Novel glue feeding structure of split machine panel body

Abstract

A novel glue feeding structure of a split type machine panel body comprises a temperature sensing thermocouple and a cold runner system, the cold runner system is connected with a hot nozzle, the hot nozzle is connected with an air cylinder system and a splitter plate, the cold runner system comprises a cold runner and a glue inlet, the cold runner is connected with a hot runner and a cavity, the hot runner is connected with the split type machine panel body, and the glue inlet is connected with the split type machine panel body. The splitter plate is connected with a heating coil; according to the utility model, the multi-sprue needle valve is adopted for sequential glue feeding, so that seamless injection is realized. In order to reduce excessive residual stress and material yellowing caused by excessive shearing of the material at the pouring gate of the appearance part, solve appearance defects and improve the appearance quality, the glue feeding mode of converting a hot runner into a cold runner is adopted, and the glue feeding structure further has the advantages of being simple in structure and easy to machine and facilitates reduction of the production cost. According to the glue feeding process system, an advanced control system is adopted, the glue feeding process can be monitored in real time, the glue feeding stability and reliability are ensured, the production efficiency is improved, and the influence of human factors on the product quality is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of glue injection, in particular to a novel glue injection structure for a split machine panel. Background Art

[0002] With the increasing variety of home appliances and the improvement of consumers' aesthetic taste, the exquisite appearance of home appliances has become an important demand. Taking split air conditioners as an example, people not only have requirements for air conditioning refrigeration performance, but also gradually increase their requirements for the appearance of parts, especially the air outlet side, which is installed on the wall and is located directly above people's sight, and has the highest requirements for appearance.

[0003] In order to improve production efficiency and reduce production costs, the traditional panel body mold opening and gluing adopts hot runner gluing, which does not have sprue materials and can be produced automatically. However, the air outlet side and the left and right sides are the appearance positions of the panel body, and consumers often complain about appearance defects such as "yellowing appearance and partial yellow lines" after sales. After analysis, the location of appearance defects all appears near the gate. The material is sheared near the hot runner gate, and the material has been partially degraded. With the continuous oxidation in the environment, it gradually turns yellow, causing consumer complaints. Utility Model Content

[0004] In order to overcome the above-mentioned shortcomings of the prior art, the purpose of the utility model is to provide a new type of glue injection structure for a split machine panel body, and proposes a new type of "hot runner + cold runner" combined glue injection structure for a split machine panel body, and a matching mold structure, which significantly improves the appearance quality of parts, while saving production costs as much as possible, and solves the problem of appearance defects such as yellowing of the panel body after sale.

[0005] The technical solution adopted by the utility model to solve its technical problems is: a new glue inlet structure of a split machine panel body, including a temperature-sensing thermocouple and a cold runner system, the cold runner system is connected to a hot nozzle, the hot nozzle is connected to a cylinder system and a manifold, the cold runner system includes a cold runner and a glue inlet, the cold runner connects a hot runner and a cavity, the hot runner is connected to a split machine panel body, and the manifold is connected to a heating coil.

[0006] As a further improvement of the present invention: the hot nozzle adopts a needle valve hot nozzle, and the diameter of the needle valve hot nozzle is 3.0-4.0MM.

[0007] As a further improvement of the utility model: the cold runner includes a first cold runner and a second cold runner, the first cold runner is vertically connected to the second cold runner, and the part of the first cold runner extending to the lower end of the second cold runner is a cold well, the cold well is perpendicular to the second cold runner, and the second cold runner is connected to the glue inlet.

[0008] As a further improvement of the present invention: the first cold runner is connected to the hot runner, and the second cold runner is connected to the cold well.

[0009] As a further improvement of the present invention: the diameter of the upper end of the first cold runner is 4.5-5.0MM, the diameter of the end of the cold well is 8-10MM, and the length of the first cold runner is 80-150MM.

[0010] As a further improvement of the present invention: the cold runner adopts a conical shape, the second cold runner adopts a trapezoidal structure, the large end width of the second cold runner is 8 to 10 MM, the small end width of the second cold runner is 6 to 8 MM, and the height of the second cold runner is 6 to 8 MM.

[0011] As a further improvement of the present invention: the cross-section of the glue inlet is a rectangular shape, the length of the glue inlet is 8 to 10 MM, and the thickness of the glue inlet is 0.6 to 0.8 MM.

[0012] As a further improvement of the present invention: the cold runner system is connected to the split machine panel body, and the split machine panel body is provided with a side air outlet.

[0013] As a further improvement of the utility model: the hot nozzle passes through the manifold plate and is connected to the cylinder system, and the side of the manifold plate is connected to a temperature-sensing thermocouple.

[0014] As a further improvement of the utility model: the center of the diverter plate is connected to the main nozzle of the main channel.

[0015] As a further improvement of the utility model: the cold runner guides the melt into the mold cavity through the glue port.

[0016] As a further improvement of the utility model: the cold material well is perpendicular to the second cold runner and is used to hide the cold material to prevent the generation of cold material lines on the appearance surface during the injection molding process.

[0017] As a further improvement of the utility model: the main nozzle of the main runner is located at the center of the length direction of the air outlet to ensure the balance of glue feeding on the left and right sides, and the cold runner connects the hot runner and the cavity.

[0018] As a further improvement of the utility model: the length of the diverter plate is 600-1500MM, and the width is 250-450MM.

[0019] Compared with the prior art, the beneficial effects of the utility model are:

[0020] The utility model adopts multi-gate needle valve timing injection to achieve seamless injection. In order to reduce the problem of excessive shearing of the material at the gate of the appearance part, resulting in excessive residual stress and yellowing of the material, solve the appearance defects and improve the appearance quality, the injection structure also has the characteristics of simple structure and easy processing, which is conducive to reducing production costs. In addition, the injection process system adopts an advanced control system, which can monitor the injection process in real time to ensure the stability and reliability of the injection, which not only improves production efficiency, but also reduces the impact of human factors on product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the prior art;

[0022] Figure 2 It is a schematic diagram of the structure of the utility model;

[0023] Figure 3 The structure of the utility model is shown in FIG. Figure 2 ;

[0024] Figure 4 For this utility model Figure 3 A partial enlarged view of

[0025] Figure 5 For this utility model Figure 4 The upward structural diagram of

[0026] In the figure: 1. Main nozzle of the main flow channel; 2. Diverter plate; 3. Heating coil; 4. Temperature-sensing thermocouple; 5. Hot nozzle; 6. Cylinder system; 7. Cold runner system; 8. Glue inlet; 9. Split machine panel; 10. First cold runner; 11. Second cold runner; 12. Cold material well. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be clearly and completely described below in combination with the specific embodiments of the utility model and the corresponding drawings. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of 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.

[0028] It should be noted that the terms "including" and "having" and any variations thereof in the specification and claims of the present invention and the above-mentioned drawings are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0029] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0030] The utility model is further described in conjunction with the accompanying drawings and embodiments: Figure 1-5 A new glue inlet structure of a split machine panel body is shown, including a temperature-sensing thermocouple 4 and a cold runner system 7, the cold runner system 7 is connected to a hot nozzle 5, the hot nozzle 5 is connected to a cylinder system 6 and a manifold 2, the cold runner system 7 includes a cold runner and a glue inlet 8, the cold runner connects the hot runner and the cavity, the hot runner is connected to a split machine panel body 9, and the manifold 2 is connected to a heating coil 3.

[0031] As a preferred embodiment, the hot nozzle 5 adopts a needle valve hot nozzle, and the diameter of the needle valve hot nozzle is 3.0-4.0MM.

[0032] As a preferred embodiment, the cold runner includes a first cold runner 10 and a second cold runner 11, the first cold runner 10 is vertically connected to the second cold runner 11, and the part of the first cold runner 10 extending to the lower end of the second cold runner 11 is a cold well 12, the cold well 12 is perpendicular to the second cold runner 11, and the second cold runner 11 is connected to the glue inlet 8.

[0033] As a preferred embodiment, the first cold runner 10 is connected to the hot runner, and the second cold runner 11 is connected to the cold well 12 .

[0034] As a preferred embodiment, the diameter of the upper end of the first cold runner 10 is 4.5-5.0 MM, the diameter of the end of the cold well 12 is 8-10 MM, and the length of the first cold runner 10 is 80-150 MM.

[0035] As a preferred embodiment, the cold runner adopts a conical shape, the second cold runner 11 adopts a trapezoidal structure, the large end width of the second cold runner 11 is 8-10MM, the small end width of the second cold runner 11 is 6-8MM, and the height of the second cold runner 11 is 6-8MM.

[0036] As a preferred embodiment, the cross-section of the glue inlet 8 is a rectangular shape, the length of the glue inlet 8 is 8 to 10 MM, and the thickness of the glue inlet 8 is 0.6 to 0.8 MM.

[0037] As a preferred embodiment, the cold runner system 7 is connected to a split machine panel body 9, and the split machine panel body 9 is provided with a side air outlet.

[0038] As a preferred embodiment, the hot nozzle 5 passes through the manifold plate 2 and is connected to the cylinder system 6 , and the side of the manifold plate 2 is connected to a temperature-sensing thermocouple 4 .

[0039] As a preferred embodiment, the center of the diverter plate 2 is connected to the main nozzle 1 of the main channel.

[0040] As a preferred implementation, the glue feeding structure adopts a multi-path glue feeding method, which can achieve uniform glue feeding and effectively avoid the generation of bubbles.

[0041] As a preferred embodiment, the injection structure uses high-strength alloy materials, which not only have better wear resistance but also can withstand higher operating temperatures and pressures.

[0042] As a preferred embodiment, the flow rate and direction of the glue are precisely controlled to ensure that each split machine panel body 9 can be evenly and fully coated with glue. This not only improves the appearance quality of the product, but also enhances the overall performance of the product.

[0043] As a preferred embodiment, through this glue feeding structure, the part of the material decomposed by shearing at the hot nozzle position at the end of each injection molding is hidden in the cold runner, which effectively solves the yellow streak defect in appearance.

[0044] The working principle of this utility model:

[0045] The split machine panel of the utility model adopts multi-gate needle valve timing injection to achieve seamless injection. In order to reduce the excessive shearing of the material at the gate of the appearance part, resulting in excessive residual stress and yellowing of the material, the appearance area such as the air outlet and the side adopts the injection method of "hot runner to cold runner", which reduces the height of the hot runner and reduces the thermal residence time of the material. At the same time, the over-sheared material is left on the water outlet, further avoiding the decomposed material from being filled into the product, solving the appearance defects. The flow channel structure transformation has certain requirements, and the other non-appearance parts use needle valve hot runners to directly inject glue to improve production efficiency.

[0046] Implementation case 1:

[0047] like Figure 1-5 A new glue inlet structure of a split machine panel body is shown, including a temperature-sensing thermocouple 4 and a cold runner system 7, the cold runner system 7 is connected to a hot nozzle 5, the hot nozzle 5 is connected to a cylinder system 6 and a manifold 2, the cold runner system 7 includes a cold runner and a glue inlet 8, the cold runner connects the hot runner and the cavity, the hot runner is connected to a split machine panel body 9, and the manifold 2 is connected to a heating coil 3.

[0048] The hot nozzle 5 adopts a needle valve hot nozzle, and the diameter of the needle valve hot nozzle is 3.0-4.0MM. The cold runner includes a first cold runner 10 and a second cold runner 11. The first cold runner 10 is vertically connected to the second cold runner 11, and the part of the first cold runner 10 extending to the lower end of the second cold runner 11 is a cold well 12, and the cold well 12 is perpendicular to the second cold runner 11. The second cold runner 11 is connected to the glue inlet 8, the first cold runner 10 is connected to the hot runner, and the second cold runner 11 is connected to the cold well 12. The upper end diameter of the first cold runner 10 is 4.5-5.0MM, the end diameter of the cold well 12 is 8-10MM, and the length of the first cold runner 10 is 80-1 50MM, the cold runner adopts a conical shape, the second cold runner 11 adopts a trapezoidal structure, the large end width of the second cold runner 11 is 8-10MM, the small end width of the second cold runner 11 is 6-8MM, the height of the second cold runner 11 is 6-8MM, the cross-section of the glue inlet 8 is rectangular, the length of the glue inlet 8 is 8-10MM, the thickness of the glue inlet 8 is 0.6-0.8MM, the cold runner system 7 is connected to the split machine panel body 9, the split machine panel body 9 is provided with a side air outlet, the hot nozzle 5 penetrates the diverter plate 2 and is connected to the cylinder system 6, the side of the diverter plate 2 is connected to the temperature sensing thermocouple 4, and the center of the diverter plate 2 is connected to the main nozzle 1 of the main channel.

[0049] The split machine panel body 9 is 600-1500mm long, 250-450mm wide, the wall thickness of the part body is no more than 3mm, and the appearance color is mainly white. Figure 1 As shown, the hot runner is directly on the surface of the appearance position, with a high degree of automation, but it is often sheared and decomposed due to material decomposition, and the decomposed material is left on the surface of the product after injection molding, resulting in yellow stripe complaints after sales. In order to solve the above problems, a new glue injection system is developed. The glue injection structure of the utility model includes a main nozzle of the main runner 1, a diverter plate 2, a heating coil 3, a temperature-sensing thermocouple 4, a hot nozzle 5, a cylinder system 6, and a cold runner system 7.

[0050] The panel of the split machine is divided into an appearance area and a non-appearance area. For the non-appearance area, a needle valve hot nozzle is used to directly point the glue on the product surface, without worrying about appearance defects. The diameter of all hot nozzles 5 is 3.0-4.0mm.

[0051] For the appearance area, a combined injection mode of "hot runner + cold runner" is adopted. At the air outlet, the first hot runner is located at the center of the length direction of the air outlet to ensure the balance of injection on the left and right sides. The cold runner connects the hot runner and the cavity. The cold runner is divided into four areas, namely the first cold runner 10, the second cold runner 11, the cold material well 12 and the injection port 8. The first cold runner 10 is perpendicular to the second cold runner 11, one end of which is connected to the hot runner, and the diameter of the cold runner end is 4.5-5.0mm; the other end is connected to the second cold runner 11 and the cold runner well 12, the diameter of the runner end is 8-10mm, and the length of the cold runner 1 is 80-150mm, which can be adjusted according to the specific product structure; since the first cold runner 10 is relatively long, cold material is easily generated during the injection molding process, and the part that extends in the direction of the first cold runner 10 beyond the second cold runner 11 is defined as the cold runner well 12, and the cold runner is generally conical to facilitate demolding. The cold runner well is perpendicular to the second cold runner 11 and is used to hide the cold material to prevent the generation of cold material lines on the appearance surface during the injection molding process; the second cold runner 11 is a trapezoidal structure, the width of the large end of the runner is 8-10mm, the width of the small end is 6-8mm, and the height of the runner is 6-8mm, which guides the melt into the mold cavity through the gate; the cold gate connects the cold runner 2 and the mold cavity. The cross section of the cold glue nozzle is generally rectangular, the length of the glue nozzle is 8 to 10 mm, and the thickness of the glue nozzle is 0.6 to 0.8 times the thickness of the main material. Through this glue feeding structure, the part of the material that is sheared at the hot nozzle position at the end of each injection and causes decomposition is hidden in the cold runner, effectively solving the yellow streak defect on the appearance.

[0052] When injection molding begins, the main hot gate in the middle of the air outlet side is opened first. When the molten glue passes through the second and third cold glue gates, the second and third hot runners are opened and glue is fed sequentially. The glue feeding of other non-appearance areas is adjusted according to the time when the molten glue reaches the appearance side of the air outlet to ensure that there is no weld line on the appearance surface of the air outlet side, further improving the appearance of the product.

[0053] Implementation case 2:

[0054] In this embodiment, Figure 1-5 The new glue feeding structure of a split machine panel shown in the figure has the same technical means as the glue feeding structure of implementation case 1.

[0055] The new glue feeding structure and glue feeding process system have achieved remarkable results in the production of split machine panel bodies. Compared with the traditional glue feeding method, the production efficiency has been increased by more than 30%, and the product quality has also been significantly improved. At the same time, since the uniformity and stability of glue feeding are guaranteed, the appearance quality of the product has also been improved. The glue feeding process system also adopts an advanced control system, and also adopts an advanced control system for real-time monitoring and management. By collecting data for analysis and processing, problems that may arise in the glue feeding process can be discovered and solved in a timely manner to ensure the smooth progress of production and high-quality output of products. In addition, the system can also be adjusted and optimized according to actual production needs to adapt to the requirements of different types of products and production processes, further improving the flexibility and adaptability of production, and can monitor the glue feeding process in real time to ensure the stability and reliability of glue feeding. This intelligent control method not only improves production efficiency, but also reduces the impact of human factors on product quality. The integration of green environmental protection concepts actively responds to the call of the country and society to actively promote green production and sustainable development strategies.

[0056] The main functions of this utility model:

[0057] The split machine panel of the utility model adopts multi-gate needle valve timing injection to achieve seamless injection. In order to reduce the excessive shearing of the material at the gate of the appearance part, resulting in excessive residual stress and yellowing of the material, the appearance area such as the air outlet and the side adopts the injection method of "hot runner to cold runner", which reduces the height of the hot runner and reduces the thermal residence time of the material. At the same time, the over-sheared material is left on the water outlet, further avoiding the decomposed material from being filled into the product, solving the appearance defects. The flow channel structure transformation has certain requirements, and the other non-appearance parts use needle valve hot runners to directly inject glue to improve production efficiency.

[0058] In summary, after reading the utility model document, ordinary technicians in this field can make various other corresponding transformation schemes based on the technical scheme and technical concept of the utility model without creative mental labor, which all fall within the scope of protection of the utility model.

[0059] In the description of the present utility model, it needs to be understood that the orientations or positional relationships indicated by terms such as "upper end face", "lower end face", "top", "bottom", "left" and "right" are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present utility model. Therefore, they cannot be understood as limitations on the actual use direction of the present utility model.

[0060] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some or all of the technical features thereof may be replaced by equivalents. Such modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention, and should all be included in the scope of the claims and specification of the present invention.

Claims

1. A new glue feeding structure for a split panel, characterized in that: It includes a temperature-sensing thermocouple and a cold runner system, the cold runner system is connected to a hot nozzle, the hot nozzle is connected to a cylinder system and a manifold, the cold runner system includes a cold runner and a glue inlet, the cold runner is connected to a hot runner and a cavity, the hot runner is connected to a split machine panel, and the manifold is connected to a heating coil.

2. According to claim 1, a novel glue feeding structure for a split machine panel body is characterized in that: The hot nozzle adopts a needle valve hot nozzle, and the diameter of the needle valve hot nozzle is 3.0-4.0MM.

3. According to claim 1, a novel glue feeding structure for a split machine panel body is characterized in that: The cold runner includes a first cold runner and a second cold runner, the first cold runner is vertically connected to the second cold runner, and the portion of the first cold runner extending to the lower end of the second cold runner is a cold well, the cold well is perpendicular to the second cold runner, and the second cold runner is connected to the glue inlet.

4. The novel glue feeding structure of the split machine panel body according to claim 3 is characterized in that: The first cold runner is connected to the hot runner, and the second cold runner is connected to the cold well.

5. The novel glue feeding structure of the split machine panel body according to claim 3 is characterized in that: The diameter of the upper end of the first cold runner is 4.5-5.0 MM, the diameter of the end of the cold well is 8-10 MM, and the length of the first cold runner is 80-150 MM.

6. The novel glue feeding structure of the split machine panel body according to claim 3 is characterized in that: The cold runner adopts a conical shape, the second cold runner adopts a trapezoidal structure, the width of the large end of the second cold runner is 8-10MM, the width of the small end of the second cold runner is 6-8MM, and the height of the second cold runner is 6-8MM.

7. The novel glue feeding structure of the split machine panel body according to claim 3 is characterized in that: The cross section of the glue inlet is a rectangular shape, the length of the glue inlet is 8 to 10 MM, and the thickness of the glue inlet is 0.6 to 0.8 MM.

8. The novel glue feeding structure of the split machine panel body according to claim 1 is characterized in that: The cold runner system is connected to the split machine panel body, and the split machine panel body is provided with a side air outlet.

9. The novel glue feeding structure of the split machine panel body according to claim 1 is characterized in that: The hot nozzle passes through the manifold plate and is connected to the cylinder system, and the side surface of the manifold plate is connected to a temperature-sensing thermocouple.

10. A novel glue feeding structure for a split machine panel according to claim 9, characterized in that: The center of the diverter plate is connected to the main nozzle of the main flow channel.

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