A synchronous rolling mechanism for automobile trim processing

Abstract

The utility model relates to the technical field of automobile trim processing, and specifically relates to a synchronous roller pressing mechanism for automobile trim processing, which comprises a roller pressing frame and a pretreatment assembly, a synchronous roller set is arranged in the middle of the top of the roller pressing frame, the pretreatment assembly comprises a cleaning assembly and a preheating assembly, the cleaning assembly is arranged at the feeding end of the roller pressing frame, the preheating assembly is arranged between the cleaning assembly and the synchronous roller set, and the synchronous roller set comprises roller racks that are equidistantly arranged on both sides of the top of the roller pressing frame. The mechanism composed of the roller pressing frame and the pretreatment assembly provides a synchronous roller pressing device with high forming quality for automobile metal trims, the metal trim blanks are synchronously roller pressed into shape by the equidistantly arranged lower pressing rollers and upper pressing rollers for profiling, the surface of the metal trim blanks entering the roller pressing section is cleaned and preheated by the pretreatment assembly, and the quality of the metal trim blanks is improved.

Description

Technical Field

[0001] This utility model relates to the field of automotive trim processing technology, specifically to a synchronous rolling mechanism for automotive trim processing. Background Technology

[0002] Car trim strips are metal parts installed on the surface of the car body, serving both decorative and protective functions. They are commonly found on car doors, windows, and roofs. They are generally made of materials such as aluminum alloy and stainless steel. After being shaped by roll forming, they undergo processes such as electroplating and wire drawing, providing scratch resistance and corrosion resistance, and enhancing the overall refinement and luxury of the vehicle.

[0003] Traditional automotive trim blanks lack pretreatment before synchronous roll forming, which causes foreign objects on the surface of the trim to be pressed into the metal surface during high-pressure roll forming. This easily leads to defects such as pits, scratches, color differences, or foreign object embedding on the trim surface. In addition, the existing cold pressing process for trim lacks preheating treatment that can cooperate with the feeding end of the synchronous roll forming mechanism, making roll forming difficult, requiring higher pressure, and resulting in high residual stress inside the material after forming. This can easily cause the trim to spring back and warp, affecting the appearance quality of the trim. Therefore, a synchronous roll forming mechanism for automotive trim processing is proposed. Utility Model Content

[0004] To address the problems in the existing technology, this utility model provides a synchronous rolling mechanism for processing automotive trim strips.

[0005] The technical solution adopted by this utility model to solve its technical problem is a synchronous roller pressing mechanism for processing automotive trim strips, including a roller pressing frame and a pretreatment component. A synchronous roller group is arranged in the middle of the top of the roller pressing frame. The pretreatment component includes a cleaning component and a preheating component. The cleaning component is arranged at the feeding end of the roller pressing frame, and the preheating component is arranged between the cleaning component and the synchronous roller group. The synchronous roller assembly includes roller frames equidistantly installed on both sides of the top of the roller press frame, with the roller frames on both sides of the top of the roller press frame arranged symmetrically. A lower pressure roller and an upper pressure roller are respectively installed at the bottom and top of the symmetrically arranged roller frames. The two ends of the lower pressure roller are rotatably connected to the roller frame through bearings. A sliding groove is provided at the top of the roller frame, and a slider is slidably connected in the sliding groove. The two ends of the upper pressure roller are rotatably connected to the slider at the corresponding position through bearings. A screw is rotatably connected to the top of the slider through bearings. The top of the screw is threadedly connected to the top of the roller frame, and the part of the screw is provided with a hexagonal head.

[0006] By adopting the above technical solution, a synchronous roll forming device with high forming quality is provided for automotive metal trim through a mechanism composed of a roll forming frame and a pre-treatment component. The metal trim blank is synchronously roll-formed by several sets of equal-distance lower and upper roll forming rollers. The pre-treatment component cleans and preheats the surface of the metal trim blank entering the roll forming section, thereby improving the quality of the metal trim blank in use.

[0007] Specifically, one end of the lower pressure roller passes through the roller frame and is equipped with a first sprocket and a second sprocket via a key pin. A reduction motor is installed at the top inside the roller press frame. A third sprocket is installed on the output shaft of the reduction motor. The third sprocket is connected to the second sprocket located near the feed end of the roller press frame via a transmission chain. The first sprockets that are not connected to the third sprocket but are adjacent to each other and the second sprockets that are adjacent to each other are connected via transmission chains.

[0008] By adopting the above technical solution, the lower pressure roller is driven by a geared motor, so that the automotive trim strip can be driven by the roller pressing on the roller press frame.

[0009] Specifically, the feed end and discharge end of the roller press frame are equipped with support rollers through bearings, and the height of the top of the support rollers is the same as the height of the top of the lower pressure roller. The cleaning component and the preheating component are arranged between the support rollers at the feed end of the roller press frame.

[0010] By adopting the above technical solution, the automotive trim strips on the roller press frame are provided with auxiliary support by the support rollers to ensure the horizontal support height of the automotive trim strips entering the roller pressing section.

[0011] Specifically, the cleaning component includes a first box body, the two ends of which are bolted to the top of the feed end of the roller press frame. The first box body has first inlet and outlet ports on both sides for the automotive trim blank to pass through. The height of the first inlet and outlet ports is the same as the top of the support roller. Brushes are provided inside the first inlet and outlet ports. An air inlet port is provided on the top of the first box body. A filter screen is installed in the air inlet port by bolts. An exhaust connector is connected to one end of the first box body. A bag filter is installed on one side of the roller press frame, and the dust inlet end of the bag filter is connected to the exhaust connector through a pipe.

[0012] By adopting the above technical solution, through the cooperation of the bag filter and the first box, after the bag filter is started, it can perform dust extraction in the first box, so that the car trim strips passing through the first box can be easily cleaned. At the same time, the brush can be used to easily clean the surface of the car trim strips. The air inlet facilitates the entry of external air, avoiding a large pressure difference between the inside of the first chamber and the outside. The filter screen can filter the air passing through the air inlet. During use, personnel should regularly clean and maintain the surface of the filter screen and the brush, and replace it when necessary.

[0013] Specifically, the preheating component includes a second box body, the two ends of which are installed to the roller press frame by bolts, and the second box body is made of alumina material. The second box body has a second inlet and outlet on each side, which are at the same height as the first inlet and outlet. A high-frequency induction machine is provided on the other side of the roller press frame. The high-frequency induction coil of the high-frequency induction machine is located in the second box, and the shape of the high-frequency induction coil is bent into a rectangular structure corresponding to the second inlet and outlet.

[0014] By adopting the above technical solution, through the cooperation of the high-frequency induction machine and the second box, after the high-frequency induction machine is started, the high-frequency induction coil of the high-frequency induction machine can heat the automotive metal trim strip that has passed through the second box, so that the shaping effect of the trim strip after entering between the lower pressure roller and the upper pressure roller is better.

[0015] The beneficial effects of this utility model are as follows: The mechanism, composed of a roll forming frame and a pretreatment component, provides a high-quality synchronous roll forming device for automotive metal trim strips. Several sets of equally spaced lower and upper pressure rollers synchronously roll-form the metal trim strip blanks. The pretreatment component cleans and preheats the surface of the metal trim strip blanks entering the roll forming section, ensuring a high degree of surface cleanliness and preventing foreign matter adhesion that could lead to a poor appearance after roll forming. Furthermore, the cleaned metal trim strip blanks undergo high-frequency induction heating for preheating, ensuring that the preheated blanks are ready for roll forming. The improved shaping process reduces stress during shaping, enhancing the quality of metal trim blanks. It addresses the shortcomings of traditional automotive trim blanks, such as lack of pretreatment before synchronous roll forming, which leads to foreign matter being pressed into the metal surface during high-pressure roll forming. This results in defects like pits, scratches, color differences, or embedded foreign matter. Furthermore, the current cold-pressing process for trim lacks preheating treatment that coordinates with the feeding end of the synchronous roll forming mechanism, making roll forming difficult, requiring higher pressure, and resulting in high residual stress within the material after forming. This can cause springback and warping deformation, affecting the appearance quality of the trim. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0017] Figure 1 This is a schematic diagram of the overall design of this utility model; Figure 2 For the present utility model Figure 1 Enlarged view of point A in the middle; Figure 3 For the present utility model Figure 1 Enlarged view of point B in the middle; Figure 4 This is a schematic diagram of the shape of the high-frequency induction coil of this utility model; In the diagram: Roller press frame 1, roller frame 101, lower pressure roller 102, upper pressure roller 103, slide groove 104, slider 105, screw 106, first sprocket 107, second sprocket 108, support roller 11, geared motor 12, third sprocket 13, bag filter 2, first housing 21, first inlet / outlet 22, brush 23, air inlet 24, filter screen 25, exhaust connector 26, high-frequency induction machine 3, high-frequency induction coil 301, second housing 31, second inlet / outlet 32. Detailed Implementation

[0018] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0019] like Figure 1-4 As shown, the present invention provides a synchronous roller pressing mechanism for processing automotive trim strips, comprising a roller pressing frame 1 and a pretreatment assembly. A synchronous roller group is provided in the middle of the top of the roller pressing frame 1. The pretreatment assembly includes a cleaning assembly and a preheating assembly. The cleaning assembly is located at the feed end of the roller pressing frame 1, and the preheating assembly is located between the cleaning assembly and the synchronous roller group. The synchronous roller assembly includes roller frames 101 equidistantly installed on both sides of the top of the roller press frame 1, and the roller frames 101 on both sides of the top of the roller press frame 1 are symmetrically arranged. A lower pressure roller 102 and an upper pressure roller 103 are respectively arranged at the bottom and top of the symmetrically arranged roller frames 101. The two ends of the lower pressure roller 102 are rotatably connected to the roller frame 101 through bearings. A sliding groove 104 is provided in the top of the roller frame 101, and a slider 105 is slidably connected in the sliding groove 104. The two ends of the upper pressure roller 103 are rotatably connected to the slider 105 at the corresponding positions through bearings. A screw 106 is rotatably connected to the top of the slider 105 through a bearing. The top of the screw 106 is threadedly connected to the top of the roller frame 101, and the part of the screw 106 is provided with a hexagonal head.

[0020] This utility model also includes a first sprocket 107 and a second sprocket 108 installed at one end of the lower pressure roller 102 through the roller frame 101 and via a key pin. A reduction motor 12 is installed at the top inside the roller press frame 1. A third sprocket 13 is installed on the output shaft of the reduction motor 12. The third sprocket 13 is connected to the second sprocket 108 located near the feed end of the roller press frame 1 via a transmission chain. The first sprocket 107 and the adjacent second sprocket 108 that are not connected to the third sprocket 13 are connected via transmission chains.

[0021] In use, the geared motor 12 provides driving force to the lower pressure roller 102, so that the car trim strip can be rolled on the roller press frame 1.

[0022] The present invention also includes that a support roller 11 is installed in the feed end and the discharge end of the roller press frame 1 through bearings, and the height of the top of the support roller 11 is the same as the height of the top of the lower pressure roller 102. The cleaning component and the preheating component are arranged between the support rollers 11 at the feed end of the roller press frame 1.

[0023] During use, the support roller 11 is used to provide auxiliary support for the automotive trim strips entering and exiting the roller press frame 1, so as to ensure the horizontal support height of the automotive trim strips entering the roller pressing section.

[0024] The present invention also includes a cleaning component comprising a first box body 21, the two ends of the first box body 21 being bolted to the top of both sides of the feed end of the roller press frame 1, the first box body 21 having first inlet and outlet ports 22 for the automotive trim blank to pass through on both sides, the first inlet and outlet ports 22 being at the same height as the top of the support roller 11, the inner side of each of the first inlet and outlet ports 22 being provided with a brush 23, the top of the first box body 21 having an air inlet 24, the air inlet 24 having a filter screen 25 installed inside by bolts, and one end of the first box body 21 being connected to an exhaust connector 26; A bag filter 2 is provided on one side of the roller press frame 1, and the dust inlet end of the bag filter 2 is connected to the exhaust connector 26 through a pipe.

[0025] In use, based on the cooperation between the bag filter 2 and the first housing 21, after the bag filter 2 is started, it can perform dust extraction in the first housing 21, so that the car trim strips passing through the first housing 21 can be easily cleaned. At the same time, the brush 23 can be used to simply brush the surface of the car trim strips. The air inlet 24 facilitates the entry of external air, avoiding a large pressure difference between the inside of the first housing 21 and the outside. The filter screen 25 can filter the air passing through the air inlet 24. During use, the surface of the filter screen 25 and the brush 23 should be cleaned and maintained by personnel regularly, and can be replaced when necessary.

[0026] The present invention also includes that the preheating component includes a second box body 31, the two ends of the second box body 31 are installed to the roller press frame 1 by bolts, and the second box body 31 is made of alumina material. The second box body 31 has a second inlet and outlet 32 ​​on both sides, which are at the same height as the first inlet and outlet 22. A high-frequency induction machine 3 is provided on the other side of the roller press frame 1. The high-frequency induction coil 301 of the high-frequency induction machine 3 is located inside the second box 31, and the shape of the high-frequency induction coil 301 is bent into a rectangular structure corresponding to the second inlet and outlet 32.

[0027] When in use, the high-frequency induction machine 3 and the second box 31 work together. After the high-frequency induction machine 3 is started, the high-frequency induction coil 301 of the high-frequency induction machine 3 can heat the automotive metal trim strip that has passed through the second box 31, so that the trim strip can be better shaped after entering between the lower pressure roller 102 and the upper pressure roller 103.

[0028] In use, the automotive metal trim strip to be rolled is sequentially passed through the first inlet / outlet 22 of the first box 21, the second inlet / outlet 32 ​​of the second box 31, and between the lower pressure roller 102 and the upper pressure roller 103. The third sprocket 13 is driven to rotate by the reduction motor 12. The third sprocket 13 drives the corresponding second sprocket 108 to rotate. Based on the second sprocket 108, the coaxial first sprocket 107 drives the adjacent first sprocket 107 to rotate synchronously. The coaxial second sprocket 108 of the adjacent first sprocket 107 drives the adjacent second sprocket 108 to rotate synchronously. This makes the lower pressure rollers 102 rotate synchronously, so as to provide synchronous rolling driving force to the automotive trim strip passing between the lower pressure roller 102 and the upper pressure roller 103, so that the automotive trim strip is rolled and formed. As the automotive trim strips continuously enter the synchronous rolling section formed by the lower pressure roller 102 and the upper pressure roller 103, they undergo pretreatment by the cleaning and preheating components in the pretreatment assembly. Based on the cooperation between the bag filter 2 and the first box 21, the bag filter 2 can perform dust extraction in the first box 21 after it is started, allowing the automotive trim strips passing through the first box 21 to receive simple cleaning. At the same time, the brush 23 can perform simple brushing on the surface of the automotive trim strips to improve the cleanliness of the surface. Utilizing the cooperation between the high-frequency induction machine 3 and the second box 31, after the high-frequency induction machine 3 is started, the high-frequency induction coil 301 of the high-frequency induction machine 3 can heat the automotive metal trim strips passing through the second box 31, so that the shaping effect of the trim strips after entering between the lower pressure roller 102 and the upper pressure roller 103 is better. By setting up a synchronous rolling device with a pretreatment mechanism, the appearance quality of the automotive metal trim strips is improved.

[0029] Furthermore, the working height of the upper pressure roller 103 is adjusted according to the thickness of the metal trim and the processing requirements of the roller pressing section. During adjustment, the hexagonal head of the screw 106 is rotated by using an Allen wrench to make the screw 106 threaded up and down on the roller frame 101, thereby driving the working height of the slider 105 to be adjusted, so that the height of the upper pressure roller 103 installed on the slider 105 can be adjusted.

[0030] Furthermore, the shape and quantity of the lower pressure roller 102 and the upper pressure roller 103 are set according to the actual forming requirements of automotive metal trim strips.

[0031] Furthermore, the driving speed of the geared motor 12 is set by a person through the motor controller of the geared motor 12.

[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The descriptions of the above embodiments and specifications are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A synchronous rolling mechanism for processing automotive trim strips, characterized in that, It includes a roller press frame (1) and a pretreatment component. A synchronous roller group is provided in the middle of the top of the roller press frame (1). The pretreatment component includes a cleaning component and a preheating component. The cleaning component is located at the feed end of the roller press frame (1), and the preheating component is located between the cleaning component and the synchronous roller group. The synchronous roller group includes roller frames (101) installed at equal distances on both sides of the top of the roller press frame (1), and the roller frames (101) on both sides of the top of the roller press frame (1) are symmetrically arranged. The bottom and top of the symmetrically arranged roller frames (101) are respectively provided with a lower pressure roller (102) and an upper pressure roller (103). The two ends of the lower pressure roller (102) are rotatably connected to the roller frame (101) through bearings. The top of the roller frame (101) is provided with a groove (104), and a slider (105) is slidably connected in the groove (104). The two ends of the upper pressure roller (103) are rotatably connected to the slider (105) at the corresponding position through bearings. The top of the slider (105) is rotatably connected to a screw (106) through a bearing. The top of the screw (106) is threadedly connected to the top of the roller frame (101), and the part of the screw (106) is provided with a hexagonal head.

2. The synchronous rolling mechanism for automotive trim processing according to claim 1, characterized in that, One end of the lower pressure roller (102) passes through the roller frame (101) and is fitted with a first sprocket (107) and a second sprocket (108) via a key pin. A geared motor (12) is installed at the top inside the roller press frame (1). A third sprocket (13) is installed on the output shaft of the geared motor (12). The third sprocket (13) is connected to the second sprocket (108) located near the feed end of the roller press frame (1) via a transmission chain. The first sprocket (107) that is not connected to the third sprocket (13) and is adjacent to the second sprocket (108) are connected to each other via transmission chains.

3. The synchronous rolling mechanism for automotive trim processing according to claim 2, characterized in that, The feed end and discharge end of the roller press frame (1) are equipped with support rollers (11) through bearings, and the height of the top of the support roller (11) is the same as the height of the top of the lower roller (102). The cleaning component and the preheating component are arranged between the support rollers (11) at the feed end of the roller press frame (1).

4. The synchronous rolling mechanism for automotive trim processing according to claim 3, characterized in that, The cleaning assembly includes a first box (21), the two ends of which are bolted to the top of the feed end of the roller press frame (1). The first box (21) has first inlet and outlet ports (22) on both sides for the automotive trim blank to pass through. The first inlet and outlet ports (22) are at the same height as the top of the support roller (11). The inner side of the first inlet and outlet ports (22) is provided with brushes (23). The top of the first box (21) has an air inlet (24). A filter screen (25) is installed in the air inlet (24) by bolts. One end of the first box (21) is connected to an exhaust connector (26). A bag filter (2) is provided on one side of the roller press frame (1), and the dust inlet end of the bag filter (2) is connected to the exhaust connector (26) through a pipe.

5. A synchronous rolling mechanism for processing automotive trim strips according to claim 4, characterized in that, The preheating component includes a second box (31), the two ends of which are installed with the roller press frame (1) by bolts, and the second box (31) is made of alumina material. The second box (31) has a second inlet and outlet (32) at the same height as the first inlet and outlet (22) on both sides. A high-frequency induction machine (3) is provided on the other side of the roller press frame (1). The high-frequency induction coil (301) of the high-frequency induction machine (3) is located in the second box (31), and the high-frequency induction coil (301) is bent into a rectangular structure corresponding to the second inlet and outlet (32).

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