Plastic uptake and punching integrated production line for automobile front wall

Abstract

The utility model relates to the technical field of automobile front wall processing, and discloses an automobile front wall plastic uptake and punching integrated production line which comprises a mounting frame, and a plurality of mounting positions are arranged on the mounting frame. The discharging platform is arranged at one end of the mounting frame, and the discharging platform is used for storing materials; the material grabbing mechanism is arranged on the mounting frame, and the material grabbing mechanism is in sliding connection with the mounting frame; the heating area is arranged at the other end of the mounting frame and used for heating the material, traditional radiation heating is adopted in the upper layer of the heating area, heating is partitioned, the heating temperature is set in a partitioned mode according to the use condition, a certain distance is kept between the heating area and the material to avoid adhesion, and the distance can be adjusted according to the use condition; the lower layer of the heating area is heated through the oil heating plate, the upper layer can be attached to an upper mesh belt of the feeding mechanism, the heat transfer efficiency is improved, the upper mesh belt is made of Teflon materials, adhesion of the materials and the oil heating plate is avoided, and the distance between the oil heating plate and the mesh belt is adjustable according to the use condition.

Description

Technical Field

[0001] This utility model belongs to the field of automotive front panel processing technology, specifically, it relates to an integrated production line for automotive front panel vacuum forming and punching. Background Technology

[0002] A document with publication number (CN103817946B) discloses a manufacturing process for a heat insulation pad for the front bulkhead of an automobile, which includes the following two processing steps: 1) Vacuum forming: EVA material is baked at high temperature, and the baked EVA material is placed on a vacuum forming mold for vacuum forming for 20-30 seconds to complete the production of the semi-finished part. After the EVA material is baked at high temperature, its surface temperature is 120°C-140°C. The baked EVA material is placed on a vacuum forming mold for vacuum forming, wherein the temperature of the vacuum forming mold is ≤40°C.

[0003] The above-mentioned device combines the subsequent processes with the foaming process, and uses a two-component sound-absorbing cotton pre-embedded molding process. Neither closed-mold foaming (foaming with boundary punching after mold closing) nor open-mold foaming will have the problem of sound-absorbing cotton blocking the holes; and by using pre-embedding, the foamed uncured raw materials are used for bonding, which has good bonding stability and does not have the problem of falling off due to inadequate bonding.

[0004] Currently, the manufacturing process for automotive front bulkhead sound insulation pads uses a vacuum forming followed by foaming method. The vacuum forming process often employs a heat radiation heating oven combined with semi-mold vacuum forming, resulting in low production efficiency. Furthermore, the molds lack edge-cutting capabilities, requiring manual trimming to remove waste material. Its disadvantages include:

[0005] 1. Simple thermal radiation heating has low efficiency due to long distance, long heating time, and uneven internal and external temperatures;

[0006] 2. Manual trimming and waste removal is inefficient, and the larger the part and the longer the edge, the lower the efficiency; moreover, the scrap rate of parts is high, and manual trimming cannot well control the edge consistency of the product, and improper operation can easily produce waste.

[0007] 3. Vacuum adsorption relies on the softening and natural drooping of the material edges, supplemented by manual pressing, to achieve a seal. This results in large waste edges, high material costs, and low waste recycling rates. Manual assistance also carries the risk of incomplete sealing, leading to improper vacuum forming and the scrapping of parts.

[0008] 4. During continuous production, the feeding mechanism needs to feed the previous piece of material onto the mold and then return it before feeding the next piece of material and then feeding it to the heating zone for heating, which results in a long feeding time.

[0009] In view of this, this utility model is hereby proposed. Utility Model Content

[0010] To solve the problem of uneven heating, the basic concept of the technical solution adopted by this utility model is as follows:

[0011] An integrated production line for vacuum forming and punching of automotive front fascia includes a mounting frame with multiple mounting positions; a material feeding platform located at one end of the mounting frame for storing materials; a material gripping mechanism mounted on the mounting frame and slidably connected to it; and a heating zone located at the other end of the mounting frame for heating the materials. The upper layer of the heating zone is a ceramic tile radiant heater, and the lower layer is a heating plate with a circulating oil circuit. A thermal oil furnace is located outside the heating zone, and the heating plate and the thermal oil furnace are connected by pipes to form a circulation loop.

[0012] In a preferred embodiment of this utility model, a hydraulic machine tool is provided at the other end of the heating zone, and a vacuum forming die is provided on the hydraulic machine tool. A vacuum pump is connected to the bottom end of the hydraulic machine tool through a pipe.

[0013] In a preferred embodiment of this utility model, a cylinder is provided between the hydraulic machine tool and the vacuum forming die. The cylinder is fixedly connected to the hydraulic machine tool, the vacuum forming die is fixedly connected to the output shaft of the cylinder, and the vacuum forming die is slidably connected to the hydraulic machine tool.

[0014] In a preferred embodiment of this utility model, a feeding mechanism is provided between the material gripping mechanism and the heating zone. The feeding mechanism is a mesh belt conveyor. An electric slide rail is installed between the material gripping mechanism and the mounting frame. The material gripping mechanism slides on the mounting frame via the electric slide rail.

[0015] In a preferred embodiment of this utility model, a telescopic motor is installed on the material gripping mechanism. The telescopic motor is fixedly connected to the material gripping mechanism. Multiple sets of suction cups are installed at the output end of the telescopic motor. Crossbars are installed between the suction cups and connected to each other by fasteners.

[0016] In a preferred embodiment of this utility model, an electrical control cabinet is provided outside the mounting frame, and the electrical control cabinet is electrically connected to the material gripping mechanism, heating zone, feeding mechanism, hydraulic machine tool, vacuum pump and heat transfer oil furnace.

[0017] In a preferred embodiment of the present invention, the inner side of the feeding mechanism is symmetrically provided with side plates, and the side plates are arranged in an array with abutting wheels, which are elastically connected to the side plates.

[0018] In a preferred embodiment of this utility model, the side plate is provided with an array of sliding grooves, and a spring is installed in the sliding groove. One end of the spring is fixedly connected to the sliding groove, and the other end of the spring is fixedly connected to the abutment wheel. The abutment wheel is slidably connected to the sliding groove.

[0019] Compared with the prior art, the present invention has the following advantages:

[0020] 1. This integrated production line for vacuum forming and punching of automotive front fascia features a heating zone where the upper layer uses traditional radiant heating, with separate zones for each zone. Heating temperatures are set according to usage, maintaining a certain distance from the material to prevent adhesion. This distance is adjustable. The lower layer uses oil-heated plates, which can be integrated with the feeding mechanism's mesh belt to improve heat transfer efficiency. The mesh belt is made of Teflon to prevent material adhesion to the oil-heated plates, and the distance between the oil-heated plates and the mesh belt is adjustable.

[0021] 2. This integrated production line for vacuum forming and punching of automotive front panels allows the next piece of material to be directly heated in the heating zone while the previous piece is being fed into the mold, saving the cycle time of the retraction drive and the feeding time compared to existing industry solutions.

[0022] 3. This integrated production line for vacuum forming and punching of automotive front panels features a cutting edge embedded 5-7mm outside the contour of the vacuum forming and punching mold. During mold closing, waste material is removed in one go, resulting in high efficiency, high recycling rate, accurate dimensions, and good consistency.

[0023] 4. This integrated production line for vacuum forming and punching of automotive front fascia has a sealing and pressing frame at the bottom of the vacuum forming and punching mold. When the mold is closed, the material sheet before vacuum forming can be pressed and sealed 10-20mm outside the product outline, saving material sheet size and providing better sealing.

[0024] 5. This integrated production line for vacuum forming and punching of automotive front fascia has crossbars connected by fasteners. By changing the position of the crossbars, the size of the material can be adapted to accommodate different materials.

[0025] 6. In this integrated production line for vacuum forming and punching of automotive front fascia, the symmetrically arranged abutment rollers in the feeding mechanism contact the material during feeding. The material pushes the abutment rollers outward, and the abutment rollers squeeze the springs and deform. The deformation of the springs generates an opposite force to push the abutment rollers to contact the material, thereby pushing the material to the center position of the device, so that the material is heated more evenly.

[0026] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0027] In the attached diagram:

[0028] Figure 1 This is a schematic diagram of the overall design of this utility model;

[0029] Figure 2 This is a schematic diagram of the hydraulic machine tool structure of this utility model;

[0030] Figure 3 This is a schematic diagram of the material gripping mechanism of this utility model;

[0031] Figure 4This is a schematic diagram of the internal structure of the heating zone of this utility model;

[0032] Figure 5 This is a schematic diagram of the structure on the side plate of this utility model.

[0033] In the diagram: 1. Feeding platform; 2. Gripping mechanism; 3. Feeding mechanism; 4. Heating zone; 5. Hydraulic machine tool; 6. Vacuum forming and punching mold; 7. Vacuum pump; 8. Thermal oil furnace; 9. Electrical control cabinet; 10. Side plate; 11. Abutment wheel. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model.

[0035] Please see Figure 1-5 An integrated production line for vacuum forming and punching of automotive front fascia includes a mounting frame with multiple mounting positions; a material feeding platform 1, located at one end of the mounting frame, for storing materials; a material gripping mechanism 2, mounted on the mounting frame and slidably connected to it; and a heating zone 4, located at the other end of the mounting frame, for heating the materials. The upper layer of the heating zone 4 is a ceramic tile radiant heater, and the lower layer is a heating plate with a circulating oil circuit. The heating zone 4 is externally equipped with… There is a thermal oil heater 8. The heating plate of the circulating oil circuit is connected to the thermal oil heater 8 through a pipe to form a circulation loop. The upper layer of the heating zone 4 adopts traditional radiation heating and is divided into zones. The heating temperature is set for each zone according to the usage. A certain distance is maintained between the heating plate and the material to avoid sticking. The distance can be adjusted according to the usage. The lower layer of the heating zone 4 adopts oil heating plate heating, which can be put into contact with the feeder belt to improve the heat transfer efficiency. The feeder belt is made of Teflon material to prevent the material from sticking to the oil heating plate. The distance between the oil heating plate and the feeder belt can be adjusted according to the usage.

[0036] At the other end of the heating zone 4, a hydraulic machine tool 5 is installed. A vacuum forming die 6 is mounted on the hydraulic machine tool 5. A vacuum pump 7 is connected to the bottom of the hydraulic machine tool 5 via a pipe. A cylinder is installed between the hydraulic machine tool 5 and the vacuum forming die 6, with the cylinder fixedly connected to the hydraulic machine tool 5 and the vacuum forming die 6 fixedly connected to the output shaft of the cylinder. The vacuum forming die 6 is slidably connected to the hydraulic machine tool 5. After the material in the heating zone 4 has been heated for the required time, the inner conveyor belt of the feeding mechanism 3 rotates, driving the heated material towards the hydraulic machine tool 5 until it reaches the set position. At this time, the material gripped a second time enters the heating zone 4, and the rotating conveyor belt throws the heated material onto the hydraulic machine tool 5. During this process, the material gripped a second time remains within the heating zone 4 and continues to be heated. Simultaneously, the hydraulic... The vacuum forming die 6 on the press 5 is raised and lowered by a cylinder and closely fits the material. The vacuum pump 7 is started, and the material is vacuum-formed within 2-5 seconds. The vacuum forming die 6 is pushed down by the output of the cylinder to close the die and cut the waste material, and holds the pressure for 35-70 seconds, which is adjustable. After the holding time is up, the vacuum forming die 6 is lifted by the cylinder to remove the parts and waste material from the die. The vacuum forming die 6 has a cutting edge embedded 5-7mm outside the outline. When the die is closed, the waste material is cut off in one go, which is efficient, has a high recycling rate, accurate dimensions, and good consistency. The bottom of the vacuum forming die 6 is equipped with a sealing and pressing frame. When the die is closed, the material sheet before vacuum forming can be pressed and sealed 10-20mm outside the outline of the product, which saves material sheet size and has better sealing performance.

[0037] A feeding mechanism 3 is provided between the material gripping mechanism 2 and the heating zone 4. The feeding mechanism 3 is a mesh belt conveyor, which is an existing mature technology and does not need to be disclosed, so it will not be described in detail here. An electric slide rail is installed between the material gripping mechanism 2 and the mounting frame. The material gripping mechanism 2 slides on the mounting frame via the electric slide rail. A telescopic motor is installed on the material gripping mechanism 2 and is fixedly connected to the material gripping mechanism 2. Multiple suction cups are installed at the output end of the telescopic motor. Crossbars are installed between the suction cups and are connected by fasteners, including but not limited to bolts. The telescopic motor on the material gripping mechanism 2 drives the crossbars and suction cups to lift and grip the material through the output end. The crossbars are connected by fasteners. By changing the position between the crossbars, the size of the material can be adapted to accommodate different materials. The material gripping mechanism 2 is moved to a suitable position on the feeding mechanism 3 via the electric slide rail.

[0038] The mounting frame is equipped with an electrical control cabinet 9, which is electrically connected to the material gripping mechanism 2, heating zone 4, feeding mechanism 3, hydraulic machine tool 5, vacuum pump 7 and thermal oil furnace 8. After the device is powered on, the electrical control cabinet 9 sets the temperature and speed of the device during operation.

[0039] The feeding mechanism 3 has symmetrically arranged side plates 10 on its inner side. The side plates 10 have arrayed abutment wheels 11, which are elastically connected to the side plates 10. The side plates 10 have arrayed grooves, and springs are installed in the grooves. One end of the spring is fixedly connected to the groove, and the other end of the spring is fixedly connected to the abutment wheel 11. The abutment wheel 11 is slidably connected to the groove. When feeding, the symmetrically arranged abutment wheels 11 in the feeding mechanism 3 come into contact with the material. The material pushes the abutment wheels 11 outward, and the abutment wheels 11 compress the spring and deform. The deformation of the spring generates an opposite force to push the abutment wheels 11 into contact with the material, thereby pushing the material to the center position of the device, so that the material is heated more evenly.

[0040] Working principle: After the device is powered on, the control cabinet 9 sets the operating temperature and speed. When the temperature in the heating zone 4 reaches the preset value, the telescopic motor on the material gripping mechanism 2 drives the crossbars and suction cups to lift and grip the material via its output end. The crossbars are connected by fasteners. By changing the position between the crossbars, the size of the material is adapted to accommodate different materials. The material gripping mechanism 2 is moved to a suitable position on the feeding mechanism 3 via an electric slide rail. The mesh belt on the feeding mechanism 3 rotates and transports the material into the heating zone 4. The upper layer of the heating zone 4 uses traditional radiant heating and is divided into zones according to usage. The heating temperature is set in zones, maintaining a certain distance from the material to prevent sticking. This distance is adjustable depending on the usage. The lower layer of heating zone 4 uses an oil-heated plate for heating, which can be brought into contact with the mesh belt of the feeding mechanism to improve heat transfer efficiency. The mesh belt is made of Teflon to prevent the material from sticking to the oil-heated plate, and the distance between the oil-heated plate and the mesh belt is adjustable depending on the usage. The material grabbing mechanism 2 grabs the material again and places it on the feeding mechanism 3 to await the next action. After the heating time in heating zone 4 is over, the mesh belt in the feeding mechanism 3 rotates, driving the heated material towards the hydraulic machine tool 5 until it reaches the set position. At this time, the material grabbed a second time enters the machine tool. Within heating zone 4, a rotating conveyor belt throws the heated material onto the hydraulic press 5. During this process, the material, which is gripped a second time, remains continuously heated within heating zone 4. Simultaneously, the vacuum forming die 6 on the hydraulic press 5 is raised and lowered by a cylinder, tightly fitting against the material. The vacuum pump 7 starts, and the material is vacuum-formed within 2-5 seconds. The vacuum forming die 6 is then pushed down by the cylinder's output shaft to close the die and cut the waste material, maintaining pressure for 35-70 seconds (adjustable). After the pressure time is up, the vacuum forming die 6 is lifted by the cylinder, removing the part and waste material from the die. The outer contour of the vacuum forming die 6 is 5- A cutting edge is embedded at 7mm, which removes waste material in one go when the mold is closed, resulting in high efficiency, high recycling rate, accurate dimensions, and good consistency. The bottom of the vacuum forming die 6 is equipped with a sealing and pressing frame, which can press and seal the material sheet 10-20mm outside the product outline when the mold is closed, saving material sheet size and providing better sealing. The abutment rollers 11 symmetrically arranged in the feeding mechanism 3 come into contact with the material during feeding. The material pushes the abutment rollers 11 outward, and the abutment rollers 11 squeeze the spring and deform. The deformation of the spring generates an opposite force to push the abutment rollers 11 into contact with the material, thereby pushing the material to the center position of the device, making the material heat up more evenly.

[0041] It is understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of this utility model.

Claims

1. A production line for integrated vacuum forming and punching of automotive front fascia, characterized in that, include: The mounting rack has multiple mounting positions. Material feeding platform (1) is set at one end of the mounting frame and is used to store materials; The material gripping mechanism (2) is mounted on the mounting frame and is slidably connected to the mounting frame. Heating zone (4) is located at the other end of the mounting frame. Heating zone (4) is used to heat the material. The upper layer of heating zone (4) is a ceramic tile radiant heater. The lower layer of heating zone (4) is a heating plate of circulating oil circuit. A thermal oil furnace (8) is provided outside heating zone (4). The heating plate of circulating oil circuit and thermal oil furnace (8) are connected by pipes to form a circulating loop.

2. The integrated vacuum forming and punching production line for automotive front fascia according to claim 1, characterized in that, A hydraulic machine tool (5) is provided at the other end of the heating zone (4). A vacuum forming die (6) is provided on the hydraulic machine tool (5). A vacuum pump (7) is connected to the bottom of the hydraulic machine tool (5) through a pipe.

3. The integrated vacuum forming and punching production line for automotive front fascia according to claim 2, characterized in that, A cylinder is provided between the hydraulic machine tool (5) and the vacuum forming die (6). The cylinder is fixedly connected to the hydraulic machine tool (5), the vacuum forming die (6) is fixedly connected to the output shaft of the cylinder, and the vacuum forming die (6) is slidably connected to the hydraulic machine tool (5).

4. The integrated vacuum forming and punching production line for automotive front fascia according to claim 1, characterized in that, A feeding mechanism (3) is provided between the material gripping mechanism (2) and the heating zone (4). The feeding mechanism (3) is a mesh belt conveyor. An electric slide rail is installed between the material gripping mechanism (2) and the mounting frame. The material gripping mechanism (2) slides on the mounting frame via the electric slide rail.

5. The integrated vacuum forming and punching production line for automotive front fascia according to claim 1, characterized in that, The material gripping mechanism (2) is equipped with a telescopic motor, which is fixedly connected to the material gripping mechanism (2). Multiple suction cups are installed at the output end of the telescopic motor, and crossbars are installed between the suction cups. The crossbars are connected by fasteners.

6. The integrated vacuum forming and punching production line for automotive front fascia according to claim 1, characterized in that, An electrical control cabinet (9) is installed outside the mounting frame. The electrical control cabinet (9) is electrically connected to the material gripping mechanism (2), the heating zone (4), the feeding mechanism (3), the hydraulic machine tool (5), the vacuum pump (7), and the thermal oil furnace (8).

7. The integrated vacuum forming and punching production line for automotive front fascia according to claim 4, characterized in that, The feeding mechanism (3) has symmetrically arranged side plates (10) on its inner side, and abutment wheels (11) are arranged in an array inside the side plates (10). The abutment wheels (11) are elastically connected to the side plates (10).

8. The integrated vacuum forming and punching production line for automotive front fascia according to claim 7, characterized in that, The side plate (10) is provided with an array of sliding grooves, and a spring is installed in the sliding groove. One end of the spring is fixedly connected to the sliding groove, and the other end of the spring is fixedly connected to the abutment wheel (11). The abutment wheel (11) is slidably connected to the sliding groove.

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