A tarpaulin positioning and cutting device

Abstract

The present invention relates to the technical field of tarpaulin processing, and discloses a tarpaulin positioning and cutting device, which includes a workbench and a cutting assembly, a winding roller, a self-clamping assembly, a winding assembly, a positioning assembly and a self-unloading assembly adapted thereto. After the cutting assembly is completed, the positioning assembly of the present invention automatically releases the positioning restriction of the synchronous frame and drives the winding roller to wind the cut tarpaulin, making the entire production process more coherent, reducing manual intervention, improving the degree of automation of production, further enhancing the work efficiency, and at the same time, the pressing plate cooperates with the guide rail slope to synchronize the clamping unlocking and winding of the tarpaulin, reducing manual intervention, making the production process seamlessly connected, and greatly improving the operation efficiency; in terms of quality assurance, the self-clamping assembly accurately positions the tarpaulin to ensure the cutting accuracy, automatically unlocks to avoid manual damage to the fabric, reduces the defective rate, and the winding roller winds neatly to reduce the risk of subsequent fabric damage.

Description

Technical Field

[0001] The present invention belongs to the technical field of tarpaulin processing, and specifically relates to a tarpaulin positioning and cutting device. Background Art

[0002] In the field of tarpaulin processing, the positioning and cutting of tarpaulins is a key step in the production process, and its processing efficiency and quality have a significant impact on the production efficiency of enterprises and the quality of products. In the early stage, the cutting of tarpaulins mainly relied on manual operation. Workers held knives by experience to cut, which not only had a high labor intensity and low efficiency, but also was difficult to guarantee the cutting accuracy, with a high defective rate and difficult to meet the needs of large-scale production.

[0003] With the progress of technology, automated cutting equipment has gradually entered the tarpaulin processing industry. Some existing tarpaulin positioning and cutting devices mostly adopt a fixed positioning structure. It is necessary to manually unlock the positioning device to wind up the cut tarpaulin, and the winding operation also requires the use of a specific winder separately. This process not only increases the manual intervention link and reduces the degree of production automation, but also may cause unnecessary damage to the tarpaulin during the manual unlocking and winding process, increasing the production cost; in terms of debris treatment, the debris generated during the cutting process will fall around the tool holder, but generally the debris remaining on the surface of the tool holder is not considered during cleaning, which may affect the next cutting process.

[0004] In view of this, the present invention is specifically proposed. Summary of the Invention

[0005] In order to solve the above technical problems, the basic concept of the technical solution adopted by the present invention is:

[0006] A tarpaulin positioning and cutting device includes a workbench and a cutting assembly adapted thereto.

[0007] A sub-rolling roller for winding the cut tarpaulin is installed on the workbench;

[0008] A self-clamping assembly is installed on the workbench. The self-clamping assembly includes a synchronous frame slidably mounted on the workbench and connected by a guiding spring, and a pressing plate located above it. The two clamp both sides of the tarpaulin, and the pressing plate is slidably connected to a guide rail provided with a slope;

[0009] A self-winding assembly is installed on the workbench. The self-winding assembly includes a rack connected to the synchronous frame, and the rack is adapted to a gear installed on the sub-rolling roller;

[0010] A positioning assembly for positioning the position of the synchronous frame and automatically unlocking after cutting is installed on the workbench;

[0011] The workbench is also equipped with a self-unloading component. The self-unloading component includes a sealing plate connected to the synchronous frame, and the sealing plate is used to seal the material discharge opening formed on the workbench. A tool holder corresponding to the cutting component vertically is lapped on the sealing plate, and the tool holder is slidably connected to a bending rod installed on the workbench.

[0012] As a preferred embodiment of the present invention, four support legs are installed at the bottom corners of the workbench. Reinforcing ribs with different heights are installed between the four support legs. A receiving box is installed at the bottom of the workbench. The receiving box covers the bottom of the material discharge opening. An installation plate is installed on the side wall of the receiving box. The installation plate is screwed to the bottom of the workbench through bolts. The bottom of the receiving box is lapped on the support legs at the relative positions.

[0013] As a preferred embodiment of the present invention, two pairs of fixing seats are installed on the workbench. Each pair of fixing seats is divided into two parts and is screwed together through bolts. A winding roller is installed on one pair of fixing seats, and a splitting roller is installed on the other fixing seat. A tarpaulin is wound between the winding roller and the splitting roller.

[0014] As a preferred embodiment of the present invention, the cutting component includes a synchronous support. The synchronous support is installed on the surface of the workbench. An electric push rod is installed on the top of the synchronous support. The output end of the electric push rod movably penetrates the synchronous support, and a cutting knife is installed at the end of the output of the electric push rod. The cutting knife corresponds to the tool holder.

[0015] As a preferred embodiment of the present invention, a fixed table is installed on one side of the workbench. The upper surface of the fixed table is located below the tarpaulin. A clamping plate is arranged on the fixed table and is located above the tarpaulin. A locking bolt is screwed through the clamping plate, and the end of the locking bolt is screwed into the interior of the fixed table. A vertical rod is installed on the fixed table, and the vertical rod movably penetrates the clamping plate.

[0016] As a preferred embodiment of the present invention, a synchronous slider is installed on the synchronous frame. A guiding groove is formed on the surface of the workbench. The synchronous slider is slidably arranged in the guiding groove. Guiding rods are installed at both ends of the guiding groove. The guiding rods movably penetrate the synchronous slider. A guiding spring is sleeved on the guiding rod. One end of the guiding spring is clamped on the side wall of the guiding groove, and the other end of the guiding spring is clamped on the synchronous slider. The guiding spring is in a compressed state.

[0017] As a preferred embodiment of the present invention, a connecting rod is installed on the pressing plate. The connecting rod is slidably arranged in a through groove formed in the center of the guide rail. A sliding rod is installed at the top of the connecting rod. The sliding rod is attached to the surface of the guide rail. An installation frame is installed at the end of the guide rail, and the installation frame is installed on the workbench. A limiting rod is installed through the pressing plate. The bottom of the limiting rod is installed on the synchronous frame. A limiting plate is installed at the top of the limiting rod. A limiting spring is sleeved on the limiting rod. One end of the limiting spring is clamped on the pressing plate, and the other end is clamped on the limiting plate.

[0018] As a preferred embodiment of the present invention, a connecting frame is installed on the side wall of the rack. The connecting frame is installed on the side wall of the synchronous frame. A positioning rod is installed on the side wall of the connecting frame. A positioning seat is horizontally slidably arranged on the positioning rod, and the positioning seat is welded on the workbench.

[0019] As a preferred embodiment of the present invention, the positioning assembly includes a clamping rod. The clamping rod is installed on the side wall of the synchronous frame, and a clamping groove is formed in the clamping rod. A clamping plate is clamped on the clamping groove. The central position of the clamping plate is rotatably connected to a connecting seat installed on the surface of the workbench. A torsion spring is clamped between the clamping plate and the connecting seat. A top rod is installed at the output end of the cutting assembly, and the top rod corresponds to one end of the clamping plate.

[0020] As a preferred embodiment of the present invention, a side bracket is installed on the side wall of the tool holder. A collar is installed on the side bracket. The collar is slidably arranged on the bent rod. A tension spring is installed on the side wall of the collar. The end of the tension spring is installed on the workbench, and the tension spring is in an inclined state. A positioning plate is installed at the top of the bent rod, and the diameter of the positioning plate is larger than the diameter of the collar.

[0021] The present invention has the following beneficial effects compared with the prior art:

[0022] After the cutting component of the positioning component of the present invention is completed, the positioning restriction of the synchronous frame is automatically released, and the rewinding roller is driven to wind the cut tarpaulin, making the entire production process more coherent, reducing manual intervention, improving the automation degree of production, further enhancing work efficiency, and at the same time, the pressing plate and the guide rail slope cooperate to synchronize the clamping unlocking and winding of the tarpaulin, reducing manual intervention, making the production process seamlessly connected, and greatly improving the operation efficiency; in terms of quality assurance, the self-clamping component accurately positions the tarpaulin to ensure the cutting accuracy, automatically unlocks to avoid manual damage to the fabric, reduces the defective rate, and the rewinding roller winds neatly to reduce the risk of subsequent fabric damage; in terms of equipment life, the tool holder slides along the bending rod, and the cutting knife is vertically separated first after cutting to avoid collision, prolonging the service life of the tool and reducing the replacement cost; in terms of optimizing the working environment, the cooperation of the sealing plate and the blanking port enables the tool holder to tilt and slide off debris for automatic collection, keeping the working area clean, reducing equipment failures, reducing manual cleaning, and improving safety and cleanliness. The following further describes in detail the specific implementation manners of the present invention with reference to the accompanying drawings. Description of the Drawings

[0023] In the drawings:

[0024] Figure 1 is a three-dimensional structural schematic diagram of a tarpaulin positioning and cutting device;

[0025] Figure 2 is an overall bottom view of a tarpaulin positioning and cutting device;

[0026] Figure 3 is a front structural schematic diagram of a tarpaulin positioning and cutting device;

[0027] Figure 4 is a Figure 3 magnified view at position A of a tarpaulin positioning and cutting device;

[0028] Figure 5 is a partial structural schematic Figure 1 ;

[0029] Figure 6 is a Figure 5 magnified view at position B of a tarpaulin positioning and cutting device;

[0030] Figure 7 is a partial structural schematic Figure 2 ;

[0031] Figure 8 is a Figure 7 bottom view of a tarpaulin positioning and cutting device.

[0032] In the figure:

[0033] 1. Workbench; 11. Support leg; 111. Reinforcing rib; 12. Fixed seat; 13. Rewinding roller; 14. Unwinding roller; 15. Feeding port; 151. Material receiving box; 152. Mounting plate; 16. Synchronous bracket; 161. Electric push rod; 162. Cutting knife; 17. Fixed table; 171. Clamping plate; 172. Vertical rod; 173. Locking bolt; 18. Knife seat; 181. Side bracket; 182. Collar; 183. Tension spring; 184. Bent rod; 185. Positioning plate;

[0034] 2. Pressure plate; 21. Synchronous frame; 211. Synchronous slider; 212. Guide groove; 213. Guide rod; 214. Guide spring; 22. Limit rod; 221. Limit plate; 222. Limit spring; 23. Sealing plate; 24. Connecting rod; 241. Slide rod; 242. Guide rail; 243. Slope; 244. Mounting frame;

[0035] 3. Rack; 31. Gear; 311. Connecting frame; 32. Positioning rod; 321. Positioning seat; 4. Clamping rod; 41. Card slot; 42. Card plate; 421. Connecting seat; 422. Torsion spring; 43. Thrust rod. Detailed implementation manners

[0036] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the following will clearly and completely describe the technical solutions in the embodiments in conjunction with the accompanying drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention.

[0037] Embodiment 1: As Figures 1 to 8 shown, a tarpaulin positioning and cutting device includes a workbench 1 and a cutting assembly adapted thereto.

[0038] An unwinding roller 14 for winding the cut tarpaulin is installed on the workbench 1; through the rewinding operation, the time and effort required for manual rewinding are greatly reduced, and at the same time, the flatness and tightness of the rewinding are ensured, which is convenient for subsequent storage and transportation.

[0039] A self-clamping assembly is installed on the workbench 1. The self-clamping assembly includes a synchronous frame 21 slidably connected to the workbench 1 and connected by a guide spring 214, and a pressure plate 2 located above it. The two clamp the two sides of the tarpaulin. The above structure realizes the automatic clamping of the tarpaulin. This automatic clamping method is more accurate in positioning than manual clamping, greatly reducing the positioning deviation caused by manual operation errors, thereby effectively improving the cutting accuracy. The pressure plate 2 is slidably connected to a guide rail 242 provided with a slope 243; this provides convenience for subsequent clamping unlocking, realizes the automatic connection of the clamping and unlocking links, and improves the overall work efficiency.

[0040] The workbench 1 is equipped with a self - rewinding component. The self - rewinding component includes a rack 3 connected to the synchronization frame 21, and the rack 3 is adapted to the gear 31 installed on the splitting roller 14. This design ingeniously converts the sliding motion of the synchronization frame into the rotational motion of the splitting roller. The cooperation between various components is tight, and the degree of automation is high, greatly improving the winding efficiency.

[0041] The workbench 1 is equipped with a positioning component for positioning the position of the synchronization frame 21 and automatically unlocking after cutting. The automatic unlocking function of the positioning component reduces manual intervention, not only improves work efficiency but also reduces the risk of equipment failure caused by human negligence.

[0042] The workbench 1 is also equipped with a self - discharging component. The self - discharging component includes a sealing plate 23 connected to the synchronization frame 21, and the sealing plate 23 is used to seal the material - discharging opening 15 opened on the workbench. A knife seat 18 corresponding to the cutting component vertically is lapped on the sealing plate 23, and the knife seat 18 is slidably connected to the bending rod 184 installed on the workbench. During the cutting process, the sealing plate effectively prevents debris from scattering and keeps the working area clean. The automatic sliding of the knife seat ensures that the debris can smoothly fall into the material - receiving box without manual cleaning, reducing the labor intensity.

[0043] As Figures 1 to 8 shown, in the specific implementation, four support legs 11 are installed at the bottom corners of the workbench 1, enhancing the stability of the equipment. The stable support structure effectively reduces the vibration of the equipment during operation, ensures the cutting accuracy, and prolongs the service life of the equipment. Reinforcing ribs 111 with different heights are installed between the four support legs 11, further improving the load - bearing capacity of the workbench, ensuring that the equipment can bear a relatively heavy tarpaulin and other components, and improving the durability of the equipment. A material - receiving box 151 is installed at the bottom of the workbench 1. The material - receiving box 151 covers the bottom of the material - discharging opening 15 and is used to collect the debris generated during the cutting process. This design facilitates the centralized treatment of the debris and avoids the impact of debris accumulation on the working environment and equipment operation. An installation plate 152 is installed on the side wall of the material - receiving box 151 and is screwed to the bottom of the workbench 1 through bolts, facilitating the installation and disassembly of the material - receiving box. The bottom of the material - receiving box 151 is lapped on the support legs 11 at the relative positions, ensuring the stability of the material - receiving box and preventing it from shaking or tipping during the process of collecting debris.

[0044] As Figures 1 to 8As shown in the figure, further, two pairs of fixing seats 12 are installed on the workbench 1. Each pair of fixing seats 12 is divided into two parts and is connected by screwing with bolts. This detachable design facilitates the installation, maintenance, and replacement of the fixing seats, reducing the maintenance cost of the equipment. One pair of fixing seats 12 is installed with a winding roller 13, and the other pair of fixing seats 12 is installed with a splitting roller 14. A tarpaulin is wound between the winding roller 13 and the splitting roller 14, providing raw materials for the cutting work. The reasonable layout of the rollers facilitates the operator to load materials and adjust the position of the tarpaulin, improving work efficiency.

[0045] Embodiment 2: The difference between this embodiment and Embodiment 1 is as follows: As Figures 1 to 8 shown in the figure, the cutting assembly includes a synchronous bracket 16. The synchronous bracket 16 is installed on the surface of the workbench 1, and an electric push rod 161 is installed on the top. The output end of the electric push rod 161 movably penetrates through the synchronous bracket 16, and a cutter 162 is installed at the end. The cutter 162 corresponds to the tool holder 18, realizing precise cutting operation. The electric push rod can provide stable and controllable thrust, making the cutting force of the cutter uniform, greatly improving the cutting accuracy and quality. At the same time, compared with manual cutting, the work efficiency is greatly improved, and the labor intensity is reduced.

[0046] As Figures 1 to 8 shown in the figure, in the specific implementation, a fixed platform 17 is installed on one side of the workbench 1. The upper surface of the fixed platform 17 is located below the tarpaulin. A clamping plate 171 is provided on the fixed platform 17, and the clamping plate 171 is located above the tarpaulin. A locking bolt 173 is installed through the clamping plate 171 by screwing, and the end of the locking bolt 173 is screwed into the inside of the fixed platform 17. By rotating the locking bolt 173, the clamping and positioning of the tarpaulin can be realized. With this simple and easy-to-use clamping method, the operator can quickly complete the positioning of the tarpaulin, improving work efficiency, and the clamping is firm, ensuring that the tarpaulin will not be displaced during the cutting process. A vertical rod 172 is installed on the fixed platform 17, and the vertical rod 172 movably penetrates through the clamping plate 171, ensuring the stable movement of the clamping plate 171 and avoiding shaking during the clamping process, further improving the accuracy of positioning.

[0047] As Figures 1 to 8 shown in the figure, further, a synchronous slider 211 is installed on the synchronous frame 21. A guide groove 212 is opened on the surface of the workbench 1, and the synchronous slider 211 is slidably arranged in the guide groove 212. Guide rods 213 are installed at both ends of the guide groove 212, and the guide rods 213 movably penetrate through the synchronous slider 211. A guide spring 214 is sleeved on the guide rod 213. One end of the guide spring 214 is clamped on the side wall of the guide groove 212, and the other end is clamped on the synchronous slider 211, and the guide spring 214 is in a compressed state, providing power for the sliding of the synchronous frame 21. The cooperation of the guide rod and the guide groove effectively limits the movement track of the synchronous frame, ensuring its smooth sliding. At the same time, the stable driving force provided by the guide spring ensures the continuity and stability of the equipment operation.

[0048] As shown in Figures 1 to 8 Figure [not provided], further, a connecting rod 24 is installed on the pressing plate 2. The connecting rod 24 is slidably arranged in the through groove at the center of the guide rail 242. A sliding rod 241 is installed at the top of the connecting rod 24, and the sliding rod 241 is attached to the surface of the guide rail 242. An installation frame 244 is installed at the end of the guide rail 242, and the installation frame 244 is installed on the workbench 1. A limiting rod 22 is installed through the pressing plate 2. The bottom of the limiting rod 22 is installed on the synchronous frame 21, and a limiting plate 221 is installed at the top. A limiting spring 222 is sleeved on the limiting rod 22. One end of the limiting spring 222 is clamped on the pressing plate 2, and the other end is clamped on the limiting plate 221, realizing the stable control of the pressing plate 2. The design of the limiting rod and the limiting spring not only ensures the stability of the pressing plate during the clamping process, but also can automatically adjust the clamping force according to the thickness of the tarpaulin, avoiding damage to the tarpaulin due to excessive clamping force or displacement of the tarpaulin due to insufficient clamping force.

[0049] Example 3: The difference between this example and Example 2 is that: As shown in Figures 1 to 8 Figure [not provided], a connecting frame 311 is installed on the side wall of the rack 3. The connecting frame 311 is installed on the side wall of the synchronous frame 21. A positioning rod 32 is installed on the side wall of the connecting frame 311. A positioning seat 321 is horizontally slidably arranged on the positioning rod 32, and the positioning seat 321 is welded to the workbench 1, ensuring the stable movement of the rack 3. The cooperation of the positioning rod and the positioning seat effectively prevents the rack from shifting during the movement, ensuring the smooth and accurate winding action of the rewinding roller and improving the winding quality.

[0050] As shown in Figures 1 to 8 Figure [not provided], in the specific implementation manner, the positioning component includes a clamping rod 4. The clamping rod 4 is installed on the side wall of the synchronous frame 21. A clamping groove 41 is formed on the clamping rod 4, and a clamping plate 42 is clamped on the clamping groove 41. The center position of the clamping plate 42 is rotatably connected to a connecting seat 421 installed on the surface of the workbench 1. A torsion spring 422 is clamped between the clamping plate 42 and the connecting seat 421. A top rod 43 is installed at the output end of the cutting component, and the top rod 43 corresponds to one end of the clamping plate 42, realizing the automatic unlocking of the positioning component. This design cleverly utilizes the movement of the cutting knife during the cutting process to realize the automatic unlocking of the positioning component, reducing additional control devices, lowering the equipment cost, and at the same time improving the automation degree and operation stability of the equipment.

[0051] As shown in Figures 1 to 8As shown in the figure, further, a side bracket 181 is installed on the side wall of the tool holder 18, a collar 182 is installed on the side bracket 181, and the collar 182 is slidably arranged on the bent rod 184. A tension spring 183 is installed on the side wall of the collar 182, and the end of the tension spring 183 is installed on the workbench 1. The tension spring 183 is in an inclined state. A positioning plate 185 is installed at the top of the bent rod 184. The diameter of the positioning plate 185 is larger than the diameter of the collar 182, ensuring the stable sliding of the tool holder 18 and the smooth cleaning of debris. The pulling force provided by the tension spring enables the tool holder to reset in time, ensuring the continuity of the equipment operation. The positioning plate prevents the collar from falling off the bent rod, ensuring the accurate movement track of the tool holder and effectively cleaning the debris.

[0052] The implementation principle of a tarpaulin positioning and cutting device of the present invention is as follows:

[0053] First, the operator pulls out the tarpaulin originally located on the winding roller 13, then passes the tarpaulin through the gap between the fixed table 17 and the clamping plate 171 respectively, and then through the gap between the pressing plate 2 and the synchronous frame 21, and finally connects it to the surface of the splitting roller 14. Then the operator rotates the locking bolt 173 so that the fixed table 17 and the clamping plate 171 can be closely attached, thereby clamping and positioning the tarpaulin.

[0054] Finally, it can form Figure 7 a state. In this state, at this time, under the action of the limit spring 222, the pressing plate 2 can drive the pressing plate 2 to press downward, so as to squeeze with the synchronous frame 21 to achieve the clamping purpose. And at this time, the synchronous slider 211 on the side wall of the synchronous frame 21 is located at the leftmost side of the guide groove 212, and at this time the guide spring 214 is in a compressed state synchronously.

[0055] In the above state, the operator can start the cutting assembly. When the electric push rod 161 is started, its output end pushes the cutter 162 downward. The cutter 162 rapidly approaches the tool holder 18, and under their precise cooperation, the cutting action of the tarpaulin is completed. After cutting, a part of the debris falls into the discharge port 15, and another part may be on the upper surface of the tool holder 18. At the same time, when the cutter 162 moves downward, the ejector rod 43 installed at its output end also moves downward. The ejector rod 43 contacts one end of the clamping plate 42 and applies a thrust to it, causing the clamping plate 42 to rotate around the connecting seat 421, and the clamping plate 42 disengages from the card slot 41 on the card rod 4, thereby releasing the positioning restriction on the synchronous frame 21 (the cutting operation has been completed when releasing). This design of automatic unlocking and positioning avoids the cumbersome manual operation, improves the work efficiency, reduces the labor cost, and at the same time reduces the problem of inaccurate positioning caused by human operation errors.

[0056] The synchronous frame 21 that loses the positioning restraint starts to slide to the right along the guide groove 212 under the action of the restoring force of the guide spring 214.

[0057] During the sliding process of the synchronization frame 21, the rack 3 is driven to move synchronously to the right through the connecting frame 311. Since the rack 3 is adapted to the gear 31 on the rewinding roller 14, the movement of the rack 3 causes the rewinding roller 14 to rotate, thereby winding the cut tarpaulin. The function of automatically winding the fabric after cutting makes the entire production process more coherent, reduces manual intervention, improves the automation level of production, and further enhances the work efficiency. Moreover, the neatly wound fabric is convenient for subsequent handling, storage and use, reducing the risk of wrinkles and damage to the fabric during subsequent processing.

[0058] When the synchronization frame 21 slides to the right, the connected sealing plate 23 also moves synchronously, and the blanking port 15 gradually opens, allowing the debris originally located therein to fall. And at this time, the tool holder 18 slides downward along the bent rod 184 under the pulling force of the tension spring 183. During the downward sliding process of the tool holder 18, it first moves vertically and separates from the cutting knife 162, avoiding the collision and damage of the two tools during subsequent operations, and extending the service life of the tool. Then the tool holder 18 slides obliquely, making the top of the tool holder become inclined. At this time, the debris generated during the cutting process can slide down along the inclined top of the tool holder and fall into the material receiving box 151 through the blanking port 15, realizing the automatic collection of debris. This design not only keeps the working area clean, reduces the impact of debris on the normal operation of the equipment, reduces the incidence of equipment failures, but also reduces the workload of manual debris cleaning, improving the safety and cleanliness of the working environment. During the sliding process of the synchronization frame 21, the connecting rod 24 on the pressing plate 2 moves along with the synchronization frame 21, and the sliding rod 241 at the top of the connecting rod 24 slides along the surface of the guide rail 242. When the sliding rod 241 slides to the slope 243 position of the guide rail 242, due to the guiding action of the slope 243, the sliding rod 241 will slide upward along the slope 243, thereby driving the connecting rod 24 to move upward, and the connecting rod 24 drives the pressing plate 2 to move upward. The upward movement of the pressing plate 2 increases the distance between it and the synchronization frame 21, realizing the automatic unlocking of the clamping of the tarpaulin, and this process is synchronized with the movement of the synchronization frame 21 and the winding action of the rewinding roller 14. The function of automatically unlocking the clamping avoids the possible damage to the fabric caused by manual unlocking, ensures the quality of the fabric, and also makes the entire cutting, unlocking and winding process more smooth, improving the overall work efficiency.

Claims

1. A tarpaulin positioning and cutting device, comprising a workbench (1) and a cutting assembly adapted thereto, characterized in that: The workbench (1) is provided with a winding roller (14) for winding the cut tarpaulin; A self-clamping assembly is installed on the workbench (1), and the self-clamping assembly comprises a synchronous frame (21) that slides on the workbench (1) and is connected via a guide spring (214), and a pressing plate (2) located above the synchronous frame, and the two are clamped on both sides of the tarpaulin, and the pressing plate (2) is slidably connected to a guide rail (242) provided with a slope (243); A synchronous slider (211) is installed on the synchronous frame (21), a guide groove (212) is provided on the surface of the workbench (1), the synchronous slider (211) is slidably arranged in the guide groove (212), guide rods (213) are installed at both ends of the guide groove (212), the guide rods (213) and the synchronous slider (211) are movably interpenetrating, the guide spring (214) is sleeved on the guide rod (213), one end of the guide spring (214) is clamped on the side wall of the guide groove (212), the other end of the guide spring (214) is clamped on the synchronous slider (211), and the guide spring (214) is in a compressed state; A connecting rod (24) is installed on the pressing plate (2), and the connecting rod (24) is slidably arranged in a through groove opened in the center of the guide rail (242). A sliding rod (241) is installed on the top of the connecting rod (24), and the sliding rod (241) is attached to the surface of the guide rail (242). A mounting frame (244) is installed at the end of the guide rail (242), and the mounting frame (244) is installed on the workbench (1). A limiting rod (22) is installed through the pressing plate (2), and the bottom of the limiting rod (22) is installed on the synchronous frame (21). A limiting plate (221) is installed on the top of the limiting rod (22). A limiting spring (222) is sleeved on the limiting rod (22), and one end of the limiting spring (222) is clamped on the pressing plate (2), and the other end is clamped on the limiting plate (221). A self-winding assembly is installed on the workbench (1), and the self-winding assembly comprises a rack (3) connected to the synchronization frame (21), and the rack (3) is adapted to a gear (31) installed on the winding roller (14); The workbench (1) is provided with a positioning component for positioning the synchronization frame (21) and automatically unlocking the position after cutting is completed; The workbench (1) is also equipped with a self-unloading assembly, the self-unloading assembly comprising a sealing plate (23) connected to the synchronous frame (21), and the sealing plate (23) is used to seal the unloading opening (15) opened on the workbench, and a knife seat (18) vertically corresponding to the cutting assembly is overlapped on the sealing plate (23), and the knife seat (18) is slidably connected to a bending rod (184) installed on the workbench; The positioning assembly comprises a clamping rod (4), the clamping rod (4) being mounted on a side wall of the synchronous frame (21), and a clamping slot (41) being formed on the clamping rod (44), a clamping plate (42) being clamped on the clamping slot (41), the center of the clamping plate (42) being rotatably connected to a connecting seat (421) mounted on the surface of the workbench (1), a torsion spring (422) being clamped between the clamping plate (42) and the connecting seat (421), and a push rod (43) being mounted on the output end of the cutting assembly, and the push rod (43) and one end of the clamping plate (42) corresponding to each other.

2. A tarpaulin positioning and cutting device according to claim 1, characterized in that: Four supporting legs (11) are installed at the bottom corners of the workbench (1), and reinforcing ribs (111) of different heights are installed between the four supporting legs (11). A material receiving box (151) is installed at the bottom of the workbench (1), and the material receiving box (151) covers the bottom of the material discharge port (15). A mounting plate (152) is installed on the side wall of the material receiving box (151), and the mounting plate (152) is screwed and connected to the bottom of the workbench (1) by bolts. The bottom of the material receiving box (151) overlaps the supporting legs (11) in a relative position.

3. A tarpaulin positioning and cutting device according to claim 1, characterized in that: Two pairs of fixed seats (12) are installed on the workbench (1), each pair of fixed seats (12) is divided into two parts and connected by bolts, one pair of fixed seats (12) is installed with a winding roller (13), and the other fixed seat (12) is installed with a winding roller (14), and a tarpaulin is wound between the winding roller (13) and the winding roller (14).

4. A tarpaulin positioning and cutting device according to claim 1, characterized in that: The cutting assembly comprises a synchronous bracket (16), the synchronous bracket (16) being mounted on the surface of a workbench (1), an electric push rod (161) being mounted on the top of the synchronous bracket (16), an output end of the electric push rod (161) movably passing through the synchronous bracket (16), and a cutter (162) being mounted on the output end of the electric push rod (161), the cutter (162) corresponding to the cutter seat (18).

5. The tarpaulin positioning and cutting device according to claim 1, characterized in that: A fixed platform (17) is installed on one side of the workbench (1), the upper surface of the fixed platform (17) is located below the tarpaulin, a clamping plate (171) is arranged on the fixed platform (17), and the clamping plate (171) is located above the tarpaulin, and a locking bolt (173) is screwed through the clamping plate (171), and the end of the locking bolt (173) is screwed into the inside of the fixed platform (17), and a vertical rod (172) is installed on the fixed platform (17), and the vertical rod (172) and the clamping plate (171) are movably inserted.

6. A tarpaulin positioning and cutting device according to claim 1, characterized in that: A connecting frame (311) is installed on the side wall of the rack (3), and the connecting frame (311) is installed on the side wall of the synchronous frame (21). A positioning rod (32) is installed on the side wall of the connecting frame (311), and a positioning seat (321) is horizontally slidably arranged on the positioning rod (32), and the positioning seat (321) is welded on the workbench (1).

7. A tarpaulin positioning and cutting device according to claim 1, characterized in that: The side wall of the knife seat (18) is installed with a side bracket (181), and the side bracket (181) is installed with a ring (182), and the ring (182) is slidably set on a bending rod (184). The side wall of the ring (182) is installed with a tension spring (183), and the end of the tension spring (183) is installed on the workbench (1), and the tension spring (183) is in an inclined state. A positioning plate (185) is installed on the top of the bending rod (184), and the diameter of the positioning plate (185) is larger than the diameter of the ring (182).

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