Automobile trim strip end trimming device

Abstract

The invention discloses an automobile trim strip end trimming device, and relates to the technical field of automobile trim strip trimming. Comprising a support plate, symmetrically-arranged side plates are fixedly mounted on the upper end face of the support plate, a mounting plate is fixedly mounted on the side plates, a first electric push rod is fixedly mounted on the mounting plate, an upper pressing block is fixedly mounted at the output end of the first electric push rod, and a lower pressing block is fixedly mounted on the support plate; the upper pressing block and the lower pressing block are provided with inlaying grooves used in cooperation with the automobile decoration strip. An auxiliary assembly is arranged at the inner bottom of the support plate, and the automobile trim strip is stably fixed between the upper pressing block and the lower pressing block through the auxiliary assembly. A second electric push rod is arranged on the mounting plate and located on the outer side of the first electric push rod. According to the automobile trim strip trimming device, through arrangement of the auxiliary assembly, the automobile trim strip cannot deviate or shake in the trimming process, and the trimming precision, stability and efficiency of the automobile trim strip are ensured.

Description

Technical Field

[0001] The invention relates to the technical field of automobile decorative strip trimming, in particular to an automobile decorative strip end trimming device. Background Art

[0002] Car decorative strips (also called external water cuts) are mainly used on car doors to decorate, seal and guide the door glass. Car decorative strips often have different three-dimensional angles at both ends. If the processing of the ends is inaccurate, it will inevitably affect the aesthetics of its assembly to the car body and the assembly with other parts.

[0003] In the prior art, a Chinese patent with publication number "CN102350802A" discloses a trimming device for the end of an automobile decorative strip, which is adjusted by a primary lateral length adjustment mechanism, a rotation adjustment mechanism, a secondary lateral length adjustment mechanism, a vertical adjustment mechanism, and a rotation adjustment mechanism, so that the trimming working mechanism can move up and down, left and right, front and back within a certain range, and the horizontal and vertical planes can rotate around the axis at a certain angle. This has the characteristics of being easy to use, easy to change molds, high trimming accuracy and reliability, and meeting the requirements for trimming of multiple varieties of decorative strips. It solves the problem that the existing trimming machine has a simple structure, cannot achieve 360-degree angle adjustment, can only be adjusted by manual visual operation, is troublesome to adjust, and has low efficiency.

[0004] When the ends of existing automobile decorative strips are trimmed, a clamping mechanism is needed to complete the positioning of the automobile decorative strips to ensure that the automobile decorative strips will not be shifted when the ends are trimmed. However, most of the positioning methods currently used use clamping plates to complete the positioning of automobile decorative strips. The decorative strips are prone to slight displacement or shaking when clamped by the clamping plates. Especially during the trimming process, external vibrations or improper operation may cause the clamping plates to loosen, affecting the position stability of the decorative strips, and ultimately affecting the trimming accuracy of the automobile decorative strips. Summary of the invention

[0005] In view of the deficiencies of the prior art, the present invention provides a device for trimming the end of an automobile decorative strip, which solves the problems mentioned in the above background technology.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: A device for trimming the end of an automobile decorative strip comprises a bracket plate, the upper end surface of the bracket plate is fixedly mounted with symmetrically arranged side plates, the side plates are fixedly mounted with a mounting plate, a first electric push rod is fixedly mounted on the mounting plate, an upper pressing block is fixedly mounted on the output end of the first electric push rod, a lower pressing block is fixedly mounted on the bracket plate, and an inlay groove used in conjunction with the automobile decorative strip is provided on the upper pressing block and the lower pressing block; The inner bottom of the bracket plate is provided with an auxiliary component, through which the automobile decorative strip is stably fixed between the upper pressing block and the lower pressing block; A second electric push rod is arranged on the mounting plate and outside the first electric push rod, a trimming head is fixedly mounted on the output end of the second electric push rod, and a stabilizing plate is fixedly mounted on the lower end surface of the bracket plate.

[0007] Preferably, the auxiliary component includes a driving motor fixedly mounted on the inner bottom of the bracket plate, a threaded rod fixedly mounted on the output end of the driving motor, a lifting plate movably mounted on the threaded rod, an ejection rod fixedly mounted on the lifting plate, a lifting groove is provided inside the lower pressure block, and a storage groove is provided at the inner bottom of the inlay groove.

[0008] Preferably, a sliding block is slidably installed inside the lifting slot, a connecting rod is fixedly installed on the sliding block, the top of the connecting rod extends to the inside of the storage slot and an ejection plate is fixedly installed, a spring is fixedly connected to the sliding block, and one end of the spring away from the ejection rod is fixedly connected to the inner top of the lifting slot.

[0009] Preferably, an ejection slot is provided at the inner bottom of the lifting slot, the ejection rod contacts the inner bottom of the sliding block through the ejection slot, the spring is located outside the connecting rod, and the lifting plate is slidably connected to the inner side of the bracket plate.

[0010] Preferably, a first positioning plate is fixedly installed on the side end surface of the side plate, a second positioning plate is fixedly installed on the bracket plate, a lifting screw is rotatably installed between the first positioning plate and the second positioning plate, a first sprocket and an active bevel gear are fixedly installed on the lifting screw, a second sprocket is fixedly installed on the threaded rod and below the lifting plate, and the first sprocket is transmitted to the second sprocket through a chain.

[0011] Preferably, a bearing is fixedly mounted on the side end surface of the side plate and below the first positioning plate, a driving screw is fixedly mounted on the bearing, a positioning block is movably mounted on the driving screw, and a driven bevel gear is fixedly mounted on one end of the driving screw.

[0012] Preferably, a U-shaped plate is fixedly installed on the inner side surface of the side plate, a limiting groove is provided on the inner side surface of the U-shaped plate, a limiting block is fixedly installed on the side end surface of the positioning block, and a clamping block symmetrically arranged up and down is fixedly installed on the positioning block, and the side end surfaces of the upper pressure block and the lower pressure block are both provided with a clamping groove for use with the clamping block.

[0013] Preferably, the driving bevel gear is meshed with the driven bevel gear, the first sprocket is located below the driven bevel gear, and the limiting block is slidably connected to the limiting groove.

[0014] Preferably, the bracket plate is provided with a mounting through hole, a stabilizing plate is fixedly installed inside the mounting through hole, an air pressure cylinder is fixedly installed on the stabilizing plate, a pushing rod is slidably installed on the air pressure cylinder, a lifting slide is movably installed on the lifting screw rod, one end of the pushing rod away from the air pressure cylinder is fixedly connected to the lifting slide, and the lifting slide is slidably connected to the inner side surface of the stabilizing plate.

[0015] Preferably, the air outlet of the air cylinder is fixedly connected to a diverter pipe, the end of the diverter pipe away from the air cylinder is fixedly connected to a hose, the end of the hose away from the diverter pipe is fixedly connected to a fork pipe, the end of the fork pipe away from the hose is fixedly connected to a concentrating pipe, the end of the concentrating pipe away from the fork pipe is fixedly connected to a positioning airbag, a positioning groove is provided on the clamping block, and the positioning airbag is fixedly installed inside the positioning groove.

[0016] The present invention provides a device for trimming the end of an automobile decorative strip. Compared with the prior art, the device has the following beneficial effects: 1. The present invention drives the threaded rod to rotate by a driving motor, utilizes the cooperation between the threaded rod and the lifting plate, and the limit between the lifting plate and the bracket plate, thereby driving the ejector rod on the lifting plate to pass through the ejector slot and cooperate with the sliding block, and then utilizes the connecting rod on the sliding block to drive the ejector plate to rise, utilizes the contact between the ejector plate and the automobile device strip in the inlay groove, enhances the firmness between the automobile decorative strip and the inlay groove, effectively enhances the stability of the automobile decorative strip during trimming, and improves the trimming accuracy of the automobile decorative strip; 2. In the present invention, when the threaded rod rotates, the second sprocket is driven to rotate, and then the first sprocket is driven to rotate by the transmission of the chain. When the first sprocket rotates, the active bevel gear is driven to rotate through the lifting screw. Through the cooperation of the active bevel gear and the driven bevel gear, the driven bevel gear drives the driving screw to rotate. The positioning block on the driving screw is limited by the limit block and the limit groove, thereby driving the clamping block to move horizontally into the clamping groove on the upper pressing block and the lower pressing block. The clamping block and the clamping groove are embedded to enhance the firmness between the upper pressing block and the lower pressing block, and further ensure the stability of the automobile decorative strip during trimming; 3. In the present invention, when the lifting screw is rotated, the lifting slide plate is driven to move, and the lifting slide plate is used to drive the piston on the push rod to slide in the air cylinder. The gas generated by the air cylinder enters the hose through the shunt pipe, and the gas in the hose enters the positioning airbag through the bifurcated pipe and the central pipe. The positioning airbag is expanded by the filling of gas, and the tightness between the clamping block and the clamping groove is improved by the expanded positioning airbag, so that the whole device is more stable and reliable during the trimming process; 4. The present invention, through the provision of auxiliary components, can prevent the automobile decorative strips from positional displacement and shaking during the trimming process, thereby ensuring the accuracy, stability and efficiency of the trimming of the automobile decorative strips. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 is a side sectional view of the support plate of the present invention; Figure 3 It is a front cross-sectional view of the bracket plate in the present invention; Figure 4 It is a structural schematic diagram of the auxiliary components in the present invention; Figure 5 It is a cross-sectional view of the upper pressing block in the present invention; Figure 6 It is a structural schematic diagram of the positioning card block in the present invention; Figure 7 It is a cross-sectional view of the positioning block in the present invention; Figure 8 It is a cross-sectional view of the lower pressing block in the present invention.

[0018] In the figure: 1, bracket plate; 2, side plate; 3, mounting plate; 4, first electric push rod; 5, upper pressure block; 6, lower pressure block; 7, inlay groove; 8, second electric push rod; 9, trimming head; 10, stabilizing plate; 11, driving motor; 12, threaded rod; 13, lifting plate; 14, ejector rod; 15, lifting groove; 16, storage groove; 17, sliding block; 18, connecting rod; 19, ejector plate; 20, spring; 21, ejector through groove; 22, first positioning plate; 23, second positioning plate; 24, lifting wire rod; 25, first sprocket; 26, active bevel gear; 27, second sprocket; 28, bearing; 29, driving screw; 30, positioning block; 31, driven bevel gear; 32, U-shaped plate; 33, limiting groove; 34, limiting block; 35, clamping block; 36, clamping groove; 37, mounting through hole; 38, stabilizing plate; 39, air pressure cylinder; 40, pushing rod; 41, lifting slide plate; 42, shunt pipe; 43, hose; 44, bifurcated pipe; 45, central pipe; 46, positioning airbag; 47, positioning groove. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] See also Figure 1-Figure 8The present invention is a trimming device for the end of an automobile decorative strip, the trimming device comprises a bracket plate 1, the upper end surface of the bracket plate 1 is fixedly mounted with a symmetrically arranged side plate 2, the side plate 2 is fixedly mounted with a mounting plate 3, the mounting plate 3 is fixedly mounted with a first electric push rod 4, the output end of the first electric push rod 4 is fixedly mounted with an upper pressing block 5, the bracket plate 1 is fixedly mounted with a lower pressing block 6, the upper pressing block 5 and the lower pressing block 6 are provided with an inlay groove 7 used in conjunction with the automobile decorative strip, the inner bottom of the bracket plate 1 is provided with an auxiliary component, and the automobile decorative strip is stably fixed on the upper pressing block 5 through the auxiliary component Between the upper pressing block 5 and the lower pressing block 6, a second electric push rod 8 is arranged on the mounting plate 3 and on the outside of the first electric push rod 4, a trimming head 9 is fixedly installed on the output end of the second electric push rod 8, and a stabilizing plate 10 is fixedly installed on the lower end surface of the bracket plate 1, wherein the number of the stabilizing plates 10 is two, and the stabilizing plates 10 are used to ensure the stability of the bracket plate 1, wherein the cross-sectional shape of the bracket plate 1 is a concave shape, wherein the upper pressing block 5 and the lower pressing block 6 are in the same vertical direction, and the shape of the inlay groove 7 can be set according to the appearance of the automobile decorative strip, ensuring that the inlay groove 7 and the automobile decorative strip can fit; The auxiliary component includes a driving motor 11 fixedly mounted on the bottom of the bracket plate 1, a threaded rod 12 fixedly mounted on the output end of the driving motor 11, a lifting plate 13 movably mounted on the threaded rod 12, an ejection rod 14 fixedly mounted on the lifting plate 13, a lifting groove 15 is provided inside the lower pressing block 6, a receiving groove 16 is provided at the inner bottom of the inlay groove 7, a sliding block 17 is slidably mounted inside the lifting groove 15, a connecting rod 18 is fixedly mounted on the sliding block 17, the top end of the connecting rod 18 extends to the inside of the receiving groove 16, and an ejection plate 19 is fixedly mounted, and the sliding block 17 is provided with a plurality of connecting rods 18, 18 and 19. A spring 20 is fixedly connected, and one end of the spring 20 away from the ejection rod 14 is fixedly connected to the inner top of the lifting groove 15. An ejection through groove 21 is provided at the inner bottom of the lifting groove 15. The ejection rod 14 contacts the inner bottom of the sliding block 17 through the ejection through groove 21. The position of the spring 20 is on the outside of the connecting rod 18. The lifting plate 13 is slidably connected to the inner side surface of the bracket plate 1. The elastic force of the spring 20 is used to ensure that the ejection plate 19 will return to its original position when it is not ejected by the ejection rod 14, so that it will not affect the placement of the automobile decorative strip to be trimmed in the inlay groove 7.

[0021] In this article, the automobile decorative strip that needs end face trimming is placed in the inlay groove 7 on the lower pressing block 6, and then the upper pressing block 5 is driven to descend by the first electric push rod 4, and the inlay groove 7 on the upper pressing block 5 and the inlay groove 7 on the lower pressing block 6 are used to limit the automobile decorative strip, and then the threaded rod 12 is driven to rotate by the driving motor 11, and the cooperation between the threaded rod 12 and the lifting plate 13, as well as the limitation between the lifting plate 13 and the bracket plate 1, will drive the ejector rod 14 on the lifting plate 13 to pass through the ejector slot 21 and cooperate with the sliding block 17, and then the connecting rod 18 on the sliding block 17 is used to drive the ejector plate 19 to rise, and the contact between the ejector plate 19 and the automobile device strip in the inlay groove 7 is used to enhance the firmness between the automobile decorative strip and the inlay groove 7, effectively enhance the stability of the automobile decorative strip during trimming, and improve the trimming accuracy of the automobile decorative strip.

[0022] A first positioning plate 22 is fixedly installed on the side end surface of the side plate 2, a second positioning plate 23 is fixedly installed on the bracket plate 1, a lifting screw 24 is rotatably installed between the first positioning plate 22 and the second positioning plate 23, a first sprocket 25 and an active bevel gear 26 are fixedly installed on the lifting screw 24, a second sprocket 27 is fixedly installed on the threaded rod 12 and below the lifting plate 13, the first sprocket 25 is driven by the second sprocket 27 through a chain, a bearing 28 is fixedly installed on the side end surface of the side plate 2 and below the first positioning plate 22, a driving screw 29 is fixedly installed on the bearing 28, a positioning block 30 is movably installed on the driving screw 29, and one end of the driving screw 29 is fixed A driven bevel gear 31 is fixedly installed, a U-shaped plate 32 is fixedly installed on the inner side of the side plate 2, a limiting groove 33 is provided on the inner side of the U-shaped plate 32, a limiting block 34 is fixedly installed on the side end surface of the positioning block 30, and a clamping block 35 symmetrically arranged up and down is fixedly installed on the positioning block 30, and a clamping groove 36 used in conjunction with the clamping block 35 is provided on the side end surfaces of the upper pressing block 5 and the lower pressing block 6. The active bevel gear 26 is meshed with the driven bevel gear 31, and the position of the first sprocket 25 is below the driven bevel gear 31. The limiting block 34 is slidably connected to the limiting groove 33. The cooperation between the limiting block 34 and the limiting groove 33 ensures that the positioning block 30 is in a horizontal movement.

[0023] In this article, when the threaded rod 12 rotates, it will drive the second sprocket 27 to rotate, and then use the chain transmission to drive the first sprocket 25 to rotate. When the first sprocket 25 rotates, it will drive the active bevel gear 26 to rotate through the lifting screw rod 24. Through the cooperation of the active bevel gear 26 and the driven bevel gear 31, the driven bevel gear 31 will drive the driving screw rod 29 to rotate. The positioning block 30 on the driving screw rod 29 will be limited by the limit block 34 and the limit groove 33, thereby driving the clamping block 35 to move horizontally into the clamping groove 36 on the upper pressing block 5 and the lower pressing block 6. The inlay of the clamping block 35 and the clamping groove 36 can enhance the firmness between the upper pressing block 5 and the lower pressing block 6, and further ensure the stability of the automobile decorative strip during trimming.

[0024] The bracket plate 1 is provided with a mounting through hole 37, a stabilizing plate 38 is fixedly installed inside the mounting through hole 37, an air pressure cylinder 39 is fixedly installed on the stabilizing plate 38, a push rod 40 is slidably installed on the air pressure cylinder 39, a lifting slide plate 41 is movably installed on the lifting screw rod 24, one end of the push rod 40 away from the air pressure cylinder 39 is fixedly connected to the lifting slide plate 41, the lifting slide plate 41 is slidably connected to the inner side surface of the stabilizing plate 10, an air outlet of the air pressure cylinder 39 is fixedly connected to a shunt pipe 42, one end of the shunt pipe 42 away from the air pressure cylinder 39 is fixedly connected to a hose 43, one end of the hose 43 away from the shunt pipe 42 is fixedly connected to a bifurcated pipe 44, and the bifurcated pipe 44 is away from the hose One end of the tube 43 is fixedly connected to a central tube 45, and the end of the central tube 45 away from the bifurcated tube 44 is fixedly connected to a positioning airbag 46. A positioning groove 47 is provided on the clamping block 35, and the positioning airbag 46 is fixedly installed inside the positioning groove 47, wherein a piston is provided at the top end of the push rod 40, and the piston slides inside the air pressure cylinder 39, and the piston is used to facilitate the withdrawal of the gas in the air pressure cylinder 39. Since the piston is a technology well known to people in this field, it is not described in detail here. The end of the bifurcated tube 44 away from the hose 43 extends to the inside of the positioning block 30, wherein the top end of the lifting screw rod 24 passes through the mounting hole 37 and is above the bracket plate 1.

[0025] In this article, when the lifting screw 24 rotates, the lifting slide 41 will be driven to move, and the lifting slide 41 will drive the piston on the push rod 40 to slide in the air cylinder 39. The gas generated by the air cylinder 39 will enter the hose 43 through the diverter pipe 42, and the gas in the hose 43 will enter the positioning air bag 46 through the bifurcated pipe 44 and the central pipe 45. The positioning air bag 46 expands due to the filling of gas, and the expanded positioning air bag 46 is used to improve the tightness between the clamping block 35 and the clamping groove 36, so that the entire device is more stable and reliable during the trimming process.

[0026] Working principle: When in use, the automobile decorative strip that needs end surface trimming is placed in the inlay groove 7 on the lower pressing block 6, and then the upper pressing block 5 is driven down by the first electric push rod 4, and the inlay groove 7 on the upper pressing block 5 and the inlay groove 7 on the lower pressing block 6 are used to limit the automobile decorative strip, and then the threaded rod 12 is driven to rotate by the driving motor 11, and the threaded rod 12 is used to cooperate with the lifting plate 13, and the lifting plate 13 is limited to the support plate 1, so that the ejection rod 14 on the lifting plate 13 is driven to pass through the ejection through groove 21 and cooperate with the sliding block 17, and then the connecting rod 18 on the sliding block 17 is used to drive the ejection plate 19 to rise, and the contact between the ejection plate 19 and the automobile device strip in the inlay groove 7 is used to enhance the firmness between the automobile decorative strip and the inlay groove 7; When the threaded rod 12 rotates, it drives the second sprocket 27 to rotate, and then uses the chain transmission to drive the first sprocket 25 to rotate. When the first sprocket 25 rotates, it drives the active bevel gear 26 to rotate through the lifting screw rod 24. Through the cooperation of the active bevel gear 26 and the driven bevel gear 31, the driven bevel gear 31 drives the driving screw rod 29 to rotate. The positioning block 30 on the driving screw rod 29 is limited by the limit block 34 and the limit groove 33, thereby driving the clamping block 35 to move horizontally into the clamping groove 36 on the upper pressing block 5 and the lower pressing block 6. The clamping block 35 is embedded in the clamping groove 36 to enhance the firmness between the upper pressing block 5 and the lower pressing block 6. When the lifting screw 24 rotates, the lifting slide plate 41 is driven to move, and the lifting slide plate 41 is used to drive the piston on the push rod 40 to slide in the air cylinder 39. The gas generated by the air cylinder 39 enters the hose 43 through the shunt pipe 42. The gas in the hose 43 enters the positioning airbag 46 through the bifurcated pipe 44 and the central pipe 45. The positioning airbag 46 expands due to the filling of gas, and the expanded airbag is used to improve the tightness between the clamping block 35 and the clamping groove 36. After the automobile decorative strip is fixed, the trimming head 9 is driven down by the second electric push rod 8, and the trimming head 9 is used to trim the end of the decorative strip.

[0027] In this technical solution, the trimming head 9 can be set with the function of moving forward and backward according to the needs of personnel. At the same time, the trimming head 9 can be composed of a motor and a grinding wheel. The motor is used to drive the grinding wheel to rotate to achieve the purpose of trimming. Since this technology is well known to people in this field, it will not be described in detail here.

[0028] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0029] While the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that many changes, modifications, substitutions and variations can be made to the embodiments without departing from the principles and spirit of the invention.

Claims

1. A device for trimming the end of an automobile decorative strip, comprising a support plate (1), characterized in that: The upper end surface of the support plate (1) is fixedly mounted with symmetrically arranged side plates (2), the side plates (2) are fixedly mounted with a mounting plate (3), the mounting plate (3) is fixedly mounted with a first electric push rod (4), an upper pressing block (5) is fixedly mounted at the output end of the first electric push rod (4), the support plate (1) is fixedly mounted with a lower pressing block (6), and the upper pressing block (5) and the lower pressing block (6) are provided with inlay grooves (7) for use with automobile decorative strips; The inner bottom of the support plate (1) is provided with an auxiliary component, through which the automobile decorative strip is stably fixed between the upper pressing block (5) and the lower pressing block (6); A second electric push rod (8) is arranged on the mounting plate (3) and outside the first electric push rod (4); a trimming head (9) is fixedly mounted on the output end of the second electric push rod (8); and a stabilizing plate (10) is fixedly mounted on the lower end surface of the bracket plate (1).

2. The end trimming device of an automobile decorative strip according to claim 1, characterized in that: The auxiliary component comprises a driving motor (11) fixedly mounted on the inner bottom of the bracket plate (1), a threaded rod (12) fixedly mounted on the output end of the driving motor (11), a lifting plate (13) movably mounted on the threaded rod (12), an ejection rod (14) fixedly mounted on the lifting plate (13), a lifting groove (15) formed inside the lower pressing block (6), and a receiving groove (16) formed on the inner bottom of the inlay groove (7).

3. The end trimming device of an automobile decorative strip according to claim 2, characterized in that: A sliding block (17) is slidably mounted inside the lifting groove (15), a connecting rod (18) is fixedly mounted on the sliding block (17), the top end of the connecting rod (18) extends into the interior of the storage groove (16), and an ejection plate (19) is fixedly mounted thereon, a spring (20) is fixedly connected to the sliding block (17), and one end of the spring (20) away from the ejection rod (14) is fixedly connected to the inner top of the lifting groove (15).

4. The end trimming device of an automobile decorative strip according to claim 3, characterized in that: The inner bottom of the lifting groove (15) is provided with an ejection slot (21), the ejection rod (14) contacts the inner bottom of the sliding block (17) through the ejection slot (21), the spring (20) is located outside the connecting rod (18), and the lifting plate (13) is slidably connected to the inner side surface of the bracket plate (1).

5. The end trimming device of an automobile decorative strip according to claim 2, characterized in that: A first positioning plate (22) is fixedly mounted on the side end surface of the side plate (2), a second positioning plate (23) is fixedly mounted on the bracket plate (1), a lifting screw (24) is rotatably mounted between the first positioning plate (22) and the second positioning plate (23), a first sprocket (25) and an active bevel gear (26) are fixedly mounted on the lifting screw (24), a second sprocket (27) is fixedly mounted on the threaded rod (12) and below the lifting plate (13), and the first sprocket (25) is driven by the second sprocket (27) through a chain.

6. The end trimming device for automobile decorative strips according to claim 5, characterized in that: A bearing (28) is fixedly mounted on the side end surface of the side plate (2) and below the first positioning plate (22); a driving screw (29) is fixedly mounted on the bearing (28); a positioning block (30) is movably mounted on the driving screw (29); and a driven bevel gear (31) is fixedly mounted on one end of the driving screw (29).

7. The end trimming device of an automobile decorative strip according to claim 6, characterized in that: A U-shaped plate (32) is fixedly mounted on the inner side surface of the side plate (2), a limiting groove (33) is provided on the inner side surface of the U-shaped plate (32), a limiting block (34) is fixedly mounted on the side end surface of the positioning block (30), a clamping block (35) symmetrically arranged up and down is fixedly mounted on the positioning block (30), and a clamping groove (36) for use with the clamping block (35) is provided on the side end surfaces of the upper pressing block (5) and the lower pressing block (6).

8. The end trimming device of an automobile decorative strip according to claim 7, characterized in that: The driving bevel gear (26) is meshed with the driven bevel gear (31), the first sprocket (25) is located below the driven bevel gear (31), and the limiting block (34) is slidably connected to the limiting groove (33).

9. The end trimming device of an automobile decorative strip according to claim 7, characterized in that: The support plate (1) is provided with a mounting through hole (37), a stabilizing plate (38) is fixedly mounted inside the mounting through hole (37), an air pressure cylinder (39) is fixedly mounted on the stabilizing plate (38), a push rod (40) is slidably mounted on the air pressure cylinder (39), a lifting slide plate (41) is movably mounted on the lifting screw rod (24), one end of the push rod (40) away from the air pressure cylinder (39) is fixedly connected to the lifting slide plate (41), and the lifting slide plate (41) is slidably connected to the inner side surface of the stabilizing plate (10).

10. The end trimming device of an automobile decorative strip according to claim 9, characterized in that: The air outlet of the air pressure cylinder (39) is fixedly connected to a diverter pipe (42), one end of the diverter pipe (42) away from the air pressure cylinder (39) is fixedly connected to a hose (43), one end of the hose (43) away from the diverter pipe (42) is fixedly connected to a bifurcated pipe (44), one end of the bifurcated pipe (44) away from the hose (43) is fixedly connected to a central pipe (45), one end of the central pipe (45) away from the bifurcated pipe (44) is fixedly connected to a positioning airbag (46), a positioning groove (47) is provided on the clamping block (35), and the positioning airbag (46) is fixedly installed inside the positioning groove (47).

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