Braille raised bead positioning and pressure feeding device

Abstract

The utility model discloses a braille raised bead positioning and pressure feeding device which comprises a machine frame, a machine head assembly and a driving assembly, the machine head assembly and the driving assembly are installed on the machine frame, the driving assembly can drive the machine head assembly to move horizontally, the machine head assembly comprises a punching cutter, a punching driver, a braille pen and a braille extrusion driver, a plurality of braille balls are contained in the braille pen, and the braille protruding bead positioning and pressure feeding device is installed on the machine frame. The punching driver can drive the punching cutter to vertically move so that the punching cutter can machine Braille holes in the corresponding positions of the Braille board, and the Braille extrusion driver can drive the Braille pen to vertically move and make Braille beads in the Braille pen be embedded into the Braille holes one by one. The wear resistance of the blind spots is improved, the universality of material selection is improved, meanwhile, the flexibility and diversity of the braille patterns are improved, further, the inlaying mode has higher stability, the problem that the blind spots fall off in different temperature environments is solved, and the reliability is improved.

Description

Technical Field

[0001] This utility model relates to the field of Braille board processing, and in particular to a Braille raised bead positioning and pressing device. Background Technology

[0002] In industries such as printing and advertising, and specialized equipment, Braille printing is sometimes required to meet the needs of different user groups. Currently used technologies include Braille printing, sheet metal punching for blind spots, and applying blind spots using glue dispensing machines.

[0003] Braille printing has the disadvantages of blind spots being easily worn away and smoothed out. Sheet metal punching creates raised blind spots by stamping them onto metal sheets, but this method is only suitable for metal materials and lacks versatility. Applying blind spots with a dispensing machine involves bonding glue-coated particles to sheets or rolls of material; this method has a long production cycle, is limited by the operating environment, and the blind spots are prone to detachment and falling off in high-temperature environments.

[0004] Therefore, how to provide a Braille raised bead positioning and pressing device that avoids falling off and has strong versatility is a technical problem that needs to be solved by those skilled in the art. Utility Model Content

[0005] The purpose of this invention is to provide a Braille raised bead positioning and pressing device. By drilling holes in the Braille board and then embedding the Braille beads into the holes, the wear resistance and versatility are improved, the falling off and wear are prevented, and the reliability is improved.

[0006] To solve the above-mentioned technical problems, this utility model provides a Braille raised bead positioning and pressing device, including a frame and a head assembly and a drive assembly mounted on the frame. The drive assembly can drive the head assembly to move horizontally. The head assembly includes a punching tool, a punching driver, a Braille pen, and a Braille extrusion driver. The Braille pen contains multiple Braille beads. The punching driver can drive the punching tool to move vertically, so that the punching tool processes Braille holes at corresponding positions on the Braille board. The Braille extrusion driver can drive the Braille pen to move vertically, so that each Braille bead in the Braille pen is individually embedded in the Braille hole.

[0007] Preferably, the frame includes horizontally extending transverse guide rails and longitudinal guide rails, with the two transverse guide rails arranged opposite to each other. The two ends of the longitudinal guide rail are respectively mounted on the two transverse guide rails. The head assembly is mounted on the longitudinal guide rail. The drive assembly includes a transverse driver and a longitudinal driver. The transverse driver can drive the longitudinal guide rail to translate along the transverse guide rail, and the longitudinal driver can drive the head assembly to translate along the longitudinal guide rail.

[0008] Preferably, the head assembly includes a base, the punching driver and the Braille extrusion driver are arranged side by side at one end of the base, and the punching cutter and the Braille pen are arranged side by side at the other end of the base.

[0009] Preferably, the base is equipped with a positioning red light that faces the Braille board.

[0010] Preferably, the Braille pen includes a collection cylinder, an inner cylinder, an outer cylinder, and a push rod. The collection cylinder holds the Braille beads. The lower end of the collection cylinder is connected to the upper end of the inner cylinder. The outer cylinder is fitted around the outer periphery of the collection cylinder and the inner cylinder. The lower end of the inner cylinder extends out of the lower opening of the outer cylinder. The inner cylinder has parallelly arranged push holes and guide holes. The push rod is installed in the vertically arranged push holes. The upper opening of the guide hole is connected to the lower end of the collection cylinder, and the lower opening of the guide hole is connected to the side wall of the lower end of the push hole, so that the Braille beads in the collection cylinder enter the lower end of the push hole. The inner cylinder is fixed in position, and the outer cylinder and the push rod move downward synchronously to push a single Braille bead located at the lower end of the push hole out of the lower opening of the push hole and squeeze it into the Braille hole.

[0011] Preferably, two opposing limiting springs are provided on both sides of the lower end of the pushing hole to block the passage of the Braille bead. A gap is provided between the two limiting springs. The Braille bead squeezes the gap, causing the limiting springs to deform and increase the gap to allow a single Braille bead to pass through.

[0012] Preferably, a positioning platform is provided at the lower end of the inner cylinder, and a spring is fitted at the lower end of the inner cylinder. The upper end of the spring abuts against the lower end face of the outer cylinder, and the lower end of the spring abuts against the upper end face of the positioning platform.

[0013] Preferably, a slider is fixedly installed in the middle of the top rod, a groove is provided at the corresponding position on the side wall of the inner cylinder, the outer cylinder is connected to the slider, and the slider can move vertically along the groove.

[0014] Preferably, the opposite ends of the limiting spring are provided with guide slopes.

[0015] Preferably, the upper opening of the push hole is connected to the lower end of the collecting cylinder, and the upper end of the push rod can extend out of the upper opening of the push hole to be inserted into the collecting cylinder.

[0016] This utility model provides a Braille raised bead positioning and pressing device, including a frame and a head assembly and a drive assembly mounted on the frame. The drive assembly can drive the head assembly to move horizontally. The head assembly includes a punching tool, a punching driver, a Braille pen, and a Braille extrusion driver. The Braille pen contains multiple Braille beads. The punching driver can drive the punching tool to move vertically, so that the punching tool processes Braille holes at corresponding positions on the Braille board. The Braille extrusion driver can drive the Braille pen to move vertically, so that the Braille beads in the Braille pen are individually embedded in the Braille holes.

[0017] During operation, the control head assembly moves to the corresponding position on the Braille board, drills holes in the Braille board using a drilling tool, and then embeds Braille beads into the holes using a Braille pen. The control head assembly feeds the Braille beads one by one and installs them into predetermined positions through an automatic positioning and extrusion dotting method. This improves the wear resistance of the blind spots, increases the versatility of material selection, and enhances the flexibility and diversity of Braille patterns. Furthermore, the embedding method provides higher stability, avoids the problem of blind spots falling off under different temperature conditions, and improves reliability. Attached Figure Description

[0018] Figure 1 A schematic diagram of a specific embodiment of the Braille raised bead positioning and pressing device provided by this utility model;

[0019] Figure 2 This is a front view schematic diagram of a specific embodiment of the Braille raised bead positioning and pressing device provided by this utility model;

[0020] Figure 3 This is a schematic diagram of the head assembly in a specific embodiment of the Braille raised bead positioning and pressing device provided by this utility model.

[0021] Figure 4 This is a schematic diagram of the structure of a Braille pen in a specific embodiment of the Braille raised bead positioning and pressing device provided by this utility model.

[0022] Figure 5 A schematic diagram of the ejection of a Braille bead in a specific embodiment of the Braille raised bead positioning and pressing device provided by this utility model.

[0023] Figure 6 This is a schematic diagram of the structure of a Braille pen in another specific embodiment of the Braille raised bead positioning and pressing device provided by this utility model.

[0024] The components include: 1. Head assembly; 2. Drilling tool; 3. Drilling driver; 4. Braille pen; 5. Braille extrusion driver; 6. Horizontal guide rail; 7. Vertical guide rail; 8. Horizontal driver; 9. Vertical driver; 10. Base; 11. Positioning red light; 12. Collection cylinder; 13. Inner cylinder; 14. Outer cylinder; 15. Top rod; 16. Limiting spring; 17. Positioning table; 18. Spring; 19. Slider; 20. Braille ball; 21. Braille plate. Detailed Implementation

[0025] The core of this utility model is to provide a Braille raised bead positioning and pressing device, which improves wear resistance and versatility by drilling holes in the Braille plate and then embedding the Braille beads into the holes, avoiding falling off and wear, and improving reliability.

[0026] To enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0027] Please refer to Figures 1 to 6 , Figure 1 A schematic diagram of a specific embodiment of the Braille raised bead positioning and pressing device provided by this utility model; Figure 2 This is a front view schematic diagram of a specific embodiment of the Braille raised bead positioning and pressing device provided by this utility model; Figure 3 This is a schematic diagram of the head assembly in a specific embodiment of the Braille raised bead positioning and pressing device provided by this utility model. Figure 4 This is a schematic diagram of the structure of a Braille pen in a specific embodiment of the Braille raised bead positioning and pressing device provided by this utility model. Figure 5 A schematic diagram of the ejection of a Braille bead in a specific embodiment of the Braille raised bead positioning and pressing device provided by this utility model. Figure 6 This is a schematic diagram of the structure of a Braille pen in another specific embodiment of the Braille raised bead positioning and pressing device provided by this utility model.

[0028] This utility model provides a Braille bead positioning and pressing device, including a frame and a head assembly 1 and a drive assembly mounted on the frame. The frame is horizontally arranged, and the Braille board 21 to be processed is placed below the frame. The head assembly 1 and the drive assembly are mounted above the frame. The head assembly 1 includes a punching tool 2, a punching driver 3, a Braille pen 4, and a Braille extrusion driver 5. The Braille pen 4 contains multiple Braille beads 20. The drive assembly can drive the head assembly 1 to move horizontally relative to the frame. The horizontal movement of the head assembly 1 is equivalent to the horizontal movement of the punching tool 2, the punching driver 3, the Braille pen 4, and the Braille extrusion driver 5, so that the punching tool 2 and the Braille pen 4 move to the corresponding positions on the Braille board 21. Furthermore, the punching driver 3 cooperates with the punching tool 2, enabling the punching tool 2 to move vertically, bringing it closer to or away from the Braille board 21. After the punching tool 2 moves closer to the Braille board 21, it can machine Braille holes at corresponding positions on the Braille board 21. Similarly, the Braille extrusion driver 5 cooperates with the Braille pen 4, enabling the Braille pen 4 to move vertically, bringing it closer to or away from the Braille board 21. After the Braille pen 4 moves closer to the Braille board 21, it can individually embed the Braille beads 20 inside the Braille pen 4 into the Braille holes.

[0029] The Braille bead 20 can be made of various materials such as steel balls, ABS, and acrylic. When the weight of the Braille bead 20 is small, a weight close to its inner diameter is added to the Braille pen 4 to ensure the smooth drop of the Braille bead 20. The Braille board 21 can be made of various materials such as SPCC, stainless steel, acrylic, ABS, and KT board. For special boards, such as soft materials, glue needs to be added after drilling to ensure reliable fixation between the Braille bead 20 and the Braille hole.

[0030] During operation, the control head assembly 1 moves to the corresponding position of the Braille board 21, and the drilling tool 2 drills holes in the Braille board 21. Then, the Braille pen 4 inserts the Braille beads 20 into the Braille holes. The control head assembly 1 feeds the Braille beads 20 one by one and installs them into the predetermined positions through an automatic positioning and extrusion dotting method. This can improve the wear resistance of the blind spots, improve the versatility of material selection, and improve the flexibility and diversity of Braille patterns. Furthermore, the inlay method has higher stability, avoids the problem of blind spots falling off under different temperature environments, and improves reliability.

[0031] In the Braille raised bead positioning and pressing device provided in this specific embodiment of the utility model, in order to achieve the horizontal movement of the head assembly 1, the frame includes a transverse guide rail 6 and a longitudinal guide rail 7. Both the transverse guide rail 6 and the longitudinal guide rail 7 extend horizontally, and their extension directions are perpendicular to each other. Specifically, two transverse guide rails 6 can be arranged side by side, and the two transverse guide rails 6 are arranged opposite each other. The two transverse guide rails 6 are parallel to each other and extend horizontally, and there is a gap between the two transverse guide rails 6. Further, a support beam is provided between the same ends of the two transverse guide rails 6 to ensure the stability of the distance between the two transverse guide rails 6. The longitudinal guide rail 7 spans the two transverse guide rails 6, that is, the two ends of the longitudinal guide rail 7 are respectively installed on the two transverse guide rails 6, and the head assembly 1 is installed on the longitudinal guide rail 7. The drive assembly includes a transverse driver 8 and a longitudinal driver 9. The transverse driver 8 can drive the longitudinal guide rail 7 to translate along the transverse guide rail 6, and the longitudinal driver 9 can drive the head assembly 1 to translate along the longitudinal guide rail 7. The horizontal movement in the X and Y axes is achieved in the above manner, so that the punching tool 2 and the Braille pen 4 can be moved to align with the corresponding positions of the Braille board 21.

[0032] Specifically, the longitudinal guide rail 7 has slides at both ends that mate with the transverse guide rail 6, and the head assembly 1 has a slide that mates with the center guide rail. The transverse drive 8 and the longitudinal drive 9 can employ various driving methods. A traction structure connecting the slides of the longitudinal guide rail 7 is provided on the transverse guide rail 6. The traction structure can be a traction rope or a transmission belt, etc. The transverse drive 8 is located at one end of the transverse guide rail 6 and connected to the traction structure, providing power for the movement of the slides. Furthermore, a transmission rod is provided between the two transverse guide rails 6 to allow the traction structures at both ends to move synchronously. Similarly, a traction structure connecting the slides of the head assembly 1 is provided on the longitudinal guide rail 7. The traction structure can be a traction rope or a transmission belt, etc. The longitudinal drive 9 is located at one end of the longitudinal guide rail 7 and connected to the traction structure, providing power for the movement of the slides. Other driving methods can also be used, such as the transverse drive 8 being mounted on the longitudinal guide rail 7 and moving synchronously with it, and the longitudinal drive 9 being mounted on the head assembly 1 and moving synchronously with it.

[0033] In the Braille raised bead positioning and pressing device provided in this specific embodiment of the utility model, the machine head assembly 1 includes a base 10, a punching driver 3 and a Braille extrusion driver 5 arranged side by side at one end of the base 10, and a punching cutter 2 and a Braille pen 4 arranged side by side at the other end of the base 10. The base 10 provides stable support for the above-mentioned components. At the same time, the punching driver 3 and the Braille extrusion driver 5 can be electric cylinders or hydraulic cylinders to provide power for the vertical movement of the punching cutter 2 and the Braille pen 4, that is, to realize vertical movement in the Z-axis direction. Specifically, ear plates can be respectively provided on the same side of the punching driver 3 and the Braille extrusion driver 5, and the punching cutter 2 and the Braille pen 4 are mounted on the corresponding ear plates. Preferably, a positioning red light 11 facing the Braille plate 21 is installed on the base 10 to provide positioning during the horizontal movement of the machine head assembly 1.

[0034] Based on the Braille raised bead positioning and pressing device provided in the above specific embodiments, the Braille pen 4 includes a coaxially arranged collecting cylinder 12, inner cylinder 13, outer cylinder 14, and push rod 15. The collecting cylinder 12 contains Braille beads 20. The lower end of the collecting cylinder 12 is connected to the upper end of the inner cylinder 13. The outer cylinder 14 is fitted onto the outer periphery of the collecting cylinder 12 and the inner cylinder 13. The lower end of the inner cylinder 13 extends out of the lower opening of the outer cylinder 14. The inner cylinder 13 has parallelly arranged pushing holes and guiding holes. The push rod 15 is installed in the vertically arranged pushing holes and can move vertically along the pushing holes. The upper opening of the guiding holes connects to the collecting cylinder. At the lower end of the cylinder 12, the lower opening of the guide hole connects to the side wall of the lower end of the push hole, allowing the Braille beads 20 inside the collecting cylinder 12 to enter the guide hole and flow downwards along it. The lower end of the guide hole has a bend towards the push hole. Multiple Braille beads 20 are arranged sequentially within the guide hole. After the bend, only one Braille bead 20 at a time reaches the lower opening of the push hole from the side wall. The inner cylinder 13 is fixed in position, while the outer cylinder 14 and the push rod 15 can move downwards synchronously to push the single Braille bead 20 located at the lower end of the push hole out of the lower opening and be pressed into the Braille hole. The collecting cylinder 12 is a tubular component with openings at both the top and bottom. The lower end connects to the inner cylinder 13, and the upper end has a removable cap. Opening the cap allows for the addition of additional Braille beads 20.

[0035] To prevent the Braille bead 20 from falling freely from the lower opening of the push hole, two opposing limiting springs 16 are provided on both sides of the lower end of the push hole. Under normal conditions, the two limiting springs 16 are close to each other, preventing the Braille bead 20 from passing through. A gap is provided between the two limiting springs 16, with the lowermost Braille bead 20 located in the gap. The lower side of this Braille bead 20 contacts the limiting spring 16, and the upper side contacts the lower end of the push rod 15. The push rod 15 moves downward, pushing the lowermost Braille bead 20 to compress the gap, deforming the limiting spring 16, and widening the gap. The lowermost single Braille bead 20 passes through the gap and moves out from the lower opening of the push hole, entering the corresponding Braille hole at the lower opening of the push hole. At this time, the push rod 15 continues to move downward, allowing the Braille bead 20 to be embedded in the Braille hole. Furthermore, guide ramps are provided at the opposite ends of the limiting springs 16 to allow the Braille bead 20 to pass smoothly. Through the above methods, the overall structure is lighter and operates more smoothly.

[0036] In the Braille raised bead positioning and pressing device provided in this specific embodiment of the utility model, a positioning platform 17 is provided at the lower end of the inner cylinder 13, and a spring 18 is fitted at the lower end of the inner cylinder 13. The upper end of the spring 18 abuts against the lower end face of the outer cylinder 14, and the lower end of the spring 18 abuts against the upper end face of the positioning platform 17. During the downward movement of the outer cylinder 14 and the push rod 15, the spring 18 is compressed. When the downward force is removed, the spring 18 extends, pushing the outer cylinder 14 and the push rod 15 to return to their original positions. In one embodiment, the positioning platform 17 is integrally formed with the lower end of the inner cylinder 13; in another embodiment, the positioning platform 17 and the inner cylinder 13 are separate components.

[0037] To enable the outer cylinder 14 and the push rod 15 to move synchronously, a slider 19 is fixedly installed in the middle of the push rod 15. A corresponding groove is provided on the side wall of the inner cylinder 13. The outer cylinder 14 is connected to the slider 19, and the slider 19 can move vertically along the groove. Preferably, the upper opening of the push hole is connected to the lower end of the collecting cylinder 12, and the upper end of the push rod 15 can extend out of the upper opening of the push hole to be inserted into the collecting cylinder 12.

[0038] The working method of the head assembly 1 is as follows: The head assembly 1, established on a rectangular coordinate system, should have no fewer than two head positions, and the alignment of the working center has been achieved. The positions of the Braille characters are input into the computer. Using a drill bit of the corresponding diameter, the drilling tool 2 is controlled to drill holes at the designated positions on the Braille board 21. The drilling depth is D / 2-K, where D is the diameter of the Braille bead 20, and K is the adjustment displacement for different materials. The Braille pen 4 is controlled for alignment. The Braille pen 4 is moved downwards, pressing the Braille bead 20 into the center of the Braille hole, maintaining a height of D / 2-K / 2. After filling all the holes, tactile Braille characters are formed.

[0039] Braille pen 4 working method: The head moves to the designated position. The outer cylinder 14 moves downward, simultaneously driving the inner cylinder 13 downward. When the lower end of the inner cylinder 13 contacts the upper surface of the Braille plate 21, the lead screw of the Braille extrusion driver 5 continues to move downward, and the slider 19 drives the push rod 15 downward. The spring 18 is compressed, and the slider 19 drives the push rod 15 to continue moving downward. The small spherical surface concave at the center of the lower end face of the push rod 15 pushes the Braille ball 20 downward until it reaches the appropriate position of the Braille hole on the Braille plate 21, ensuring that the Braille ball 20 can be retained in the Braille hole. The lead screw moves in the opposite direction. Due to the action of the spring 18, the slider 19 moves upward, driving the push rod 15 upward. When the slider 19 reaches the upper groove surface of the inner cylinder 13, the size of the front end of the push rod 15 and the front end of the push hole in the inner cylinder 13 continuously increases, so that there is a position inside that is larger than the diameter of the steel ball of the Braille ball 20. The subsequent Braille ball 20 is sent to the front end of the push rod 15. Thanks to the limiting springs 16 on both sides, the Braille beads 20 will not fall out of the push hole. As the lead screw continues to rise, the pen tip at the lower end of the inner cylinder 13 detaches from the surface of the Braille plate 21 and reaches the moving height, ready for the next operation. The other end of the push rod 15 can effectively agitate the Braille beads 20 in the collecting cylinder 12, allowing the material to enter the guide hole normally.

[0040] The Braille raised bead positioning and pressing device provided by this utility model has been described in detail above. Specific examples have been used to illustrate the principle and implementation of this utility model. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core idea of ​​this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the principle of this utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A Braille raised bead positioning and pressing device, characterized in that, The device includes a frame and a head assembly (1) and a drive assembly mounted on the frame. The drive assembly can drive the head assembly (1) to move horizontally. The head assembly (1) includes a punching tool (2), a punching driver (3), a Braille pen (4), and a Braille extrusion driver (5). The Braille pen (4) contains a plurality of Braille beads (20). The punching driver (3) can drive the punching tool (2) to move vertically, so that the punching tool (2) processes Braille holes at corresponding positions on the Braille plate (21). The Braille extrusion driver (5) can drive the Braille pen (4) to move vertically, so that the Braille beads (20) in the Braille pen (4) are individually embedded in the Braille holes.

2. The Braille raised bead positioning and pressing device according to claim 1, characterized in that, The frame includes horizontally extending transverse guide rails (6) and longitudinal guide rails (7), with the two transverse guide rails (6) arranged opposite to each other. The two ends of the longitudinal guide rails (7) are respectively mounted on the two transverse guide rails (6). The head assembly (1) is mounted on the longitudinal guide rails (7). The drive assembly includes a transverse driver (8) and a longitudinal driver (9). The transverse driver (8) can drive the longitudinal guide rails (7) to translate along the transverse guide rails (6), and the longitudinal driver (9) can drive the head assembly (1) to translate along the longitudinal guide rails (7).

3. The Braille raised bead positioning and pressing device according to claim 2, characterized in that, The head assembly (1) includes a base (10), the punch driver (3) and the Braille extrusion driver (5) are arranged side by side at one end of the base (10), and the punch cutter (2) and the Braille pen (4) are arranged side by side at the other end of the base (10).

4. The Braille raised bead positioning and pressing device according to claim 3, characterized in that, The base (10) is equipped with a positioning red light (11) facing the Braille board (21).

5. The Braille raised bead positioning and pressing device according to any one of claims 1 to 4, characterized in that, The Braille pen (4) includes a collection cylinder (12), an inner cylinder (13), an outer cylinder (14), and a push rod (15). The collection cylinder (12) contains the Braille beads (20). The lower end of the collection cylinder (12) is connected to the upper end of the inner cylinder (13). The outer cylinder (14) is fitted around the outer periphery of the collection cylinder (12) and the inner cylinder (13). The lower end of the inner cylinder (13) extends out of the lower opening of the outer cylinder (14). The inner cylinder (13) has parallel push holes and guide holes arranged inside. The push rod (15) is mounted on... The upper opening of the guide hole is connected to the lower end of the collection cylinder (12), and the lower opening of the guide hole is connected to the side wall of the lower end of the push hole, so that the Braille bead (20) in the collection cylinder (12) enters the lower end of the push hole. The inner cylinder (13) is fixed in position, and the outer cylinder (14) and the push rod (15) move downward synchronously to push the single Braille bead (20) located at the lower end of the push hole out from the lower opening of the push hole and squeeze it into the Braille hole.

6. The Braille raised bead positioning and pressing device according to claim 5, characterized in that, Two opposing limiting springs (16) are provided on both sides of the lower end of the push hole, which can block the passage of the Braille bead (20). A gap is provided between the two limiting springs (16). The Braille bead (20) squeezes the gap, causing the limiting springs (16) to deform and increase the gap for a single Braille bead (20) to pass through.

7. The Braille raised bead positioning and pressing device according to claim 6, characterized in that, The lower end of the inner cylinder (13) is provided with a positioning platform (17), and a spring (18) is fitted on the lower end of the inner cylinder (13). The upper end of the spring (18) abuts against the lower end face of the outer cylinder (14), and the lower end of the spring (18) abuts against the upper end face of the positioning platform (17).

8. The Braille raised bead positioning and pressing device according to claim 7, characterized in that, A slider (19) is fixedly installed in the middle of the top rod (15), and a groove is provided on the side wall of the inner cylinder (13) at the corresponding position. The outer cylinder (14) is connected to the slider (19), and the slider (19) can move vertically along the groove.

9. The Braille raised bead positioning and pressing device according to claim 8, characterized in that, The limiting spring (16) has a guide slope at its opposite end.

10. The Braille raised bead positioning and pressing device according to claim 5, characterized in that, The upper opening of the push hole is connected to the lower end of the collecting cylinder (12), and the upper end of the push rod (15) can extend out of the upper opening of the push hole to be inserted into the collecting cylinder (12).

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