Decorative strip extrusion blank shaping device
By using negative pressure channels and suction structures in the trim extrusion blank setting device to remove coolant and impurities, the water marking and molding quality problems are solved, and a higher quality molding effect is achieved.
Patent Information
- Application Number
- CN202420804953.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-17
- Publication Date
- 2024-12-17
- Estimated Expiration
- 2034-04-17
AI Technical Summary
Existing trim products are prone to water marks and watermarks when the cooling water comes into contact with the blank, which affects the appearance quality of the product, and it is difficult to remove impurities in the cooling water, resulting in poor molding quality.
An extrusion blank shaping device including a pretreatment piece, a shaping die and a cooler is designed to remove coolant and impurities from the surface of the extrusion blank using a negative pressure channel and a suction structure, and realize the cooling liquid and impurities through the cooling liquid injection and the immersion of the shaping die. Surface cooling and shaping improves molding quality.
Effectively remove water marks and impurities, improve the molding quality of the product, ensure the smoothness and gloss of the product surface, and avoid scratches caused by scratches between impurities and blank surfaces.
Smart Images
Figure CN222178641U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of trim strip forming equipment, and in particular to a trim strip extrusion blank shaping device. Background Art
[0002] The production process of decorative strip products is to heat and plasticize the rubber material before extrusion. The temperature of the extruded blank is high and the material is soft. The cross-section of the product is adjusted and shaped by a cooling mold. The cooling and shaping mold is positioned and locked in a cooling water tank. The extruded blank enters the shaping mold and comes into contact with the cooling water and is cooled and shaped. If the product has appearance requirements, the cooling water cannot effectively control the cooling water lines and watermarks caused by contact with the blank, and the product appearance does not meet the quality and color requirements. Utility Model Content
[0003] The present application aims to solve at least one of the above-mentioned technical problems in the prior art to a certain extent. To this end, the present application provides a molding device for molding a trim extrusion blank, which can solve the problem of poor water mark of cooling water, remove impurities caused by pre-cooling water, and improve the molding quality of the product.
[0004] According to the molding extrusion blank shaping device described in the embodiment of the present application, it includes a first pretreatment piece, a shaping die and a cooler, wherein a portion of the shaping die is immersed in the coolant in the cooler, the first pretreatment piece is arranged close to the entry end of the shaping die, and a second pretreatment piece for cooling liquid injection is arranged between the first pretreatment piece and the shaping die, wherein the shaping die is provided with a suction structure and a shaping groove for shaping, and the suction structure can remove the surface coolant or impurities of the extruded blank entering the shaping groove under the action of negative pressure.
[0005] According to the molding extrusion blank shaping device described in the embodiment of the present application, the shaping mold includes a first shaping piece and a second shaping piece that are detachably connected, and the second shaping piece is covered on the first shaping piece to form the shaping groove, and the suction structure is arranged on the second shaping piece, and the suction structure includes at least one negative pressure channel connected to the shaping groove.
[0006] According to the molding extrusion blank shaping device described in the embodiment of the present application, a suction port is provided at the end of the negative pressure channel adjacent to the shaping groove, and the suction port extends along the width direction of the shaping groove.
[0007] According to the molding extrusion blank shaping device described in the embodiment of the present application, the length of the suction port is less than two-thirds of the width of the shaping groove, and the width of the suction port is 1.2 to 1.5 mm.
[0008] According to the molding extrusion blank shaping device described in the embodiment of the present application, a buffer cavity is provided between the two ends of the negative pressure channel, and the cross-sectional area of the buffer cavity is larger than the cross-sectional area of the adsorption port.
[0009] According to the molding extrusion blank shaping device described in the embodiment of the present application, a core is provided on one side of the second shaping piece that is in contact with the first shaping piece, the suction port is provided on the core, and one side of the core cooperates with the profiling groove on the first shaping piece to form the shaping groove.
[0010] According to the molding extrusion blank shaping device described in the embodiment of the present application, the second shaping piece is provided with the buffer cavity, and after the core is embedded in the second shaping piece, the suction port is aligned with one end of the buffer cavity.
[0011] According to the molding extrusion blank shaping device described in the embodiment of the present application, a removable cover plate is provided on the side of the second shaping member away from the first shaping member, the cover plate covers the buffer cavity, and the entrance end of the negative pressure channel is provided on the cover plate and aligned with the other end of the buffer cavity.
[0012] According to the molding extrusion blank shaping device described in the embodiment of the present application, two negative pressure channels are provided, the suction port of one negative pressure channel is close to the entrance end of the shaping groove, and the suction port of the other negative pressure channel is close to the outlet end of the shaping groove.
[0013] According to the molding extrusion blank shaping device described in the embodiment of the present application, the first pretreatment member and the first shaping member are both made of copper, and the second shaping member is made of stainless steel.
[0014] The above-mentioned molding extrusion blank shaping device has at least the following beneficial effects: the extruded blank extruded by the extruder is first subjected to preliminary cooling by the first pretreatment member, so as to realize short-distance pre-cooling treatment of the extruded blank, and at the same time, the first pretreatment member also serves to guide the extruded blank to the shaping die; after the pre-cooling treatment, as the extruded blank is continuously extruded, the extruded blank between the shaping die and the first pretreatment member is surface-cooled by the coolant sprayed by the second pretreatment member, so as to reduce the situation that the extruded blank is too soft to smoothly enter the shaping groove; then, the extruded blank entering the shaping groove is subjected to surface adsorption shaping of the extruded blank by the shaping die immersed in the cooler in cooperation with the suction structure, and at the same time, the suction structure can also, under the action of negative pressure, suck away the coolant on the surface of the extruded blank and the impurities remaining after the coolant is drained, so as to effectively solve the problem of water marks caused by the coolant, and at the same time, it can also suck away impurities to avoid the situation that the impurities rub against the surface of the extruded blank and cause scratches, so as to greatly improve the surface molding quality of the molded extruded blank. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] The present application is further described below with reference to the accompanying drawings and embodiments;
[0016] Figure 1 It is a schematic diagram of the connection between the molding extrusion blank shaping device and the extruder in the embodiment of the present application;
[0017] Figure 2 This is a schematic diagram of the structure of the shaping mold in the embodiment of the present application. Figure 1 ;
[0018] Figure 3 This is a schematic diagram of the structure of the shaping mold in the embodiment of the present application. Figure 2 ;
[0019] Figure 4 This is a schematic diagram of the structure of the shaping mold in the embodiment of the present application. Figure 3 ;
[0020] Figure 5 This is a schematic diagram of the structure of the second shaping member in the embodiment of the present application. Figure 1 ;
[0021] Figure 6 This is a schematic diagram of the structure of the second shaping member in the embodiment of the present application. Figure 2 ;
[0022] Figure 7 In the embodiment of the present application, the structure of the core is schematically shown Figure 1 ;
[0023] Figure 8 In the embodiment of the present application, the structure of the core is shown in FIG. Figure 2 ;
[0024] Fig. 9 In the embodiment of the present application, the structure of the cover plate is schematically shown as follows: Figure 1 ;
[0025] Fig.10 In the embodiment of the present application, the structure of the cover plate is schematically shown as follows: Figure 2 ;
[0026] Fig.11 It is a schematic diagram of the structure of the pre-treatment component in an embodiment of the present application. DETAILED DESCRIPTION
[0027] This section will describe in detail the specific embodiments of the present application. The preferred embodiments of the present application are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present application, but it cannot be understood as a limitation on the scope of protection of the present application.
[0028] In the description of the present application, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.
[0029] In the description of this application, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed", etc. are understood to exclude the number itself, and "above", "below", "within", etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.
[0030] In the description of this application, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in this application based on the specific content of the technical solution.
[0031] Reference Figure 1 The molding extrusion blank shaping device of the present application is arranged at the extrusion end of the extruder 100, and the extrusion blank produced by the extruder 100 can be quickly connected to the molding extrusion blank shaping device for cooling and shaping.
[0032] Specifically, Figure 2 and Figure 4 As shown, the molding extrusion blank shaping device of the present application includes a first pretreatment component 200, a shaping die 300 and a cooler 400. A portion of the shaping die 300 is immersed in the coolant in the cooler 400. The shaping die 300 is continuously cooled by the coolant, so that the shaping die 300 can maintain a relatively low temperature, which is convenient for continuous shaping of the extruded blank and improves the molding effect.
[0033] The first pretreatment component 200 is arranged near the entrance end of the shaping mold 300, and a second pretreatment component for cooling liquid injection is arranged between the first pretreatment component 200 and the shaping mold 300. The second pretreatment component is connected to a pump to continuously transport cooling liquid. At the same time, the second pretreatment component can be a pipe fitting, and a nozzle can be arranged at the outlet end of the pipe fitting.
[0034] The shaping die 300 is provided with a suction structure and a shaping groove 311 for shaping. The suction structure can remove the surface coolant or impurities of the extruded blank entering the shaping groove 311 under the action of negative pressure.
[0035] When in use, the extruded billet extruded by the extruder 100 first passes through the first pretreatment component 200 for preliminary cooling, thereby achieving short-distance pre-cooling treatment of the extruded billet. At the same time, the first pretreatment component 200 also serves to guide the extruded billet to the shaping groove 311 of the shaping die 300.
[0036] After the pre-cooling treatment by the first pre-treatment part 200, as the extruded billet is continuously extruded, the surface of the extruded billet between the shaping die 300 and the first pre-treatment part 200 is cooled by the coolant sprayed by the second pre-treatment part, thereby reducing the situation where the extruded billet is too soft due to excessive temperature and cannot smoothly enter the shaping groove 311.
[0037] Then, the extruded blank entering the shaping groove 311 is subjected to surface adsorption shaping of the extruded blank in the shaping die 300 immersed in the cooler 400 in cooperation with the suction structure. Since the shaping die 300 is immersed in the coolant in the cooler 400, the shaping die 300 is continuously cooled by the coolant, so that the shaping die 300 can maintain a relatively low temperature, which is convenient for continuous shaping of the extruded blank and improving the molding effect. At the same time, the suction structure can also suck away the coolant on the surface of the extruded blank and the impurities remaining after the coolant is drained under the action of negative pressure, effectively solving the problem of water marks caused by the coolant. At the same time, impurities can also be sucked away to avoid scratches caused by impurities rubbing against the surface of the extruded blank, which can greatly improve the surface molding quality of the molded extruded blank. In the embodiment of the present application, water is selected as the coolant.
[0038] In some embodiments, the pre-treatment member 200 may be provided in one piece or in multiple pieces, and the length of the pre-treatment member 200 may be 50 mm. When there are multiple pre-treatment members 200, they are arranged at intervals. In order to improve the heat conduction and cooling effect, the first pre-treatment member 200 is made of copper, such as Fig.11 As shown, the first pre-processing member 200 is further provided with a guide groove 210 for positioning. The shape of the guide groove 210 is similar to the shape of the extruded billet, and plays a role in guiding and preliminary shaping.
[0039] In some embodiments, the shaping mold 300 includes a first shaping member 310 and a second shaping member 330 that are detachably connected. The second shaping member 330 is covered on the first shaping member 310 to form a shaping groove 311. The suction structure is arranged on the second shaping member 330, and the suction structure includes at least one negative pressure channel connected to the shaping groove 311. Specifically, the first shaping member 310 and the second shaping member 330 are detachably connected by bolt connection, which is convenient for repairing or replacing damaged parts. In order to facilitate the rapid positioning and docking of the second shaping member 330 and the first shaping member 310, a positioning slot 333 is provided on one side of the second shaping member 330 that is attached to the first shaping member 310, and a positioning convex strip (not shown in the figure) is provided at the corresponding position of the first shaping member 310.
[0040] After the extruded billet enters the shaping groove 311, the lower half can be automatically pressed against the shaping groove 311 to achieve cooling and shaping under the action of gravity, but the upper half is not easy to fit with the shaping groove 311. The setting of the negative pressure channel can well solve the problem of poor shaping effect of the upper extruded billet. By making the negative pressure channel generate negative pressure, the coolant on the surface of the extruded billet and the impurities remaining after the coolant is drained can be sucked away under the action of negative pressure, and the upper surface of the extruded billet can be fit with the shaping groove 311 for cooling and shaping, and the shaping effect is further improved.
[0041] Furthermore, an adsorption port 323 is provided at the end of the negative pressure channel bordering the shaping groove 311, and the adsorption port 323 extends along the width direction of the shaping groove 311. Among them, the length of the adsorption port 323 is less than two-thirds of the width of the shaping groove 311, and the width of the adsorption port 323 is 1.2-1.5 mm. It should be noted that when the adsorption port 323 is small, the adsorption effect is insufficient, and impurities will not be absorbed, resulting in a high risk of scratches on the product. When the adsorption port 323 is large, there is a risk of vibration marks on the surface of the product. It is better to set the width of the adsorption port 323 to 1.2-1.5 mm.
[0042] Furthermore, a buffer cavity 334 is provided between the two ends of the negative pressure channel, and the cross-sectional area of the buffer cavity 334 is larger than the cross-sectional area of the adsorption port 323, and the cross-sectional area of the buffer cavity 334 is at least 5 times larger than the cross-sectional area of the adsorption port 323. The adsorption port 323 cannot be too large, otherwise the buffer cavity 334 will not have a buffering effect. In addition, due to the existence of the buffer cavity 334, the vacuum adsorption force in the negative pressure channel can be effectively buffered, and the adsorbed impurities will not have the risk of blocking the adsorption port 323 or the negative pressure channel.
[0043] In some embodiments, Figure 2 and Figure 4 As shown, a core 320 is provided on one side of the second shaping member 330 that is in contact with the first shaping member 310. Figure 7 and Figure 8 As shown, the suction port 323 is arranged on the core 320, and one side of the core 320 cooperates with the profiling groove on the first shaping member 310 to form the shaping groove 311. The profiling surface 321 of the core 320 for shaping is polished, and the suction port 323 is adjacent to the profiling surface 321. In the embodiment of the present application, the core 320 is made of stainless steel.
[0044] Further, such as Figure 5 and Figure 6 As shown, the second shaping member 330 is provided with the above-mentioned buffer cavity 334, and after the core 320 is embedded in the second shaping member 330, the suction port 323 is aligned with one end of the buffer cavity 334. Figure 7and Figure 8 As shown, the core 320 has connecting parts 322 extending outwardly on both sides, and the corresponding second shaping member 330 is provided with a positioning groove 332 for the core 320 to be inserted into, and the positioning groove 332 is provided with a limited position path 3321 at the position corresponding to the connecting part 322. After the core 320 is inserted into the positioning groove 332, it is further fastened by bolts.
[0045] In some embodiments, a detachable cover plate 340 is disposed on one side of the second shaping member 330 away from the first shaping member 310, and the cover plate 340 covers the buffer cavity 334, and the entrance end of the negative pressure channel is disposed on the cover plate 340 and aligned with the other end of the buffer cavity 334, such as Fig. 9 and Fig.10 As shown, specifically, the through channel 341 provided on the cover plate 340 constitutes a part of the negative pressure channel, and the through channel 341 can be installed with the gas joint 350. Among them, the second shaping member 330 is provided with a groove 331 for the cover plate 340 to be placed on the side away from the first shaping member 310, so as to realize the rapid positioning of the cover plate 340, and the cover plate 340 is connected to the second shaping member 330 by bolts. The through channel 341 provided on the cover plate 340, the buffer cavity 334 on the second shaping member 330 and the suction port 321 provided on the core 320 constitute the above-mentioned negative pressure channel.
[0046] In a preferred embodiment of the present application, two negative pressure channels are provided, the suction port 323 of one negative pressure channel is close to the entrance end of the shaping groove 311, and the suction port 323 of the other negative pressure channel is close to the exit end of the shaping groove 311. The two negative pressure channels can repeatedly and effectively adsorb impurities and shape, reduce the risk of impurity scratches, and enhance the shaping efficiency. The length of the suction port 323 is set according to the needs of the product. After the extruded blank enters the shaping groove 311, it is adsorbed and shaped by the first suction port 323, and the surface of the extruded blank is adsorbed, shaped and cooled, effectively absorbing impurities in the water, and increasing the smoothness of the product appearance. The second suction port 323 absorbs impurities in the water for a second time, reduces the risk of scratches, strengthens cooling and shaping, and further enhances the glossiness of the product appearance.
[0047] In order to improve the cooling effect of the first shaping member 310, the first shaping member 310 is made of copper. In order to improve wear resistance and reduce loss, the second shaping member 330 and the cover plate 340 are both made of stainless steel.
[0048] The embodiments of the present application are described in detail above in conjunction with the accompanying drawings, but the present application is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present application.
Claims
1. A molding device for extruding a decorative strip, characterized in that: The invention comprises a first pretreatment component (200), a shaping die (300) and a cooler (400), wherein a portion of the shaping die (300) is immersed in the coolant in the cooler (400), the first pretreatment component (200) is arranged close to the entrance end of the shaping die (300), and a second pretreatment component for cooling liquid injection is arranged between the first pretreatment component (200) and the shaping die (300), wherein the shaping die (300) is provided with a suction structure and a shaping groove (311) for shaping, and the suction structure can remove the surface cooling liquid or impurities of the extruded blank entering the shaping groove (311) under the action of negative pressure.
2. The molding extrusion blank shaping device according to claim 1, characterized in that: The shaping mold (300) comprises a first shaping piece (310) and a second shaping piece (330) which are detachably connected, wherein the second shaping piece (330) is covered on the first shaping piece (310) to form the shaping groove (311), and the suction structure is arranged on the second shaping piece (330), and the suction structure comprises at least one negative pressure channel connected to the shaping groove (311).
3. The molding extrusion blank shaping device according to claim 2, characterized in that: An adsorption port (323) is provided at the end of the negative pressure channel bordering the shaping groove (311), and the adsorption port (323) extends along the width direction of the shaping groove (311).
4. The molding extrusion blank shaping device according to claim 3 is characterized in that: The length of the suction port (323) is less than two-thirds of the width of the shaping groove (311), and the width of the suction port (323) is 1.2-1.5 mm.
5. The molding extrusion blank shaping device according to claim 3, characterized in that: A buffer cavity (334) is provided between the two ends of the negative pressure channel, and the cross-sectional area of the buffer cavity (334) is larger than the cross-sectional area of the adsorption port (323).
6. The molding extrusion blank shaping device according to claim 5, characterized in that: A core (320) is provided on one side of the second shaping member (330) that is in contact with the first shaping member (310); the suction port (323) is provided on the core (320); and one side of the core (320) cooperates with the contoured groove on the first shaping member (310) to form the shaping groove (311).
7. The molding extrusion blank shaping device according to claim 6, characterized in that: The second shaping member (330) is provided with the buffer cavity (334), and after the core (320) is embedded in the second shaping member (330), the suction port (323) is aligned with one end of the buffer cavity (334).
8. The molding extrusion blank shaping device according to claim 7, characterized in that: A detachable cover plate (340) is provided on a side of the second shaping member (330) away from the first shaping member (310), and the cover plate (340) covers the buffer cavity (334). The entrance end of the negative pressure channel is provided on the cover plate (340) and is aligned with the other end of the buffer cavity (334).
9. The molding extrusion blank shaping device according to any one of claims 3 to 8, characterized in that: There are two negative pressure channels in total, the adsorption port (323) of one negative pressure channel is close to the entrance end of the shaping groove (311), and the adsorption port (323) of the other negative pressure channel is close to the exit end of the shaping groove (311).
10. The molding extrusion blank shaping device according to any one of claims 2 to 8, characterized in that: The first pre-treatment member (200) and the first shaping member (310) are both made of copper, and the second shaping member (330) is made of stainless steel.