A method and equipment for vacuum adsorption symmetric punching and creasing of pulp molding products

Abstract

The present invention provides a method and equipment for vacuum adsorption symmetric punching and wire pressing of pulp molding products, which relates to the technical field of pulp molding. The method includes the following steps: First, place the semi-finished product on the positioning plate so that the semi-finished product covers the outside of the mold; Control the start switch to turn on, start the vacuum device, after vacuum adsorbing the semi-finished product, the pressing cylinder moves downward, the pressing block fixes the semi-finished product, and then the stamping cylinder pushes the stamping punch, and the stamping punch simultaneously performs punching and wire pressing operations on the semi-finished product through the stamping guide block; After the punching and wire pressing operations are completed, the pressing cylinder moves upward, the vacuum device is turned off, and the product is taken out from the positioning plate. The present invention places the product on the positioning plate, and the stamping device can simultaneously perform punching and wire pressing operations on the product. After completion, the product is taken out, solving the problem that the prior art cannot simultaneously perform punching and wire pressing operations on molded products, having the advantages of short time, high efficiency, good stamping quality, reducing labor costs, and improving production efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of pulp molding, and particularly relates to a method and equipment for vacuum adsorption symmetric punching and creasing of pulp molding products. Background Art

[0002] The wet pressing process of pulp molding is mainly used for manufacturing food tableware and high-precision fine industrial packaging products. The pulp slurry is first filtered and formed in a suction filtration forming device to form a wet paper mold of the product. After the wet paper mold is formed, it directly enters a hot pressing and drying and shaping mold for hot pressing, drying, and shaping. The products obtained after hot pressing, drying, and shaping all have uneven edges or lint. The outer shape of the above-mentioned pulp or plant fiber molded products still requires further punching and creasing operations. However, the prior art cannot perform punching and creasing operations on the molded products simultaneously, which greatly affects the production efficiency. Summary of the Invention

[0003] The present invention provides a method and equipment for vacuum adsorption symmetric punching and creasing of pulp molding products to solve the technical problem that the prior art cannot perform punching and creasing operations on molded products simultaneously, which greatly affects the production efficiency.

[0004] To solve the above technical problems, the present invention is realized through the following technical solutions, including the following steps:

[0005] S1. First, place the semi-finished product on the positioning plate so that the semi-finished product covers the outside of the mold.

[0006] S2. Control the start switch to turn on, the vacuum device starts, after vacuum-adsorbing the semi-finished product, the pressing cylinder moves downward, the pressing block fixes the semi-finished product, and then the stamping cylinder pushes the stamping punch to start moving towards the positioning plate. The stamping punch simultaneously performs punching and creasing operations on the semi-finished product through the stamping guide block.

[0007] S3. After the punching and creasing operations are completed, the pressing cylinder moves upward, the vacuum device is turned off, and then the product is taken out from the positioning plate.

[0008] Preferably, a device for vacuum adsorption symmetric punching and creasing of pulp molding products, used to implement a method for vacuum adsorption symmetric punching and creasing of pulp molding products, includes: a frame, an operating table is arranged inside the frame, the side surface of the operating table is fixedly connected to the frame, start switches are arranged on the left and right sides of the operating table, a main power switch is arranged below the operating table, the main power switch is fixedly connected to the side surface of the frame, stamping devices are symmetrically arranged on the left and right sides above the operating table, the two stamping devices are arranged opposite to each other, a fixture is arranged between the stamping devices, and the main power switch is electrically connected to the stamping devices, the fixture, and the start switches respectively.

[0009] Preferably, a vacuum device is provided below the workbench. The bottom of the vacuum device is fixedly connected to the frame. An air circuit controller is provided below the main power switch. The air circuit controller is fixedly connected to the right side of the frame. The air circuit controller is communicated with an external generator. The main power switch is electrically connected to the air circuit controller and the vacuum device respectively.

[0010] Preferably, the stamping device includes: guide rails, a stamping cylinder, and a stamping punch.

[0011] Two guide rails are provided. The two guide rails are arranged on the front and back sides of the fixture along the length direction of the workbench. The bottom of the guide rails is fixedly connected to the workbench. A guide block, a fixed block, and a fixing plate are sequentially and fixedly arranged above the guide rails. The bottom of the guide block is slidably connected to the guide rails. A control block is arranged at one end of the guide rails close to the fixture. The control block is fixedly connected to the guide rails.

[0012] A base is arranged at one end of the guide rails away from the fixture. The base is fixedly connected to the workbench. The stamping cylinder is arranged above the base. The stamping cylinder is fixedly connected to the side surface of the base. A push rod is arranged on one side of the output end of the stamping cylinder. One end of the push rod is fixedly connected to the output end of the stamping cylinder. The other end of the push rod penetrates through the base and is fixedly connected to the fixing plate. A wire pressing head is arranged inside the stamping punch. The wire pressing head is fixedly connected to the stamping punch. The stamping punch is arranged on the side of the fixing plate close to the fixture. The stamping punch is detachably connected to the fixing plate. The stamping cylinder is communicated with the air circuit controller through a pneumatic pressure regulating valve.

[0013] Preferably, the fixture includes: a support block. The support block is arranged between the two stamping devices. The bottom of the support block is fixedly connected to the workbench. A vacuum base, a positioning plate, and a mold are sequentially and fixedly arranged on the upper surface of the support block from bottom to top. Pressing grooves are symmetrically arranged on both sides of the mold. A plurality of air suction holes are arranged on the surface of the positioning plate. Stamping guide blocks are arranged on both sides of the positioning plate. The stamping guide blocks are fixedly connected to the positioning plate. The stamping guide blocks are adapted to the stamping punches. The air suction holes are communicated with the vacuum device through an air extraction valve.

[0014] A pressing cylinder is arranged above the positioning plate. The pressing cylinder is fixedly connected to the inner wall of the frame. A pressing block is arranged on one side of the output end of the pressing cylinder. The top of the pressing block is fixedly connected to the output end of the pressing cylinder.

[0015] Preferably, blanking boxes are symmetrically arranged at the bottom of the workbench. The top of the blanking boxes is fixedly connected to the bottom of the workbench. A blanking port is arranged above the blanking boxes. The blanking port communicates the upper and lower sides of the workbench.

[0016] Preferably, a quick-release component is arranged inside the fixing plate. The quick-release component includes: a clamping groove which is arranged inside the fixing plate and is T-shaped; a rotating shaft arranged on one side of the fixing plate, the rotating shaft is rotatably connected with the fixing plate, one end of the rotating shaft extends into the clamping groove and is fixedly connected with a gear, the other end of the rotating shaft is flush with the side surface of the fixing plate; a toothed disc arranged inside the fixing plate, a toothed groove is arranged on the outer side of the toothed disc, the gear is adapted to the toothed groove, one side of the toothed disc is rotatably connected with the inner wall of the clamping groove, a spiral tooth is arranged on the other side of the toothed disc, the spiral tooth is slidably connected with the clamping groove, clamping blocks are symmetrically arranged on the front and rear sides of the spiral tooth, the longitudinal section of the clamping block is U-shaped, the inner side of the U-shape of the clamping block is adapted to the stamping punch, the upper and lower sides of the clamping block are slidably connected with the clamping groove, and a plurality of soft grooves are arranged at equal intervals on the side of the clamping block close to the toothed disc, and the soft grooves are adapted to the spiral tooth.

[0017] Preferably, a plurality of grooves are arranged on the upper and lower sides of the stamping punch, a sliding groove is arranged on the inner side of the clamping block close to the stamping punch, the position of the sliding groove corresponds to that of the groove, a sliding block is arranged inside the sliding groove, the sliding block is slidably connected with the inner wall of the sliding groove, a part of the sliding block extends outside the sliding groove and is adapted to the groove, a spring is arranged inside the sliding groove, one end of the spring is fixedly connected with the inner wall of the sliding groove, and the other end of the spring is fixedly connected with the sliding block.

[0018] Preferably, lubricating components are respectively arranged on the left and right sides of the guiding block. The lubricating component includes: a shell, the outer shape of the shell is adapted to the guiding block, the shell is provided with a positioning hole, the shell is bolted to the guiding block through the positioning hole, an oil cavity is arranged at the top of the shell, a lubricating cavity is arranged on one side of the shell close to the inclined plane of the guide rail, and an oil passage is arranged inside the shell, and the oil passage communicates the oil cavity with the lubricating cavity.

[0019] Preferably, a lead screw is arranged inside the oil cavity, the bottom of the lead screw contacts with the bottom of the oil cavity, the top of the lead screw is outside the shell, the lead screw is rotatably connected with the shell, a sleeve is arranged at the bottom of the lead screw, the outer wall of the lead screw is in threaded connection with the inner wall of the sleeve, anchor blocks are arranged on both sides of the oil cavity, the anchor blocks are fixedly connected with the bottom of the oil cavity, a connecting rod is arranged between the sleeve and the anchor block, a sliding hole is arranged at one end of the connecting rod close to the sleeve, one end of the connecting rod is hinged to the anchor block, a pin is arranged at the sliding hole end of the connecting rod, the outer wall of the pin is slidably connected with the inner wall of the sliding hole, the pin is fixedly connected with the sleeve, a sealing plug is arranged on one side of the connecting rod close to the oil passage, the sealing plug is slidably connected with the inner wall of the oil passage, and the sealing plug is fixedly connected with the connecting rod;

[0020] The lubricating cavity is filled with polyester sponge. Through holes are equidistantly arranged on one side of the housing close to the inclined plane of the guide rail. Ball bearings are arranged between the through holes and the polyester sponge. The outer wall of the ball bearings is slidably connected to the inner wall of the through holes, the polyester sponge, and the outer wall of the guide rail.

[0021] The technical solution of the present invention has the following advantages: By combining a fixture and a stamping device, the present invention realizes the side cutting of circular, cylindrical, and conical products. Before side cutting, the product is firmly sucked above the positioning plate by vacuum, and then the stamping punch is driven by an electric control device and a stamping cylinder to simultaneously perform punching and wire pressing operations on the molded products respectively, solving the problem that in the prior art, only punching or wire pressing operations can be performed on the molded products separately and cannot be performed simultaneously. Moreover, the integrated operation has a short time, high efficiency, good quality, reduces labor costs, and greatly improves production efficiency.

[0022] Other features and advantages of the present invention will be described in the following specification, and, in part, will be obvious from the specification, or will be understood by implementing the present invention. The objectives and other advantages of the present invention can be achieved and obtained by the devices specifically pointed out in the written specification and the accompanying drawings of the specification.

[0023] The following will further describe the technical solution of the present invention in detail through the drawings and embodiments. Description of the Drawings

[0024] The drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention. In the drawings:

[0025] Figure 1 It is a flowchart of the vacuum adsorption symmetric punching and wire pressing method for pulp molded products in the present invention;

[0026] Figure 2 It is an overall schematic diagram of the symmetric punching and wire pressing device in the present invention;

[0027] Figure 3 It is a schematic diagram of the structure on the workbench in the symmetric punching and wire pressing device of the present invention;

[0028] Figure 4 It is a front view of the stamping device and the fixture in the present invention;

[0029] Figure 5 It is a schematic diagram of the structure of the stamping punch and the mold in the present invention;

[0030] Figure 6 It is a top view of the stamping punch in the present invention;

[0031] Figure 7 It is a schematic diagram of the structure of the wire pressing head and the mold in the present invention;

[0032] Figure 8 This is the front view of the internal card slot of the fixed plate in the present invention;

[0033] Figure 9 This is the front view of the fixed plate in the present invention;

[0034] Figure 10 This is the side view of the fixed plate in the present invention;

[0035] Figure 11 This is the top view of the fixed plate in the present invention;

[0036] Figure 12 This is the enlarged view at A in the present invention;

[0037] Figure 13 This is the schematic diagram of the position of the lubrication component in the present invention;

[0038] Figure 14 This is the side view of the housing in the lubrication component of the present invention;

[0039] Figure 15 This is the side view of the lubrication component during lubrication in the present invention;

[0040] Figure 16 This is the front view of the sleeve in the present invention.

[0041] In the figure: 1, frame; 2, workbench; 3, start switch; 4, main power switch; 5, gas path controller; 6, guide rail; 7, stamping cylinder; 8, guide block; 9, fixed plate; 10, control block; 11, base; 12, push rod; 13, stamping punch; 14, positioning plate; 15, support block; 16, vacuum base; 17, stamping guide block; 18, blanking box; 20, card slot; 21, gear disk; 22, spiral tooth; 23, tooth groove; 24, rotating shaft; 25, gear; 26, clamping block; 28, sliding groove; 29, slider; 30, spring; 31, mold; 32, vacuum device; 33, pressing cylinder; 34, pressing block; 35, wire pressing head; 36, wire pressing groove; 40, pneumatic pressure regulating valve; 41, air extraction valve; 42, fixed block; 43, suction hole; 60, lubrication component; 61, housing; 62, positioning hole; 63, oil cavity; 64, lubrication cavity; 65, lead screw; 66, sleeve; 67, anchor block; 68, connecting rod; 69, pin; 70, sealing plug; 71, polyester sponge; 72, ball; 73, oil passage. Detailed implementation manners

[0042] The following is a description of the preferred embodiments of the present invention with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are only for the purpose of illustrating and explaining the present invention, and are not used to limit the present invention.

[0043] In addition, in the present invention, descriptions such as "first", "second", etc. are for descriptive purposes only, and do not particularly refer to the meaning of order or sequence, nor are they used to limit the present invention. They are merely used to distinguish components or operations described with the same technical terms, and should not be construed as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, features defined with "first", "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions and technical features between various embodiments may be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or is unable to be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0044] Embodiment 1:

[0045] The embodiment of the present invention provides a method for vacuum adsorption symmetric punching and creasing of a pulp molding product, as Figure 1-7 shown, including the following steps:

[0046] S1. First, place the semi-finished product on the positioning plate 14 so that the semi-finished product covers the outside of the mold 31;

[0047] S2. Control the start switch 3 to turn on, the vacuum device 32 starts, after vacuum-adsorbing the semi-finished product, the pressing cylinder 33 moves downward, the pressing block 34 fixes the semi-finished product, and then the stamping cylinder 7 pushes the stamping punch 13 to start moving towards the positioning plate 14, and the stamping punch 13 simultaneously performs punching and creasing operations on the semi-finished product through the stamping guide block 17;

[0048] S3. After the punching and creasing operations are completed, the pressing cylinder 33 moves upward, the vacuum device 32 is turned off, and then the product is taken out from the positioning plate 14.

[0049] The working principle and beneficial effects of the above technical solution are as follows:

[0050] The operator places the semi-finished product on the positioning plate 14 and covers it on the surface of the mold 31. At this time, the control start switch is turned on, and the vacuum device 32 is started. The vacuum adsorbs the semi-finished product and firmly fixes the semi-finished product on the positioning plate 14. At the same time, the pressing cylinder 33 pushes the pressing block 34 downward until the pressing block 34 contacts the semi-finished product on the mold 31, so that the pressing block 34 fixes the semi-finished product to prevent the product from moving during punching and wire pressing, resulting in unstable punching and wire pressing. The stamping cylinder 7 pushes the stamping punch 13 to start moving towards the positioning plate 14. The stamping punch 13 simultaneously performs punching and wire pressing operations on conical and special-shaped products through the stamping guide block 17. After the operation is completed, the vacuum adsorption is turned off, and the operator takes out the product. By simultaneously performing two different processes of punching and wire pressing on the semi-finished product through the stamping punch 13, the problem that the prior art cannot simultaneously perform punching and wire pressing operations on molded products is solved, which has the advantages of short time, high efficiency, and good stamping quality, reduces the labor cost for the enterprise, and greatly improves the production efficiency.

[0051] Embodiment 2

[0052] A vacuum adsorption symmetric punching and wire pressing device for pulp molded products is used to implement a vacuum adsorption symmetric punching and wire pressing method for pulp molded products, as Figure 2 、 3 shown, including: a frame 1, a workbench 2 is arranged inside the frame 1, the side surface of the workbench 2 is fixedly connected to the frame 1, start switches 3 are arranged on the left and right sides of the workbench 2, a main power switch 4 is arranged below the workbench 2, the main power switch 4 is fixedly connected to the side surface of the frame 1, stamping devices are symmetrically arranged on the left and right sides above the workbench 2, the two stamping devices are arranged oppositely, a fixture is arranged between the stamping devices, and the main power switch 4 is electrically connected to the stamping devices, the fixture, and the start switches 3 respectively;

[0053] A vacuum device 32 is arranged below the workbench 2, the bottom of the vacuum device 32 is fixedly connected to the frame 1, an air circuit controller 5 is arranged below the main power switch 4, the air circuit controller 5 is fixedly connected to the right side of the frame 1, the air circuit controller 5 is communicated with an external generator, and the main power switch 4 is electrically connected to the air circuit controller 5 and the vacuum device 32 respectively.

[0054] The working principle and beneficial effects of the above technical solution are as follows:

[0055] The fixture and the stamping device are combined on the same device, and the stamping device is driven by an electrical device to perform punching and wire pressing operations on conical and special-shaped products. The punching and wire pressing operations can be carried out simultaneously, solving the problem that the prior art cannot simultaneously perform punching and wire pressing operations on molded products, having the advantages of short time, high efficiency, and good stamping quality, reducing the labor cost for the enterprise, and greatly improving the production efficiency;

[0056] The start switches 3 of the workbench 2 are set to two for two-handed operation, which is safer from the perspective of the operation. The air circuit controller 5 is conducive to controlling the working pressure of the stamping device and ensuring the operation of the equipment.

[0057] Embodiment 3

[0058] On the basis of any one of Embodiments 1-2, as Figure 2-7 shown, the stamping device includes: guide rails 6, stamping cylinders 7, and stamping punches 13;

[0059] Two guide rails 6 are provided, and the two guide rails 6 are arranged on the front and rear sides of the fixture along the length direction of the workbench 2. The bottom of the guide rail 6 is fixedly connected to the workbench 2. A guide block 8, a fixed block 42, and a fixing plate 9 are fixedly arranged in sequence above the guide rail 6. The bottom of the guide block 8 is slidably connected to the guide rail 6. A control block 10 is arranged at one end of the guide rail 6 close to the fixture, and the control block 10 is fixedly connected to the guide rail 6;

[0060] A base 11 is arranged at one end of the guide rail 6 away from the fixture, and the base 11 is fixedly connected to the workbench 2. A stamping cylinder 7 is arranged above the base 11, and the stamping cylinder 7 is fixedly connected to the side surface of the base 11. A push rod 12 is arranged on one side of the output end of the stamping cylinder 7. One end of the push rod 12 is fixedly connected to the output end of the stamping cylinder 7, and the other end of the push rod 12 penetrates through the base 11 and is fixedly connected to the fixing plate 9. A wire pressing head 35 is arranged inside the stamping punch 13, and the wire pressing head 35 is fixedly connected to the stamping punch 13. The stamping punch 13 is arranged on the side of the fixing plate 9 close to the fixture, and the stamping punch 13 is detachably connected to the fixing plate 9. The stamping cylinder 7 is communicated with the air circuit controller 5 through a pneumatic pressure regulating valve 40;

[0061] The fixture includes: a support block 15, which is arranged between the two stamping devices. The bottom of the support block 15 is fixedly connected to the workbench 2. A vacuum base 16, a positioning plate 14, and a mold 31 are fixedly arranged on the upper surface of the support block 15 from bottom to top in sequence. Pressing grooves 36 are symmetrically arranged on both sides of the mold 31. A plurality of air suction holes 43 are arranged on the surface of the positioning plate 14. The stamping guide blocks 17 are arranged on both sides of the positioning plate 14, and the stamping guide blocks 17 are fixedly connected to the positioning plate 14. The stamping guide blocks 17 are adapted to the stamping punches 13. The air suction holes 43 are communicated with the vacuum device 32 through an air extraction valve 41;

[0062] A pressing cylinder 33 is arranged above the positioning plate 14. The pressing cylinder 33 is fixedly connected to the inner wall of the frame 1. A pressing block 34 is arranged on one side of the output end of the pressing cylinder 33. The top of the pressing block 34 is fixedly connected to the output end of the pressing cylinder 33.

[0063] The working principle and beneficial effects of the above technical solution are as follows:

[0064] The contact surface of the positioning plate 14 and the product is designed with suction holes 43 with a diameter of φ2.0 mm for vacuum suction. The depth of the wire pressing groove on the mold 31 is 0.3 mm.

[0065] The operator places the semi-finished product on the positioning plate 14 and covers it on the surface of the mold 31. At this time, start the machine. The suction holes 43 are communicated with the vacuum device 32 through the air extraction valve 41, so that the inside of the positioning plate 14 is in a vacuum low-pressure state, and the semi-finished product is vacuum adsorbed and firmly fixed on the positioning plate 14. At the same time, the pressing cylinder 33 pushes the pressing block 34 to move downward until the pressing block 34 contacts the semi-finished product on the mold 31, so that the pressing block 34 fixes the semi-finished product and prevents the semi-finished product from moving during punching and wire pressing, resulting in unstable stamping.

[0066] After the semi-finished product is fixed, the punching cylinders 7 on both sides are started. The punching cylinders 7 push the push rods 12 to move towards the positioning plate 14. The push rods 12 push the guiding blocks 8, the fixing blocks 42, and the fixing plates 9 to move along the guide rails 6. At the same time, the push rods 12 push the punching punches 13 to pass through the punching guiding blocks 17, so that the punching punches 13 simultaneously perform punching and wire pressing operations on the semi-finished product on the positioning plate 14. It has the advantages of short punching time, high efficiency, and good punching quality, reduces the labor cost for the enterprise, and greatly improves the production efficiency.

[0067] The setting of the control block 10 controls the moving stroke of the push rod 12 to avoid damaging the punching punch 13 due to exceeding the stroke.

[0068] The setting of the pneumatic pressure regulating valve 40 is beneficial to adjusting the moving speed of the punching cylinder 7 pushing the push rod 12 and ensuring the speed and quality of the punching punch 13.

[0069] Embodiment 4

[0070] On the basis of any one of Embodiments 1-3, as Figure 2-7 shown, blanking boxes 18 are symmetrically arranged at the bottom of the workbench 2. The tops of the blanking boxes 18 are fixedly connected to the bottom of the workbench 2. A blanking port is arranged above the blanking boxes 18, and the blanking port communicates with the upper and lower sides of the workbench 2.

[0071] The working principle and beneficial effects of the above technical solution are as follows:

[0072] The waste material generated after punching and creasing falls into the blanking box 18 through the blanking port, facilitating the cleaning of the waste material and preventing the waste material from falling into the components on the operating table 2 and affecting the production efficiency.

[0073] Embodiment 5

[0074] Based on any one of Embodiments 1-4, as Figure 8-12 shown, a quick-release component is arranged inside the fixing plate 9. The quick-release component includes: a clamping groove 20, which is arranged inside the fixing plate 9. The clamping groove 20 is T-shaped. A rotating shaft 24 is arranged on one side of the fixing plate 9. The rotating shaft 24 is rotatably connected to the fixing plate 9. One end of the rotating shaft 24 extends into the clamping groove 20 and is fixedly connected to a gear 25. The other end of the rotating shaft 24 is flush with the side surface of the fixing plate 9. A toothed disc 21 is arranged inside the fixing plate 9. Tooth grooves 23 are arranged on the outer side of the toothed disc 21. The gear 25 is adapted to the tooth grooves 23. One side of the toothed disc 21 is rotatably connected to the inner wall of the clamping groove 20. A spiral tooth 22 is arranged on the other side of the toothed disc 21. The spiral tooth 22 is slidably connected to the clamping groove 20. Clamping blocks 26 are symmetrically arranged on the front and rear sides of the spiral tooth 22. The longitudinal section of the clamping block 26 is U-shaped. The inner U-shaped side of the clamping block 26 is adapted to the punching punch 13. The upper and lower sides of the clamping block 26 are slidably connected to the clamping groove 20. A plurality of soft grooves are arranged at equal intervals on the side of the clamping block 26 close to the toothed disc 21. The soft grooves are adapted to the spiral tooth 22;

[0075] A plurality of grooves are arranged on the upper and lower sides of the punching punch 13. A sliding groove 28 is arranged on the inner side of the clamping block 26 close to the punching punch 13. The position of the sliding groove 28 corresponds to that of the groove. A sliding block 29 is arranged inside the sliding groove 28. The sliding block 29 is slidably connected to the inner wall of the sliding groove 28. A part of the sliding block 29 extends outside the sliding groove 28 and is adapted to the groove. A spring 30 is arranged inside the sliding groove 28. One end of the spring 30 is fixedly connected to the inner wall of the sliding groove 28. The other end of the spring 30 is fixedly connected to the sliding block 29.

[0076] The working principle and beneficial effects of the above technical solution are as follows:

[0077] When the punching punch 13 is severely worn and needs to be replaced, while rotating the rotating shaft 24, the gear 25 drives the toothed disc 21 to rotate. The spiral tooth 22 on the toothed disc 21 rotates outward. The clamping blocks 26 on the front and rear sides move outward along the rotation of the spiral tooth 22 respectively. The inner U-shaped wall of the clamping block 26 no longer contacts the punching punch 13. The sliding block 29 moves into the sliding groove 28, and the spring 30 contracts. The punching punch 13 moves outward along the direction of the clamping groove 20, realizing the disassembly of the punching punch 13, and the sliding block 29 and the spring 30 return to their original states;

[0078] The left end of the new stamping punch 13 moves inward along the direction of the slot 20 of the stamping punch 13. When the stamping punch 13 contacts the slider 29, the slider 29 moves into the inside of the chute 28, and the spring 30 contracts. When the stamping punch 13 stops moving, that is, when the left end of the stamping punch 13 contacts the inner wall of the slot 20, rotate the rotating shaft 24 in the reverse direction. The gear 25 drives the toothed disc 21 to rotate in the reverse direction. The spiral teeth 22 on the toothed disc 21 rotate inward. The clamping blocks 26 on the front and rear sides move inward along the rotation of the spiral teeth 22 respectively. The U-shaped inner wall of the clamping block 26 contacts the stamping punch 13, realizing the fixation of the stamping punch 13. At the same time, the spring 30 restores its deformation, and the slider 29 moves towards the stamping punch 13. The slider 29 fits with the groove on the stamping punch 13, realizing the secondary fixation of the stamping punch 13, ensuring the stability of the stamping punch 13 during punching and wire pressing;

[0079] The severely worn stamping punch 13 is replaced in time through the quick-release component, ensuring the quality of punching and wire pressing, improving the speed of punching and wire pressing, and improving the production efficiency.

[0080] Embodiment 6

[0081] On the basis of any one of Embodiments 1-5, as Figure 13-16 shown, lubricating components 60 are respectively arranged on the left and right sides of the guiding block 8. The lubricating component 60 includes: a housing 61, the outer shape of the housing 61 is adapted to the guiding block 8, the housing 61 is provided with a positioning hole 62, the housing 61 is bolted to the guiding block 8 through the positioning hole 62, an oil cavity 63 is arranged at the top of the housing 61, a lubricating cavity 64 is arranged on one side of the housing 61 close to the inclined plane of the guide rail 6, and an oil passage 73 is arranged inside the housing 61. The oil passage 73 communicates the oil cavity 63 with the lubricating cavity 64;

[0082] A lead screw 65 is arranged inside the oil cavity 63. The bottom of the lead screw 65 contacts the bottom of the oil cavity 63. The top of the lead screw 65 is outside the housing 61. The lead screw 65 is rotatably connected to the housing 61. A sleeve 66 is arranged at the bottom of the lead screw 65. The outer wall of the lead screw 65 is threadedly connected to the inner wall of the sleeve 66. Anchor blocks 67 are arranged on both sides of the oil cavity 63. The anchor blocks 67 are fixedly connected to the bottom of the oil cavity 63. A connecting rod 68 is arranged between the sleeve 66 and the anchor block 67. A sliding hole is arranged at one end of the connecting rod 68 close to the sleeve 66. One end of the connecting rod 68 is hinged to the anchor block 67. A pin 69 is arranged at the sliding hole end of the connecting rod 68. The outer wall of the pin 69 is slidably connected to the inner wall of the sliding hole. The pin 69 is fixedly connected to the sleeve 66. A sealing plug 70 is arranged on one side of the connecting rod 68 close to the oil passage 73. The sealing plug 70 is slidably connected to the inner wall of the oil passage 73. The sealing plug 70 is fixedly connected to the connecting rod 68;

[0083] The lubricating cavity 64 is filled with polyester sponge 71. The housing 61 is provided with through holes at equal intervals on the side close to the inclined surface of the guide rail 6. A ball 72 is arranged between the through hole and the polyester sponge 71. The outer wall of the ball 72 is slidably connected to the inner wall of the through hole, the polyester sponge 71, and the outer wall of the guide rail 6.

[0084] The working principle and beneficial effects of the above technical solution are as follows:

[0085] A screw cap is arranged on one side of the top of the housing 61, and a scale line is arranged on the housing 61 close to the screw cap. Before starting the equipment, observe the liquid level height of the lubricating oil through the scale line on the side of the housing 61. When the liquid level is low, open the screw cap on the top of the housing 61 and add lubricating oil to the oil cavity 63 to ensure sufficient lubricating oil during the operation of the equipment;

[0086] The operator rotates the top of the lead screw 65. Since the outer wall of the lead screw 65 is threadedly connected to the inner wall of the sleeve 66, while the lead screw 65 rotates, the sleeve 66 moves upward, and one end of the connecting rod 68 close to the sleeve 66 is lifted. The sealing plug 70 fixed on the connecting rod 68 leaves the oil passage 73, and the lubricating oil enters the interior of the lubricating cavity 64 along the oil passage 73. When the lubricating oil enters the lubricating cavity 64, it is absorbed by the polyester sponge 71, and a lubricating oil film is formed on the surface of the ball 72. After starting the equipment, the guiding block 8 drives the housing 61 to reciprocate along the guide rail 6, and the ball 72 rolls along the inclined surface of the guide rail 6 in the through hole of the housing 61. A lubricating oil film is also formed between the surface of the ball 72 and the inclined surface of the guide rail 6, reducing the friction when the guiding block 8 slides and ensuring the smooth operation of the equipment;

[0087] After the equipment is shut down, the operator rotates the lead screw 65, and the sleeve 66 moves downward. The sealing plug 70 moves into the oil passage 73. When the lead screw 65 cannot be rotated, the sleeve 66 is located at the bottom of the oil cavity 63, and the sealing plug 70 contacts the inner wall of the oil passage 73, that is, the oil cavity 63 is not communicated with the oil passage 73, and the lubricating oil no longer flows into the lubricating cavity 64, avoiding the continuous outflow of the lubricating oil after the equipment stops and causing certain potential safety hazards;

[0088] Lubricating assemblies 60 are arranged on both sides of the guiding block 8, solving the problems of cumbersome and uneven lubricating oil application by the operator and the failure to apply lubricating oil in time due to the negligence of the worker, thus affecting the operation efficiency and even causing more serious consequences, ensuring the normal operation of the equipment. At the same time, the setting of the polyester sponge 71 in the housing 61 plays a role in lubricating the ball 72 and also stores the lubricating oil, avoiding the large amount of outflow of the lubricating oil;

[0089] Through the setting of the lubrication component, an oil film is formed between the guide block 8 and the guide rail 6, reducing the friction when the guide block 8 slides, ensuring the smoothness when the stamping cylinder 7 pushes the stamping punch 13 for punching and wire pressing operations, and improving the production efficiency.

[0090] Embodiment 7

[0091] Based on any one of Embodiments 1-6, a tachometer is provided on one side inside the stamping punch 13 to detect the relative speed between the stamping punch 13 and the product during punching and wire pressing operations;

[0092] A control panel is provided on the workbench 2, and a controller is provided on the control panel. The controller is electrically connected to the tachometer respectively;

[0093] An indicator light is provided on the control panel, and the indicator light is electrically connected to the controller;

[0094] The controller calculates the wear mass of the stamping punch 13 after the operation based on the detection data of the tachometer, and controls the indicator light to work to prompt the replacement of the stamping punch 13, including the following steps:

[0095] Step 1: Calculate the wear mass ω of the stamping punch 13 through formula (1);

[0096]

[0097] where ω is the wear mass of the stamping punch 13, ρ is the density of the stamping punch 13, K is the wear coefficient of the stamping punch 13, μ is the friction coefficient of the contact surface between the stamping punch 13 and the product, H is the surface hardness of the stamping punch 13, θ is the thrust efficiency of the stamping cylinder 7, p is the air pressure value of the pneumatic pressure regulating valve 40, s is the cross-sectional area of the push rod 12 in the stamping cylinder 7, v is the relative speed between the stamping punch 13 and the product, and t is the total stamping duration of the stamping punch 13;

[0098] Step 2: The controller compares the wear mass ω of the stamping punch 13 after the operation with the set value. When the wear mass ω is greater than the set value, the controller controls the indicator light to light up to prompt the operator to replace the stamping punch 13 in time.

[0099] The working principle and beneficial effects of the above technical solution are as follows:

[0100] When performing blanking and wire pressing operations, the long-term blanking and wire pressing operations of the stamping punch 13 on conical and special-shaped products will cause some wear on the stamping punch 13, resulting in poor quality of blanking and wire pressing. By setting a tachometer and a controller to calculate the wear quality of the stamping punch 13 after the operation, the set value is preset to 0.2. When the wear quality exceeds the set value, the controller controls the indicator light to turn on, prompting the operator to replace the worn stamping punch 13 in time to ensure the quality of blanking and wire pressing of the equipment.

[0101] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalent technologies, the present invention is also intended to include these changes and modifications.

Claims

1. A method for vacuum adsorption symmetric punching and creasing of pulp molding products, characterized in that, it includes the following steps: S1. First, place the semi-finished product on the positioning plate (14) so that the semi-finished product covers the outside of the mold (31); S2. Control the start switch (3) to turn on, start the vacuum device (32), after vacuum-adsorbing the semi-finished product, the pressing cylinder (33) moves downward, the pressing block (34) fixes the semi-finished product, and then the stamping cylinder (7) pushes the stamping punch (13) to start moving towards the positioning plate (14), and the stamping punch (13) performs simultaneous punching and creasing operations on the semi-finished product through the stamping guide block (17); S3. After the punching and creasing operations are completed, the pressing cylinder (33) moves upward, the vacuum device (32) is turned off, and then the product is taken out from the positioning plate (14); A device for vacuum adsorption symmetric punching and creasing of pulp molding products, used to implement a method for vacuum adsorption symmetric punching and creasing of pulp molding products, includes: A frame (1), with an operating table (2) arranged inside the frame (1), the side of the operating table (2) is fixedly connected to the frame (1), start switches (3) are arranged on the left and right sides of the operating table (2), a main power switch (4) is arranged below the operating table (2), the main power switch (4) is fixedly connected to the side of the frame (1), stamping devices are symmetrically arranged on the left and right sides above the operating table (2), the two stamping devices are arranged opposite to each other, a fixture is arranged between the stamping devices, and the main power switch (4) is electrically connected to the stamping devices, the fixture, and the start switch (3) respectively; The vacuum device (32) is arranged below the operating table (2), the bottom of the vacuum device (32) is fixedly connected to the frame (1), an air circuit controller (5) is arranged below the main power switch (4), the air circuit controller (5) is fixedly connected to the right side of the frame (1), the air circuit controller (5) is communicated with an external generator, and the main power switch (4) is electrically connected to the air circuit controller (5) and the vacuum device (32) respectively; The stamping device includes: a guide rail (6), a stamping cylinder (7), and a stamping punch (13); Two guide rails (6) are arranged, and the two guide rails (6) are arranged on the front and rear sides of the fixture along the length direction of the operating table (2), the bottom of the guide rail (6) is fixedly connected to the operating table (2), a guide block (8), a fixed block (42), and a fixing plate (9) are fixedly arranged above the guide rail (6) in sequence, the bottom of the guide block (8) is slidably connected to the guide rail (6), a control block (10) is arranged at one end of the guide rail (6) close to the fixture, and the control block (10) is fixedly connected to the guide rail (6); A base (11) is provided at one end of the guide rail (6) away from the fixture, and the base (11) is fixedly connected to the workbench (2). Above the base (11), a stamping cylinder (7) is provided, and the stamping cylinder (7) is fixedly connected to the side surface of the base (11). One side of the output end of the stamping cylinder (7) is provided with a push rod (12). One end of the push rod (12) is fixedly connected to the output end of the stamping cylinder (7), and the other end of the push rod (12) penetrates through the base (11) and is fixedly connected to the fixing plate (9). A wire pressing head (35) is arranged inside the stamping punch (13), and the wire pressing head (35) is fixedly connected to the stamping punch (13). The stamping punch (13) is arranged on the side of the fixing plate (9) close to the fixture, and the stamping punch (13) is detachably connected to the fixing plate (9). The stamping cylinder (7) is communicated with the air path controller (5) through a pneumatic regulating valve (40); The fixture includes: a support block (15), which is arranged between the two stamping devices. The bottom of the support block (15) is fixedly connected to the workbench (2). On the upper surface of the support block (15), a vacuum base (16), a positioning plate (14), and a mold (31) are fixedly arranged in sequence from bottom to top. Pressure wire grooves (36) are symmetrically arranged on both sides of the mold (31). A plurality of air suction holes (43) are arranged on the surface of the positioning plate (14). The stamping guide blocks (17) are arranged on both sides of the positioning plate (14), and the stamping guide blocks (17) are fixedly connected to the positioning plate (14). The stamping guide blocks (17) are adapted to the stamping punch (13). The air suction holes (43) are communicated with the vacuum device (32) through an air extraction valve (41); A pressing cylinder (33) is arranged above the positioning plate (14), and the pressing cylinder (33) is fixedly connected to the inner wall of the frame (1). One side of the output end of the pressing cylinder (33) is provided with a pressing block (34), and the top of the pressing block (34) is fixedly connected to the output end of the pressing cylinder (33).

2. A method for vacuum adsorption symmetric punching and wire pressing of a pulp molding product according to claim 1, characterized in that, Falling material boxes (18) are symmetrically arranged at the bottom of the workbench (2), and the tops of the falling material boxes (18) are fixedly connected to the bottom of the workbench (2). A falling material port is arranged above the falling material box (18), and the falling material port communicates the upper and lower sides of the workbench (2).

3. A method for vacuum adsorption symmetric punching and wire pressing of a pulp molding product according to claim 1, characterized in that, A quick-release component is arranged inside the fixed plate (9). The quick-release component includes: a card slot (20) arranged inside the fixed plate (9), the card slot (20) is T-shaped, a rotating shaft (24) is arranged on one side of the fixed plate (9), the rotating shaft (24) is rotatably connected to the fixed plate (9), one end of the rotating shaft (24) extends into the card slot (20) and is fixedly connected to a gear (25), the other end of the rotating shaft (24) is flush with the side surface of the fixed plate (9), a toothed disc (21) is arranged inside the fixed plate (9), a tooth groove (23) is arranged on the outer side of the toothed disc (21), the gear (25) is adapted to the tooth groove (23), one side of the toothed disc (21) is rotatably connected to the inner wall of the card slot (20), a spiral tooth (22) is arranged on the other side of the toothed disc (21), the spiral tooth (22) is slidably connected to the card slot (20), clamping blocks (26) are symmetrically arranged on the front and rear sides of the spiral tooth (22), the longitudinal section of the clamping block (26) is U-shaped, the inner side of the U-shape of the clamping block (26) is adapted to the stamping punch (13), the upper and lower sides of the clamping block (26) are slidably connected to the card slot (20), and a plurality of soft grooves are arranged at equal intervals on one side of the clamping block (26) close to the toothed disc (21), and the soft grooves are adapted to the spiral tooth (22).

4. A method for vacuum adsorption symmetric punching, pressing and scoring of a pulp molding product according to claim 3, characterized in that, a plurality of grooves are arranged on the upper and lower sides of the stamping punch (13), a sliding groove (28) is arranged on the inner side of the clamping block (26) close to the stamping punch (13), the position of the sliding groove (28) corresponds to that of the groove, a sliding block (29) is arranged inside the sliding groove (28), the sliding block (29) is slidably connected to the inner wall of the sliding groove (28), a part of the sliding block (29) extends outside the sliding groove (28) and is adapted to the groove, a spring (30) is arranged inside the sliding groove (28), one end of the spring (30) is fixedly connected to the inner wall of the sliding groove (28), and the other end of the spring (30) is fixedly connected to the sliding block (29).

5. A method for vacuum adsorption symmetric punching, pressing and scoring of a pulp molding product according to claim 1, characterized in that, lubricating components (60) are respectively arranged on the left and right sides of the guiding block (8). The lubricating component (60) includes: a housing (61), the outer shape of the housing (61) is adapted to the guiding block (8), the housing (61) is provided with a positioning hole (62), the housing (61) is bolted to the guiding block (8) through the positioning hole (62), an oil cavity (63) is arranged at the top of the housing (61), a lubricating cavity (64) is arranged on one side of the inclined plane of the housing (61) close to the guide rail (6), and an oil passage (73) is arranged inside the housing (61), and the oil passage (73) communicates the oil cavity (63) with the lubricating cavity (64).

6. A method for vacuum adsorption symmetric punching, pressing and scoring of a pulp molding product according to claim 5, characterized in that, A lead screw (65) is arranged inside the oil cavity (63). The bottom of the lead screw (65) contacts the bottom of the oil cavity (63). The top of the lead screw (65) is outside the housing (61). The lead screw (65) is rotatably connected to the housing (61). A sleeve (66) is arranged at the bottom of the lead screw (65). The outer wall of the lead screw (65) is threadedly connected to the inner wall of the sleeve (66). Anchor blocks (67) are arranged on both sides of the oil cavity (63). The anchor blocks (67) are fixedly connected to the bottom of the oil cavity (63). A connecting rod (68) is arranged between the sleeve (66) and the anchor blocks (67). A sliding hole is arranged at one end of the connecting rod (68) close to the sleeve (66). One end of the connecting rod (68) is hingedly connected to the anchor blocks (67). A pin (69) is arranged at the sliding hole end of the connecting rod (68). The outer wall of the pin (69) is slidably connected to the inner wall of the sliding hole. The pin (69) is fixedly connected to the sleeve (66). A sealing plug (70) is arranged on one side of the connecting rod (68) close to the oil passage (73). The sealing plug (70) is slidably connected to the inner wall of the oil passage (73). The sealing plug (70) is fixedly connected to the connecting rod (68); The lubricating cavity (64) is filled with polyester sponge (71). Through holes are arranged at equal intervals on one side of the housing (61) close to the inclined surface of the guide rail (6). Ball bearings (72) are arranged between the through holes and the polyester sponge (71). The outer wall of the ball bearings (72) is slidably connected to the inner wall of the through holes, the polyester sponge (71), and the outer wall of the guide rail (6).

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