Pneumatic material pressing device of plastic plate shearing machine
By designing a pneumatic pressing device in a plastic shearing machine, using components such as electric telescopic rods, pressure sensors and cylinders, the problem of the self-weight pressing plate not enough to make the plate thickness larger than 3 mm standstill, and the precise cutting of the plate is achieved.
Patent Information
- Application Number
- CN202421356704.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-14
- Publication Date
- 2025-03-04
- Estimated Expiration
- 2034-06-14
AI Technical Summary
Some existing plastic shearing machines use self-weight pressing plates. The pressing plate moves downward synchronously with the cutter, and can only apply pressure to the continuously conveyed plates by their own weight. When producing plates with a thickness greater than 3 mm, the self-weight of the pressing plates is not enough to keep the plates in an absolutely static state, which can easily cause too large plate length errors.
A pneumatic pressure device for plastic shearing machines is designed, using an electric telescopic rod, pressure sensor, scale, first scale needle, sliding plate, second scale needle and cylinder. The cylinder drives the pressure plate to press the material, so that the plastic sheet is stationary and ensures the cutting accuracy of the sheet.
Through this device, the positions of the electric telescopic rod and pressure sensor can be adjusted as needed, the cutting length of the plastic sheet can be adjusted, and the pressure plate can be pressed through the cylinder to make the plastic sheet stationary, ensuring the cutting accuracy of the sheet, and solving the problem of excessive error in the length of the sheet greater than 3 mm.
Smart Images
Figure CN222553720U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of plastic processing, in particular to a pneumatic material pressing device for a plastic shearing machine. Background Art
[0002] The plastic shearing machine can use a reasonable blade gap to apply cutting force to plastic sheets of various thicknesses, so that the sheets can be broken and separated according to the required size. The plastic shearing machine can produce plastic sheets of various sizes.
[0003] The sheet is continuously conveyed forward during the production process. Ideally, the sheet should be in a stationary state when the cutting action is completed to ensure that the length error of the sheet is minimized. Some existing plastic shearing machines use a self-weight pressing plate. The pressing plate moves downward synchronously with the cutter and can only rely on its own weight to apply pressure to the continuously conveyed sheet. When producing sheets with a thickness greater than 3 mm, the self-weight of the pressing plate is not enough to keep the sheet in an absolutely stationary state, which can easily cause excessive error in the length of the sheet. Therefore, a pneumatic pressing device for a plastic shearing machine is proposed to address the above problems. Utility Model Content
[0004] The purpose of the utility model is to provide a pneumatic pressing device for a plastic shearing machine to solve the problem that some existing plastic shearing machines use a self-weight pressing plate, which moves downward synchronously with the cutting knife and can only rely on its own weight to apply pressure to the continuously conveyed plate. When producing plates with a thickness greater than 3 mm, the self-weight of the pressing plate is not enough to keep the plate in an absolutely static state, which easily causes the problem of excessive error in the length of the plate.
[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0006] The pneumatic pressing device of the plastic shearing machine comprises a workbench, a cutting knife and a pressing plate, a baffle is fixedly connected to the rear side of the top of the workbench, two driving motors are fixedly connected to the front side of the workbench, a pair of left-right symmetrical adjusting rods are rotatably connected inside the workbench, the rear spindles of the driving motors are fixedly connected to the adjusting rods, a pair of left-right symmetrical transmission blocks are slidably connected inside the workbench, the outer sides of the adjusting rods are spirally connected to the transmission blocks, the tops of the transmission blocks are fixedly connected to electric telescopic rods, the inner rods of the electric telescopic rods are fixedly connected to pressure sensors, the left and right sides of the workbench are fixedly connected to scales and first scale needles, the left and right sides of the workbench are slidably connected to sliding plates, the lower sides of the electric telescopic rods are fixedly connected to sliding plates, and the relative outer sides of the two sliding plates are fixedly connected to second scale needles, the cutting knife and the steel beam are fixedly connected to the rear side of the top of the workbench, two fixed blocks are fixedly connected to the top of the steel beam, the front sides of the fixed blocks are fixedly connected to cylinders, and the bottom ends of the cylinders are fixedly connected to the pressing plate.
[0007] Preferably, the workbench is composed of a rectangular plate, four rectangular support shafts and two pairs of rectangular connecting blocks. The bottom of the rectangular plate of the workbench is fixedly connected to the four rectangular support shafts, the top of the rectangular plate of the workbench is fixedly connected to the two pairs of rectangular connecting blocks, and two rectangular sliding grooves in the front and rear directions are provided on the upper side of the rectangular plate of the workbench.
[0008] Preferably, the main shafts of the driving motors are horizontally facing backwards, the adjusting rods are horizontally distributed in the front-to-back direction, the outer sides of the adjusting rods are provided with threaded protrusions, the inner sides of the transmission blocks are provided with threaded grooves, the two electric telescopic rods are symmetrical on the left and right, and the electric telescopic rods are horizontally distributed in the left and right directions.
[0009] Preferably, the scale is provided with scales, the position of the first scale needle in the front-to-back direction is consistent with the position of the blade of the cutting knife, and the bottom end of the first scale needle is aligned with the zero scale of the scale.
[0010] Preferably, the two sliding plates are symmetrical, both of which are "L"-shaped bent plates, the position of the second scale needle in the front-to-back direction is consistent with the position of the rear side of the pressure sensor, and the lower half of the second scale needle is in contact with the scale.
[0011] Preferably, the steel beam is horizontally distributed in the left and right directions, the two cylinders are vertically distributed downward, and the pressure plate is horizontally distributed.
[0012] Compared with the prior art, the beneficial effects of the utility model are:
[0013] In the utility model, by arranging the electric telescopic rod, the pressure sensor, the scale, the first scale needle, the sliding plate, the second scale needle and the cylinder, the device can adjust the positions of the electric telescopic rod and the pressure sensor as needed, thereby adjusting the cutting length of the plastic sheet, and driving the pressing plate to press the material through the cylinder to make the plastic sheet stationary, thereby ensuring the cutting accuracy of the sheet. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0015] Figure 2 This is a schematic diagram of the installation structure of the pressure sensor of the utility model;
[0016] Figure 3 This is a schematic diagram of the installation structure of the transmission block of the utility model;
[0017] Figure 4 This is a schematic diagram of the installation structure of the press plate of the utility model.
[0018] In the figure: 1. workbench; 2. baffle; 3. drive motor; 4. adjustment rod; 5. transmission block; 6. electric telescopic rod; 7. pressure sensor; 8. scale; 9. first scale needle; 10. sliding plate; 11. second scale needle; 12. cutting knife; 13. steel beam; 14. fixed block; 15. cylinder; 16. pressing plate. DETAILED DESCRIPTION
[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0020] In the description of the present utility model, it needs to be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present utility model; the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.
[0021] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the utility model.
[0022] See also Figure 1-4 , the utility model provides a technical solution:
[0023] The pneumatic pressing device of the plastic shearing machine comprises a workbench 1, a cutting knife 12 and a pressing plate 16, a baffle 2 is fixedly connected to the rear side of the top of the workbench 1, two driving motors 3 are fixedly connected to the front side of the workbench 1, a pair of left-right symmetrical adjusting rods 4 are rotatably connected inside the workbench 1, the rear spindles of the driving motors 3 are fixedly connected to the adjusting rods 4, a pair of left-right symmetrical transmission blocks 5 are slidably connected inside the workbench 1, the outer sides of the adjusting rods 4 are spirally connected to the transmission blocks 5, the tops of the transmission blocks 5 are fixedly connected to electric telescopic rods 6, and the inner rods of the electric telescopic rods 6 are fixed A pressure sensor 7 is fixedly connected, a scale 8 and a first scale needle 9 are fixedly connected to the left and right sides of the workbench 1, a sliding plate 10 is slidably connected to the left and right sides of the workbench 1, the lower side of the electric telescopic rod 6 is fixedly connected to the sliding plate 10, the relatively outer sides of the two sliding plates 10 are fixedly connected to the second scale needle 11, a cutting knife 12 and a steel beam 13 are fixedly connected to the top rear side of the workbench 1, two fixed blocks 14 are fixedly connected to the top of the steel beam 13, the front sides of the fixed blocks 14 are fixedly connected to the cylinders 15, and the bottom ends of the cylinders 15 are fixedly connected to the pressing plates 16.
[0024] The workbench 1 is composed of a rectangular plate, four rectangular support shafts and two pairs of rectangular connecting blocks. The bottom of the rectangular plate of the workbench 1 is fixedly connected to four rectangular support shafts, the top of the rectangular plate of the workbench 1 is fixedly connected to two pairs of rectangular connecting blocks, and the upper side of the rectangular plate of the workbench 1 is provided with two rectangular sliding grooves in the front-to-back direction, and the workbench 1 can support the plastic sheet to be cut; the spindles of the driving motors 3 are all horizontally backward, the adjusting rods 4 are all horizontally distributed in the front-to-back direction, the outer sides of the adjusting rods 4 are all provided with threaded protrusions, the inner sides of the transmission blocks 5 are all provided with threaded grooves, the two electric telescopic rods 6 are symmetrical on the left and right, and the electric telescopic rods 6 are all horizontally distributed in the left and right directions, which can drive the pressure sensor 7 to move to avoid the cut plastic sheet; the scale 8 is provided with scales The position of the first scale needle 9 in the front-to-back direction is consistent with the blade position of the cutting knife 12, the bottom end of the first scale needle 9 is aligned with the zero scale of the scale ruler 8, and the distance between the first scale needle 9 and the second scale needle 11 can be observed through the scale ruler 8; the two sliding plates 10 are symmetrical, and the sliding plates 10 are all "L"-shaped bent plates. The position of the second scale needle 11 in the front-to-back direction is consistent with the position of the rear side of the pressure sensor 7, and the lower half of the second scale needle 11 is in contact with the scale ruler 8, so the position of the second scale needle 11 and the pressure sensor 7 can be easily observed; the steel beam 13 is horizontally distributed in the left and right directions, the two cylinders 15 are vertically distributed downward, and the pressing plate 16 is horizontally distributed, which can temporarily fix the plastic sheet to be cut.
[0025] Working process: before use, the device is installed in the plastic sheet production line and powered on. The rear side of the device is provided with a conveying device for transporting the finished plastic sheets to be cut, and the front side of the device is provided with a collecting device for collecting the cut plastic sheets. The device is provided with an external controller, and the external controller of the device can control the drive motor 3, the electric telescopic rod 6, the pressure sensor 7, the cutting knife 12 and the cylinder 15, all of which are prior art. When using the device, first adjust the electric telescopic rod 6 and the pressure sensor 7 according to the length of the plastic sheet to be produced, manually operate the external controller to start the drive motor 3, so that the two drive motors 3 rotate at the same speed and in opposite directions, and the drive motor 3 drives the adjusting rod 4 to rotate. Since the workbench 1 can limit the transmission block 5 so that it cannot rotate, the transmission block 5 spirally connected to the adjusting rod 4 will be rotated. The section rod 4 drives the workbench 1 to move forward and backward along the rectangular sliding groove, and the two adjusting rods 4 have opposite thread directions and opposite rotation directions, so the transmission block 5 has the same moving direction, and the transmission block 5 can drive the electric telescopic rod 6 and the pressure sensor 7 to move forward and backward, thereby driving the sliding plate 10 and the second scale needle 11 to move synchronously. Since the first scale needle 9 and the scale 8 are fixed to the side of the workbench 1, the position of the first scale needle 9 in the front-to-back direction is consistent with the blade position of the cutting knife 12, and the bottom end of the first scale needle 9 is aligned with the zero scale of the scale 8, and the position of the second scale needle 11 in the front-to-back direction is consistent with the position of the rear side of the pressure sensor 7, and the lower half of the second scale needle 11 is in contact with the scale 8, so the moving second scale needle 11 can point to the scale of the scale 8, and the cutting length of the plastic sheet can be adjusted by adjusting the position of the second scale needle 11 on the scale 8;After the adjustment is completed, the production line is started, and the plastic sheet to be cut can be transported forward by the conveying device, so that the plastic sheet moves from the back to the front on the workbench 1, and the baffle 2 is used to prevent the plastic sheet from being skewed. At this time, the electric telescopic rod 6 is in an extended state. When the front end of the plastic sheet to be cut contacts the pressure sensor 7, the pressure sensor 7 sends a pressure signal to the external controller, and the external controller can send a cutting signal to the cutting knife 12 and the cylinder 15. When the cutting knife 12 and the cylinder 15 receive the cutting signal, the cylinder 15 takes priority to act, and the cylinder 15 extends downward, and the pressure plate 16 is driven downward by the cylinder 15. The sheet can be pressed by the pressure plate 16, and the cutting knife 12 then acts, and the blade of the cutting knife 12 extends downward, so that the plastic sheet can be cut, and the cutting accuracy is ensured. After the cutting is completed, the blade of the cutting knife 12 is quickly retracted, and then the piston of the cylinder 15 retracts and drives the pressure plate 16 to reset , the electric telescopic rod 6 retracts and drives the two pressure sensors 7 to move left and right respectively, so that the rear plastic sheet to be cut can continue to move forward and push the cut plastic sheet forward. When half of the cut plastic sheet is pushed out of the workbench 1, it will automatically fall down, and the collection device can collect the cut plastic sheet. At this time, there is no sheet blocking the front half of the workbench 1. The external controller can control the electric telescopic rod 6 to extend so that the pressure sensor 7 is located in front of the moving sheet to be cut. When the front end of the sheet to be cut contacts the pressure sensor 7 again, the external controller can control the electric telescopic rod 6, the pressure sensor 7, the cutting knife 12 and the cylinder 15 to repeat the above steps; the device can adjust the position of the electric telescopic rod 6 and the pressure sensor 7 as needed, that is, adjust the cutting length of the plastic sheet, and drive the pressing plate 16 to press the material through the cylinder 15, so that the plastic sheet is stationary, and the cutting accuracy of the sheet is ensured. ;
[0026] The contents not described in detail in this specification belong to the prior art known to the professional and technical personnel in this field. The standard parts used in this utility model can be purchased from the market, and the special-shaped parts can be customized according to the description and the drawings. The specific connection methods of each part adopt the conventional means such as bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt the conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here.
[0027] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A pneumatic pressing device for a plastic shearing machine, comprising a workbench (1), a cutting knife (12) and a pressing plate (16), characterized in that: A baffle (2) is fixedly connected to the rear side of the top of the workbench (1); two drive motors (3) are fixedly connected to the front side of the workbench (1); a pair of left-right symmetrical adjustment rods (4) are rotatably connected inside the workbench (1); the rear main shafts of the drive motors (3) are fixedly connected to the adjustment rods (4); a pair of left-right symmetrical transmission blocks (5) are slidably connected inside the workbench (1); the outer sides of the adjustment rods (4) are spirally connected to the transmission blocks (5); the tops of the transmission blocks (5) are fixedly connected to electric telescopic rods (6); the inner rods of the electric telescopic rods (6) are fixedly connected to pressure sensors (7); the workbench ( 1) is fixedly connected with a scale (8) and a first scale needle (9) on both sides, the left and right sides of the workbench (1) are slidably connected with a sliding plate (10), the lower side of the electric telescopic rod (6) is fixedly connected with a sliding plate (10), the opposite outer sides of the two sliding plates (10) are fixedly connected with a second scale needle (11), the top rear side of the workbench (1) is fixedly connected with a cutting knife (12) and a steel beam (13), the top of the steel beam (13) is fixedly connected with two fixed blocks (14), the front sides of the fixed blocks (14) are fixedly connected with a cylinder (15), and the bottom end of the cylinder (15) is fixedly connected with a pressing plate (16).
2. The pneumatic pressing device for plastic shearing machine according to claim 1 is characterized in that: The workbench (1) is composed of a rectangular plate, four rectangular support shafts and two pairs of rectangular connecting blocks; the bottom of the rectangular plate of the workbench (1) is fixedly connected to the four rectangular support shafts; the top of the rectangular plate of the workbench (1) is fixedly connected to the two pairs of rectangular connecting blocks; and the upper side of the rectangular plate of the workbench (1) is provided with two rectangular sliding grooves in the front-rear direction.
3. The pneumatic pressing device for plastic shearing machine according to claim 1 is characterized in that: The main shafts of the driving motors (3) are all horizontally facing backwards, the adjusting rods (4) are all horizontally distributed in the front-to-back direction, the outer sides of the adjusting rods (4) are all provided with threaded protrusions, the inner sides of the transmission blocks (5) are all provided with threaded grooves, the two electric telescopic rods (6) are symmetrical on the left and right, and the electric telescopic rods (6) are all horizontally distributed in the left and right directions.
4. The pneumatic pressing device for plastic shearing machine according to claim 1 is characterized in that: The scale (8) is provided with scales, the position of the first scale needle (9) in the front-to-back direction is consistent with the position of the blade of the cutting knife (12), and the bottom end of the first scale needle (9) is aligned with the zero scale of the scale (8).
5. The pneumatic pressing device for plastic shearing machine according to claim 1 is characterized in that: The two sliding plates (10) are symmetrical, and both sliding plates (10) are "L"-shaped bent plates. The position of the second scale needle (11) in the front-to-back direction is consistent with the position of the rear side of the pressure sensor (7), and the lower half of the second scale needle (11) is in contact with the scale (8).
6. The pneumatic pressing device for plastic shearing machine according to claim 1 is characterized in that: The steel beam (13) is horizontally distributed in the left-right direction, the two cylinders (15) are vertically distributed downward, and the pressing plate (16) is horizontally distributed.