Automatic blanking device for metal plate cutting

Abstract

The automatic discharging device for metal plate cutting comprises a first conveying belt and a second conveying belt, the first conveying belt is higher than the second conveying belt, a lifting mechanism is arranged at the end, close to the second conveying belt, of the first conveying belt and comprises a lifting plate and a plurality of lifting rails, and the lifting rails are divided into two groups; the two sets of lifting rails are located on the two sides of the first conveying belt correspondingly, the lifting plate is slidably connected between the two sets of lifting rails, the lifting plate is fixedly connected with a driver for driving the lifting plate to ascend and descend, and the surface of the lifting plate is flush with the surface of the second conveying belt when the lifting plate slides to the lowermost portion. A pushing mechanism is arranged at the end, away from the second conveying belt, of the lifting plate. According to the device, the high conveying belt and the low conveying belt are matched and connected together through the lifting mechanism, the automatic discharging process after metal plate cutting is achieved, manual intervention is reduced, continuous shearing and conveying operation is achieved, the shutdown time is shortened, and the production efficiency is improved.

Description

Technical Field

[0001] The invention belongs to the field of sheet metal cutting, and in particular relates to an automatic blanking device for sheet metal cutting. Background Art

[0002] Sheet metal processing is an important part of modern manufacturing and is widely used in many fields such as automobiles, aviation, home appliances, and construction. In the process of sheet metal processing, cutting is a common process used to cut metal sheets into the required shape and size according to design requirements. However, the cut sheet metal parts usually have very sharp edges, which can easily cut the operator's palm during the picking process. The existing solution is usually to let the operator wear gloves to pick them up, but during the picking process, scratches may be left on the surface of the sheet metal parts, and larger sheet metal parts may require multiple people to operate together when picking them up. The high dependence on manual labor increases labor intensity and cost, and is inefficient and unsafe. These problems not only affect production efficiency, but may also have an adverse impact on operator safety and product quality. Summary of the invention

[0003] The present invention aims to provide an automatic unloading device for sheet metal cutting, so as to solve the problem that the existing sheet metal parts need to be picked up manually after cutting, which increases the labor intensity and cost and reduces the efficiency.

[0004] An automatic sheet metal cutting unloading device in the present scheme includes a first conveyor belt and a second conveyor belt, the first conveyor belt is higher than the second conveyor belt, and the conveying directions of the two conveyor belts are the same, the top end of the first conveyor belt is fixedly connected to a frame, and the frame is slidably connected to a shearing knife on the side facing the first conveyor belt, and a lifting mechanism is provided at one end of the first conveyor belt close to the second conveyor belt, the lifting mechanism includes a lifting plate and a plurality of lifting rails, the plurality of lifting rails are divided into two groups, the two groups of lifting rails are respectively located on both sides of the first conveyor belt, the lifting plate is slidably connected between the two groups of lifting rails, and the lifting plate is fixedly connected to a driver for driving it to rise and fall, and the surface of the lifting plate is flush with the surface of the second conveyor belt when the lifting plate slides to the bottom, and a pushing mechanism is provided at one end of the lifting plate away from the second conveyor belt.

[0005] The working principle of this solution is as follows: when in use, the sheet metal parts to be cut are placed on the surface of the first conveyor belt, and after alignment, they are placed under the rack. After being conveyed to the desired position, the shearing knife is started, and the shearing knife descends to cut the sheet metal parts located below. The cut sheet metal parts are conveyed by the first conveyor belt, and after reaching the top of the lifting plate of the lifting mechanism, the driver of the lifting plate is started to drive the lifting plate and the sheet metal parts above to descend until the surface of the lifting plate is flush with the surface of the second conveyor belt. Then, the pushing mechanism at the rear can be opened to push the sheet metal parts on the surface of the lifting plate to the surface of the second conveyor belt, and the second conveyor belt conveys the sheet metal parts to the pallet or shelf at the rear for storage.

[0006] Beneficial effects: 1. The device is equipped with two conveyor belts. The height difference of the conveyor belts is used to divide them into pre-cutting conveying and post-cutting conveying, and a lifting mechanism is used to connect them together, realizing the process of automatic unloading after sheet metal cutting, reducing manual intervention and improving production efficiency;

[0007] 2. Through the cooperation of high and low conveyor belts, continuous shearing and conveying operations are realized, which reduces the downtime and effectively improves the production efficiency;

[0008] 3. The sheared sheet metal parts are transported to the second conveyor belt through the lifting mechanism, and then transported from the second conveyor belt to the pallet or shelf at the rear for storage. The whole process reduces the operator's handling process and the intensity of manual labor, which improves safety and production efficiency at the same time;

[0009] 4. The sheet metal parts are transported to the pallets or shelves at the rear for storage, avoiding wear and scratches on the surface of the sheet metal parts caused by frequent handling, and improving the subsequent product quality and yield rate.

[0010] Furthermore, a track is provided on the surface of the lifting plate, one end of which extends from one set of lifting tracks to another set of lifting tracks, and two positioning sliders are slidably connected in the track, and both positioning sliders are fixedly connected to a driver for driving them to translate, and the two positioning sliders are symmetrical to each other. When the sheet metal parts are transferred to the lifting plate, the drivers of the positioning sliders on both sides can be activated to drive the positioning sliders to slide from both ends to the center, and the sheet metal parts on the surface of the lifting plate are fixed to the center position of the lifting plate, which plays a role in positioning the sheet metal parts.

[0011] Furthermore, an infrared sensor is provided on one side of the first conveyor belt close to the lifting plate, and the infrared sensor is connected to an external controller through an electrical signal, and the sensing end of the infrared sensor is flush with the surface of the first conveyor belt. When there are sheet metal parts on the surface of the lifting plate, the infrared sensor senses that the surface of the lifting plate is not flush with the surface of the first conveyor belt, and transmits it to the external controller, and the external controller can start the driver of the lifting plate, drive the lifting plate down to the position where the surface of the sheet metal parts is flush with the surface of the first conveyor belt. When a certain amount of sheet metal parts are piled up on the surface of the lifting plate, the driver can be started to drive the lifting plate down to the position flush with the surface of the second conveyor belt, and multiple sheet metal parts can be transported together. Because the thickness of the sheet metal parts is relatively thin, it is not easy to cause tipping when multiple pieces are piled together, so they can be transported together. This method can greatly increase production efficiency.

[0012] Furthermore, a limiting mechanism is provided at one end of the lifting plate close to the second conveyor belt, the limiting mechanism is fixedly connected to the first conveyor belt, the limiting mechanism includes a limiting plate and two extension plates, the two extension plates are respectively fixedly connected to the two sides of the first conveyor belt, the two extension plates are horizontally extended, the side walls of the two extension plates are fixedly connected with extension slide rails, the two ends of the limiting plate are respectively slidably connected to the two extension slide rails, the limiting plate is fixedly connected with a driver for driving its translation, the lifting mechanism is located between the limiting mechanism and the first conveyor belt, and the top of the limiting plate is higher than the top of the lifting plate. After the sheet metal is transferred to the lifting plate, the limiting plate can prevent the sheet metal from sliding off the lifting plate and limit the front end of the sheet metal. If the sheet metal is larger than the width from the lifting plate to the limiting plate, the driver can be turned on to drive the limiting plate away from the lifting plate, speed up the distance from the lifting plate to the limiting plate, and facilitate the operation of the lifting plate.

[0013] Furthermore, a slide rail is slidably connected to the bottom of the second conveyor belt, the sliding direction of the slide rail is consistent with the conveying direction, and the second conveyor belt is fixedly connected to a driver for driving the second conveyor belt to translate. When the sheet metal part is too large, after the limit plate moves to the side away from the lifting plate, the distance between the second conveyor belt and the pushing mechanism can be moved according to the actual situation of the sheet metal part to avoid the second conveyor belt from affecting the descending sheet metal part.

[0014] Furthermore, the pushing mechanism includes a placement plate and a plurality of pushing components, both sides of the placement plate are fixedly connected with connecting rods, the connecting rods are fixedly connected to the bottom of the first conveyor belt, and the plurality of pushing components are fixedly connected to the surface of the pushing plate, and the telescopic ends of the pushing components point to the second conveyor belt, and the surface of the placement plate is flush with the surface of the second conveyor belt. When the lifting plate descends until the surface is flush with the surface of the second conveyor belt, the plurality of pushing components are activated to push the sheet metal parts on the surface onto the second conveyor belt, and then the second conveyor belt conveys them to the pallet or shelf at the rear for storage.

[0015] Furthermore, the pushing assembly includes a push rod and a rubber pad, the telescopic end of the push rod points to the second conveyor belt, the rubber pad is fixedly connected to the telescopic end of the push rod, and the bottom of the rubber pad is flush with the surface of the second conveyor belt. The rubber pad can push the sheet metal part toward the surface of the second conveyor belt without damaging the side wall of the sheet metal part. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic structural diagram of an automatic unloading device for sheet metal cutting according to the present invention;

[0017] Figure 2 for Figure 1 The main view;

[0018] Figure 3 for Figure 2 Top view of the . DETAILED DESCRIPTION

[0019] The following is further described in detail through specific implementation methods:

[0020] The figure marks in the drawings of the specification include: second supporting leg 1, slide rail 2, second conveyor belt 3, limiting mechanism 4, extension plate 41, extension slide rail 42, limiting plate 43, frame 5, shearing knife 6, first conveyor belt 7, first supporting leg 8, lifting mechanism 9, lifting plate 91, lifting rail 92, rail 93, positioning slider 94, pushing mechanism 10, connecting rod 101, placement plate 102, push rod 103.

[0021] The embodiment is basically as shown in the attached Figure 1 to Figure 3 As shown: an automatic unloading device for sheet metal cutting, comprising a first conveyor belt 7 and a second conveyor belt 3, the conveying directions of the first conveyor belt 7 and the second conveyor belt 3 are the same, four first supporting legs 8 are fixedly connected to the bottom of the first conveyor belt 7, two slide rails 2 are slidably connected to the bottom of the second conveyor belt 3, the second conveyor belt 3 is fixedly connected to a linear motor, the bottoms of the two slide rails 2 are fixedly connected to two second supporting legs 1, the second conveyor belt 3 is shorter than the first conveyor belt 7, the surface of the first conveyor belt 7 is fixedly connected to a frame 5, the frame 5 is an inverted "concave" shape, a shearing knife 6 is slidably connected to one side of the first conveyor belt 7, the shearing knife 6 is fixedly connected to the linear motor, a lifting mechanism 9 and a limiting mechanism 4 are provided on the side of the first conveyor belt 7 close to the second conveyor belt, a pushing mechanism 10 is provided on the bottom of the first conveyor belt 7, an infrared sensor is provided on the side of the first conveyor belt 7 close to the lifting mechanism 9, and the infrared sensor is connected to an external controller (such as a PLC controller) through an electrical signal;

[0022] The lifting mechanism 9 includes a lifting plate 91 and four lifting rails 92. The four lifting rails 92 are arranged in pairs and are fixedly connected to the two sides of the first conveyor belt 7. Both sides of the lifting plate 91 are slidably connected to the lifting rails 92 on both sides, and the lifting plate 91 is fixedly connected to the linear motor. One side of the lifting plate 91 is close to the first conveyor belt 7. When the lifting plate 91 is at the top, the surface is flush with the surface of the first conveyor belt 7. When it is at the bottom, the surface is flush with the surface of the second conveyor belt 3. A track 93 is provided on the surface of the lifting mechanism 9. The track 93 is perpendicular to the conveying direction, and the track 93 extends from one end of the lifting plate 91 to the other end. Two positioning sliders 94 are slidably connected to the inner side of the track 93. The two positioning sliders 94 are symmetrical to each other, and the two positioning sliders 94 are fixedly connected to the linear motor.

[0023] The limiting mechanism 4 is located at a side of the lifting mechanism 9 away from the first conveyor belt 7. The limiting mechanism 4 includes a limiting plate 43 and two extension plates 41. The two extension plates 41 are fixedly connected to the two sides of the first conveyor belt 7. The inner sides of the two extension plates 41 are fixedly connected with extension rails 42. The extension direction of the extension rails 42 is consistent with the conveying direction. The two ends of the limiting plate 43 are respectively slidably connected to the two extension rails 42, and the limiting plate 43 is fixedly connected with a linear motor.

[0024] The pushing mechanism 10 includes a placing plate 102 and three pushing components. The placing plate 102 is located below the first conveyor belt 7, and the surface of the placing plate 102 is flush with the surface of the second conveyor belt 3. The left and right sides of the placing plate 102 are fixedly connected with connecting rods 101. The connecting rods 101 are vertically upward and fixedly connected to the bottom of the first conveyor belt 7. The three pushing components are fixedly connected to the surface of the placing plate 102. The pushing components include a push rod 103 and a rubber pad. The telescopic end of the push rod 103 points to the second conveyor belt 3. The rubber pad is fixedly connected to the telescopic end of the push rod 103, and the bottom of the rubber pad is flush with the surface of the second conveyor belt 3.

[0025] The specific implementation process is as follows: when in use, place the sheet metal on the surface of the first conveyor belt 7, align it and send it under the shearing knife 6. After using the shearing knife 6 to cut the sheet metal into a regular shape, it is sent to the top of the lifting plate 91. When the infrared sensor senses that the height of the lifting plate 91 is not flush with the surface of the first conveyor belt 7, it can feed back the signal to the controller, and the controller controls the linear motor of the lifting plate 91 to drive the lifting plate 91 to descend until the sheet metal surface of the lifting plate 91 containing the sheet metal is flush with the surface of the first conveyor belt 7. When the sheet metal is on the surface of the lifting plate 91, the linear motor of the positioning slider 94 can also be started to drive the two positioning sliders 94 to slide toward the center of the lifting plate 91 to fix the sheet metal. The lifting plate 91 is fixed at the center position of the lifting plate 91. When the sheet metal parts on the lifting plate 91 are stacked enough, the stacked sheet metal parts can also be aligned. The limit plate 43 on one side of the lifting plate 91 also has the function of aligning the sheet metal parts and can prevent the sheet metal parts from sliding down. Because the sheet metal parts are thin, more sheets can be stacked and then uniformly operated. After a certain number of sheets are stacked, the lifting plate 91 can be started to descend until the surface of the lifting plate 91 is flush with the surface of the second conveyor belt 3. At this time, the push rod 103 can be started, and the push rod 103 drives the rubber pad to extend toward the second conveyor belt 3, pushing all the sheet metal parts on the lifting plate 91 to the surface of the second conveyor belt 3, and then the second conveyor belt 3 is used to convey them to the rear pallet or shelf for storage;

[0026] When the sheet metal is larger than the distance between the limit plate 43 and the lifting plate 91, the linear motor of the limit plate 43 can be started to drive the limit plate 43 to slide along the extension slide rail 42 until the distance between the limit plate 43 and the lifting plate 91 is increased to avoid obstruction of the sheet metal. When the limit plate 43 slides outward, the linear motor of the second conveyor belt 3 can also be turned on to drive the second conveyor belt 3 away from one side of the first conveyor belt 7 to increase the distance from the lifting plate 91 to avoid the surface of the second conveyor belt 3 affecting the descending sheet metal during operation.

[0027] The above is only an embodiment of the present invention, and the common knowledge such as the known specific structure and characteristics in the scheme is not described in detail here. It should be pointed out that for those skilled in the art, several deformations and improvements can be made without departing from the structure of the present invention, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. An automatic unloading device for sheet metal cutting, comprising a first conveyor belt and a second conveyor belt, wherein the first conveyor belt is higher than the second conveyor belt, and the conveying directions of the two conveyor belts are the same, the top of the first conveyor belt is fixedly connected to a frame, and the frame is slidably connected to a shearing knife on one side of the first conveyor belt, characterized in that: A lifting mechanism is provided at one end of the first conveyor belt close to the second conveyor belt, and the lifting mechanism includes a lifting plate and multiple lifting rails. The multiple lifting rails are divided into two groups, and the two groups of lifting rails are respectively located on both sides of the first conveyor belt. The lifting plate is slidably connected between the two groups of lifting rails, and the lifting plate is fixedly connected to a driver for driving it to rise and fall. When the lifting plate slides to the lowest position, the surface is flush with the surface of the second conveyor belt, and a pushing mechanism is provided at one end of the lifting plate away from the second conveyor belt.

2. The automatic sheet metal cutting device according to claim 1, characterized in that: A track is provided on the surface of the lifting plate, one end of which extends from one set of lifting tracks to another set of lifting tracks. Two positioning sliders are slidably connected in the track, and both positioning sliders are fixedly connected to a driver for driving them to translate, and the two positioning sliders are symmetrical to each other.

3. The automatic sheet metal cutting device according to claim 2, characterized in that: An infrared sensor is provided on one side of the first conveyor belt close to the lifting plate. The infrared sensor is connected to an external controller through an electrical signal. The sensing end of the infrared sensor is flush with the surface of the first conveyor belt.

4. The automatic sheet metal cutting device according to claim 3 is characterized in that: A limiting mechanism is provided at one end of the lifting plate close to the second conveyor belt, and the limiting mechanism is fixedly connected to the first conveyor belt. The limiting mechanism includes a limiting plate and two extension plates, and the two extension plates are respectively fixedly connected to both sides of the first conveyor belt. The two extension plates are both extended horizontally, and the side walls of the two extension plates are both fixedly connected with extension slide rails. The two ends of the limiting plate are respectively slidably connected to the two extension slide rails, and the limiting plate is fixedly connected with a driver for driving it to translate. The lifting mechanism is located between the limiting mechanism and the first conveyor belt, and the top end of the limiting plate is higher than the top end of the lifting plate.

5. The automatic sheet metal cutting device according to claim 4, characterized in that: The bottom of the second conveyor belt is slidably connected to a slide rail, the sliding direction of the slide rail is consistent with the conveying direction, and the second conveyor belt is fixedly connected to a driver for driving the second conveyor belt to translate.

6. The automatic sheet metal cutting device according to claim 5, characterized in that: The pushing mechanism includes a placement plate and multiple pushing components. Connecting rods are fixedly connected to both sides of the placement plate. The connecting rods are fixedly connected to the bottom of the first conveyor belt. Multiple pushing components are fixedly connected to the surface of the pushing plate, and the telescopic ends of the pushing components point to the second conveyor belt. The surface of the placement plate is flush with the surface of the second conveyor belt.

7. The automatic sheet metal cutting device according to claim 6, characterized in that: The pushing assembly comprises a push rod and a rubber pad, the telescopic end of the push rod points to the second conveyor belt, the rubber pad is fixedly connected to the telescopic end of the push rod, and the bottom of the rubber pad is flush with the surface of the second conveyor belt.

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