CN219593874U - High-efficient image device of last - Google Patents

Abstract

The utility model relates to the field of shoe manufacture, in particular to a shoe last high-efficiency imaging device which comprises a frame, a first fixing seat, a second fixing seat, a horizontal adjusting component, a vertical adjusting mechanism and an imager, wherein the horizontal adjusting component comprises a horizontal connecting piece and a horizontal screw rod, the horizontal screw rod is rotationally connected to the frame along the horizontal direction, the horizontal connecting piece is in threaded fit with the horizontal screw rod, and the first fixing seat is fixedly arranged on the horizontal connecting piece; the vertical adjusting mechanism comprises a vertical screw rod and a vertical connecting piece, the vertical screw rod is rotationally connected to the first fixing seat along the vertical direction, the vertical connecting piece is in threaded fit with the vertical screw rod, the second fixing seat is fixedly arranged on the vertical connecting piece, and the imager is arranged on the second fixing seat. The utility model has the effect of improving the working efficiency of processing the upper.

Description

High-efficient image device of last

Technical Field

The utility model relates to the field of shoe sole manufacturing, in particular to a shoe last high-efficiency imaging device.

Background

In the process of producing the shoe, the sole is attached to the upper. When the shoe upper is attached, the shoe upper is firstly sleeved on the last, then the bottom of the shoe upper is roughened, the bottom of the shoe upper is required to be glued after the roughening, and finally the sole is attached to the bottom of the shoe upper by an operator.

In the prior art, the bottom of the upper is typically roughened and glued using a tooling head. When the bottom of the upper is roughened and glued, the last sleeved with the upper is fixedly arranged on the frame. The operator manually processes the motion trail of the head according to the outline dimension of the upper, and the processing head moves according to the motion trail appointed by the operator, so that the bottom of the upper which is fixedly arranged is roughened and glued.

According to the related technology, when the uppers with different outline dimensions are processed on the same production line, operators need to manually replace different preset programs, so that the processing heads can process the uppers with different outline dimensions through different movement tracks, and the working efficiency of processing the uppers is low.

Disclosure of Invention

In order to improve the working efficiency of processing the shoe upper, the utility model provides a shoe last high-efficiency imaging device.

The utility model provides a shoe last high-efficiency imaging device which adopts the following technical scheme:

the utility model provides a high-efficient image device of shoe last, includes frame, first fixing base, second fixing base, horizontal adjustment subassembly, vertical adjustment mechanism and imager, horizontal adjustment subassembly includes horizontal locating part, horizontal driving piece, horizontal connecting piece and horizontal screw rod, horizontal screw rod rotates along the horizontal direction and connects in the frame, horizontal driving piece is used for driving horizontal screw rod rotation, horizontal connecting piece screw thread fit is in horizontal screw rod, first fixing base is fixed to be set up in horizontal connecting piece, horizontal locating part is used for restricting the rotation of horizontal connecting piece;

the vertical adjusting mechanism comprises a vertical driving assembly, a vertical limiting part, a vertical screw rod and a vertical connecting part, wherein the vertical screw rod is rotationally connected to a first fixing seat along the vertical direction, the vertical driving assembly is used for driving the vertical screw rod to rotate, the vertical connecting part is in threaded fit with the vertical screw rod, a second fixing seat is fixedly arranged on the vertical connecting part, the vertical limiting part is used for limiting the rotation of the vertical connecting part, and the imager is arranged on the second fixing seat.

By adopting the technical scheme, the horizontal driving piece drives the horizontal screw rod to rotate to drive the horizontal connecting piece to move along the horizontal direction, so that the first fixing seat drives the second fixing seat and the imager to move along the horizontal direction together; the vertical driving assembly drives the vertical screw rod to rotate and drives the vertical connecting piece to move along the vertical direction, so that the second fixing seat drives the imager to move along the vertical direction. When the shoe uppers pass through the imaging area of the imager, the imager moves along the horizontal direction and the vertical direction to image and measure the shoe uppers sleeved on the last, so that the shoe uppers are conveniently modeled and positioned, and the processing heads are conveniently and automatically moved according to the movement tracks corresponding to the shoe uppers with different external dimensions. Therefore, when the uppers with different outline dimensions are processed on the same production line, the processing head can process the uppers with different outline dimensions through different movement tracks without manually changing different preset programs by an operator, so that the efficiency of processing the uppers is improved.

Optionally, horizontal connecting piece has seted up the horizontal spacing hole that runs through along the horizontal direction and sets up, horizontal locating part is horizontal gag lever post, horizontal locating part level wears to locate horizontal spacing hole.

Through adopting above-mentioned technical scheme, horizontal locating part wears to locate horizontal spacing hole, carries out spacingly to first fixing base, and then has reduced when first fixing base moves along the horizontal direction, and first fixing base takes place the emergence of pivoted condition to the stationarity when having improved the imager and having obtained the image, messenger's imager can carry out more accurate formation of image to the appearance of upper of a shoe, has ensured the degree of accuracy of upper of a shoe modeling and location, and has improved the production quality of upper of a shoe.

Optionally, the vertical locating part is the locating slide rail, vertical setting of vertical locating part, the fixed spacing slider that is provided with of second fixing base, spacing slider sliding fit in vertical locating part.

Through adopting above-mentioned technical scheme, spacing slider slides along vertical direction and cooperates in vertical locating part, carries out spacingly to the second fixing base, and then when having reduced the second fixing base and moved along vertical direction, the second fixing base takes place the emergence of pivoted condition to the stationarity when having improved the imager and having obtained the image, in order to improve the precision of modeling and location to the upper of a shoe.

Optionally, the vertical drive assembly includes vertical driving motor, vertical action wheel, vertical follow driving wheel and hold-in range, vertical action wheel coaxial fixed set up in the output shaft of vertical driving motor, vertical follow driving wheel vertical coaxial fixed set up in vertical screw rod, the hold-in range is around locating vertical action wheel and vertical follow driving wheel, when vertical action wheel rotated, the hold-in range drove vertical follow driving wheel rotation.

Through adopting above-mentioned technical scheme, vertical action wheel and vertical follow driving motor's direction of rotation can carry out the switching-over, be convenient for install vertical driving motor to different positions, the suitability is strong.

Optionally, the first fixing base is fixedly provided with a dust cover, and the vertical driving wheel, the vertical driven wheel and the synchronous belt are all arranged in an area surrounded by the dust cover.

Through adopting above-mentioned technical scheme, the dust cover has reduced the dust that falls in vertical action wheel, vertical follow driving wheel and hold-in range to increase last high-efficient image device's life.

Optionally, the second fixing base is provided with formation of image adjustment mechanism, formation of image adjustment mechanism includes formation of image rotating member, formation of image connecting member and formation of image drive assembly, formation of image rotating member level rotates and connects in the second fixing base, formation of image connecting member is vertical to be rotated and is connected in formation of image rotating member, the fixed setting of formation of image ware is in formation of image connecting member, formation of image drive assembly is used for driving formation of image rotating member and rotates.

Through adopting above-mentioned technical scheme, when the imager moves along horizontal direction and vertical direction, can also rotate the angle of adjustment imager to be favorable to the imager to take images and measure the upper that is located more positions, so that model and fix a position the upper more accurately.

Optionally, the imaging rotating member is provided with a positioning groove in a penetrating manner, the imaging connecting member is provided with a plurality of positioning holes in a penetrating manner, and one of the positioning holes is communicated with the positioning groove when the imaging connecting member rotates.

Through adopting above-mentioned technical scheme, with the angular adjustment of formation of image connecting piece, ensure that the upper of a shoe can pass behind the formation of image district of imager, wear to locate one of them locating hole and constant head tank with the bolt to make the angle locking between formation of image connecting piece and the formation of image rotating member through the nut, thereby be favorable to keeping the stability of the junction between formation of image connecting piece and the formation of image imaging device when the formation of image ware moves.

Optionally, the fixed corner sensor that is provided with of second fixing base, imaging rotation piece is fixed to be provided with the corner indicator, corner sensor is used for detecting the corner indicator.

Through adopting above-mentioned technical scheme, the corner indicator rotates with formation of image rotation piece together, and formation of image rotation piece rotates to the corner sensor position when imaging required position promptly, and the corner sensor is responded to formation of image rotation piece position to be favorable to guaranteeing the final accuracy that rotates to required position of second fixing base.

In summary, the present utility model includes at least one of the following beneficial technical effects:

1. the horizontal driving piece drives the horizontal screw rod to rotate and drives the horizontal connecting piece to move along the horizontal direction, so that the first fixing seat drives the second fixing seat and the imager to move along the horizontal direction together; the vertical driving assembly drives the vertical screw rod to rotate and drives the vertical connecting piece to move along the vertical direction, so that the second fixing seat drives the imager to move along the vertical direction. When the shoe uppers pass through the imaging area of the imager, the imager moves along the horizontal direction and the vertical direction to image and measure the shoe uppers sleeved on the last, so that the shoe uppers are conveniently modeled and positioned, and the processing heads are conveniently and automatically moved according to the movement tracks corresponding to the shoe uppers with different external dimensions. Therefore, when the uppers with different outline dimensions are processed on the same production line, the processing head can process the uppers with different outline dimensions through different movement tracks without manually changing different preset programs by an operator, so that the efficiency of processing the uppers is improved.

2. The horizontal limiting piece is arranged in the horizontal limiting hole in a penetrating mode, limiting is conducted on the first fixing seat, when the first fixing seat moves in the horizontal direction, the occurrence of the situation that the first fixing seat rotates is reduced, and therefore stability of the imager when an image is obtained is improved, the imager can conduct more accurate imaging and measurement on the appearance of the upper, accuracy of upper modeling and positioning is guaranteed, and production quality of the upper is improved.

3. The limiting slide block slides along the vertical direction to be matched with the vertical limiting piece to limit the second fixing seat, so that the occurrence of the condition that the second fixing seat rotates when the second fixing seat moves along the vertical direction is reduced, and the stability of the imager when acquiring images is improved, and the accuracy of modeling and positioning the upper is improved.

Drawings

FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present utility model.

FIG. 2 is a schematic diagram of the connection between a stop lever and a cross beam in an embodiment of the present utility model.

Fig. 3 is a partial enlarged view of the portion a of fig. 2 according to an embodiment of the present utility model.

Fig. 4 is a schematic, partially exploded view of the overall structure of an embodiment of the present utility model.

Fig. 5 is a partial enlarged view of the portion B of fig. 4 according to an embodiment of the present utility model.

Fig. 6 is a partial enlarged view of the portion C of fig. 4 according to an embodiment of the present utility model.

Fig. 7 is a partial enlarged view of the portion D of fig. 4 according to an embodiment of the present utility model.

Reference numerals illustrate: 1. a frame; 2. a first fixing seat; 3. the second fixing seat; 4. an imager; 5. a column; 6. a cross beam; 7. a clamping member; 8. a horizontal driving member; 9. a horizontal connector; 10. a horizontal screw; 11. a horizontal rotation hole; 12. a horizontal limiting hole; 13. a horizontal limiting member; 14. a first fixing plate; 15. a first connection portion; 16. a second connecting portion; 17. a vertical screw; 18. a vertical connection; 19. a vertical rotation hole; 20. a vertical driving motor; 21. a vertical driving wheel; 22. a vertical driven wheel; 23. a synchronous belt; 24. a second fixing plate; 25. a third fixing plate; 26. a third connecting portion; 27. a vertical limiting member; 28. a limit sliding block; 29. an imaging rotation member; 30. an imaging connector; 31. adjusting a motor; 32. an imaging rotation plate; 33. a first connection plate; 34. a second connecting plate; 35. a third connecting plate; 36. a positioning groove; 37. positioning holes; 38. a rotation angle sensor; 39. a rotation angle indicating piece; 40. a dust cover.

Detailed Description

The utility model is described in further detail below with reference to fig. 1-7.

The embodiment of the utility model discloses a shoe last high-efficiency imaging device. Referring to fig. 1, the last high efficiency imaging device includes a frame 1, a first fixing base 2, a second fixing base 3, a horizontal adjusting assembly, a vertical adjusting mechanism, and an imager 4.

Referring to fig. 1, the frame 1 includes columns 5 and beams 6, the number of the columns 5 is two, and both the columns 5 are vertically disposed. Both ends of the cross beam 6 are provided with clamping pieces 7, and the two clamping pieces 7 are fixedly arranged on the two upright posts 5 through bolts respectively, so that the cross beam 6 is fixed and the height of the cross beam 6 is adjusted according to actual conditions.

Referring to fig. 2 and 3, the horizontal adjustment assembly includes a horizontal stopper 13, a horizontal driving member 8, a horizontal connecting member 9, and a horizontal screw 10. In the embodiment of the utility model, the horizontal limiting member 13 is provided as a horizontal limiting rod and the horizontal driving member 8 is provided as a motor. The horizontal driving piece 8 is fixedly arranged at one end of the cross beam 6 through a bolt and is horizontally arranged, the horizontal screw 10 is rotatably connected with the other end of the cross beam 6 and is horizontally arranged, and the horizontal screw 10 is coaxially and fixedly arranged on an output shaft of the horizontal driving piece 8. The horizontal connecting piece 9 is provided with a horizontal rotating hole 11 and a horizontal limiting hole 12 which penetrate through the horizontal connecting piece in the horizontal direction, and the horizontal screw rod 10 is in threaded fit with the horizontal rotating hole 11 so as to drive the horizontal connecting piece 9 to move in the horizontal direction through rotation of the horizontal screw rod 10. The horizontal limiting piece 13 is fixedly arranged on the cross beam 6, the horizontal limiting piece 13 horizontally penetrates through the horizontal limiting hole 12 and is matched with the horizontal limiting hole 12 in a sliding mode, so that the position of the horizontal connecting piece 9 when sliding is limited, and the stability of the horizontal connecting piece 9 when sliding is guaranteed.

Referring to fig. 4 and 5, the first fixing base 2 includes a first fixing plate 14, a first connection portion 15, and a second connection portion 16. One side of the first fixing plate 14 is vertically and fixedly arranged on the horizontal connecting piece 9, and the horizontal connecting piece 9 is positioned at the bottom of the first fixing plate 14. The first connecting portion 15 and the second connecting portion 16 are fixedly arranged on one side, far away from the horizontal connecting piece 9, of the first fixing plate 14, the first connecting portion 15 and the second connecting portion 16 are close to the axis of the first fixing plate 14, and the first connecting portion 15 and the second connecting portion 16 are close to the top and the bottom of the first fixing plate 14 respectively.

Referring to fig. 4 and 5, the vertical adjustment mechanism includes a vertical drive assembly, a vertical stop 27, a vertical screw 17, and a vertical connection 18. The bottom of the vertical screw 17 is rotatably connected to the second connecting portion 16, and the top end of the vertical screw 17 is penetrated through the first connecting portion 15. The vertical screw 17 is disposed in the vertical direction and is disposed near the axis of the first fixing plate 14. The vertical connecting piece 18 is provided with a vertical rotation hole 19 penetrating the vertical connecting piece in the vertical direction, the vertical screw 17 is in threaded fit with the vertical rotation hole 19, and the vertical connecting piece 18 is located between the first connecting portion 15 and the second connecting portion 16.

Referring to fig. 4 and 5, the vertical driving assembly includes a vertical driving motor 20, a vertical driving wheel 21, a vertical driven wheel 22, and a timing belt 23. The vertical driving motor 20 is fixedly arranged on one side of the first fixing plate 14 far away from the vertical screw 17 through bolts, the vertical driving motor 20 is positioned at the top of the horizontal connecting piece 9, and an output shaft of the vertical driving motor 20 is far away from the horizontal connecting piece 9. The vertical driving wheel 21 is coaxially and fixedly arranged on the output shaft of the vertical driving motor 20. The vertical driven wheel 22 is coaxially and fixedly arranged at the top end of the vertical screw rod 17, and the synchronous belt 23 is wound on the vertical driving wheel 21 and the vertical driven wheel 22. When the vertical driving motor 20 drives the vertical driving wheel 21 to rotate, the synchronous belt 23 drives the vertical driven wheel 22 to rotate, and then drives the vertical screw 17 to rotate, so that the vertical connecting piece 18 moves along the vertical direction.

Referring to fig. 4, the top of the first fixing plate 14 is fixedly provided with a dust cover 40, and the vertical driving wheel 21, the vertical driven wheel 22 and the timing belt 23 are all located in an area surrounded by the dust cover 40. The dust cover 40 reduces dust falling on the vertical driving wheel 21, the vertical driven wheel 22 and the timing belt 23, thereby increasing the service life of the last high efficiency imaging device.

Referring to fig. 4 and 5, the second fixing base 3 includes a second fixing plate 24, a third fixing plate 25, and a third connection portion 26. The second fixing plate 24 is fixedly provided to the vertical connection member 18 by bolts and is vertically provided. In the embodiment of the utility model, the number of the vertical limiting pieces 27 is two, the two vertical limiting pieces 27 are both limiting slide rails, and the two vertical limiting pieces 27 are both fixedly arranged on the first fixing plate 14. The two vertical limiting pieces 27 are fixedly arranged on one side, provided with the vertical screw 17, of the first fixing plate 14, the two vertical limiting pieces 27 are arranged in the vertical direction, and the two vertical limiting pieces 27 are symmetrically arranged along the axis of the first fixing plate 14. A plurality of limit sliding blocks 28 are fixedly arranged on one side of the second fixing plate 24, the number of the limit sliding blocks 28 is four, and the four limit sliding blocks 28 are equally divided into two groups. The two sets of limiting sliding blocks 28 are respectively in sliding fit with the two vertical limiting pieces 27, so that the occurrence of the condition that the second fixing plate 24 rotates when the second fixing plate 24 moves along the vertical direction is reduced.

Referring to fig. 4 and 6, the third fixing plate 25 is fixedly disposed at the bottom of the second fixing plate 24 by a bolt and is vertically disposed, and the third connecting portion 26 is fixedly disposed at the bottom of the second fixing plate 24 by a bolt and is horizontally disposed. The third connecting portion 26 is provided with an imaging adjustment mechanism including an imaging rotation member 29, an imaging connecting member 30, and an imaging drive assembly. The imaging drive assembly includes an adjustment motor 31. The adjustment motor 31 is fixedly provided to the third connecting portion 26 by a bolt, and the adjustment motor 31 drives the imaging rotation member 29 to horizontally rotate by gear set, that is, engagement of two gears (the gears are not shown in the drawing).

Referring to fig. 4 and 6, the image forming rotary 29 has a "U" shape, the image forming rotary 29 includes an image forming rotary plate 32 and a first connecting plate 33, and the number of the first connecting plates 33 is set to two. The two first connecting plates 33 are fixedly arranged at the bottom of the imaging rotating plate 32, and the two first connecting plates 33 are opposite to each other.

Referring to fig. 4 and 6, the image forming coupler 30 has a "U" shape, and the image forming coupler 30 includes second coupling plates 34 and third coupling plates 35, the number of the second coupling plates 34 being two. The two second connection plates 34 are respectively rotatably connected to the two first connection plates 33. The two second connecting plates 34 are fixedly arranged on the third connecting plate 35, the two second connecting plates 34 are perpendicular to the third connecting plate 35, and the imager 4 is fixedly arranged on the third connecting plate 35. The first connection plate 33 is provided with an annular positioning groove 36 penetrating in the thickness direction thereof. The third connecting plate 35 is provided with positioning holes 37 penetrating through the third connecting plate along the thickness direction of the third connecting plate, the number of the positioning holes 37 is six, and the six positioning holes 37 are distributed annularly. When the third connecting plate 35 is rotated, one of the positioning holes 37 is communicated with the positioning groove 36, so that the first connecting plate 33 and the second connecting plate 34 can be firmly fixed by bolts penetrating through one of the positioning holes 37 and the positioning groove 36.

Referring to fig. 6 and 7, the third connecting portion 26 is fixedly provided with the rotation angle sensors 38, and in the embodiment of the present utility model, the number of rotation angle sensors 38 is two, and the two rotation angle sensors 38 are disposed opposite to each other. The imaging rotation plate 32 is fixedly provided with two rotation angle indicating pieces 39, and the two rotation angle indicating pieces 39 are respectively arranged corresponding to the two rotation angle sensors 38. When the imaging rotation member 29 rotates to the position where the rotation angle sensor 38 is located, that is, the imaging required position, the rotation angle sensor 38 senses the position where the imaging rotation member 29 is located, so that it is advantageous to ensure the accuracy of the final rotation of the second fixing base 3 to the required position.

The imager 4 may be a structured light camera, and the imager 4 may acquire an image of the upper, where the image acquiring manner may be scanning, photographing, or other manners capable of acquiring an image.

The implementation principle of the shoe last high-efficiency imaging device is as follows: the horizontal driving motor drives the horizontal screw rod 10 to rotate, so that the horizontal connecting piece 9 drives the first fixing plate 14 to move along the horizontal direction, and the second fixing seat 3 drives the imager 4 to move along the horizontal direction. The vertical driving motor 20 drives the vertical driving wheel 21 to rotate, and the vertical driving wheel 21 drives the synchronous belt 23 and the vertical driven wheel 22 to move together, so that the vertical screw 17 rotates, and the vertical connecting piece 18 drives the second fixing plate 24 to move along the vertical direction. The second fixing plate 24 drives the third fixing plate 25 and the imaging rotation member 29 to move together in the vertical direction, so that the imaging link 30 drives the imager 4 to move in the vertical direction. When the shoe upper passes through the imaging area of the imager 4, the imager 4 moves along the horizontal direction and the vertical direction, the image of the shoe upper is acquired and the shoe upper is measured, so that the shoe upper is conveniently positioned and modeled, and the processing head is facilitated to automatically move according to the corresponding movement tracks of the shoe upper with different external dimensions and process the shoe upper. Therefore, when the uppers with different outline dimensions are processed on the same production line, operators do not need to manually replace different preset programs, and the processing heads can process the uppers with different outline dimensions through different movement tracks, so that the efficiency of processing the uppers is improved.

The adjusting motor 31 drives the imaging rotating member 29 to horizontally rotate through the meshing of the gear sets, namely the two gears, so that the imaging device 4 can rotate around when moving along the horizontal direction and the vertical direction, the upper is ensured to be positioned in an imaging area of the imaging device 4, the imaging device 4 can more effectively acquire images of the upper and measure the upper, the accuracy of positioning and modeling the upper is improved, and the processing head can process the upper with higher precision; the imaging connector 29 is rotated to a designated position, so that after the shoe upper is positioned in the imaging area of the imager 4, a bolt is inserted into one of the positioning grooves 36 and the positioning holes 37, and the angle between the imaging connector 30 and the imaging connector 29 is locked by the nut, thereby being beneficial to maintaining the stability of the joint between the imager 4 and the imaging connector 30 and further improving the accuracy of positioning and modeling the shoe upper.

The above embodiments are not intended to limit the scope of the present utility model, so: all equivalent changes in structure, shape and principle of the utility model should be covered in the scope of protection of the utility model.

Claims (8)

1. A last high-efficient image device which characterized in that: the device comprises a frame (1), a first fixing seat (2), a second fixing seat (3), a horizontal adjusting assembly, a vertical adjusting mechanism and an imager (4), wherein the horizontal adjusting assembly comprises a horizontal limiting part (13), a horizontal driving part (8), a horizontal connecting part (9) and a horizontal screw rod (10), the horizontal screw rod (10) is rotationally connected to the frame (1) along the horizontal direction, the horizontal driving part (8) is used for driving the horizontal screw rod (10) to rotate, the horizontal connecting part (9) is in threaded fit with the horizontal screw rod (10), the first fixing seat (2) is fixedly arranged on the horizontal connecting part (9), and the horizontal limiting part (13) is used for limiting the rotation of the horizontal connecting part (9);

the vertical adjusting mechanism comprises a vertical driving assembly, a vertical limiting part, a vertical screw rod (17) and a vertical connecting part (18), wherein the vertical screw rod (17) is rotationally connected to the first fixing seat (2) along the vertical direction, the vertical driving assembly is used for driving the vertical screw rod (17) to rotate, the vertical connecting part (18) is in threaded fit with the vertical screw rod (17), the second fixing seat (3) is fixedly arranged on the vertical connecting part (18), the vertical limiting part is used for limiting the rotation of the vertical connecting part (18), and the imager (4) is arranged on the second fixing seat (3).

2. The last high-efficiency imaging device according to claim 1, wherein: the horizontal connecting piece (9) is provided with a horizontal limiting hole (12) penetrating through the horizontal connecting piece in the horizontal direction, the horizontal limiting piece (13) is a horizontal limiting rod, and the horizontal limiting piece (13) horizontally penetrates through the horizontal limiting hole (12).

3. The last high-efficiency imaging device according to claim 1, wherein: the vertical limiting piece (27) is a limiting slide rail, the vertical limiting piece (27) is vertically arranged, the second fixing seat (3) is fixedly provided with a limiting slide block (28), and the limiting slide block (28) is in sliding fit with the vertical limiting piece (27).

4. The last high-efficiency imaging device according to claim 1, wherein: the vertical driving assembly comprises a vertical driving motor (20), a vertical driving wheel (21), a vertical driven wheel (22) and a synchronous belt (23), wherein the vertical driving wheel (21) is coaxially and fixedly arranged on an output shaft of the vertical driving motor (20), the vertical driven wheel (22) is vertically and fixedly arranged on a vertical screw (17), the synchronous belt (23) is wound on the vertical driving wheel (21) and the vertical driven wheel (22), and when the vertical driving wheel (21) rotates, the synchronous belt (23) drives the vertical driven wheel (22) to rotate.

5. The last high-efficiency imaging device according to claim 4, wherein: the first fixing seat (2) is fixedly provided with a dust cover (40), and the vertical driving wheel (21), the vertical driven wheel (22) and the synchronous belt (23) are all arranged in an area surrounded by the dust cover (40).

6. The last high-efficiency imaging device according to claim 4, wherein: the imaging adjusting mechanism comprises an imaging rotating piece (29), an imaging connecting piece (30) and an imaging driving assembly, wherein the imaging rotating piece (29) horizontally rotates to be connected with the second fixing seat (3), the imaging connecting piece (30) vertically rotates to be connected with the imaging rotating piece (29), the imaging device (4) is fixedly arranged on the imaging connecting piece (30), and the imaging driving assembly is used for driving the imaging rotating piece (29) to rotate.

7. The last high-efficiency imaging device of claim 6, wherein: the imaging rotating piece (29) is provided with a positioning groove (36) in a penetrating mode, the imaging connecting piece (30) is provided with a plurality of positioning holes (37) in a penetrating mode, and when the imaging connecting piece (30) rotates, one of the positioning holes (37) is communicated with the positioning groove (36).

8. The last high-efficiency imaging device of claim 6, wherein: the second fixing seat (3) is fixedly provided with a corner sensor (38), the imaging rotating piece (29) is fixedly provided with a corner indicating piece (39), and the corner sensor (38) is used for detecting the corner indicating piece (39).