An automatic weighing and cutting device

Abstract

This utility model discloses an automatic weighing and cutting rubber device, relating to the field of rubber production equipment technology. It includes a first support frame, a second support frame, and a third support frame. Symmetrical guide rods are fixedly mounted on the upper lower surface of the first support frame, and a lifting plate slides along the guide rods. Symmetrically arranged first slide rails are fixedly mounted on both sides of the lower surface of the lifting plate, and first sliding plates slide along each of the symmetrical first slide rails. Symmetrical second slide rails are fixedly mounted at both ends of the lower surface of the lifting plate, and second sliding plates slide along each of the symmetrical second slide rails. This utility model micro-shapes a cuboid rubber block into a standard cuboid shape, then squeezes it to remove air bubbles, making the laser scanning detector more accurate in detecting the density of the rubber block. This improves the accuracy of weight measurement during the cutting process, achieving automatic weighing and cutting of rubber.

Description

Technical Field

[0001] This utility model relates to the technical field of rubber production equipment, specifically an automatic weighing and cutting rubber device. Background Technology

[0002] In the industrial production of rubber products and seals, automatic weighing and cutting of rubber blocks is a key step to ensure the accuracy of subsequent processing and product consistency. The existing silicone rubber extruders extrude and filter the input blocky silicone rubber, and output long strips with a fixed cross-section (usually rectangular) from the die head. The production mode that relies on manual shaping, cutting and weighing is no longer able to meet the needs of efficient mass production, and it is difficult to guarantee the shape and weight accuracy of the rubber blocks, which can easily lead to material waste and increased production costs.

[0003] Existing automatic weighing and cutting equipment for rubber blocks does not reshape the original blocks (often irregularly shaped, with protrusions or depressions) into standard cuboids when cutting them. As a result, when the rubber blocks enter the laser density detection stage, the uneven surface or uneven distribution of internal air bubbles leads to a deviation between the density model formed by the laser scan and the actual density. Ultimately, this results in a deviation in the weight of the cut rubber blocks, causing material waste and increased production costs.

[0004] Patent CN203381169U discloses an automatic cutting and weighing device for silicone rubber. The device uses a first cutter and a second cutter to cut silicone rubber on a conveyor belt into finished silicone rubber and sample silicone rubber. A third cylinder pushes the sample silicone rubber onto the automatic weighing device for weighing and automatically calculates the weight of the finished silicone rubber by using the length ratio of the sample silicone rubber to the finished silicone rubber.

[0005] However, the weighing device in this patent has the following drawbacks: before cutting the rubber block, the long strip of rubber block was not shaped and air bubbles were not removed, which caused the detector to have errors in detecting its density, and caused weight deviation during the cutting process. Utility Model Content

[0006] To address the technical problems in existing technologies, such as the inevitable collisions that occur during the conveying of adhesive blocks, leading to changes in the shape of the elongated adhesive blocks and an increase in air bubbles within the blocks, resulting in deviations in density and volume scanning before cutting and consequently, inaccuracies in the cut weight, this invention provides an automatic weighing and cutting adhesive device.

[0007] The objective of this utility model can be achieved through the following technical solutions:

[0008] An automatic weighing and cutting device includes a first support frame, a second support frame, and a third support frame. Symmetrical guide rods are fixedly mounted on the upper lower surface of the first support frame, and a lifting plate slides along the guide rods. Symmetrically arranged first slide rails are fixedly mounted on both sides of the lower surface of the lifting plate, and a first sliding plate slides along each of the first slide rails. Symmetrical second slide rails are fixedly mounted at both ends of the lower surface of the lifting plate, and a second sliding plate slides along each of the second slide rails. A second extrusion plate is fixedly connected to each of the first sliding plates, and a third extrusion plate is fixedly connected to each of the second sliding plates. A second rotating shaft is connected to both ends of the upper surface of the second extrusion plate, and a first rotating shaft is connected to both ends of the upper surface of the third extrusion plate. Connecting rods are rotatably connected to both the first and second rotating shafts.

[0009] Furthermore, the first sliding plate and the second sliding plate form a rectangular shape, the guide rod is located at the corner of the lifting plate, the other end of the guide rod is fixed to both sides of the conveying device, and the output end of the third cylinder is fixedly connected to the side of the first sliding plate away from the second sliding plate.

[0010] Furthermore, the lower part of the first support frame and the second support frame is provided with a conveying device; a connecting plate is fixedly provided on the upper surface of the lifting plate, and the upper surface of the connecting plate is fixedly connected to the output end of the first cylinder.

[0011] Furthermore, a second cylinder is fixedly provided on the upper lower surface of the connecting plate, and the output end of the second cylinder is connected to a first extrusion plate. The shape of the first extrusion plate matches the shape formed by the second extrusion plate and the third extrusion plate after they are closed.

[0012] Furthermore, a laser scanning detector is fixedly installed on the lower surface of the upper part of the second support frame, a fourth cylinder is fixedly installed on the lower surface of the upper part of the third support frame, a cutter is installed at the output end of the fourth cylinder, and a cutting plate is installed at the lower part of the third support frame.

[0013] Furthermore, by pulling the third extrusion plate, the second and third extrusion plates are moved away from or closer to each other under the action of the connecting rod, thus changing the area enclosed by the second and third extrusion plates.

[0014] The beneficial effects of this utility model are:

[0015] This invention utilizes a first cylinder to lower a connecting plate, which in turn lowers a lifting plate. Then, a third cylinder is activated, pulling a first sliding plate along a first sliding rail. This movement of the first sliding plate moves a second extrusion plate, which, under the action of a connecting rod, moves a third extrusion plate. The third extrusion plate then moves the second sliding plate along the second sliding rail, thus altering the area enclosed by the second and third extrusion plates. A rubber block is then placed between the second and third extrusion plates. The third cylinder is then activated again to move in the opposite direction, finely adjusting the perimeter of the rectangular rubber block to be cut, shaping it into a standard rectangular shape. Next, the second cylinder is activated, moving the first extrusion plate downwards to extrude air bubbles from the top of the rubber block. This fine-shaping and air-explosion process of the rectangular rubber block improves the accuracy of density detection by the laser scanning detector, enhancing weight precision during cutting and enabling automatic weighing and cutting. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the lifting plate of this utility model;

[0018] Figure 3 This utility model Figure 2 A frontal view diagram;

[0019] Figure 4 This is a schematic diagram of the structure of the bottom of the lifting plate of this utility model;

[0020] Figure 5 This is an exploded view showing the positions of the second extrusion plate and the first sliding plate of this utility model.

[0021] The attached diagram lists the components represented by each number as follows:

[0022] 1. First support frame; 2. Second support frame; 3. Third support frame; 4. Conveying device; 5. Cutting plate; 6. First cylinder; 7. Connecting plate; 8. Second cylinder; 9. First extrusion plate; 10. Lifting plate; 11. Guide rod; 12. Third cylinder; 13. First sliding plate; 14. First slide rail; 15. Second sliding plate; 16. Second slide rail; 17. Second extrusion plate; 18. Third extrusion plate; 19. Connecting rod; 1901. First rotating shaft; 1902. Second rotating shaft; 20. Laser scanning detector; 21. Fourth cylinder; 22. Cutter. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1 and Figure 2 As shown, an automatic weighing and cutting device for rubber includes a first support frame 1, a second support frame 2 and a third support frame 3; a conveying device 4 is provided at the lower part of the first support frame 1 and the second support frame 2, and the conveying device 4 conveys the rubber block to be cut.

[0025] Two symmetrical guide rods 11 are fixedly provided on the upper lower surface of the first support frame 1, and the other end of the guide rod 11 is fixed on both sides of the conveying device 4; a lifting plate 10 is slidably provided on the guide rod 11, and the guide rod 11 is located at the corner of the lifting plate 10.

[0026] Please see Figure 4 and Figure 5 As shown, two symmetrically arranged first slide rails 14 are fixed on both sides of the lower surface of the lifting plate 10. A first sliding plate 13 is slidably arranged on each of the two symmetrically arranged first slide rails 14. There are two sets of first sliding plates 13, and the two sets of first sliding plates 13 are symmetrically arranged.

[0027] The lower surface of the lifting plate 10 is fixed with two symmetrically arranged second slide rails 16 at both ends. Two sliding plates 15 are slidably arranged on each of the two symmetrically arranged second slide rails 16. There are two sets of second sliding plates 15, and the two sets of second sliding plates 15 are symmetrically arranged.

[0028] Two sets of first sliding plates 13 and two sets of second sliding plates 15 form a rectangular shape; each of the symmetrically arranged first sliding plates 13 is fixedly connected to a second extrusion plate 17, and each of the symmetrically arranged second sliding plates 15 is fixedly connected to a third extrusion plate 18.

[0029] The upper surface of the second extrusion plate 17 is connected to the second rotating shaft 1902 at both ends, and the upper surface of the third extrusion plate 18 is connected to the first rotating shaft 1901 at both ends. The first rotating shaft 1901 and the second rotating shaft 1902 are rotatably connected to the connecting rod 19; that is, the corners of the second extrusion plate 17 and the third extrusion plate 18 are connected by the connecting rod 19.

[0030] When the second extrusion plate 17 and the third extrusion plate 18 are closed, the angle between the connecting rod 19 and the third extrusion plate 18 is 45 degrees; when the second extrusion plate 17 and the third extrusion plate 18 are open, the angle between the connecting rod 19 and the third extrusion plate 18 is 90 degrees; when closed, the 45-degree connecting rod is under stable pressure, and when open, the 90-degree connecting rod avoids dead points, thus shaping it into a standard cuboid shape.

[0031] When the second extrusion plate 17 is stretched away from the third extrusion plate 18, the third extrusion plate 18 is moved away from the second extrusion plate 17 by the action of the connecting rod 19, so that the symmetrical second extrusion plate 17 and the symmetrical third extrusion plate 18 move away from each other, and the enclosed area of ​​the second extrusion plate 17 and the third extrusion plate 18 increases.

[0032] The output end of the third cylinder 12 is fixedly connected to the side of the first sliding plate 13 away from the second sliding plate 15. The third cylinder 12 is fixed to the lower surface of the lifting plate 10.

[0033] The first sliding plate 13 is moved along the first sliding rail by the third cylinder 12. The movement of the first sliding plate 13 drives the second extrusion plate 17 to move. The second extrusion plate 17 drives the third extrusion plate 18 to move under the action of the connecting rod 19. The third extrusion plate 18 drives the second sliding plate 15 to move along the second sliding rail, thereby changing the area enclosed by the second extrusion plate 17 and the third extrusion plate 18; thus, the rubber block to be cut is slightly adjusted so that its shape becomes a cuboid.

[0034] Please see Figure 3 As shown, a connecting plate 7 is fixedly provided on the upper surface of the lifting plate 10. The connecting plate 7 is U-shaped and the opening faces downward. The upper surface of the connecting plate 7 is fixedly connected to the output end of the first cylinder 6. The first cylinder 6 provides driving force to the connecting plate 7, causing the connecting plate 7 to move up and down. The up and down movement of the connecting plate 7 drives the lifting plate 10 to move up and down.

[0035] A second cylinder 8 is fixedly installed on the upper lower surface of the connecting plate 7. The output end of the second cylinder 8 is connected to a first extrusion plate 9. The shape of the first extrusion plate 9 matches the shape formed by the second extrusion plate 17 and the third extrusion plate 18 after they are closed. The second cylinder 8 drives the first extrusion plate 9 to move downward and extrude the top of the glue block to remove air bubbles in the glue block, so that the density of the glue block can be detected more accurately by the subsequent laser scanning detector 20.

[0036] Please refer to it again. Figure 1 As shown, a laser scanning detector 20 is fixedly installed on the lower surface of the upper part of the second support frame 2. The laser scanning detector 20 performs volume scanning, and the system inputs the density of the rubber to automatically calculate the volume of the rubber block to be cut for different weights. Finally, the measured rubber block is transported to the cutting plate 5 for cutting, thus achieving the effect of automatic weighing.

[0037] A fourth cylinder 21 is fixedly installed on the upper lower surface of the third support frame 3. A cutter 22 is installed at the output end of the fourth cylinder 21. A cutting plate 5 is installed at the lower part of the third support frame 3. When the adhesive is conveyed to the cutting plate 5 and the controller confirms that the weight of the current adhesive reaches the cutting standard, a cutting command is triggered to control the fourth cylinder 21 to drive the cutter 22, thereby cutting the adhesive block to be cut.

[0038] Working principle:

[0039] First, the rubber block to be cut is transferred to the conveying device 4. The conveying device 4 transports the rubber block to below the first support frame 1. Then, by activating the first cylinder 6, the first cylinder 6 drives the connecting plate 7 to descend. The descent of the connecting plate 7 drives the lifting plate 10 to descend. Then, by activating the third cylinder 12, the third cylinder 12 pulls the first sliding plate 13 to move on the first sliding rail. The movement of the first sliding plate 13 drives the second extrusion plate 17 to move. Under the action of the connecting rod 19, the second extrusion plate 17 drives the third extrusion plate 18 to move. The third extrusion plate 18 drives the second sliding plate 15 to move on the second sliding rail, thereby changing the area enclosed by the second extrusion plate 17 and the third extrusion plate 18. Then, the rubber block is placed between the second extrusion plate 17 and the third extrusion plate 18. Then, the third cylinder 12 is activated to move in the opposite direction, thereby making a slight adjustment to the perimeter of the rubber block to be cut, so that its shape becomes a cuboid.

[0040] Then, by activating the second cylinder 8, the first extrusion plate 9 moves downward to extrude the top of the rubber block, eliminating air bubbles inside the block so that the subsequent laser scanning detector 20 can more accurately detect the density of the rubber block.

[0041] The micro-shaped rubber block is then conveyed to the bottom of the second support frame 2 via the conveying device 4. The volume is scanned by the laser scanning detector 20, the density of the rubber is input, and the volume of the rubber block to be cut for different weights is automatically calculated. Finally, the measured rubber block is conveyed to the cutting plate 5 for cutting, thus achieving the purpose of automatic weighing.

[0042] It should be noted that, in this document, terms such as “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0043] Although 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 alterations can be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. An automatic weighing and cutting device, comprising a first support frame (1), a second support frame (2), and a third support frame (3); characterized in that, The upper lower surface of the first support frame (1) is fixedly provided with symmetrical guide rods (11), and a lifting plate (10) is slidably provided on the guide rods (11); the lower surface of the lifting plate (10) is fixedly provided with symmetrical first slide rails (14) on both sides, and a first sliding plate (13) is slidably provided on each of the first slide rails (14); the lower surface of the lifting plate (10) is fixedly provided with symmetrical second slide rails (16) at both ends, and a second sliding plate (15) is slidably provided on each of the second slide rails (16). The first sliding plate (13) is fixedly connected to the second extrusion plate (17), and the second sliding plate (15) is fixedly connected to the third extrusion plate (18); the upper surfaces of the second extrusion plate (17) are connected to the second rotating shaft (1902) at both ends, and the upper surfaces of the third extrusion plate (18) are connected to the first rotating shaft (1901) at both ends. The first rotating shaft (1901) and the second rotating shaft (1902) are rotatably connected to the connecting rod (19).

2. The automatic weighing and cutting device according to claim 1, characterized in that, The first sliding plate (13) and the second sliding plate (15) form a rectangular shape. The guide rod (11) is located at the corner of the lifting plate (10). The other end of the guide rod (11) is fixed on both sides of the conveying device (4). The output end of the third cylinder (12) is fixedly connected to the side of the first sliding plate (13) away from the second sliding plate (15).

3. The automatic weighing and cutting device according to claim 2, characterized in that, The lower part of the first support frame (1) and the second support frame (2) is provided with a conveying device (4); the upper surface of the lifting plate (10) is fixedly provided with a connecting plate (7), and the upper surface of the connecting plate (7) is fixedly connected to the output end of the first cylinder (6).

4. An automatic weighing and cutting device for rubber according to claim 3, characterized in that, The upper lower surface of the connecting plate (7) is fixedly provided with a second cylinder (8), and the output end of the second cylinder (8) is connected to a first extrusion plate (9). The shape of the first extrusion plate (9) matches the shape formed by the second extrusion plate (17) and the third extrusion plate (18) after they are closed.

5. An automatic weighing and cutting device according to claim 4, characterized in that, The upper lower surface of the second support frame (2) is fixedly provided with a laser scanning detector (20), the upper lower surface of the third support frame (3) is fixedly provided with a fourth cylinder (21), the output end of the fourth cylinder (21) is provided with a cutter (22), and the lower part of the third support frame (3) is provided with a cutting plate (5).

6. An automatic weighing and cutting device according to claim 5, characterized in that, Pulling the third extrusion plate (18) causes the second extrusion plate (17) and the third extrusion plate (18) to move away from or closer to each other under the action of the connecting rod (19), thus changing the area enclosed by the second extrusion plate (17) and the third extrusion plate (18).

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