Adjustable test paper collecting and conveying device

Abstract

The utility model discloses an adjustable test paper collecting and conveying device, relates to the technical field of test paper conveying, and aims at solving the problems that when a traditional device is used for processing test papers of different sizes, thicknesses or materials, universality is poor, a large amount of time needs to be consumed for manual adjustment, and even compatibility cannot be achieved. A front conveying mechanism is arranged on the first outer plates, two sets of symmetrical auxiliary mechanisms are arranged above the front conveying mechanism, an error reporting mechanism is arranged above the end of the front conveying mechanism, and a set of arc-shaped discharging plates are arranged at the ends of the two sets of first outer plates. According to the device, the error reporting mechanism is arranged, and the abnormal conditions such as excursion, arch bridge or stacking of multiple pieces of test paper in the conveying process are accurately detected through a travel switch. Once abnormity occurs, the equipment can immediately give an alarm and stop running, so that damage of test papers and blockage or damage of the equipment are effectively avoided, smoothness, continuity and reliability of automatic conveying are remarkably improved, and the frequency of manual intervention is reduced.

Description

Technical Field

[0001] This utility model relates to the field of test paper conveying technology, and in particular to an adjustable test paper collection and conveying device. Background Technology

[0002] Existing test paper collection and conveying devices often face numerous challenges in practical applications. For example, limited by mechanical structure and control methods, traditional devices often have poor versatility when handling test papers of different sizes, thicknesses, or materials, requiring significant time for manual adjustments, and may even be incompatible. More importantly, during high-speed continuous conveying, test papers are prone to deviation, warping into a "bow bridge" shape, or multiple sheets stacking, and existing devices lack effective and timely anomaly detection and early warning mechanisms. Once such problems occur, they can lead to paper jams and test paper damage, or even equipment downtime and component wear, severely impacting production efficiency and automation levels.

[0003] Therefore, this application provides an adjustable test paper collection and delivery device to meet the requirements. Utility Model Content

[0004] The purpose of this application is to provide an adjustable test paper collection and delivery device, which aims to solve the problem that traditional devices often have poor versatility when handling test papers of different sizes, thicknesses or materials, requiring a lot of time for manual adjustment, or even being incompatible.

[0005] To achieve the above objectives, this application provides the following technical solution: an adjustable test paper collection and conveying device, comprising a first outer plate and a second outer plate, each of the first and second outer plates having two sets, the two sets of the first outer plate and the two sets of the second outer plate being connected by multiple sets of connecting rods, a front conveying mechanism being provided on the first outer plate, and two sets of symmetrical auxiliary mechanisms being provided above the front conveying mechanism, and an error reporting mechanism being provided above the end of the front conveying mechanism, and a set of arc-shaped feeding plates being provided at the ends of the two sets of the first outer plates;

[0006] The error reporting mechanism also includes limit switches, adjusting plates, and adjusting bolts. A connecting rod is provided on the first outer plate, a set of limit switches is fixed on the connecting rod, and an adjusting plate is hinged to the outer wall of the first outer plate. A torsion spring is provided at the hinge of the adjusting plate, and a set of adjusting bolts is threadedly connected to the first outer plate. The end of the adjusting bolt is slidably connected to the adjusting plate.

[0007] A rear conveying mechanism and a positioning mechanism are provided on the second outer plate, and the rear conveying mechanism and the positioning mechanism are connected to each other.

[0008] Preferably, the front conveying mechanism includes a first rotating roller, a second rotating roller, a third rotating roller, a first motor, a first sprocket, and a second sprocket. The first rotating roller is provided in two sets, and the first rotating roller is located at the front and rear ends of the first outer plate. The two sets of first rotating rollers are connected by a first conveyor belt.

[0009] Between the two sets of No. 1 rotating rollers, there are two sets of No. 2 rotating rollers and one set of No. 3 rotating rollers. The No. 3 rotating roller is located above the No. 2 rotating rollers, and the No. 1 conveyor belt runs around the No. 2 and No. 3 rotating rollers.

[0010] A motor is installed on the outer wall of the outer plate, and the shaft of the motor passes through the outer plate. A sprocket is installed on the outer plate to drive the motor. A coaxial sprocket is installed on the roller. The sprockets are connected by a chain.

[0011] Preferably, the auxiliary mechanism includes a first mounting base and an auxiliary roller, a second mounting base, an auxiliary motor, a drive synchronous pulley, and a driven synchronous pulley. There are two sets of first mounting bases, both of which are fixed to the first outer plate by bolts. An auxiliary roller is rotatably connected to the top surface of the first mounting base. The two sets of auxiliary rollers are connected by an auxiliary conveyor belt. A second mounting base is provided next to the first mounting base. An auxiliary motor is provided on the second mounting base. A drive synchronous pulley is provided on the drive shaft of the auxiliary motor. A driven synchronous pulley is provided on the auxiliary roller. The drive synchronous pulley and the driven synchronous pulley are connected by a synchronous belt.

[0012] Preferably, the rear conveying mechanism includes a first fixed rod and a first roller sleeve, a fourth rotating roller, a second motor, a third sprocket, a fourth sprocket, and a second chain. A set of first fixed rods is fixedly installed on the second outer plate, a set of first roller sleeves is rotatably connected to the first fixed rods, and a set of fourth rotating rollers is rotatably connected to the second outer plate. The fourth rotating rollers are connected to the first roller sleeves via a second conveyor belt.

[0013] A set of No. 2 motors are installed on the No. 2 outer plate. The No. 3 sprocket is installed on the drive shaft of the No. 2 motor, and a No. 4 sprocket is installed on the No. 4 roller. The No. 4 sprocket and the No. 3 sprocket are connected by the No. 2 chain.

[0014] A set of driven rods is rotatably connected above the fourth roller. There are multiple sets of driven rods. The two outermost sets of driven rods are equipped with rollers, which are connected by the third conveyor belt. The middle sets of driven rods are hinged with hinge arms. The free end of the hinge arms is rotatably connected to a tension wheel, which abuts against the inner wall of the third conveyor belt. A driven gear is provided on the uppermost driven rod, and a drive gear that meshes with the driven gear is provided on the fourth roller.

[0015] Preferably, the positioning mechanism includes a No. 5 rotating roller, a No. 2 fixed rod, a No. 2 roller sleeve, a No. 4 conveyor belt, and a guide. The No. 5 rotating roller and the No. 2 fixed rod are both mounted on the No. 2 outer plate. The No. 2 roller sleeve is rotatably connected to the No. 2 fixed rod. The No. 5 rotating roller is connected to the No. 2 roller sleeve through the No. 4 conveyor belt. A No. 5 sprocket is provided at the end of the No. 5 rotating roller. The No. 2 chain and the No. 5 sprocket mesh with each other.

[0016] Symmetrical adjustment seats are provided on the second outer plate. Adjustment rods are slidably connected to the adjustment seats. L-shaped guides are hinged to the opposite side of the adjustment rods. A hole is provided on the top surface of the adjustment seat, and a tightening bolt is threaded into the hole.

[0017] Preferably, auxiliary wheels are provided on the connecting rods of the first outer plate and the second outer plate. The auxiliary wheels have an I-shaped cross-section and are slidably connected between the edges of the first conveyor belt and the second conveyor belt.

[0018] In summary, the technical effects and advantages of this utility model are as follows:

[0019] This invention features a device with an error-reporting mechanism that uses limit switches to accurately detect abnormalities during the transport process, such as test paper misalignment, bridging, or multiple sheets stacking. Upon detection of any abnormality, the device immediately issues an alarm and stops operation, effectively preventing test paper breakage, equipment jamming, or damage. This significantly improves the smoothness, continuity, and reliability of automated transport, while reducing the frequency of manual intervention.

[0020] This invention, through the cooperation of an adjusting plate and adjusting bolts, allows for convenient and precise adjustment of the conveying channel width according to the specifications of the test papers being produced. Combined with the automatic reset torsion spring design of the adjusting plate, rapid switching and positioning are achieved, greatly improving the equipment's versatility and compatibility with test papers of different sizes. Furthermore, the L-shaped guide in the positioning mechanism and its tilt angle adjustment function ensure the regularity of the test papers during output, further expanding its application range.

[0021] This invention cleverly utilizes a primary motor to drive the front conveyor mechanism, while a secondary motor simultaneously drives the three conveyor belts in the rear conveyor mechanism and positioning mechanism for synchronized operation. This highly integrated and synchronized driving method not only reduces the number of transmission components and simplifies the overall mechanical structure, but also ensures seamless cooperation and precise synchronization of each conveying link, thereby improving the overall efficiency and stability of the equipment operation, and reducing transmission losses, maintenance costs, and potential failure risks. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the structure of this utility model;

[0024] Figure 2 This is a schematic diagram of the front conveying mechanism of this utility model;

[0025] Figure 3 This is an exploded view of the front conveying mechanism of this utility model;

[0026] Figure 4 For the present utility model Figure 3 Enlarged structural diagram at point A in the diagram;

[0027] Figure 5 For the present utility model Figure 3 Enlarged structural diagram at point B in the diagram;

[0028] Figure 6 This is a schematic diagram of the rear conveying mechanism of this utility model;

[0029] Figure 7 This is an exploded structural diagram of the rear conveying mechanism of this utility model.

[0030] In the diagram: 1. Outer plate No. 1; 2. Connecting rod; 3. Roller No. 1; 4. Roller No. 2; 5. Roller No. 3; 6. Auxiliary wheel; 7. Limit switch; 8. Sprocket No. 1; 9. Sprocket No. 2; 10. Chain No. 1; 11. Motor No. 1; 12. Conveyor belt No. 1; 13. Feed plate; 14. Mounting base No. 1; 15. Auxiliary roller; 16. Mounting base No. 2; 17. Auxiliary motor; 18. Drive synchronous pulley; 19. Driven synchronous pulley; 20. Outer plate No. 2; 21. Fixed rod No. 1; 22. No. 1 23. Roller sleeve; 24. No. 2 motor; 25. No. 3 sprocket; 26. No. 4 sprocket; 27. No. 5 sprocket; 28. No. 2 chain; 29. ​​Drive gear; 30. Driven gear; 31. Driven rod; 32. Rotary wheel; 33. Hinge arm; 34. Tensioner wheel; 35. No. 5 rotary roller; 36. No. 2 fixed rod; 37. No. 2 roller sleeve; 38. No. 4 conveyor belt; 39. Guide; 40. Adjusting rod; 41. Adjusting seat; 42. Tensioner bolt; 43. Adjusting plate; 44. Adjusting bolt. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Example: Reference Figure 1-7 An adjustable test paper collection and conveying device is shown, comprising an outer plate 1 and an outer plate 20. Both outer plates 1 and 20 are provided in two sets, and the two sets of outer plates 1 and 20 are connected by multiple sets of connecting rods 2 to form a stable support frame. A front conveying mechanism is provided on the outer plate 1, and two sets of symmetrical auxiliary mechanisms are provided above the front conveying mechanism. An error reporting mechanism is also provided above the end of the front conveying mechanism. An arc-shaped feeding plate 13 is provided at the end of the two sets of outer plates 1. A rear conveying mechanism and a positioning mechanism are provided on the outer plate 20. The rear conveying mechanism and the positioning mechanism are connected and driven by a drive source.

[0033] As one implementation method in this embodiment, the error reporting mechanism also includes a limit switch 7, an adjusting plate 43, and adjusting bolts 44. A connecting rod is provided on the first outer plate 1, and a set of limit switches 7 are fixed on the connecting rod. The switching rod of the limit switch 7 is spaced at the height of one test paper between it and the first conveyor belt 12. Under normal use, the limit switch 7 is in the normally closed state. When the test paper deviates and cannot pass normally, resulting in a bridge or multiple stacks, the switching rod of the limit switch 7 is activated, and the equipment issues an alarm to remind the staff that the equipment is abnormal. An adjusting plate 43 is hinged to the outer wall of the first outer plate 1. A torsion spring is provided at the hinge of the adjusting plate 43, and a set of adjusting bolts 44 is threadedly connected to the first outer plate 1. The end of the adjusting bolt 44 is slidably connected to the adjusting plate 43. According to the specifications of the test paper being produced, the adjusting bolts 44 are rotated to adjust the two sets of symmetrical adjusting plates 43 to flip. An automatic reset torsion spring is provided at the hinge of the adjusting plate 43 to stabilize the flipping state of the adjusting plate 43.

[0034] As one embodiment of this example, the front conveying mechanism has two sets of No. 1 rollers 3 (located on both sides of the No. 1 outer plate 2). The two sets of No. 1 rollers 3 are connected by a No. 1 conveyor belt 12. In order to facilitate the adjustment of the length of the No. 1 conveyor belt 12, two sets of No. 2 rollers 4 and one set of No. 3 rollers 5 are provided between the two sets of No. 1 rollers 3. There are two sets of No. 2 rollers 4, and a set of No. 3 rollers 5 is provided above one set of No. 2 rollers 4. The aforementioned No. 1 conveyor belt 12 passes over the No. 2 rollers 4 and No. 3 rollers 5.

[0035] To drive the front conveying mechanism, a first motor 11 is installed on the outer wall of the first outer plate 1, and the shaft of the first motor 11 passes through the first outer plate 1. The first sprocket 8 is coaxially arranged with the shaft of the first motor 11. To drive the first conveyor belt 12, a second sprocket 9 is coaxially arranged on the first roller 3. The first sprocket 8 and the second sprocket 9 are connected by a first chain 10, thereby realizing the operation of the front conveying mechanism of the whole by driving the first motor 11.

[0036] As one embodiment of this invention, the auxiliary mechanism includes two sets of mounting base 14, both fixed to outer plate 1 by bolts. An auxiliary roller 15 is rotatably connected to the top surface of mounting base 14. The two sets of auxiliary rollers 15 are connected by an auxiliary conveyor belt. A second mounting base 16 is provided on one side of mounting base 14. An auxiliary motor 17 is provided on the second mounting base 16. A drive synchronous wheel 18 is provided on the drive shaft of the auxiliary motor 17. A driven synchronous wheel 19 is provided on the auxiliary roller 15. The drive synchronous wheel 18 and the driven synchronous wheel 19 are connected by a synchronous belt. The bottom of the auxiliary conveyor belt is at the same horizontal level as the top surface of the first conveyor belt 12 (in order to cover the gap between the first conveyor belt 12 and outer plate 1, a set of baffles against the edge of the first conveyor belt 12 is provided on the inner wall of outer plate 1). When the test paper is conveyed before the test paper falls, the auxiliary front conveyor mechanism conveys it backward together.

[0037] As one embodiment of this invention, the rear conveying mechanism comprises: a set of first fixed rods 21 fixedly installed on the second outer plate 20; a set of first roller sleeves 22 rotatably connected to the first fixed rods 21; and a set of fourth rotating rollers 23 rotatably connected to the second outer plate 20. The fourth rotating rollers 23 and the first roller sleeves 22 are connected by a second conveyor belt. A set of second motors 24 are installed on the second outer plate 20. A third sprocket 25 is provided on the drive shaft of the second motor 24. A fourth sprocket 26 is coaxially provided on the fourth rotating roller 23. The fourth sprocket 26 and the third sprocket 25 are connected by a second chain 28.

[0038] A set of driven rods 31 is rotatably connected above the fourth roller 23. Multiple sets of driven rods 31 are provided. The two outermost sets of driven rods 31 are equipped with rollers 32, which are connected by the third conveyor belt (the rollers 32 on the lower driven rods 31 are rotatably connected to the driven rods 31). Hinged arms 33 are hinged to the middle sets of driven rods 31. Tensioning wheels 34 are rotatably connected to the free ends of the hinged arms 33. The tensioning wheels 34 abut against the inner wall of the third conveyor belt, changing the shape of the third conveyor belt from a waist-shaped structure to an isosceles trapezoidal structure. A set of two motors 24 simultaneously drives the three conveyor belts and the two conveyor belts to work synchronously. A driven gear 30 is provided on the uppermost driven rod 31, and a drive gear 29 that meshes with the driven gear 30 is provided on the four rollers 23. Therefore, when the two motors 24 are working, the three sprockets 25 drive the four sprockets 26 to rotate through the two chains 28. The rotating four sprockets 26 drive the coaxial four roller sleeves 23 to rotate, and then the drive gear 29 provided at the other end of the four roller sleeves 23 drives the driven gear 30 on the driven rod 31 to work synchronously.

[0039] As one embodiment of this example, the positioning mechanism includes: the No. 5 rotating roller 35 and the No. 2 fixing rod 36 are both mounted on the No. 2 outer plate 20. The No. 2 roller sleeve 37 is rotatably connected to the No. 2 fixing rod 36. The No. 5 rotating roller 35 is connected to the No. 2 roller sleeve 37 through the No. 4 conveyor belt 38. The No. 5 sprocket 27 is provided at the end of the No. 5 rotating roller 35. The No. 2 chain 28 and the No. 5 sprocket 27 mesh with each other, thereby realizing that one set of No. 2 motor 24 drives three sets of conveyor belts to work synchronously.

[0040] A symmetrical adjusting seat 41 is provided on the second outer plate 20. An adjusting rod 40 is slidably connected to the adjusting seat 41. A guide 39 with an L-shaped cross section is hinged to the opposite side of the adjusting rod 40. A hole is provided on the top surface of the adjusting seat 41, and a tightening bolt 42 is threaded into the hole.

[0041] As one embodiment of this invention, auxiliary wheels 6 are provided on the connecting rods 2 of the first outer plate 1 and the second outer plate 20. The auxiliary wheels 6 have an I-shaped cross section and are slidably connected between the edges of the first conveyor belt 12 and the second conveyor belt.

[0042] The working principle of this device is as follows: The test paper is thrown down from the feed plate 13 and then slides down to the front conveyor mechanism. Then, the first motor 11 is started, which drives the first sprocket 8 to rotate. The working first sprocket 8 drives the second sprocket 9, which is coaxial with the first roller 3, to rotate through the first chain 10. The rotating first roller 3 drives the first conveyor belt 12 to rotate on the second roller 4 and the third roller 5. During this process, the first conveyor belt 12 is adjusted by the auxiliary wheel 6. When the test paper passes through the front conveyor mechanism, the limit switch 7 is in a non-contact state with the test paper. When the test paper deviates, sags, or piles up, it touches the limit switch 7, the equipment stops running, and an alarm is triggered to remind the staff to deal with the problem.

[0043] By means of an auxiliary mechanism, when the test paper is initially placed before the conveying mechanism, the auxiliary motor 17 is started. The auxiliary motor 17 drives the drive synchronous wheel 18 to rotate. The drive synchronous wheel 18 drives the driven synchronous wheel 19 to rotate via a synchronous belt. The driven synchronous wheel 19 is coaxially arranged with a set of auxiliary rotating rollers 15, so that the set of auxiliary rotating rollers 15 rotates on the first mounting seat 14. The rotating set of auxiliary rotating rollers 15 drives the other set of auxiliary rotating rollers 15 to rotate via an auxiliary conveyor belt. The two sets of working auxiliary mechanisms are arranged perpendicular to the front conveying mechanism, and the test paper is conveyed on both sides.

[0044] The adjusting plate 43 is hinged to the outer plate 1. By rotating the adjusting bolt 44 on the outer plate 1, the free end of the adjusting bolt 44 abuts against the outer wall of the adjusting plate 43, causing the adjusting plate 43 to flip inward. The adjusting plate 43 is automatically reset after the adjusting bolt 44 moves away from the hinge point by a torsion spring.

[0045] After the exam paper passes through the various mechanisms on outer plate 1, it is sent to the rear conveyor mechanism on outer plate 20. Then, by starting motor 24, the coaxial sprocket 25 of motor 24 is driven to rotate. The rotating sprocket 25 drives sprockets 26 and 27 via chain 28. Sprocket 26 drives roller 23, which is coaxial with it, to rotate. Roller 23 drives roller sleeve 22 on fixed rod 21 via conveyor belt 2. During this process, the other end of roller 23 is equipped with a coaxial drive gear 29, which drives the driven gear 30 above it. The driven rod 31, coaxial with the driven gear 30, drives the rotating wheel 32 to rotate. The two sets of rotating wheels 32 are connected by the No. 3 conveyor belt (the upper rotating wheel 32 is coaxial with the driven rod 31, and the lower rotating wheel 32 is rotatably connected to the driven rod 31). In order to ensure that there is a gap of one test paper between the No. 3 conveyor belt and the No. 2 conveyor belt, a hinge arm 33 is provided on the driven rod 31 to press down the No. 3 conveyor belt. A set of tensioning wheels 34 is rotatably connected to the free end of the hinge arm 33. Through the structural layout of the tensioning wheels 34 and the rotating wheel 32, the No. 3 conveyor belt forms an isosceles trapezoidal structure to assist in the transportation of test papers.

[0046] The No. 5 sprocket 27, driven by the No. 2 chain 28, drives the No. 5 rotating roller 35 to rotate. A set of No. 2 roller sleeves 37 is rotatably connected to the No. 2 fixed rod 36 on the No. 2 outer plate 20. The No. 2 roller sleeves 37 are connected to the No. 5 rotating roller 35 through the No. 4 conveyor belt 38. Driven by the No. 2 motor 24, the No. 5 rotating roller 35 works to drive the test paper that has moved to this location to continue to be moved.

[0047] To ensure that the test papers are neatly arranged when shipped, a set of L-shaped guides 39 are provided between the inner rings of the fourth conveyor belt 38. Two sets of adjusting rods 40 are hinged on the outer wall of the guides 39, which pass through the second outer plate 20 and are slidably connected in the adjusting seat 41. The tilt angle of the two sets of guides 39 can be changed by rotating the tension bolt 42 on the top surface of the adjusting seat 41.

[0048] The electromechanical connections involved in this utility model are common practices used by those skilled in the art, and technical inspiration can be obtained through a limited number of experiments; they are common knowledge.

[0049] Components not described in detail in this article are existing technologies.

[0050] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An adjustable test paper collection and conveying device, comprising a first outer plate (1) and a second outer plate (20), wherein both the first outer plate (1) and the second outer plate (20) are provided in two sets, and the two sets of the first outer plate (1) and the two sets of the second outer plate (20) are connected by multiple sets of connecting rods (2), characterized in that: A front conveying mechanism is provided on the first outer plate (1), and two sets of symmetrical auxiliary mechanisms are provided above the front conveying mechanism. An error reporting mechanism is provided above the end of the front conveying mechanism, and a set of arc-shaped feeding plates (13) are provided at the ends of the two sets of the first outer plates (1). The error reporting mechanism also includes a limit switch (7), an adjusting plate (43), and adjusting bolts (44). A connecting rod is provided on the first outer plate (1), and a set of the limit switches (7) is fixed on the connecting rod. The adjusting plate (43) is hinged on the outer wall of the first outer plate (1). A torsion spring is provided at the hinge of the adjusting plate (43), and a set of adjusting bolts (44) is threaded on the first outer plate (1). The end of the adjusting bolts (44) is slidably connected to the adjusting plate (43). A rear conveying mechanism and a positioning mechanism are provided on the second outer plate (20), and the rear conveying mechanism and the positioning mechanism are connected to each other.

2. The adjustable test paper collection and conveying device according to claim 1, characterized in that: The front conveying mechanism includes a first rotating roller (3), a second rotating roller (4), a third rotating roller (5), a first motor (11), a first sprocket (8), and a second sprocket (9). The first rotating roller (3) is provided in two sets, and the first rotating roller (3) is located at the front and rear ends of the first outer plate (1). The two sets of the first rotating roller (3) are connected by a first conveyor belt (12). Two sets of No. 2 rollers (4) and one set of No. 3 rollers (5) are provided between the two sets of No. 1 rollers (3). The No. 3 rollers (5) are located above the No. 2 rollers (4), and the No. 1 conveyor belt (12) passes around the No. 2 rollers (4) and the No. 3 rollers (5). A motor (11) is provided on the outer wall of the first outer plate (1), and the shaft of the first motor (11) passes through the first outer plate (1). A sprocket (8) for the first motor (11) to drive is provided on the first outer plate (1). A coaxial sprocket (9) is provided on the first roller (3). The first sprocket (8) and the second sprocket (9) are connected by a chain (10).

3. The adjustable test paper collection and conveying device according to claim 2, characterized in that: The auxiliary mechanism includes a first mounting base (14), an auxiliary roller (15), a second mounting base (16), an auxiliary motor (17), a drive synchronous wheel (18), and a driven synchronous wheel (19). There are two sets of the first mounting base (14), both of which are fixed to the first outer plate (1) by bolts. The auxiliary roller (15) is rotatably connected to the top surface of the first mounting base (14). The two sets of auxiliary rollers (15) are connected by an auxiliary conveyor belt. The second mounting base (16) is provided on one side of the first mounting base (14). The second mounting base (16) is provided with an auxiliary motor (17). The drive synchronous wheel (18) is provided on the drive shaft of the auxiliary motor (17). The driven synchronous wheel (19) is provided on the auxiliary roller (15). The drive synchronous wheel (18) and the driven synchronous wheel (19) are connected by a synchronous belt.

4. The adjustable test paper collection and conveying device according to claim 2, characterized in that: The rear conveying mechanism includes a first fixed rod (21), a first roller sleeve (22), a fourth rotating roller (23), a second motor (24), a third sprocket (25), a fourth sprocket (26), and a second chain (28). A set of first fixed rods (21) is fixedly installed on the second outer plate (20). A set of first roller sleeves (22) is rotatably connected to the first fixed rods (21). A set of fourth rotating rollers (23) is rotatably connected to the second outer plate (20). The fourth rotating roller (23) and the first roller sleeve (22) are connected by a second conveyor belt. A set of No. 2 motors (24) are installed on the No. 2 outer plate (20). The No. 3 sprocket (25) is provided on the drive shaft of the No. 2 motor (24), and a coaxial No. 4 sprocket (26) is provided on the No. 4 roller (23). The No. 4 sprocket (26) and the No. 3 sprocket (25) are connected by a No. 2 chain (28). A set of driven rods (31) is rotatably connected above the fourth roller (23). There are multiple sets of driven rods (31). The two outermost sets of driven rods (31) are equipped with rollers (32). The two sets of rollers (32) are connected by the third conveyor belt. The middle sets of driven rods (31) are hinged with hinge arms (33). The free end of the hinge arms (33) is rotatably connected with tension wheels (34). The tension wheels (34) abut against the inner wall of the third conveyor belt. A driven gear (30) is provided on the uppermost driven rod (31). A drive gear (29) that meshes with the driven gear (30) is provided on the fourth roller (23).

5. The adjustable test paper collection and conveying device according to claim 4, characterized in that: The positioning mechanism includes a fifth rotating roller (35), a second fixed rod (36), a second roller sleeve (37), a fourth conveyor belt (38), and a guide (39). The fifth rotating roller (35) and the second fixed rod (36) are both mounted on the second outer plate (20). The second roller sleeve (37) is rotatably connected to the second fixed rod (36). The fifth rotating roller (35) is connected to the second roller sleeve (37) through the fourth conveyor belt (38). A fifth sprocket (27) is provided at the end of the fifth rotating roller (35). The second chain (28) and the fifth sprocket (27) mesh with each other. A symmetrical adjustment seat (41) is provided on the second outer plate (20). An adjustment rod (40) is slidably connected to the adjustment seat (41). A guide (39) with an L-shaped cross section is hinged to the opposite side of the adjustment rod (40). A hole is provided on the top surface of the adjustment seat (41), and a tightening bolt (42) is threaded into the hole.

6. The adjustable test paper collection and conveying device according to claim 4, characterized in that: Auxiliary wheels (6) are provided on the connecting rods (2) of the first outer plate (1) and the second outer plate (20). The auxiliary wheels (6) have an I-shaped cross section. The first conveyor belt (12) and the second conveyor belt are slidably connected.

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