A double-edge trimming device for a plate

Abstract

The utility model provides a kind of plate double edge trimming device, including the waste collection box with open upper surface, the waste collection box front and back surface is all set with strip-shaped recess, synchronous motor is arranged in the strip-shaped recess, the output end of synchronous motor is connected with screw rod, the moving block is spirally sleeved on the left and right ends of screw rod, U-shaped moving seat is set between the moving block of front and back two ends, the inside surface of the transverse plate of U-shaped moving seat is provided with support plate, driving motor is set on the support plate, the output shaft end of driving motor is provided with cutting saw blade, and the cutting saw blade is set between the two vertical boards of U-shaped moving seat;The upper surface of the waste collection box is provided with guide rod at left and right ends, U-shaped moving plate is erected on the guide rod;The utility model can realize plate double edge trimming, improve trimming efficiency and precision and avoid secondary positioning error.

Description

Technical Field

[0001] This utility model relates to the field of sheet metal processing equipment technology, and in particular to a sheet metal double-sided trimming device. Background Technology

[0002] In the field of sheet metal processing, whether it's wood, plastic, or metal sheets, the edge trimming process is a crucial step in ensuring product dimensional accuracy and edge quality. Traditional manual hand-held cutting and trimming methods have many drawbacks: operators need to maintain a fixed posture for extended periods, resulting in high labor intensity and low efficiency; due to the instability of manual operation, problems such as poor edge straightness and large dimensional deviations are easily caused, seriously affecting product consistency; at the same time, the high-speed rotating cutting saw blade poses significant safety hazards, as flying debris not only pollutes the working environment but may also injure operators.

[0003] While existing semi-automatic trimming equipment has alleviated the burden on manual labor to some extent, it still has significant shortcomings. Most equipment adopts a single-sided trimming design. When trimming both sides of the sheet material is required, the sheet material must be repositioned and clamped. This not only increases the number of operation steps but also may cause non-parallel trimming due to secondary positioning errors. In addition, the waste collection systems of existing equipment are generally inadequate. Cutting debris easily accumulates inside the equipment or scatters into the working environment, increasing cleaning difficulty and potentially affecting the normal operating accuracy of the equipment. Especially during continuous operation, accumulated waste may interfere with the movement of the cutting mechanism or even cause equipment malfunction. Summary of the Invention

[0004] In view of this, the purpose of this utility model is to provide a double-sided trimming device for sheet metal that can achieve double-sided trimming of sheet metal, improve trimming efficiency and accuracy, and avoid secondary positioning errors.

[0005] This utility model employs the following method: a double-sided trimming device for sheet metal, comprising a waste collection box with an open upper surface. The waste collection box has strip-shaped grooves on both its front and rear surfaces. A synchronous motor is installed within each of the strip-shaped grooves. The output end of the synchronous motor is connected to a screw. Moving blocks are spirally fitted onto both ends of the screw. A U-shaped moving seat is positioned between the moving blocks at the front and rear ends. A support plate is installed on the inner side of the horizontal plate of the U-shaped moving seat. A drive motor is mounted on the support plate, and a cutting saw blade is installed at the end of the output shaft of the drive motor. Furthermore, the cutting saw blade is positioned between the two vertical plates of the U-shaped movable base; guide rods are provided at both ends of the upper surface of the waste collection box, and a U-shaped movable plate is mounted on the guide rods. Support bars are provided at both ends of the upper surface of the two vertical plates of the U-shaped movable plate, and a first telescopic cylinder is embedded in the middle of the support bars. A clamping block for clamping the plate is provided at the end of the telescopic rod of the first telescopic cylinder. A push plate is provided at the front end of the upper surface of the horizontal plate of the U-shaped movable plate, and a support plate for placing and mounting the plate is provided in the middle of the rear surface of the horizontal plate of the U-shaped movable plate.

[0006] Furthermore, the lower surfaces of the two vertical plates of the U-shaped movable plate are provided with arc-shaped sliding grooves that cooperate with the guide rod, and anti-detachment blocks are provided at both the front and rear ends of the guide rod.

[0007] Furthermore, a pushing protrusion is provided in the middle of the rear surface of the pushing plate.

[0008] Furthermore, the waste collection box is equipped with dust collection hoppers on both the left and right sides. The dust collection hoppers are equipped with dustproof nets at the dust collection end. The dust collection hoppers at both ends are connected by a U-shaped dust collection pipe, which is connected to an external dust collection pipe.

[0009] Furthermore, an L-shaped support plate is provided in the middle of the upper surface of the push plate, and a second telescopic cylinder is embedded in the L-shaped support plate. The end of the telescopic rod of the second telescopic cylinder is provided with a pressing plate for pressing and limiting the plate.

[0010] The beneficial effects of this utility model are as follows: This utility model uses a synchronous motor to drive a screw to move a moving block and a U-shaped moving seat synchronously, and works with a cutting saw blade to achieve synchronous edge trimming on both sides of the board. At the same time, it uses a waste collection box and a dust collection system to automatically collect debris, which solves the problems of low efficiency, large secondary positioning error and waste splashing of manual operation. It has the advantages of improving trimming efficiency and accuracy, avoiding secondary positioning error and realizing automatic waste collection. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of the present invention in its first state.

[0012] Figure 2This is a structural schematic diagram of the second state of this utility model.

[0013] Figure 3 This is a structural diagram of the present invention in use. Detailed Implementation

[0014] The present invention will be further described below with reference to the accompanying drawings.

[0015] Please see Figures 1 to 3 As shown, this utility model provides an embodiment: a double-sided trimming device for sheet metal, including a waste collection box 1 with an open upper surface. The waste collection box 1 has strip-shaped grooves 11 on both its front and rear surfaces. A synchronous motor (not shown) is installed within each strip-shaped groove 11. The output end of the synchronous motor is connected to a screw 12. Moving blocks (not shown) are spirally fitted onto both ends of the screw 12. A U-shaped moving seat 2 is positioned between the moving blocks at the front and rear ends. A support plate 3 is provided on the inner side of the horizontal plate of the U-shaped moving seat 2. A drive motor 31 is installed on the support plate 3. A cutting saw blade is installed at the end of the output shaft of the drive motor 31. 32, and the cutting saw blade 32 is disposed between the two vertical plates of the U-shaped movable seat 2; the waste collection box 1 is provided with guide rods 4 at both ends of the upper surface, and a U-shaped movable plate 5 is mounted on the guide rods 4. The upper surfaces of the two vertical plates of the U-shaped movable plate 5 are provided with support bars 51 at both ends. A first telescopic cylinder 52 is embedded in the middle of the support bar 51. A clamping block 53 for clamping the plate is provided at the end of the telescopic rod of the first telescopic cylinder 52. A push plate 54 is provided at the front end of the horizontal plate of the U-shaped movable plate 5. A mounting plate 55 for placing and mounting the plate is provided in the middle of the rear surface of the horizontal plate of the U-shaped movable plate 54.

[0016] The waste collection box is a box-shaped structure with an open top and internal storage space, typically formed by welding steel plates, used to collect cutting debris. The grooved section is a slotted structure along the length of the box, typically milled, used to house the synchronous motor and transmission components. The synchronous motor is a drive device with a synchronized output shaft speed, typically a servo motor with encoder control to ensure synchronized displacement of the moving blocks on both sides. The screw is a drive shaft with helical grooves, typically a trapezoidal threaded rod, which drives the moving blocks linearly through rotation. The moving block is a sliding component that engages with the screw thread, typically a copper nut seat, for power transmission and position adjustment. The U-shaped moving base is a frame structure composed of a horizontal plate and two vertical plates, typically made of aluminum alloy profiles, used to support the cutting components. The support plate is a mounting base fixed to the inside of the horizontal plate, typically bolted steel plates, providing stable support for the drive motor. The drive motor is the device that outputs rotational power, typically a three-phase asynchronous motor, driving the cutting saw blade to rotate at high speed. A cutting saw blade is a circular blade with serrated edges, typically made of carbide, used to remove excess material from the edges of sheet metal. A guide rod is a parallel cylindrical guide rail, typically made of chrome-plated steel, used to guide the U-shaped moving plate along a set path. The U-shaped moving plate is a movable frame with vertical and horizontal plates, typically welded from rectangular steel tubing, used to clamp and push the sheet metal. A support bar is a strip-shaped structure along the length of the vertical plate, typically fixed with angle steel, used to mount a telescopic cylinder. The first telescopic cylinder is the actuator that outputs linear motion, typically a pneumatic cylinder, which uses a telescopic rod to clamp or release the sheet metal. The clamping block is the clamping component in contact with the sheet metal, typically a rubber-coated metal block to prevent damage to the sheet metal surface. The push plate is a flat structure fixed to the front end of the horizontal plate, typically made of bent steel plate, used to push the sheet metal into the processing area. The support plate is a supporting structure located behind the horizontal plate, typically made of mesh steel plate, used to temporarily hold the sheet metal to be processed.

[0017] Specifically, the sheet material is placed on the support plate, and its position is fixed by the clamping block driven by the first telescopic cylinder. The push plate moves forward, pushing the sheet material to the cutting area. The synchronous motor drives the screw to rotate, causing the two moving blocks on both sides to move along the screw axis, resulting in a lateral displacement of the entire U-shaped moving seat. The drive motor drives the cutting saw blade to rotate, simultaneously trimming the edges of both sides of the sheet material. Waste chips fall into the waste collection box to prevent them from scattering and polluting the environment. The guide rod ensures that the U-shaped moving plate moves in a straight line, preventing deviation that could cause uneven trimming.

[0018] Compared to existing technologies, traditional equipment requires processing the edges of the sheet material twice. This solution achieves simultaneous edge trimming on both sides through the synchronous movement of symmetrical cutting components, reducing operational steps. A waste collection box centrally collects waste materials, improving the workshop environment. The clamping block and push plate work together to achieve automatic positioning, reducing the frequency of manual intervention and improving processing accuracy.

[0019] Through the above technical solution, this application solves the problems of low efficiency and parallelism error caused by the need for secondary positioning in traditional trimming equipment, achieving simultaneous trimming on both sides. The waste collection structure effectively controls cutting chips, reducing cleaning workload. The automated clamping and pushing mechanism improves processing consistency and reduces reliance on operator skills.

[0020] Please continue reading. Figures 1 to 3 As shown, in one embodiment of the present invention, the lower surfaces of the two vertical plates of the U-shaped moving plate 5 are provided with arc-shaped sliding grooves 56 that cooperate with the guide rod 4, and anti-detachment blocks 57 are provided at both the front and rear ends of the guide rod 4.

[0021] Among them, the arc-shaped groove refers to the semi-circular groove opened on the lower surface of the vertical plate of the U-shaped moving plate. Its curvature matches the outer contour of the guide rod. Specifically, it can be achieved by machining or casting process. It is used to limit the lateral displacement of the U-shaped moving plate on the guide rod and ensure that the movement direction is linear and controllable.

[0022] Among them, the anti-detachment block refers to the limiting component fixed to the end of the guide rod. Specifically, it can be implemented by welding or bolting a metal block to prevent the arc-shaped slide from slipping off the end of the guide rod and to prevent the U-shaped moving plate from accidentally detaching from the guide rod during equipment operation.

[0023] Specifically, the U-shaped moving plate slides along the guide rod via an arc-shaped groove on its lower surface, allowing it to move linearly along the guide rod during the plate-pushing process. The arc of the groove closely matches the outer diameter of the guide rod, reducing sliding friction and limiting lateral deviation to ensure the straightness of the pushing path. Anti-detachment blocks are fixed at both ends of the guide rod. When the U-shaped moving plate reaches the extreme position at the end of the guide rod, the edge of the arc-shaped groove contacts the anti-detachment block, preventing the moving plate from sliding off and avoiding equipment damage due to inertia or operational errors.

[0024] Compared with existing technologies, traditional equipment often uses a planar sliding fit between the moving plate and the guide rod, which is prone to displacement due to vibration or uneven force, resulting in deviation of the plate's pushing trajectory. In contrast, this application uses an arc-shaped groove and a curved surface fit with the guide rod to constrain the sliding contact surface to a single degree of freedom, eliminating the risk of lateral displacement. The anti-detachment block further enhances the connection stability between the moving plate and the guide rod, avoiding mechanical failures caused by excessive stroke.

[0025] Through the above technical solution, this application effectively solves the positioning error problem caused by the unstable sliding of the moving plate during the plate feeding process, reduces the number of manual adjustments, and lowers the scrap rate caused by secondary positioning. At the same time, the anti-detachment design improves the safety of equipment operation and avoids the risk of production interruption or personal injury caused by accidental detachment of the moving plate.

[0026] Please continue reading. Figures 1 to 3 As shown in one embodiment of the present invention, a pushing protrusion 58 is provided in the middle of the rear surface of the pushing plate 54.

[0027] The push plate refers to the plate-like structure used to move the sheet material. It can be made of metal or high-strength plastic, such as a 5mm thick aluminum alloy plate. The push protrusion is a localized protrusion located in the middle of the rear surface of the push plate. It can be implemented using a hemispherical boss or a trapezoidal protrusion, such as an 8mm high stainless steel protrusion. The push protrusion increases the friction with the contact surface of the sheet material, preventing the sheet material from sliding or shifting during the pushing process.

[0028] Specifically, the pusher plate uses a pusher protrusion to make point contact with the end face of the sheet metal. After the first telescopic cylinder drives the clamping block to fix the sheet metal, the U-shaped moving plate moves along the guide rod, and the pusher protrusion abuts against the edge of the sheet metal with concentrated force. The pusher protrusion is made of wear-resistant material, and its curved edge reduces damage to the edges and corners of the sheet metal. When the pusher protrusion contacts the sheet metal, it forms a three-point support structure, which automatically corrects the horizontal deviation of the sheet metal during the pushing process.

[0029] Compared to existing technologies, traditional trimming equipment uses a planar contact method for the push plate, which makes the plate prone to sliding displacement due to inertia. The push protrusion in this application enhances frictional resistance through localized contact, creating a self-locking effect during the pushing process and effectively preventing positional displacement of the plate during high-speed movement. The point contact method of the push protrusion reduces the contact area compared to planar contact, lowering the probability of surface scratches on the plate.

[0030] Through the above technical solution, this application solves the problem of insufficient positioning accuracy during the sheet material pushing process. The pushing protrusion, by enhancing frictional resistance and self-locking effect, ensures that the sheet material maintains a stable posture during movement, avoiding trimming dimensional errors caused by positional deviation. This structure effectively improves the parallelism of the sheet material's two-sided trimming, reduces the scrap rate caused by positioning deviation, and simultaneously reduces the workload of manually adjusting the sheet material's position.

[0031] Please continue reading. Figures 1 to 3 As shown in one embodiment of the present invention, the waste collection box 1 is provided with a dust collection hopper 6 on both the left and right sides. The dust collection end of the dust collection hopper 6 is provided with a dustproof net 61. The dust collection hoppers 6 at both ends are connected by a U-shaped dust collection pipe 62. The U-shaped dust collection pipe 62 is connected to an external dust collection pipe 63.

[0032] Among them, the dust collection hopper refers to the funnel-shaped structure installed on the side of the waste collection box and having a dust collection function. It can be made of metal or plastic. Its dust collection end can be designed as a funnel-shaped opening to expand the adsorption range and is used to collect the debris generated during the cutting process.

[0033] The dust filter is a filtration device covering the suction end of the dust collection hopper. It can be made of stainless steel wire mesh or nylon filter cloth, with a mesh size of 0.5-2 mm. It is used to block large pieces of debris from entering the suction system and prevent pipe blockage. The U-shaped suction pipe is a curved pipe connecting the left and right dust collection hoppers. It can be made of rigid PVC pipe or corrugated metal pipe. Its U-shaped structure extends along the bottom of the waste collection box, forming a centralized debris conveying channel.

[0034] The external suction pipe refers to the extension pipe connected to the end of the U-shaped suction pipe. Specifically, it can be connected to an industrial vacuum cleaner or a central dust collection system, and the debris is continuously drawn out from the inside of the collection box through negative pressure.

[0035] Specifically, after the saw blade generates debris during trimming, it falls into the waste collection box. The dust collection hoppers on both sides, with their funnel-shaped openings, then collect the debris. Dust screens intercept oversized pieces during the collection process, preventing them from entering the pipes and causing blockages. The two dust collection hoppers are connected by a U-shaped suction pipe, allowing the debris to be drawn towards the center of the pipe under negative pressure, and finally discharged through an external suction pipe to the dust removal equipment. During this process, the curved design of the U-shaped pipe reduces debris accumulation while maintaining unobstructed airflow.

[0036] Compared to existing technologies, traditional trimming equipment typically only has a simple collection trough at the bottom, leading to easy accumulation and difficulty in cleaning of debris. This solution utilizes an active adsorption piping system to achieve continuous collection and directional transport of debris, eliminating the need for manual cleaning. Simultaneously, the dust filter solves the frequent clogging problem caused by debris directly entering the dust extraction system in traditional equipment, significantly improving the stability of equipment operation.

[0037] Through the above technical solution, this application effectively solves the problems of environmental pollution caused by flying debris and difficulties in equipment maintenance during trimming operations. Debris is promptly sucked into a closed pipeline system, keeping the work area clean and eliminating the need for operators to frequently stop the machine to clean the collection box. The combined use of the dustproof net and U-shaped pipe ensures the long-term stable operation of the dust collection system and reduces the equipment failure rate.

[0038] Please continue reading. Figures 1 to 3As shown, in one embodiment of the present invention, an L-shaped support plate 7 is provided in the middle of the upper surface of the push plate 54, and a second telescopic cylinder 71 is embedded in the L-shaped support plate 7. The end of the telescopic rod of the second telescopic cylinder 71 is provided with a pressing plate 72 for pressing and limiting the plate.

[0039] The L-shaped support plate is a plate-like structure with vertical and horizontal planes perpendicularly connected to each other. It can be formed by bending or welding steel plates. Its vertical plane is used to fix the second telescopic cylinder, and its horizontal plane is connected to the push plate via bolts, forming a stable support structure. The second telescopic cylinder is an actuator that achieves linear reciprocating motion driven by pneumatic pressure. It can be a double-acting cylinder controlled by a solenoid valve. Its cylinder body is embedded in the L-shaped support plate and fixed by a flange. The end of the telescopic rod is connected to a pressing plate to transmit pressure. The pressing plate is a rigid or elastic pressing component that contacts the surface of the plate. It can be a metal plate with a rubber-coated surface. Driven by the second telescopic cylinder, it achieves vertical lifting and lowering movements, applying vertical pressure to the plate during the pushing process to prevent displacement.

[0040] Specifically, when the sheet material is pushed forward by the push plate to the cutting station, the second telescopic cylinder is activated and drives the pressing plate downward, bringing it into contact with the upper surface of the sheet material and applying vertical pressure. This pressure, combined with the forward thrust of the push plate, effectively counteracts the lateral displacement of the sheet material caused by inertia or vibration during high-speed pushing. The L-shaped support plate, through a rigid connection, elevates the installation position of the second telescopic cylinder above the push plate, avoiding interference with the pushing path and ensuring that the pressing force acts perpendicularly on the central area of ​​the sheet material.

[0041] Compared to existing technologies, traditional trimming equipment relies solely on a single-point clamping block for fixation when pushing the sheet material. This can lead to warping or displacement of the sheet material's front end during the pushing process due to uneven force. This solution adds a liftable pressing plate to the pushing plate, dynamically pressing the sheet material during the pushing phase. This eliminates positioning deviations caused by inertia or mechanical vibration, ensuring the sheet material maintains a stable linear trajectory throughout the cutting process.

[0042] Through the above technical solution, this application solves the problem of easy displacement of the board material during the pushing process of traditional trimming equipment, which leads to the deviation of trimming size. By applying pushing force and vertical pressing force simultaneously, the board material is accurately positioned at the cutting station, improving the parallelism and size consistency of the two-sided trimming and reducing the scrap rate caused by positioning error.

[0043] The telescopic cylinder and drive motor in this utility model are both existing technologies, which are already clearly understood by those skilled in the art, and will not be described in detail here.

[0044] The above description is only a preferred embodiment of the present utility model. All equivalent changes and modifications made within the scope of the patent application of the present utility model shall be covered by the present utility model.

Claims

1. A double-sided trimming device for sheet metal, characterized in that: The device includes a waste collection box with an open upper surface. Both the front and rear surfaces of the waste collection box have strip-shaped grooves. A synchronous motor is installed within each of these grooves. The output end of the synchronous motor is connected to a screw. Moving blocks are spirally fitted onto both ends of the screw. A U-shaped moving seat is positioned between the moving blocks at the front and rear ends. A support plate is provided on the inner side of the horizontal plate of the U-shaped moving seat. A drive motor is mounted on the support plate. A cutting saw blade is installed at the end of the output shaft of the drive motor, and the cutting saw blade is positioned between the two vertical plates of the U-shaped moving seat. Guide rods are provided on both the left and right ends of the upper surface of the waste collection box. A U-shaped moving plate is mounted on the guide rods. Support bars are provided on both the left and right ends of the upper surfaces of the two vertical plates of the U-shaped moving plate. A first telescopic cylinder is embedded in the middle of the support bars. A clamping block for holding the plate is provided at the end of the telescopic rod of the first telescopic cylinder. A push plate is provided at the front end of the upper surface of the horizontal plate of the U-shaped moving plate. A support plate for placing the supporting plate is provided in the middle of the rear surface of the horizontal plate of the U-shaped moving plate.

2. The double-sided trimming device for sheet metal according to claim 1, characterized in that: The lower surfaces of the two vertical plates of the U-shaped movable plate are provided with arc-shaped sliding grooves that cooperate with the guide rod, and anti-detachment blocks are provided at both the front and rear ends of the guide rod.

3. The double-sided trimming device for sheet metal according to claim 1, characterized in that: A pushing protrusion is provided in the middle of the rear surface of the pushing plate.

4. The double-sided trimming device for sheet metal according to claim 1, characterized in that: The waste collection box is equipped with dust collection hoppers on both the left and right sides. The dust collection hoppers are equipped with dustproof nets at the dust collection end. The dust collection hoppers at both ends are connected by a U-shaped dust collection pipe, which is connected to an external dust collection pipe.

5. The double-sided trimming device for sheet metal according to claim 1, characterized in that: An L-shaped support plate is provided in the middle of the upper surface of the push plate, and a second telescopic cylinder is embedded in the L-shaped support plate. The end of the telescopic rod of the second telescopic cylinder is provided with a pressing plate for pressing and limiting the plate.

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