Edge cutting device for air duct back plate

Abstract

The utility model discloses an edge cutting device for an air duct back plate, and belongs to the technical field of air duct back plate machining devices. Comprising a base and a top plate, a bearing plate is arranged at the upper end of the base, the top plate is fixedly connected with the bearing plate through a hydraulic push rod, a rotating disc is arranged on the base, a workbench is fixedly arranged above the rotating disc, and a fixing plate is fixedly arranged at the upper end of the workbench. The edge cutting device solves the problems that in the prior art, an edge cutting device is only provided with a single cutter, the cutting efficiency is low, the cutter can only be fixed to one position to do horizontal reciprocating motion, the height cannot be adjusted, and using is not convenient enough, by arranging the two cutters, double-side cutting is achieved, the cutting efficiency is improved, and the edge cutting device is convenient to use through telescopic motion of the electric push rod. The position of the cutting knife can be adjusted according to needs, the cutting effect is better, use is more convenient, the top plate can be driven to ascend and descend through telescopic movement of the hydraulic push rod, and then the distance between the cutting knife and the air duct back plate is adjusted.

Description

Technical Field

[0001] The utility model relates to the technical field of air duct back plate processing devices, in particular to an air duct back plate trimming device. Background Art

[0002] The refrigerator air duct back panel is an important component of the refrigerator air duct. Air inlets and multiple air outlets are set on the air duct back panel to realize air supply at different positions. The refrigerator air duct back panel needs to be trimmed during production and processing. The existing Chinese patent with publication number CN211333404U discloses a household appliance aluminum-plastic back panel trimming device: the patent facilitates the cutting of the aluminum-plastic back panel through the linkage relationship between the slide rail, T-shaped slider, mounting seat, drive motor, rotating rod, cutting blade, rack, gear and forward and reverse motor. Through the cooperation of the rack and gear, the T-shaped slider is driven to run back and forth on the slide rail, so that the edge of the cut aluminum-plastic back panel is neat. Through the linkage relationship between the screw, cylinder, cross hole, movable block and pressing plate, it is convenient to fix and press back panels of different sizes to avoid back panel offset during cutting and cutting error.

[0003] However, the above-mentioned prior art solutions also have the following defects:

[0004] The existing trimming device is only equipped with a single cutter, which has low cutting efficiency. The cutter can only be fixed in one position and reciprocate horizontally, and the height cannot be adjusted, which makes it inconvenient to use. Utility Model Content

[0005] The utility model aims to solve at least one of the technical problems existing in the prior art.

[0006] To this end, one purpose of the utility model is to propose a trimming device for the back panel of the air duct. By setting two cutting knives, bilateral cutting is achieved, thereby improving the cutting efficiency. Through the telescopic movement of the electric push rod, the position of the cutting knife can be adjusted according to demand, so that the cutting effect is better and the use is more convenient. Through the telescopic movement of the hydraulic push rod, the top plate can be driven to rise and fall, thereby adjusting the distance between the cutting knife and the back panel of the air duct.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a trimming device for an air duct back plate, comprising a base and a top plate, a supporting plate being provided at the upper end of the base, the top plate being fixedly connected to the supporting plate by a hydraulic push rod, a turntable being provided on the base, a workbench being fixedly provided above the turntable, a fixing plate being fixedly provided at the upper end of the workbench, a pneumatic push rod being installed on the inner wall of the fixing plate, and a positioning plate being fixedly provided at the lower end of the pneumatic push rod.

[0008] Preferably, the base is in a U-shape, a first motor is installed inside the base, and an output end of the first motor is connected to the turntable.

[0009] Preferably, a screw rod is provided below the top plate, the screw rod is connected to the top plate via a connecting plate, and guide rods are provided at the front and rear ends of the screw rod.

[0010] Preferably, a moving block is provided on the screw rod, a second motor is provided on one side of the screw rod, and an output end of the second motor is transmission-connected to the screw rod.

[0011] Preferably, mounting plates are provided on both sides of the moving block, and the mounting plates are fixedly connected to the moving block via electric push rods.

[0012] Preferably, a third motor is provided on a side of the mounting plate away from the electric push rod, and a cutting blade is provided on an output end of the third motor.

[0013] Preferably, a groove is provided inside the positioning plate, a pressure plate is movably provided inside the groove, and the pressure plate is fixedly connected to the positioning plate via a spring.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0015] 1. The utility model provides a trimming device for the back panel of the air duct. By setting two cutting knives, double-sided cutting is achieved, thereby improving cutting efficiency. The position of the cutting knife can be adjusted according to demand through the telescopic movement of the electric push rod, so that the cutting effect is better and the use is more convenient. The telescopic movement of the hydraulic push rod can drive the top plate to rise and fall, thereby adjusting the distance between the cutting knife and the back panel of the air duct.

[0016] 2. The utility model provides a trimming device for the back panel of an air duct. By starting the first motor, its output end drives the turntable and the workbench to rotate together, so that the air duct back panel on the workbench can be irregularly trimmed according to needs. The waste generated by the trimming falls into the material trough of the base. The supporting plate and the base are detachable, which is convenient for cleaning the waste in the base later. Through the setting of the pressure plate and the spring, when the positioning plate descends and approaches the air duct back panel, the pressure plate inside it contacts the air duct back panel first, and plays a buffering role under the action of the spring, thereby avoiding deformation of the air duct back panel due to excessive local pressure. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the top plate structure of the present invention when viewed from above;

[0019] Figure 3 This is a schematic diagram of the cross-sectional structure of the base of the present utility model;

[0020] Figure 4This is a schematic diagram of the cross-sectional structure of the positioning plate of the present utility model.

[0021] In the figure: 1. Base; 2. Top plate; 3. Hydraulic push rod; 4. Workbench; 101. First motor; 102. Turntable; 103. Loading plate; 201. Screw rod; 202. Guide rod; 203. Second motor; 204. Moving block; 205. Electric push rod; 206. Cutting knife; 207. Third motor; 208. Mounting plate; 401. Fixing plate; 402. Groove; 403. Pneumatic push rod; 404. Positioning plate; 405. Pressure plate; 406. Spring. DETAILED DESCRIPTION

[0022] 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 embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0023] In order to solve the technical problems in the prior art where the trimming device is only equipped with a single cutter, the cutting efficiency is low, the cutter can only be fixed in one position for horizontal reciprocating motion, and the height cannot be adjusted, which is not convenient to use, please refer to Figure 1-4 , providing the following technical solutions:

[0024] In this embodiment, a trimming device for an air duct back panel includes a base 1 and a top plate 2. A supporting plate 103 is provided at the upper end of the base 1. The top plate 2 is fixedly connected to the supporting plate 103 by a hydraulic push rod 3. A turntable 102 is provided on the base 1. A workbench 4 is fixedly provided above the turntable 102. A fixing plate 401 is fixedly provided at the upper end of the workbench 4. A pneumatic push rod 403 is installed on the inner wall of the fixing plate 401. A positioning plate 404 is fixedly provided at the lower end of the pneumatic push rod 403. The telescopic movement of the hydraulic push rod 3 can drive the top plate 2 to rise and fall, thereby adjusting the distance between the cutting knife 206 and the air duct back panel. The supporting plate 103 and the base 1 are detachable, which is convenient for cleaning the waste material in the base 1. The air duct back panel is placed on the upper end of the workbench 4, and the positioning plate 404 is driven down by the pneumatic push rod 403 to achieve the positioning of the air duct back panel, thereby ensuring stability during the cutting process.

[0025] In this embodiment, a groove 402 is provided inside the positioning plate 404, and a pressure plate 405 is movably provided inside the groove 402. The pressure plate 405 is fixedly connected to the positioning plate 404 through a spring 406. When the positioning plate 404 descends and approaches the air duct back plate, the pressure plate 405 inside it contacts the air duct back plate first and acts as a buffer under the action of the spring 406, thereby preventing the air duct back plate from being deformed due to excessive local pressure.

[0026] In this embodiment, the base 1 is in a shape of a Chinese character 'hui', and a first motor 101 is installed inside the base 1. The output end of the first motor 101 is connected to a turntable 102. By starting the first motor 101, its output end drives the turntable 102 and the workbench 4 to rotate together, facilitating irregular trimming of the air duct backplate on the workbench 4 according to requirements.

[0027] In this embodiment, a lead screw 201 is provided below the top plate 2. The lead screw 201 is connected to the top plate 2 through a connecting plate. Guide rods 202 are provided at both the front end and the rear end of the lead screw 201. A moving block 204 is provided on the lead screw 201. A second motor 203 is provided on one side of the lead screw 201, and the output end of the second motor 203 is in transmission connection with the lead screw 201. Mounting plates 208 are provided on both sides of the moving block 204. The mounting plates 208 are fixedly connected to the moving block 204 through electric push rods 205. A third motor 207 is provided on the side of the mounting plate 208 away from the electric push rod 205. A cutting knife 206 is provided on the output end of the third motor 207. By starting the second motor 203, the lead screw 201 is driven to rotate, causing the moving block 204 to reciprocate on the lead screw 201. The third motor 207 drives the cutting knife 206 to rotate, realizing trimming of the air duct backplate by the cutting knife 206. By providing two cutting knives 206, double-sided cutting is achieved, improving the cutting efficiency. Through the telescopic movement of the electric push rod 205, the position of the cutting knife 206 can be adjusted according to requirements, making the cutting effect better and the use more convenient.

[0028] Working principle: During use, place the air duct backplate on the upper end of the workbench 4. The positioning plate 404 is lowered by the pneumatic push rod 403 to achieve positioning of the air duct backplate. Through the telescopic movement of the hydraulic push rod 3, the top plate 2 can be lifted and lowered, thereby adjusting the distance between the cutting knife 206 and the air duct backplate. By starting the second motor 203 and the third motor 207, after the lead screw 201 is driven to rotate, the moving block 204 reciprocates on the lead screw 201, realizing trimming of the air duct backplate by the cutting knife 206. Through the telescopic movement of the electric push rod 205, the position of the cutting knife 206 can be adjusted according to requirements, making the cutting effect better. By starting the first motor 101, its output end drives the turntable 102 and the workbench 4 to rotate together, facilitating irregular trimming of the air duct backplate on the workbench 4 according to requirements. The waste generated during trimming falls into the material trough of the base 1. The bearing plate 103 is detachable from the base 1, facilitating later cleaning of the waste inside the base 1.

[0029] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0030] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A trimming device for a duct back plate, comprising a base (1) and a top plate (2), characterized in that: A bearing plate (103) is arranged at the upper end of the base (1), and the top plate (2) is fixedly connected to the bearing plate (103) via a hydraulic push rod (3). A turntable (102) is arranged on the base (1), and a workbench (4) is fixedly arranged above the turntable (102). A fixing plate (401) is fixedly arranged at the upper end of the workbench (4), and a pneumatic push rod (403) is installed on the inner wall of the fixing plate (401), and a positioning plate (404) is fixedly arranged at the lower end of the pneumatic push rod (403).

2. The trimming device for the back plate of an air duct according to claim 1, characterized in that: The base (1) is in the shape of a Chinese character "Yu". A first motor (101) is installed inside the base (1), and an output end of the first motor (101) is connected to a rotating disk (102).

3. The trimming device for the back plate of an air duct according to claim 1, characterized in that: A screw rod (201) is arranged below the top plate (2), the screw rod (201) is connected to the top plate (2) via a connecting plate, and guide rods (202) are arranged at the front and rear ends of the screw rod (201).

4. The trimming device for the back plate of the air duct according to claim 3, characterized in that: A moving block (204) is arranged on the screw rod (201), a second motor (203) is arranged on one side of the screw rod (201), and an output end of the second motor (203) is transmission-connected to the screw rod (201).

5. The trimming device for the back plate of the air duct according to claim 4, characterized in that: Mounting plates (208) are provided on both sides of the moving block (204), and the mounting plates (208) are fixedly connected to the moving block (204) via an electric push rod (205).

6. The trimming device for the back plate of an air duct according to claim 5, characterized in that: A third motor (207) is arranged on a side of the mounting plate (208) away from the electric push rod (205), and a cutting knife (206) is arranged on an output end of the third motor (207).

7. The trimming device for the back plate of an air duct according to claim 1, characterized in that: The positioning plate (404) is provided with a groove (402) inside, and a pressure plate (405) is movably provided inside the groove (402), and the pressure plate (405) is fixedly connected to the positioning plate (404) via a spring (406).

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