A die cutting machine capable of automatically sucking waste and detecting leakage

Abstract

The present application relates to the technical field of die cutting machine, disclose a kind of die cutting machine of automatic waste suction and leak detection of multiple hole positions, the setting of buffer rod makes when lifting platform die cutting is completed to rise, buffer rod and the fluid flow in lifting piston tube are driven, in turn, driven roller is rotated by fluid driver, die cutting completed workpiece can be transported to next station to carry out next die cutting, while weight detection mechanism makes workpiece only weight meets standard to be able to normally transport to next station, once leak occurs, the weight of workpiece will be overproof, so that normal transport cannot be carried out, this completes leak detection.

Description

Technical Field

[0001] This invention relates to the field of die-cutting machine technology, specifically to a die-cutting machine with automatic waste suction and leak detection at multiple holes. Background Technology

[0002] A die-cutting machine is a machine used to cut materials into specific shapes. The working principle of a die-cutting machine is usually to apply pressure to press the mold and the material together, thereby achieving precise cutting. It can cut according to pre-designed molds, which can be customized into various shapes and sizes to meet the needs of different products.

[0003] When die-cutting machines are cutting, there may be parts that are not completely cut off, or the waste material cut off may still stick to the product, resulting in product defects. Traditional die-cutting machines, such as the one with publication number CN108996296B, have difficulty in effectively detecting product defects and removing waste material, resulting in a high scrap rate during production. Summary of the Invention

[0004] The purpose of this invention is to provide a die-cutting machine with automatic waste suction and hole detection at multiple holes, in order to solve the problem mentioned in the background that traditional die-cutting machines are difficult to effectively detect holes in products and remove waste materials, resulting in a high scrap rate during production.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a multi-hole die-cutting machine with automatic waste suction and leakage detection, comprising a multi-hole die-cutting machine, wherein the multi-hole die-cutting machine consists of two or more sets of die-cutting tables, a fixed platform is fixedly connected to the die-cutting table by a support rod, a hydraulic cylinder is fixedly installed on the fixed platform, a lifting platform is fixedly connected to the output end of the hydraulic cylinder, the lifting platform is used to install the die, a material discharge port is provided below the lifting platform, a lower template is provided above the material discharge port, and a waste storage bin is provided below the material discharge port;

[0006] A buffer rod is installed below the lifting platform. The lower end of the buffer rod is connected to a fluid actuator through a pipe. One end of the fluid actuator is connected to a weight detection mechanism through a pipe.

[0007] The weight detection mechanism includes a fixed sleeve, which is fixedly installed on both sides of the die-cutting table. A lifting column is inserted into the fixed sleeve. A flow port is opened on the fixed sleeve. A flow groove is opened on the lifting column. A drive roller is movably connected to the upper end of the lifting column. A pressure spring is provided at the lower end of the lifting column.

[0008] The fluid actuator is connected to a first pulley via a ratchet mechanism. The first pulley is connected to a second pulley via a synchronous belt. The second pulley is movably mounted on the die-cutting table. A third pulley is fixedly connected to one side of the second pulley. A fourth pulley is fixedly connected to one side of the drive roller. The third pulley and the fourth pulley are connected by an elastic belt.

[0009] The waste storage bin is equipped with a lifting piston tube, and the weight detection mechanism is connected to the lifting piston tube through a pipe. The lifting piston tube is equipped with a lifting piston rod, and a sealing waste suction plate is fixedly connected to the lower end of the lifting piston rod.

[0010] Furthermore, a material discharge groove is machined on the lower template, and the shape, size and position of the material discharge groove correspond to the die fixedly installed below the lifting platform. A negative pressure sealing ring is provided around the lower template.

[0011] Furthermore, there are four sets of buffer rods, which are located at the four corners of the lifting platform.

[0012] Furthermore, the buffer rod includes a sealing sleeve and a buffer piston rod. The sealing sleeve is fixedly installed on the die-cutting table, and the buffer piston rod is fixedly connected to the lifting table. The buffer piston rod is inserted into the sealing sleeve.

[0013] Furthermore, a cleaning chamber door is provided in front of the waste storage chamber, and a sealing ring is provided around the cleaning chamber door. The sealing waste suction plate is in sealed contact with the inner wall of the waste storage chamber through the sealing ring.

[0014] Furthermore, a drive impeller is rotatably connected inside the fluid actuator, and the inlet and outlet of the fluid actuator are arranged opposite to each other and are both located on the same side of the drive impeller.

[0015] Furthermore, the ratchet mechanism includes a ratchet gear, which is fixedly connected to the drive impeller via a transmission rod. A ratchet sleeve is fixedly connected to one side of the first pulley. A movable tooth is rotatably connected to the inner side of the ratchet sleeve via a rotating shaft. A return spring is provided between the movable tooth and the inner wall of the ratchet sleeve.

[0016] Furthermore, the elastic belt is made of elastic rubber, and the elastic deformation length of the elastic belt is greater than the change in distance between the fourth pulley and the third pulley when the fourth pulley moves up and down.

[0017] Furthermore, a pressure adjusting plate is provided below the pressure spring, and the pressure adjusting plate is connected to a lifting screw via a screw nut. The lower end of the lifting screw is fixedly connected to a servo motor via a coupling.

[0018] Furthermore, the lower end of the buffer rod is connected to the lifting piston tube via a pressure relief pipe that bypasses the weight detection mechanism, and a two-way pressure relief valve is provided on the pressure relief pipe.

[0019] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0020] This invention proposes a multi-position automatic waste suction and leak detection die-cutting machine. Through the installation of a buffer rod, when the lifting platform rises after die-cutting, it drives fluid flow within the buffer rod and lifting piston tube. This fluid actuator then drives the drive rollers to rotate, transporting the die-cut workpiece to the next station for further die-cutting. Simultaneously, a weight detection mechanism ensures that only workpieces meeting weight standards are transported to the next station. If a leak is detected, the workpiece's weight will exceed the standard, preventing normal transport and thus completing the leak detection. Furthermore, when the lifting platform descends for die-cutting, the sealed waste suction plate in the waste storage bin also descends, reducing the pressure in the space above the sealed waste suction plate and thus adsorbing and fixing the workpiece. Upon completion of die-cutting, the negative pressure also sucks the cut waste into the waste storage bin, preventing waste residue from affecting subsequent die-cutting steps. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the die-cutting machine of the present invention;

[0022] Figure 2 This is a schematic diagram of a single die-cutting table structure according to the present invention;

[0023] Figure 3 This is a schematic diagram of the template structure of the present invention;

[0024] Figure 4 This is a schematic cross-sectional view of the die-cutting table of the present invention;

[0025] Figure 5 This is a schematic diagram of the buffer rod, fluid actuator, and lifting piston tube structure of the present invention;

[0026] Figure 6 This is a schematic diagram of the drive roller transmission structure of the present invention;

[0027] Figure 7 This is a schematic diagram of the weight detection mechanism of the present invention;

[0028] Figure 8 This is a schematic diagram of the ratchet mechanism of the present invention.

[0029] The diagram shows the following components: 1. Multi-hole die-cutting machine; 2. Die-cutting table; 3. Support rod; 4. Fixed platform; 5. Hydraulic cylinder; 6. Lifting platform; 7. Material discharge port; 8. Lower template; 801. Negative pressure sealing ring; 9. Waste storage bin; 10. Cleaning bin door; 11. Buffer rod; 1101. Sealing sleeve; 1102. Buffer piston rod; 12. Fluid actuator; 1201. Drive impeller; 13. Weight detection mechanism; 1301. Fixed sleeve; 1302. Lifting column; 1303. Flow port; 1304. Flow channel; 1305. 1306. Drive roller; 1307. Pressure spring; 1308. Pressure adjusting plate; 1309. Lifting screw; 14. Servo motor; 15. Ratchet mechanism; 16. Ratchet gear; 17. Ratchet sleeve; 18. Movable tooth; 19. Return spring; 20. First pulley; 21. Synchronous belt; 22. Second pulley; 23. Third pulley; 24. Fourth pulley; 25. Elastic belt; 26. Lifting piston tube; 27. Lifting piston rod; 28. Sealing waste suction plate; 29. ​​Pressure relief pipe; 20. Two-way pressure relief valve. Detailed Implementation

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0031] Please see Figure 1 - Figure 8 A multi-position automatic waste removal and leakage detection die-cutting machine includes a multi-position die-cutting machine 1, which consists of two or more sets of die-cutting tables 2. A fixed platform 4 is fixedly connected to each die-cutting table 2 via a support rod 3. A hydraulic cylinder 5 is fixedly installed on the fixed platform 4. A lifting platform 6 is fixedly connected to the output end of the hydraulic cylinder 5. The lifting platform 6 is used to install the die-cutting mold. A material discharge port 7 is provided below the lifting platform 6, and a lower template 8 is provided above the material discharge port 7. A material discharge groove is machined on the lower template 8, and the shape, size, and position of the material discharge groove correspond to the die-cutting mold fixedly installed below the lifting platform 6. When the die-cutting mold cuts the material, the waste material will... As the material falls from the chute, the lower template 8 is equipped with negative pressure sealing rings 801 around its perimeter, which can form a buffer and seal between the material and the product. Below the material discharge port 7, there is a waste storage bin 9 for storing waste materials. In front of the waste storage bin 9, there is a cleaning bin door 10. The cleaning bin door 10 is equipped with sealing rings around its perimeter. The sealing waste suction plate 23 is in sealed contact with the inner wall of the waste storage bin 9 through the sealing rings. In this way, when the sealing waste suction plate 23 descends, a negative pressure can be formed in the space above the sealing waste suction plate 23, which sucks the waste material into the waste storage bin 9. The waste material in the waste storage bin 9 can also be centrally cleaned through the cleaning bin door 10.

[0032] like Figure 5 As shown, a buffer rod 11 is provided below the lifting platform 6. There are four sets of buffer rods 11, which are located at the four corners of the lifting platform 6. They can support and buffer the lifting platform 6 from the four corners. The buffer rod 11 includes a sealing sleeve 1101 and a buffer piston rod 1102. The sealing sleeve 1101 is fixedly installed on the die-cutting table 2. The buffer piston rod 1102 is fixedly connected to the lifting platform 6. The buffer piston rod 1102 is inserted into the sealing sleeve 1101. The buffer piston rod 1102 contains fluids such as gas or liquid. When the lifting platform 6 is pressed down, it can drive the buffer piston rod 1102 to press down, forcing out the fluid in the sealing sleeve 1101, thus forming a buffering effect.

[0033] like Figure 7 As shown, the lower end of the buffer rod 11 is connected to a fluid actuator 12 via a pipe. A drive impeller 1201 is rotatably connected inside the fluid actuator 12. The inlet and outlet of the fluid actuator 12 are arranged opposite to each other and are both located on the same side of the drive impeller 1201. In this way, the fluid flowing through the fluid actuator 12 will drive the drive impeller 1201 to rotate.

[0034] like Figure 7 As shown, one end of the fluid actuator 12 is connected to a weight detection mechanism 13 via a pipe. The weight detection mechanism 13 includes a fixed sleeve 1301, which is fixedly installed on both sides of the die-cutting table 2. A lifting column 1302 is inserted into the fixed sleeve 1301. A flow port 1303 is provided on the fixed sleeve 1301, and a flow groove 1304 is provided on the lifting column 1302. A drive roller 1305 is movably connected to the upper end of the lifting column 1302, and a pressure spring 1306 is provided at the lower end of the lifting column 1302. When the workpiece is die-cut on the die-cutting table 2, the workpiece will press the lifting column 1302 downward. If the weight of the workpiece is qualified, the flow port 1303 will correspond to the flow groove 1304, so that the fluid can flow through the fluid actuator 12, thereby driving the drive roller 1305 to rotate and transport the workpiece.

[0035] like Figure 6 and Figure 7As shown, a first pulley 15 is connected to one side of the fluid actuator 12 via a ratchet mechanism 14. The first pulley 15 is connected to a second pulley 17 via a synchronous belt 16. The second pulley 17 is movably mounted on the die-cutting table 2. A third pulley 18 is fixedly connected to one side of the second pulley 17. A fourth pulley 19 is fixedly connected to one side of the drive roller 1305. The third pulley 18 and the fourth pulley 19 are connected by an elastic belt 20. When the drive impeller 1201 rotates, it drives the first pulley 15 to rotate. When the first pulley 15 rotates, it drives the second pulley 17 to rotate via the synchronous belt 16. When the second pulley 17 rotates, it drives the third pulley 18 to rotate. When the third pulley 18 rotates, it drives the fourth pulley 19 via the elastic belt 20. In this way, the fourth pulley 19 drives the drive roller 1305 to rotate, thereby driving the product to move to the next workstation.

[0036] like Figure 8 As shown, the ratchet mechanism 14 includes a ratchet gear 1401, which is fixedly connected to the drive impeller 1201 via a transmission rod. A ratchet sleeve 1402 is fixedly connected to one side of the first pulley 15. A movable tooth 1403 is rotatably connected to the inner side of the ratchet sleeve 1402 via a rotating shaft. A return spring 1404 is provided between the movable tooth 1403 and the inner wall of the ratchet sleeve 1402. In this way, the fluid actuator 12 can only drive the drive roller 1305 to rotate in one direction.

[0037] like Figure 4 As shown, a lifting piston tube 21 is installed inside the waste storage bin 9. The weight detection mechanism 13 is connected to the lifting piston tube 21 through a pipe. A lifting piston rod 22 is installed inside the lifting piston tube 21. A sealing waste suction plate 23 is fixedly connected to the lower end of the lifting piston rod 22.

[0038] Specifically, the elastic belt 20 is made of elastic rubber, and the elastic deformation length of the elastic belt 20 is greater than the distance change length between the fourth pulley 19 and the third pulley 18 when the fourth pulley 19 moves up and down. In this way, when the drive roller 1305 drives the fourth pulley 19 to rise and fall, the elastic belt 20 can always maintain its transmission performance.

[0039] Specifically, a pressure adjusting plate 1307 is provided below the pressure spring 1306. The pressure adjusting plate 1307 is connected to a lifting screw 1308 via a screw nut. The lower end of the lifting screw 1308 is fixedly connected to a servo motor 1309 via a coupling. Thus, the servo motor 1309 can drive the pressure adjusting plate 1307 to move up and down via the lifting screw 1308, thereby adjusting the compression force of the pressure spring 1306. This allows adjustment of the workpiece weight required to connect the flow port 1303 and the flow groove 1304. In other words, the weight of the standard workpiece that can be transported to the next station can be adjusted in this way.

[0040] Specifically, the lower end of the buffer rod 11 is also connected to the lifting piston tube 21 via the pressure relief pipe 24, bypassing the weight detection mechanism 13. The pressure relief pipe 24 is equipped with a two-way pressure relief valve 25. In this way, when the flow port 1303 and the flow groove 1304 are not connected, if the pressure in the buffer rod 11 or the lifting piston tube 21 is too high, the lifting piston tube 21 can open to relieve pressure, preventing damage to the buffer rod 11 and the lifting piston tube 21.

[0041] Working principle: When die-cutting is performed, the product is placed on four drive rollers 1305. When the hydraulic cylinder 5 drives the lifting platform 6 to descend, the lifting platform 6 compresses the buffer rod 11, and the fluid in the sealing sleeve 1101 is forced into the lifting piston tube 21 through the pressure relief pipe 24. As a result, the lifting piston rod 22 moves downward and pushes the sealing waste suction plate 23 downward. The lower template 8 forms a seal with the workpiece through the negative pressure sealing ring 801, so the pressure in the space above the sealing waste suction plate 23 will decrease and form a negative pressure. When the die cuts out a hole, the negative pressure will suck the waste into the waste storage bin 9.

[0042] When die-cutting is complete, hydraulic cylinder 5 drives lifting platform 6 to rise, so that the fluid in lifting piston tube 21 flows back into sealing sleeve 1101. At this time, the product is die-cut. If no leakage occurs, the weight of the product will be within the qualified range. At this time, the product presses down lifting column 1302, compressing pressure spring 1306, so that the flow groove 1304 on lifting column 1302 is connected to the flow port 1303 on fixed sleeve 1301. At this time, the fluid pressure is not enough to open the two-way pressure relief valve 25, so the pressure relief pipe 24 will be closed. In this way, the fluid can only flow through weight detection mechanism 13 and fluid driver 12 and then return to buffer rod 11. When fluid passes through the fluid actuator 12, it drives the drive impeller 1201 to rotate, which in turn drives the drive roller 1305 to rotate through a series of pulleys, thus conveying the workpiece to the next station. Since the flow channel 1304 and the flow port 1303 have a certain width, the workpiece can be conveyed even when it has a certain weight error, as long as it does not exceed the tolerance range. At the same time, when half of the workpiece is on the next die-cutting table 2, only half of the die-cutting table 2 is under force, and it can also be conveyed. Once a leak occurs or overcutting occurs, the weight of the workpiece will fluctuate greatly. At this time, the flow channel 1304 and the flow port 1303 will not be aligned and connected, so there is no fluid flow in the fluid actuator 12, and the workpiece cannot be conveyed. This allows for the detection of leaks.

[0043] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "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.

[0044] Although embodiments of the 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 invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A die-cutting machine with automatic waste suction and leakage detection at multiple holes, comprising a multi-hole die-cutting machine (1), characterized in that: The multi-hole die-cutting machine (1) includes two or more sets of die-cutting tables (2). The die-cutting table (2) is provided with a support rod (3). The upper end of the support rod (3) is fixedly connected to a fixed platform (4). A hydraulic cylinder (5) is fixedly installed on the fixed platform (4). The output end of the hydraulic cylinder (5) passes through the fixed platform (4) and is fixedly connected to a lifting platform (6). The lifting platform (6) is used to install the die-cutting mold. A material drop port (7) is provided below the lifting platform (6). A lower template (8) is provided above the material drop port (7). A negative pressure sealing ring (801) is provided around the lower template (8). A waste storage bin (9) is provided below the material drop port (7). A buffer rod (11) is provided below the lifting platform (6). The lower end of the buffer rod (11) is connected to a fluid actuator (12) through a pipe. One end of the fluid actuator (12) is connected to a weight detection mechanism (13) through a pipe. The weight detection mechanism (13) includes a fixed sleeve (1301), which is fixedly installed on both sides of the die-cutting table (2). A lifting column (1302) is inserted into the fixed sleeve (1301). A flow port (1303) is opened on the fixed sleeve (1301). A flow groove (1304) is opened on the lifting column (1302). A drive roller (1305) is movably connected to the upper end of the lifting column (1302). A pressure spring (1306) is provided at the lower end of the lifting column (1302). The fluid actuator (12) is connected to a first pulley (15) via a ratchet mechanism (14) on one side. The first pulley (15) is connected to a second pulley (17) via a synchronous belt (16). The second pulley (17) is movably mounted on the die-cutting table (2). A third pulley (18) is fixedly connected to one side of the second pulley (17). A fourth pulley (19) is fixedly connected to one side of the drive roller (1305). The third pulley (18) and the fourth pulley (19) are connected by an elastic belt (20). The waste storage bin (9) is equipped with a lifting piston tube (21), and the weight detection mechanism (13) is connected to the lifting piston tube (21) through a pipe. The lifting piston tube (21) is equipped with a lifting piston rod (22), and the lower end of the lifting piston rod (22) is fixedly connected to a sealing waste suction plate (23).

2. The die-cutting machine with automatic waste suction and leakage detection at multiple holes as described in claim 1, characterized in that: The lower template (8) is machined with a material dropping groove, and the shape, size and position of the material dropping groove correspond to the die fixedly installed below the lifting platform (6).

3. The die-cutting machine with automatic waste suction and leakage detection at multiple holes as described in claim 1, characterized in that: There are four sets of buffer rods (11), which are located at the four corners of the lifting platform (6).

4. The die-cutting machine with automatic waste suction and leakage detection at multiple holes as described in claim 1, characterized in that: The buffer rod (11) includes a sealing sleeve (1101) and a buffer piston rod (1102). The sealing sleeve (1101) is fixedly installed on the die-cutting table (2). The buffer piston rod (1102) is fixedly connected to the lifting table (6). The buffer piston rod (1102) is inserted into the sealing sleeve (1101).

5. The die-cutting machine with automatic waste suction and leakage detection at multiple holes as described in claim 1, characterized in that: A cleaning chamber door (10) is provided in front of the waste storage chamber (9). A sealing ring is provided around the cleaning chamber door (10). The sealing waste suction plate (23) is in sealed contact with the inner wall of the waste storage chamber (9) through the sealing ring.

6. The die-cutting machine with automatic waste suction and leakage detection at multiple holes as described in claim 1, characterized in that: The fluid actuator (12) is rotatably connected to a drive impeller (1201). The inlet and outlet of the fluid actuator (12) are arranged opposite to each other and are both located on the same side of the drive impeller (1201).

7. The die-cutting machine with automatic waste suction and leakage detection at multiple holes as described in claim 6, characterized in that: The ratchet mechanism (14) includes a ratchet gear (1401), which is fixedly connected to the drive impeller (1201) via a transmission rod. A ratchet sleeve (1402) is fixedly connected to one side of the first pulley (15). A movable tooth (1403) is rotatably connected to the inner side of the ratchet sleeve (1402) via a rotating shaft. A return spring (1404) is provided between the movable tooth (1403) and the inner wall of the ratchet sleeve (1402).

8. The die-cutting machine with automatic waste suction and leakage detection at multiple holes as described in claim 1, characterized in that: The elastic belt (20) is made of elastic rubber, and the elastic deformation length of the elastic belt (20) is greater than the distance change length between the fourth pulley (19) and the third pulley (18) when the fourth pulley (19) moves up and down.

9. The die-cutting machine with automatic waste suction and leakage detection at multiple holes as described in claim 1, characterized in that: A pressure adjusting plate (1307) is provided below the pressure spring (1306). The pressure adjusting plate (1307) is connected to a lifting screw (1308) via a screw nut. A servo motor (1309) is fixedly connected to the lower end of the lifting screw (1308) via a coupling. The servo motor (1309) is fixedly installed at the lower end of the fixed sleeve (1301).

10. The die-cutting machine with automatic waste suction and leakage detection at multiple holes as described in claim 1, characterized in that: The lower end of the buffer rod (11) is also connected to the lifting piston tube (21) by passing around the weight detection mechanism (13) through the pressure relief pipe (24), and a two-way pressure relief valve (25) is provided on the pressure relief pipe (24).

Images