Dust screen cloth hot melting connecting device for automobile sound equipment loudspeaker

Abstract

The utility model discloses a dust screen cloth hot melting connection device for an automobile sound equipment horn, which relates to the technical field of dust screen cloth hot melting connection for the automobile sound equipment horn, and comprises four guide rods which are uniformly distributed and fixedly arranged at four corners in a support frame; the connecting plate is fixedly arranged on the outer wall face of the hot melting jig in a sleeving mode, a sliding guide block is fixedly installed on the front wall face of the connecting plate, and an auxiliary inclination angle is formed in the front wall face of the sliding guide block; the two sides of the protection frame are elastically connected with the inner side wall of the supporting frame, and the protection frame is in sliding fit with the auxiliary inclination angle; the hot melting jig is in linkage with the connecting plate and the sliding guide block, the auxiliary inclination angle of the hot melting jig is in sliding fit with the protective frame, and the protective frame is driven to be automatically opened and closed through the cooperation of the reset spring, so that the safety problems that protection is not available and mistaken touch is prone to happening are solved through the mode that the hot melting jig is in linkage with the connecting plate and the sliding guide block, the auxiliary inclination angle of the hot melting jig is in sliding fit with the protective frame, and the protective frame is driven to be automatically opened and closed.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile sound horn dustproof screen cloth hot melt connection, specifically to a kind of automobile sound horn dustproof screen cloth hot melt connection device. BACKGROUND

[0002] The automobile sound horn dustproof screen cloth welding tool is a special equipment for horn assembly, adopts insulation high-temperature base to match accurate positioning mould, integrates high-temperature welding head and pneumatic pressing mechanism, can quickly position screen cloth and horn basin frame, welding pressure and time are accurately adjustable, avoids screen cloth wrinkle or false welding, adapts to multiple specifications of horn size, supports batch operation, greatly improves welding consistency and assembly efficiency, is the key auxiliary equipment for sound horn mass production;

[0003] As the utility model discloses a kind of automobile sound horn dustproof screen cloth welding tool with announcement number CN208593089U, including base, guide rod, control console, cylinder, air pressure adjusting device, cylinder lifting rod, limit sleeve, table plate, sliding guide sleeve, hot melt fixture, product positioning fixture and clamping device, the cylinder lifting rod lower end is fixedly connected with the table plate, the four corners of the table plate are packaged together with the guide rod sleeve by the sliding guide sleeve, the hot melt fixture is fixedly installed on the lower end surface of the table plate;The product positioning fixture is fixedly installed on the base by the clamping device, the utility model can realize the quick and accurate welding screen cloth of automobile sound horn;

[0004] However, this tool has the following shortcomings:

[0005] Without automatic protection structure, hot melt fixture high temperature is prone to cause operator to be touched, and safety hazard is big;

[0006] Feeding positioning fixture is fixed by clamping device, and disassembly and assembly are complicated, and different model horns are adapted with low efficiency in change type;

[0007] Hot melt fixture is only driven by cylinder lifting rod, and the stability is insufficient in pressing process, so as to affect welding quality. UTILITY MODEL CONTENTS

[0008] In view of the deficiencies of the prior art, the utility model provides a kind of automobile sound horn dustproof screen cloth hot melt connection device, solve the technical problems that the existing device is without automatic protection structure, hot melt fixture high temperature is prone to cause operator to be touched, and safety hazard is big;Feeding positioning fixture is fixed by clamping device, and disassembly and assembly are complicated, and different model horns are adapted with low efficiency in change type;Hot melt fixture is only driven by cylinder lifting rod, and the stability is insufficient in pressing process, so as to affect welding quality.

[0009] To achieve the above object, the utility model is realized by the following technical scheme:

[0010] The application discloses a hot melting connecting device for a dustproof screen cloth of an automobile sound horn.

[0011] Four guide rods are uniformly distributed and fixedly installed at four corners in the support frame;

[0012] The connecting plate is fixedly sleeved on the outer wall surface of the hot melting jig, the front wall surface of the connecting plate is fixedly installed with a sliding guide block, and the front wall surface of the sliding guide block is provided with an auxiliary inclination angle;

[0013] The protection frame is elastically connected to the inner side walls of the support frame on both sides and is slidably matched with the auxiliary inclination angle;

[0014] The upper feeding table is slidably connected to the lower wall surface of the operation table and is adaptively connected to the operation table.

[0015] Preferably, the inner side walls of the support frame are provided with sliding grooves, the two side walls of the protection frame are fixedly installed with sliding blocks, the sliding blocks are slidably matched with the sliding grooves, the rear wall surface of the sliding block is fixedly installed with a spring limiting rod, a return spring is sleeved on the spring limiting rod, one end of the return spring is fixedly connected to the sliding block, and the other end is fixed to the inner bottom wall of the sliding groove.

[0016] Preferably, the top wall surface of the operation table is provided with two guide dovetail grooves extending in the width direction, the lower wall surface of the upper feeding table is fixedly installed with two trapezoidal guide blocks, and the trapezoidal guide blocks are slidably matched with the guide dovetail grooves.

[0017] Preferably, a stepped guide hole is formed in the center of the upper feeding table, a stepped pin is slidably connected in the stepped guide hole, and a ball is rotatably connected to the bottom of the stepped pin; and a limiting spring is fixedly installed between the top wall of the stepped guide hole and the upper wall surface of the stepped pin.

[0018] Preferably, the top wall surface of the operation table is provided with a guide groove, the guide groove is adaptively connected to the stepped pin, an electric push rod is fixedly arranged in the guide groove, and the electric push rod is correspondingly arranged at the lower end of the stepped pin.

[0019] Preferably, four sliding sleeves are fixedly installed in the connecting plate, the sliding sleeves are slidably matched with the four guide rods in a one-to-one manner, and an auxiliary spring is sleeved on each of the four guide rods; and the two ends of the auxiliary spring are fixedly installed on the inner top wall of the support frame and the upper wall surface of the sliding sleeve, respectively.

[0020] Preferably, observation windows are fixedly installed on the two outer side walls of the support frame.

[0021] Beneficial effects

[0022] The hot melting connecting device for the dustproof screen cloth of the automobile sound horn has the following beneficial effects:

[0023] The auxiliary inclination and the sliding protection frame are matched through the linkage of the heat melting fixture, the sliding guide block, and the sliding and matching of the reset spring driving the protection frame to automatically open and close, so that the safety problems of no protection and easy misoperation are solved.

[0024] The sliding and matching of the trapezoidal guide block of the feeding table and the guide dovetail groove of the operation table, the insertion and positioning of the stepped pin and the guide groove, and the unlocking of the stepped pin by the electric push rod are matched, so that the problems of complicated tool changing and poor adaptability are solved.

[0025] The sliding and matching of the four guide rods and the sliding sleeve of the connecting plate are matched, and the auxiliary spring buffer is matched, so that the problems of unstable heat melting fixture pressing and easy welding quality fluctuation are solved. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 It is a whole structure schematic view of the utility model;

[0027] Figure 2 It is a support frame structure schematic view of the utility model;

[0028] Figure 3 It is a connecting plate structure schematic view of the utility model;

[0029] Figure 4 It is a protection frame structure schematic view of the utility model;

[0030] Figure 5 It is a feeding table structure schematic view of the utility model.

[0031] In the drawing: 1, operation table; 2, support frame; 3, heat melting fixture; 4, guide rod; 5, connecting plate; 6, sliding guide block; 7, auxiliary inclination; 8, protection frame; 9, feeding table; 10, sliding groove; 11, sliding block; 12, spring limiting rod; 13, reset spring; 14, guide dovetail groove; 15, trapezoidal guide block; 16, stepped guide hole; 17, stepped pin; 18, ball; 19, limiting spring; 20, guide groove; 21, electric push rod; 22, sliding sleeve; 23, auxiliary spring; 24, observation window. DETAILED DESCRIPTION

[0032] The technical scheme 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.

[0033] Please refer to Figures 1-5 A kind of automobile sound loudspeaker dust screen cloth hot melting connecting device, including: operation table 1, the upper wall surface of operation table 1 is fixedly installed with support frame 2, support frame 2 is fixedly installed with heat melting fixture 3;

[0034] Four guide rods 4 are evenly distributed and fixedly installed at four corners inside the support frame 2;

[0035] The connecting plate 5 is fixedly sleeved on the outer wall surface of the hot melting jig 3, the front wall surface of the connecting plate 5 is fixedly installed with the sliding guide block 6, and the front wall surface of the sliding guide block 6 is provided with the auxiliary inclination angle 7.

[0036] The protection frame 8 is elastically connected to the inner side wall of the support frame 2 on both sides and is slidably matched with the auxiliary inclination angle 7.

[0037] The feeding table 9 is slidably connected to the operating table 1 on the lower wall surface and is adaptively connected to the operating table 1.

[0038] In use, the operating table 1 provides a basic bearing support for the whole device and serves as an operating platform for the hot melting connection operation; the support frame 2 provides an installation carrier for the hot melting jig 3, the guide rod 4 and other components and guarantees the structural stability; the hot melting jig 3 generates high temperature to realize the hot melting adhesion of the automobile sound loudspeaker and the dustproof mesh cloth; the guide rod 4 provides accurate guidance for the sliding of the connecting plate 5 and ensures the accurate pressing position of the hot melting jig 3; when the hot melting jig 3 is started, the connecting plate 5 and the sliding guide block 6 are synchronously vertically moved to transfer the pressing power; the sliding guide block 6 moves with the connecting plate 5 and drives the protection frame 8 to act through the auxiliary inclination angle 7; the auxiliary inclination angle 7 converts the vertical force of the connecting plate 5 into the horizontal driving force of the protection frame 8 to realize the automatic opening and closing of the protection frame 8; the protection frame 8 is closed during feeding to play a safety protection role and prevent the operator from contacting the high-temperature components; the feeding table 9 places the loudspeakers and dustproof mesh cloths to be processed to realize convenient feeding and discharging and improve the operation efficiency.

[0039] Please refer to Figure 2 The inner side wall of the support frame 2 is provided with a sliding groove 10, the two side walls of the protection frame 8 are fixedly installed with sliding blocks 11, and the sliding blocks 11 are slidably matched with the sliding groove 10; the rear wall surface of the sliding block 11 is fixedly installed with a spring limiting rod 12, a reset spring 13 is sleeved on the spring limiting rod 12, one end of the reset spring 13 is fixedly connected with the sliding block 11, and the other end is fixedly connected to the inner bottom wall of the sliding groove 10.

[0040] In use, the sliding groove 10 provides sliding guidance for the sliding block 11 to standardize the opening and closing track of the protection frame 8; the sliding block 11 drives the protection frame 8 to slide along the sliding groove 10 to ensure the stable opening and closing action; the spring limiting rod 12 limits the position of the reset spring 13 to avoid the spring from being separated from the action position; the reset spring 13 generates a reset force through elastic deformation to drive the protection frame 8 to automatically reset and close to guarantee the operation safety.

[0041] Please refer to Figure 2 and Figure 5The top wall surface of the operation table 1 is provided with two guide dovetail grooves 14 extending along the width direction, and the lower wall surface of the feeding table 9 is fixedly provided with two trapezoidal guide blocks 15 which are slidably matched with the guide dovetail grooves 14.

[0042] In use, the guide dovetail grooves 14 provide sliding guidance for the trapezoidal guide blocks 15 and prevent the feeding table 9 from being separated from the operation table 1; the trapezoidal guide blocks 15 are matched with the guide dovetail grooves 14, so that the sliding of the feeding table 9 is accurate and without deviation, and the hot melting position accuracy is ensured.

[0043] Please refer to Figure 5 A stepped guide hole 16 is formed in the center of the feeding table 9, a stepped pin 17 is slidably connected in the stepped guide hole 16, and a ball 18 is rotatably connected to the bottom of the stepped pin 17; and a limiting spring 19 is fixedly installed between the top wall of the stepped guide hole 16 and the upper wall surface of the stepped pin 17.

[0044] In use, the stepped guide hole 16 provides sliding guidance and limiting for the stepped pin 17, and standardizes the movement track of the stepped pin 17; the stepped pin 17 is inserted into the guide groove 20 to realize accurate positioning of the feeding table 9 and ensure the hot melting position; the ball 18 reduces the frictional resistance between the stepped pin 17 and the operation table 1, so that the movement along the guide dovetail groove 14 is smoother; and the limiting spring 19 provides elastic driving force to push the stepped pin 17 to keep the insertion state with the guide groove 20 and lock the position of the feeding table 9.

[0045] Please refer to Figure 2 and Figure 5 The top wall surface of the operation table 1 is provided with a guide groove 20 which is matched with the stepped pin 17; and an electric push rod 21 is fixedly arranged in the guide groove 20 and corresponds to the lower end of the stepped pin 17.

[0046] In use, the guide groove 20 provides an insertion positioning space for the stepped pin 17, so that the positioning of the feeding table 9 is accurate; and the electric push rod 21 lifts the stepped pin 17 to make it separate from the guide groove 20, so that the positioning of the feeding table 9 is unlocked and different models of the feeding table 9 can be conveniently replaced.

[0047] Please refer to Figures 2-3 Four slide sleeves 22 are fixedly installed in the connecting plate 5, and the slide sleeves 22 are slidably matched with the four guide rods 4 one by one; and an auxiliary spring 23 is sleeved on each of the four guide rods 4, and the two ends of the auxiliary spring 23 are fixedly installed on the inner top wall of the support frame 2 and the upper wall surface of the slide sleeve 22 respectively.

[0048] In use, the slide sleeve 22 is slidably matched with the guide rod 4 to reduce the frictional resistance when the connecting plate 5 slides and improve the movement stability; and the auxiliary spring 23 increases the stability when the connecting plate 5 is pressed down and also assists the resetting of the connecting plate 5.

[0049] Please refer toFigure 1 Both outer walls of the support frame 2 are fixedly installed with observation windows 24, which facilitate the operator to view the hot melt connection process in real time without opening the protective frame 8, thereby improving the operation safety and convenience.

[0050] In this embodiment, the safety protection and process visualization during hot melt operation are realized through the linkage of the hot melt tool and the automatic opening and closing of the protective frame, the elastic reset structure and the observation window, the operator is prevented from contacting the high-temperature components, and the safety requirements of batch production are met.

[0051] Specifically, before loading, the protective frame 8 is kept in a closed state under the elastic force of the reset spring 13: the sliding block 11 is at the front end position along the sliding groove 10, the spring limiting rod 12 limits the deformation of the reset spring 13, forming a closed protective space to prevent accidental contact with the hot melt tool 3. After the operator places the automobile sound horn and the dust screen cloth to be processed on the loading table 9, the equipment is started.

[0052] The hot melt tool 3 is started to press down, driving the connecting plate 5 to move downward synchronously, the sliding sleeve 22 in the connecting plate 5 slides smoothly along the four guide rods 4, and the auxiliary spring 23 is stretched to ensure the accuracy of the hot melt tool 3 pressing down track. The sliding guide block 6 on the front wall of the connecting plate 5 moves downward, and its auxiliary inclination 7 contacts the protective frame 8 and generates a horizontal thrust, pushing the protective frame 8 to slide to both sides, the sliding block 11 moves backward along the sliding groove 10, and the reset spring 13 is stretched, so that the protective frame 8 automatically opens to avoid the hot melt tool 3.

[0053] When the hot melt tool 3 is pressed down to the target position and the hot melt connection of the dust screen cloth and the horn is completed, the hot melt tool 3 is reset upward, and the auxiliary spring 23 cooperates with the hot melt tool 3 to pull the connecting plate 5 back up. The reset spring 13 releases the elastic force to pull the sliding block 11 to reset along the sliding groove 10, and the protective frame 8 is automatically closed to form a protective space again. The protective frame opening and closing does not need manual intervention, which not only ensures safety but also does not affect the operation efficiency.

[0054] In this embodiment, through the dovetail groove guidance, the stepped pin positioning and the electric push rod unlocking, the quick disassembly and precise positioning of the loading table are realized, which meets the processing requirements of different models of automobile sound horns and improves the efficiency of model change.

[0055] Specifically, when installing the loading table 9, the two trapezoidal guide blocks 15 at the bottom of the loading table are aligned with the guide dovetail grooves 14 of the operation table 1, the trapezoidal structure prevents the loading table from disengaging and guides it to slide smoothly to the position directly below the hot melt tool 3. During the sliding process, the ball bearings 18 at the bottom of the stepped pins 17 reduce friction with the operation table 1, making the movement smoother. When the loading table 9 reaches the target position, the limit spring 19 in the stepped guide hole 16 pushes the stepped pin 17 to pop out downward, accurately inserts into the guide groove 20 of the operation table 1, and completes the positioning and locking of the loading table, ensuring the accuracy of the hot melt position.

[0056] When the different models of the loading table need to be replaced, the electric push rod 21 in the guide groove 20 is started, the electric push rod 21 is lifted upwards to make the stepped pin 17 separate from the guide groove 20, and the positioning locking is released. At this time, the old loading table can be easily pulled out along the guide dovetail groove 14, and then the loading table suitable for the new model of the horn is slid in and locked according to the above steps, and the whole process does not need complicated tools, and the type changing operation is fast and efficient. After positioning, the relative position of the loading table 9 and the hot melting jig 3 is accurate, which guarantees the consistency of the hot melting connection of different models of the horn.

[0057] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A hot melt connecting device for dust screen cloth of car sound horn, comprising an operation table (1), a supporting frame (2) is fixedly installed on the upper wall surface of the operation table (1), and a hot melt jig (3) is fixedly installed on the supporting frame (2), characterized in that, Also includes: Four guide rods (4) are evenly distributed and fixedly installed at the four corners inside the support frame (2); The connecting plate (5) is fixedly sleeved on the outer wall surface of the hot melting jig (3), the front wall surface of the connecting plate (5) is fixedly installed with a sliding guide block (6), and the front wall surface of the sliding guide block (6) is provided with an auxiliary inclination (7); The protective frame (8) is elastically connected to the inner side wall of the support frame (2) on both sides, and is slidably matched with the auxiliary inclination (7); The upper wall surface of the support frame (2) is slidably connected with the operation table (1), and is adaptively connected with the operation table (1).

2. The hot melt connecting device for dustproof screen cloth of car sound horn according to claim 1, characterized in that, The inner side wall of the support frame (2) is provided with a sliding groove (10), the two side walls of the protective frame (8) are fixedly installed with a sliding block (11), and the sliding block (11) is slidably matched with the sliding groove (10); The rear wall surface of the sliding block (11) is fixedly installed with a spring limiting rod (12), the spring limiting rod (12) is sleeved with a reset spring (13), one end of the reset spring (13) is fixedly connected with the sliding block (11), and the other end is fixedly connected with the inner bottom wall of the sliding groove (10).

3. The hot melt connecting device for dust screen cloth of car sound horn according to claim 1, characterized in that, The top wall surface of the operation table (1) is provided with two guide dovetail grooves (14) extending in the width direction, the lower wall surface of the upper loading table (9) is fixedly installed with two trapezoidal guide blocks (15), and the trapezoidal guide blocks (15) are slidably matched with the guide dovetail grooves (14).

4. The hot melt connecting device for dust screen cloth of car sound horn according to claim 3, characterized in that, The center of the upper loading table (9) is provided with a stepped guide hole (16), the stepped guide hole (16) is slidably connected with a stepped pin (17), and the bottom of the stepped pin (17) is rotatably connected with a ball (18); The top wall of the stepped guide hole (16) and the upper wall surface of the stepped pin (17) are fixedly installed with a limiting spring (19).

5. The hot melt connecting device for dust screen cloth of car sound horn according to claim 4, characterized in that, The top wall surface of the operation table (1) is provided with a guide groove (20), the guide groove (20) is adaptively connected with the stepped pin (17); The guide groove (20) is fixedly provided with an electric push rod (21), and the electric push rod (21) is correspondingly provided at the lower end of the stepped pin (17).

6. The hot melt connecting device for dust screen cloth of car sound horn according to claim 1, characterized in that, The connecting plate (5) is fixedly installed with four sliding sleeves (22), the sliding sleeves (22) are correspondingly matched with the four guide rods (4) and are slidably matched; Four guide rods (4) are sleeved with auxiliary springs (23), and the two ends of the auxiliary springs (23) are fixedly installed on the inner top wall of the support frame (2) and the upper wall surface of the sliding sleeve (22).

7. The hot melt connecting device for dust screen cloth of car sound horn according to claim 1, characterized in that, The two outer side walls of the support frame (2) are fixedly installed with observation windows (24).

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