A device for trimming rough edges on automotive interior panels
By installing a hydraulic rod and a motor-driven rotating and lifting system on the trimming table, combined with a screw-adjustable fixed plate height, the problem of easy shaking of interior trim panels during trimming is solved, thus improving trimming efficiency and reducing dust pollution.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHIYAN YUSHU ENVIRONMENTAL PROTECTION TECH CO LTD
- Filing Date
- 2025-08-13
- Publication Date
- 2026-07-03
AI Technical Summary
In existing technologies, automotive interior foam is prone to shaking during the trimming process, which makes operation inconvenient and reduces trimming efficiency.
The system employs components such as a trimming table, mounting plate, support rod, fixing ring, rotating sleeve, lead screw, hydraulic rod, and support platform. The support platform is driven to rotate and rise and fall by the hydraulic rod and motor. Combined with the lead screw to adjust the height of the fixing plate, the interior panel is securely fixed. The system also collects flying debris through a ring box and an air pump.
It improved trimming efficiency, reduced dust pollution, and protected the working environment.
Smart Images

Figure CN224446579U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automotive interior panel production and processing technology, and in particular to an automotive interior panel rough edge trimming device. Background Technology
[0002] Car interior refers to a portion of car parts that have a certain decorative function, so the industry currently usually translates it as car interior. After the foam of the car interior is foamed and molded, the rough edges of the foam need to be trimmed.
[0003] Therefore, the existing technology for manual edge trimming auxiliary equipment in the production and processing of automotive interior foam, with publication number CN217293173U, involves the automotive foam being extruded from the mold station and conveyed by the automotive foam conveyor belt to the trimming table after foaming. A pneumatic telescopic rod then pushes the support platform out from inside the trimming table, lifting the formed automotive foam. The operator uses a cutter to trim the rough edges of the foam lifted by the support platform. By rotating the foam, the support platform rotates at the top of the pneumatic telescopic rod via anti-slip blocks on its top surface, achieving reverse trimming of the foam. The debris generated during trimming falls directly into the trimming table and is then drawn away by a fan and debris extraction pipe. After trimming, the support platform is lowered and reset to its original position inside the trimming table via the pneumatic telescopic rod. The operator then pushes the trimmed foam onto another automotive foam conveyor belt via universal ball bearings on the top surface of the trimming table, conveying it to the next processing station.
[0004] When the device is in use, the car foam board is placed on the support platform by gravity alone, which makes the foam board easy to shake when the worker is trimming it. As a result, the worker has to press it down with one hand and polish it with the other, which makes the operation inconvenient and reduces the trimming efficiency of the car interior foam board. Utility Model Content
[0005] The purpose of this utility model is to solve the problems existing in the prior art, and to propose a device for trimming rough edges of automotive interior panels.
[0006] To achieve the above objectives, the present invention adopts the following technical solution: a trimming device for automotive interior panels, comprising a trimming worktable, an mounting plate fixedly connected to one side of the trimming worktable, a groove formed in the middle of the mounting plate, a support rod slidably connected in the groove along the gravity distribution direction, a fixing ring fixedly connected to the other end of the support rod, a rotating sleeve rotatably connected in the fixing ring, a lead screw threadedly connected in the rotating sleeve, a fixing plate for fixing the automotive interior panel fixedly connected to the bottom end of the lead screw, a hydraulic rod rotatably connected to the bottom of the trimming worktable, and a support platform for supporting the automotive interior panel fixedly connected to the telescopic end of the hydraulic rod.
[0007] Preferably, a vertically distributed threaded rod is rotatably connected within the groove, and the threaded rod is threadedly engaged with the support rod.
[0008] Preferably, a motor is fixedly connected to both the bottom of the trimming table and the top of the mounting plate. The motor spindle located at the bottom of the trimming table passes through the bottom wall of the trimming table and extends into the interior of the trimming table. The through end of the motor spindle located at the bottom of the trimming table is fixed to the fixed end of the hydraulic rod. The motor spindle located at the top of the mounting plate passes through the top wall of the mounting plate and extends into the slide groove. The through end of the motor spindle located at the top of the mounting plate is fixed to one end of the threaded rod.
[0009] Preferably, an alignment block is fixedly connected to both one side of the fixed ring and one side of the rotating sleeve.
[0010] Preferably, an annular box is fitted around the outer side of the trimming table, an annular filter plate is fixedly connected to the top of the annular box, and a plurality of connecting pipes arranged in a ring array are connected to the bottom of the annular box, with the other end of the connecting pipes communicating with the interior of the trimming table.
[0011] Preferably, a sealing plate that is sleeved with a hydraulic rod is fixedly connected to the inner side of the trimming table.
[0012] Preferably, an air pump is provided on one side of the trimming table.
[0013] Compared with the prior art, the advantages and positive effects of this utility model are as follows:
[0014] 1. In this utility model, by setting up a trimming table, mounting plate, slide groove, support rod, fixing ring, rotating sleeve, lead screw, fixing plate, hydraulic rod and support table, etc., the hydraulic rod can extend to drive the support table to rise and lift the interior panel. The motor drives the threaded rod to rotate, causing the support rod to rise and fall in the slide groove, thereby adjusting the height of the fixing plate. Rotating the rotating sleeve can cause the lead screw to drive the fixing plate to press down and fix the interior panel. This solves the problems of easy shaking of the interior panel and inconvenient operation in the prior art, and improves the trimming efficiency.
[0015] 2. In this utility model, by setting up an annular box, an annular filter plate, a connecting pipe, a sealing plate and an air pump, the air pump creates a negative pressure in the trimming table when it is working. The airflow carries the flying debris and is sucked in from the annular filter plate, and enters the interior of the trimming table through the connecting pipe. This can efficiently collect flying debris, reduce dust pollution and protect the working environment. Attached Figure Description
[0016] Figure 1 This utility model provides a three-dimensional structural diagram of an automotive interior panel rough edge trimming device;
[0017] Figure 2 This is a side sectional three-dimensional structural diagram of the hydraulic rod in this utility model;
[0018] Figure 3 for Figure 2 Enlarged view of point A in the middle;
[0019] Figure 4 This is a three-dimensional structural diagram of the lead screw in this utility model.
[0020] Legend: 1. Annular box; 2. Trimming table; 3. Air pump; 4. Mounting plate; 5. Motor; 6. Support rod; 7. Lead screw; 8. Fixed plate; 9. Rotating sleeve; 10. Alignment block; 11. Support platform; 12. Annular filter plate; 13. Hydraulic rod; 14. Fixed ring; 15. Threaded rod; 16. Slide groove; 17. Connecting pipe; 18. Sealing plate. Detailed Implementation
[0021] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.
[0022] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.
[0023] like Figure 1-4As shown, an edge trimming device for automotive interior panels includes a trimming worktable 2. A mounting plate 4 is fixedly connected to one side of the trimming worktable 2. A groove 16 is provided in the middle of the mounting plate 4. A support rod 6 is slidably connected in the groove 16 along the gravity distribution direction. A fixing ring 14 is fixedly connected to the other end of the support rod 6. A rotating sleeve 9 is rotatably connected in the fixing ring 14. A lead screw 7 is threadedly connected in the rotating sleeve 9. A fixing plate 8 for fixing the automotive interior panel is fixedly connected to the bottom end of the lead screw 7. A hydraulic rod 13 is rotatably connected to the bottom of the trimming worktable 2. A support platform 11 for supporting the automotive interior panel is fixedly connected to the telescopic end of the hydraulic rod 13. Vertically distributed threaded rods 15 are rotatably connected in the groove 16. The threaded rods 15 are threadedly engaged with the support rod 6.
[0024] In this technical solution, by setting a support rod 6, during the lifting and lowering process of the support rod 6, the fixing ring 14, the lead screw 7, and the fixing plate 8 are driven to lift and lower. When processing a certain type of interior panel, the height of the bottom of the fixing plate 8 is adjusted by controlling the lifting and lowering of the support rod 6, so that the fixing plate 8 can press and fix the interior panel of the car. The specific way in which the support rod 6 is lifted and lowered is that the threaded rod 15 rotates. Since the threaded rod 15 is threadedly engaged with the support rod 6, it will drive the support rod 6 to move along the slide groove 16.
[0025] Furthermore, when fixing the interior trim panel, first adjust the height of the fixing plate 8 so that the bottom of the fixing plate 8 is higher than the height of the interior trim panel. Then, the hydraulic rod 13 extends, driving the support platform 11 to rise and lift the interior trim panel. At this time, the worker turns the screw 7 to move the screw 7 downward, thereby driving the fixing plate 8 downward to press and fix the interior trim panel. In addition, by rotating the hydraulic rod 13, the support platform 11 rotates, thereby driving the interior trim panel to rotate, which facilitates trimming work on different sides. Furthermore, by setting the rotating sleeve 9, the fixing plate 8 can rotate relative to the fixing ring 14. The effect is that after the fixing plate 8 presses down on the interior trim panel, the interior trim panel rotates, which drives the fixing plate 8 to rotate.
[0026] like Figure 2 As shown, motors 5 are fixedly connected to the bottom of the trimming table 2 and the top of the mounting plate 4. The main shaft of the motor 5 located at the bottom of the trimming table 2 passes through the bottom wall of the trimming table 2 and extends into the interior of the trimming table 2. The through end of the main shaft of the motor 5 located at the bottom of the trimming table 2 is fixed to the fixed end of the hydraulic rod 13. The main shaft of the motor 5 located at the top of the mounting plate 4 passes through the top wall of the mounting plate 4 and extends into the slide groove 16. The through end of the main shaft of the motor 5 located at the top of the mounting plate 4 is fixed to one end of the threaded rod 15.
[0027] In this technical solution, when the motor 5 at the bottom of the trimming table 2 starts, its rotational power will directly drive the hydraulic rod 13 to rotate around the fixed end, thereby driving the support table 11 at the telescopic end to rotate. When the main shaft of the motor 5 at the top of the mounting plate 4 rotates, it will drive the threaded rod 15 to rotate synchronously.
[0028] like Figure 1 As shown, alignment blocks 10 are fixedly connected to both one side of the fixed ring 14 and one side of the rotating sleeve 9.
[0029] In this technical solution, by setting up alignment blocks 10, when the operator rotates the lead screw 7, the operator holds the two alignment blocks 10 with one hand and rotates the lead screw 7 with the other hand, so that the lead screw 7 can rotate relative to the rotating sleeve 9, thereby causing relative displacement, so that the lead screw 7 drives the fixed plate 8 to rise and fall.
[0030] like Figure 2 As shown, an annular box 1 is sleeved on the outside of the trimming table 2. An annular filter plate 12 is fixedly connected to the top of the annular box 1. Several connecting pipes 17 arranged in an annular array are connected to the bottom of the annular box 1. The other end of the connecting pipe 17 is connected to the inside of the trimming table 2.
[0031] In this technical solution, an annular box 1 is set and fitted onto the outside of the trimming table 2 to form a surrounding outer structure. The bottom is connected to the inside of the trimming table 2 through several connecting pipes 17 arranged in an annular array to ensure bidirectional airflow. An annular filter plate 12 is set with densely packed filter holes on its surface to intercept the trimming tools and other objects of the workers, while allowing impurities such as flying debris and dust generated during the trimming process to pass through.
[0032] like Figure 2 As shown, a sealing plate 18 that is sleeved with a hydraulic rod 13 is fixedly connected to the inner side of the trimming table 2, and an air pump 3 is provided on one side of the trimming table 2.
[0033] In this technical solution, when the air pump 3 is working, the interior of the trimming table 2 needs to maintain a negative pressure state to form airflow circulation, and the sealing plate 18 can prevent air leakage.
[0034] Working principle: During operation, the motor 5 at the bottom of the trimming table 2 drives the hydraulic rod 13 to rotate, which in turn rotates the support platform 11. The motor 5 at the top of the mounting plate 4 drives the threaded rod 15 to rotate, which in turn moves the support rod 6 up and down within the slide groove 16, thereby adjusting the height of the fixing ring 14, the lead screw 7, and the fixing plate 8, so that the bottom of the fixing plate 8 is higher than the interior trim panel. Then, the hydraulic rod 13 extends, the support platform 11 lifts the interior trim panel, and the operator turns the lead screw 7, causing it to be threaded within the rotating sleeve 9, which in turn drives the fixing plate 8 to press down and fix the interior trim panel. During trimming, the vacuum pump 3 starts, creating a negative pressure inside the trimming table 2. The airflow carrying flying debris is sucked in from the annular filter plate 12 at the top of the annular box 1 and enters the interior of the trimming table 2 through the connecting pipe 17.
[0035] The wiring diagram of the motor 5 and the hydraulic rod 13 in this utility model is common knowledge in the field. Its working principle is a well-known technology. The appropriate model is selected according to the actual use. Therefore, the control method and wiring arrangement of the motor 5 and the hydraulic rod 13 will not be explained in detail.
[0036] Among them, motor 5 is preferably a servo motor.
[0037] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the present utility model.
Claims
1. A device for trimming the edges of an automotive interior panel, comprising a trimming station (2), characterized in that: A mounting plate (4) is fixedly connected to one side of the trimming table (2). A groove (16) is provided in the middle of the mounting plate (4). A support rod (6) is slidably connected in the groove (16) along the gravity distribution direction. A fixing ring (14) is fixedly connected to the other end of the support rod (6). A rotating sleeve (9) is rotatably connected in the fixing ring (14). A screw rod (7) is threaded in the rotating sleeve (9). A fixing plate (8) for fixing the car interior panel is fixedly connected to the bottom end of the screw rod (7). A hydraulic rod (13) is rotatably connected to the bottom of the trimming table (2). A support platform (11) for supporting the car interior panel is fixedly connected to the telescopic end of the hydraulic rod (13).
2. The automotive interior panel rough edge trimming device according to claim 1, characterized in that: The groove (16) is rotatably connected to a vertically distributed threaded rod (15), which is threadedly engaged with the support rod (6).
3. The automotive trim panel burr finishing device of claim 2, wherein: The bottom of the trimming table (2) and the top of the mounting plate (4) are both fixedly connected to motors (5). The main shaft of the motor (5) located at the bottom of the trimming table (2) passes through the bottom wall of the trimming table (2) and extends into the interior of the trimming table (2). The through end of the main shaft of the motor (5) located at the bottom of the trimming table (2) is fixed to the fixed end of the hydraulic rod (13). The main shaft of the motor (5) located at the top of the mounting plate (4) passes through the top wall of the mounting plate (4) and extends into the slide groove (16). The through end of the main shaft of the motor (5) located at the top of the mounting plate (4) is fixed to one end of the threaded rod (15).
4. The automotive trim panel burr finishing device of claim 1, wherein: Alignment blocks (10) are fixedly connected to one side of the fixed ring (14) and the other side of the rotating sleeve (9).
5. The automotive trim panel burr finishing device of claim 1, wherein: The trimming table (2) is fitted with an annular box (1) on the outside. An annular filter plate (12) is fixedly connected to the top of the annular box (1). Several connecting pipes (17) arranged in an annular array are connected to the bottom of the annular box (1). The other end of the connecting pipes (17) is connected to the inside of the trimming table (2).
6. The automotive interior panel rough edge trimming device according to claim 5, characterized in that: The inner side of the trimming table (2) is fixedly connected to a sealing plate (18) that is sleeved with the hydraulic rod (13).
7. The automotive trim panel burr finishing device of claim 6, wherein: An air pump (3) is installed on one side of the trimming table (2).