Plate pressing mechanism and plate pressing device

Abstract

The utility model discloses a plate pressing mechanism and a plate pressing device. The plate pressing mechanism comprises an upper cover, an inner framework is arranged in the upper cover, and the inner framework ascends and descends through a first driving device; a pressing roller is arranged on the inner framework and transversely moves on the inner framework through a second driving device. The first driving device comprises a lifting arm with the bottom end connected with the inner framework, the top end of the lifting arm is in transmission with a transmission shaft, and the transmission shaft is in transmission connection with the first driving part. The second driving device comprises a third driving part, the driving end of the third driving part is in transmission connection with the transmission box, and the transmission box drives the pressing roller to transversely move in a reciprocating mode through a transmission assembly. The number of the pressing rollers is 1-3, and the pressing rollers can move in a reciprocating mode in the transverse direction and press materials downwards, so that the pressing purpose of rolling is achieved. After the number of the pressing rollers is reduced, the unit contact area of the pressing rollers and materials is reduced, pressure is larger, and pressed plates are denser. And the first driving device can be driven by a smaller oil cylinder, so that the structural complexity of the equipment is simplified, and the cost is lower.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of board pressing equipment, specifically relates to a board pressing mechanism for artificial stone and board pressing device. BACKGROUND

[0002] In prior art, the application range of artificial quartz stone panel is very wide, and it is commonly used to make the countertop of cabinet, the countertop made of quartz stone material has no radioactive elements harmful to human body on the basis of high hardness, high temperature resistance, acid and alkali resistance, impact resistance and easy cleaning, and is deeply welcomed by people. When making the quartz stone countertop, the mixed fine powder material is uniformly spread in the mold, and then the pressure machine is used for pressing and forming, and the artificial stone plate can be sawn according to the corresponding product specifications.

[0003] The utility model patents with publication numbers CN208263486U, CN208527283U and CN210617346U are all the forming equipment used by the present applicant, and the effects are relatively obvious, but the structures of the above-mentioned patents are relatively complex, and the cost is relatively high. UTILITY MODEL CONTENT

[0004] The utility model aims at solving the technical problem of complex structure in prior art, and provides a board pressing mechanism and a board pressing device to change the current deficiency.

[0005] In order to achieve the above-mentioned purpose, on one hand, the utility model provides a board pressing mechanism, which comprises an upper cover.

[0006] An inner framework located above the material is arranged in the upper cover, and the inner framework is driven to move up and down in the height direction by a first driving device.

[0007] At least one compression roller for pressing the material is arranged on the inner framework, and the compression roller is driven to move horizontally on the inner framework by a second driving device.

[0008] As a preferred, the first driving device is at least one driving oil cylinder or at least one elevator, and the inner framework is driven to move up and down by the driving arm of the driving oil cylinder or the elevator.

[0009] As a preferred, the first driving device comprises a lifting arm connected with the inner framework at the bottom end, the top end of the lifting arm is driven by the gear one on the transmission shaft through the gear one on one side of the lifting arm, and the transmission shaft is in driving connection with a driving part one.

[0010] As a preferred, the driving part one is a driving motor or a hydraulic motor.

[0011] As preferred, the driving member one comprises a driving arm, which is in meshing transmission with a gear two provided on the transmission shaft through a rack portion one on one side of the driving arm; one end of the driving arm is driven to move reciprocatingly in the axial direction under the driving of the driving member two.

[0012] As preferred, the driving member two is a driving oil cylinder, a driving motor or a hydraulic motor.

[0013] As preferred, the top end of the lifting arm is provided with a limiting pulley one which is attached to the side of the rack portion one.

[0014] As preferred, the second driving device comprises a driving member three, the driving end of the driving member three is in transmission connection with the power input end of a transmission box provided on one end of the inner frame through a linkage member, and the power output end of the transmission box drives the compression roller to move reciprocatingly in the transverse direction through a transmission assembly.

[0015] As preferred, the linkage member is a spline sleeve, one end of the spline sleeve is in meshing transmission with the spline teeth of the driving end of the driving member three, and the other end is in meshing transmission with the spline teeth of the power input end of the transmission box, and the driving end of the driving member three and the power input end of the transmission box are in mutual coaxial spacing correspondence.

[0016] As preferred, the transmission assembly is a transmission belt or a transmission chain, one end of the transmission belt or the transmission chain is in transmission connection with the power output end of the transmission box, and the other end is connected with a driven wheel on the inner frame; the transmission belt or the transmission chain is fixedly connected with a moving seat on the compression roller.

[0017] As preferred, the transmission assembly is a transmission screw, one end of the transmission screw is in transmission connection with the power output end of the transmission box, and the other end is in transmission connection with the inner frame; the transmission screw is in transmission connection with the moving seat on the compression roller.

[0018] As preferred, a plurality of pulleys are provided on the moving seat, and the pulleys are in sliding connection with the slide rails provided on the inner frame.

[0019] As preferred, the driving member three is a driving motor or a hydraulic motor.

[0020] As preferred, the upper cover is provided with a limiting pulley two which is attached to the inner frame axially at both ends.

[0021] As preferred, a flexible cushion layer is provided below the compression roller at the bottom notch of the upper cover.

[0022] In another aspect, the utility model provides a kind of plate pressing device, including pressing pedestal, the upper side of the pressing pedestal is equipped with above-mentioned plate pressing mechanism, the upper cover in the plate pressing mechanism is moved by drive piece four orientation towards the pressing pedestal direction or away from the pressing pedestal direction movement.

[0023] Since the above technical solution is used, the beneficial effects of the utility model are:

[0024] The pressing roller is 1-3, is moved reciprocatingly in transverse direction by the second driving device, and is pressed downward under the drive of the first driving device Material realizes the pressing purpose of rolling. After the number of pressing roller is reduced, the unit contact area with material is reduced, compared with the structure of many pressing rollers in the past, the pressure is greater, and the pressed plate is more compact.

[0025] The first driving device can be driven by smaller oil cylinder, which simplifies the structural complexity of the equipment, is lower in cost and more convenient to maintain. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 It is the structure schematic front view of the plate pressing device of the utility model;

[0027] Figure 2 It is the structure schematic plan view of the plate pressing mechanism of the utility model;

[0028] Figure 3 It is the structure schematic left view of the plate pressing mechanism of the utility model;

[0029] Figure 4 It is the structure schematic three-dimensional partial sectional view of the plate pressing mechanism of the utility model;

[0030] Figure 5 It is the structure schematic front partial sectional view of the plate pressing mechanism of the utility model Figure 1 ;

[0031] Figure 6 It is the structure schematic front partial sectional view of the plate pressing mechanism of the utility model Figure 2 ;

[0032] Figure 7 It is the structure schematic three-dimensional of the inner framework in the utility model Figure 1 ;

[0033] Figure 8 It is the structure schematic three-dimensional of the inner framework in the utility model Figure 2 ;

[0034] Figure 9 It is the structure schematic three-dimensional of the inner framework in the utility model Figure 3 ;

[0035] Figure 10 is partial structure schematic solid one of the board pressing mechanism of the utility model;

[0036] Figure 11 is partial structure schematic solid two of the board pressing mechanism of the utility model;

[0037] Figure 12 is structure schematic front view of the second driving device in the utility model;

[0038] Figure 13 is structure schematic of the transmission case in the utility model Figure 1 .

[0039] Figure 14 is change state structure schematic view of Figure 13 .

[0040] Figure 15 is structure schematic of the transmission case in the utility model Figure 2 .

[0041] In the figure:

[0042] 100, pressing base 101, driving piece four;

[0043] 200, upper cover 201, limit pulley two 202, flexible cushion layer;

[0044] 300, first driving device 301, driving arm 3011 rack part two 302, driving piece two 303, lifting arm 3031, rack part one 304, gear one 305, transmission shaft 306, gear two 307, limit pulley one 308, driving piece one;

[0045] 400, second driving device 401, linkage 402, driving end 403, driving piece three;

[0046] 500, inner framework 501, compression roller 502, moving seat 503, slide rail 504, pulley 505, transmission assembly 506, driven wheel;

[0047] 6, material;

[0048] 700, transmission case 701, power input end 702, bevel gear 703, power output end. DETAILED DESCRIPTION

[0049] In order to make the technical problem, technical scheme and beneficial effect solved by the utility model more clearly, the following is combined with Figures 1 to 15 And embodiment, the utility model is further explained in detail.It should be understood that the specific embodiments described here are only used to explain the utility model, and are not used to limit the utility model.

[0050] Embodiment One

[0051] With reference to Figures 1 to 15 The utility model discloses a plate pressing mechanism, including the upper cover 200, it is the top surface and the periphery surface closed, the bottom surface is the structure of the notch, can cover the material 6 under, this structure and prior art equipment have no substantial difference.

[0052] In order to improve the yield of single processing, its length can be customized different length, so that the pressed plate is longer and larger, can be divided into multiple small plates after cutting later.

[0053] The upper cover 200 is equipped with the inner framework 500 in the material 6, and the inner framework 500 is mainly used for pressing purposes, and the overall support strength is high. Figure 5 And Figure 6 As can be seen, the size specification is adapted to the size specification of the material. The inner framework 500 moves up and down in the height direction (i.e. Figure 5 The arrowhead) by the first driving device 300. That is to say, the inner framework 500 is not directly connected with the upper cover 200, but moves up and down in the upper cover 200. When the inner framework 500 moves downward, it gradually approaches the material 6. Conversely, it gradually moves away from the material 6, so as to realize the control of the material pressure.

[0054] In the embodiment, at least one pressure roller 501 for pressing the material 6 is arranged on the inner framework 500, and one or two pressure rollers 501 can be arranged in practice, but too many pressure rollers 501 are not suitable, otherwise the surface of the plate will appear undulating. The axial length of the pressure roller 501 is adapted to the width of the material 6. The pressure roller 501 moves in the inner framework 500 by the second driving device 400, and the rolling distance of the pressure roller 501 is consistent with the length of the material.

[0055] That is to say, the pressure roller 501 rolls in the length direction of the material (i.e. Figure 5 The arrowhead) under the driving of the second driving device 400, and the rolling distance of the pressure roller 501 is longer than before, which is similar to the operation of rolling dough in life.

[0056] The reason for setting one or two compression rollers 501 is that under the same pressure parameters, the reduction in the number of compression rollers 501 is equivalent to reducing the unit contact area thereof with the material 6, so that the smaller the unit contact area, the greater the force acting on the material. The previous structure is that a plurality of compression rollers apply force downward, the unit contact area with the material is large, and the downward force is dispersed, thereby affecting the pressing effect, and the board material appears to be pressed and dense on the surface, but loose on the bottom. In order to improve the strength and quality of the board material, the amount of adhesive is usually increased to improve the strength of the board material, but the adhesive is expensive and the amount is large, thereby increasing the cost of the board material.

[0057] The compression roller 501 in the embodiment reciprocally rolls along the length direction of the material 6 shown in the figure, the reciprocating distance is long, the material 6 can be fully and effectively pressed repeatedly, and the pressing force acting on the surface of the material is uniform. The previous structure of a plurality of compression rollers has a very limited moving distance during pressing, which is short distance rolling. After pressing, the surface of the board material has a wavy small fluctuation, and additional planing and polishing treatment is required, which not only increases the process and is low in efficiency, but also causes waste of the board material and affects the market competitiveness of the product.

[0058] As a further description of the embodiment, the first driving device 300 is at least one driving oil cylinder or at least one elevator, and the inner frame 500 is lifted under the driving of the power arm of the driving oil cylinder or the elevator. It is arranged outside the upper cover 200, and is arranged outside for the convenience of vacuum pressing in the upper cover 200. If it is placed inside, the driving oil cylinder is easily damaged under vacuum state and is difficult to use normally. Of course, the position where the power arm penetrates the upper cover 200 also needs to be sealed to ensure the internal vacuum effect during operation.

[0059] The elevator can be a worm gear screw elevator, and the number and position of the worm gear screw can be determined according to the size of the equipment. It is economical and convenient to operate and maintain, and can be used for heavy load operation requirements.

[0060] The structure is a common driving oil cylinder power supply mode, which has a high cost and a high overall height of the equipment, and the number thereof can be increased or decreased according to the size of the equipment.

[0061] In the embodiment, the second driving device 400 includes a driving member three 403 (which can be a driving motor or a hydraulic motor), and the number thereof can also be increased or decreased according to the size of the equipment, and it is also arranged outside the upper cover 200. It is arranged outside for the convenience of vacuum pressing in the upper cover 200. If it is placed inside, it is easily damaged under vacuum state.

[0062] The driving end 402 of the driving member three 403 is connected with the power input end 701 of the transmission box 700 through the linkage member 401 (the driving end 402 is vertically downward in the figure), and the connection between the linkage member 401 and the upper cover 200 also needs to have a good sealing effect. When the upper cover 200 is attached to the pressing base 100 to form a closed space, a vacuum state is achieved.

[0063] Reference Figures 13 to 15 In order to better observe, the inner skeleton 500 is not shown in the figure. The driving end 402 of the driving member three 403 is coaxially spaced with the power input end 701 of the transmission box 700. The coaxial spacing is used to ensure uninterrupted transmission when the height direction is close or away. That is, the power output end 703 of the transmission box 700 can move axially up and down with the inner skeleton 500 towards or away from the driving end 402, and the continuity of transmission is also ensured.

[0064] The power output end 703 of the transmission box 700 drives the compression roller 501 to move reciprocatingly in the transverse direction, that is, the compression roller 501 reciprocatingly rolls on the material 6.

[0065] As a further improvement of the embodiment, the linkage member 401 is a spline sleeve, one end of which is in meshing transmission with the spline teeth of the driving end 402 of the driving member three 403, and the other end is in meshing transmission with the spline teeth of the power input end 701 of the transmission box 700.

[0066] Of course, a coupler or other structure similar to the spline sleeve can also be used instead. The driving member three 403 is arranged vertically downward, which is used to realize the continuity of transmission while the inner skeleton 500 is lifted and lowered. If the driving member three 403 is arranged transversely on the side of the upper cover 200, it needs to be lifted and lowered with the upper cover 200 and the inner skeleton 500, and the closed structure is very difficult to achieve.

[0067] The vertical arrangement can fix the driving member three 403 only on the outside of the upper cover 200, and the spline sleeve can realize uninterrupted transmission while lifting and lowering.

[0068] In the embodiment, the upper cover 200 is provided with a limiting pulley two 201 corresponding to the axial ends of the inner skeleton 500. This structure can prevent the inner skeleton 500 from being displaced in the transverse direction during the pressing process, and ensure that the inner skeleton 500 is not moved in the horizontal direction. When the inner skeleton 500 is lifted and lowered, the connection effect of the rolling friction is improved, and the lifting and lowering is more smooth. Figure 5For example, when the roller 501 is rolled to the right, the inner skeleton 500 will generate a certain counteractive force. Since the inner skeleton 500 is not in contact with the upper cover 200 and is connected with the power arm, it is difficult to form a stable support effect in the horizontal direction, so the limiting pulley two 201 can limit the inner skeleton 500 in the horizontal direction to prevent it from shifting to the left or right. At the same time, it can also improve the smooth rolling friction connection when the inner skeleton 500 is lifted.

[0069] Reference Figure 6 In order to better press, the bottom gap of the upper cover 200 is provided with a flexible pad layer 202 located below the roller 501, which can form an isolation layer (or isolation film) between the roller 501 and the material 6, preventing the surface of the roller 501 from directly contacting the material 6 and sticking. It has a certain flexibility and will deform when the roller 501 is pressed. Conversely, it will also recover under the action of its own flexibility.

[0070] Of course, the flexible pad layer 202 can not be set, but a separate isolation layer needs to be attached to the surface of the material 6. Alternatively, both the flexible pad layer 202 and the separate isolation layer can be set, both of which are to prevent the material 6 from adhering to the surface of the roller 501, so that the surface of the pressed plate is not pitted and is more flat.

[0071] Embodiment two

[0072] The purpose of this embodiment is to provide another driving mode for the first driving device 300.

[0073] In addition to the above structure, the first driving device 300 includes a lifting arm 303 connected to the inner skeleton 500 at the bottom end, penetrating the upper cover 200, with one end protruding outside the upper cover and the other end inside the upper cover, and the connection needs to achieve a sealing effect. Of course, the number of lifting arms 303 can also be increased or decreased according to the overall size of the equipment, Figure 10 Two are provided. The top end of the lifting arm 303 is in meshing transmission with the gear one 304 on the transmission shaft 305 through the rack part one 3031 on one side of the lifting arm 303, the transmission shaft 305 is in transmission connection with the driving part one 308, and the driving part one is a driving motor or a hydraulic motor.

[0074] This structure does not use a common driving oil cylinder as power, but uses a motor or a hydraulic motor to improve power. Taking the motor as an example, the lifting range of the inner skeleton 500 is very limited during the pressing process, so it is relatively inconvenient to use an oil cylinder. The horizontally arranged motor saves space and reduces cost.

[0075] The specific number of this structure also needs to be increased or decreased according to the overall size of the equipment. A small-sized equipment can be provided with one such structure, such as Figure 11 .

[0076] As preferred, the top end of the lifting arm 303 is provided with a limiting pulley 307 on the side away from the rack part 3031, which can limit and support the lifting arm 303 to ensure its axial lifting and downward movement, and together with the gear 304, realize the effect of opposite clamping and limiting to prevent the bending deformation of the lifting arm 303. Of course, it can be a fixed pulley or a movable pulley, which is connected with the upper cover 200. When it is a fixed pulley, the lifting arm 303 rolls and rubs with it, and the lifting movement is smooth. When it is a movable pulley, the effect of rolling and rubbing can also be realized.

[0077] Embodiment three

[0078] The purpose of this embodiment is to provide another driving mode on the basis of embodiment two, that is, it can be used for a first driving device 300 or for multiple first driving devices 300 to be used synchronously.

[0079] In addition, when the size of the plate is increased, the number of lifting arms 303 can also be increased to realize this, and multiple lifting arms 303 do not need to be provided with motors separately, and the following structure can be used to realize synchronous lifting action.

[0080] Specifically, the driving member one includes a driving arm 301, which can penetrate through multiple first driving devices 300, and the rack part two 3011 on one side (i.e. the top side) of the driving arm 301 is in meshing transmission with the gear two 306 provided on the transmission shaft 305, and one end of the driving arm 301 is driven by the driving member two 302 to move axially reciprocatingly, so that the effect of synchronous transmission of multiple transmission shafts 305 can be realized, which is suitable for large-scale equipment. Figure 4

[0081] In the above structure, the driving member two 302 is a driving oil cylinder, a driving motor or a hydraulic motor. Taking the driving oil cylinder as an example, this structure can realize the horizontal placement of the driving oil cylinder instead of the vertical placement. The horizontal driving oil cylinder pushes the driving arm 301 to move axially reciprocatingly in the horizontal direction, and then the transmission between the gear and the transmission shaft 305 is used to realize the lifting action of the lifting arm 303. Smaller driving oil cylinder can be used, the cost is lower, and the space is saved. Moreover, this structure is a simple and reliable mechanical transmission mode, which runs more stably, has low failure rate, and is suitable for small-amplitude lifting action.

[0082] Embodiment four

[0083] This embodiment provides a transmission assembly 505 of a structure on the basis of embodiment one.

[0084] ​As preferred, the transmission assembly 505 is a transmission belt or a transmission chain, one end of the transmission belt or the transmission chain is in transmission connection with the power output end 703 of the transmission box 700; a belt pulley or a chain wheel can be connected on the power output end 703. The other end is connected with the driven wheel 506 (which can be a belt pulley or a chain wheel) on the inner frame 500; the transmission belt or the transmission chain is fixedly connected with the moving seat 502 on the compression roller 501. When the transmission belt or the transmission chain is driven, the moving seat 502 can be driven to move horizontally and reciprocatingly.

[0085] The transmission belt or the transmission chain can be provided with one or more, which is determined according to the size specification of the equipment. In practice, the transmission belt is selected to have the advantages of low cost and low noise in operation. The transmission chain has the advantage of high strength, but the running noise is larger, which can be selected according to the actual needs.

[0086] As preferred, the moving seat 502 is provided with a plurality of pulleys 503, and the pulleys 503 are in sliding connection with the slide rails 504 provided on the inner frame 500. This structure makes the compression roller 501 more smooth when rolling, and has smaller resistance.

[0087] Example five

[0088] This embodiment provides another structure of the transmission assembly 505 on the basis of the embodiment one.

[0089] As preferred, the transmission assembly 505 is a transmission screw, one end of the transmission screw is in transmission connection with the power output end 703 of the transmission box 700, and the other end is in rotation connection with the inner frame 500; the transmission screw is in screw connection with the moving seat 502 on the compression roller 501. When the transmission screw is axially rotated, the moving seat 502 can be driven to move horizontally, and then the compression roller 501 realizes the rolling of the material, and the number of the transmission screw can be self-determined according to the needs.

[0090] Of course, the transmission screw can be selected as a one-way transmission screw, so that the driving member realizes the reciprocating movement of the compression roller 501 through forward and reverse rotation. The bidirectional transmission screw can also be selected, and the compression roller 501 can realize the bidirectional linear reciprocating movement, which can be selected according to the needs.

[0091] As preferred, the moving seat 502 is provided with a plurality of pulleys 503, and the pulleys 503 are in sliding connection with the slide rails 504 provided on the inner frame 500. This structure makes the compression roller 501 more smooth when rolling, and has smaller resistance.

[0092] Example six

[0093] Reference Figure 1The utility model provides a kind of plate pressing device, including pressing base 100, the upper side of the pressing base 100 is equipped with above-mentioned plate pressing mechanism, the upper cover 200 in the plate pressing mechanism moves towards the pressing base 100 direction or moves away from the pressing base 100 direction (i.e. Figure 5 Material 6 can be enclosed in the upper cover 200 and the pressing base 100 together.

[0094] In addition, it should be noted that, in addition to the driving piece four 101 to drive the upper cover 200 to move up and down, it can also be used with the first driving device 300 to press the material 6. That is, the two together use the lifting action to realize certain pressing effect on the material 6, because the first driving device 300 is arranged on the upper cover 200.

[0095] Working principle:

[0096] Material 6 first covers a layer of film on the surface of the mold. It can be automatically conveyed by the conveying belt arranged on the pressing base 100, or it can be manually pushed. When the material is below the upper cover 200, the upper cover 200 moves downward under the action of the driving piece four 101 and finally adheres to the pressing base 100 to realize sealing. Then start the vacuum pump, and use the pipeline to vacuum the internal space enclosed by the upper cover 200 and the pressing base 100. The gas in the material 6 is completely discharged, so that the pressed plate has no pores, which is also a conventional step.

[0097] The first driving device 300 and the second driving device 400 act synchronously, so that the inner skeleton 500 moves downward to apply pressure, and the compression roller 501 rolls horizontally in the transverse direction. The rolling distance is the length of the mold. This operation is similar to the operation of rolling dough in life. The number of compression rollers 501 can be 1-3. The smaller the number, the greater the pressure per unit contact area. Combined with long-distance rolling, the material can be fully pressed, which is completely different from the short-distance pressing of many compression rollers or the whole-face pressing of the pressing plate in the past. The pressing effect is better, and at least 10% of the adhesive can be saved. The surface of the pressed plate is not undulating, and it does not need to be planed, which saves waste and improves work efficiency. The overall structure is also more simple and reasonable, and fewer oil cylinders are used.

[0098] Due to the adoption of the above technical scheme, the utility model has the beneficial effects that:

[0099] The pressing roller adopts 1-3, which moves reciprocally in the transverse direction by the second driving device, and presses the material downward under the drive of the first driving device, to realize the purpose of rolling pressing. After reducing the number of pressing rollers, the unit contact area with the material is reduced, and compared with the structure of many pressing rollers in the past, the pressure is greater, and the pressed plate is more compact.

[0100] The first driving device can be driven by a smaller oil cylinder, so that the structural complexity of the equipment is simplified, the cost is lower, and the maintenance is more convenient.

[0101] Although the utility model has been described above with reference to the embodiments, various improvements can be made and equivalent parts can be replaced without departing from the scope of the utility model. In particular, as long as there is no structural conflict, the features in the embodiments disclosed by the utility model can be combined in any way, and the combinations are not exhaustively described in the specification only for the purpose of omitting the length and saving resources. Therefore, the utility model is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A plate pressing mechanism, comprising an upper cover (200); Characterized in that: An inner framework (500) is arranged in the upper cover (200) above the material (6), and the inner framework (500) is driven by a first driving device (300) to move up and down in the height direction; At least one pressing roller (501) for pressing the material (6) is arranged on the inner framework (500), and the pressing roller (501) is driven by a second driving device (400) to move back and forth in the transverse direction on the inner framework (500).

2. The sheet pressing mechanism according to claim 1, characterized by: The first driving device (300) is at least one driving oil cylinder or elevator, and the inner framework (500) is driven by the power arm of the driving oil cylinder or the elevator to move up and down.

3. The sheet pressing mechanism according to claim 1, characterized by: The first driving device (300) comprises a lifting arm (303) connected to the inner framework (500) at the bottom end, the top end of the lifting arm (303) is in meshing transmission with a gear one (304) on a transmission shaft (305) through a rack part one (3031) on one side of the lifting arm (303), and the transmission shaft (305) and a driving part one (308) are in transmission connection with each other.

4. The sheet pressing mechanism according to claim 3, characterized by: The driving part one (308) comprises a driving arm (301), the driving arm (301) is in meshing transmission with a gear two (306) arranged on the transmission shaft (305) through a rack part two (3011) on one side of the driving arm (301); one end of the driving arm (301) is driven by a driving part two (302) to move back and forth in the axial direction.

5. The plate pressing mechanism according to claim 3 or 4, characterized by: A limit pulley one (307) is arranged on the side away from the rack part one (3031) of the top end of the lifting arm (303) and is attached to the lifting arm (303).

6. The sheet pressing mechanism according to claim 1, characterized by: The second driving device (400) comprises a driving part three (403), a driving end (402) of the driving part three (403) is in transmission connection with a power input end (701) of a transmission box (700) arranged at one end of the inner framework (500) through a linkage part (401), the driving end (402) of the driving part three (403) and the power input end (701) of the transmission box (700) are coaxially spaced apart and correspond to each other; a power output end (703) of the transmission box (700) drives the pressing roller (501) to move back and forth in the transverse direction through a transmission assembly (505).

7. The sheet pressing mechanism according to claim 6, characterized by: The linkage part (401) is a spline sleeve, one end of the spline sleeve is in meshing transmission with the spline teeth of the driving end (402) of the driving part three (403), and the other end is in meshing transmission with the spline teeth of the power input end (701) of the transmission box (700).

8. The sheet pressing mechanism according to claim 7, characterized by: The transmission assembly (505) is a transmission belt or a transmission chain, one end of the transmission belt or the transmission chain is in transmission connection with the power output end (703) of the transmission box (700), and the other end is connected with a driven wheel (506) on the inner framework (500); the transmission belt or the transmission chain is fixedly connected with a moving seat (502) on the pressing roller (501).

9. The sheet pressing mechanism according to claim 7, characterized by: The transmission assembly (505) is a transmission screw, one end of the transmission screw is in transmission connection with the power output end (703) of the transmission box (700), the other end is in rotation connection with the inner frame (500); the transmission screw is in screw connection with the moving seat (502) on the compression roller (501).

10. The plate pressing mechanism according to claim 8 or 9, characterized by: A plurality of pulleys (503) are arranged on the moving seat (502), and the pulleys (503) are in sliding connection with the slide rails (504) arranged on the inner frame (500).

11. The sheet pressing mechanism according to claim 1, characterized by: The upper cover (200) is internally provided with a limiting pulley two (201) corresponding to the axial two ends of the inner frame (500).

12. The sheet pressing mechanism according to claim 1, characterized by: The bottom gap of the upper cover (200) is provided with a flexible cushion layer (202) located below the compression roller (501).

13. A plate pressing device, comprising a pressing base (100), The device is characterized in that: The pressing base (100) is provided with the plate pressing mechanism according to any one of claims 1-12, and the upper cover (200) in the plate pressing mechanism is moved towards or away from the pressing base (100) through the driving member four (101).

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