CN115108303A

CN115108303A - Pushing mechanism with material blocking detection function

Info

Publication number: CN115108303A
Application number: CN202210755914.3A
Authority: CN
Inventors: 黄志炜; 刘国华
Original assignee: Clp Pengcheng Intelligent Equipment Co ltd
Current assignee: Clp Pengcheng Intelligent Equipment Co ltd
Priority date: 2022-06-30
Filing date: 2022-06-30
Publication date: 2022-09-27
Anticipated expiration: 2042-06-30
Also published as: CN115108303B

Abstract

The invention discloses a material pushing mechanism with a material blocking detection function, which comprises a material pushing support, a material pushing mechanism and a push block assembly for pushing materials, wherein the push block assembly is connected with the material pushing support in a sliding mode along the length direction of the material pushing support; the push block assembly comprises a push block, the push block is connected with a pushing mechanism through a support, a mandrel is horizontally arranged on the support along the direction perpendicular to the sliding direction of the push block, the push block is sleeved on the mandrel and is rotationally connected with the mandrel, and an anti-torsion mechanism is arranged between the push block and the support.

Description

Pushing mechanism with material blocking detection function

Technical Field

The invention relates to the technical field of automatic chip blanking equipment, in particular to a material pushing mechanism with a material blocking detection function.

Background

The material transfer of the substrate in the semiconductor production line is realized through a magazine, a last station of a line body is a plate collecting machine generally, the substrate in the line body is recovered into the magazine under the action of a material pushing mechanism, and due to the fact that the supplied material of the substrate has warping deformation, the material blocking phenomenon sometimes occurs in the material pushing process, so that the material cannot be pushed, the substrate is damaged due to continuous pushing, and the production process is influenced due to untimely processing.

Disclosure of Invention

The technical purpose is as follows: the invention discloses a material pushing mechanism with a card detection function, which can timely give a feedback alarm when the pushing stress is large and avoid damaging a substrate, aiming at the defects that in the existing semiconductor production line, the substrate is warped, deformed and clamped, cannot be pushed and cannot be processed in time, the formed substrate is damaged, and the production process is influenced.

The technical scheme is as follows: in order to achieve the technical purpose, the invention adopts the following technical scheme:

a material pushing mechanism with material jamming detection comprises a material pushing support, a material pushing mechanism and a push block assembly for pushing materials, wherein the push block assembly is connected with the material pushing support in a sliding mode along the length direction of the material pushing support; the push block assembly comprises a push block, the push block is connected with a pushing mechanism through a support, a mandrel is horizontally arranged on the support along the sliding direction of the push block, the push block is sleeved on the mandrel and is rotationally connected with the mandrel, an anti-torsion mechanism is arranged between the push block and the support, and the torsion direction of the anti-torsion mechanism is opposite to the rotation trend direction of the push block when pushing materials.

Preferably, the photoelectric sensor provided by the invention adopts a correlation type photoelectric sensor, the transmitting end and the receiving end of the correlation type photoelectric sensor are respectively arranged at two ends of the pushing support along the pushing direction of the material, and the push block assembly is arranged between the transmitting end and the receiving end of the correlation type photoelectric sensor.

Preferably, the torsion-resistant mechanism comprises a stress block, the stress block is rotationally connected with the mandrel, the stress block synchronously rotates with the push block when the push block is blocked, a torsion spring and an adjusting block are sequentially arranged on the mandrel section between the stress block and the support, the torsion spring and the adjusting block are both sleeved on the mandrel and are rotationally connected with the mandrel, and limit pins matched with support arms at two ends of the torsion spring are inserted on the stress block and the adjusting block; the notch has been seted up in the below of atress piece, is equipped with the spacing axle that restriction atress piece rotated along torsional spring effort direction in the notch, spacing axle one end and support fixed connection, the other end is located the side of notch, carries out the adjustment of torsional spring torsion size through rotating the regulating block, is equipped with on the support and carries out spacing stop gear to the regulating block after the rotation.

Preferably, the limiting mechanism of the invention adopts a threaded knob, the threaded knob is screwed on the support, the end part of the threaded knob penetrates through the support and is opposite to the outer edge of the adjusting block, clamping grooves which are alternately concave and convex are arranged on the circumference of the adjusting block, and the end part of the threaded knob is arranged in the clamping grooves to limit the rotation of the adjusting block.

Preferably, the upper part of the force bearing block of the invention is provided with a through hole for the light beam of the correlation type photoelectric sensor to pass through, and when the force bearing block is forced to rotate, the light beam cannot pass through the through hole.

Preferably, the support is a special-shaped piece, and the support is provided with a connecting part connected with the pushing mechanism, a sliding part connected with the pushing support in a sliding fit manner, a fixing part for fixing the core shaft and a locking part for installing the limiting mechanism.

Preferably, the pushing mechanism of the present invention comprises a pushing stepping motor fixed on the pushing support, and a synchronous wheel assembly mounted on the pushing support, wherein the synchronous wheel assembly comprises a driving wheel connected to a driving end of the pushing stepping motor, a driven wheel mounted on the pushing support along the pushing direction, and a synchronous belt connecting the driving wheel and the driven wheel, and the support is connected to the synchronous belt through a synchronous belt fixing plate.

Preferably, the synchronous belt fixing plate of the present invention is provided with gear teeth spaced by protrusions and recesses on a surface thereof to be fitted to the synchronous belt, for preventing the synchronous belt from running.

Has the advantages that: the pushing mechanism with the function of material jamming detection provided by the invention has the following beneficial effects:

1. according to the invention, the photoelectric sensor is arranged on the material pushing support to detect the substrate in the pushing process, the torsion resisting mechanism is arranged, the push block can rotate after the resistance reaches the preset torque, so that the substrate damage problem caused by continuous pushing is avoided, the photoelectric sensor can detect the change of the push block assembly, and then the reminding or alarming is carried out, so that the material blocking state can be timely removed, and the production of a production line can be continuously operated.

2. The photoelectric sensor adopts the correlation photoelectric sensor, the push block assembly is arranged between the transmitting end and the receiving end of the correlation photoelectric sensor, once the push block assembly changes, the push block assembly influences an optical path, and then whether pushing is blocked or not can be found in time, and the push block assembly can be found, alarmed and processed in time.

3. The torsion-resistant mechanism is realized through the stress block, the torsion spring and the adjusting block, the torsion spring provides resistance torque, and the stress block can synchronously rotate with the pushing block when the stress torque of the pushing block is larger than the torque of the torsion spring, so that the torsion-resistant mechanism can ensure that when the material clamping resistance is small, the base plate can be continuously pushed without being damaged, the material clamping cleaning is not frequently required, the time is saved, and the production efficiency of a production line is improved.

4. The adjusting block is rotatably connected with the core shaft, the lower part of the stress block is provided with a notch, a limiting shaft is arranged in the notch, the stress block cannot rotate under the action of a torsion spring through the limiting shaft, when the pushing block is stressed and needs to drive the stress block to rotate together, the action force of the torsion spring needs to be overcome, so that when the adjusting block rotates in the direction of increasing the action force of the torsion spring, the resistance borne by the pushing block in the material pushing process can be indirectly increased, the size of the resistance capable of being borne can be flexibly adjusted, the times of cleaning a material clamping substrate are reduced as far as possible on the premise of not damaging the substrate, and the efficiency is improved.

5. According to the invention, the through hole is formed in the upper part of the stress block to allow the light beam of the correlation type photoelectric sensor to pass through, so that when the substrate is clamped, and the stress of the push block exceeds the acting force of the torsion spring, the push block can drive the stress block to rotate, and the light beam of the correlation type photoelectric sensor cannot pass through the through hole, so that the clamping is judged, the problem can be found in time, and the clamping can be cleaned conveniently.

6. The support adopts an integrated special-shaped piece, has the functional part which can realize butt joint with each part, simplifies the assembly relation among the structures, can quickly finish the assembly, and has an integrated structure and higher reliability.

7. The synchronous belt fixing plate adopts a gear tooth-shaped structure on the matching surface with the synchronous belt, so that the relative position of the synchronous belt and the support can be firmly fixed, and the relative movement between the support and the synchronous belt when the support is stressed is avoided.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below.

FIG. 1 is an overall structural view of the present invention;

FIG. 2 is a general block diagram of the push block assembly of the present invention;

FIG. 3 is a right side view of the pusher block assembly of the present invention;

FIG. 4 is an exploded view of the pusher block assembly of the present invention;

the device comprises a material pushing support 1, a material pushing block assembly 2, a photoelectric sensor 3, a pushing block 4, a support 5, a mandrel 6, a stress block 7, a torsion spring 8, an adjusting block 9, a limiting pin 10, a notch 11, a limiting shaft 12, a limiting mechanism 13, a clamping groove 14, a through hole 15, a material pushing stepping motor 16, a driving wheel 17, a driven wheel 18, a synchronous belt 19 and a synchronous belt fixing plate 20.

Detailed Description

The present invention will be more fully described by way of a preferred embodiment in conjunction with the accompanying drawings, without limiting the scope of the invention as such.

As shown in fig. 1-4, the pushing mechanism with material jamming detection disclosed in the present invention includes a pushing support 1, a pushing mechanism, and a pushing block assembly 2 for pushing material, wherein the pushing block assembly 2 is slidably connected to the pushing support 1 along a length direction of the pushing support 1, the pushing mechanism drives the pushing block assembly 2 to slide on the pushing support 1 to push the material, and the pushing support 1 is provided with a photoelectric sensor 3 for detecting a pushing state of the material; the push block assembly 2 comprises a push block 4, the push block 4 is connected with a pushing mechanism through a support 5, a mandrel 6 is horizontally arranged on the support 5 along the sliding direction of the push block 4, the push block 4 is sleeved on the mandrel 6 and is rotationally connected with the mandrel, an anti-torsion mechanism is arranged between the push block 4 and the support 5, and the torsion direction of the anti-torsion mechanism is opposite to the rotation trend direction of the push block 4 when pushing materials.

Through the arrangement of the anti-torsion mechanism, the push block can bear certain resistance in the pushing process, so that when the material clamping condition is not serious, the situation of clamping the substrate is relieved through the pushing of the push block, the material clamping is not required to be frequently cleaned, the working procedure time can be saved to a certain extent, and the semiconductor production line can continuously run; the photoelectric sensor 3 can detect the pushing state of the material, and then can feed back in time when the substrate is clamped, so that the clamped material can be cleaned in time, and the normal operation of a production line is maintained.

Specifically, the photoelectric sensor 3 adopts an opposite type photoelectric sensor, the transmitting end and the receiving end of the opposite type photoelectric sensor are arranged at two ends of the pushing support 1 along the pushing direction of the material, the push block assembly 2 is arranged between the transmitting end and the receiving end of the opposite type photoelectric sensor, when the resistance force borne by the push block assembly 2 is larger than the torsion force of the torsion resisting mechanism, rotation can be generated, light beams between the transmitting end and the receiving end of the opposite type photoelectric sensor can be influenced in the rotating process, and then whether material jamming is generated or not is judged, and reminding is carried out.

In a specific embodiment, the anti-torsion mechanism comprises a stress block 7, the stress block 7 is rotatably connected with a mandrel 6, the stress block 7, a push block 4 and the mandrel are rotatably connected by adopting bearings to be matched, the axial resistance is reduced, meanwhile, axial limiting can be carried out through the bearings, the stress block 7 and the push block 4 synchronously rotate when the push block is blocked, a torsion spring 8 and an adjusting block 9 are sequentially arranged on a mandrel section between the stress block 7 and a support 5, the torsion spring 8 and the adjusting block 9 are both sleeved on the mandrel 6 and are rotatably connected with the mandrel, and limiting pins 10 used for being matched with support arms at two ends of the torsion spring 8 are inserted on the stress block 7 and the adjusting block 9; atress piece 7 upper portion has the through-hole 15 that is used for correlation type photoelectric sensor's light beam to pass, when atress piece 7 atress rotates, the light beam can't pass through-hole 15, notch 11 has been seted up in the below of atress piece 7, be equipped with restriction atress piece 7 along torsional spring effort direction pivoted spacing axle 12 in notch 11, spacing axle 12 one end and support 5 fixed connection, the other end is located the side of notch 11, carry out the adjustment of torsional spring 8 torsion size through rotating regulating block 9, be equipped with on support 5 and carry out spacing stop gear 13 to regulating block 9 after the rotation.

As shown in fig. 2-4, the principle of the torsion-resistant mechanism of the present application is illustrated in the direction of fig. 2, when the pushing block assembly 2 is subjected to resistance force along the pushing direction due to material jamming, the resistance force will make the pushing block 4 have a tendency of clockwise rotation, in order to make the pushing block 4 and the stressed block 7 rotate synchronously when stressed, the front end of the stressed block 7 is provided with a second limiting shaft 21, the second limiting shaft 21 is located at the lower part of the stressed block 7 and the end part thereof is inserted on the pushing block 4, when the pushing block 4 is stressed to rotate, the force can be transmitted to the stressed block 7 through the second limiting shaft 21, while the torsion force of the torsion spring 8 will make the stressed block 7 have a tendency of counterclockwise rotation, the counterclockwise rotation of the stressed block 7 can be blocked through the limiting shaft 12, therefore, when the pushing block 4 needs to rotate clockwise, the acting force of the torsion spring 8 needs to be overcome, and further when the resistance force applied to the pushing block 4 is smaller than the acting force of the torsion spring, can not produce the rotation, when the card material resistance is less, can promote the base plate through thrust, keep producing the normal operating of line, need not report to the police, and it is serious at the card material situation, when the resistance is greater than the effort of torsional spring, ejector pad 4 can drive atress piece 7 clockwise rotation, through-hole 15 on for atress piece 7 upper portion can produce the change because of the turned position, and then lead to the unable through-hole that passes through of light beam, the unable received optical signal of correlation type photoelectric sensor's receiving terminal, it is serious to explain the card material, can launch alarm signal, need clear up the base plate on the line of producing, and stop pushing away the material.

For different base plates, the deformation or the thrust borne by the base plates are different, in order to adjust the acting force of the torsion spring, the adjusting block 9 can rotate, the rotating direction does not pass through, the acting force of the corresponding torsion spring can be increased or reduced, the rotating direction and the angle of the adjusting block 9 are selected according to requirements, specifically, the limiting mechanism 13 adopts a threaded knob which is screwed on the support 5, the end part of the threaded knob passes through the support 5 and is opposite to the outer edge of the adjusting block 9, the circumference of the adjusting block 9 is provided with clamping grooves 14 which are arranged at intervals, the end part of the thread knob is arranged in the clamping groove 14 to limit the rotation of the adjusting block 9, in order to facilitate the operation of rotating the adjusting block 9, the adjusting block 9 of the invention is connected with an adjusting rod 22 on the circumference, and the adjusting rod 22 is screwed in the adjusting block 9 along the radial direction of the adjusting block 9, so that the adjusting block 9 can be conveniently rotated.

In order to facilitate the installation of the structure, the support 5 is a special-shaped piece, the support 5 is provided with a connecting part connected with the pushing mechanism, a sliding part connected with the pushing support 11 in a sliding fit manner, a fixing part used for fixing the mandrel 6 and a locking part used for installing the limiting mechanism 13, any structure with the functional components can be applied to the scheme, and complex assembly processes are not needed.

The material pushing mechanism comprises a material pushing stepping motor 16 fixed on a material pushing support 1 and a synchronous wheel component arranged on the material pushing support 1, wherein the synchronous wheel component comprises a driving wheel 17 connected with the driving end of the material pushing stepping motor 16, a driven wheel 18 arranged on the material pushing support 1 along the material pushing direction and a synchronous belt 19 connected with the driving wheel 17 and the driven wheel 18, the material pushing stepping motor 16 is electrically connected with a photoelectric sensor 3, when the material is detected to be blocked, the material pushing is stopped in time while alarming is carried out, the damage of a substrate or equipment is avoided, a support 5 is connected with the synchronous belt 19 through a synchronous belt fixing plate 20, concave-convex gear teeth used for preventing the synchronous belt from moving in a staggered mode are arranged on the surface, matched with the synchronous belt 19, of the synchronous belt fixing plate 20, and the synchronous belt and the support are prevented from moving relatively through the gear teeth.

When the pushing mechanism with the material jamming detection function is used, the acting force of the torsion spring is adjusted according to the stress capacity of the base plate on a production line, and the specific adjusting process is as follows: and loosening the threaded knob to enable the end part of the threaded knob to retreat from the clamping groove 14 of the adjusting block, then holding the adjusting rod 22, rotating the adjusting block in the direction needing to be adjusted, turning the threaded knob again after the adjustment is in place, clamping the end part of the threaded knob into the clamping groove, and fixing the adjusting block.

After the adjustment is finished, normal material pushing operation can be carried out, when the material clamping is not serious and does not exceed the acting force of the torsion spring, the pushing block 4 can continue to push the substrate to maintain the operation of the production line, when the material clamping is serious and the resistance is large, the pushing block 4 and the stressed block 7 can rotate clockwise due to the fact that the resistance exceeds the acting force of the torsion spring, the photoelectric sensor 3 detects the change of the material pushing state, the feedback state is timely alarmed, and the material pushing is stopped.

The above description is only of the preferred embodiments of the present invention, and it should be noted that: it will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the principles of the invention and these are intended to be within the scope of the invention.

Claims

1. The pushing mechanism with the function of material blocking detection is characterized by comprising a pushing support (1), a pushing mechanism and a pushing block assembly (2) used for pushing materials, wherein the pushing block assembly (2) is connected with the pushing support (1) in a sliding mode along the length direction of the pushing support (1), the pushing mechanism drives the pushing block assembly (2) to slide on the pushing support (1) to push materials, and a photoelectric sensor (3) used for detecting the pushing state of the materials is arranged on the pushing support (1); the push block assembly (2) comprises a push block (4), the push block (4) is connected with a pushing mechanism through a support (5), a mandrel (6) is horizontally arranged on the support (5) along the sliding direction of the push block (4) in a vertical mode, the push block (4) is sleeved on the mandrel (6) and is rotationally connected with the mandrel, an anti-torsion mechanism is arranged between the push block (4) and the support (5), and the torsion direction of the anti-torsion mechanism is opposite to the rotation trend direction of the push block (4) when pushing materials.

2. The pushing mechanism with the jamming detection function according to claim 1, wherein the photoelectric sensor (3) is a correlation photoelectric sensor, a transmitting end and a receiving end of the correlation photoelectric sensor are arranged at two ends of the pushing support (1) along the pushing direction of the material, and the push block assembly (2) is arranged between the transmitting end and the receiving end of the correlation photoelectric sensor.

3. The pushing mechanism with the function of detecting the blocked materials as claimed in claim 2, wherein the anti-torsion mechanism comprises a stress block (7), the stress block (7) is rotatably connected with the mandrel (6), the stress block (7) and the pushing block (4) synchronously rotate when the pushing block is blocked, a torsion spring (8) and an adjusting block (9) are sequentially arranged on a mandrel section between the stress block (7) and the support (5), the torsion spring (8) and the adjusting block (9) are both sleeved on the mandrel (6) and rotatably connected with the mandrel, and limit pins (10) used for being matched with support arms at two ends of the torsion spring (8) are inserted on the stress block (7) and the adjusting block (9); the limiting device is characterized in that a notch (11) is formed in the lower portion of the stress block (7), a limiting shaft (12) which limits the stress block (7) to rotate along the direction of the acting force of the torsion spring is arranged in the notch (11), one end of the limiting shaft (12) is fixedly connected with the support (5), the other end of the limiting shaft is located on the side edge of the notch (11), the torsion force of the torsion spring (8) is adjusted by rotating the adjusting block (9), and a limiting mechanism (13) which limits the rotating adjusting block (9) is arranged on the support (5).

4. The pushing mechanism with the function of material jamming detection according to claim 3, wherein the limiting mechanism (13) is a threaded knob, the threaded knob is screwed on the support (5), the end portion of the threaded knob penetrates through the support (5) and is opposite to the outer edge of the adjusting block (9), clamping grooves (14) which are arranged at intervals of concave and convex are formed in the circumference of the adjusting block (9), and the end portion of the threaded knob is arranged in the clamping grooves (14) to limit rotation of the adjusting block (9).

5. The pushing equipment with the jammed material detection function as claimed in claim 3, wherein the upper part of the force block (7) is provided with a through hole (15) for passing through the light beam of the correlation type photoelectric sensor, and when the force block (7) is forced to rotate, the light beam can not pass through the through hole (15).

6. The pushing equipment with the function of material jam detection as claimed in claim 3, wherein the support (5) is a special-shaped piece, the support (5) is provided with a connecting part connected with the pushing equipment, a sliding part connected with the pushing support (11) in a sliding fit manner, a fixing part used for fixing the mandrel (6) and a locking part used for installing the limiting mechanism (13).

7. The material pushing mechanism with the function of detecting the blocked material as claimed in claim 6, wherein the material pushing mechanism comprises a material pushing stepping motor (16) fixed on the material pushing support (1), and a synchronous wheel assembly mounted on the material pushing support (1), the synchronous wheel assembly comprises a driving wheel (17) connected with the driving end of the material pushing stepping motor (16), a driven wheel (18) mounted on the material pushing support (1) along the material pushing direction, and a synchronous belt (19) connecting the driving wheel (17) and the driven wheel (18), and the support (5) is connected with the synchronous belt (19) through a synchronous belt fixing plate (20).

8. The material pushing mechanism with the function of detecting the blocked material as claimed in claim 7, wherein the synchronous belt fixing plate (20) is provided with concave-convex alternate gear teeth for preventing the synchronous belt from moving in a crossing manner on the surface matched with the synchronous belt (19).