Feeding length sensor of linear plate forming machine

Abstract

The invention provides a wire plate forming machine feeding length sensor which comprises a material receiving sensor and an internal thread hard sleeve, a telescopic head extending out in a telescopic mode is arranged on the end face of the front end of the material receiving sensor, and a sensing element is arranged in the material receiving sensor to sense the telescopic state of the telescopic head and send out an electrical signal through a tail end signal line. An internal thread hard sleeve is arranged on the outer side of the material receiving sensor threaded sleeve and connected to the front end of the material receiving sensor through threads, a through hole is formed in the center of the end face of the internal thread hard sleeve, the telescopic head extends out of the through hole, the internal thread hard sleeve serves as hard limiting, and overlong feeding is prevented; and the telescopic head of the material receiving sensor is used as an alarm signal source during short line, so that a sensor signal cannot be triggered when the material is fed too short, the equipment does not perform the next action and gives an alarm, and only when the signal is triggered, the equipment performs the next action, so that bad products caused by too short material feeding are avoided, and the device has a good development prospect.

Description

Technical Field

[0001] This invention relates to the field of sensors, specifically to a feeding length sensor for a wire sheet forming machine. Background Technology

[0002] In the production process of online sheet forming machine (button machine), a certain length of material needs to be pushed each time during processing. The material goes through bending and other processes to form a product. However, if the pushing length is inaccurate, the size of the product will be affected, and if it exceeds the tolerance, quality problems will occur.

[0003] Since the feeding relies on mechanical clamping and pushing, if the structure wears or slips, the feeding length will be unstable. Currently, this is solved by setting a hard limit structure at the end of the feeding stroke to prevent the feeding from being too long. However, if the feeding is too short when slipping, it cannot be avoided. The only way to remedy this is to replace the clamping structure of the opening and closing mechanism or adjust the swing arm stroke. However, this will still lead to a large number of defective products before the problem is discovered.

[0004] Therefore, a new type of feeding length sensor for wire sheet forming machines is needed to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to provide a feeding length sensor for a wire sheet forming machine.

[0006] To achieve the above objectives, the present invention provides the following technical solution: A feeding length sensor for a wire sheet forming machine includes a receiving sensor and an internally threaded hard sleeve. The receiving sensor consists of a threaded sleeve, a signal line, and a telescopic head. The threaded sleeve is a hollow sleeve structure with a threaded structure protruding from its circumference. A telescopic head protrudes from the front end face. The threaded sleeve contains a sensing element that senses the extension and retraction state of the telescopic head and emits an electrical signal through the signal line at the tail end. An internally threaded hard sleeve is threadedly connected to the front end of the receiving sensor on the outside of the threaded sleeve. A through hole is provided in the center of the end face of the internally threaded hard sleeve, and the telescopic head protrudes from the through hole.

[0007] As a further embodiment of the present invention, a fixing nut is provided on the outer side of the threaded sleeve and is threadedly connected to the threaded sleeve.

[0008] As a further aspect of the present invention: a guide sleeve is sandwiched between the fixing nut and the internally threaded hard sleeve. The guide sleeve consists of a washer sandwiched between the fixing nut and the internally threaded hard sleeve and a guide plate extending from the washer to the lower half of the front end of the internally threaded hard sleeve. The guide plate forms a funnel-shaped structure at the front end of the internally threaded hard sleeve.

[0009] As a further aspect of the present invention: a set of protruding inclined limit buckles are symmetrically arranged on the gasket along the center, and a corresponding groove structure is provided at the end face of the internally threaded hard sleeve.

[0010] As a further aspect of the present invention: a ball bearing is rotatably provided at the front end of the guide plate, and a funnel structure is formed at the front end of the guide plate through the arc surface of the ball bearing.

[0011] As a further aspect of the present invention: the guide plate is divided into a main guide plate and a secondary guide plate. The main guide plate is located directly below the internally threaded hard sleeve, while the secondary guide plates are located on both sides of the main guide plate. The length of the main guide plate is longer than that of the secondary guide plate.

[0012] As a further aspect of the present invention: the pivot of the ball on the main flow plate is eccentrically set, and a torsion spring is sleeved on the pivot to act on the ball, so that the ball maintains the initial angle with the eccentric direction facing upward.

[0013] As a further aspect of the present invention: the outer edge of the end face of the internally threaded hard sleeve is provided with a funnel-shaped structure facing the center point of the end face.

[0014] As a further aspect of the present invention, an opening is made above the funnel structure on the end face of the internally threaded hard sleeve. Beneficial effects

[0015] 1. The outer side of the threaded sleeve of the receiving sensor of the present invention has an internally threaded hard sleeve that is threadedly connected to the front end of the receiving sensor. A through hole is provided in the center of the end face of the internally threaded hard sleeve, and the telescopic head protrudes from the through hole. The internally threaded hard sleeve acts as a hard limit to prevent the feeding from being too long. The telescopic head of the receiving sensor acts as an alarm signal source when the material is fed too short. When the material is fed too short, the sensor signal will not be triggered, the equipment will not perform the next action and will not alarm. Only when the signal is triggered will the equipment perform the next action, thus avoiding product defects caused by feeding too short.

[0016] 2. In this invention, a guide sleeve is sandwiched between the fixing nut and the internally threaded hard sleeve. The guide sleeve consists of a washer sandwiched between the fixing nut and the internally threaded hard sleeve and a guide plate extending from the washer to the lower half of the front end of the internally threaded hard sleeve. The guide plate forms a funnel-shaped structure at the front end of the internally threaded hard sleeve. The guide plate at the bottom guides the end of the fed material to be centered, improving its limiting accuracy and eliminating end sagging caused by gravity. This avoids irregular wear on the end face of the internally threaded hard sleeve due to the eccentric material at the end during the subsequent bending process.

[0017] 3. In this invention, the rotating shaft of the ball bearing on the main guide plate is eccentrically set, and a torsion spring is sleeved on the rotating shaft to act on the ball bearing, so that the ball bearing maintains an initial angle with the eccentric direction facing upward. By eccentrically setting the ball bearing on the main guide plate, the contact point between the ball bearing on the main guide plate and the material is further away from the axis of the receiving sensor than the contact point between the ball bearing on the secondary guide plate and the material. This conforms to the characteristic of the material end drooping under the influence of gravity, reduces hard contact between the ball bearing and the material, and reduces ball bearing wear. At the same time, due to the eccentric setting of the ball bearing, after being driven by the friction of the material, it will generate eccentric rotation, which will drive the material end to move upward, playing a supporting role in centering the material end. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0019] Figure 2 This is an exploded view of the overall structure of the present invention.

[0020] Figure 3 This is a schematic diagram of the material receiving sensor structure of the present invention.

[0021] Figure 4 This is a schematic diagram of the internal threaded hard sleeve structure of the present invention.

[0022] Figure 5 This is a schematic diagram of the flow guide sleeve structure of the present invention.

[0023] Figure 6 This is a schematic diagram showing the lengths of the main guide vane and the secondary guide vane of the present invention.

[0024] Figure 7 This is an exploded view of the flow guide sleeve structure of the present invention.

[0025] Figure 8 This is a schematic diagram of the main flow plate ball structure of the present invention.

[0026] Figure 1-8 In the middle: 1. Material receiving sensor; 11. Threaded sleeve; 12. Signal line; 13. Telescopic head; 2. Internal threaded hard sleeve; 3. Fixing nut; 4. Flow guide sleeve; 41. Gasket; 42. Limit buckle; 43. Main flow guide plate; 44. Secondary flow guide plate; 45. Ball bearing; 46. Reset torsion spring. Detailed Implementation

[0027] The following description, in conjunction with the accompanying drawings, will illustrate the present invention. Figures 1-8 The specific technical solutions of the present invention will be clearly and completely described. Please see Figures 1-8 , Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present invention; Figure 2 This is an exploded view of the overall structure of the present invention; Figure 3This is a schematic diagram of the material receiving sensor structure of the present invention; Figure 4 This is a schematic diagram of the internally threaded hard sleeve structure of the present invention; Figure 5 This is a schematic diagram of the flow guide sleeve structure of the present invention; Figure 6 This is a schematic diagram showing the lengths of the main guide vane and the secondary guide vane of the present invention; Figure 7 This is an exploded view of the flow guide sleeve structure of the present invention; Figure 8 This is a schematic diagram of the main flow plate ball structure of the present invention.

[0028] This embodiment provides a feeding length sensor for a wire sheet forming machine, including a receiving sensor 1 and an internally threaded hard sleeve 2. The receiving sensor 1 consists of a threaded sleeve 11, a signal line 12, and a telescopic head 13. The threaded sleeve 11 is a hollow sleeve structure with a threaded structure protruding from its circumference. The front end face has a telescopic head 13 that extends outward. The threaded sleeve 11 has a built-in sensing element that senses the extension and retraction state of the telescopic head 13 and sends an electrical signal through the tail end signal line 12. The external side of the threaded sleeve 11 of the receiving sensor 1 has an internally threaded hard sleeve 2 that is threadedly connected to the front end of the receiving sensor 1. The end face of the internally threaded hard sleeve 2 has a through hole in the center, and the telescopic head 13 protrudes from the through hole. The internally threaded hard sleeve 2 serves as a hard limit to prevent excessive feeding. The telescopic head 13 of the receiving sensor 1 acts as an alarm signal source when the material is fed too short. When the material is fed too short, the sensor signal will not be triggered, and the equipment will not perform the next action or alarm. Only when the signal is triggered will the equipment perform the next action, thus avoiding product defects caused by insufficient feeding.

[0029] The threaded sleeve 11 is also provided with a fixing nut 3 on the outside, which is threadedly connected to the threaded sleeve 11. This allows the internal thread hard threaded sleeve 11 to be locked from the tail end, preventing loosening. At the same time, the position of the internal thread hard sleeve 2 can be adjusted to control the extension length of the telescopic head 13.

[0030] Specifically, a guide sleeve 4 is sandwiched between the fixing nut 3 and the internally threaded hard sleeve 2. The guide sleeve 4 consists of a gasket 41 sandwiched between the fixing nut 3 and the internally threaded hard sleeve 2 and a guide plate extending from the gasket 41 to the lower half of the front end of the internally threaded hard sleeve 2. The guide plate forms a funnel-shaped structure at the front end of the internally threaded hard sleeve 2. The bottom guide plate guides the end of the fed material to be centered, which improves its limiting accuracy and eliminates the end sagging caused by gravity. This avoids irregular wear on the end face of the internal thread hard sleeve 2 due to the eccentric material at the end during the subsequent bending process.

[0031] Furthermore, a set of protruding inclined limit buckles 42 are symmetrically arranged on the gasket 41 along the center, and a corresponding groove structure is provided at the end face of the internal thread hard sleeve 2, thereby limiting the angle and position between the flow guide sleeve 4 and the internal thread hard sleeve 2 and improving its flow guiding effect.

[0032] Furthermore, the front end of the deflector is provided with rotatable balls 45. The arc surface of the balls 45 forms a funnel structure at the front end of the deflector, thereby reducing wear and extending the life of the deflector through the rolling friction of the balls 45.

[0033] Furthermore, the guide vane is divided into a main guide vane 43 and a secondary guide vane 44. The main guide vane 43 is located directly below the internally threaded hard sleeve 2, while the secondary guide vane 44 is located on both sides of the main guide vane 43. The length of the main guide vane 43 is longer than that of the secondary guide vane 44. This ensures that the balls 45 of the main flow plate 43 will preferentially contact the material, adapting to the characteristic that the material end is easily affected by gravity and sags, and first guides and centers the direction most prone to eccentricity.

[0034] Furthermore, the pivot of the ball 45 on the main flow plate 43 is eccentrically set, and a torsion spring is sleeved on the pivot to act on the ball 45, so that the ball 45 maintains the initial angle with the eccentric direction facing upward. By eccentrically adjusting the ball bearings 45 on the main guide vane 43, the contact point between the ball bearings 45 and the material on the main guide vane 43 is further away from the axis of the receiving sensor 1 than the contact point between the ball bearings 45 and the material on the secondary guide vane 44. This conforms to the characteristic of the material end drooping due to gravity, reducing hard contact between the ball bearings 45 and the material, and reducing wear on the ball bearings 45. At the same time, due to the eccentric setting of the ball bearings 45, after being driven by the friction of the material, eccentric rotation will occur, causing the material end to move upward, which plays a supporting role in centering the material end.

[0035] Among them, the outer edge of the end face of the internal thread hard sleeve 2 is provided with a funnel-shaped structure facing the center point of the end face. The inclined surface of the funnel is used to center the end of the material, reducing the error in the material's limiting length caused by eccentricity, and also improving the triggering accuracy of the material to the telescopic head 13.

[0036] Specifically, an opening is made above the funnel structure on the two end faces of the internally threaded hard sleeve; This provides a discharge port for the funnel structure at the end face of the internally threaded hard sleeve 2, facilitating material discharge and preventing significant wear between the material end face and the funnel structure of the internally threaded hard sleeve 2 during subsequent material bending, which could affect the centering and positioning accuracy of the funnel structure.

[0037] When implementing the technical solution described in this embodiment, the wire is pushed by the feeding mechanism and moves along the predetermined track to the sensor position. After the end of the wire contacts the telescopic head 13, it drives the telescopic head 13 to retract and then abut against the end face of the internal thread hard sleeve 2 to limit the feeding length. The telescopic head 13 of the receiving sensor 1 serves as an alarm signal source when the wire is too short. When the material is fed too short, the sensor signal will not be triggered, the equipment will not perform the next action and will not alarm. Only when the signal is triggered will the equipment perform the next action to avoid product defects caused by feeding too short.

Claims

1. A wire sheet forming machine feed length sensor characterized by, The utility model relates to a material receiving sensor, which comprises a threaded sleeve (11), a signal line (12) and a telescopic head (13), the threaded sleeve (11) is a sleeve structure with a threaded structure on the hollow peripheral surface, the telescopic head (13) is protruding from the front end surface, the telescopic head (13) is in a telescopic state, and the telescopic state is sensed by a sensing element, and an electrical signal is sent through the tail end signal line (12). The outer side of the threaded sleeve (11) is provided with an internally threaded hard sleeve (2) which is connected to the front end of the material receiving sensor (1) through threads, and the end surface of the internally threaded hard sleeve (2) is provided with a through hole, and the telescopic head (13) protrudes from the through hole. The outer side of the threaded sleeve (11) is further provided with a fixed nut (3) which is threadedly connected with the threaded sleeve (11).

2. A line sheet forming machine feed length sensor according to claim 1, characterized in that: The fixed nut (3) and the internally threaded hard sleeve (2) are clamped with a flow guide sleeve (4) in the middle, the flow guide sleeve (4) is composed of a gasket (41) clamped between the fixed nut (3) and the internally threaded hard sleeve (2) and a flow guide plate extending from the gasket (41) to the front end of the internally threaded hard sleeve (2) on the lower half side, and the flow guide plate forms a funnel structure at the front end of the internally threaded hard sleeve (2).

3. A wire sheet forming machine feed length sensor according to claim 2, wherein: A group of raised inclined surfaces of the gasket (41) are arranged symmetrically along the center, and the end surface of the internally threaded hard sleeve (2) is provided with a corresponding groove structure.

4. A line sheet forming machine feed length sensor according to claim 3, wherein: The front end of the flow guide plate is provided with a ball (45), and the arc surface of the ball (45) forms a funnel structure at the front end of the flow guide plate.

5. A linear sheet forming machine length sensor as defined in claim 3, wherein: The flow guide plate is divided into a main flow guide plate (43) and a secondary flow guide plate (44), the main flow guide plate (43) is arranged directly below the internally threaded hard sleeve (2), and the secondary flow guide plate (44) is arranged on both sides of the main flow guide plate (43), and the length of the main flow guide plate (43) is longer than that of the secondary flow guide plate (44).

6. A wire sheet forming machine feed length sensor according to claim 5 wherein: The pivot shaft of the ball (45) on the main flow guide plate (43) is eccentrically arranged, a torsional spring is sleeved on the pivot shaft and acts on the ball (45), so that the ball (45) maintains an initial angle with the eccentric direction upward.

7. A wire sheet forming machine feed length sensor according to claim 6 wherein: The end surface of the internally threaded hard sleeve (2) is provided with a funnel structure towards the center point of the end surface.

8. A line sheet forming machine feed length sensor according to claim 1, wherein: The funnel structure of the end surface of the internally threaded hard sleeve (2) is opened.

9. A wire sheet forming machine feed length sensor according to claim 8, wherein: ​

Images