High-frequency heat sealing machine for producing automobile sun visor

Abstract

The utility model discloses a high-frequency heat sealing machine for producing an automobile sun shield, which relates to the technical field of automobile manufacturing and comprises a base, a continuous processing unit and an automatic clamping unit, and the continuous processing unit comprises a vertical column, a motor, a cross wheel carrier, a storage rack, a rubber strip, a hydraulic cylinder and a heat sealing press block. Through the arrangement of the motor and the cross-shaped wheel frame, materials to be machined can be driven to sequentially rotate to the lower side of the heat sealing pressing block for heat sealing machining, and under the action of the cross-shaped wheel frame, machined products can be conveniently taken down from the outer side, and new materials to be machined are supplemented; under the action of a photoelectric sensor, a positioning effect can be achieved, and it is ensured that the storage rack comes to the position under the heat sealing pressing block; and a reliable automatic clamping unit is arranged, the movable clamping rods on the two sides can be gradually close to each other and tend to be vertical along with the in-place of the storage rack, the upper ends of the two movable clamping rods penetrate through the notches in the two sides of the storage rack, and the workpiece is automatically clamped and fixed.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile manufacturing, specifically to a high-frequency heat sealing machine for automobile sun visor production. BACKGROUND

[0002] The automobile sun visor is installed above the main and vice drivers in the car and is a practical device for blocking sunlight. It is generally made of an internal board core and an external packaging material through heat sealing method. Heat sealing is a technology for connecting materials through heating and pressing, which is widely used in the field of automobile parts production. With the continuous development of the automobile manufacturing industry, the demand for sun visor parts is also increasing, so a reliable high-frequency heat sealing machine is needed.

[0003] The existing high-frequency heat sealing machine for automobile sun visor production cannot realize continuous processing, has a long production interval, and results in low production efficiency. Moreover, it lacks an automatic and convenient clamping device, which requires special handling of the clamping components during processing and also reduces production efficiency. Therefore, we propose a high-frequency heat sealing machine for automobile sun visor production. UTILITY MODEL CONTENTS

[0004] The utility model solves the technical problem of overcoming the existing defects and provides a high-frequency heat sealing machine for automobile sun visor production. Through the setting of the motor and the cross roller frame, the material to be processed can be rotated in turn under the heat sealing block for heat sealing processing. Under the action of the cross roller frame, it is convenient to take out the processed products on the outside and supplement new materials to be processed. Under the action of the photoelectric sensor, it can play a positioning role to ensure that the shelf is directly below the heat sealing block. It has a reliable automatic clamping unit. With the positioning of the shelf, the movable clamping rods on both sides will gradually close and tend to be vertical. The upper ends of the two movable clamping rods pass through the slots on both sides of the shelf, automatically clamping and fixing the workpiece, which can effectively solve the problems in the background technology.

[0005] To achieve the above purpose, the utility model provides the following technical scheme: a high-frequency heat sealing machine for automobile sun visor production, comprising a base, a continuous processing unit and an automatic clamping unit.

[0006] The base is a square plate body, and an L-shaped mounting bracket is fixedly connected to the upper side of the rear end.

[0007] The continuous processing unit comprises a vertical column, a motor, a cross roller frame, a storage rack, a rubber strip, a hydraulic cylinder and a hot pressing block, the vertical column is fixedly connected to the front position of the upper end of the base, the upper end of the vertical column is fixedly installed with the motor, the output shaft of the motor faces upward and is fixedly connected to the central part of the cross roller frame, each end of the cross roller frame is fixedly connected with a inverted trapezoidal storage rack, the upper end of the storage rack is in the shape of an I-beam, and a rubber strip is fixedly connected to the end face, a hydraulic cylinder is installed at the front position of the upper horizontal end of the mounting bracket, the extension end of the hydraulic cylinder faces downward, and a hot pressing block is installed at the lower end, a high-frequency generator is installed in the hot pressing block, and a controller is installed outside the motor;

[0008] The automatic clamping unit is installed between the mounting bracket and the vertical column.

[0009] The motor is used to drive the cross roller frame to rotate, each end of the cross roller frame is installed with a storage rack, thereby providing multiple workstations for placing the raw materials of the sunshade board, and the rubber strip can prevent the materials from falling off during transportation; under the driving of the motor, the storage rack loaded with the workpiece moves to the lower side of the hot pressing block, the hydraulic cylinder pushes the hot pressing block to press down, and the materials are hot-processed; after the processing of one material is completed, the next material to be processed is immediately in place as the product is removed, thereby realizing the continuous hot-pressing processing of the sunshade board; after the product is removed, the product can be taken out from the left side, and the raw materials for processing can be supplemented from the front side, thereby further improving the continuity of processing.

[0010] Further, the continuous processing unit further comprises a photoelectric sensor and a receiver, one photoelectric sensor is embedded and installed in each rod body of the cross roller frame, the emitting end of the photoelectric sensor vertically faces downward, and the receiver is embedded and installed at the middle rear position of the upper end of the vertical column. The receiver is used to receive the emission signal of the photoelectric sensor, when the receiver receives the signal of one of the photoelectric sensors, it indicates that the storage rack is directly below the hot pressing block, then a signal can be sent to the motor controller, the controller controls the motor to stop rotating, and controls the motor to restart after the hot-pressing processing is completed.

[0011] Further, the automatic clamping unit comprises a fixed support, a lifting support, a top block, a main slide rod and a spring one, the upper end of the base is fixed with the fixed support at the position between the mounting frame and the vertical column, the upper end of the fixed support is provided with the lifting support, the upper end of the lifting support is embedded with the top block, the left and right sides of the upper end of the top block are provided with chamfers, the lower end of the top block is fixedly connected with the lifting support through bolts, the upper end of the lifting support is fixedly connected with the main slide rod, the upper end of the main slide rod is slidably connected in the inside of the lifting support, and the outside of the main slide rod is sleeved with the spring one, and the upper and lower ends of the spring one are abutted on the opposite side of the fixed support and the lifting support. The main slide rod is used for realizing the sliding connection between the lifting support and the fixed support, when the storage rack gradually approaches the top block, the bottom chamfer structure of the storage rack is matched with the upper end chamfer of the top block, and under the continuous extrusion of the storage rack, the top block pushes the lifting support to gradually move downward, and the spring one provides the lifting support with a upward resetting supporting effect.

[0012] Further, the automatic clamping unit further comprises an auxiliary slide rod, a mounting clamp block, a movable clamp rod and a limiting clamp frame, the left and right sides of the main slide rod are provided with the auxiliary slide rod, the lower end of the two auxiliary slide rods is fixedly connected with the fixed support, and the upper end of the two auxiliary slide rods is slidably connected with the lifting support, the lower position of the left and right sides of the lifting support is fixedly connected with a group of mounting clamp blocks, each group of mounting clamp blocks is rotatably connected with a movable clamp rod through a shaft body, the lower end of the movable clamp rod is rotatably connected with the mounting clamp block, and the rear end of the fixed support is fixedly connected with the limiting clamp frame, the limiting clamp frame is an F-shaped structure arranged horizontally, a round corner structure is formed on the upper side of the clamping port end of the F-shaped limiting clamp frame, and the clamping port end of the F-shaped limiting clamp frame is buckled on the outside of the movable clamp rod. When the lifting support moves downward, the movable clamp rods on the left and right sides move downward, the limiting clamp frame is used for clamping the movable clamp rods, and the round corner structure at the clamping port position can make the movable clamp rods on the left and right sides gradually close and tend to be vertical when moving downward, the upper end of the two movable clamp rods passes through the slot on the side of the storage rack, and the workpiece is clamped and fixed.

[0013] The automatic clamping unit further comprises a telescopic rod, a spring two, a top ball and a rubber block, the upper position of the left and right sides of the lifting support is provided with an installation hole horizontally outward, the inside of the hole is fixedly connected with the telescopic rod, the telescopic rod extends outward, and the end is fixedly connected with the top ball, the outside of the telescopic rod is sleeved with the spring two, and the inside of the upper end of the movable clamp rod is fixedly connected with the rubber block. The telescopic rod is used for installing the spring two and the top ball, under the action of the spring two, the top ball can exert an outward pushing force on the movable clamp rod, so that after the lifting support is reset upward, the two movable clamp rods can be automatically opened outward under the action of the spring force, thereby avoiding affecting the rotation of the cross roller frame and the passing of the storage rack, and the rubber block can increase the friction force with the workpiece through stress deformation, thereby improving the stability of clamping.

[0014] Further, it further includes a rib plate and a fixed seat, the lower end of the fixed support is fixedly connected with a square fixed seat, a rib plate is fixedly connected with both sides of the corner of the fixed support and the fixed seat, and the fixed seat is fixedly connected with the base through bolts at four corner positions. The rib plate can improve the stability of the connection between the fixed support and the fixed seat, and the fixed seat can be fixed by installing bolts on the four sides of the fixed seat.

[0015] Compared with the prior art, the automobile sun visor production high-frequency heat sealing machine has the following advantages:

[0016] 1. Through the setting of the motor and the cross roller frame, the to-be-processed material can be sequentially rotated to the lower side of the heat sealing pressing block for heat sealing processing, and under the action of the cross roller frame, the processed product can be conveniently taken out from the outside and new to-be-processed material can be supplemented; under the action of the photoelectric sensor, the positioning effect can be achieved to ensure that the storage rack comes directly below the heat sealing pressing block.

[0017] 2. The automatic clamping unit is reliable, and when the storage rack is in place, the bottom chamfer structure of the storage rack and the upper end chamfer of the top block are mutually fitted and continuously extrude the top block, the top block drives the lifting column to gradually move downward, when the lifting column moves downward, the movable clamping rods on both sides move downward, the limiting clamping frame is used for clamping and blocking the movable clamping rods, and the round corner structure at the clamping port position can make the movable clamping rods on both sides gradually close and tend to be vertical when moving downward, the upper ends of the two movable clamping rods pass through the notches on both sides of the storage rack to realize clamping and fixing of the workpiece.

[0018] 3. Through the setting of the motor and the cross roller frame, the to-be-processed material can be sequentially rotated to the lower side of the heat sealing pressing block for heat sealing processing, and under the action of the cross roller frame, the processed product can be conveniently taken out from the outside and new to-be-processed material can be supplemented; under the action of the photoelectric sensor, the positioning effect can be achieved to ensure that the storage rack comes directly below the heat sealing pressing block; and the automatic clamping unit is reliable, and when the storage rack is in place, the movable clamping rods on both sides will gradually close and tend to be vertical, the upper ends of the two movable clamping rods pass through the notches on both sides of the storage rack to automatically realize clamping and fixing of the workpiece. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a structure schematic view of the utility model;

[0020] Figure 2 It is a structure schematic view of the utility model left side;

[0021] Figure 3 It is a structure schematic view of the automatic clamping unit in the utility model;

[0022] Figure 4 It is a structure schematic view of the utility modelFigure 2 Structure enlarged view at middle A;

[0023] Figure 5 It is the structure schematic view of the limiting card frame in the utility model.

[0024] In the figure: 1 base, 2 mounting frame, 3 continuous processing unit, 31 vertical column, 32 motor, 33 cross roller frame, 34 storage rack, 35 rubber strip, 36 hydraulic cylinder, 37 heat sealing pressure block, 38 photoelectric sensor, 39 receiver, 4 automatic clamping unit, 41 fixed support column, 42 lifting support column, 43 top block, 44 main slide rod, 45 spring one, 46 auxiliary slide rod, 47 mounting clamp block, 48 movable clamping rod, 49 limiting card frame, 410 telescopic rod, 411 spring two, 412 top ball, 413 rubber block, 5 rib plate, 6 fixed seat. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0026] Please refer to Figures 1-5 The embodiment provides a technical scheme: a high-frequency heat sealing machine for automobile sun visor production, which comprises a base 1, a continuous processing unit 3 and an automatic clamping unit 4.

[0027] The base 1 is a square plate body, and an L-shaped mounting frame 2 is fixedly connected to the upper side of the rear end of the base 1.

[0028] The continuous processing unit 3 comprises a vertical column 31, a motor 32, a cross roller frame 33, a storage rack 34, a rubber strip 35, a hydraulic cylinder 36 and a heat sealing pressure block 37. The vertical column 31 is fixedly connected to the front position of the upper end of the base 1. The motor 32 is fixedly installed at the upper end of the vertical column 31. The output shaft of the motor 32 faces upwards and is fixedly connected to the center part of the cross roller frame 33. Each of the four end parts of the cross roller frame 33 is fixedly connected to a reversed trapezoidal storage rack 34. The upper end of the storage rack 34 is in an I-shaped structure, and the rubber strip 35 is fixedly connected to the end face. The hydraulic cylinder 36 is installed at the front position of the horizontal end of the upper side of the mounting frame 2. The telescopic end of the hydraulic cylinder 36 faces downwards, and the heat sealing pressure block 37 is installed at the lower end. The high-frequency generator is installed in the heat sealing pressure block 37. The controller is installed at the outer side of the motor 32.

[0029] The automatic clamping unit 4 is installed between the mounting frame 2 and the vertical column 31.

[0030] The motor 32 is used to drive the cross roller frame 33 to rotate, and each end of the cross roller frame 33 is provided with a rack 34, thereby providing multiple work stations for placing the raw materials of the sunshade board, and the rubber strip can prevent the materials from falling during the conveying process; under the driving of the motor 32, the rack 34 provided with the workpiece is moved to the lower side of the hot-pressing block 37, the hydraulic cylinder 36 pushes the hot-pressing block 37 to press downward, and the materials are subjected to hot-pressing processing; when the processing of one material is completed, the next material to be processed is immediately positioned as the product is removed, thereby realizing the continuous hot-pressing processing of the sunshade board; after the product is removed, the product can be taken out from the left side, and the raw materials for processing can be supplemented from the front side, thereby further improving the continuity of the processing.

[0031] The continuous processing unit 3 further comprises a photoelectric sensor 38 and a receiver 39, and each section of the rod body of the cross roller frame 33 is embedded with the photoelectric sensor 38, the emitting end of the photoelectric sensor 38 is vertically downward, and the receiver 39 is embedded and installed at the middle rear position of the upper end of the vertical column 31. The receiver 39 is used to receive the emission signal of the photoelectric sensor 38, and when the receiver 39 receives the signal of one of the photoelectric sensors 38, it indicates that the rack 34 is directly below the hot-pressing block 37, and then a signal can be sent to the motor controller, the controller controls the motor to stop, and controls the motor to restart after the hot-pressing processing is completed.

[0032] The automatic clamping unit 4 comprises a fixed support 41, a lifting support 42, a top block 43, a main sliding rod 44 and a spring 45, the fixed support 41 is fixedly installed at the upper end of the base 1 and between the mounting frame 2 and the vertical column 31, the lifting support 42 is arranged above the fixed support 41, the top block 43 is embedded and installed at the upper end of the lifting support 42, the left and right sides of the upper end of the top block 43 are provided with chamfers, the lower end of the top block 43 is fixedly connected with the lifting support 42 through bolts, the vertical main sliding rod 44 is fixedly connected at the middle position of the upper end of the fixed support 41, the upper end of the main sliding rod 44 is slidingly connected in the inside of the lifting support 42, and the spring 45 is sleeved outside the main sliding rod 44, and the upper and lower ends of the spring 45 are abutted against the opposite sides of the fixed support 41 and the lifting support 42. The main sliding rod 44 is used to realize the sliding connection between the lifting support 42 and the fixed support 41, when the rack 34 gradually approaches the top block 43, the bottom chamfer structure of the rack 34 is matched with the upper end chamfer of the top block 43, and under the continuous extrusion of the rack 34, the top block 43 pushes the lifting support 42 to gradually move downward, and the spring 45 provides the lifting support 42 with a upward resetting supporting effect.

[0033] The automatic clamping unit 4 further comprises an auxiliary sliding rod 46, a mounting clamp block 47, a movable clamping rod 48 and a limiting clamping frame 49. The left and right sides of the main sliding rod 44 are provided with the auxiliary sliding rod 46. The lower ends of the two auxiliary sliding rods 46 are fixedly connected with the fixed support 41. The upper ends of the two auxiliary sliding rods 46 are slidably connected with the lifting support 42. A group of mounting clamp blocks 47 are fixedly connected to the lower positions on the left and right sides of the lifting support 42. Each group of mounting clamp blocks 47 is rotatably connected with a movable clamping rod 48 through a shaft. The lower end of the movable clamping rod 48 is rotatably connected with the mounting clamp block 47. The rear end of the fixed support 41 is fixedly connected with two limiting clamping frames 49. The limiting clamping frame 49 is horizontally arranged in an F-shaped structure. A rounded structure is formed on the upper side of the clamping opening of the F-shaped limiting clamping frame 49. The clamping opening of the F-shaped limiting clamping frame 49 is buckled on the outer side of the movable clamping rod 48. When the lifting support 42 moves downward, the movable clamping rods 48 on the left and right sides will move downward. The limiting clamping frame 49 is used for clamping the movable clamping rod 48. The rounded structure at the clamping opening position can make the movable clamping rods 48 on the left and right sides gradually close together and tend to be vertical when moving downward. The upper ends of the two movable clamping rods 48 pass through the notches on the left and right sides of the storage rack 34 and clamp and fix the workpiece.

[0034] The automatic clamping unit 4 further comprises a telescopic rod 410, a spring 411, a top ball 412 and a rubber block 413. A horizontally outward mounting hole is formed on the upper position on the left and right sides of the lifting support 42. The inside of the hole is fixedly connected with the telescopic rod 410. The telescopic rod 410 extends outward and is fixedly connected with the top ball 412 at the end. The outer side of the telescopic rod 410 is sleeved with the spring 411. The rubber block 413 is fixedly installed on the inner side of the upper end of the movable clamping rod 48. The telescopic rod 410 is used for installing the spring 411 and the top ball 412. Under the action of the spring 411, the top ball 412 can exert an outward force on the movable clamping rod 48. Therefore, after the lifting support 42 is reset upward, the two movable clamping rods 48 can automatically open outward under the action of the spring force, thereby avoiding affecting the rotation of the cross roller frame 33 and the passing of the storage rack 34. The rubber block 413 can increase the friction force with the workpiece through stress deformation, thereby improving the stability of clamping.

[0035] Further comprising a rib plate 5 and a fixed seat 6. The lower end of the fixed support 41 is fixedly connected with a square fixed seat 6. The two side corners where the fixed support 41 and the fixed seat 6 are connected are fixedly connected with a rib plate 5. The fixed seat 6 is fixedly connected with the base 1 through the bolts at the four corner positions. The rib plate 5 can improve the stability of the connection between the fixed support 41 and the fixed seat 6. The fixed seat 6 can be fixed by installing bolts on the four sides.

[0036] The utility model provides a kind of automobile sun visor production high-frequency heat sealing machine's working principle as follows: the equipment has reliable continuous processing unit 3, motor 32 is used to drive cross roller frame 33 to rotate, four end portions of cross roller frame 33 are all equipped with one storage rack 34, to provide multiple work stations of placing sun visor raw material;Under the driving of motor 32, the storage rack 34 equipped with workpiece moves to the downside of heat sealing pressure block 37, hydraulic cylinder 36 pushes heat sealing pressure block 37 and presses down, and material is heat sealed and processed;When one material processing is completed, with the removal of product, the next material to be processed is immediately in position, so that the continuous heat sealing processing of sun visor is realized;After product removal, product can be taken out on the left side, and raw material for replacement processing can be supplemented on the front side, to further improve the continuity of processing;Receiver 39 is used to receive the emission signal of photoelectric sensor 38, when receiver 39 receives the signal of one of photoelectric sensor 38, it indicates that storage rack 34 comes to the just below heat sealing pressure block 37, then signal can be sent to motor controller, controller controls motor to stop, and after completing heat sealing processing, controller controls motor to restart.The equipment also has reliable automatic clamping unit 4, can be with the arrival of storage rack 34, automatically play the effect of holding workpiece: main slide bar 44 is used to realize the sliding connection between lifting column 42 and fixed column 41, when storage rack 34 gradually approaches top block 43, the bottom chamfer structure thereof and the upper end chamfer of top block 43 mutually fit, and under the continuous extrusion of storage rack 34, top block 43 pushes lifting column 42 to gradually move down, spring one 45 provides lifting column 42 with a upward reset supporting effect;When lifting column 42 moves down, it will drive the two sides movable clamp rod 48 to move down, limit card holder 49 is used to play the blocking effect to movable clamp rod 48, and the round corner structure of its card mouth position can make the two sides movable clamp rod 48 gradually close and tend to be vertical when moving down, the upper end of two movable clamp rods 48 passes through the slot of both sides of storage rack 34, and clamps and fixes workpiece;Extension rod 410 is used for the installation of spring two 411 and top ball 412, under the action of spring two 411, top ball 412 can exert an outward pushing force on movable clamp rod 48, so that after lifting column 42 resets upward, two movable clamp rods 48 can automatically open outward under the action of spring bearing force, so as to avoid affecting the rotation of cross roller frame 33 and the passing of storage rack 34, rubber block 413 can increase the friction force with workpiece by stress deformation, to further improve the stability of clamping.In addition, rib plate 5 can improve the stability of connection between fixed column 41 and fixed seat 6, by adding bolts on four sides of fixed seat 6, fixed seat 6 can be fixed.

[0037] It is worth noting that the input end of motor 32 and hydraulic cylinder 36 disclosed in the above embodiment is electrically connected with the output end of external power supply through controller, receiver 39 is bidirectionally electrically connected with controller, and controller controls the working of motor 32 and hydraulic cylinder 36 adopts the method commonly used in prior art.

[0038] The above merely describes the embodiments of the present application, and does not limit the patent scope of the present application, and any equivalent structure or equivalent process transformation, or direct or indirect application in other related technical fields, which are made by using the content of the present application specification and drawings, are also included in the patent protection scope of the present application.

Claims

1. A high-frequency heat sealing machine for producing automotive sun visors, characterized in that: It includes a base (1), a continuous processing unit (3), and an automatic clamping unit (4); Base (1): It is a square plate with an L-shaped mounting bracket (2) fixedly connected to the upper rear end; Continuous processing unit (3): includes a vertical column (31), a motor (32), a cross wheel frame (33), a shelf (34), a rubber strip (35), a hydraulic cylinder (36), and a heat-sealing block (37). The vertical column (31) is fixedly connected to the front position of the upper end of the base (1). The motor (32) is installed and fixedly mounted on the upper end of the vertical column (31). The output shaft of the motor (32) faces upward and is fixedly connected to the center of the cross wheel frame (33). A trapezoidal shelf (34) is fixedly connected to each of the four ends of the 33). The upper end of the shelf (34) is an I-shaped structure, and a rubber strip (35) is fixedly connected to the end face. A hydraulic cylinder (36) is installed at the front position of the upper horizontal end of the mounting frame (2). The telescopic end of the hydraulic cylinder (36) faces downward, and a heat sealing block (37) is installed at the lower end. A high frequency generator is installed inside the heat sealing block (37), and a controller is installed on the outside of the motor (32). Automatic clamping unit (4): installed between the mounting bracket (2) and the vertical column (31).

2. The high-frequency heat sealing machine for producing automotive sun visors according to claim 1, characterized in that: The continuous processing unit (3) also includes a photoelectric sensor (38) and a receiver (39). Each section of the cross wheel frame (33) is fitted with a photoelectric sensor (38). The transmitting end of the photoelectric sensor (38) is vertically downward. The receiver (39) is fitted at the middle rear position of the upper end of the vertical column (31).

3. The high-frequency heat sealing machine for producing automotive sun visors according to claim 1, characterized in that: The automatic clamping unit (4) includes a fixed support column (41), a lifting support column (42), a top block (43), a main slide rod (44), and a spring (45). The fixed support column (41) is installed and fixed at the upper end of the base (1) and at the position between the mounting frame (2) and the vertical column (31). The lifting support column (42) is provided above the fixed support column (41). The top block (43) is embedded in the upper end of the lifting support column (42). The left and right sides of the upper end of the top block (43) are chamfered. The lower end of the top block (43) is fixedly connected to the lifting support column (42) by bolts. The vertical main slide rod (44) is fixedly connected at the middle position of the upper end of the fixed support column (41). The upper end of the main slide rod (44) is slidably connected inside the lifting support column (42). A spring (45) is sleeved on the outside of the main slide rod (44). The upper and lower ends of the spring (45) press against the opposite side of the fixed support column (41) and the lifting support column (42).

4. A high-frequency heat sealing machine for producing automotive sun visors according to claim 3, characterized in that: The automatic clamping unit (4) also includes auxiliary slide rods (46), mounting blocks (47), movable clamping rods (48), and limiting brackets (49). Auxiliary slide rods (46) are provided on the left and right sides of the main slide rod (44). The lower ends of the two auxiliary slide rods (46) are fixedly connected to the fixed support column (41), and the upper ends of the two auxiliary slide rods (46) are slidably connected to the lifting support column (42). A set of mounting blocks is fixedly connected to the lower positions on both the left and right sides of the lifting support column (42). 47) Each set of mounting clamps (47) is rotatably connected to a movable clamping rod (48) via a shaft. The lower end of the movable clamping rod (48) is rotatably connected to the mounting clamp (47). The rear end of the fixed support column (41) is fixedly connected to two left and right limit brackets (49). The limit brackets (49) are horizontally arranged F-shaped structures. A rounded corner structure is provided on the upper side of the slot end of the F-shaped limit bracket (49). The slot end of the F-shaped limit bracket (49) is fastened to the outside of the movable clamping rod (48).

5. A high-frequency heat sealing machine for producing automotive sun visors according to claim 4, characterized in that: The automatic clamping unit (4) also includes a telescopic rod (410), a second spring (411), a top ball (412), and a rubber block (413). The upper part of both sides of the lifting support column (42) is provided with a horizontally outward mounting hole. The telescopic rod (410) is fixedly connected inside the hole. The telescopic rod (410) extends outward and is fixedly connected to the top ball (412) at the end. The second spring (411) is sleeved on the outside of the telescopic rod (410). The rubber block (413) is fixedly installed on the inward side of the upper end of the movable clamping rod (48).

6. A high-frequency heat sealing machine for producing automotive sun visors according to claim 3, characterized in that: It also includes ribs (5) and fixing seats (6). The lower end of the fixing column (41) is fixedly connected to a square fixing seat (6). A rib (5) is fixedly connected to both corners where the fixing column (41) and the fixing seat (6) meet. The fixing seat (6) is fixedly connected to the base (1) by bolts at the four corners.

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