Paper pulp molding linkage production rotary cutting jig

Abstract

The invention relates to the technical field of paper pulp molding processing, in particular to a rotary cutting jig for linkage production of paper pulp molding. Comprising a rotary cutting machine table workbench, a vacuum base is arranged on the rotary cutting machine table workbench, a rotary cutting jig is arranged on the vacuum base, a rotary pressing device is arranged at the side end of the vacuum base, and a jacking device is arranged in the vacuum base; a vacuum adsorption structure is arranged in the rotary cutting jig and used for fixing the paper-plastic products, and the rotary pressing device and the ejecting device are both controlled by a program to be in linkage work with the rotary cutting machine workbench to automatically cut the paper-plastic products. The rotary cutting, material pressing and ejection device has the beneficial effect that the problem that rotary cutting, material pressing and ejection cannot be carried out on paper-plastic products in mass production is solved.

Description

Technical Field

[0001] This invention relates to the field of pulp molding processing technology, and more specifically to a rotary cutting fixture for integrated pulp molding production. Background Technology

[0002] Pulp molding rotary cutting is an important process in paper-plastic packaging products. It's typically used on round and square paper-plastic products. Round products include conical, cylindrical, and elliptical shapes, while square products include rectangular, square, and irregular square shapes. Rotary cutting generally cuts the outer perimeter of the paper-plastic product, separating the excess material from the finished product. Since the excess material and finished product are connected after molding and drying, other processes are needed to separate them. Conventional rotary cutting involves placing the paper-plastic product into a fixture and wrapping it. Unconventional rotary cutting involves fixing the product inside the fixture, with the cutting blade cutting from the inside out. This latter method is less suitable for mass production because material handling is inconvenient, and the rotary cutting machine and fixture lack material pressing and ejection mechanisms. Therefore, it's only suitable for prototyping and testing. Similar to a vortex-type sawing fixture with patent number CN201810445443.X, this fixture includes a base plate, a positioning clamp, a first positioning block, a second positioning block, a third positioning block, and a positioning groove. The positioning groove is located in the middle of the base plate. The first, second, and third positioning blocks are located on the base plate surrounding the positioning groove, with the second positioning block positioned between the first and third positioning blocks. The lines connecting the first, second, and third positioning blocks form a triangle. The positioning clamp is mounted on the second positioning block. A positioning plate is provided on the execution end rod of the positioning clamp, and the positioning plate is located above the positioning groove. The positioning blocks provide side and bottom positioning for the stationary disc, ensuring that the casting is not easily detached during sawing and ensuring safety. A laser-guided linear cutting device is added to the sawing machine for convenient operation and to ensure the dimensional accuracy of the sawing thickness. A sawing groove is left at the bottom of the fixture for easy cleaning of iron filings, shortening the sawing time, improving accuracy, and reducing manufacturing costs. However, this device is also unable to perform mass production of rotary cutting, pressing, and ejection of paper and plastic products. Summary of the Invention

[0003] Therefore, the technical problem to be solved by the present invention is to overcome the problem that the prior art cannot mass-produce paper-plastic products through rotary cutting, pressing and ejection.

[0004] Therefore, the technical solution adopted is a pulp molding linkage production rotary cutting fixture of the present invention, including a rotary cutting machine table, a vacuum base set on the rotary cutting machine table, a rotary cutting fixture set on the vacuum base, a rotating pressing device set on the side of the vacuum base, and a material ejector set inside the vacuum base; the rotary cutting fixture is provided with a vacuum adsorption structure for fixing paper-plastic products, and the rotating pressing device and the material ejector are both controlled by a program to work in linkage with the rotary cutting machine table to automatically cut the paper-plastic products.

[0005] Preferably, the rotary pressing device includes a rotary cylinder and a square pressing plate. The square pressing plate is fixed to the top clamp of the rotary cylinder. The rotary cylinder drives the square pressing plate to rise and then rotates. After the rotation is completed, it slides down to press the paper-plastic product.

[0006] Preferably, the square pressing plate matches the shape of the paper-plastic product and is used to indirectly press the product in a cyclic manner before rotary cutting.

[0007] Preferably, the ejector device includes an ejector cylinder and a square ejector block. The square ejector block inside the rotary cutting fixture is fixed on the telescopic rod shaft of the ejector cylinder. The rotary cutting fixture is used to eject the rotary-cut waste material upwards, so that production personnel can remove the waste material in a timely manner.

[0008] Preferably, the vacuum base is used to connect a vacuum pipe to achieve the functions of suction and blowing.

[0009] Preferably, the rotary cutting machine table is driven by a motor to rotate the rotary cutting blade rod, and the lower end of the rotary cutting blade rod is fixed with a rotary cutting blade.

[0010] Preferably, when the paper-plastic product is placed into the rotary cutting fixture, the sensor of the vacuum base activates the adsorption function, the rotary cylinder rises and rotates to the left and right, then slides down to press the paper-plastic product, and the rotary cutting blade begins to cut; after the rotary cutting is completed, the rotary cylinder returns to the origin, the vacuum adsorption function is turned off, and the ejector device is activated to eject the waste and the finished paper-plastic product.

[0011] Preferably, the rotary cutting fixture has a vacuum hole inside, and a vacuum bottom hole is connected to the center of the bottom of the vacuum hole. The diameter of the vacuum bottom hole is larger than that of the vacuum hole, and the vacuum hole and the vacuum bottom hole form an upper and lower stepped hole structure to increase the vacuum adsorption area and adsorption force.

[0012] A clearance space is provided between the rotary cutting fixture and the top material device.

[0013] The rotary cutting fixture is suitable for the simultaneous production of multiple pulp molded products. The rotary pressing device can simultaneously rotate left and right to perform synchronous rotary cutting of symmetrical products.

[0014] Other features and advantages of the invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention may be realized and obtained by means of the structures particularly pointed out in this application.

[0015] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0016] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings: Figure 1 This is an exploded structural diagram of the rotary cutting fixture of the present invention; Figure 2 This is a schematic diagram of the structure of the paper-plastic product rotary cutting integral use of the present invention; Figure 3 This is a schematic diagram of the overall structure of the rotary cutting fixture of the present invention; Figure 4 This is a schematic diagram of the overall half-section structure of the rotary cutting fixture of the present invention; Figure 5 This is a schematic diagram of the structure of the pulp molding semi-finished product before rotary cutting according to the present invention; Figure 6 This is a schematic diagram of the structure of the rotary-cut pulp molding semi-finished product of the present invention; Figure 7 This is a schematic diagram of the structure of the paper-plastic finished product after rotary cutting according to the present invention; Figure 8 This is a schematic diagram of the unfolded structure of the rotary cutting fixture of the present invention; Figure 9 This is a schematic diagram of the rotary cutting fixture ejection device of the present invention.

[0017] In the diagram: 20. Square pressure plate; 21. Square top block; 22. Rotary cutting fixture; 23. Ejection cylinder; 24. Vacuum base; 25. Rotary cutting machine worktable; 26. Cylinder ejector rod; 27. Rotary cylinder top chuck; 28. Rotary cylinder; 29. ​​Pulp molding semi-finished product before rotary cutting; 30. Rotary cutting blade; 31. Waste material after rotary cutting; 32. Rotary cutting blade; 33. Ejection device in non-ejection state; 34. Suction step hole of rotary cutting fixture; 35. Rotary pressure device in pressure state; 36. Ejection device in ejection state; 37. Detailed Implementation

[0018] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0019] In the description of this application, it should be understood that the terms "middle," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0020] Furthermore, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0021] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0022] Example 1: As Figure 1 and Figure 2 As shown, a rotary cutting fixture for pulp molding production includes a rotary cutting machine worktable 25, a vacuum base 24 on the worktable 25, a rotary cutting fixture 22 on the vacuum base 24, a rotating pressing device on the side of the vacuum base 24, and a material ejector device inside the vacuum base 24. The rotary cutting fixture 22 has a vacuum adsorption structure for fixing paper-plastic products. The rotating pressing device and the material ejector device are both controlled by a program and work in conjunction with the rotary cutting machine worktable 25 to automatically rotary cut the paper-plastic products.

[0023] The working principle and beneficial effects of this embodiment are as follows: In the pulp molding packaging industry, when rotary cutting paper and plastic products, conventional single rotary cutting fixtures are basically used. That is, a single rotary cutting fixture is directly installed on the worktable of the rotary cutting equipment without any additional devices or extra functions. With the diversification of paper and plastic packaging products, a single rotary cutting fixture can no longer meet the requirements of rotary cutting technology. It is necessary to innovate and design existing rotary cutting fixtures to meet their rotary cutting technology requirements. The rotary cutting fixture 22 is equipped with a rotary cylinder 28 on its side, which is used to fix the paper-plastic product during production. Its function is to place the paper-plastic product to be cut inside the rotary cutting fixture 22. At this time, the entire rotary cutting device is in the open state. When the rotary cutting fixture 22 senses the paper-plastic product, it begins to vacuum-adsorb the paper-plastic product. When the paper-plastic product is adsorbed, the rotary cylinder 28 rises 40mm and then begins to rotate 90° to the left and right at the same time. Since there are two holes on the left and right, it cannot rotate in one direction. The rotary cylinder 28 then slides down to press the paper-plastic product to be cut. A square pressure plate 20 is installed on the rotary cylinder 28. After the rotary pressure device presses the paper-plastic product, it is rotary-cut by using a cutting device.

[0024] The pulp molding integrated production process of the rotary cutting fixture involves the production staff placing the paper-plastic product to be rotary cut into the rotary cutting fixture 22. When the vacuum sensor detects the paper-plastic product, the adsorption function is activated. Then, the rotary cylinder 28 rises 40mm, rotates 90 degrees to the left and right, and then slides down again. A square pressing fixture 20 is installed on the rotary cylinder 28 to hold the paper-plastic product in place. After the paper-plastic product is held in place, the cutting device on the side of the rotary cutting machine's worktable 25 is controlled to drive the rotary cutting blade 33 to begin cutting the paper-plastic product along the trajectory. After the plastic product is rotary-cut, the rotary cylinder 28 rises 40mm and then rotates 90° to the left and right respectively, finally returning to the origin. After the rotating device returns to the origin, the vacuum adsorption function is turned off. Then the material ejection device in the vacuum base 24 starts to operate, ejecting the residual material of the rotary-cut paper-plastic product, i.e., the waste material 32, upward. When ejecting the residual material, the rotary-cut finished paper-plastic product 30 is also ejected at the same time, making it convenient for production operators to pick up the material. After taking out the rotary-cut paper-plastic product residual material and finished product, the entire series of linkage actions are completed.

[0025] Example 2: As Figure 1 — Figure 9 As shown, a rotary cutting fixture for pulp molding linkage production is disclosed. The rotary pressing device includes a rotary cylinder 28 and a square pressing plate 20. The square pressing plate 20 is fixed on the top chuck 27 of the rotary cylinder 28. The rotary cylinder 28 drives the square pressing plate 20 to rise and then rotate. After the rotation is completed, it slides down to press the paper-plastic product.

[0026] The working principle and beneficial effects of this embodiment are as follows: A rotary cutting fixture 22 is equipped with a rotary cylinder 28 on its side, used to fix the paper-plastic product during production. Its function is to place the paper-plastic product to be cut inside the rotary cutting fixture 22. At this time, the entire rotary cutting device is in the open state. When the rotary cutting fixture 22 senses the paper-plastic product, it begins to vacuum-adsorb the paper-plastic product. After adsorbing the paper-plastic product, the rotary cylinder 28 rises 40mm and then begins to rotate 90° simultaneously to the left and right. Because there are two holes on the left and right, it cannot rotate in one direction. The rotary cylinder 28 then slides down to press down the paper-plastic product to be cut. A square pressure plate 20 is installed on the rotary cylinder 28. After the rotary pressure device presses down the paper-plastic product, the rotary cutting equipment begins to cut the paper-plastic product.

[0027] Example 3: As Figure 1 — Figure 9 As shown, a rotary cutting fixture for pulp molding linkage production is disclosed, wherein the square pressure plate 20 is matched with the shape of the paper-plastic product and is used to indirectly and cyclically press the product before rotary cutting.

[0028] The working principle and beneficial effects of this embodiment are as follows: by controlling the square pressing plate 20 through the rotary cylinder 28, the paper-plastic product that needs to be rotary cut is pressed and stabilized for easy rotary cutting.

[0029] Example 4: Figure 1 — Figure 9 As shown, a pulp molding linkage production rotary cutting fixture is provided. The ejector device includes an ejector cylinder 23 and a square ejector block 21. The square ejector block 21 inside the rotary cutting fixture 22 is fixed on the telescopic rod shaft of the ejector cylinder 23. The rotary cutting fixture 22 is used to eject the rotary-cut waste material 32 upwards, so that the production personnel can remove the waste material in time.

[0030] The working principle and beneficial effects of this embodiment are as follows: After the rotary cutting product is completed, the waste material of the paper-plastic product is left in the rotary cutting fixture 22. The remaining material cannot be blown out by air, and it is inconvenient for production staff to remove it. After technical evaluation, it was decided to add an ejector device in the rotary cutting fixture 22. However, the space of the fixture is limited. After further technical evaluation, it was decided to install the ejector device mechanism in the vacuum base 24. A square fixture 20 is embedded in the rotary cutting fixture 22, so that the square fixture 20 is connected to the ejector device, which can slide up and down without interfering with the paper-plastic product. After trial molding, this solution is feasible and can meet the production requirements. It is just that the ejector device and the rotary cutting equipment need to be connected in series by the program to achieve linkage production.

[0031] Example 5: Figure 1 — Figure 9 As shown, a rotary cutting fixture for pulp molding linkage production is described, wherein the vacuum base 24 is used to connect a vacuum pipe to realize the functions of air suction and air blowing.

[0032] The working principle and beneficial effects of this embodiment are as follows: When the rotary cutting fixture 22 senses the paper-plastic product, it begins to vacuum-adsorb the paper-plastic product. When the paper-plastic product is adsorbed, the rotary cylinder 28 rises 40mm and then begins to rotate 90° to the left and right at the same time. Since there are two holes on the left and right, it cannot rotate in one direction. The blowing function corresponds to blowing the remaining impurities away from the vacuum base 24.

[0033] Example 6: As Figure 1 — Figure 9 As shown, a pulp molding linkage production rotary cutting fixture is provided. The rotary cutting machine worktable 25 is driven by a motor to control the rotation of the rotary cutting blade 31, and the lower end of the rotary cutting blade 31 is fixed with a rotary cutting blade 33.

[0034] The working principle and beneficial effects of this embodiment are as follows: The square clamping fixture 20 is connected to the top chuck 27 of the rotary cylinder. The top chuck 27 of the rotary cylinder is connected and fixed together with the rotary cylinder 28. The rotary cylinder 28 is connected to the vacuum base 24, which in turn is connected and fixed together with the worktable 25 of the rotary cutting machine. The cylinder push rod 26 is connected to the ejection cylinder 23. The ejection device is fixed inside the vacuum base 24. The square top block 21 is connected to the push rod of the rotary cylinder 28. The square top block 21 is installed inside the rotary cutting fixture 22 and can slide up and down. When the ejection device is in the ejection state 37, the residual material and the finished product after rotary cutting are clearly ejected from the rotary cutting fixture for easy handling by production personnel. The specific implementation and verification scheme are as follows: For paper-plastic packaging products that require rotary cutting, the normal procedure is to start from the outside and cut inwards along the circumference of the product. The cutting depth should be greater than the material thickness by 0.05mm, i.e., overcut by 0.05mm. This will separate the finished product from the waste material. After the rotary cutting fixture 22 has finished cutting, the production staff will remove the finished product and the waste material at the same time. The waste material will be placed in the waste box, and the finished product will be placed on the production line.

[0035] Example 7: Figure 1 — Figure 9 As shown, a pulp molding linkage production rotary cutting fixture is used. When the paper-plastic product is placed into the rotary cutting fixture 22, the sensor of the vacuum base 24 activates the adsorption function. The rotary cylinder 28 rises and rotates to the left and right, then slides down to press the paper-plastic product. Then, the cutting device at the side of the rotary cutting machine table 25 drives the rotary cutting blade 33 to start rotary cutting, moving along the specified trajectory to achieve rotary cutting along the trajectory. After the rotary cutting is completed, the rotary cylinder 28 returns to the origin, the vacuum adsorption function is turned off, and the ejector device is activated to eject the waste material and the finished paper-plastic product.

[0036] Example 8: As Figure 1 — Figure 9As shown, a rotary cutting fixture for pulp molding linkage production is provided. The rotary cutting fixture 22 is provided with a vacuum hole. A vacuum bottom hole is connected to the center of the bottom of the vacuum hole. The diameter of the vacuum bottom hole is larger than that of the vacuum hole. The vacuum hole and the vacuum bottom hole form an upper and lower stepped hole structure to increase the vacuum adsorption area and adsorption force.

[0037] Example 9: As Figure 1 — Figure 9 As shown, a rotary cutting fixture for pulp molding production is provided, wherein an avoidance space is provided between the rotary cutting fixture 22 and the top material device to prevent unnecessary interference.

[0038] Example 10: As Figure 1 — Figure 9 As shown, a rotary cutting fixture for pulp molding linkage production is disclosed. The rotary cutting fixture 22 is suitable for the simultaneous production of multiple pulp molded products. The rotating pressing device can simultaneously rotate left and right to perform synchronous rotary cutting of symmetrically structured products. Quantitative processing can be achieved through automatic program control.

[0039] The above description is not intended to limit the present invention, nor is the present invention limited to the examples given above. Any changes, modifications, additions, or substitutions made by those skilled in the art within the scope of the present invention are also within the protection scope of the present invention.

Claims

1. A rotary cutting fixture for integrated pulp molding production, characterized in that: The device includes a rotary cutting machine worktable (25), a vacuum base (24) on the rotary cutting machine worktable (25), a rotary cutting fixture (22) on the vacuum base (24), a rotary pressing device on the side of the vacuum base (24), and a material ejector inside the vacuum base (24). The rotary cutting fixture (22) has a vacuum adsorption structure for fixing paper and plastic products. The rotary pressing device and the material ejector are both controlled by a program and work in conjunction with the rotary cutting machine worktable (25) to automatically cut the paper and plastic products.

2. The pulp molding and rotary cutting fixture according to claim 1, characterized in that, The rotary pressing device includes a rotary cylinder (28) and a square pressing plate (20). The square pressing plate (20) is fixed on the top chuck (27) of the rotary cylinder (28). The rotary cylinder (28) drives the square pressing plate (20) to rise and rotate. After the rotation is completed, it slides down to press the paper-plastic product.

3. The pulp molding and rotary cutting fixture according to claim 2, characterized in that, The square pressing plate (20) is matched with the shape of the paper-plastic product and is used to indirectly press the product in a cyclic manner before rotary cutting.

4. The pulp molding and rotary cutting fixture according to claim 1, characterized in that: The ejector device includes an ejector cylinder (23) and a square ejector block (21). The square ejector block (21) inside the rotary cutting fixture (22) is fixed on the telescopic rod shaft of the ejector cylinder (23). The rotary cutting fixture (22) is used to eject the rotary-cut waste material (32) upwards, so that the waste material can be removed in time.

5. The pulp molding integrated production rotary cutting fixture according to claim 1, characterized in that: The vacuum base (24) is used to connect to the vacuum pipe to realize the functions of air intake and air blowing.

6. The pulp molding integrated production rotary cutting fixture according to claim 2, characterized in that: The addition of the veneer cutting bar (31) is controlled by lifting within the worktable (25) of the veneer cutting machine. The veneer cutting bar (31) is rotated by motor drive. The lower end of the veneer cutting bar (31) is fixed with a veneer cutting blade (33).

7. A pulp molding integrated production rotary cutting fixture according to claim 6, characterized in that: When the paper-plastic product is placed into the rotary cutting fixture (22), the sensor of the vacuum base (24) activates the adsorption function, the rotary cylinder (28) rises and rotates to the left and right, then slides down to press the paper-plastic product, and the rotary cutting blade (33) begins to cut; after the rotary cutting is completed, the rotary cylinder (28) returns to the origin, the vacuum adsorption function is turned off, and the ejector device is activated to eject the waste and the finished paper-plastic product.

8. The pulp molding integrated production rotary cutting fixture according to claim 1, characterized in that: The rotary cutting fixture (22) is provided with a vacuum hole, and a vacuum bottom hole is connected to the center of the bottom of the vacuum hole. The diameter of the vacuum bottom hole is larger than that of the vacuum hole. The vacuum hole and the vacuum bottom hole form an upper and lower stepped hole structure to increase the vacuum adsorption area and adsorption force.

9. A pulp molding integrated production rotary cutting fixture according to claim 4, characterized in that: A clearance space is provided between the rotary cutting fixture (22) and the top material device.

10. A pulp molding integrated production rotary cutting fixture according to claim 7, characterized in that: The rotary cutting fixture (22) is suitable for the simultaneous production of multiple pulp molded products. The rotary pressing device can simultaneously rotate left and right to perform synchronous rotary cutting of symmetrical structure products.

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