeve comprises an inner cup sleeve layer, a cup sleeve handle frame, and an outer cup sleeve layer. The cup sleeve handle frame includes a ring frame and a U-shaped handle, with the upper inner side of the U-shaped handle fixedly connected to the outer side of the ring frame. The outer cup sleeve layer includes an outer cup sleeve body and a U-shaped handle sleeve, with the upper inner end of the U-shaped handle sleeve connected to the top outer edge of the outer cup sleeve body, and a notch left between the lower inner end of the U-shaped handle sleeve and the outer wall of the outer cup sleeve body.

[0008] The inner layer of the cup sleeve is located at the innermost layer of the three-shot weldless vehicle-mounted hot and cold insulated cup sleeve. The annular skeleton is sleeved on the top periphery of the inner layer of the cup sleeve. The outer layer of the cup sleeve is injection molded and covers the outer surface of the inner layer of the cup sleeve, and the U-shaped handle covers the outer surface of the U-shaped handle, and the annular skeleton is sealed between the outer layer of the cup sleeve and the inner layer of the cup sleeve.

[0009] Preferably, the front of the middle section of the U-shaped handle is provided with a grid-like heat dissipation groove, and the two sides extending from the middle section to the lower end are provided with diversion grooves, and the inner side of the annular frame is provided with a guide groove near the U-shaped handle.

[0010] Preferably, the top of the outer layer of the cup sleeve is higher than the top of the inner layer of the cup sleeve, and during the injection molding of the outer layer of the cup sleeve, the top of the outer layer of the cup sleeve covers the top of the inner layer of the cup sleeve from above.

[0011] A manufacturing process for a three-ejection, weld-free insulated cup sleeve for vehicle-mounted hot and cold water bottles includes the following steps:

[0012] The first step is to design and manufacture a three-stage injection molding mold based on the shape and size of the inner layer of the cup sleeve, the handle frame of the cup sleeve, and the outer layer of the cup sleeve for the three-shot weldless vehicle-mounted hot and cold insulated cup sleeve.

[0013] The second step is to test the material formulas of the inner layer of the cup sleeve, the cup sleeve handle frame, and the outer layer of the cup sleeve separately, and determine that the material of the cup sleeve handle frame is ABS+GF%15, the material of the inner layer of the cup sleeve is TUP100, and the material of the outer layer of the cup sleeve is TUP90.

[0014] The third step is to use a three-shot injection molding machine with ABS+GF%15 as the raw material to inject the cup sleeve handle skeleton for the first time.

[0015] Step 4: Using a three-shot injection molding machine with TUP100 as the raw material, inject the inner layer of the cup sleeve for the second time;

[0016] Step 5: Match the color of TUP90 according to the color of the outer layer of the cup sleeve, and use a three-shot injection molding machine to inject the outer layer of the cup sleeve for the third time using the matched TUP90 as raw material.

[0017] Step 6: Demolding and cooling, removing burrs and scraps, and inspecting to obtain the final product.

[0018] Preferably, the three-segment injection molding mold produced in the first step is designed with a three-dimensional trademark molding unit, and the three-dimensional trademark graphic can be exposed at the same position on the inner layer and outer layer of the cup sleeve after injection molding.

[0019] Through the above technical solution, this invention utilizes advanced three-shot injection molding technology. By innovatively designing the three-shot injection mold and devising the three-shot injection molding process parameters and experimental raw material formulations for each shot, the multi-layered structure is processed and molded in a single step, eliminating unnecessary and complex processes. This results in a multi-layered injection-molded cup sleeve with enhanced insulation, a sturdy and durable handle and body suitable for various outdoor applications, a flexible outer layer that feels soft and comfortable, a high-end appearance, and a three-dimensional raised logo. The logo's color differs from the cup body color, and the handle and body are integrated. It provides significant insulation, is neither heat-conducting nor cold-conducting, and the appearance color can be adjusted freely. The logo's three-dimensional effect is prominent, highlighting the brand's prestige. Thus, it achieves the goals of novel design, reasonable process structure, and excellent application results. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a perspective view of a three-element weldless vehicle-mounted hot and cold insulated cup sleeve disclosed in an embodiment of the present invention;

[0022] Figure 2 This is a top view of a three-ejection weldless vehicle-mounted hot and cold insulated cup sleeve disclosed in an embodiment of the present invention;

[0023] Figure 3 for Figure 2 Sectional view along direction AA;

[0024] Figure 4 This is a three-dimensional view of the inner layer of a three-ejection weldless vehicle-mounted hot and cold insulated cup sleeve disclosed in an embodiment of the present invention;

[0025] Figure 5 This is a top view of the inner layer of a three-shot weldless vehicle-mounted hot and cold insulated cup sleeve disclosed in an embodiment of the present invention;

[0026] Figure 6 This is a three-dimensional view of the cup sleeve handle skeleton of a three-ejection weldless vehicle-mounted hot and cold insulated cup sleeve disclosed in an embodiment of the present invention;

[0027] Figure 7 This is a front view of the handle frame of a three-shot weldless vehicle-mounted hot and cold insulated cup sleeve disclosed in an embodiment of the present invention;

[0028] Figure 8This is a top view of the cup sleeve handle skeleton of a three-shot weldless vehicle-mounted hot and cold insulated cup sleeve disclosed in an embodiment of the present invention;

[0029] Figure 9 This is a side view of the cup sleeve handle skeleton of a three-shot weldless vehicle-mounted hot and cold insulated cup sleeve disclosed in an embodiment of the present invention;

[0030] Figure 10 This is a front view of the outer layer of a three-shot weldless vehicle-mounted hot and cold insulated cup sleeve disclosed in an embodiment of the present invention;

[0031] Figure 11 This is a top view of the outer layer of a three-shot weldless vehicle-mounted hot and cold insulated cup sleeve disclosed in an embodiment of the present invention;

[0032] Figure 12 This is a side view of the outer layer of a three-shot weldless vehicle-mounted hot and cold insulated cup sleeve disclosed in an embodiment of the present invention;

[0033] Figure 13 This is a process flow diagram for the preparation of a three-shot weldless vehicle-mounted hot and cold insulated cup sleeve, as disclosed in an embodiment of the present invention.

[0034] The numbers in the diagram represent the names of the corresponding components:

[0035] 1. Inner layer of cup sleeve 2. Cup sleeve handle frame 21. Ring frame 22. U-shaped handle 3. Outer layer of cup sleeve 31. Outer cup sleeve body 32. U-shaped handle 4. Notch 5. Mesh-shaped heat dissipation groove 6. Flow channel 7. Flow guide channel 8. 3D logo graphic Detailed Implementation

[0036] The technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0037] The present invention will be further described in detail below with reference to embodiments and specific implementation methods.

[0038] Example

[0039] like Figure 1-6As shown, a three-element weldless vehicle-mounted thermos cup sleeve consists of an inner cup sleeve layer 1, a cup sleeve handle frame 2, and an outer cup sleeve layer 3. The cup sleeve handle frame 2 includes a ring frame 21 and a U-shaped handle 22, with the upper inner side of the U-shaped handle 22 fixedly connected to the outer side of the ring frame 21. The outer cup sleeve layer 3 includes an outer cup sleeve body 31 and a U-shaped handle sleeve 32, with the upper inner end of the U-shaped handle sleeve 32 connected to the top outer edge of the outer cup sleeve body 31, and a notch 4 left between the lower inner end of the U-shaped handle sleeve 32 and the outer wall of the outer cup sleeve body 31.

[0040] like Figure 7-12 The inner layer 1 of the cup sleeve is located at the innermost layer of the three-shot weldless vehicle-mounted hot and cold insulated cup sleeve. The annular skeleton 21 is sleeved on the top periphery of the inner layer 1 of the cup sleeve. The outer layer 3 of the cup sleeve is injection molded and covers the outer surface of the inner layer 1 of the cup sleeve, and the U-shaped handle sleeve 32 covers the outer surface of the U-shaped handle 22, and the annular skeleton 21 is sealed between the outer layer 3 of the cup sleeve and the inner layer 1 of the cup sleeve.

[0041] For example Figure 6-9 As shown, in order to improve the heat dissipation effect, a grid-shaped heat dissipation groove 5 is provided at the front of the middle section of the U-shaped handle 22, and a diversion groove 6 is provided on both sides extending from the middle section to the lower end. A guide groove 7 is provided on the inner side of the annular frame 21 near the U-shaped handle 22, so as to facilitate the diversion and guidance of the molten raw material during injection molding.

[0042] Furthermore, the top of the outer cup sleeve 3 is higher than the top of the inner cup sleeve 1, and during the injection molding of the outer cup sleeve 3, the top of the outer cup sleeve 3 covers the top of the inner cup sleeve 1 from above. This allows the outer cup sleeve 3 to be fused and bonded to the inner cup sleeve 1 from above, forming a single unit.

[0043] Compared to similar cup sleeves in existing technology, this multi-layer injection-molded cup sleeve offers enhanced insulation. The handle and cup body are sturdy and durable, adaptable to various outdoor environments. The outer layer (layer 3) of the sleeve has a degree of elasticity, a soft and comfortable feel, and a high-end appearance. The 3D logo on the cup body is a different color than the cup body itself, and the handle and cup body are integrated into a single structure. It provides excellent insulation, is neither heat-conducting nor cold-conducting, and the 3D logo on the cup body is prominently raised, highlighting the brand's premium image.

[0044] like Figure 13 As shown, the manufacturing process of the three-shot weldless insulated car thermos cup sleeve in this example includes the following steps:

[0045] S1. Design and manufacture a three-stage segmented injection molding mold in advance based on the shape and size of the inner layer 1, handle frame 2, and outer layer 3 of the three-shot weldless vehicle-mounted hot and cold insulated cup sleeve.

[0046] S2. Then, the material formulas of the inner layer 1 of the cup sleeve, the handle frame 2 of the cup sleeve and the outer layer 3 of the cup sleeve were tested respectively, and it was determined that the material of the handle frame 2 of the cup sleeve is ABS+GF%15, the material of the inner layer 1 of the cup sleeve is TUP100, and the material of the outer layer 3 of the cup sleeve is TUP90.

[0047] S3. In the preparation process, a three-shot injection molding machine is first used to inject the cup sleeve handle skeleton 2 with ABS+GF%15 as raw material.

[0048] S4. Next, a three-shot injection molding machine is used to inject TUP100 as raw material for the second injection of the inner layer 1 of the cup sleeve.

[0049] S5. Then, according to the color of the outer layer of the cup sleeve, TUP90 is matched with color, and the outer layer of the cup sleeve is injected for the third time using a three-shot injection molding machine with the matched TUP90 as raw material.

[0050] S6. Finally, demold and cool, remove burrs and scraps, and inspect to obtain the final product.

[0051] The three-segment injection molding mold made in the first step is designed with a three-dimensional trademark molding unit, and after injection molding, the three-dimensional trademark graphic 8 can be exposed at the same position on the inner layer 1 and the outer layer 3 of the cup sleeve.

[0052] This three-shot, weld-free insulated car thermos cup sleeve utilizes advanced three-shot injection molding technology. Through innovative design of the three-shot injection mold, and with the design of three-shot injection molding process parameters and experimental raw material formulas for each shot, the multi-layered structure is formed in a single process, eliminating unnecessary and complex steps. This allows for the production of a multi-layered injection-molded cup sleeve with enhanced insulation. Its handle and body are sturdy and durable, suitable for various outdoor applications. The outer layer of the sleeve has a certain degree of elasticity, a soft and comfortable feel, and a high-end appearance. The logo is three-dimensionally raised, with a different color from the cup body, and the handle and body are integrated. It provides significant insulation assistance, is neither a conductor of heat nor cold, and the appearance color can be adjusted at will. The logo pattern on the cup body has a distinct three-dimensional raised effect, highlighting the brand's quality. Thus, it achieves the goals of reasonable design, simple structure, and excellent performance.

[0053] The above description is merely a preferred embodiment of the three-shot weldless vehicle-mounted hot and cold insulated cup sleeve and its manufacturing process according to the present invention. It should be noted that for those skilled in the art, several modifications and improvements can be made without departing from the inventive concept of the present invention, and these all fall within the protection scope of the present invention.

Claims

1. A three-ejection, weld-free vehicle-mounted thermos cup sleeve, characterized in that, It consists of an inner cup sleeve, a cup sleeve handle frame, and an outer cup sleeve. The cup sleeve handle frame includes a ring frame and a U-shaped handle, with the upper inner side of the U-shaped handle fixedly connected to the outer side of the ring frame. The outer cup sleeve includes an outer cup sleeve body and a U-shaped handle sleeve, with the upper inner end of the U-shaped handle sleeve connected to the top outer edge of the outer cup sleeve body, and a notch left between the lower inner end of the U-shaped handle sleeve and the outer wall of the outer cup sleeve body. The inner layer of the cup sleeve is located at the innermost layer of the three-shot weldless vehicle-mounted hot and cold insulated cup sleeve. The annular skeleton is sleeved on the top periphery of the inner layer of the cup sleeve. The outer layer of the cup sleeve is injection molded and covers the outer surface of the inner layer of the cup sleeve, and the U-shaped handle covers the outer surface of the U-shaped handle, and the annular skeleton is sealed between the outer layer of the cup sleeve and the inner layer of the cup sleeve.

2. The three-ejection weldless vehicle-mounted thermos cup sleeve according to claim 1, characterized in that, The U-shaped handle has a grid-like heat dissipation groove at the front of the middle section, and diversion grooves on both sides extending from the middle section to the lower end. A guide groove is provided on the inner side of the annular frame near the U-shaped handle.

3. The three-ejection weldless vehicle-mounted thermos cup sleeve according to claim 2, characterized in that, The top of the outer layer of the cup sleeve is higher than the top of the inner layer of the cup sleeve, and during the injection molding of the outer layer of the cup sleeve, the top of the outer layer of the cup sleeve covers the top of the inner layer of the cup sleeve from above.

4. A manufacturing process for a three-shot weld-free vehicle-mounted thermos cup sleeve, characterized in that, Includes the following steps: The first step is to design and manufacture a three-stage injection molding mold based on the shape and size of the inner layer of the cup sleeve, the handle frame of the cup sleeve, and the outer layer of the cup sleeve for the three-shot weldless vehicle-mounted hot and cold insulated cup sleeve. The second step is to test the material formulas of the inner layer of the cup sleeve, the cup sleeve handle frame, and the outer layer of the cup sleeve separately, and determine that the material of the cup sleeve handle frame is ABS+GF%15, the material of the inner layer of the cup sleeve is TUP100, and the material of the outer layer of the cup sleeve is TUP90. The third step is to use a three-shot injection molding machine with ABS+GF%15 as the raw material to inject the cup sleeve handle skeleton for the first time. Step 4: Using a three-shot injection molding machine with TUP100 as the raw material, inject the inner layer of the cup sleeve for the second time; Step 5: Match the color of TUP90 according to the color of the outer layer of the cup sleeve, and use a three-shot injection molding machine to inject the outer layer of the cup sleeve for the third time using the matched TUP90 as raw material. Step 6: Demolding and cooling, removing burrs and scraps, and inspecting to obtain the final product.

5. The manufacturing process of a three-shot weldless vehicle-mounted hot and cold insulation cup sleeve according to claim 4, characterized in that, The three-segment injection molding mold made in the first step is designed with a three-dimensional trademark molding unit, and the three-dimensional trademark graphic can be exposed at the same position on the inner layer and outer layer of the cup sleeve after injection molding.

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