An automatic bonding device for a car door sealing strip

Abstract

The present invention discloses an automatic bonding device for a car door sealing strip, which comprises a base and a support column arranged at the upper end thereof. An installation substrate is provided at the upper end of the support column. The installation substrate is provided with a winding roller for winding the sealing strip. The winding roller is connected to a feeding motor for driving its rotation. A conveying assembly for conveying the sealing strip is provided on the surface of the installation substrate on the right side of the winding roller. A pasting guiding assembly for pasting the sealing strip on the edge of the car door and a cutting assembly for cutting the sealing strip are provided at the right end of the installation substrate. The present invention is designed aiming at the drawbacks of the existing device. It can not only clamp and convey sealing strips of different models, but also adsorb and fix the sealing strip when guiding and pasting the sealing strip, avoiding the problem of the sealing strip falling off, helping to improve the processing efficiency and having strong practicability.

Description

Technical Field

[0001] The present invention relates to the technical field of door seal strip processing, and specifically relates to an automatic bonding device for door seal strips. Background Art

[0002] Nowadays, seal strips are used for doors, windows, front and rear windshields, engine hoods, trunk lids, etc. of automobiles, and they can play roles such as waterproofing, dustproofing, sound insulation, heat insulation, shock absorption, and decoration. The bonding forms of seal strips mainly include two forms. Here, the door seal strip is taken as an example for illustration. The first form is the snap connection and bonding form, and the second form is the full bonding form. Among them, for the full bonding form, the implementation methods usually include manual rolling and integral pressing (semi-automatic control). The manual rolling method is completed manually. In this manual operation process, due to the difficulty of personnel in controlling hand force, the seal strip is prone to stretching deformation, and it is easy to make the bonding position of the seal strip uneven, resulting in the distortion of the seal strip and affecting the bonding quality, thereby reducing the appearance quality of the door. In the integral pressing method, the rubber strip needs to be manually placed before each door is bonded, and then automatic bonding is carried out. This manual placement method of the seal strip makes it difficult to ensure the bonding position of the seal strip, affects the bonding quality, and thus reduces the appearance quality of the door. In addition, since the above two methods both adopt manual operations, the production efficiency can be reduced.

[0003] In view of the above problems, the patent with the publication number CN103707955B discloses an automatic bonding device. When the device transports the seal strip, it cannot transport seal strips with different thicknesses, and the bonding unit cannot fix the seal strip during bonding, which is prone to the problem of falling off. Based on this, an automatic bonding device for door seal strips is now provided. Summary of the Invention

[0004] The purpose of the present invention is to provide an automatic bonding device for door seal strips to solve the problems raised in the above background art.

[0005] To achieve the above purpose, the present invention provides the following technical solutions:

[0006] An automatic bonding device for door seal strips includes a base and a support column arranged at the upper end thereof. An installation substrate is provided at the upper end of the support column. The installation substrate is provided with a winding roller for winding the seal strip. The winding roller is connected to a feeding motor for driving its rotation. A conveying assembly for transporting the seal strip is provided on the surface of the installation substrate on the right side of the winding roller. A pasting guiding assembly for pasting the seal strip on the edge of the door and a cutting assembly for cutting the seal strip are provided at the right end of the installation substrate;

[0007] On the right side of the mounting substrate where the cutting component and the pasting guiding component are located, there is also a mounting bracket.

[0008] As a further solution of the present invention: The pasting guiding component includes a fixed disk arranged on the mounting bracket. At least two pasting guiding wheels are arrayed on the surface of the fixed disk. Each pasting guiding wheel is rotationally connected to the surface of the fixed disk through a fixed shaft. A transmission cavity is arranged inside the fixed disk. A driven gear is arranged on the surface of the fixed shaft where the transmission cavity is located. A driving gear meshing with the driven gear is arranged inside the transmission cavity. The driving gear is installed at the output end of a rotating motor.

[0009] As a further solution of the present invention: The pasting guiding component further includes an adsorption mechanism for positioning the sealing strip on the surface of the pasting guiding wheel. The adsorption mechanism includes a negative pressure cavity arranged inside the pasting guiding wheel. The negative pressure cavity is communicated with an air guiding channel inside the fixed shaft. A rotating sleeve communicated with the air guiding channel is rotationally arranged at the end of the fixed shaft. The air extraction port of each rotating sleeve is connected to an air extraction pump through an air extraction pipe. Under the action of the air extraction pump, the rotating sleeve and the fixed shaft cooperate to extract the gas inside the pasting guiding wheel, and then a negative pressure is formed on the surface of the negative pressure suction hole, so as to assist in adsorbing and fixing the sealing strip.

[0010] As a further solution of the present invention: The cutting component includes a knife seat arranged below the mounting bracket for supporting the sealing strip. A polishing layer is arranged on the upper end surface of the knife seat. A knife groove is formed on the surface of the knife seat. A cutting push rod is installed at the lower end of the mounting bracket above the knife groove. A cutting knife matching with the knife groove is arranged at the output end of the cutting push rod.

[0011] As a further solution of the present invention: The conveying component includes a sliding notch formed on the surface of the mounting substrate. Two sliding seats are slidably arranged on the surface of the mounting substrate where the sliding notch is located. Two driving rollers are rotationally arranged on each sliding seat. A feeding transmission belt for squeezing the sealing strip is wound between the left and right driving rollers. The input end of one of the driving rollers is connected to a transmission motor for driving its rotation. The left ends of the upper and lower sliding seats are connected to a spacing adjusting part for driving the two to approach or move away from each other.

[0012] As a further solution of the present invention: The squeezing surface of the feeding transmission belt is provided with friction protrusions for increasing the friction force.

[0013] As a further solution of the present invention: The spacing adjusting member includes a transmission block provided on the left side of the sliding seat. A vertically arranged threaded hole is provided on each of the two transmission blocks. An adjusting screw rod is cooperatively arranged in the upper and lower threaded holes. Two transmission thread regions corresponding to the upper and lower transmission blocks are provided on the adjusting screw rod. The thread directions of the two transmission thread regions are opposite. The upper end of the adjusting screw rod is fixedly connected to the output end of the adjusting motor, and the lower end of the adjusting screw rod is rotatably connected to the fixed block.

[0014] As a further solution of the present invention: The transmission motors on the two sliding seats are synchronous motors.

[0015] As a further solution of the present invention: Pulley in contact with the surface of the mounting substrate is provided at the bottom of the sliding seat.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: The present invention is designed aiming at the drawbacks of the existing device. It can not only clamp and convey different types of sealing strips, but also adsorb and fix the sealing strips when guiding and pasting the sealing strips, avoiding the problem of the sealing strips falling off, helping to improve the processing efficiency, and having strong practicability. Description of the Drawings

[0017] Figure 1 It is a schematic structural diagram of the present invention.

[0018] Figure 2 It is a schematic structural diagram inside the present invention.

[0019] Figure 3 It is a schematic structural diagram of the pasting and guiding assembly in the present invention.

[0020] Figure 4 It is a schematic structural diagram inside the pasting and guiding assembly in the present invention.

[0021] Among them: base 11, support column 12, fixed block 13, adjusting screw rod 14, transmission block 15, winding roller 16, mounting substrate 17, adjusting motor 18, sliding notch 19, feeding conveyor belt 20, sliding seat 21, driving roller 22, cutting push rod 23, cutting knife 24, mounting frame 25, fixed disk 26, pasting guide wheel 27, knife groove 28, knife seat 29, negative pressure suction hole 30, transmission cavity 31, driven gear 32, fixed shaft 33, air extraction pipe 34, rotating sleeve 35, rotating motor 36, driving gear 37. Detailed Embodiments

[0022] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise specified, the meaning of "plurality" is two or more.

[0023] In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood through specific situations.

[0024] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts belong to the scope of protection of the present invention.

[0025] Please refer to Figures 1-4 , in an embodiment of the present invention, an automatic bonding device for a door seal strip includes a base 11 and a support column 12 provided at its upper end. An installation substrate 17 is provided at the upper end of the support column 12. The installation substrate 17 is provided with a winding roller 16 for winding the seal strip. The winding roller 16 is connected to a feeding motor for driving its rotation. A conveying assembly for conveying the seal strip is provided on the surface of the installation substrate 17 on the right side of the winding roller 16. A pasting guiding assembly for pasting the seal strip on the edge of the door and a cutting assembly for cutting the seal strip are provided at the right end of the installation substrate 17;

[0026] An installation bracket 25 is further provided on the right side of the installation substrate 17 where the cutting assembly and the pasting guiding assembly are located;

[0027] The pasting guiding component includes a fixed disk 26 arranged on the mounting frame 25. At least two pasting guiding wheels 27 are arrayed on the surface of the fixed disk 26. Each pasting guiding wheel 27 is rotationally connected to the surface of the fixed disk 26 through a fixed shaft 33. A transmission cavity 31 is arranged inside the fixed disk 26. A driven gear 32 is arranged on the surface of the fixed shaft 33 where the transmission cavity 31 is located. A driving gear 37 meshing with the driven gear 32 is arranged inside the transmission cavity 31. The driving gear 37 is installed at the output end of a rotating motor 36. The rotating motor 36 drives the driving gear 37 to rotate, the driving gear 37 drives the driven gear 32 to rotate, and the driven gear 32 drives the pasting guiding wheel 27 to rotate through the fixed shaft 33, thereby completing the guiding of the sealing strip.

[0028] The pasting guiding component further includes an adsorption mechanism for positioning the sealing strip on the surface of the pasting guiding wheel 27. The adsorption mechanism includes a negative pressure cavity arranged inside the pasting guiding wheel 27. The negative pressure cavity is communicated with an air guiding channel inside the fixed shaft 33. A rotating sleeve 35 communicated with the air guiding channel is rotatably arranged at the end of the fixed shaft 33. The air extraction port of each rotating sleeve 35 is connected to an air extraction pump through an air extraction pipe 34. Under the action of the air extraction pump, the rotating sleeve 35 and the fixed shaft 33 cooperate to pump out the gas inside the pasting guiding wheel 27, and then a negative pressure is formed on the surface of the negative pressure suction holes 30, so that the sealing strip can be assisted in adsorption and fixation. This adsorption method can prevent the problem of the sealing strip falling off during pasting to a certain extent, and since the rotating sleeve 35 is rotationally connected to the fixed shaft 33, it will not affect the rotation of the pasting guiding wheel 27.

[0029] The cutting component includes a knife seat 29 arranged below the mounting frame 25 for supporting the sealing strip. A polishing layer is arranged on the upper end surface of the knife seat 29. A knife groove 28 is arranged on the surface of the knife seat 29. A cutting push rod 23 is installed at the lower end of the mounting frame 25 above the knife groove 28. A cutting knife 24 matching with the knife groove 28 is arranged at the output end of the cutting push rod 23. When cutting the sealing strip, the cutting push rod 23 drives the cutting knife 24 to move downward, and the cutting knife 24 cooperates with the knife groove 28 to cut off the sealing strip.

[0030] The conveying component includes a sliding notch 19 opened on the surface of the mounting substrate 17. Two sliding seats 21 are slidably arranged on the surface of the mounting substrate 17 where the sliding notch 19 is located. Two driving rollers 22 are rotatably arranged on each sliding seat 21. A feeding transmission belt 20 for extruding the sealing strip is wound between the left and right driving rollers 22. Friction protrusions for increasing the friction force are arranged on the extrusion surface of the feeding transmission belt 20. The input end of one of the driving rollers 22 is connected to a transmission motor for driving its rotation. The left ends of the upper and lower sliding seats 21 are connected to a spacing adjusting member for driving the two to approach or move away from each other.

[0031] The spacing adjusting member includes a transmission block 15 arranged on the left side of the sliding seat 21. A vertically arranged threaded hole is provided on each of the two transmission blocks 15. An adjusting screw 14 is fitted in the upper and lower threaded holes. Two transmission thread regions corresponding to the upper and lower transmission blocks 15 are provided on the adjusting screw 14. The thread directions of the two transmission thread regions are opposite. The upper end of the adjusting screw 14 is fixedly connected to the output end of the adjusting motor 18. The lower end of the adjusting screw 14 is rotatably connected to the fixed block 13. Under the action of the adjusting motor 18, the adjusting screw 14 rotates relative to the transmission block 15. Under the action of the thread, the sliding seat 21 slides along the surface of the mounting substrate 17, thereby adjusting the spacing between the two sliding seats 21.

[0032] The working principle of the present invention is as follows: In actual use, the sealing strip wound on the winding roller 16 is pulled between the upper and lower feeding conveyor belts 20. The upper and lower sliding seats 21 are driven by the spacing adjusting member to move, so as to tightly press the sealing strip. Under the guidance of the threading assembly, the sealing strip will be transmitted along the surface of the tool holder 29. The sealing strip will slide along the surface of the pasting guide wheel 27. Under the guidance of the pasting guide wheel 27, the sealing strip will be attached to the vehicle door. During the attachment process, under the action of the air extraction pump, the rotating sleeve 35 cooperates with the fixed shaft 33 to extract the gas inside the pasting guide wheel 27, and then a negative pressure is formed on the surface of the negative pressure suction hole 30, so that the sealing strip can be assisted in adsorption and fixation. This adsorption method can prevent the problem of the sealing strip falling off during pasting to a certain extent. After a single attachment is completed, the cutting push rod 23 drives the cutting knife 24 to move downward, so as to cut the sealing strip.

[0033] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and without departing from the spirit or basic characteristics of the present invention, the present invention can be implemented in other specific forms. Therefore, in any aspect, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention. Any reference signs in the claims should not be regarded as limiting the claimed rights.

[0034] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An automatic bonding device for a car door sealing strip, comprising a base (11) and a support column (12) arranged at the upper end thereof, wherein an installation substrate (17) is provided at the upper end of the support column (12), and it is characterized in that, The installation substrate (17) is provided with a winding roller (16) for winding the sealing strip. The winding roller (16) is connected to a feeding motor for driving its rotation. On the surface of the installation substrate (17) on the right side of the winding roller (16), there is a conveying assembly for conveying the sealing strip. At the right end of the installation substrate (17), there is a pasting guiding assembly for pasting the sealing strip on the edge of the vehicle door and a cutting assembly for cutting the sealing strip; On the right side of the installation substrate (17) where the cutting assembly and the pasting guiding assembly are located, there is also an installation frame (25); The pasting guiding assembly includes a fixed disk (26) arranged on the installation frame (25). At least two pasting guiding wheels (27) are arrayed on the surface of the fixed disk (26). Each pasting guiding wheel (27) is rotationally connected to the surface of the fixed disk (26) through a fixed shaft (33). Inside the fixed disk (26), there is a transmission cavity (31). On the surface of the fixed shaft (33) where the transmission cavity (31) is located, there is a driven gear (32). Inside the transmission cavity (31), there is a driving gear (37) meshing with the driven gear (32). The driving gear (37) is installed at the output end of a rotating motor (36); The pasting guiding assembly further includes an adsorption mechanism for positioning the sealing strip on the surface of the pasting guiding wheel (27). The adsorption mechanism includes a negative pressure cavity arranged inside the pasting guiding wheel (27). The negative pressure cavity is communicated with an air guiding channel inside the fixed shaft (33). At the end of the fixed shaft (33), a rotating sleeve (35) communicated with the air guiding channel is rotatably arranged. The air extraction port of each rotating sleeve (35) is connected to an air extraction pump through an air extraction pipe (34). Under the action of the air extraction pump, the rotating sleeve (35) and the fixed shaft (33) cooperate to pump out the gas inside the pasting guiding wheel (27), and then a negative pressure is formed on the surface of the negative pressure suction holes (30) to assist in adsorbing and fixing the sealing strip; The cutting assembly includes a tool holder (29) arranged below the installation frame (25) for supporting the sealing strip. The upper end surface of the tool holder (29) is provided with a polishing layer. A tool groove (28) is formed on the surface of the tool holder (29). Below the installation frame (25) above the tool groove (28), a cutting push rod (23) is installed. At the output end of the cutting push rod (23), there is a cutting tool (24) matching the tool groove (28).

2. The automatic bonding device for a car door sealing strip according to claim 1, wherein, The conveying assembly includes a sliding notch (19) formed on the surface of the installation substrate (17). Two sliding seats (21) are slidably arranged on the surface of the installation substrate (17) where the sliding notch (19) is located. Two transmission rollers (22) are rotatably arranged on each sliding seat (21). An feeding transmission belt (20) for extruding the sealing strip is wound between the left and right transmission rollers (22). The input end of one of the transmission rollers (22) is connected to a transmission motor for driving its rotation. The left ends of the upper and lower sliding seats (21) are connected to a spacing adjusting member for driving the two to approach or move away from each other.

3. The automatic bonding device for door seals according to claim 2, characterized in that The extrusion surface of the feeding transmission belt (20) is provided with friction protrusions for increasing the friction force.

4. The automatic bonding device for a door seal strip according to claim 3, characterized in that, The spacing adjusting member includes a transmission block (15) arranged on the left side of the sliding seat (21). A vertically arranged threaded hole is provided on each of the two transmission blocks (15). An adjusting screw rod (14) is fitted in the upper and lower threaded holes. Two transmission thread regions corresponding to the upper and lower transmission blocks (15) are provided on the adjusting screw rod (14). The thread directions of the two transmission thread regions are opposite. The upper end of the adjusting screw rod (14) is fixedly connected to the output end of the adjusting motor (18), and the lower end of the adjusting screw rod (14) is rotatably connected to the fixed block (13).

5. The automatic bonding device for a car door sealing strip according to claim 4, wherein The transmission motors on the two sliding seats (21) are synchronous motors.

6. The automatic bonding device for door seals according to claim 4, characterized in that A pulley that is in pressing contact with the surface of the mounting substrate is provided at the bottom of the sliding seat (21).

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