Test paper paging and binding machine

Abstract

The invention discloses a test paper paging and binding machine, including a paper support platform, which is provided with a plurality of paper support platforms stacked up and down; a paper pickup mechanism, including a plurality of paper pickup wheels, which are arranged above the front edge of the paper support platform; a flap stacking mechanism, including a plurality of flap units, which correspond to the paper support platform one by one, which are arranged at the front side of the paper support platform, and which include two flaps arranged opposite to each other on the left and right sides, and when the flaps are flipped downward, the paper falls; an output mechanism, including a conveyor belt, which is arranged below the flap stacking mechanism and is used to receive the paper falling from the flap unit; a nail pressing mechanism, which is arranged on the side of the conveyor belt, and is used to staple the paper when the nail head of the nail pressing mechanism is pressed downward; and a driving mechanism, which drives the paper pickup wheel, the flap, the nail head and the conveyor belt in a circular manner in sequence. The invention can automatically paginate and bind a small number of pages of paper materials, and has low use cost.

Description

Technical Field

[0001] The invention relates to a binding machine, in particular to an examination paper paging binding machine. Background Art

[0002] When printing multi-page test papers in schools, it is usually necessary to print a certain page for a specified number of pages before printing the next page. This printing method brings considerable trouble to the subsequent binding stage. Generally, it is done manually by sorting the pages by page number, taking one sheet from each pile of paper and then binding them, which is time-consuming and laborious. Existing large-scale paging equipment is expensive and requires a large investment. In addition, the conventional paging device paging idea is mostly to stack the paper by page number, take one sheet from the paper pile one by one and then bind it. This device conforms to the manual operation path, but it requires precise control of each paper taking step and time interval. Otherwise, it is easy for each page of paper to jam when it is output or the page numbers are stacked incorrectly. Therefore, more sensors and control devices need to be configured, which increases the cost of the paging device. Summary of the invention

[0003] In view of the above-mentioned defects of the prior art, the present invention provides a test paper paging and binding machine, which adopts a relatively simple mechanical transmission structure to realize the paging and binding of test papers with a small number of pages, thereby reducing the manpower, time and equipment costs of binding.

[0004] The technical solution of the present invention is as follows: A test paper paging and binding machine, comprising:

[0005] A paper support table is provided with a plurality of stacked ones;

[0006] The paper pickup mechanism includes a plurality of paper pickup wheels, which are arranged above the front edge of each paper support platform and are used to feed the paper on the paper support platform into the flip-plate stacking structure sheet by sheet;

[0007] The flipping plate stacking mechanism comprises a plurality of flipping plate units, each of which corresponds to the paper support platform. The flipping plate unit is arranged at the front side of the paper support platform for receiving paper from the paper support platform. The flipping plate unit comprises two flipping plates arranged opposite to each other on the left and right sides. When all the flipping plates are flipped downward synchronously, the paper received by the flipping plate unit falls down.

[0008] The output mechanism includes a conveyor belt, which is arranged below the flap stacking mechanism and is used to receive the paper dropped from the flap unit;

[0009] A nail pressing mechanism, arranged on the side of the conveyor belt, wherein the nail pressing head of the nail pressing mechanism is used to staple paper when pressed downward; and

[0010] A driving mechanism, wherein the driving mechanism sequentially and cyclically drives the paper pickup wheel, the flap, the nail pressing mechanism and the conveyor belt.

[0011] Furthermore, the driving mechanism includes a first friction wheel, a second friction wheel, a third friction wheel and a fourth friction wheel which are coaxially arranged in sequence from top to bottom. When the first friction wheel rotates, it drives the paper pickup wheel to rotate; when the second friction wheel rotates, it drives the flap to flip down; when the third friction wheel rotates, it drives the nail pressing mechanism to press down; and when the fourth friction wheel rotates, it drives the conveyor belt to rotate.

[0012] Furthermore, the driving mechanism includes an active friction wheel, which contacts the first friction wheel, the second friction wheel, the third friction wheel and the fourth friction wheel in sequence when moving up and down in a gap, and drives the first friction wheel, the second friction wheel, the third friction wheel and the fourth friction wheel to rotate.

[0013] Furthermore, the driving mechanism includes a groove wheel mechanism and a rack, the outer circumferential surface of the groove wheel of the groove wheel mechanism is provided with an engaging portion and a separating portion, the engaging portion is provided with teeth meshing with the rack, the separating portion is a smooth surface, the rack is vertically arranged, the rack is connected to the active friction wheel, and a rebound structure is provided under the rack to move the rack upward.

[0014] Furthermore, the rebound structure includes a vertical guide column and a spring, the rack is passed through the vertical guide column, and the spring is sleeved on the vertical guide column and located below the rack.

[0015] Furthermore, the flip-up paper stacking mechanism is provided with a synchronization structure, which includes a left connecting rod, a left pressure rod, a right connecting rod and a right pressure rod. The left connecting rod is hinged to the free ends of all the left flip plates, and the right connecting rod is hinged to the free ends of all the right flip plates. The left pressure rod is arranged in parallel with the right pressure rod, the left pressure rod is fixedly connected to the left connecting rod, and the right pressure rod is fixedly connected to the right connecting rod. A vertically scalable pressure wheel is provided between the left pressure rod and the right pressure rod.

[0016] Furthermore, the shaft of the pressure wheel is connected with a spring in a vertical direction.

[0017] Furthermore, the nail pressing mechanism is provided with a driving wheel and a connecting rod, the nail pressing head is provided with an inclined guide groove, a slider is provided in the guide groove, one end of the connecting rod is hinged to the wheel surface of the driving wheel, and the other end of the connecting rod is hinged to the slider.

[0018] The technical solution provided by the present invention has the advantages of using a mechanical transmission structure to control the paging and binding of test papers, changing the paging and binding logic of conveying one sheet of paper at a time and stacking them in sequence, conveying multiple sheets of paper synchronously, and directly dropping and stacking them in vertical layers, which simplifies the control accuracy requirements, avoids paper output conflicts and paper jams between multiple test papers, and is particularly suitable for paging and binding of test papers with a small number of pages. Using a mechanical device for automatic paging and binding simplifies the operation, saving time and effort. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional schematic diagram of the rear side of the test paper paging and binding machine of the embodiment.

[0020] Figure 2 It is a front perspective schematic diagram of the test paper paging and binding machine of the embodiment.

[0021] Figure 3 It is a partial cross-sectional diagram of the position of the paper support and paper picking mechanism.

[0022] Figure 4 It is a partial cross-sectional schematic diagram of the flip-plate paper stacking mechanism.

[0023] Figure 5 This is a schematic diagram of the structure without the casing and paper support.

[0024] Figure 6 It is a partial schematic diagram of the groove wheel and the rack. DETAILED DESCRIPTION

[0025] The present invention is further described below in conjunction with examples. It should be understood that these examples are only used to illustrate the present invention and are not used to limit the scope of the present invention. After reading the present invention, various equivalent modifications of the present invention by those skilled in the art all fall within the scope defined by the claims attached to this application.

[0026] Please combine Figure 1 and Figure 2 As shown, the test paper paging and binding machine involved in this embodiment mainly includes a housing 1, a paper support table 2, a paper feeding mechanism, a flip plate paper stacking mechanism, an output mechanism, a nail pressing mechanism and a driving mechanism. The rear side of the housing 1 is provided with a plurality of paper feed ports 3 arranged up and down, and the lower part of the front side of the housing 1 is provided with a paper outlet 41. The housing 1 of the test paper paging and binding machine of this embodiment is provided with five paper feed ports 3, so it is suitable for binding test papers of five sheets or less.

[0027] Please further combine Figure 3As shown, the paper support 2, the paper pickup mechanism, the flap paper stacking mechanism, the output mechanism and the nail pressing mechanism are all arranged in the housing 1. The paper support 2 is stacked up and down, and there are five of them, and their positions correspond to the paper inlet 3 one by one. The test paper to be bound is placed on the paper support 2 after entering from the paper inlet 3. The paper pickup mechanism includes five paper pickup wheels 4, and each paper pickup wheel 4 is provided above the front edge of the paper support 2. The two ends of the wheel shaft 5 of the paper pickup wheel 4 are arranged in the shaft seat 6, and the shaft seat 6 is connected to the paper support 2. A paper pressing spring 7 is also provided between the wheel shaft 5 of the paper pickup wheel 4 and the shaft seat 6. The tension of the paper pressing spring 7 can make the paper pickup wheel contact with the topmost paper regardless of the thickness of the paper on the paper support 2. A paper pickup drive wheel group is provided at one end of the wheel shaft 5 of the paper pickup wheel 4 to convert the horizontal axis into the vertical axis. The paper pickup drive wheel group can use a bevel gear structure for axial conversion. The paper pickup drive wheel group includes a vertical shaft 8 and multiple first paper pickup drive wheels 9 on the shaft. A second paper pickup drive wheel 10 is arranged on the wheel shaft 5 of the paper pickup wheel 4. A compression spring 11 is arranged on the top of the vertical shaft 8 so that all the first paper pickup drive wheels 9 can be in close contact with the second paper pickup drive wheel 10.

[0028] Please combine again Figure 4 and Figure 5As shown, a flap stacking mechanism is arranged in front of the paper feeding mechanism, and the function of the flap stacking mechanism is to temporarily store the single paper fed by the paper support 2 and to make each layer of paper fall and stack by turning over the flap 12. Specifically, the flap stacking mechanism includes five flap units and a synchronous structure, and one flap unit corresponds to one paper support 2. Each flap unit includes two flaps 12 arranged opposite to each other on the left and right, and a flap shaft 13 is arranged on the left edge of the flap 12 on the left, and a flap shaft 13 is arranged on the right edge of the flap 12 on the right, and the flap shaft 13 is connected to the housing 1. The function of the synchronous structure is to make the flaps 12 of the upper and lower flap units flip simultaneously, and the synchronous structure includes a left connecting rod 14, a left pressure rod 15, a right connecting rod 16 and a right pressure rod 17. The left connecting rod 14 is hinged with the free ends of all the flaps 12 on the left side, the right connecting rod 16 is hinged with the free ends of the flaps 12 on the right side, the left pressure rod 15 is fixedly connected with the left connecting rod 14, the right pressure rod 17 is fixedly connected with the right connecting rod 16, and the left pressure rod 15 and the right pressure rod 17 are arranged in parallel. There is an overlapping part between the left pressure rod 15 and the right pressure rod 17, and a vertically translatable pressure wheel 18 is arranged at the intersection between the left pressure rod 15 and the right pressure rod 17. A vertical guide groove 19 is arranged on the housing 1, and the pressure wheel 18 is arranged in the guide groove 19. The shaft of the pressure wheel 18 is connected with a spring 20 in a vertical direction, and the spring 20 makes the pressure wheel 18 have a tendency to move upward. Assuming that the driving device directly drives the right flap 12 to flip down, the right connecting rod 16 moves down and to the left, and the right pressure rod 17 also moves down and to the right. At this time, the left pressure rod 15 will be moved down by the pressure wheel 18, and the left pressure rod 15 is connected to the left connecting rod 14, and the left connecting rod 14 is connected to the left flap 12. The left flap can only flip down when the left connecting rod 14 moves down. Therefore, the left pressure rod 15 also moves to the left during the downward movement, and the left connecting rod 14 moves down and to the right accordingly, so that the left flap 12 and the right flap 12 flip down synchronously.

[0029] The output mechanism is a conveyor belt 21, which is arranged below the lowest flap unit of the flap paper stacking mechanism and is used to receive the paper dropped from the flap unit; the nail pressing mechanism is arranged on the side of the conveyor belt 21, and the nail pressing mechanism is provided with a driving wheel 22 and a connecting rod 23. The nail pressing head 24 is provided with an inclined guide groove 25, and a slider is provided in the guide groove 25. One end of the connecting rod 23 is hinged to the wheel surface of the driving wheel 22, and the other end of the connecting rod is hinged to the slider. When the driving wheel 22 rotates, the nail pressing head 24 of the nail pressing mechanism is driven downward by the connecting rod 23, and the paper is stapling is completed with the support of the conveyor belt 21.

[0030] The driving mechanism sequentially drives the pickup wheel 4, the flap 12, the nail pressing mechanism and the conveyor belt 21. Specifically, the driving mechanism includes a groove wheel mechanism 26, a rack 27, an active friction wheel 28, a first friction wheel 29, a second friction wheel 30, a third friction wheel 31 and a fourth friction wheel 32. Figure 6As shown, the outer circumferential surface of the sheave 33 of the sheave mechanism 26 is provided with a meshing portion 33a and a separating portion 33b, the meshing portion 33a is provided with teeth meshing with the rack 27, the separating portion 33b is a smooth surface, and the rotating shaft of the sheave 33 is provided with a one-way bearing. The rack 27 is vertically arranged and penetrated through the vertical guide column 34, and the back side of the rack 27 is connected to the motor 35, the shaft of the motor 35 is vertically arranged, and the motor 35 drives the active friction wheel 28. The spring 36 is sleeved on the vertical guide column 34 and is located below the rack 27. The first friction wheel 29, the second friction wheel 30, the third friction wheel 31 and the fourth friction wheel 32 are all connected to the vertical drive shaft 37 through bearings, and each can rotate independently. The first friction wheel 29 is in contact with the first paper pickup driving wheel 9 for transmission, the second friction wheel 30 is connected to the free end of a flap 12 through a crank connecting rod device 38 to flip the flap 12 downward, the third friction wheel 31 drives the driving wheel 22 of the nail pressing mechanism through the pulley 39 for binding, and the fourth friction wheel 32 drives the conveyor belt 21 to rotate through the speed change mechanism 40.

[0031] When the groove wheel 33 rotates in the gap, the rack 27 drives the active friction wheel 28 to move downward through the meshing portion 33a and the rack 27. The rotation gap of the groove wheel 33 is the contact position of the active friction wheel 28 and the first friction wheel 29. At this time, the first friction wheel 29 is driven to rotate, and then the groove wheel 33 continues to rotate, and the active friction wheel 28 continues to move downward. When the groove wheel 33 comes to the rotation gap again, the active friction wheel 28 contacts the second friction wheel 30, and then moves downward. When the active friction wheel 28 completes contact with the fourth friction wheel 32, the groove wheel 33 rotates again. At this time, the separation portion 33b turns to the rack 27, and the rack 27 moves up to the top position under the action of the spring 26. The groove wheel 33 continues to rotate. When the meshing portion 33a meshes with the rack 27 again, the above process is repeated, so that the active friction wheel 28 completes the cyclic driving of the first friction wheel 29, the second friction wheel 30, the third friction wheel 31 and the fourth friction wheel 32 in sequence.

[0032] The working process of the device is as follows: the test papers are placed on the paper support 2 from top to bottom through the paper inlet 3 in the order of page numbers. After the groove wheel 33 rotates, the active friction wheel 28 drives the first friction wheel 29, and the paper picking mechanism sends a test paper on each paper support 2 into the flipping and stacking mechanism. At this time, each test paper is supported by the left flipping plate 12 and the right flipping plate 12, and the test papers are also layered from top to bottom according to the page numbers. The groove wheel 33 continues to rotate, the active friction wheel drives 28 the second friction wheel 30, and the crank connecting rod mechanism 38 makes the left flipping plate 12 and the right flipping plate 12 flip down synchronously, and all the test papers fall to the surface of the conveyor belt 21. At this time, the test papers have been stacked together according to the order of page numbers. The groove wheel 33 continues to rotate, the active friction wheel 28 disengages from the second friction wheel 30, and drives the third friction wheel 31. After the second friction wheel 30 is not driven, under the force of the spring 20 connected to the shaft of the pressure wheel 18, the flipping plate 12 returns to its initial position. The third friction wheel 31 drives the driving wheel 22 of the nail pressing mechanism to complete the binding. The groove wheel 33 continues to rotate, and finally the active friction wheel 28 drives the fourth friction wheel 32, and the conveyor belt 21 sends the bound test paper out of the paper outlet 41. After the groove wheel 33 continues to rotate, the rack 27 moves up to the top position, and the next round of binding begins, and the cycle continues.

Claims

1. A test paper paging and binding machine, characterized in that: include: A paper support table is provided with a plurality of stacked ones; The paper pickup mechanism includes a plurality of paper pickup wheels, which are arranged above the front edge of each paper support platform and are used to feed the paper on the paper support platform into the flip-plate stacking structure sheet by sheet; The flipping plate stacking mechanism includes a plurality of flipping plate units, each of which corresponds to the paper support platform. The flipping plate unit is arranged at the front side of the paper support platform for receiving paper from the paper support platform. The flipping plate unit includes two flipping plates arranged opposite to each other on the left and right sides. When the flipping plate is flipped downward, the paper received by the flipping plate unit falls down. The output mechanism includes a conveyor belt, which is arranged below the flap stacking mechanism and is used to receive the paper dropped from the flap unit; A nail pressing mechanism is arranged on the side of the conveyor belt, and the nail pressing head of the nail pressing mechanism is used to nail paper when pressed down. The nail pressing mechanism is provided with a driving wheel and a connecting rod, and the nail pressing head is provided with an oblique guide groove, and a slider is provided in the guide groove. One end of the connecting rod is hinged to the wheel surface of the driving wheel, and the other end of the connecting rod is hinged to the slider; and The driving mechanism drives the pickup wheel, the flap, the pressure nail head and the conveyor belt in a circular manner in sequence; the driving mechanism comprises a groove wheel mechanism, a rack, an active friction wheel, and a first friction wheel, a second friction wheel, a third friction wheel and a fourth friction wheel which are coaxially arranged in sequence up and down; when the first friction wheel rotates, the pickup wheel is driven to rotate; when the second friction wheel rotates, the flap is driven to flip down; when the third friction wheel rotates, the pressure nail mechanism is driven to press down; when the fourth friction wheel rotates, the conveyor belt is driven to rotate; when the active friction wheel moves up and down in a gap, it contacts with the first friction wheel, the second friction wheel, the third friction wheel and the fourth friction wheel in a circular manner in sequence and drives the first friction wheel, the second friction wheel, the third friction wheel and the fourth friction wheel to rotate; The outer circumferential surface of the groove wheel of the groove wheel mechanism is provided with an engaging portion and a separating portion, the engaging portion is provided with teeth meshing with the rack, the separating portion is a smooth surface, the rack is vertically arranged, the rack is connected to the active friction wheel, a rebound structure for moving the rack upward is provided below the rack, the rebound structure includes a vertical guide column and a spring, the rack is passed through the vertical guide column, the spring is sleeved on the vertical guide column and is located below the rack.

2. The test paper paging and binding machine according to claim 1, characterized in that: The flip-plate paper stacking mechanism is provided with a synchronization structure, which includes a left connecting rod, a left pressure rod, a right connecting rod and a right pressure rod. The left connecting rod is hinged to the free ends of all the left flip plates, and the right connecting rod is hinged to the free ends of all the right flip plates. The left pressure rod is arranged in parallel with the right pressure rod. The left pressure rod is fixedly connected to the left connecting rod, and the right pressure rod is fixedly connected to the right connecting rod. A vertically movable pressure wheel is provided between the left pressure rod and the right pressure rod.

3. The test paper paging and binding machine according to claim 2, characterized in that: The shaft of the pressure wheel is connected with a spring in the vertical direction.

Images