A paper loading device for rubbings of cliff caves and stele inscriptions

Abstract

The present invention relates to the field of cultural relics protection technology, in particular to a paper-loading device for cliff caves and stele rubbings. The device structure includes a lifting drive mechanism, a stretching mechanism, a base and a lifting plate. The lifting drive mechanism is used for lifting the lifting plate, and is connected to two slide bars on the top of the base to act on the lifting plate at the same time. Through the setting of the pressing and stretching mechanism, the two sides of the rubbing paper are first stretched outwards, so that the generation of longitudinal wrinkles is reduced during the outward stretching process. The pressing and stretching mechanism will also press and smooth the stretched rubbing paper longitudinally at the same time, so that the rubbing paper in contact with the bletilla water can be smoothed before contacting the rubbing object, and the air remaining between the stone wall and the rubbing paper can be longitudinally scraped off, so that the rubbing paper and the rubbing object are in closer contact, which is conducive to the complete rubbing of the rubbing object.

Description

Technical Field

[0001] The invention relates to the field of cultural relics protection, and in particular to a paper feeding device used for rubbings of cliff caves and stele inscriptions. Background Art

[0002] The bas-reliefs, inscriptions and stone tablets in the caves are one of the relics of human culture. They truly record the historical events and religious customs in human life and are important cultural relics for us to protect.

[0003] The prior art discloses invention patents for paper-loading devices for rubbing of some cliff caves and inscriptions. The Chinese patent with application number 202122833428.2 discloses a paper-loading device for rubbing of cave murals, which belongs to the field of cultural relics protection technology, and includes a support platform and two rollers. The left and right sides of the lower surface of the support platform are fixedly connected with moving wheels, and the left and right sides of the upper surface of the support platform are fixedly connected with connecting plates. The paper-loading device for rubbing of cave murals is provided with a first top plate, a first spring, a first positioning rod, a second through hole, a disc, a push rod, a connecting block, a connecting rod, a roller, a clamping block, a second slide groove, a smoothing roller, a pin shaft and a slider.

[0004] The existing rubbing methods for cliff carvings and inscriptions are generally to put on paper manually, or to fix the rubbing paper with a simple device, and then spread the rubbing paper directly on the treated stone wall. Although it can rub bas-reliefs, inscriptions and inscriptions to a certain extent, in the process of spreading the rubbing paper, once the rubbing paper comes into contact with and is soaked in bletilla striata water, it is easy to produce horizontal and vertical wrinkles on the surface of the rubbing paper, and air enters between the object to be rubbed and the rubbing paper to produce bubbles, which will greatly affect the rubbing effect, and may even cause the rubbing to fail and waste the rubbing paper. Summary of the invention

[0005] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a paper feeding device for rubbings of cliff caves and stele inscriptions.

[0006] To achieve the above purpose, the technical solution adopted by the present invention is: a paper loading device for cliff caves and stele rubbings, comprising a base, a plurality of moving wheels are fixed to the bottom of the base, two sliding rods are fixed to the top of the base, the outer rings of the two sliding rods are slidably connected with a lifting plate, a lifting drive mechanism is arranged between the top of the base and the lifting plate, and the lifting drive mechanism is used to drive the lifting plate to rise and fall;

[0007] An adjusting rod is fixed on the top of the two sliding rods, and a clamping mechanism is arranged between the two adjusting rods, and the clamping mechanism is used to fix the top of the paper rubbing;

[0008] A pressing and stretching mechanism is provided on the front side of the lifting plate, and the pressing and stretching mechanism is used to stretch and remove wrinkles and bubbles on the rubbing paper;

[0009] Two L-shaped fixing plates are fixed on the front side of the lifting plate, the pressing and stretching mechanism is located between the two L-shaped fixing plates, a rotating rod is rotatably connected between the two L-shaped fixing plates, a roller is sleeved on the rotating rod, and the roller is located below the pressing and stretching mechanism.

[0010] Preferably, the pressing and stretching mechanism includes two second motors and two fixed seats, the two second motors are fixed to the top of the lifting plate through a mounting plate, the output ends of the two second motors are fixed with cams, the two fixed seats are fixed to the front side of the lifting plate, a sliding rod is fixed between the two fixed seats, the outer wall of the sliding rod is symmetrically slidably connected with a reciprocating plate, a reset spring is fixed between the opposite sides of the two fixed seats and the two adjacent reciprocating plates, the two reset springs are sleeved on the outer wall of the sliding rod, a connecting plate is fixed to the top of the two reciprocating plates, baffles are fixed at the opposite ends of the two connecting plates, and the two baffles respectively cooperate with the adjacent cams, a longitudinal scraping mechanism is provided on the outer wall of the two sliding rods, the longitudinal scraping mechanism is located between the two reciprocating plates, when the lifting plate moves downward, the longitudinal scraping mechanism scrapes off the wrinkles and bubbles generated on the surface of the rubbing paper, and a transverse stretching mechanism is provided on the opposite sides of the two reciprocating plates, when the two reciprocating plates move toward each other, the two transverse stretching mechanisms transversely stretch the two sides of the rubbing paper.

[0011] Preferably, the longitudinal scraping mechanism includes a scraping frame, which is fixed to the outer wall of the sliding rod and located between the two reciprocating plates. A rotating rod is rotatably connected between the two side walls of the scraping frame, a scraping brush is fixed to the outer wall of the rotating rod, and a plurality of connecting springs are commonly fixed between the scraping brush and the inner wall of the scraping frame.

[0012] Preferably, the transverse stretching mechanism includes a rolling frame, which is slidably connected to the side of the reciprocating plate facing the scraping frame, and an avoidance mechanism is arranged between the reciprocating plate and the scraping frame. The avoidance mechanism is used to avoid the rubbing paper when the rolling frame returns to its position, and the interior of the rolling frame is rotatably connected to rollers in a linear array.

[0013] Preferably, the avoidance mechanism includes two avoidance seats and two arc sliding seats and two inclined baffles, the two avoidance seats are respectively fixed to one side of the two reciprocating plates facing the scraping frame, and a tension spring is fixed to one side of the two avoidance seats facing the rolling frame, and one end of the two tension springs facing away from the avoidance seats is fixedly connected to the rolling frame, the two arc sliding seats are respectively fixed to the two ends of the scraping frame, the two inclined baffles are respectively fixed to one side of the two rolling frames facing the arc sliding seat, and a sliding block is fixed to one side of the two inclined baffles facing away from the rolling frame, and a first telescopic rod is fixed to the bottom of the two sliding blocks, and an arc sliding groove is provided on the top of the two arc sliding seats, and the arc sliding groove is an inclined sliding groove, and the height of the arc sliding groove close to one end of the scraping frame is higher than the height close to one end of the reciprocating plate, and the two first telescopic rods slide along the two arc sliding grooves respectively.

[0014] Preferably, a support rod is fixed between the two L-shaped fixing plates, the support rod is located between the rotating rod and the scraping frame, a protective frame is fixed to the outer wall of the support rod, two reciprocating grooves are provided on the top of the protective frame, a sliding plate is slidably connected on the inner wall of the protective frame, a reverse mechanism is provided between the protective frame and the reciprocating plate, the reverse mechanism is used to drive the protective frame and the sliding plate to move in opposite directions, a plurality of through grooves are provided on the front side of the sliding plate, a plurality of reverse scraping seats are provided on the outer ring of the support rod, a rotating groove is provided inside all the reverse scraping seats, the rotating groove is sleeved on the outer ring of the support rod and the upper and lower inner walls are rotatably connected to the upper and lower surfaces of the support rod, the left and right sides of all the reverse scraping seats are a smooth surface and a friction surface respectively, all the reverse scraping seats correspond to all the through grooves one by one, and the bottom of the reverse scraping seat The cam is secured to the bottom of the sliding plate and is engageable with the first and second sliding seats, wherein the first and second sliding seats are engaged with the first and second locking plates, respectively.

[0015] Preferably, the reversing mechanism includes a connecting seat, a first rack and a second rack, the connecting seat is fixed to the bottom of the lifting plate, a support rod is fixed to the side of the connecting seat facing the protective frame, the end of the support rod facing away from the connecting seat is rotatably connected to a gear, the first rack is fixed to the bottom of the reciprocating plate, the second rack is slidably connected to the top of the protective frame, the first rack and the second rack are both meshed with the gear, a pull rod is fixed to the bottom of the second rack, and a connecting plate is fixed to the bottom of the pull rod after passing through the reciprocating groove, and the connecting plate is fixed to the front side of the sliding plate.

[0016] Preferably, a positioning rod is fixed on the side of the two reciprocating plates facing the scraping brush, a pin plate is fixed on the end of the two positioning rods facing away from the reciprocating plates, and a rotating shaft is rotatably connected to the side of the two pin plates facing away from the positioning rods, and both rotating shafts are located between the scraping brush and the rolling frame.

[0017] Preferably, the lifting drive mechanism comprises a first motor, the first motor is fixed to the top of the lifting plate, the output shaft of the first motor is fixed to a threaded rod, and the thread of the threaded rod is threadedly connected to the lifting plate;

[0018] The clamping mechanism comprises an adjustment seat, both ends of which are fixedly connected to the top of the adjustment rod by screws, and two electric telescopic rods are fixed to the front side of the adjustment seat, and shields are fixed to the telescopic ends of the two electric telescopic rods.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. The present invention sets a pressing and stretching mechanism. The pressing and stretching mechanism first stretches the two sides of the rubbing paper outwards, so as to reduce the generation of transverse wrinkles in the process of outward stretching. The pressing and stretching mechanism also presses and smoothes the stretched rubbing paper longitudinally, which is beneficial to smooth the longitudinal wrinkles of the rubbing paper that contacts the bletilla water before it contacts the rubbing surface and to longitudinally scrape off the air remaining between the rubbing surface and the rubbing paper, so that the rubbing paper and the rubbing surface are in closer contact, which is beneficial to the complete rubbing of the mural.

[0021] 2. The present invention arranges a scraping brush. When the scraping brush moves downward, the scraping brush contacts with the rubbing paper, and the brush surface of the scraping brush presses and scrapes the paper. Under the action of the connecting spring, the scraping brush always keeps the rubbing paper in close contact with the surface to be rubbed. In the process of the scraping brush moving downward, the brush surface of the scraping brush can not only reduce the generation of horizontal wrinkles, but also drive out the residual air from the unfitted portion between the surface to be rubbed and the rubbing paper, thereby facilitating the rubbing of the object to be rubbed.

[0022] 3. The present invention sets a reverse mechanism, which drives the sliding plate to move in a direction opposite to that of the roller. At this time, the roller does not contact the paper, and the sliding plate drives the reverse scraper seat to flip again through the through groove, so that the reverse scraper seat contacts the paper through the friction surface during the flipping process, so that the reverse scraper seat will stretch the paper laterally during the subsequent flipping process, thereby realizing uninterrupted stretching of the paper, which is beneficial to reduce the generation of longitudinal wrinkles. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 It is a structural schematic diagram of the clamping mechanism in the present invention; (partial view)

[0025] Figure 3 It is a structural schematic diagram of the pressing and stretching mechanism in the present invention; (partial view)

[0026] Figure 4 For the present invention Figure 3 A schematic diagram of the enlarged structure at A in the middle;

[0027] Figure 5 For the present invention Figure 4 A schematic diagram of the enlarged structure at B in the middle;

[0028] Figure 6 This is a schematic diagram of the structure after the vertical scroll section in the present invention; (partial view)

[0029] Figure 7 For the present invention Figure 6 Schematic diagram of the enlarged structure at C in the middle;

[0030] Figure 8 This is a schematic diagram of the structure of the vertical protection frame of the present invention after sectioning; (partial view)

[0031] Fig. 9 For the present invention Figure 8 The enlarged structural diagram in the middle;

[0032] Fig.10 Schematic diagram of the connection structure of the scraping frame of the present invention; (partial view)

[0033] Fig.11 For the present invention Fig.10 Schematic diagram of the enlarged structure at E in the middle;

[0034] Fig.12 A schematic diagram of the connection structure of the scraping frame of the present invention from another perspective;

[0035] Fig.13 For the present invention Fig.12Enlarged structural diagram of F in the middle; (partial view)

[0036] Fig.14 This is a schematic diagram of the telescopic rod connection structure in the present invention. (Partial view)

[0037] In the figure: 1, base; 2, moving wheel; 3, slide bar; 4, lifting plate; 5, adjustment rod; 6, L-shaped fixed plate; 7, rotating rod; 8, roller; 9, second motor; 10, fixed seat; 11, cam; 12, sliding rod; 13, reciprocating plate; 14, reset spring; 15, connecting plate; 16, baffle; 17, scraping frame; 18, rotating rod; 19, scraping brush; 20, connecting spring; 21, rolling frame; 22, tilting baffle; 23, roller; 24, avoidance seat; 25, arc-shaped slide seat; 26, tension spring; 27, sliding block; 28, first telescopic rod; 29, support rod; 30, protection Frame; 31, sliding plate; 32, through groove; 33, reverse scraping seat; 34, first rotating seat; 35, first positioning rod; 36, first disc; 37, second telescopic rod; 38, second disc; 39, spring; 40, connecting seat; 41, first rack; 42, second rack; 43, support rod; 44, gear; 45, pull rod; 46, reciprocating groove; 47, connecting plate; 48, positioning support rod; 49, pin plate; 50, rotating shaft; 51, first motor; 52, threaded rod; 53, adjusting seat; 54, electric telescopic rod; 55, shield; 56, second rotating seat; 57, second positioning rod. Implementation

[0038] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art may think of other obvious variations.

[0039] like Figures 1 to 14 The paper loading device shown is used for cliff caves and stele rubbings, comprising a base 1, a plurality of moving wheels 2 are fixed to the bottom of the base 1, two slide bars 3 are fixed to the top of the base 1, the outer rings of the two slide bars 3 are slidably connected with a lifting plate 4, a lifting drive mechanism is arranged between the top of the base 1 and the lifting plate 4, and the lifting drive mechanism is used to drive the lifting plate 4 to rise and fall;

[0040] The tops of the two slide bars 3 are fixed with adjustment bars 5, and a clamping mechanism is provided between the two adjustment bars 5, and the clamping mechanism is used to fix the top of the rubbing paper;

[0041] A pressing and stretching mechanism is provided on the front side of the lifting plate 4, and the pressing and stretching mechanism is used to stretch and remove wrinkles and bubbles on the rubbing paper;

[0042] Two L-shaped fixing plates 6 are fixed on the front side of the lifting plate 4, and the pressing and stretching mechanism is located between the two L-shaped fixing plates 6. A rotating rod 7 is rotatably connected between the two L-shaped fixing plates 6, and a winding roller 8 is sleeved on the rotating rod 7, and the winding roller 8 is located below the pressing and stretching mechanism; during operation, when the rubbing paper is directly spread on the surface of the treated object to be rubbed, although the object to be rubbed can be rubbed to a certain extent, in the process of flattening the rubbing paper, once the rubbing paper is soaked by the sprayed white hyacinth water, it is easy to produce horizontal wrinkles and vertical wrinkles on the surface of the rubbing paper, and air enters between the object to be rubbed and the rubbing paper to produce bubbles, which will greatly affect the rubbing effect, and may even cause the rubbing to fail and waste the rubbing paper. This embodiment of the present invention can solve the above problems. The specific implementation method is as follows: the operator first places the rubbing paper on the winding roller 8, and then adjusts the paper feeding device to a suitable height, and then smoothes the top of the rubbing paper. At this time, the operator opens the clamping mechanism to fix the top of the rubbing paper on the stone wall, and then the operator opens the lifting and lowering The driving mechanism and the pressing and stretching mechanism, the lifting driving mechanism drives the lifting plate 4 to move downward, the lifting plate 4 drives the L-shaped fixed plate 6 to move downward, and the L-shaped fixed plate 6 drives the rotating rod 7 and the winding roller 8 to move downward. In the process of the winding roller 8 moving downward, since the top of the rubbing paper is fixed on the object to be rubbed by the clamping mechanism, the rubbing paper pulls the winding roller 8 to rotate during the downward movement of the winding roller 8, so that the rubbing paper is unwound after the winding roller 8 rotates, which is conducive to the rubbing paper being gradually unwound and stretched to the object to be rubbed. While the winding roller 8 is unwinding, the pressing and stretching mechanism first stretches the two sides of the rubbing paper outward, so that the generation of longitudinal wrinkles is reduced during the outward stretching process. At the same time, the pressing and stretching mechanism will also synchronously press and smooth the stretched rubbing paper longitudinally, which is conducive to smoothing the transverse wrinkles of the rubbing paper in contact with the white hyacinth water before contacting the object to be rubbed and longitudinally scraping off the air remaining between the object to be rubbed and the rubbing paper, so that the contact between the rubbing paper and the object to be rubbed is closer, which is conducive to the complete rubbing of the object to be rubbed.

[0043] As an embodiment of the present invention, the pressing and stretching mechanism includes two second motors 9 and two fixed seats 10, the two second motors 9 are fixed to the top of the lifting plate 4 through the mounting plate, the output ends of the two second motors 9 are fixed with cams 11, the two fixed seats 10 are fixed to the front side of the lifting plate 4, a sliding rod 12 is fixed between the two fixed seats 10, and the outer wall of the sliding rod 12 is symmetrically slidably connected with a reciprocating plate 13, and the opposite sides of the two fixed seats 10 and the two adjacent reciprocating plates 13 are fixed with reset springs 14, and the two reset springs 14 are sleeved on the sliding rod 12 On the outer wall, the tops of the two reciprocating plates 13 are fixed with connecting plates 15, and the opposite ends of the two connecting plates 15 are fixed with baffles 16, which respectively cooperate with the adjacent cams 11. The outer walls of the two sliding rods 12 are provided with longitudinal scraping mechanisms, which are located between the two reciprocating plates 13. When the lifting plate 4 moves downward, the longitudinal scraping mechanism scrapes the wrinkles and bubbles generated on the surface of the rubbing paper. The opposite sides of the two reciprocating plates 13 are provided with transverse stretching mechanisms. When the two reciprocating plates 13 move toward each other, the two transverse stretching mechanisms stretch the two sides of the rubbing paper. During the unwinding process of the winding roller 8, the second motor 9 is started. After the second motor 9 is started, the cam 11 is driven to rotate through the output shaft. When the protrusion of the cam 11 contacts the baffle 16, the baffle 16 is pushed to move. The baffle 16 drives the connecting plate 15 to move. The connecting plate 15 drives the reciprocating plate 13 to slide on the outer wall of the sliding rod 12. The reciprocating plate 13 will compress the reset spring 14 at the same time. After the reciprocating plate 13 moves, it drives the transverse stretching mechanism to start, so that the transverse stretching mechanism performs transverse stretching on both sides of the rubbing paper, which is beneficial to pull the longitudinal wrinkles generated on the rubbing paper. Stretch and smooth it to reduce the occurrence of wrinkles. When the cam 11 is no longer in contact with the baffle 16, the reset spring 14 releases the spring force to push the reciprocating plate 13 back to its original position. The transverse stretching mechanism will avoid the rubbing paper during the return process. After the transverse stretching mechanism returns, the device cycles the above actions again, thereby intermittently stretching the rubbing paper, which is beneficial to reduce the occurrence of longitudinal wrinkles. After the transverse stretching mechanism completes the stretching, the longitudinal scraping mechanism scrapes off the bubbles and transverse wrinkles on the stretched rubbing paper, which is beneficial to reduce the occurrence of transverse wrinkles and bubbles, and is beneficial to the rubbing of the object.

[0044] As an embodiment of the present invention, the longitudinal scraping mechanism includes a scraping frame 17, which is fixed to the outer wall of the sliding rod 12, and the scraping frame 17 is located between the two reciprocating plates 13. A rotating rod 18 is rotatably connected between the two side walls of the scraping frame 17, and a scraping brush 19 is fixed to the outer wall of the rotating rod 18. A plurality of connecting springs 20 are fixed between the scraping brush 19 and the inner wall of the scraping frame 17. During operation, when the scraping brush 19 moves downward, the scraping brush 19 contacts the rubbing paper, and the brush surface of the scraping brush 19 presses and scrapes the rubbing paper. Under the action of the connecting springs 20, the scraping brush 19 always fits the rubbing paper with the object to be rubbed. In the process of the scraping brush 19 moving downward, the brush surface of the scraping brush 19 can not only reduce the generation of transverse wrinkles, but also drive out the residual air from the unfitted part of the object to be rubbed and the rubbing paper, thereby facilitating the rubbing of the object to be rubbed.

[0045] As an embodiment of the present invention, the transverse stretching mechanism includes a rolling frame 21, which is slidably connected to the side of the reciprocating plate 13 facing the scraping frame 17. An avoidance mechanism is arranged between the reciprocating plate 13 and the scraping frame 17. The avoidance mechanism is used to avoid the rubbing paper when the rolling frame 21 returns to its position. The interior of the rolling frame 21 is rotatably connected to a roller 23 in a linear array. During operation, the reciprocating plate 13 drives the rolling frame 21 to move, and the rolling frame 21 drives the roller 23 to move, so that the roller 23 stretches both sides of the rubbing paper when moving outward, which is conducive to making the rubbing paper stretch and flat, and reducing the generation of longitudinal wrinkles. When the reciprocating plate 13 returns to its position, the rolling frame 21 moves away from the rubbing paper under the action of the avoidance mechanism, so that the roller 23 leaves the surface of the rubbing paper to make way. When the reciprocating plate 13 returns to its position, under the action of the avoidance mechanism, the rolling frame 21 drives the roller 23 to return to its position and contact the surface of the rubbing paper again, so that the two sides of the rubbing paper are stretched again during the next working process, which is conducive to reducing the generation of longitudinal wrinkles.

[0046] As an embodiment of the present invention, the avoidance mechanism includes two avoidance seats 24 and two arc-shaped slides 25, and two inclined baffles 22. The two avoidance seats 24 are respectively fixed to the side of the two reciprocating plates 13 facing the scraping frame 17. The two avoidance seats 24 are fixed with tension springs 26 on the side facing the rolling frame 21. The ends of the two tension springs 26 facing away from the avoidance seats 24 are fixedly connected to the rolling frame 21. The two arc-shaped slides 25 are respectively fixed to the two ends of the scraping frame 17, and the two inclined baffles 22 are respectively fixed to the side of the two rolling frames 21 facing the arc-shaped slides 25. The side of the two inclined baffles 22 facing away from the rolling frame 21 A sliding block 27 is fixed to each of the two sliding blocks 27, and a first telescopic rod 28 is fixed to the bottom of each of the two sliding blocks 27. An arc-shaped slide groove is provided on the top of each of the two arc-shaped slide seats 25. The arc-shaped slide groove is an inclined slide groove. The height of the arc-shaped slide groove near the scraping frame 17 is higher than the height near the reciprocating plate 13. The two first telescopic rods 28 slide along the two arc-shaped slide grooves respectively. When working, the movement of the rolling frame 21 drives the inclined baffle plate 22 to move. At this time, the first telescopic rod 28 moves along the front side of the arc-shaped slide seat 25, so that the roller 23 is always in contact with the rubbing paper during the movement. When the inclined baffle plate 22 moves to separate from the arc-shaped slide seat 25, at this time The tension spring 26 drives the rolling frame 21 to move in the direction of the avoidance seat 24, so that the rolling frame 21 drives the roller 23 away from the paper through the inclined baffle 22, and then the inclined baffle 22 drives the first telescopic rod 28 to move backward to one side of the inclined slide through the sliding block 27. The groove of the inclined slide is high on one side and low on the other side. When the reciprocating plate 13 starts to return, the first telescopic rod 28 will start to slide along the lower part of the arc-shaped slide, so as to keep the roller 23 from contacting the paper during the return process. During the movement of the first telescopic rod 28 along the inclined slide, due to the change in the height of the inclined slide, the first telescopic rod 28 is gradually moved by the inclined slide After being squeezed and contracted, the first telescopic rod 28 slides to the end along the inclined slide groove, and then the first telescopic rod 28 disengages from the inclined slide groove under the guidance of the edge of the inclined slide groove, so that the rolling frame 21 can be guided by the inclined slide groove to move away from the rubbing paper during the moving and resetting process, which is beneficial to prevent the rubbing paper from generating longitudinal wrinkles during the returning process. After the first telescopic rod 28 slides out from the higher point of the arc-shaped slide groove, the first telescopic rod 28 falls to the front side of the arc-shaped slide seat 25, so that the inclined baffle 22 drives the rolling frame 21 to move forward, thereby making the roller 23 contact with the rubbing paper, which is beneficial to the next transverse stretching of the rubbing paper.

[0047] As an embodiment of the present invention, a support rod 29 is fixed between the two L-shaped fixed plates 6, and the support rod 29 is located between the rotating rod 7 and the scraping frame 17. A protective frame 30 is fixed to the outer wall of the support rod 29. Two reciprocating grooves 46 are provided on the top of the protective frame 30. A sliding plate 31 is slidably connected on the inner wall of the protective frame 30. A reverse mechanism is provided between the protective frame 30 and the reciprocating plate 13. The reverse mechanism is used to drive the protective frame 30 and the sliding plate 31 to move in the opposite direction. A plurality of through grooves 32 are provided on the front side of the sliding plate 31. A plurality of reverse scraping seats 33 are provided on the outer ring of the support rod 29. A rotating groove is provided inside all the reverse scraping seats 33. The rotating groove is sleeved on the outer ring of the support rod 29 and the upper and lower inner walls are rotatably connected to the upper and lower surfaces of the support rod 29. The left and right sides of all the reverse scraping seats 33 are smooth surfaces and friction surfaces respectively. All the reverse scraping seats 33 correspond to all the through grooves 32 one by one, and the bottom of the reverse scraping seats 33 Located inside the through slot 32, multiple groups of first rotating seats 34 are fixed on the top and bottom of the sliding plate 31, and the first rotating seats 34 in the same group are rotatably connected with the first positioning rods 35, and the first discs 36 are fixed to the ends of all the first positioning rods 35 facing away from the sliding plate 31, and the second telescopic rods 37 are fixed to the ends of all the first discs 36 facing away from the sliding plate 31, and the second discs 38 are fixed to the telescopic ends of the ends of all the second telescopic rods 37 facing away from the sliding plate 31, and the second positioning rods 57 are fixed to the ends of all the second discs 38 facing away from the sliding plate 31, and the second rotating seats 56 are rotatably connected to the ends of all the second positioning rods 57 facing away from the sliding plate 31, and all the second rotating seats 56 are fixedly connected to the inner wall of the protection frame 30, and springs 39 are fixed between the corresponding first discs 36 and the second discs 38, and all the springs 39 are respectively sleeved on the outer walls of the corresponding second telescopic rods 37;During operation, the opposite movement of the rollers 23 can reduce the generation of longitudinal wrinkles to a certain extent and also achieve a certain stretching effect. However, since the stretching of the rollers 23 is intermittent, incomplete stretching may occur during the return process. This may cause longitudinal wrinkles on the unstretched paper, thereby affecting the rubbing effect. This embodiment of the present invention can solve the above problem. The specific implementation method is as follows: the movement of the reciprocating plate 13 drives the movement of the reverse mechanism. The reverse mechanism makes the movement direction of the sliding plate 31 opposite to the movement direction of the roller 23. When the roller 23 moves outward to stretch the paper laterally, the sliding plate 31 drives the end of the reverse scraper seat 33 to move. After the end of the reverse scraper seat 33 moves, the reverse scraper seat 33 is rotatably connected to the support rod 29 through the rotating groove, so that the other end of the reverse scraper seat 33 flips over. At this time, the reverse scraper seat 33 contacts the surface of the paper through the smooth surface during the flipping process, which is beneficial to reduce damage to the surface of the paper. After the reverse scraper 33 is turned over, the friction surface of the reverse scraper seat 33 contacts the surface of the paper, and the sliding plate 31 also drives the first positioning rod 35 to rotate. During the rotation process, the first positioning rod 35 drives the second telescopic rod 37 to contract through the first disc 36 and the second disc 38. When the second telescopic rod 37 rotates a certain angle, the second telescopic rod 37 is returned to its original position under the action of the spring, which is conducive to limiting the position of the sliding plate 31 and preventing the sliding plate 31 from shaking and affecting the reverse scraper seat 33. During the return process of the reciprocating plate 13, the movement direction of the sliding plate 31 driven by the reverse mechanism is opposite to that of the roller 23. At this time, the roller 23 does not contact the paper, and the sliding plate 31 drives the reverse scraper seat 33 to turn over again through the through groove 32, so that the reverse scraper seat 33 contacts the paper through the friction surface during the turning process, so that the reverse scraper seat 33 will stretch the paper transversely in the subsequent turning process, thereby realizing uninterrupted stretching of the paper, which is conducive to reducing the generation of longitudinal wrinkles. ;

[0048] As an embodiment of the present invention, the reverse mechanism includes a connecting seat 40, a first rack 41 and a second rack 42. The connecting seat 40 is fixed to the bottom of the lifting plate 4. A support rod 43 is fixed to the side of the connecting seat 40 facing the protective frame 30. The end of the support rod 43 facing away from the connecting seat 40 is rotatably connected to a gear 44. The first rack 41 is fixed to the bottom of the reciprocating plate 13, and the second rack 42 is slidably connected to the top of the protective frame 30. The first rack 41 and the second rack 42 are both meshed with the gear 44. A pull rod 45 is fixed to the bottom of the second rack 42. The bottom of the pull rod 45 passes through the reciprocating plate 13. A connecting plate 47 is fixed behind the reciprocating groove 46, and the connecting plate 47 is fixed to the front side of the sliding plate 31; during operation, the reciprocating plate 13 drives the first rack 41 to move, and after the first rack 41 moves, it drives the gear 44 meshing with it to rotate, and after the gear 44 rotates, it drives the second rack 42 meshing with it to slide in the reciprocating groove 46 at the top of the protective frame 30, and the direction is opposite to that of the first rack 41. The second rack 42 drives the pull rod 45 to slide, and the pull rod 45 drives the connecting plate 47 to slide, and the connecting plate 47 drives the sliding plate 31 to slide, so that the movement direction of the sliding plate 31 is opposite to that of the reciprocating plate 13.

[0049] As an embodiment of the present invention, a positioning rod 48 is fixed on one side of the two reciprocating plates 13 facing the scraping brush 19, a pin plate 49 is fixed on one end of the two positioning rods 48 facing away from the reciprocating plates 13, and a rotating shaft 50 is rotatably connected to the side of the two pin plates 49 facing away from the positioning rod 48, and the two rotating shafts 50 are located between the scraping brush 19 and the rolling frame 21; when working, when the roller 23 stretches the paper laterally, since there is no supporting force between the roller 23 and the scraping brush 19, the paper may be directly adhered to the scraping brush 19 after being stretched. Some wrinkles are likely to appear on the object being copied, and the scraping of the scraper brush 19 may affect the copying process. This embodiment of the present invention can solve the above problem. The specific implementation method is as follows: when the operator is preparing, the copying paper passes through the rotating shaft 50 and is placed in front of the scraper brush 19. When the roller 8 drives the copying paper to rotate and stretch, the stretched copying paper will pass through the rotating shaft 50 and be supported by the rotating shaft 50. At this time, the rotating shaft 50 can rotate, thereby reducing friction, which is beneficial to reduce the generation of wrinkles and reduce the factors affecting the copying process.

[0050] As an embodiment of the present invention, the lifting drive mechanism includes a first motor 51, the first motor 51 is fixed to the top of the lifting plate 4, the output shaft of the first motor 51 is fixed to a threaded rod 52, and the threaded rod 52 is threadedly connected to the lifting plate 4;

[0051] The clamping mechanism includes an adjusting seat 53, both ends of which are fixedly connected to the top of the adjusting rod 5 by screws, and two electric telescopic rods 54 are fixed on the front side of the adjusting seat 53, and the telescopic ends of the two electric telescopic rods 54 are fixed with shielding plates 55; when working, after preparation is completed, the first motor 51 is turned on, and after the first motor 51 is started, it drives the threaded rod 52 to rotate through the output shaft, and the lifting plate 4 cannot rotate under the sliding connection of the slide rod 3, so that the threaded rod 52 drives the lifting plate 4 threadedly connected thereto to move downward, thereby driving the device to operate, and then the rubbing paper is adjusted to a suitable height, and then the electric telescopic rod 54 is turned on, and the electric telescopic rod 54 drives the shielding plate 55 to move through the telescopic movement of the seat, so that the shielding plate 55 can fix the rubbing paper to the object to be rubbed for rubbing, which is beneficial to avoid the situation in which the rubbing paper moves after being attached to the stone wall due to the roller 8 pulling the top of the rubbing paper during the unwinding process, which affects the rubbing of the paper.

[0052] Working principle of the present invention: when the rubbing paper is directly spread on the processed object to be rubbed, although the object to be rubbed can be rubbed to a certain extent, in the process of flattening the rubbing paper, once the rubbing paper is soaked by the sprayed white hyacinth water, it is easy to produce horizontal wrinkles and vertical wrinkles on the surface of the rubbing paper, and air enters between the object to be rubbed and the rubbing paper to produce bubbles, which will greatly affect the rubbing effect, and may even cause the rubbing to fail and waste the rubbing paper. This embodiment of the present invention can solve the above problems. The specific implementation method is as follows: the operator first places the rubbing paper on the roller 8, and then adjusts the paper feeding device to a suitable height, and then smoothes the top of the rubbing paper. At this time, the operator opens the clamping mechanism to fix the top of the rubbing paper on the object to be rubbed, and then the operator opens the lifting drive mechanism and the pressing and stretching mechanism. The lifting drive mechanism drives the lifting plate 4 to move downward, and the lifting plate 4 drives the L-shaped fixing plate 6 Moving downward, the L-shaped fixed plate 6 drives the rotating rod 7 and the winding roller 8 to move downward. During the downward movement of the winding roller 8, since the top of the rubbing paper is fixed on the object to be rubbed by the clamping mechanism, the rubbing paper pulls the winding roller 8 to rotate during the downward movement of the winding roller 8, so that the rubbing paper is unwound after the winding roller 8 rotates, which is beneficial for the rubbing paper to be gradually unwound and stretched with the object to be rubbed. While the winding roller 8 is unwinding, the pressing and stretching mechanism first stretches the two sides of the rubbing paper outward, so as to reduce the generation of longitudinal wrinkles in the process of outward stretching. At the same time, the pressing and stretching mechanism will also synchronously press and smooth the stretched rubbing paper longitudinally, which is beneficial for smoothing the transverse wrinkles of the rubbing paper in contact with the white hyacinth water before it contacts the object to be rubbed, and for longitudinally scraping off the air remaining between the object to be rubbed and the rubbing paper, so that the contact between the rubbing paper and the object to be rubbed is closer, which is beneficial for the complete rubbing of the object to be rubbed.

[0053] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions only describe the principles of the present invention. The present invention may have various changes and improvements without departing from the spirit and scope of the present invention, and these changes and improvements fall within the scope of the present invention to be protected, and the scope of protection claimed by the present invention is defined by the attached claims and their equivalents.

Claims

1. A paper loading device for cliff caves and stele rubbings, comprising a base (1), a plurality of moving wheels (2) being fixed to the bottom of the base (1), characterized in that: Two sliding rods (3) are fixed to the top of the base (1); the outer rings of the two sliding rods (3) are slidably connected to a lifting plate (4); a lifting drive mechanism is provided between the top of the base (1) and the lifting plate (4); the lifting drive mechanism is used to drive the lifting plate (4) to move up and down; An adjusting rod (5) is fixed to the top of each of the two sliding rods (3), and a clamping mechanism is provided between the two adjusting rods (5), the clamping mechanism being used to fix the top of the paper rubbing; A pressing and stretching mechanism is provided on the front side of the lifting plate (4), and the pressing and stretching mechanism is used to stretch and remove wrinkles and bubbles on the rubbing paper; Two L-shaped fixing plates (6) are fixed on the front side of the lifting plate (4), the pressing and stretching mechanism is located between the two L-shaped fixing plates (6), a rotating rod (7) is rotatably connected between the two L-shaped fixing plates (6), a roller (8) is sleeved on the rotating rod (7), and the roller (8) is located below the pressing and stretching mechanism; The pressing and stretching mechanism comprises two second motors (9) and two fixing seats (10), the two second motors (9) are fixed to the top of the lifting plate (4) through a mounting plate, the output ends of the two second motors (9) are fixed with cams (11), the two fixing seats (10) are fixed to the front side of the lifting plate (4), a sliding rod (12) is fixed between the two fixing seats (10), the outer wall of the sliding rod (12) is symmetrically slidably connected with a reciprocating plate (13), a return spring (14) is fixed between the opposite sides of the two fixing seats (10) and the two adjacent reciprocating plates (13), the two return springs (14) are sleeved on the outer wall of the sliding rod (12), a connecting plate (15) is fixed to the top of the two reciprocating plates (13), and baffles (16) are fixed to the opposite ends of the two connecting plates (15), and the two baffles (16) respectively cooperate with the adjacent cams (11); A longitudinal scraping mechanism is provided on the outer wall of the two sliding rods (12), and the longitudinal scraping mechanism is located between the two reciprocating plates (13). When the lifting plate (4) moves downward, the longitudinal scraping mechanism scrapes away the wrinkles and bubbles generated on the surface of the rubbing paper. A transverse stretching mechanism is provided on the opposite sides of the two reciprocating plates (13). When the two reciprocating plates (13) move towards each other, the two transverse stretching mechanisms stretch the two sides of the rubbing paper transversely.

2. The paper feeding device for cliff caves and stele rubbings according to claim 1 is characterized in that: The longitudinal scraping mechanism comprises a scraping frame (17), the scraping frame (17) being fixed to the outer wall of the sliding rod (12), and the scraping frame (17) being located between the two reciprocating plates (13), a rotating rod (18) being rotatably connected between the two side walls of the scraping frame (17), a scraping brush (19) being fixed to the outer wall of the rotating rod (18), and a plurality of connecting springs (20) being fixed between the scraping brush (19) and the inner wall of the scraping frame (17).

3. The paper feeding device for cliff caves and stele rubbings according to claim 2 is characterized in that: The transverse stretching mechanism comprises a rolling frame (21), wherein the rolling frame (21) is slidably connected to a side of the reciprocating plate (13) facing the scraping frame (17), and an avoidance mechanism is provided between the reciprocating plate (13) and the scraping frame (17), wherein the avoidance mechanism is used to avoid the rubbing paper when the rolling frame (21) returns to its original position, and rollers (23) are rotatably connected to the interior of the rolling frame (21) in a linear array.

4. The paper feeding device for cliff caves and stele rubbings according to claim 3 is characterized in that: The avoidance mechanism comprises two avoidance seats (24), two arc-shaped slide seats (25) and two inclined baffles (22); the two avoidance seats (24) are respectively fixed to the sides of the two reciprocating plates (13) facing the scraping frame (17); the sides of the two avoidance seats (24) facing the rolling frame (21) are both fixed with tension springs (26); the ends of the two tension springs (26) facing away from the avoidance seats (24) are both fixedly connected to the rolling frame (21); the two arc-shaped slide seats (25) are respectively fixed to the two ends of the scraping frame (17) facing the reciprocating plates (13); the two inclined baffles (22) are respectively fixed to the side of the two rolling frames (21) facing the arc-shaped slide seat (25), and the two inclined baffles (22) are fixed with sliding blocks (27) on the side facing away from the rolling frame (21). The bottoms of the two sliding blocks (27) are fixed with first telescopic rods (28). The tops of the two arc-shaped slide seats (25) are provided with arc-shaped slide grooves, and the arc-shaped slide grooves are inclined slide grooves. The height of the arc-shaped slide grooves near one end of the scraping frame (17) is higher than the height of the arc-shaped slide grooves near one end of the reciprocating plate (13). The two first telescopic rods (28) slide along the two arc-shaped slide grooves respectively.

5. The paper feeding device for rubbings of cliff caves and inscriptions according to claim 2 is characterized in that: A support rod (29) is fixed between the two L-shaped fixed plates (6), and the support rod (29) is located between the rotating rod (7) and the scraping frame (17). A protective frame (30) is fixed to the outer wall of the support rod (29), and two reciprocating grooves (46) are provided on the top of the protective frame (30). A sliding plate (31) is slidably connected to the inner wall of the protective frame (30). A reversing mechanism is provided between the protective frame (30) and the reciprocating plate (13), and the reversing mechanism is used to drive the protective frame (30) and the sliding plate (31) to move in the opposite direction. The front side of the sliding plate (31) is provided with a plurality of through grooves (32), the outer ring of the support rod (29) is provided with a plurality of reverse scraping seats (33), the interior of all the reverse scraping seats (33) is provided with a rotation groove, the rotation groove is sleeved on the outer ring of the support rod (29), and the upper and lower inner walls are rotatably connected with the upper and lower surfaces of the support rod (29), the left and right sides of all the reverse scraping seats (33) are respectively a smooth surface and a friction surface, all the reverse scraping seats (33) correspond to all the through grooves (32) one by one, and the bottom of the reverse scraping seat (33) is located at the through groove. Inside the groove (32), a plurality of groups of first rotating seats (34) are fixed to the top and bottom of the sliding plate (31), and first positioning rods (35) are rotatably connected between the first rotating seats (34) in the same group, and a first disc (36) is fixed to one end of all the first positioning rods (35) facing away from the sliding plate (31), and a second telescopic rod (37) is fixed to one end of all the first discs (36) facing away from the sliding plate (31), and a second disc (37) is fixed to the telescopic end of one end of all the second telescopic rods (37) facing away from the sliding plate (31). 38), a second positioning rod (57) is fixed to one end of all the second discs (38) facing away from the sliding plate (31), and a second rotating seat (56) is rotatably connected to one end of all the second positioning rods (57) facing away from the sliding plate (31), and all the second rotating seats (56) are fixedly connected to the inner wall of the protection frame (30), and a spring (39) is fixed between the corresponding first disc (36) and the second disc (38), and all the springs (39) are respectively sleeved on the outer wall of the corresponding second telescopic rod (37).

6. The paper feeding device for rubbings of cliff caves and inscriptions according to claim 5 is characterized in that: The reverse mechanism comprises a connecting seat (40), a first rack (41) and a second rack (42); the connecting seat (40) is fixed to the bottom of the lifting plate (4); a support rod (43) is fixed to the side of the connecting seat (40) facing the protection frame (30); one end of the support rod (43) facing away from the connecting seat (40) is rotatably connected to a gear (44); the first rack (41) is fixed to the bottom of the reciprocating plate (13); the second rack (42) is slidably connected to the top of the protection frame (30); the first rack (41) and the second rack (42) are both meshed with the gear (44); a pull rod (45) is fixed to the bottom of the second rack (42); the bottom of the pull rod (45) passes through the reciprocating groove (46) and is fixed with a connecting plate (47); the connecting plate (47) is fixed to the front side of the sliding plate (31).

7. The paper feeding device for cliff caves and stele rubbings according to claim 3 is characterized in that: A positioning rod (48) is fixed to one side of the two reciprocating plates (13) facing the scraping brush (19), a pin plate (49) is fixed to one end of the two positioning rods (48) facing away from the reciprocating plates (13), and a rotating shaft (50) is rotatably connected to one side of the two pin plates (49) facing away from the positioning rod (48), and the two rotating shafts (50) are located between the scraping brush (19) and the rolling frame (21).

8. The paper feeding device for rubbings of cliff caves and inscriptions according to claim 7 is characterized in that: The lifting drive mechanism comprises a first motor (51), the first motor (51) being fixed to the top of the lifting plate (4), the output shaft of the first motor (51) being fixed to a threaded rod (52), the threaded rod (52) being threadedly connected to the lifting plate (4); The clamping mechanism comprises an adjustment seat (53), two ends of the adjustment seat (53) being fixedly connected to the top of the adjustment rod (5) via screws, two electric telescopic rods (54) being fixed to the front side of the adjustment seat (53), and shielding plates (55) being fixed to the telescopic ends of the two electric telescopic rods (54).

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