Positioning mechanism for optical detection paper blocking

Abstract

The utility model belongs to the field of printing, and particularly relates to an optical detection paper blocking and positioning mechanism which comprises a bottom plate, a first fixing mechanism and a second fixing mechanism. The fixing assemblies are arranged in the middles of the first datum line, the second datum line, the third datum line and the fourth datum line on the bottom plate correspondingly, in the using process, the first adjusting screw rod is rotated, the position of each positioning block is adjusted, then a printed matter placed in the positioning datum line frame is fixed to the upper surface of the bottom plate, and the printed matter is prevented from moving; a second fixing mechanism is arranged on the bottom plate, the second fixing mechanism comprises an adjusting plate and a pressing plate, the pressing plate is arranged below the adjusting plate through a connecting assembly, and the height of the adjusting plate is changed, so that a force from top to bottom is applied to the printed matter, and then the printed matter is tightly pressed on the upper surface of the bottom plate; and the position relation between the pressing plate and the adjusting plate can be changed according to the size and the shape of the printed matter, so that the printed matter can be more firmly fixed above the bottom plate through the pressing plate.

Description

Technical Field

[0001] The utility model belongs to the field of printing, and particularly relates to an optical detection paper blocking and positioning mechanism. Background Art

[0002] In the printing industry, ensuring the quality of printed products is crucial. With the continuous development of printing technology and the diversification of market demands, the quality requirements for printed products are getting higher and higher. Especially in the process of high-precision, high-speed, and large-volume printing production, how to ensure the accurate positioning and stable transmission of paper to reduce printing errors and improve production efficiency has become the focus of attention of printing enterprises.

[0003] In the optical detection for printing, as one of the key components, the performance of the paper blocking and positioning mechanism directly affects the accuracy and stability of the detection results. The main function of the paper blocking and positioning mechanism is to fix and position the paper during the printing process, preventing it from shifting or wrinkling during transmission, so as to ensure that the optical detection device can accurately capture the position and status information of the paper. Content of the Utility Model

[0004] To solve the above problems, the utility model proposes an optical detection paper blocking and positioning mechanism to solve the problems mentioned above.

[0005] To achieve the above purpose, the technical solution adopted by the utility model is an optical detection paper blocking and positioning mechanism, including:

[0006] A bottom plate, on the upper surface of which there is a rectangular positioning reference line frame composed of a first reference line, a second reference line, a third reference line, and a fourth reference line;

[0007] A first fixing mechanism, which is composed of four groups of fixing components, and the four groups of fixing components are respectively arranged at the middle positions of the first reference line, the first reference line, the second reference line, the third reference line, and the fourth reference line, and are used to position the printed matter within the reference line frame;

[0008] A second fixing mechanism, which is arranged above the first fixing mechanism. The second fixing mechanism includes an adjusting plate and a pressing plate. The adjusting plate is arranged on the first fixing mechanism, and the pressing plate is arranged below the adjusting plate through a connecting component, and is used to press and fix the printed matter above the bottom plate.

[0009] Further preferably, the fixing component includes a fixing block, a first adjusting screw, and a positioning block. The fixing block is in a long strip shape. The four fixing blocks are respectively fixedly arranged at the middle positions of the first reference line, the second reference line, the third reference line, and the fourth reference line, and each fixing block is parallel to its corresponding reference line. The first adjusting screw is rotatably inserted into the fixing block and is perpendicular to the fixing block. The four first adjusting screws are respectively fixedly provided with positioning blocks at the ends close to each other. Each positioning block is parallel to the fixing block in the same group, and the bottom end of the positioning block is in contact with the upper surface of the bottom plate.

[0010] Further preferably, the second fixing mechanism further includes a mounting seat and a second adjusting screw. The mounting seat is in a U-shaped block structure with an opening downward. The mounting seats are respectively oppositely arranged on the upper surface of the bottom plate and are located outside the first reference line and the second reference line. The rotatable end of the second adjusting screw is inserted into the mounting seat. The adjusting plate is arranged between the two second adjusting screws. The adjusting plate moves above the first adjusting structure by simultaneously rotating the two second adjusting screws.

[0011] Further preferably, the second adjusting screw is composed of a screw main body, a stop block, a connecting pipe, and a fixing cap. The stop block is fixed at the top end of the screw main body. The connecting pipe is fixedly arranged on the upper surface of the stop block. The inner wall of the connecting pipe is provided with internal threads. The outer peripheral wall of the fixing cap is provided with external threads. The fixing cap is connected to the connecting pipe through the internal and external threads and is arranged on the second adjusting screw. The adjusting plate is provided with a first through hole. The adjusting plate passes through the first through hole from below the first through hole through the connecting pipe and is connected to the fixing cap and arranged on the second adjusting screw.

[0012] Further preferably, the connecting component includes a connecting block. The connecting block is a cube. A first groove is opened at the center of the top end of the connecting block. A movable rod is connected in the first groove through a first spring. The movable rod is in a rectangular column structure. Smooth second grooves are opened on the peripheral side walls of the end of the movable rod close to the first spring. Third grooves perpendicular to the first groove are opened on the peripheral side walls of the connecting block. The third grooves communicate with the first groove. Movable clamping members are arranged in the third grooves. The movable clamping members include a first clamping block, a second spring, and a second clamping block. The second spring is arranged between the first clamping block and the second clamping block and is connected to the first clamping block and the second clamping block. The ends of the first clamping block and the second clamping block away from the spring are smooth.

[0013] Further preferably, a second through hole is opened on the adjusting plate. The connecting component is fixed on the lower surface of the adjusting plate, and the end of the movable rod away from the connecting block penetrates through the second through hole.

[0014] Further preferably, two opposite connecting plates are provided on the upper surface of the pressing plate. The two connecting plates are perpendicular to the pressing plate, and the distance between the two connecting plates is equal to the length of the connecting block. A third through hole is provided on the connecting plate.

[0015] Further preferably, on the upper surface of the bottom plate, outside the first reference line and the second reference line, there is a T-shaped sliding strip parallel to the first reference line. At the bottom end of the side wall of the mounting seat, there is a sliding groove matching the sliding strip.

[0016] The beneficial effects of using the present utility model are as follows:

[0017] 1. A rectangular positioning reference line frame composed of a first reference line, a second reference line, a third reference line, and a fourth reference line is provided on the bottom plate. A fixing component is provided at the middle position of each of the first reference line, the second reference line, the third reference line, and the fourth reference line. And the four fixing components form a first fixing mechanism. When in use, rotate the first adjusting screw to adjust the position of each positioning block, and then fix the printed matter placed in the positioning reference line frame on the upper surface of the bottom plate to prevent the printed matter from moving.

[0018] 2. A second fixing mechanism is provided on the bottom plate. The second mechanism includes an adjusting plate and a pressing plate. The pressing plate is arranged below the adjusting plate through a connecting component. By changing the height of the adjusting plate, a downward force is applied to the printed matter, and then the printed matter is tightly pressed on the upper surface of the bottom plate. And according to the size and shape of the printed matter, the positional relationship between the pressing plate and the adjusting plate can be changed, so that the pressing plate can fix the printed matter more firmly above the bottom plate. Description of the Drawings

[0019] Figure 1 It is a schematic diagram of the overall structure of the present utility model;

[0020] Figure 2 It is a schematic diagram of the overall structure of the first fixing mechanism of the present utility model;

[0021] Figure 3 It is a schematic diagram of the overall structure of the second fixing mechanism of the present utility model;

[0022] Figure 4 It is a schematic diagram of the enlarged structure at A of the present utility model;

[0023] Figure 5 It is a schematic diagram of the structure when the connecting component is connected to the pressing plate of the present utility model;

[0024] Figure 6 It is a schematic diagram of the structure when the connecting component is not connected to the pressing plate of the present utility model;

[0025] The reference numerals include:

[0026] 1 - Base plate, 11 - Positioning reference wire frame, 111 - First reference line, 112 - Second reference line, 113 - Third reference line, 114 - Fourth reference line, 12 - Slide bar, 2 - Fixing component, 21 - Fixing block, 22 - First adjusting screw, 23 - Positioning block, 3 - Second fixing mechanism, 31 - Mounting seat, 311 - Chute, 32 - Second adjusting screw, 321 - Screw body, 322 - Stopper, 323 - Connecting pipe, 3231 - Internal thread, 324 - Fixing cap, 3241 - External thread, 33 - Adjusting plate, 331 - First through hole, 332 - Second through hole, 34 - Pressing plate, 341 - Connecting plate, 3411 - Third through hole, 4 - Connecting component, 41 - Connecting block, 411 - First groove, 42 - First spring, 43 - Movable rod, 431 - Second groove, 44 - Third groove, 45 - Movable latch, 451 - First latch, 452 - Second spring, 453 - Second latch. Detailed implementation manners

[0027] To make the objectives, technical solutions, and advantages of the present technical solution clearer and more understandable, the present technical solution will be further described in detail below in combination with specific implementation manners. It should be understood that these descriptions are only exemplary and are not intended to limit the scope of the present technical solution.

[0028] The structures, ratios, sizes, etc. shown in the drawings of this specification are only used to cooperate with the content disclosed in the specification for those familiar with this technology to understand and read, and are not intended to limit the limiting conditions for the implementation of the present utility model. Therefore, they do not have technical essential meanings. Any modification of the structure, change of the proportional relationship, or adjustment of the size, without affecting the effects that the present utility model can produce and the objectives that can be achieved, should still fall within the scope that the technical content disclosed by the present utility model can cover. At the same time, the terms such as "upper", "lower", "left", and "right" cited in this specification are only for the convenience of clear narration and are not intended to limit the scope for the implementation of the present utility model. The change or adjustment of their relative relationships, without substantial change in the technical content, should also be regarded as the scope for the implementation of the present utility model.

[0029] Please refer to Figures 1 to 6 , the present utility model provides an optical detection paper blocking and positioning mechanism, including a base plate 1, a first fixing mechanism, and a second fixing mechanism 3;

[0030] The base plate 1 is a rectangular plate-like structure. On the upper surface of the base plate 1, there is a rectangular positioning reference wire frame 11 composed of a first reference line 111, a second reference line 112, a third reference line 113, and a fourth reference line 114. The first reference line 111 is parallel to the third reference line 113, and the second reference line 112 is parallel to the fourth reference line 114;

[0031] The first fixing mechanism is arranged on the upper surface of the bottom plate 1. The first fixing mechanism is composed of four groups of fixing components 2, and the four groups of fixing components 2 are respectively arranged at the middle positions of the first reference line 111, the first reference line 111, the second reference line 112, the third reference line 113 and the fourth reference line 114.

[0032] Specifically: The fixing component 2 includes a fixing block 21, a first adjusting screw 22 and a positioning block 23. The fixing block 21 is in a long strip shape. The four fixing blocks 21 are respectively and fixedly arranged at the middle positions of the first reference line 111, the second reference line 112, the third reference line 113 and the fourth reference line 114, and each fixing block 21 is parallel to its corresponding reference line. A first adjusting screw 22 is arranged on each fixing block 21. The first adjusting screw 22 is rotatably inserted on the fixing block 21 and is perpendicular to the fixing block 21. Positioning blocks 23 are respectively and fixedly arranged at the ends of the four first adjusting screws 22 close to each other. Each positioning block 23 is parallel to the fixing block 21 of the same group, and the bottom end of the positioning block 23 is in contact with the upper surface of the bottom plate 1. When in use, by rotating the first adjusting screw 22, the position of each positioning block 23 is adjusted, so as to fix the printed matter placed in the positioning reference line frame 11 on the upper surface of the bottom plate 1 and prevent the printed matter from moving.

[0033] The second fixing mechanism 3 is arranged above the first fixing mechanism. The second fixing mechanism 3 includes two U-shaped mounting seats 31 with downward openings arranged oppositely. The two mounting seats 31 are arranged on the upper surface of the bottom plate 1 and are located outside the first reference line 111 and the second reference line 112. A rotatable second adjusting screw 32 is inserted at the top end of the mounting seat 31. An adjusting plate 33 is connected between the two second adjusting screws 32. By simultaneously rotating the two second adjusting screws 32, the height of the adjusting plate 33 is adjusted. A pressing plate 34 is arranged below the adjusting plate 33 through a connecting component 4. When in use, the pressing plate 34 is fixed below the adjusting plate 33 through the connecting component 4, and the two second adjusting screws 32 are simultaneously rotated to adjust the height of the adjusting plate 33, so that the pressing plate 34 can fix printed matters with different thicknesses on the upper surface of the bottom plate 1.

[0034] In this embodiment, the second adjusting screw 32 includes a screw main body 321, a stop block 322, a connecting pipe 323, and a fixing cap 324. The stop block 322 is fixedly welded to the top end of the screw main body 321. The connecting pipe 323 is fixedly welded to the upper surface of the stop block 322. An internal thread 3231 is provided on the inner wall of the connecting pipe 323. An external thread 3241 is provided on the outer peripheral wall of the fixing cap 324. The fixing cap 324 is connected to the connecting pipe 323 through the internal thread 3231 and the external thread 3241. A first through hole 331 is provided on the adjusting plate 325. The connecting pipe 323 passes through the first through hole 331 from below the first through hole 331 and is connected to the fixing cap 324. When the second adjusting screw 32 rotates, the adjusting plate 33 is driven to move.

[0035] In this embodiment, the connecting component 4 includes a connecting block 41. The connecting block 41 is a cube. A first groove 411 is provided at the center of the top end of the connecting block 41. A movable rod 43 is connected in the first groove 411 through a first spring 42. The movable rod 43 has a rectangular columnar structure. Smooth second grooves 431 are provided on the peripheral side walls of the end of the movable rod 43 close to the first spring 42. Third grooves 44 perpendicular to the first groove 411 are provided on the peripheral side walls of the connecting block 41, and the third grooves 44 communicate with the first groove 411. A movable clamping member 45 is provided in the third groove 44. The movable clamping member 45 includes a first clamping block 451, a second spring 452, and a second clamping block 453. The second spring 452 is provided between the first clamping block 451 and the second clamping block 453 and is connected to the first clamping block 451 and the second clamping block 453. The ends of the first clamping block 451 and the second clamping block 453 away from the spring are smooth. A second through hole 332 is provided on the adjusting plate 33. The connecting component 4 is fixed to the lower surface of the adjusting plate 33, and the end of the movable rod 43 away from the connecting block 41 passes through the second through hole 332 and is located above the adjusting plate 33. Two opposite connecting plates 341 are provided on the upper surface of the pressing plate 34. The two connecting plates 341 are perpendicular to the pressing plate 34, and the distance between the two connecting plates 341 is equal to the length of the connecting block 41. A third through hole 3411 is provided on the connecting plate 341. By inserting the connecting block 41 between the two connecting plates 341, the first clamping blocks 451 close to the two connecting plates 341 are inserted into the third through holes 3411, so that the pressing plate 34 is connected to the adjusting plate 33. And the contact position between the inner side wall of the connecting plate 341 and the outer side wall of the connecting block 41 can be changed according to the size and shape of the printed matter, thereby changing the positional relationship between the pressing plate 34 and the adjusting plate 33, so as to tightly press the printed matter on the upper surface of the bottom plate 1;

[0036] When it is necessary to remove the pressing plate 34 from the connecting component 4, by pressing down the movable rod 43, the second groove 431 corresponds to the position of the second clamping block 453 away from one end of the second spring 452. Then, simultaneously push the first clamping blocks 451 on both sides of the connecting plate 341 inward, so that the movable clamping member 45 moves towards the movable rod 43, and continue to squeeze the first clamping blocks 451 inward. At the same time, pull down the connecting plate 341, and the pressing plate 34 can be separated from the connecting member.

[0037] Furthermore, on the upper surface of the bottom plate 1, outside the first reference line 111 and the second reference line 112, there is a T-shaped sliding strip 12 parallel to the first reference line 111. At the bottom end of the side wall of the mounting seat 31, there is a sliding groove 311 matching the sliding strip 12. By sliding the mounting seat 31 on the sliding strip 12, the position of the pressing plate 34 can be changed, and thus the printed matter can be better fixed on the upper surface of the bottom plate 1.

[0038] Working principle:

[0039] During use, first slide the second fixing mechanism 3 to one side of the upper surface of the bottom plate 1 to facilitate the placement of the printed matter in the first fixing mechanism. Then rotate each first adjusting screw 22 so that the positioning blocks 23 gradually approach the edge of the printed matter until the printed matter is fixed between the four positioning blocks 23. Subsequently, install the pressing plate 34 below the adjusting plate 33 through the connecting member, move the mounting seat 31 so that the pressing plate 34 is located at the middle position directly above the printed matter. At this time, simultaneously rotate the second adjusting screw 32 to make the pressing plate 34 gradually move downward to fix the printed matter on the upper surface of the bottom plate 1.

[0040] The above content is only the preferred embodiment of the present utility model. For those of ordinary skill in the art, according to the idea of the present technical content, many changes can be made in the specific implementation manner and application scope. As long as these changes do not depart from the concept of the present utility model, they all belong to the protection scope of this patent.

Claims

1. An optical detection paper stop positioning mechanism, characterized in that: include A bottom plate, the upper surface of which is provided with a rectangular positioning reference line frame composed of a first reference line, a second reference line, a third reference line and a fourth reference line; A first fixing mechanism, the first fixing mechanism is composed of four groups of fixing components, and the four groups of fixing components are respectively arranged at the middle positions of the first reference line, the first reference line, the second reference line, the third reference line and the fourth reference line, for positioning the printed matter within the reference line frame; The second fixing mechanism is arranged above the first fixing mechanism, and the second fixing mechanism includes an adjustment plate and a pressure plate. The adjustment plate is arranged on the first fixing mechanism, and the pressure plate is arranged below the adjustment plate through a connecting component, and is used to press and fix the printed matter above the bottom plate.

2. The optical detection paper stop positioning mechanism according to claim 1, characterized in that: The fixing assembly includes a fixing block, a first adjusting screw and a positioning block. The fixing block is a long block structure. The four fixing blocks are respectively fixedly arranged at the middle positions of the first datum line, the second datum line, the third datum line and the fourth datum line, and each fixing block is parallel to its corresponding datum line. The first adjusting screw is rotatably inserted on the fixing block and is perpendicular to the fixing block. Positioning blocks are respectively fixedly arranged at one end of the four first adjusting screws close to each other. Each positioning block is parallel to the fixing block of the same group, and the bottom end of the positioning block contacts the upper surface of the base plate.

3. The optical detection paper stop positioning mechanism according to claim 1, characterized in that: The second fixing mechanism also includes a mounting seat and a second adjusting screw. The mounting seat is a U-shaped block structure with a downward opening. The mounting seats are respectively arranged on the upper surface of the base plate and are located on the outside of the first reference line and the second reference line. The rotatable end of the second adjusting screw is inserted on the mounting seat. The adjusting plate is arranged between the two second adjusting screws. The adjusting plate moves above the first adjusting structure by rotating the two second adjusting screws at the same time.

4. The optical detection paper stop positioning mechanism according to claim 3, characterized in that: The second adjusting screw is composed of a screw body, a block, a connecting tube and a fixing cap. The block is fixed at the top of the screw body, the connecting tube is fixedly arranged on the upper surface of the block, the inner wall of the connecting tube is provided with an internal thread, the outer peripheral wall of the fixing cap is provided with an external thread, the fixing cap is connected with the external thread and arranged on the connecting tube through the internal thread, a first through hole is provided on the adjusting plate, and the adjusting plate is connected to the fixing cap and arranged on the second adjusting screw through the connecting tube from below the first through hole.

5. The optical detection paper stop positioning mechanism according to claim 1, characterized in that: The connecting assembly includes a connecting block, which is a cube. A first groove is provided at the center of the top of the connecting block. A movable rod is connected to the first groove through a first spring. The movable rod is a rectangular column structure. A smooth second groove is provided on the surrounding side walls of the movable rod near the end of the first spring. A third groove perpendicular to the first groove is provided on the surrounding side walls of the connecting block. The third groove is communicated with the first groove. A movable clamp is provided in the third groove. The movable clamp includes a first clamp, a second spring and a second clamp. The second spring is arranged between the first clamp and the second clamp and connected to the first clamp and the second clamp. The first clamp and the second clamp are smooth at one end away from the spring.

6. The optical detection paper stopper positioning mechanism according to claim 5, characterized in that: A second through hole is formed on the adjusting plate, the connecting assembly is fixed on the lower surface of the adjusting plate, and one end of the movable rod away from the connecting block passes through the second through hole.

7. An optical detection paper stopper positioning mechanism according to claim 5, characterized in that: The upper surface of the pressing plate is provided with two opposite connecting plates, the two connecting plates are perpendicular to the pressing plate and the distance between the two connecting plates is equal to the length of the connecting block, and the connecting plate is provided with a third through hole.

8. The optical detection paper stop positioning mechanism according to claim 1, characterized in that: A T-shaped slide bar parallel to the first reference line is arranged on the upper surface of the bottom plate and outsides of the first reference line and the second reference line, and a slide groove matching the slide bar is arranged at the bottom end of the side wall of the mounting seat.

Images