Special preheating device used before forming of automobile vacuum pipe
By designing a preheating device with an electric heating box and a preheating cylinder row, the automobile vacuum tube is preheated under temperature control, which solves the problem of the vacuum tube breaking before bending, improves the yield rate and reduces production costs.
Patent Information
- Application Number
- CN202521848229.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-29
- Publication Date
- 2025-10-14
- Estimated Expiration
- 2035-08-29
AI Technical Summary
Automotive vacuum tubes are not preheated and softened before bending and forming, making them prone to breakage, resulting in high scrap rates and increased production costs.
A preheating device was designed, which included an electric heating box, a first and a second preheating cylinder row. The temperature of the electric heating box was adjusted between 75 and 85°C by a controller, and hot air was used to preheat and soften vacuum tubes of different lengths to prevent breakage.
The vacuum tube is softened before being bent and formed, which reduces the risk of breakage, improves the yield rate and reduces production costs.
Smart Images
Figure CN223431975U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the processing equipment field of automobile pipeline, in particular to a special preheating device before automobile vacuum pipe forming. BACKGROUND
[0002] The automobile vacuum pipe is plastic material, which needs to be bent into the required shape when assembled on the automobile. The automobile vacuum pipe needs to be preheated before bending. The purpose of preheating is to soften the automobile vacuum pipe, which is beneficial to bending forming. If preheating is not performed, the automobile vacuum pipe may be broken or cannot be formed, thereby increasing the waste rate and increasing the production cost. SUMMARY
[0003] The utility model discloses a special preheating device before automobile vacuum pipe forming, which softens the automobile vacuum pipe before bending forming, facilitates bending, and prevents the automobile vacuum pipe from being broken during bending, thereby increasing the yield and reducing the production cost.
[0004] A special preheating device before automobile vacuum pipe forming includes a frame body, an operating table, an electric heating box, a first preheating cylinder row and a second preheating cylinder row. The operating table is arranged on the frame body. The electric heating box is located in the frame body and below the operating table. The electric heating box is connected with a power supply. The first preheating cylinder row and the second preheating cylinder row pass through the operating table and are communicated with the top of the electric heating box. The height of the second preheating cylinder row is lower than that of the first preheating cylinder row. The first preheating cylinder row is located on the inner side of the operating table. The second preheating cylinder row is arranged adjacent to the outer side of the first preheating cylinder row, which facilitates the operation of the operator. The top of each preheating cylinder of the first preheating cylinder row and the second preheating cylinder row is provided with a cover. When a preheating cylinder is not used, the cover is placed on the preheating cylinder to prevent heat loss and scalding of the operator and other personnel.
[0005] The bottom of each preheating cylinder of the first preheating cylinder row and the second preheating cylinder row is provided with a screen. The screen prevents the automobile vacuum pipe in the preheating cylinder from falling into the electric heating box.
[0006] Air inlets are arranged on the left and right sides of the electric heating box. The number of air inlets on the left and right sides is two.
[0007] The air inlet cover is provided with a safety net.
[0008] The electric heating box is connected with a controller. The controller can control the temperature in the electric heating box to be 75-85℃.
[0009] The first preheating tube rows are divided into two rows and arranged in the middle of the operating table. The second preheating tube rows are divided into two rows and arranged on the outside of the two rows of first preheating tube rows respectively. The long automobile vacuum tube is inserted into the preheating tube of the first preheating tube row, and the short automobile vacuum tube is inserted into the preheating tube of the second preheating tube row. Because the height of the second preheating tube row is lower than that of the first preheating tube row, it is convenient to stand on the operating table to take the preheated automobile vacuum tube.
[0010] The four legs of the frame are equipped with universal wheels for easy movement.
[0011] The working process of this utility model;
[0012] Start the electric heating box for heating. The controller controls the temperature in the electric heating box to be within the softening range of the automobile vacuum tube. The air enters the electric heating box from the air inlet for heating. The heated hot air enters the preheating cylinder. The automobile vacuum tubes of different lengths are inserted into the first preheating cylinder row and the second preheating cylinder row according to their length for preheating. The preheated automobile vacuum tubes are taken out and placed on the bending mold for bending. The unused preheating cylinders are covered with lids to prevent heat loss or burns to operators and other personnel.
[0013] Beneficial effects of the utility model:
[0014] The utility model provides a special preheating device for automobile vacuum tube molding, which can soften the automobile vacuum tube before bending molding, facilitates bending molding, prevents the automobile vacuum tube from breaking during bending, improves the yield rate, and reduces production costs. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 This is a first perspective schematic diagram of an embodiment of the present utility model;
[0016] Figure 2 It is a second perspective schematic diagram of an embodiment of the utility model;
[0017] Figure 3 This is a third perspective schematic diagram of an embodiment of the present utility model;
[0018] Figure 4 This is a three-dimensional schematic diagram of a preheating cylinder according to an embodiment of the present utility model;
[0019] Figure 5 It is a cross-sectional view of the preheating cylinder of an embodiment of the present utility model. DETAILED DESCRIPTION
[0020] like Figure 1 、 Figure 2 and Figure 3As shown, a special preheating device for automobile vacuum tube molding includes a frame 1, an operating table 2, an electric heating box 3, a first preheating cylinder row 4 and a second preheating cylinder row 5. The operating table 2 is arranged on the frame 1, the electric heating box 3 is located in the frame 1 and below the operating table 2, the electric heating box 3 is connected to a power supply, the first preheating cylinder row 4 and the second preheating cylinder row 5 pass through the operating table 2 and are connected to the top of the electric heating box 3, and the height of the second preheating cylinder row 5 is lower than that of the first preheating cylinder row 4; the first preheating cylinder row 4 is located on the inner side of the operating table 2, and the second preheating cylinder row 5 is arranged adjacent to the outer side of the first preheating cylinder row 4 to facilitate operation by the operator; each preheating cylinder A of the first preheating cylinder row 4 and the second preheating cylinder row 5 has a cover 6 on the top, as shown in FIG. Figure 4 As shown, when a preheating cylinder A is not in use, the cover 6 is placed on the preheating cylinder A to prevent heat loss and scalding of operators and other personnel.
[0021] The bottom of each preheating cylinder A of the first preheating cylinder row 4 and the second preheating cylinder row 5 is installed with a partition 7, such as Figure 5 As shown, the function of the partition 7 is to prevent the automobile vacuum tube in the preheating cylinder from falling into the electric heating box 3.
[0022] Air inlets 8 are provided on the left and right sides of the electric heating box 3 , and there are two air inlets 8 on both the left and right sides.
[0023] The air inlet 8 is covered with a safety net 9.
[0024] The electric heating box 3 is connected to a controller, which can control the temperature in the electric heating box 3 to be 75-85° C. The controller is prior art.
[0025] The first preheating tube row 4 is divided into two rows and is arranged in the middle of the operating table 2. The second preheating tube row 5 is divided into two rows and is arranged on the outside of the two rows of first preheating tube rows 4. The long automobile vacuum tube is inserted into the preheating tube of the first preheating tube row 4, and the short automobile vacuum tube is inserted into the preheating tube of the second preheating tube row 5. Because the height of the second preheating tube row 5 is lower than that of the first preheating tube row 4, it is convenient to stand on the operating table 2 to take the preheated automobile vacuum tube.
[0026] The four legs of the frame 1 are equipped with universal wheels 11 for easy movement.
[0027] The working process of this embodiment:
[0028] The electric heating box 3 is started and powered on for heating. The controller controls the temperature in the electric heating box 3 to be 75-85°C, which is within the softening range of automobile vacuum tubes. Air enters the electric heating box 3 from the air inlet and is heated. The heated hot air enters the preheating cylinder A. Automobile vacuum tubes of different lengths are inserted into the first preheating cylinder row 4 and the second preheating cylinder row 5 according to their lengths for preheating. The preheated automobile vacuum tubes are taken out and placed on the bending mold for bending. The unused preheating cylinders A are covered with a cover 6 to prevent heat loss or burns to operators and other personnel.
Claims
1. A special preheating device for automobile vacuum tubes before molding, characterized by: The invention comprises a frame (1), an operating table (2), an electric heating box (3), a first preheating tube row (4) and a second preheating tube row (5), wherein the operating table (2) is arranged on the frame (1), the electric heating box (3) is located in the frame (1) and below the operating table (2), the electric heating box (3) is connected to a power supply, the first preheating tube row (4) and the second preheating tube row (5) pass through the operating table (2) and are connected to the top of the electric heating box (3), and the height of the second preheating tube row (5) is lower than that of the first The height of the preheating cylinder row (4); the first preheating cylinder row (4) is located on the inner side of the operating table (2), and the second preheating cylinder row (5) is arranged adjacent to the outer side of the first preheating cylinder row (4); each preheating cylinder (A) of the first preheating cylinder row (4) and the second preheating cylinder row (5) has a cover (6) on the top; each preheating cylinder (A) of the first preheating cylinder row (4) and the second preheating cylinder row (5) is installed with a partition net (7) on the bottom; the left and right sides of the electric heating box (3) are both provided with air inlets (8).
2. The special preheating device for automobile vacuum tubes before molding according to claim 1, characterized in that: The number of air inlets (8) on the left and right sides of the electric heating box (3) is 2.
3. The special preheating device for automobile vacuum tubes before molding according to claim 1, characterized in that: The air inlet (8) cover is provided with a safety net (9).
4. The special preheating device for automobile vacuum tubes before molding according to claim 1, characterized in that: The electric heating box (3) is connected to the controller.
5. The special preheating device for automobile vacuum tubes before molding according to claim 1, characterized in that: The first preheating cylinder rows (4) are in two rows and are arranged in the middle of the operating table (2); the second preheating cylinder rows (5) are in two rows and are arranged on the outside of the two rows of first preheating cylinder rows (4).
6. The special preheating device for automobile vacuum tubes before molding according to claim 1, characterized in that: The four legs of the frame (1) are equipped with universal wheels (11).