Equipment for processing environment-friendly bamboo leaf tableware and manufacturing method thereof

Abstract

The invention relates to the technical field of tableware processing, and discloses environment-friendly bamboo leaf tableware processing equipment and a manufacturing method thereof.The environment-friendly bamboo leaf tableware processing equipment comprises an operation table, and a mounting table is mounted on the operation table; the traction device is used for pulling the coiled sheet to the lower die for processing; the waste recovery device is used for stacking and collecting the cut sheet waste; the flattening assembly is used for flattening the stacked sheet waste materials; the traction device comprises a sliding frame, the sliding frame is installed on the installation table in a sliding mode, and a connecting rod is hinged to the sliding frame. Through the arrangement of the traction device, the lower clamping block is matched with the upper clamping block to pull the sheet when the upper die moves downwards each time, the lower die is covered with the next section of sheet, and sheet waste is separated from the lower die, so that the automatic traction effect is achieved, the operation step of manually laying the sheet is omitted, and the working efficiency is improved; and the safety during operation is also improved.

Description

Technical Field

[0001] The present invention relates to the technical field of tableware processing, and in particular to equipment for processing environment-friendly bamboo leaf tableware and a manufacturing method thereof. Background Art

[0002] As a natural material, bamboo leaves have many properties suitable for making tableware. They contain a large amount of chlorophyll and various amino acids that are beneficial to the human body, and have a natural fragrance. When using tableware made of bamboo leaves to hold food, it can emit a natural fragrance. Moreover, bamboo leaf tableware can be naturally degraded. It is a natural, environmentally friendly and practical tableware manufacturing material. When processing bamboo leaf tableware, molding technology is usually used. The processing technology uses bamboo fiber as the base material and is mixed with bio-based high molecular polymers, adhesives, etc. to form an environmentally friendly sheet. The sheet is then molded using a heated mold to form bamboo leaf tableware.

[0003] However, the existing technology has the following problems:

[0004] In the prior art, it is necessary to cut the rolled sheet into multiple sections before molding. During molding, the operator manually places a section of the sheet on the mold. After the molding is completed, the formed bamboo leaf tableware and the sheet waste on its edge are separated. After the formed bamboo leaf tableware is ejected by the ejection mechanism of the mold, the operator is required to remove the sheet waste and then manually place the next section of the sheet. The manual operation is more troublesome and the work efficiency is low. In addition, due to the high temperature of the mold, manually placing the sheet may burn the hands. Summary of the Invention

[0005] The purpose of the present invention is to provide an environmentally friendly bamboo leaf tableware processing equipment and a manufacturing method thereof in order to solve the above problems, in order to overcome the low efficiency of the existing technology in which the workers manually place the sheets during molding and there is a risk of burns, as described below for details.

[0006] To achieve the above objectives, the present invention provides the following technical solutions:

[0007] The present invention provides an environmentally friendly bamboo tableware processing equipment, comprising an operating table, a mounting table installed on the operating table, four sliding columns connected to the mounting table, the tops of the four sliding columns connected to a fixed plate, a hydraulic cylinder provided on the fixed plate, the outer walls of the four sliding columns slidably connected to a pressure plate, the pressure plate is connected to the output end of the hydraulic cylinder, the bottom surface of the pressure plate is connected to an upper mold, the top surface of the mounting table is connected to a lower mold, and further comprising: a traction device for traction of rolled sheet material to the lower mold for processing; a waste recovery device for recycling the sheet material The waste materials are stacked and collected after cutting; a smoothing component is used to smooth the stacked sheet waste; the traction device includes a slide, which is slidably mounted on the mounting table, and a connecting rod is hinged on the slide, and the end of the connecting rod away from the slide is hinged to the pressure plate, and an upper clamping block is fixedly mounted on the slide, and connecting blocks are respectively connected to the two sides of the upper clamping block, and a first slider is slidably connected to the connecting block, and a first sliding shaft is fixedly connected to the first slider, and a lower clamping block is fixedly connected between the two first sliders, and two slot plates are fixedly mounted on the mounting table.

[0008] Preferably, the lower clamping block is located below the upper clamping block, a parallelogram sliding groove is provided on the slot plate, and the two first sliding shafts are slidingly connected to the parallelogram sliding grooves of the two slot plates respectively.

[0009] Preferably, a reel is rotatably mounted on the operating table through a bracket, the reel and the slide are respectively located on both sides of the lower mold, and two tensioning rollers are rotatably mounted on the operating table through the bracket, and the two tensioning rollers are located between the reel and the lower mold.

[0010] Preferably, the waste recycling device includes an installation box and a collection box, the installation box is fixedly installed on the installation table, the collection box is slidably installed in the installation box, and the collection box is located below the movement track of the slide.

[0011] Preferably, the waste recycling device also includes two pry bars, a cross bar, two second sliding shafts, two second sliders, a cutter and a resist bar. The two pry bars are rotatably installed on both sides of the installation box, the cross bar is fixedly connected to the slide, one end of the pry bar is provided with a sliding groove, the other end of the pry bar is located on the movement trajectory of the cross bar, the two second sliders are respectively slid through and connected to both sides of the installation box, the two second sliding shafts are respectively fixedly connected to the two second sliders, the two second sliding shafts are respectively slidably connected to the sliding grooves of the two pry bars, the cutter is fixedly connected between the two second sliders, the resist bar is fixedly connected to the two slot plates, and the resist bar is located on the movement trajectory of the cutter.

[0012] Preferably, the waste recycling device also includes two slides and two grinding blocks, the two slides are slidably connected to the inside of the mounting box, the two grinding blocks are respectively connected to the two slides through multiple springs, and the two grinding blocks are respectively in contact with both sides of the cutter.

[0013] Preferably, the waste recycling device also includes two corrugated bars, two leaf springs and two shifting shafts, the two corrugated bars are respectively fixedly connected to one side of the two slides, the two leaf springs are respectively fixedly connected to the other side of the two slides, the outer walls of the two leaf springs away from the slides are in contact with the inner wall of the mounting box, the two shifting shafts are fixedly connected to the second slider close to the corrugated bars, and the two shifting shafts are respectively in sliding contact with the two corrugated bars.

[0014] Preferably, the smoothing assembly includes a rotating shaft, a connecting seat, an elastic sheet, a connecting frame; a pressure rod and two coil springs, the rotating shaft is rotatably mounted on the slide, the connecting seat is fixedly connected to the outer wall of the rotating shaft, the elastic sheet is fixedly connected to the connecting seat, the connecting frame is fixedly connected to the side wall of the lower clamping block, and the pressure rod is fixedly connected to the end of the connecting frame away from the lower clamping block.

[0015] Preferably, the pressure rod is in sliding contact with the top surface of the connecting seat, and the outer walls at both ends of the rotating shaft are fixedly connected with coil springs, and the ends of the two coil springs away from the rotating shaft are fixedly connected to the slide.

[0016] A method for manufacturing environmentally friendly bamboo leaf tableware comprises the following steps:

[0017] Step 1: Raw material pretreatment: remove impurities from bamboo leaves and wash them to prepare bamboo leaf fiber raw materials;

[0018] Step 2: Mix the ingredients and prepare polylactic acid. Weigh the bamboo fiber raw material and polylactic acid in a mass ratio of seven to three. At the same time, add glycerin as a plasticizer and food-grade beeswax as a waterproofing agent. Add the bamboo fiber raw material, polylactic acid, glycerin and food-grade beeswax in a high-speed blender to fully mix the materials to obtain a mixture.

[0019] Step 3: Sheet preparation: the mixed material is put into a twin-screw extruder. After the mixed material is heated and melted in the extruder, it is extruded into a thin sheet through a flat die. Subsequently, the sheet enters a calender and is rolled into a sheet under the action of calender rollers. After cooling, it is rolled up for use.

[0020] Step 4: Compression molding: The upper and lower molds are preheated, and the sheet is pulled by a traction device so that the sheet covers the lower mold. The sheet is molded after the upper mold moves down to fully form the sheet. After the molding is completed, it is cooled and demoulded to obtain the preliminary bamboo leaf tableware. The waste recycling device automatically cuts and stacks the sheet waste for collection;

[0021] Step 5: Post-processing: Surface treatment of the demoulded bamboo leaf tableware is carried out by spraying a waterproof coating made of a mixture of natural wax and vegetable oil to enhance the waterproof and oil-proof properties of the tableware. Then, cutting equipment is used to cut and trim the tableware to remove excess parts on the edges to ensure the dimensional accuracy of the tableware. The tableware is then disinfected and dried to complete the manufacture of environmentally friendly bamboo leaf tableware.

[0022] The beneficial effects are:

[0023] 1. The equipment for processing environmentally friendly bamboo leaf tableware is provided with a traction device, so that the lower clamping block cooperates with the upper clamping block to pull the sheet each time the upper mold moves downward, so that the next section of the sheet is covered on the lower mold, and the sheet waste is separated from the lower mold, achieving the effect of automatic traction, eliminating the operation steps of manually laying the sheet, improving work efficiency, and also improving safety during operation; through the setting of two tensioning rollers, the two tensioning rollers tension the sheet when the sheet is pulled to avoid sheet wrinkles.

[0024] 2. The equipment for processing environmentally friendly bamboo leaf tableware is provided with a waste recycling device. Whenever the lower clamping block and the upper clamping block pull the sheet waste to the right, the cutter can automatically move up and cut the sheet waste by cooperating with the resist bar, so that the cut sheet waste is spread flat in the collection box. After being pulled and cut, the sheet waste can be stacked in the collection box, making the sheet waste in the collection box more orderly and improving the utilization rate of the storage space; through the provision of two grinding blocks, the two grinding blocks can move back and forth horizontally to grind both sides of the cutter while the cutter moves up and down, thereby maintaining the sharpness of the cutter and ensuring the cutting effect.

[0025] 3. The equipment for processing environmentally friendly bamboo leaf tableware, through the setting of the smoothing component, makes it possible for the elastic sheet to smooth the sheet waste while moving after the sheet waste enters the collection box, so that the sheet waste can be stacked and collected more flatly, avoiding wrinkles and warping of some sheet waste, which leads to an increase in the stacking height and affects the collection quantity of sheet waste in the collection box. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0027] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0028] Figure 2 It is a schematic diagram of the structure of the operating table of the present invention;

[0029] Figure 3 It is a schematic structural diagram of the traction device of the present invention;

[0030] Figure 4 This is a schematic diagram of the upper clamping block structure of the present invention;

[0031] Figure 5 This is a schematic structural diagram of the lower clamping block of the present invention;

[0032] Figure 6 It is a schematic diagram of the slot plate structure of the present invention;

[0033] Figure 7 It is a schematic structural diagram of the waste recycling device of the present invention;

[0034] Figure 8 It is a schematic structural diagram of the collection box of the present invention;

[0035] Figure 9 It is a schematic diagram of the pry bar structure of the present invention;

[0036] Figure 10 It is a schematic diagram of the cutter structure of the present invention;

[0037] Figure 11 It is a schematic diagram of the skateboard structure of the present invention;

[0038] Figure 12 It is a schematic structural diagram of the grinding block of the present invention;

[0039] Figure 13 It is a structural schematic diagram of the paving and pressing device of the present invention;

[0040] Figure 14 It is a schematic diagram of the elastic sheet structure of the present invention.

[0041] 1. The camshaft; 2. The camshaft; 3. The camshaft; 4. The camshaft; 5. The camshaft; 6. The camshaft; 7. The camshaft; 8. The camshaft; 9. The camshaft; 10. The camshaft; 11. The camshaft; 12. The camshaft; 13. The camshaft; 14. The camshaft; 15. The camshaft; 16. The camshaft; 17. The camshaft; 18. The camshaft; 19. The camshaft; 20. The camshaft; 21. The camshaft; 22. The camshaft; 23. The camshaft; 24. The camshaft; 25. The camshaft; 26. The camshaft; 27. The camshaft; 28. The camshaft; 29. ​​The camshaft; 30. The camshaft; 31. The camshaft; 32. DETAILED DESCRIPTION

[0042] To make the objectives, technical solutions, and advantages of the present invention more clear, the technical solutions of the present invention will be described in detail below. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other implementations obtained by ordinary technicians in this field without making any creative work are within the scope of protection of the present invention.

[0043] Example 1

[0044] See also Figure 1 - Figure 2 A device for processing environmentally friendly bamboo leaf tableware includes an operating table 1, a mounting table 2 is installed on the operating table 1, four sliding columns 3 are connected to the mounting table 2, the tops of the four sliding columns 3 are connected to a fixed plate 4, a hydraulic cylinder is provided on the fixed plate 4, the outer walls of the four sliding columns 3 are slidably connected to a pressing plate 5, the pressing plate 5 is connected to the output end of the hydraulic cylinder, the bottom surface of the pressing plate 5 is connected to an upper mold 11, and the top surface of the mounting table 2 is connected to a lower mold 12. The operating table 1, the mounting table 2, the sliding columns 3, the fixed plate 4, the pressing plate 5, the upper mold 11 and the lower mold 12 form a conventional molding machine. The device is a prior art, and its specific structure and working principle are not described in detail. The upper mold 11 and the lower mold 12 are equipped with a preheating device, a cooling device, a trimming device and an ejection device. The hydraulic cylinder is started to make the pressure plate 5 drive the upper mold 11 to move downward to realize the molding operation. There are multiple cavities between the upper mold 11 and the lower mold 12. Each molding can process multiple bamboo leaf tableware. After the molding is completed, the multiple bamboo leaf tableware is trimmed by the trimming device to separate the sheet waste from the bamboo leaf tableware. After the bamboo leaf tableware is ejected by the ejection device, the operator uses the unloading clamp to take it out.

[0045] For further information, see Figure 1 - Figure 6, also includes: a traction device 6, which is used to pull the rolled sheet to the lower mold 12 for processing; the traction device 6 includes a slide 62, which is slidably installed on the mounting table 2, and a connecting rod 61 is hinged on the slide 62. The end of the connecting rod 61 away from the slide 62 is hinged to the pressure plate 5. When the pressure plate 5 moves down, the slide 62 is driven to move right by the connecting rod 61. When the pressure plate 5 moves up, the slide 62 is driven to move left by the connecting rod 61. An upper clamping block 63 is fixedly installed on the slide 62, and both sides of the upper clamping block 63 are respectively connected to connecting blocks 64, and a sliding connection is provided on the connecting block 64. There is a first slider 65, and a first sliding shaft 66 is fixedly connected to the first slider 65. A lower clamping block 67 is fixedly connected between the two first sliders 65. Two slot plates 68 are fixedly installed on the mounting platform 2. The lower clamping block 67 is located below the upper clamping block 63. A parallelogram slide is provided on the slot plate 68. The two first sliding shafts 66 are respectively slidably connected with the parallelogram slides of the two slot plates 68. When the two first sliding shafts 66 move from left to right under the lower clamping block 67, the lower clamping block 67 maintains a clamping force with the upper clamping block 63. When the lower clamping block 67 is about to move right to When the lower clamping block 67 is about to move to the left, the two first sliding shafts 66 drive the lower clamping block 67 to move up, so that the lower clamping block 67 and the upper clamping block 63 form a clamp again. When the pressure plate 5 drives the upper mold 11 to move up, the slide 62 moves to the left, and the upper clamping block 63 gradually moves to the top of the right end edge of the sheet. The lower clamping block 67 moves to the bottom of the right end edge of the sheet. The sheet is gradually moved up at the same time, and finally the lower clamping block 67 and the upper clamping block 63 clamp the sheet. When the pressing plate 5 moves down for the next time, the lower clamping block 67 and the upper clamping block 63 can pull the sheet to the right. Through the setting of the traction device 6, the lower clamping block 67 cooperates with the upper clamping block 63 to pull the sheet every time the upper mold 11 moves down, so that the next section of the sheet is covered on the lower mold 12, and the sheet waste is separated from the lower mold 12, realizing the effect of automatic traction, eliminating the operation steps of manual sheet laying, improving work efficiency, and improving safety during operation.

[0046] Further, see Figure 2 - Figure 3 A reel 9 is rotatably mounted on the operating table 1 through a bracket. The reel 9 and the slide 62 are respectively located on both sides of the lower mold 12. Two tensioning rollers 10 are rotatably mounted on the operating table 1 through a bracket. The two tensioning rollers 10 are located between the reel 9 and the lower mold 12. The rolled sheet is mounted on the reel 9, one end of the sheet is pulled out, passed through the two tensioning rollers 10, and then pulled to the right. The two tensioning rollers 10 have a certain flexibility. The two tensioning rollers 10 can form a certain clamping force on the sheet to maintain the tension of the sheet during traction. Through the setting of the two tensioning rollers 10, the two tensioning rollers 10 tension the sheet when the sheet is pulled to avoid wrinkles in the sheet.

[0047] Also, see Figure 1 、 Figure 7 - Figure 9 , the waste recovery device 7 is used to stack and collect the sheet waste after cutting; the waste recovery device 7 includes a mounting box 71 and a collecting box 72, the mounting box 71 is fixedly mounted on the mounting table 2, and the collecting box 72 is slidably mounted in the mounting box 71, and the collecting box 72 is located below the movement trajectory of the slide 62. The collecting box 72 is used to collect sheet waste, and the collecting box 72 is installed in the mounting box 71 like a drawer and can be pulled out to facilitate the processing of sheet waste.

[0048] In addition, see Figure 7 - Figure 10 The scrap recycling device 7 also includes two pry bars 73, a cross bar 74, two second sliding shafts 75, two second sliders 76, a cutter 77 and a resisting bar 713. The two pry bars 73 are rotatably mounted on both sides of the installation box 71, and the cross bar 74 is fixedly connected to the slide 62. One end of the pry bar 73 is provided with a sliding groove, and the other end of the pry bar 73 is located on the movement trajectory of the cross bar 74. The two second sliders 76 respectively penetrate and slideably connect to both sides of the installation box 71. The two second sliding shafts 75 are respectively fixedly connected to the two second sliders 76. The two second sliding shafts 75 are respectively slidably connected to the sliding grooves of the two pry bars 73, and the cutter 77 is fixedly connected between the two second sliders 76. When the cross bar 74 moves, it contacts the two pry bars 73 and drives the two pry bars 73 to rotate clockwise. The left ends of the two pry bars 73 pass through two When the cam 73 is in the closed position, the knife 73 is in the closed position, and the knife 73 is in the open position, so that the knife 73 is in the open position, and the knife 73 is in the open position, so that the knife 73 is in the open position, and the knife 73 is in the open position, so that the knife 73 is in the open position, and the knife 73 is in the open position, so that the knife 73 is in the open position, and the knife 73 is in the open position, so that the knife 73 is in the open position,

[0049] It is worth noting that see Figure 10 - Figure 12The waste recycling device 7 also includes two slides 78 and two grinding blocks 79. The two slides 78 are slidably connected to the inside of the mounting box 71. The two grinding blocks 79 are respectively connected to the two slides 78 by multiple springs. The two grinding blocks 79 are in contact with both sides of the cutter 77 respectively. The two grinding blocks 79 maintain pressure on both sides of the cutter 77 through the elastic force of multiple springs on the two slides 78. Therefore, when the cutter 77 moves up and down, the two grinding blocks 79 can continuously grind the cutter 77 to maintain the sharpness of the cutter 77.

[0050] It is worth noting that, please refer to Figure 11 - Figure 12 The waste recycling device 7 also includes two corrugated bars 710, two leaf springs 711 and two dial shafts 712. The two corrugated bars 710 are respectively fixedly connected to one side of the two slides 78, and the two leaf springs 711 are respectively fixedly connected to the other side of the two slides 78. The outer walls of the two leaf springs 711 away from the slides 78 are in contact with the inner wall of the mounting box 71. The two dial shafts 712 are fixedly connected to the second slider 76 close to the corrugated bars 710. The two dial shafts 712 are in sliding contact with the two corrugated bars 710 respectively. When the dial shaft 712 moves up and down, it passes through the corrugated bars 710. The strip 710 drives the slide plate 78 to move back and forth in a small range, and the two slide plates 78 drive the two grinding blocks 79 to move back and forth in a small range through multiple springs, so that the two grinding blocks 79 can not only contact the two sides of the cutter 77 longitudinally, but also perform horizontal grinding by reciprocating movement, thereby optimizing the grinding effect. Through the setting of the two grinding blocks 79, the two grinding blocks 79 can move back and forth in the horizontal direction while the cutter 77 moves up and down to grind the two sides of the cutter 77, thereby maintaining the sharpness of the cutter 77 and ensuring the cutting effect.

[0051] It is worth mentioning that see Figure 1 、 Figure 13 - Figure 14The smoothing component 8 is used to smooth the stacked sheet waste; the smoothing component 8 includes a rotating shaft 81, a connecting seat 82, an elastic piece 83, and a connecting frame 84; a pressure rod 85 and two coil springs 86, the rotating shaft 81 is rotatably mounted on the slide 62, the connecting seat 82 is fixedly connected to the outer wall of the rotating shaft 81, the elastic piece 83 is fixedly connected to the connecting seat 82, and the connecting frame 84 is fixedly connected to the side wall of the lower clamping block 67, the pressure rod 85 is fixedly connected to the end of the connecting frame 84 away from the lower clamping block 67, and the pressure rod 85 is in sliding contact with the top surface of the connecting seat 82. The outer walls of both ends of the rotating shaft 81 are respectively fixedly connected with a coil spring 86, and the ends of the two coil springs 86 away from the rotating shaft 81 are fixedly connected to the slide 62. When the pressure rod 85 moves downward, it presses against the connecting seat 82 and drives the connecting seat 82 and the rotating shaft 81 to rotate clockwise, and the connecting seat 82 drives the elastic piece 83 to swing downward, and the pressure rod 8 After moving upward, the rotating shaft 81 is reset by the elastic force of the two coil springs 86, and the elastic piece 83 is able to contact the sheet waste in the collection box 72 after swinging downward. The elastic piece 83 is elastic. When the elastic piece 83 contacts the top surface of the sheet waste, it is deformed and exerts a small amount of pressure on the sheet waste. During the process of the elastic piece 83 moving left, the elastic piece 83 smoothes the sheet waste. When the lower clamping block 67 and the upper clamping block 63 pull the sheet waste to the right, the elastic piece 83 is reset and no longer contacts the sheet waste. By setting the smoothing component 8, after the sheet waste enters the collection box 72, the elastic piece 83 can smooth the sheet waste during movement, so that the sheet waste is stacked and collected more flatly, avoiding wrinkles and warping of some sheet waste, which leads to an increase in the stacking height, thereby affecting the collection amount of sheet waste in the collection box 72.

[0052] Example 2

[0053] A method for manufacturing environmentally friendly bamboo leaf tableware, using the environmentally friendly bamboo leaf tableware processing equipment in Example 1, further comprising the following steps:

[0054] Step 1: Raw material pretreatment: remove impurities from bamboo leaves and wash them to prepare bamboo leaf fiber raw materials;

[0055] Step 2: Mix the ingredients and prepare polylactic acid. Weigh the bamboo fiber raw material and polylactic acid in a mass ratio of seven to three. At the same time, add glycerin as a plasticizer and food-grade beeswax as a waterproofing agent. Add the bamboo fiber raw material, polylactic acid, glycerin and food-grade beeswax in a high-speed blender to fully mix the materials to obtain a mixture.

[0056] Step 3: Sheet preparation: the mixed material is put into a twin-screw extruder. After the mixed material is heated and melted in the extruder, it is extruded into a thin sheet through a flat die. Subsequently, the sheet enters a calender and is rolled into a sheet under the action of calender rollers. After cooling, it is rolled up for use.

[0057] Step 4: Molding. The upper mold 11 and the lower mold 12 are preheated. The sheet is pulled by the pulling device 6 so that the sheet covers the lower mold 12. The sheet is molded after the upper mold 11 moves downward to fully shape the sheet. After the molding is completed, the sheet is cooled and demoulded to obtain the preliminary bamboo leaf tableware. The waste recycling device 7 automatically cuts and stacks the sheet waste for collection;

[0058] Step 5: Post-processing: Surface treatment of the demoulded bamboo leaf tableware is carried out by spraying a waterproof coating made of a mixture of natural wax and vegetable oil to enhance the waterproof and oil-proof properties of the tableware. Then, cutting equipment is used to cut and trim the tableware to remove excess parts on the edges to ensure the dimensional accuracy of the tableware. The tableware is then disinfected and dried to complete the manufacture of environmentally friendly bamboo leaf tableware.

[0059] With the above structure, the working principle of this case is to Figure 1As a reference for direction, the rolled sheet is installed on the reel 9, one end of the sheet is pulled out, passed through two tensioning rollers 10, and then pulled to the right. The operating table 1, the mounting table 2, the sliding column 3, the fixing plate 4, the pressing plate 5, the upper mold 11 and the lower mold 12 constitute a conventional molding device, which is the existing technology. Its specific structure and working principle are not described in detail. The upper mold 11 and the lower mold 12 are provided with a preheating device, a cooling device, a trimming device and an ejection device. The hydraulic cylinder is started to make the pressing plate 5 drive the upper mold 11 to move downward to realize the molding operation. There are multiple cavities between the upper mold 11 and the lower mold 12. Each molding can process multiple bamboo leaf tableware. After the molding is completed, the multiple bamboo leaf tableware is trimmed by the trimming device to separate the sheet waste from the bamboo leaf tableware. The bamboo leaf tableware is ejected by the ejection device. When the pressing plate 5 moves downward, the slide 62 is driven to the right by the connecting rod 61; when the pressing plate 5 moves upward, the slide 62 is driven to the left by the connecting rod 61; when the slide 62 moves, the upper clamping block 63 is driven to move synchronously; when the upper clamping block 63 moves left and right, the lower clamping block 67 is driven to move left and right synchronously by the two connecting blocks 64 and the two first sliders 65; when the two first sliders 65 move left and right, they also drive the two first slide shafts 66 to move left and right synchronously. Taking one of the first slide shafts 66 and the slot plate 68 as an example, the parallelogram slot of the slot plate 68 has two straight sides and two oblique sides. When the first slide shaft 66 moves from left to right, it slides on the upper straight side. When the first slide shaft 66 is about to move to the right, the first slide shaft 66 enters the right oblique side and moves along the When the first slide shaft 66 is about to move to the left, the first slide shaft 66 enters the left hypotenuse and slides obliquely upward along the hypotenuse. When the first slide shaft 66 is moved to the left, the first slide shaft 66 enters the upper hypotenuse again, and the first slide shaft 66 moves to the right again and repeats the above process. Therefore, when the two first slide shafts 66 move from left to right on the lower clamping block 67, the lower clamping block 67 maintains the clamping force with the upper clamping block 63. When the lower clamping block 67 is about to move to the right, the two first slide shafts 66 drive the lower clamping block 67 to move downward, so that the lower clamping block 67 and the upper clamping block 63 lose their clamping force, and the lower clamping block 67 moves from right to left. When moving, the lower clamping block 67 and the upper clamping block 63 remain in an open state. When the lower clamping block 67 is about to move to the left, the two first sliding shafts 66 drive the lower clamping block 67 to move up, so that the lower clamping block 67 and the upper clamping block 63 are clamped again. When the lower clamping block 67 moves to the left, an effective clamping is formed between the lower clamping block 67 and the upper clamping block 63. At the beginning of the molding operation, when the pressing plate 5 drops a certain distance, the hydraulic cylinder is stopped first. At this time, the slide 62 and the upper clamping block 63 have moved to the right, and one end of the sheet is pumped to the right for a distance, so that the right edge of the sheet is located on the movement trajectory of the lower clamping block 67. The sheet has a certain toughness, and its protruding edge can be slightly kept in a horizontal state. Then the normal molding operation is carried out. After the upper mold 11 completes the first downward pressing, the pressing plate 5 drives the upper mold 11 to move up and reset.The slide 62 moves to the left, and the upper clamping block 63 gradually moves to above the right end edge of the sheet. The lower clamping block 67 gradually moves up when it moves to below the right end edge of the sheet. Finally, the lower clamping block 67 and the upper clamping block 63 clamp the sheet. When the pressing plate 5 moves down for the next time, the lower clamping block 67 and the upper clamping block 63 can pull the sheet to the right, so that the sheet waste is separated from the top of the lower mold 12, and the next section of the sheet is laid on the lower mold 12. When the upper mold 11 and the lower mold 12 are closed, the lower clamping block 67 moves down to release the clamping of the sheet. When the upper mold 11 and the lower mold 12 are separated again, the lower clamping block 67 moves to the left and remains in a loose state, and then the lower clamping block 67 moves up to clamp the sheet again. After the upper mold 11 moves down again, the lower clamping block 67 and the upper clamping block 63 are pulled again. Thus, the effect of automatically pulling the sheet is achieved. The two tensioning rollers 10 have a certain flexibility. The two tensioning rollers 10 can form a certain clamping force on the sheet, maintain the tension of the sheet during pulling, and avoid wrinkles. Through the setting of the pulling device 6, the lower clamping block 67 cooperates with the upper clamping block 63 to pull the sheet every time the upper mold 11 moves downward, so that the next section of the sheet covers the lower mold 12, and the sheet waste is separated from the lower mold 12, achieving the effect of automatic pulling, eliminating the operation steps of manually laying the sheet, improving work efficiency, and also improving safety during operation. Through the setting of the two tensioning rollers 10, the two tensioning rollers 10 tension the sheet when the sheet is pulled, avoiding sheet wrinkles.

[0060] When the second stop 76 is in the closed position, the left end of the two pry bars 73 can only move up and down, so that the left end of the two pry bars 73 can drive the two second slide blocks 76 to move up through the two sliding grooves and the two second slide shafts 75. When the two second slide blocks 76 move up, the cutter 77 moves up. When the slide 62 is about to move to the right, the cutter 77 contacts the sheet and presses the sheet against the stop bar 713. The stop bar 713 is provided with a notch, and the cutting edge of the cutter 77 is shaped like the notch of the stop bar 713. After the cutter 77 cuts the sheet, the cross bar 74 contacts the straight section of the pry bar 73, and the crowbar 73 is not driven to rotate during the subsequent movement of the cross bar 74 to the right and the contact with the straight section of the pry bar 73, so that after the cutter 77 cuts the sheet, the lower clamping block 67 and the upper clamping block 63 can still drive the sheet to move a small distance to the right, so that the sheet falls completely into the collection box 72. After the sheet falls into the collection box 72, the lower clamping block 67 and the upper clamping block 63 move left, and then When the second slider 76 connected to the two shift shafts 712 moves up and down, the two shift shafts 712 slide on the two wave bars 710 respectively. Since the shift shaft 712 can only move up and down in a straight line, the slide 78 uses the elastic force of the leaf spring 711 to always keep the wave bar 710 in contact with the shift shaft 712, so that the shift shaft 712 can move up and down. When moving up and down, the slide plate 78 is driven by the corrugated bar 710 to perform a small reciprocating movement. The two slide plates 78 drive the two grinding blocks 79 to perform a small reciprocating movement through multiple springs, so that the two grinding blocks 79 can contact the two sides of the cutter 77 longitudinally while also performing transverse grinding by reciprocating movement, thereby optimizing the grinding effect; through the arrangement of the waste recovery device 7, whenever the lower clamping block 67 and the upper clamping block 63 pull the sheet waste to the right, the cutter 77 can automatically move up and cut the sheet waste by cooperating with the abutting bar 713, so that the cut sheet waste is spread flat in the collection box 72. After being pulled and cut, the sheet waste can be stacked in the collection box 72, making the sheet waste in the collection box 72 more neat and improving the utilization rate of the storage space;By setting up the two grinding blocks 79, the two grinding blocks 79 can move back and forth horizontally while the cutter 77 moves up and down to grind both sides of the cutter 77, thereby maintaining the sharpness of the cutter 77 and ensuring the cutting effect.

[0061] When the slide 62 moves left and right, it drives the rotating shaft 81 to move synchronously, and the rotating shaft 81 drives the elastic piece 83 to move synchronously through the connecting seat 82. When the lower clamping block 67 moves up and down, it drives the pressure rod 85 to move up and down synchronously through the connecting frame 84. When the pressure rod 85 moves down, it abuts the connecting seat 82 and drives the connecting seat 82 and the rotating shaft 81 to rotate clockwise, and the connecting seat 82 drives the elastic piece 83 to swing downward. After the pressure rod 85 moves up, the rotating shaft 81 is reset by the elastic force of the two coil springs 86, and the connecting seat 82 drives the elastic piece 83 to reset. Therefore, when the lower clamping block 67 moves from left to right, the elastic piece 83 does not swing downward because the lower clamping block 67 has not moved down yet. When the lower clamping block 67 moves down, the sheet waste has been cut and falls into the collection box 72. When the lower clamping block 67 moves to the left, the pressure rod 85 moves down, and the elastic piece 83 The sheet 83 also swings downward, and the elastic sheet 83 can contact the sheet waste in the collection box 72 after swinging downward. The elastic sheet 83 is elastic. When the elastic sheet 83 contacts the top surface of the sheet waste, it is deformed and applies a small amount of pressure to the sheet waste. In the process of the elastic sheet 83 moving to the left, the elastic sheet 83 smoothes the sheet waste. When the lower clamping block 67 and the upper clamping block 63 pull the sheet waste to the right, the elastic sheet 83 is reset and does not contact the sheet waste. Through the setting of the smoothing component 8, after the sheet waste enters the collection box 72, the elastic sheet 83 can smooth the sheet waste while moving, so that the sheet waste is stacked and collected more flat, avoiding wrinkles and warping of some sheet waste, which leads to an increase in the stacking height, thereby affecting the collection quantity of sheet waste in the collection box 72.

[0062] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any modifications or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included in the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A device for processing environmentally friendly bamboo leaf tableware, comprising an operating table (1), a mounting table (2) mounted on the operating table (1), four sliding columns (3) connected to the mounting table (2), the tops of the four sliding columns (3) connected to a fixing plate (4), the outer walls of the four sliding columns (3) slidably connected to a pressing plate (5), the bottom surface of the pressing plate (5) connected to an upper mold (11), and the top surface of the mounting table (2) connected to a lower mold (12), characterized in that: Also includes: A traction device (6) is used to pull the rolled sheet material onto the lower die (12) for processing; A waste material recovery device (7) is used for stacking and collecting the sheet material waste after cutting; a smoothing component (8) for smoothing the stacked sheet waste; The traction device (6) includes a slide (62), the slide (62) is slidably mounted on the mounting platform (2), a connecting rod (61) is hinged on the slide (62), and one end of the connecting rod (61) away from the slide (62) is hinged to the pressure plate (5), an upper clamping block (63) is fixedly mounted on the slide (62), and connecting blocks (64) are respectively connected to both sides of the upper clamping block (63), a first slider (65) is slidably connected to the connecting block (64), a first sliding shaft (66) is fixedly connected to the first slider (65), a lower clamping block (67) is fixedly connected between the two first sliders (65), and two slot plates (68) are fixedly mounted on the mounting platform (2).

2. The equipment for processing environmentally friendly bamboo leaf tableware according to claim 1, characterized in that: The lower clamping block (67) is located below the upper clamping block (63), and a parallelogram sliding groove is provided on the groove plate (68). The two first sliding shafts (66) are respectively slidably connected to the parallelogram sliding grooves of the two groove plates (68).

3. The equipment for processing environmentally friendly bamboo leaf tableware according to claim 2, characterized in that: A reel (9) is rotatably mounted on the operating table (1) via a bracket, the reel (9) and the slide (62) are respectively located on both sides of the lower die (12), and two tensioning rollers (10) are rotatably mounted on the operating table (1) via a bracket, the two tensioning rollers (10) are located between the reel (9) and the lower die (12).

4. The equipment for processing environmentally friendly bamboo leaf tableware according to claim 2, characterized in that: The waste recycling device (7) comprises a mounting box (71) and a collecting box (72), wherein the mounting box (71) is fixedly mounted on the mounting platform (2), and the collecting box (72) is slidably mounted in the mounting box (71), and the collecting box (72) is located below the movement track of the slide (62).

5. The equipment for processing environmentally friendly bamboo leaf tableware according to claim 4, characterized in that: The waste recycling device (7) further comprises two pry bars (73), a cross bar (74), two second slide shafts (75), two second sliders (76), a cutter (77) and a resisting bar (713), wherein the two pry bars (73) are rotatably mounted on both sides of the mounting box (71), the cross bar (74) is fixedly connected to the slide (62), one end of the pry bar (73) is provided with a sliding groove, and the other end of the pry bar (73) is located on the motion track of the cross bar (74), and the two The second sliders (76) are respectively connected to the two sides of the installation box (71) by sliding, the two second sliding shafts (75) are respectively fixedly connected to the two second sliders (76), the two second sliding shafts (75) are respectively connected to the sliding grooves of the two pry bars (73) by sliding, the cutter (77) is fixedly connected between the two second sliders (76), the resisting bar (713) is fixedly connected to the two slot plates (68), and the resisting bar (713) is located on the movement track of the cutter (77).

6. The equipment for processing environmentally friendly bamboo leaf tableware according to claim 5, characterized in that: The waste recycling device (7) further comprises two slides (78) and two grinding blocks (79), wherein the two slides (78) are both slidably connected to the interior of the mounting box (71), and the two grinding blocks (79) are respectively connected to the two slides (78) via a plurality of springs, and the two grinding blocks (79) are respectively in contact with both sides of the cutter (77).

7. The equipment for processing environmentally friendly bamboo leaf tableware according to claim 6, characterized in that: The waste recycling device (7) further comprises two corrugated bars (710), two leaf springs (711) and two shifting shafts (712); the two corrugated bars (710) are respectively fixedly connected to one side of the two slides (78); the two leaf springs (711) are respectively fixedly connected to the other side of the two slides (78); the outer walls of the two leaf springs (711) away from the slides (78) are in contact with the inner wall of the mounting box (71); the two shifting shafts (712) are fixedly connected to the second slider (76) close to the corrugated bars (710); and the two shifting shafts (712) are respectively in sliding contact with the two corrugated bars (710).

8. The equipment for processing environmentally friendly bamboo leaf tableware according to claim 2, characterized in that: The smoothing assembly (8) includes a rotating shaft (81), a connecting seat (82), an elastic sheet (83), a connecting frame (84); a pressure rod (85) and two coil springs (86); the rotating shaft (81) is rotatably mounted on the slide (62); the connecting seat (82) is fixedly connected to the outer wall of the rotating shaft (81); the elastic sheet (83) is fixedly connected to the connecting seat (82); the connecting frame (84) is fixedly connected to the side wall of the lower clamping block (67); and the pressure rod (85) is fixedly connected to one end of the connecting frame (84) away from the lower clamping block (67).

9. The equipment for processing environmentally friendly bamboo leaf tableware according to claim 8, characterized in that: The pressure rod (85) is in sliding contact with the top surface of the connecting seat (82), and the outer walls at both ends of the rotating shaft (81) are fixedly connected with coil springs (86), and the ends of the two coil springs (86) away from the rotating shaft (81) are fixedly connected to the slide (62).

10. A method for manufacturing environmentally friendly bamboo leaf tableware, characterized by: The device for processing environmentally friendly bamboo leaf tableware according to any one of claims 1 to 9 further comprises the following steps: Step 1: Raw material pretreatment: remove impurities from bamboo leaves and wash them to prepare bamboo leaf fiber raw materials; Step 2: Mix the ingredients and prepare polylactic acid. Weigh the bamboo fiber raw material and polylactic acid in a mass ratio of seven to three. At the same time, add glycerin as a plasticizer and food-grade beeswax as a waterproofing agent. Add the bamboo fiber raw material, polylactic acid, glycerin and food-grade beeswax in a high-speed blender to fully mix the materials to obtain a mixture. Step 3: Sheet preparation: the mixed material is put into a twin-screw extruder. After the mixed material is heated and melted in the extruder, it is extruded into a thin sheet through a flat die. Subsequently, the sheet enters a calender and is rolled into a sheet under the action of calender rollers. After cooling, it is rolled up for use. Step 4: Molding, the upper mold (11) and the lower mold (12) are preheated, and the sheet is pulled by the pulling device (6) so that the sheet covers the lower mold (12). The sheet is molded after the upper mold (11) moves downward to fully shape the sheet. After the molding is completed, the sheet is cooled and demoulded to obtain preliminary bamboo leaf tableware. The waste recycling device (7) automatically cuts and stacks the sheet waste for collection; Step 5: Post-processing: Surface treatment of the demoulded bamboo leaf tableware is carried out by spraying a waterproof coating made of a mixture of natural wax and vegetable oil to enhance the waterproof and oil-proof properties of the tableware. Then, cutting equipment is used to cut and trim the tableware to remove excess parts on the edges to ensure the dimensional accuracy of the tableware. The tableware is then disinfected and dried to complete the manufacture of environmentally friendly bamboo leaf tableware.

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