Preparation method and production equipment of stone carton

Abstract

The stone carton production equipment comprises a rack and power equipment assembled outside the rack, a machining roller is assembled on one side of the rack, stone paper is clamped and conveyed in the machining roller, and a forming device is assembled on the other side of the rack. According to the mold closing equipment provided with the heat sealing device and used for stone carton production, after stone paper is subjected to direct injection molding according to different layers, after the equipment is adopted for conveying and heating bonding faces, mold closing is directly conducted to form the corrugated carton form of the stone carton, and finally a stone-based carton product can be directly formed through pressing and bending lines; the problem that in the production process of stone-based cartons produced in an existing traditional mode, generated waste is not convenient to recycle is effectively solved, the intelligent and high-precision mold closing mode is achieved, it is guaranteed that the produced stone cartons have better performance, and the production mode is more environmentally friendly.

Description

Technical Field

[0001] The invention relates to the field of stone cartons, and in particular to a method for preparing a stone cartons and production equipment thereof. Background Art

[0002] At present, traditional carton production mainly relies on paper made from wood pulp. However, with the improvement of global environmental protection awareness, the wood resources used in the paper production process are gradually limited. In addition, the traditional carton production process requires large sheets of paper to be pasted and cut into the required shape, which will result in a large amount of cutting waste. Although the traditional paper recycling industry is relatively sound, paper recycling also faces certain difficulties.

[0003] For this reason, stone paper has gradually entered the market as a new type of environmentally friendly material. Stone paper is made of minerals such as calcium carbonate, has good waterproof, wear-resistant and environmentally friendly properties, and does not require the use of wood in the production process, which can greatly reduce dependence on forest resources. However, in the existing stone paper corrugated box production process, it is usually necessary to first make stone paper into paper separately, and then carry out subsequent cutting and compounding. This process still produces a large amount of cutting waste, which increases material waste and production costs. At the same time, due to the special physical properties of stone paper, the same volume of stone paper waste is compared with traditional paper waste. Compared with traditional paper waste, its recycling process is more complicated and not conducive to recycling. In view of the above problems, a stone paper box preparation method and production equipment are proposed. Summary of the invention

[0004] The object of the present invention is to provide a method for preparing a stone carton and a production device thereof to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a method for preparing a stone carton and a production device thereof, comprising a frame and a power device mounted on the outside of the frame, a processing roller is mounted on one side of the frame, stone paper is clamped and conveyed inside the processing roller, and a forming device is mounted on the other side of the frame; the processing roller comprises a heating roller, which is divided into several groups and vertically mounted on the inner side of the frame; the heating roller is a rotating hollow roller, which rotates through bearing seats on both sides and an external power device, and a heating core is coaxially mounted at the center of the heating roller, and the heating core conducts heat to the outer wall of the heating roller and adheres to the stone paper The stone paper comprises a plurality of paper layers, the outer surface of the paper layer is heated by contact with the outer surface of the heating roller to form an adhesive layer in an external melted state; the forming device comprises a positioning transmission roller, the positioning transmission roller is fixed to the outer surface of the frame through a bearing seat, the inner side of the positioning transmission roller is located on the outer surface of the frame and is equipped with a driven adjustment roller, the outer sleeve of the positioning transmission roller and the driven adjustment roller is equipped with a mold clamping belt; a fixing strip is fixed to the outside of the mold clamping belt, a signal transmitter is installed at the axis of the fixing strip, a contact switch is installed on the outside of the fixing strip, and a baffle is installed on the outside of the outer trigger point of the contact switch.

[0006] Preferably, the frame includes a fixing plate, and a strip hole 1 and a strip hole 2 are formed on the outer side of the fixing plate, wherein the strip hole 1 is used for positioning the forming device, and the strip hole 2 is used for positioning the heating roller.

[0007] Preferably, a mounting hole is provided on the outer side of the fixing plate.

[0008] Preferably, the stone paper comprises an outer layer, a corrugated layer and an inner layer, and the outer sides of the outer layer, the corrugated paper and the inner layer are clamped on the inner side of the heating roller.

[0009] Preferably, both ends of the positioning drive roller and the driven adjustment roller are equipped with bearing seats, the positioning drive roller and the driven adjustment roller are rotatably assembled with the bearing seats, the bearing seats are clamped and fixed on the outer walls on both sides of the opening of the second strip hole, and at least one group of the positioning drive rollers is connected to an external power device.

[0010] Preferably, at least two heating rollers are used in a group, the outer side of one heating roller in any group is connected to an external power device, and the rotation speed of the heating rollers in the group can be adjusted.

[0011] Preferably, at least two sets of the fixing plates are used and are symmetrically arranged.

[0012] Preferably, a baffle is provided on the outer side of the processing roller and on the inner side of the fixed plate, and the inner surface of the baffle is in contact with the edge of one side of all the paper layers constituting the stone paper.

[0013] A preparation method based on stone paperboard production equipment, comprising the following steps: Step A: Paper preparation: Calcium carbonate powder, polymer material powder, modifier, additive and characteristic auxiliary agent are mixed to prepare at least three different stone-based papers including outer layer, corrugated layer and inner layer, and the paper is directly extruded and injection molded according to preset size; Step B: Equipment loading, before production, all equipment needs to be started, the rotation speed of each roller is adjusted, and the preheating heating core is used to preheat the heating roller that needs to contact the heating surface, and then the outer layer, corrugated layer and inner layer produced are input into the corresponding group of heating rollers in the processing roller in a synchronous order through a conveyor belt with baffles. The inner side of the roller; Step C: Transfer heating, adjusting the temperature of the heating core so that the heating temperature of the heating core is transferred to the outer wall temperature of the heating roller, which is 5-20℃ higher than the melting temperature of the corresponding paper layer; Step D: Bending and closing the mold, the heated outer layer, corrugated layer and inner layer are transferred from one side of the processing roller to one side of the forming device, the outer layer and the inner layer are bent inward to meet the corrugated layer, and the heated surfaces are pressed and shaped by the symmetrical double-layer closing belts; Step E: Cooling and stacking, after walking from the inside to the outside of the forming device, the stone carton board is composited as a whole, cooled by the cooling fan arranged on the outside of the frame, and finally stacked, and the preparation is completed.

[0014] Preferably, in step D, a single set of heating rollers can be adjusted individually, and before mold closing, the outer layer and the inner layer will respectively hit the outer surface of the baffle, and after the baffle is triggered by contact, the contact switch is turned on, activating the signal transmitter to transmit a signal to a receiving device outside the device, and the device compares the signal receiving position trajectory record with the mechanical rotation transmission mold closing belt position record to determine whether the contact position of the outer layer and the inner layer with the fixed bar meets the preset position inside the device, and if so, continue the synchronous rotation mold closing operation, and if not, adjust the paper layer that contacts the baffle to run forward to the synchronous position before performing the mold closing operation to ensure the edge neatness of the finished stone carton sheet formed after mold closing.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention provides a mold closing device for producing stone cartons with a heat-sealing device, after the stone paper is directly injection-molded according to different layers, the heating and bonding surface is transmitted by the present device, and then the corrugated paper box shape of the stone paper box is directly closed, and finally the stone-based carton product can be directly formed by pressing the bending line. Compared with the traditional production method of cutting after paper shaping and closing the mold, the recycling method of the cut stone paper is more troublesome than the recycling method of traditional paper. Therefore, the stone paper processing method applied by the present invention has a more environmentally friendly effect in the final molded product compared with the stone-based carton of the prior art, and effectively solves the problem that the waste generated in the production process of the stone-based carton produced by the existing traditional method is not easy to recycle, and has a more intelligent and more precise closing method, which ensures that the stone carton after production has better performance and a more environmentally friendly production method. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the main production mechanism structure of the present invention; Figure 2 It is a schematic diagram of the assembly of the production equipment of the present invention; Figure 3 It is a schematic diagram of the exit of the production equipment of the present invention; Figure 4 It is a front view of the production equipment of the present invention; Figure 5 for Figure 4 A magnified schematic diagram of the structure at point a.

[0017] In the figure: 1, frame, 11, fixing plate, 12, mounting hole, 13, strip hole one, 14, strip hole two, 2, stone paper, 21, outer layer, 22, corrugated layer, 23, inner layer, 3, processing roller, 31, heating roller, 32, supporting roller, 4, forming device, 41, positioning drive roller, 42, driven adjustment roller, 43, mold closing belt, 44, fixing strip, 45, baffle. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] See also Figure 1-5The present invention provides a technical solution: a method for preparing a stone carton and a production device thereof, comprising a frame 1 and a power device mounted on the outside of the frame 1, a processing roller 3 is mounted on one side of the frame 1, a stone paper 2 is clamped and conveyed inside the processing roller 3, and a forming device 4 is mounted on the other side of the frame 1; the processing roller 3 comprises a heating roller 31, which is divided into several groups and vertically mounted on the inner side of the frame 1; the heating roller 31 is a rotating hollow roller, which rotates through bearing seats on both sides and an external power device, and a heating core is coaxially mounted at the center of the heating roller 31, and the heating core conducts heat to the outer wall of the heating roller 31 and contacts with the adhesive surface of the stone paper 2 for heating The stone paper 2 comprises a plurality of paper layers, the outer surface of the paper layer is in contact with the outer surface of the heating roller 31 to be heated to form an adhesive layer in an external melted state; the forming device 4 comprises a positioning transmission roller 41, the positioning transmission roller 41 is fixed to the outer surface of the frame 1 through a bearing seat, the inner side of the positioning transmission roller 41 is located on the outer surface of the frame 1 and is equipped with a driven adjustment roller 42, the outer sleeve of the positioning transmission roller 41 and the driven adjustment roller 42 is equipped with a clamping belt 43; a fixing strip 44 is fixed to the outside of the clamping belt 43, a signal transmitter is installed at the axis of the fixing strip 44, a contact switch is installed on the outside of the fixing strip 44, and a baffle 45 is installed on the outside of the outer trigger point of the contact switch.

[0020] The present invention provides a mold closing device for producing stone cartons with a heat-sealing device. After the stone paper is directly injection-molded according to different layers, the heating and bonding surface is transmitted by the device, and then the corrugated paper box shape of the stone paper box is directly closed. Finally, the stone-based carton product can be directly formed by pressing the bending line. Compared with the traditional production method of cutting after paper shaping and closing the mold, the recycling method of the cut stone paper is more troublesome than the recycling method of traditional paper. Therefore, the stone paper processing method applied by the present invention has a more environmentally friendly effect in the final molded product compared with the stone-based carton of the prior art, and effectively solves the problem that the waste generated in the production process of the stone-based carton produced by the existing traditional method is not easy to recycle, and has a more intelligent and more precise closing method, which ensures that the stone carton after production has better performance and the production method is more environmentally friendly.

[0021] Specifically, the frame 1 includes a fixed plate 11, and a strip hole 13 and a strip hole 14 are opened on the outer side of the fixed plate 11. The strip hole 13 is used to position the forming device 4, and the strip hole 14 is used to position the heating roller 31. The strip hole 13 and the strip hole 14 are in the form of waist-shaped holes. When in use, all the round roller-shaped structures that need to be active and driven in the present application are clamped and fixed on the outer surface of the strip hole 13 or the strip hole 2 14 through the bearing seat and the mounting surface of the bearing seat. The clips with the same shape, size and opening position are clamped and fixed. The position of each roller can be adjusted without affecting the rotation of each roller.

[0022] Specifically, the stone paper 2 includes an outer layer 21, a corrugated layer 22 and an inner layer 23. The outer sides of the outer layer 21, the corrugated paper 22 and the inner layer 23 are clamped on the inner side of the heating roller 31. The stone paper 2 includes at least the outer layer 21, the corrugated layer 22 and the inner layer 23. When necessary, the stone paper made of the same material as the corrugated layer 22 or other materials is used as the middle layer. With the paper layer technology, the three-layer carton with the lowest number of layers in this application can produce stone cartons with 5 layers, 7 layers or even more odd layers. The stone carton styles produced include not only the three-layer carton in this application.

[0023] Specifically, both ends of the positioning transmission roller 41 and the driven adjustment roller 42 are equipped with bearing seats, and the positioning transmission roller 41 and the driven adjustment roller 42 are rotatably assembled with the bearing seats, and the bearing seats are clamped and fixed on the outer walls on both sides of the opening of the strip hole 14, wherein at least one group of positioning transmission rollers 41 is connected to an external power device, and the positioning transmission rollers 41 are used to determine the outer support position, and determine the width and height of the forming device. The forming device 4 is symmetrically arranged in two sets, and the spacing between the mold belts 43 on the inner side of the two sets of forming devices 4 is the thickness of the final stone carton paperboard; The number of positioning transmission rollers 41 used for positioning is generally 3, including two positioning transmission rollers 41 at the top and arranged on both sides for determining the width of the overall forming device, and one positioning transmission roller 41 located on the side of the final position of the device for discharging and forming determines the thickness of the stone-based carton after the final mold closing; The driven regulating roller 42 is arranged at the contact position of the stone-paper-paper layer mold. The spacing of the driven regulating rollers 42 symmetrically arranged in the conveying direction from the processing roller 3 to the forming device 4 is gradually reduced. The reduced spacing is the largest in the direction close to the heating position and gradually decreases outward. The number of driven regulating rollers 42 used in a single-group forming device 4 is at least two, and the number of driven regulating rollers 42 used in a symmetrically arranged forming device 4 is at least four. The number of positioning drive rollers 41 used in a single-group forming device 4 is at least three, and the number of positioning drive rollers 41 used in a symmetrically arranged forming device 4 is at least six.

[0024] Specifically, at least two heating rollers 31 are used in a group, and the outer side of one heating roller 31 in any group is connected to an external power device, and the rotation speed of the heating rollers 31 in the group can be adjusted.

[0025] When in use, a group of two heating rollers 31 can choose to open and close the internal heating core according to the number of heating surfaces. For example, a single group of heating rollers 31 in contact with the outer layer 21 (taken as an example in the figure) turns on the bottom heating core and turns off the top heating core, and so on. The switch of the heating core is adjusted according to the required heating surface and heating temperature. The heating core is a heating method such as a resistance heating wire. In addition to the resistance wire, it can also be heated by circulating heat transfer oil. The heating roller 31 is heated by the heat-conducting medium in the gap between the heating core and the heating roller 31. The center of the heating roller 31 is hollow, and the shafts on both sides are also through. It is an external power equipment transmission type. The gear meshing outer wall can realize parallel axis power transmission. Therefore, it does not affect the fixed use of various fixed heating cores and does not affect the rotation of the external heating roller 31.

[0026] The outer wall of each heating roller 31 is provided with a thermocouple to monitor the outer wall temperature of the heating roller 31 in real time.

[0027] When in use, two adjacent groups of heating rollers 31 are installed in close proximity. Except for the gap reserved for transmitting the stone paper 2, the adjacent heating rollers 31 are preferably installed in a close proximity transmission manner. The combination of the two cylindrical coaxial selection methods can reduce the central bending effect of the large-span circular roller structure affected by gravity without affecting the rotation of the adjacent heating rollers 31. Similarly, the outermost support rollers 32 arranged at the top and bottom of the heating rollers 31 are also used to support the problem of circular roller axial bending. The diameter of the support roller 32 without other functions is larger than the diameter of the heating roller 31. The thickness of the material is used to improve the overall rigidity to ensure the stability of its own coaxial bending, while assisting other heating rollers 31 to ensure concentricity / The outer wall of the heating roller 31 is finely ground and polished to prevent sticking or is coated with an anti-sticking coating to prevent the paper layer from sticking and falling off.

[0028] Specifically, at least two sets of fixing plates 11 are used and are symmetrically arranged. Figure 4 The middle viewing angle is used as the main view to determine the up, down, left, and right directions. In actual use, there are two ways to install the fixing plate 11: One is that the horizontal axis direction of the fixed plate 11 is used in an inclined manner, and the support angle of the fixed plate 11 can be determined according to the bending support effect of the middle corrugated layer 22 and the distance from the last set of heating rollers 31 to the entrance position of the forming device 4; The second way to use it is to Figure 4Taking the viewing angle as an example, the whole is rotated 90° counterclockwise, with the forming device 4 located at the bottom and the processing roller 3 located at the top, which is installed perpendicular to the ground. This ensures that the outer layer 21 and the inner layer 23 as well as the corrugated layer 22 on both sides can be synchronously and symmetrically moved vertically downward to meet at the minimum gap of the mold closing belt 43, ensuring the accuracy of the docking of the two sides.

[0029] The second method is more similar to the production method in the figure, that is, the direction of the peaks and valleys of the corrugated layer 22 is the same as the direction of the processing roller 3, except that (with Figure 1-3 For example, each paper layer of the stone paper 2 is horizontally rotated 90°, and the crest and trough direction of the corrugated layer 22 is perpendicular to the axial direction of the processing roller 3. Since the axial direction of the crest and trough of the corrugated paper has a certain supporting force, it is more suitable for the first method of use.

[0030] A baffle is provided on the outer side of the processing roller 3 and on the inner side of the fixed plate 11 , and the inner surface of the baffle is in contact with the edge of one side of all the paper layers constituting the stone paper 2 .

[0031] The purpose of setting the baffle is to integrate the edges of each paper layer, and when the fixing strip 44 determines that the left and right molds are neatly closed (with Figure 4 The baffle aligns the front and back directions of each paper layer to ensure the final production accuracy.

[0032] After the production of the forming device 4 of each set of equipment is completed, the processing thickness is fixed, and the various parameters are set. The trajectory of the mold closing belt 43 is determined, and the signal receivers can be evenly distributed on the inner surface of the fixed plate 11 according to the running trajectory of the mold closing belt 43. After the baffle 45 is pressed, that is, the outer layer 21 or the inner layer 23 or other paper layers contact the baffle 45, the equipment recognizes that the paper layer is docked and aligned with the forming device 4. After the alignment, the signal transmitter on one side of the fixed strip 44 is instantly turned on to irradiate several signal receivers on the outside. The only one that receives the signal or the one with the strongest signal among several signal receivers is fed back to the background algorithm. Finally, after the equipment recognizes the alignment, the transmission speeds of all drive rollers are synchronized to achieve a smooth mold closing effect.

[0033] The sum of the thicknesses of the two fixing strips 44 is equal to the thickness of the final formed stone-based paper, and the thickness of the fixing strip 44 at the bottom is greater than that of the fixing strip 44 at the top. The fixing strip 44 with a larger thickness on one side is used to synchronously contact the corrugated layer 22 and the inner layer 23, and the fixing strip 44 with a smaller thickness on the other side is directly used to contact the outer layer 21 at the top, thereby achieving a synchronous effect.

[0034] The signal transmitter and the signal receiver preferably use a laser or infrared light transmitter and a matching receiver as identification sensors, or a wireless or acoustic wave sensor and a matching receiver as a signal transmission system. The main function of the system is to identify whether different paper layers are synchronously pushed against the trigger baffle 45, thereby ensuring the synchronization effect.

[0035] A preparation method based on stone paperboard production equipment, comprising the following steps: Step A: Paper preparation: Calcium carbonate powder, polymer material powder, modifier, additive and characteristic auxiliary agent are mixed to prepare at least three different stone-based papers including outer layer 21, corrugated layer 22 and inner layer 23, and the papers are directly extruded and injection molded according to preset sizes; Step B: Equipment loading: Before production, all equipment needs to be started, the rotation speed of each roller needs to be adjusted, and the heating core needs to be preheated to preheat the heating roller 31 that needs to be in contact with the heating surface, and then the produced outer layer 21, corrugated layer 22 and inner layer 23 are input into the inner of the corresponding group of heating rollers 31 in the processing roller 3 through a conveyor belt with baffles in a synchronous order. side; Step C: transmission heating, adjusting the temperature of the heating core so that the heating temperature of the heating core is transmitted to the outer wall temperature of the heating roller 31, which is 5-20°C higher than the melting temperature of the corresponding paper layer in contact; Step D: bending and closing the mold, the heated outer layer 21, the corrugated layer 22 and the inner layer 23 are transferred from one side of the processing roller 3 to one side of the forming device 4, the outer layer 21 and the inner layer 23 are bent inward to meet the corrugated layer 22, and the heated surfaces are pressed and shaped by the symmetrical double-layer closing belt 43; Step E: cooling and stacking, after walking from the inside to the outside of the forming device 4, the stone carton board is composited as a whole, cooled by the cooling fan arranged on the outside of the frame 1, and finally stacked, and the preparation is completed.

[0036] In step D, a single set of heating rollers 31 can be adjusted individually. Before mold closing, the outer layer 21 and the inner layer 23 will respectively hit the outer surface of the baffle 45. After the baffle 45 is triggered by contact, the contact switch is turned on, activating the signal transmitter to transmit a signal to the receiving device outside the device. The device compares the signal receiving position trajectory record with the mechanical rotation transmission mold closing belt position record to determine whether the contact position of the outer layer 21 and the inner layer 23 with the fixed strip 44 meets the preset position inside the device. If so, the synchronous rotation mold closing operation continues. If not, the paper layer that contacts the baffle 45 is adjusted to run forward to the synchronous position before the mold closing operation is performed to ensure the edge neatness of the finished stone carton sheet formed after mold closing.

[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A stone carton production device, comprising a frame (1) and a power device assembled outside the frame (1), characterized in that: A processing roller (3) is installed on one side of the frame (1), the interior of the processing roller (3) clamps and conveys the stone paper (2), and a forming device (4) is installed on the other side of the frame (1); the processing roller (3) includes a heating roller (31), and the heating roller (31) is divided into a plurality of groups and is vertically installed on the inner side of the frame (1); the heating roller (31) is a rotating hollow roller, which rotates through bearing seats on both sides and an external power device, and a heating core is coaxially installed at the center of the heating roller (31), and the heating core heats the outer wall of the heating roller (31) by heat conduction, and the outer surface of the paper layer contacts the adhesive surface of the stone paper (2) to heat the stone paper (2); the stone paper (2) includes a plurality of paper layers, and the outer surface of the paper layer contacts the heating roller (31) ) is heated in contact with the outer surface of the frame (1) to form an adhesive layer in a molten state on the outside; the molding device (4) comprises a positioning drive roller (41), the positioning drive roller (41) is fixed to the outer surface of the frame (1) through a bearing seat, the inner side of the positioning drive roller (41) is located on the outer surface of the frame (1) and is equipped with a driven adjustment roller (42), the outer sleeve of the positioning drive roller (41) and the driven adjustment roller (42) is equipped with a mold clamping belt (43); the outside of the mold clamping belt (43) is fixed with a fixing strip (44), the axis of the fixing strip (44) is equipped with a signal transmitter, the outer side of the fixing strip (44) is equipped with a contact switch, and the outer trigger point of the contact switch is equipped with a baffle (45).

2. The stone carton production equipment according to claim 1, characterized in that: The frame (1) comprises a fixing plate (11), and a first strip hole (13) and a second strip hole (14) are provided on the outer side of the fixing plate (11), wherein the first strip hole (13) is used for positioning the forming device (4), and the second strip hole (14) is used for positioning the heating roller (31).

3. The stone carton production equipment according to claim 1 is characterized by: A mounting hole (12) is provided on the outer side of the fixing plate (11).

4. The stone carton production equipment according to claim 1, characterized in that: The stone paper (2) comprises an outer layer (21), a corrugated paper layer (22) and an inner layer (23), and the outer sides of the outer layer (21), the corrugated paper (22) and the inner layer (23) are clamped on the inner side of a heating roller (31).

5. The stone carton production equipment according to claim 1, characterized in that: Both ends of the positioning drive roller (41) and the driven adjustment roller (42) are equipped with bearing seats. The positioning drive roller (41) and the driven adjustment roller (42) are rotatably assembled with the bearing seats. The bearing seats are clamped and fixed on the outer walls on both sides of the opening of the second strip hole (14), and at least one group of the positioning drive rollers (41) is connected to an external power device.

6. The stone carton production equipment according to claim 1, characterized in that: At least two of the heating rollers (31) are used in a group, and the outer side of one heating roller (31) in any group is connected to an external power device, and the rotation speed of the heating rollers (31) in the group can be adjusted.

7. The stone carton production equipment according to claim 1, characterized in that: The number of the fixing plates (11) used is at least two sets and they are symmetrically arranged.

8. The stone carton production equipment according to claim 1, characterized in that: A baffle is provided on the outer side of the processing roller (3) and on the inner side of the fixed plate (11), and the inner surface of the baffle is in contact with the edge of one side of all the paper layers constituting the stone paper (2).

9. A method for preparing a stone carton production device according to any one of claims 1 to 7, comprising the following steps: Step A: Paper preparation: Calcium carbonate powder, polymer material powder, modifier, additive and property auxiliary agent are mixed to prepare at least three different stone-based papers, namely, an outer layer (21), a corrugated layer (22) and an inner layer (23), and the papers are directly extruded and injection molded according to preset sizes; Step B: Equipment loading: Before production, all equipment needs to be started, the rotation speed of each roller needs to be adjusted, and the heating core needs to be preheated to preheat the heating roller (31) that needs to be in contact with the heating surface, and then the produced outer layer (21), corrugated layer (22) and inner layer (23) are input into the inner side of the corresponding group of heating rollers (31) in the processing roller (3) through a conveyor belt with a baffle in a synchronous sequence; Step C: Conveyor heating: the heating roller (31) is adjusted to the inner side of the processing roller (3) and the outer layer (21), corrugated layer (22) and inner layer (23) are input into the inner side of the corresponding group of heating rollers (31) in the processing roller (3) in a synchronous sequence; Step C: Conveyor heating: the heating roller (31) is adjusted to the inner side of the processing roller (3) and the outer layer (21), corrugated layer (22) and inner layer (23) are input into the processing roller (3) and the inner side of ... are input into the processing roller (3) and the inner side of The temperature of the hot core is such that the temperature of the outer wall of the heating roller (31) transmitted by the heating core is greater than the melting temperature of the corresponding paper layer by 5-20°C; step D: bending and closing the mold, the heated outer layer (21), corrugated layer (22) and inner layer (23) are transferred from one side of the processing roller (3) to one side of the forming device (4), the outer layer (21) and the inner layer (23) are bent inward to meet the corrugated layer (22), and the heated surfaces are pressed and shaped by a symmetrical double-layer closing belt (43); step E: cooling and stacking, after moving from the inside to the outside of the forming device (4), the stone carton board is composited as a whole, cooled by a cooling fan arranged on the outside of the frame (1) and finally stacked, and the preparation is completed.

10. A method for preparing a stone carton production device according to claim 9, characterized in that: In step D, a single set of heating rollers (31) can be adjusted individually. Before mold closing, the outer layer (21) and the inner layer (23) will respectively press against the outer surface of the baffle (45). After the baffle (45) is triggered by contact, the contact switch is turned on, activating the signal transmitter to transmit a signal to a receiving device outside the device. The device compares the signal receiving position trajectory record with the mechanical rotation transmission mold closing belt position record to determine whether the contact position of the outer layer (21) and the inner layer (23) with the fixed strip (44) meets the preset position inside the device. If it meets, the mold closing operation of synchronous rotation continues. If it does not meet, the paper layer that contacts the baffle (45) is adjusted to move forward to the synchronous position before the mold closing operation is performed to ensure the edge uniformity of the finished stone carton sheet formed after mold closing.

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