Refrigerator door stand column double-section rolling production line system

Abstract

The invention provides a refrigerator door stand column double-section rolling production line system, and relates to the technical field of refrigerator part production, the refrigerator door stand column double-section rolling production line system comprises a production line body, a film pressing guide wheel assembly and a press machine are arranged on the right side of the upper end of the production line body, and the press machine is located in the middle of the left end of the film pressing guide wheel assembly; the production line body further comprises a rolling mill roller assembly and a variable cross-section rolling wheel assembly; the rolling mill roller assembly is located in the middle of the left end of the press, and the variable-cross-section rolling wheel assembly is located in the middle of the left end of the rolling mill roller assembly. A material guide roller assembly is arranged between the rolling mill roller assembly and the press machine; a discharging roller assembly and a control panel are arranged in the middle of the left end of the variable cross-section rolling wheel assembly. According to the production line system, double-section rolling is carried out on the refrigerator door stand column, rolling forming is carried out through four procedures of the variable-section rolling wheel assembly and the finish paint plate, the production cost is greatly reduced, sliding is carried out through the sliding rail, and the rolling wheels can be replaced more conveniently.

Description

Technical Field

[0001] This invention relates to the field of refrigerator component manufacturing technology, specifically to a refrigerator door column double-section roll forming production line system. Background Technology

[0002] Refrigerator door pillars are vertical supports on the refrigerator door, usually located on either side of the door. Their function is to support the refrigerator door and ensure it can open and close smoothly. Refrigerator door pillars are typically made of metal or plastic, possessing a certain level of strength and stability. When using a refrigerator, food or other items are often placed on the door shelves; the door pillars can bear a certain weight, allowing the refrigerator door to open and close smoothly. The design and materials of the refrigerator door pillars may vary depending on the refrigerator model and brand, but their main function remains the same.

[0003] To reduce painting costs and improve production efficiency, refrigerator columns are often made of coated steel sheets. The advantage of coated steel sheets is that the refrigerator columns do not require painting after molding and can be directly installed and used. However, the columns are exterior parts, and the exterior needs to be protected during production to avoid scratches. Figure 1 The image shows a typical cross-section of a refrigerator column. Currently, refrigerator columns are often produced using continuous molds. Different molds are required for different cross-sections, resulting in a large investment in molds. If a rolling process is used, two conventional rolling lines are also required. When the product volume is not very large (annual output of about 200,000), two rolling lines require a large amount of land, resulting in low utilization of factory space.

[0004] To address the aforementioned issues, we propose a dual-section roll forming production line system for refrigerator door uprights. Summary of the Invention

[0005] To address the problems in the background art, the present invention provides a refrigerator door column double-section roll forming production line system.

[0006] To achieve the above objectives, the technical solution adopted by the present invention is as follows: A refrigerator door pillar double-section roll forming production line system includes a production line body. A pressing guide roller assembly and a press are located on the upper right side of the production line body, with the press situated at the middle left end of the pressing guide roller assembly. The production line body also includes a roll forming mill roller assembly and a variable cross-section roll forming roller assembly. The roll forming mill roller assembly is located at the middle left end of the press, and the variable cross-section roll forming roller assembly is located at the middle left end of the roll forming mill roller assembly. A guide roller assembly is positioned between the roll forming mill roller assembly and the press. A discharge roller assembly and a control panel are located at the middle left end of the variable cross-section roll forming roller assembly. The control panel is electrically connected to the pressing guide roller assembly, the press, the guide roller assembly, the discharge roller assembly, the roll forming mill roller assembly, and the variable cross-section roll forming roller assembly.

[0007] In the above technical solution, the coating strip can be coated by the pressure guide roller assembly, then the coating strip is cut and punched by the press, and then transferred to the variable cross-section roller assembly for four processing steps to form the refrigerator door column.

[0008] As a further improvement to the above solution, the variable cross-section rolling mill assembly includes four sets of roller assemblies for different processes. Each roller assembly includes an upper roller and a lower roller. An upper seat plate is provided at the bottom center of the roller assembly. Two sets of fixed seats are provided on both sides of the upper end of the upper seat plate. The roller assembly is rotatably installed on the inner center of the fixed seats. The upper roller and the lower roller are driven to rotate by a power system.

[0009] In the above technical solution, the upper and lower rollers are driven by a power system to rotate, thereby rolling the coated sheet material into shape.

[0010] As a further improvement to the above solution, the power system is powered by an electric motor, which then provides power to the variable cross-section rolling mill assembly through a transmission system. The transmission system includes a reducer and sprockets and chains, and the electric motor is fixedly installed on both sides of the upper end of the upper seat plate.

[0011] As a further improvement to the above solution, a slide rail is provided at the center of the bottom end of the upper seat plate, and the upper seat plate slides on the slide rail driven by a cylinder. Limiting plates are provided on both sides of the bottom end of the upper seat plate.

[0012] In the above technical solution, the upper seat plate is driven to slide horizontally by a cylinder, which can move and adjust the position of the roller assembly, thereby facilitating the maintenance and replacement of the upper and lower rollers by the staff.

[0013] As a further improvement to the above solution, a conveyor belt is provided at the middle of the left end of the production line body, and the inlet end of the conveyor belt is located at the bottom of the left end of the discharge roller assembly.

[0014] In the above technical solution, the roll-formed refrigerator door pillars can be transferred and transported to the packaging area for packaging via a conveyor belt.

[0015] As a further improvement to the above solution, the right end of the film pressing guide roller assembly is provided with a film covering frame and a feeding frame. The film covering frame is located on the upper right side of the production line body, and the feeding frame is located in the middle of the right side of the production line body.

[0016] In the above technical solution, the laminating rack is used to hold PET film rolls, and the feeding rack is used to hold topcoat sheet rolls.

[0017] As a further improvement to the above solution, the pressure roller assembly includes two sets of pressure rollers, which are installed vertically and rotate relative to each other.

[0018] In the above technical solution, the PET film and the topcoat board can be pressed together by the pressure roller assembly.

[0019] As a further improvement to the above solution, a material support guide wheel assembly is provided at the middle of the right end of the production line body. The material support guide wheel assembly is located on the lower left side of the feeding frame, and a sensor is provided in the material support guide wheel assembly.

[0020] As a further improvement to the above solution, the production line also includes a hydraulic system, including a hydraulic motor, which drives the press and the feeding rack.

[0021] As a further improvement to the above solution, the production line also includes a cooling system, which consists of a fan and coolant, and the cooling system acts on the hydraulic system and motor to cool them down.

[0022] Compared with the prior art, the beneficial effects of the present invention are: The production line system of this invention realizes double-section rolling of refrigerator door pillars. Through the variable cross-section rolling wheel assembly, the paint plate is rolled and formed in four processes, which effectively solves the problems in the background technology, greatly reduces the production cost, and the roller assembly can be moved horizontally by sliding through the slide rail, making it easier to maintain and replace the upper and lower rollers. Attached Figure Description

[0023] Figure 1 This is a side sectional view of the production line of the present invention; Figure 2 This is a top view of the production line of the present invention; Figure 3 This is a schematic diagram of the structure of the press used for cutting and punching in this invention; Figure 4 This is a side view of the variable cross-section rolling mill assembly in this invention; Figure 5 This is a side sectional view of the variable cross-section rolling mill assembly in this invention; Figure 6 This is a schematic diagram of the four processes in the variable cross-section rolling mill assembly of the present invention; Figure 7 This is a forming diagram of each process in the manufacturing of the refrigerator column in this invention.

[0024] In the diagram: 1. Production line body; 2. Feeding rack; 3. Material support guide roller assembly; 4. Film coating rack; 5. Film pressing guide roller assembly; 6. Press; 7. Guide roller assembly; 8. Roller assembly; 9. Variable cross-section roller assembly; 91. Cylinder; 92. Slide rail; 93. Upper seat plate; 94. Limit plate; 95. Fixed seat; 96. Upper roller; 97. Lower roller; 98. Motor; 10. Control panel; 11. Discharge roller assembly; 12. Conveyor belt; 13. Transmission system; 14. Power system; 15. Cooling system; 16. Hydraulic system. Detailed Implementation

[0025] This application provides a refrigerator door column double-section roll forming production line system. By setting up a variable cross-section roll forming wheel assembly 9, the system performs four roll forming processes on the coated plate, effectively solving the problems in the background technology and greatly reducing production costs. The roller assembly can be moved horizontally by sliding through the slide rail 92, making it easier to maintain and replace the upper roller 96 and the lower roller 97.

[0026] Example: Refer to Figures 1-7 As shown, a refrigerator door column double-section roll forming production line system of this embodiment includes a production line body 1. A film pressing guide roller assembly 5 and a press 6 are arranged on the upper right side of the production line body 1. A film covering frame 4 and a feeding frame 2 are arranged on the right end of the film pressing guide roller assembly 5. The film covering frame 4 is located on the upper right side of the production line body 1, and the feeding frame 2 is located in the middle of the right side of the production line body 1. The film pressing guide roller assembly 5 includes two sets of film pressing rollers. The two sets of film pressing rollers are installed vertically and rotate relative to each other.

[0027] The PET film roll can be installed via the laminating frame 4, and the topcoat sheet roll can be supported and installed via the feeding frame 2. When the topcoat sheet and the PET film pass through the pressing roller assembly 5, the topcoat sheet can be laminated by rolling and pressing with two sets of pressing rollers. During lamination, the PET film is first attached to the topcoat sheet and passes through the pressing roller assembly 5. The PET film can then move synchronously with the topcoat sheet material. The laminating frame 4 has a damping function when rotating, which can prevent the PET film roll from becoming slack due to asynchronous rotation. The PET film provides protection, preventing the topcoat sheet from being scratched during the rolling process.

[0028] A material guide roller assembly 3 is installed at the middle of the right end of the production line body 1. The material guide roller assembly 3 is located on the lower left side of the feeding frame 2. The material guide roller assembly 3 is equipped with a sensor. When the topcoat board is guided by the material guide roller assembly 3, the sensor can sense the state of the topcoat board material strip, identify abnormal situations in time, and give the system an alarm signal.

[0029] The press 6 is located at the middle of the left end of the pressure guide roller assembly 5; when the coated topcoat sheet moves to the press 6, it is pressed down by the press 6, and the cutting and punching die installed on the press 6 will perform the cutting process on the topcoat sheet strip.

[0030] In addition, the production line body 1 also includes a rolling mill roller assembly 8 and a variable cross-section rolling mill roller assembly 9; the rolling mill roller assembly 8 is located at the middle of the left end of the press 6, and the variable cross-section rolling mill roller assembly 9 is located at the middle of the left end of the rolling mill roller assembly 8; a guide roller assembly 7 is provided between the rolling mill roller assembly 8 and the press 6.

[0031] The guide roller assembly 7 guides the topcoat sheet material from the press 6 to the rolling mill roller assembly 8 for transmission, and then to the variable cross-section rolling mill roller assembly 9 for processing.

[0032] The left end of the variable cross-section rolling mill assembly 9 is provided with a discharge roller assembly 11 and a control panel 10. The discharge roller assembly 11 can guide and transport the processed material.

[0033] The variable cross-section rolling mill assembly 9 includes four sets of rolling mill assemblies for different processes. Each rolling mill assembly includes an upper rolling mill 96 and a lower rolling mill 97. An upper seat plate 93 is provided at the center of the bottom of the rolling mill assembly. Two sets of fixed seats 95 are provided on both sides of the upper end of the upper seat plate 93. The rolling mill assembly is rotatably mounted on the inner center of the fixed seats 95. The upper rolling mill 96 and the lower rolling mill 97 are driven to rotate by a power system 14. The power system 14 is powered by a motor 98, and then provides power for the operation of the variable cross-section rolling mill assembly 9 through a transmission system 13. The transmission system 13 includes a reducer and a sprocket and chain. The motor 98 is fixedly mounted on both sides of the upper end of the upper seat plate 93.

[0034] The variable cross-section rolling mill assembly 9 is driven by the power system 14 to perform four rolling processes on the coated sheet material, thereby manufacturing the refrigerator door column.

[0035] In some examples, a conveyor belt 12 is provided at the middle of the left end of the production line body 1. The inlet end of the conveyor belt 12 is located at the bottom left end of the discharge roller assembly 11. The conveyor belt 12 can transfer the rolled material to the packaging line for packaging and shipping.

[0036] In some examples, the production line body 1 also includes a hydraulic system 16, which includes a hydraulic motor. The hydraulic system 16 drives the press 6 and the feed rack 2. The production line body 1 also includes a cooling system 15, which consists of a fan and coolant, to cool down the high temperature generated by the hydraulic system 16 and the motor 98 during operation, thereby ensuring that the production line operates at full load.

[0037] In some examples, a slide rail 92 is provided at the bottom center of the upper seat plate 93. The upper seat plate 93 is driven by a cylinder 91 to slide on the slide rail 92. Limit plates 94 are provided on both sides of the bottom of the upper seat plate 93. The upper seat plate 93 is driven by a cylinder 91 to slide, which facilitates the maintenance and replacement of the upper roller 96 and the lower roller 97 by the staff.

[0038] In some examples, the control panel 10 is electrically connected to the pressure roller assembly 5, the press 6, the guide roller assembly 7, the discharge roller assembly 11, the rolling mill roller assembly 8, and the variable cross-section rolling mill roller assembly 9. The control panel 10 can be used to set the part length, the running speed of the automated production line, the pressure of the hydraulic system 16, and the speed of the motor 98, and can display the running status of the production line body 1 and the production quantity count statistics in real time.

[0039] The working principle of this invention is: First, the coated sheet material is coated with film using the pressure guide roller assembly 5, and then conveyed to the press 6. When the coated sheet material arrives at the press 6, it stops at the length setting on the control panel 10. An infrared sensor detects whether the length meets the set size requirement. Once the setting is met, the press 6 presses down to cut and punch holes in the coated sheet material. Figure 3 As shown.

[0040] The finished painted sheet, after being cut and punched, is fed into the rolling mill roller assembly 8 via the guide roller assembly 7, and then rolled into shape by the variable cross-section rolling roller assembly 9. The rolling process consists of four steps, such as... Figure 6 and Figure 7 As shown.

[0041] The coated sheet moves through the roller assembly, gradually forming the desired finished product, such as... Figure 5 As shown.

[0042] Both the upper roller 96 and the lower roller 97 are driven by the power system 14. The motor 98 drives the sprocket after being reduced in speed by the reducer. The sprocket drives each upper roller 96 and lower roller 97 in turn through the chain. The movement of the paint plate is due to the friction generated when the upper roller 96 and lower roller 97 rotate. The multi-angle schematic diagram of the variable cross-section roller assembly 9 is shown below. Figure 4 and Figure 5 As shown.

[0043] Finally, the material that has been rolled can be conveyed through the discharge roller assembly 11 and the conveyor belt 12.

[0044] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. A production line system for double-section roll forming of refrigerator door uprights, characterized in that, The production line includes a production line body (1), on the upper right side of which a pressure roller assembly (5) and a press (6) are provided, and the press (6) is located in the middle of the left end of the pressure roller assembly (5). The production line body (1) also includes a rolling mill roller assembly (8) and a variable cross-section rolling mill roller assembly (9). The rolling mill roller assembly (8) is located at the middle of the left end of the press (6), and the variable cross-section rolling mill roller assembly (9) is located at the middle of the left end of the rolling mill roller assembly (8). A guide roller assembly (7) is provided between the rolling mill roller assembly (8) and the press (6). The left end of the variable cross-section rolling mill assembly (9) is provided with a discharge roller assembly (11) and a control panel (10). The control panel (10) is electrically connected to the pressure film guide roller assembly (5), the press (6), the guide roller assembly (7), the discharge roller assembly (11), the rolling mill roller assembly (8), and the variable cross-section rolling mill assembly (9).

2. The refrigerator door column double-section roll forming production line system according to claim 1, characterized in that, The variable cross-section rolling mill assembly (9) includes four sets of roller assemblies for different processes, and the roller assembly includes an upper roller (96) and a lower roller (97). The roller assembly has an upper seat plate (93) at the bottom center. Two sets of fixed seats (95) are provided on both sides of the upper end of the upper seat plate (93). The roller assembly is rotatably installed in the middle of the inner side of the fixed seats (95). The upper roller (96) and the lower roller (97) are driven to rotate by the power system (14).

3. The refrigerator door column double-section roll forming production line system according to claim 2, characterized in that, The power system (14) is powered by a motor (98), and then provides power to the variable cross-section rolling mill assembly (9) through a transmission system (13). The transmission system (13) includes a reducer and a sprocket and chain. The motor (98) is fixedly installed on both sides of the upper end of the upper seat plate (93).

4. A refrigerator door column double-section roll forming production line system according to claim 3, characterized in that, The upper seat plate (93) is provided with a slide rail (92) at the bottom center. The upper seat plate (93) is driven by a cylinder (91) to slide on the slide rail (92). Limiting plates (94) are provided on both sides of the bottom of the upper seat plate (93).

5. The refrigerator door column double-section roll forming production line system according to claim 1, characterized in that, A conveyor belt (12) is provided at the middle of the left end of the production line body (1), and the inlet end of the conveyor belt (12) is located at the bottom of the left end of the discharge roller assembly (11).

6. A refrigerator door column double-section roll forming production line system according to claim 5, characterized in that, The right end of the pressure film guide roller assembly (5) is provided with a film coating frame (4) and a feeding frame (2). The film coating frame (4) is located on the upper right side of the production line body (1), and the feeding frame (2) is located in the middle of the right side of the production line body (1).

7. A refrigerator door column double-section roll forming production line system according to claim 6, characterized in that, The pressure roller assembly (5) includes two sets of pressure rollers, which are installed vertically and rotate relative to each other.

8. A refrigerator door column double-section roll forming production line system according to claim 6, characterized in that, The production line body (1) is provided with a material guide wheel assembly (3) at the middle of the right end. The material guide wheel assembly (3) is located on the lower left side of the feeding frame (2). The material guide wheel assembly (3) is equipped with a sensor.

9. A refrigerator door column double-section roll forming production line system according to claim 8, characterized in that, The production line body (1) also includes a hydraulic system (16), which includes a hydraulic motor. The hydraulic system (16) drives the press (6) and the feed rack (2).

10. A refrigerator door column double-section roll forming production line system according to claim 9, characterized in that, The production line body (1) also includes a cooling system (15), which consists of a fan and coolant. The cooling system (15) acts on the hydraulic system (16) and the motor (98) to cool them down.

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