Material detection device for feeding tray

Abstract

The utility model belongs to the technical field of feeding equipment, and discloses a feeding tray material detection device which is used for detecting whether materials exist in a feeding tray mechanism or not, the feeding tray mechanism can contain a plurality of materials, and the materials are sequentially stacked on the feeding tray mechanism from bottom to top. The feeding tray material detection device comprises a support, a detection part and an induction part, the detection part is rotatably connected to the support, the induction part is arranged on the support, one end of the detection part can be arranged below the bottommost material, at least one material can abut against the detection part to limit rotation of the detection part, and when the detection part rotates, the detection part can trigger the induction part. The feeding tray material detection device can rotate when no material exists in the feeding tray mechanism so as to trigger the sensing piece and send out a material shortage alarm, an unstacking mechanical arm does not need to carry out additional grabbing action, the feeding tray material detection device meets the detection requirements of feeding tray mechanisms of different specifications and different shapes and materials, and the universality is good.

Description

TECHNICAL FIELD

[0001] The utility model relates to feeding equipment technical field especially relates to feeding tray material detection device. BACKGROUND

[0002] The shell assembly production line of the washing machine comprises a punching line, the punching line carries out punching and other sheet metal processing to the plate material to form the side plate of the shell. In order to maintain the continuity of the production of the punching line, a plurality of plate materials form a material stack, and the material stack is transferred to the feeding table located at the initial end of the punching line by a forklift. The sheet material tray on the feeding table carries the material stack, and the unstacking manipulator takes the material in turn and transfers the plate material to the punching line for processing one by one. In order to improve the degree of automation of the shell assembly production line, the feeding table needs to have a no-material alarm function to prompt that the plate materials in the sheet material tray have been transferred completely. In the existing shell assembly production line, a detection sensor is usually added to the unstacking manipulator, and when the sheet material tray is empty, the detection sensor cannot detect the plate material and will send an alarm signal. This detection method needs the unstacking manipulator to make an additional grabbing action to obtain the no-material feedback, which is low in detection efficiency and wastes the beat time. Some shell assembly production lines increase a no-material detection sensor at the bottom of the feeding table, and the no-material detection sensor detects upward through the sheet material tray. This detection method needs the sheet material tray to be standardized, and the sheet material tray cannot block the position of the no-material detection sensor of the corresponding feeding table, so as to ensure that the no-material detection sensor can detect the plate material on the sheet material tray. This method has many limitations and is difficult to adapt to the detection requirements of sheet material trays of different specifications and different shapes.

[0003] Therefore, there is an urgent need for a feeding tray material detection device to solve the above problems. INVENTION CONTENTS

[0004] The utility model aims at providing a feeding tray material detection device which can solve the problems of the existing detection method, such as the need for an additional grabbing action of the unstacking manipulator to detect the no-material state of the material tray, low detection efficiency, influence on the beat time, the need for the standardization of the material tray for detection by the sensor on the feeding table, and many limitations on the material tray due to the non-shielding detection position.

[0005] To achieve this purpose, the utility model adopts the following technical solutions:

[0006] The application provides a feeding tray material detection device for detecting whether materials exist in a feeding tray mechanism, the feeding tray mechanism can accommodate a plurality of materials, and the plurality of materials are sequentially stacked from bottom to top in the feeding tray mechanism. The feeding tray material detection device comprises a support, a detection piece and a sensing piece. The detection piece is rotatably connected to the support, and the sensing piece is arranged on the support. One end of the detection piece can be arranged below the bottommost material, and at least one material can abut against the detection piece to limit the rotation of the detection piece. When the detection piece rotates, the detection piece can trigger the sensing piece.

[0007] In one embodiment, the support comprises a rotating shaft, the detection piece comprises a detection part and a driving part connected to each other, one end of the detection part is rotatably arranged on the rotating shaft, the other end of the detection part away from the rotating shaft abuts against the back of the bottommost material, the driving part always has a motion trend to make the detection part rotate around the rotating shaft to lift the material, and at least one material abuts against the detection part to constrain the detection part.

[0008] In one embodiment, the driving part is a counterweight, the detection part and the driving part are arranged on both sides of the rotating shaft, the weight of the counterweight is less than the weight of a single material and greater than the weight of the detection part.

[0009] In one embodiment, the driving part can move with the detection part and trigger the sensing piece. The driving part has a non-triggering state of moving away from the sensing piece and a triggering state of moving towards the sensing piece.

[0010] In one embodiment, the detection part is a rod-shaped body.

[0011] In one embodiment, the feeding tray mechanism comprises a feeding table and a tray arranged on the feeding table, the tray is used for accommodating the materials, the support is detachably connected to the feeding table and located beside the tray, and the position of the support relative to the tray is variable to adjust the position of the detection piece relative to the tray.

[0012] In one embodiment, at least part of the materials extends to the outside of the tray to form a detection end, the detection piece is located on one side of the materials and abuts against the detection end, and a gap is formed between the end of the detection piece and the tray.

[0013] In one embodiment, the support is a magnetic table stand, and the magnetic table stand can magnetically connect the feeding table.

[0014] In one of the embodiments, the sensing member is a sensor, and the detecting member is capable of shielding a sensing end of the sensor to trigger the sensing member.

[0015] In one of the embodiments, the feeding tray material detecting device further comprises a blocking member fixedly connected to the support, and the blocking member is capable of abutting against the rotating detecting member to limit the rotating angle of the detecting member.

[0016] The feeding tray material detecting device has the following beneficial effects:

[0017] The feeding tray material detecting device comprises a support, a detecting member and a sensing member. The detecting member is rotatably connected to the support, and the sensing member is arranged on the support. One end of the detecting member is capable of being arranged below the bottommost material, and at least one material is capable of abutting against the detecting member to limit the rotation of the detecting member. When the feeding tray mechanism contains the material, the material is capable of abutting against the detecting member and limiting the rotation of the detecting member, and the sensing member is not triggered. With the multiple materials being taken away from top to bottom in turn, as long as the feeding tray mechanism contains the material, the detecting member is always in the state of being limited to rotate. Until the feeding tray mechanism does not contain the material, the rotation limitation of the detecting member is removed, and the detecting member rotates to trigger the sensing member. The triggered sensing member is capable of issuing a material shortage alarm to prompt that the feeding tray mechanism is in the material shortage state. The detection of the material shortage state of the feeding tray mechanism is performed when the last material is taken away, and the detection does not need the additional grabbing action of the unstacking manipulator. The detecting member directly contacts the material, the action of the sensing member is triggered by the detecting member, and the sensing member is not affected by the specifications and shapes of the feeding tray mechanism, and is capable of adapting to the detection requirements of feeding tray mechanisms and materials of different specifications and shapes, and has good versatility. BRIEF DESCRIPTION OF DRAWINGS

[0018] Fig. 1 is a structural schematic view of the feeding tray material detecting device provided by the embodiment one of the utility model;

[0019] Fig. 2 is a structural schematic view of the detecting member being limited to rotate provided by the embodiment one of the utility model;

[0020] Fig. 3 is a structural schematic view of the detecting member triggering the sensing member provided by the embodiment one of the utility model.

[0021] In the drawings:

[0022] 1, support; 11, rotating shaft; 12, handle;

[0023] 2, detecting member; 21, detecting part; 22, driving part;

[0024] 3, sensing member; 31, sensing end; 4, blocking member;

[0025] 100, loading tray mechanism; 101, loading table; 102, tray; 200, material; 201, detection end. DETAILED DESCRIPTION

[0026] The technical solutions of the present application will be described clearly and completely below in conjunction with the drawings. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.

[0027] In the description of the present application, it should be noted that the orientations or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", etc. are only for the purpose of description, and cannot be understood as indicating or implying relative importance. Among them, the terms "first position" and "second position" are two different positions, and moreover, the "above", "above" and "above" of the first feature on the second feature include the first feature above and obliquely above the second feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The "below", "below" and "below" of the first feature on the second feature include the first feature below and obliquely below the second feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0028] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication between two elements inside. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0029] The embodiments of the present application will be described in detail below, and the examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by reference to the drawings are exemplary and are only used to explain the present application, and cannot be understood as limiting the present application.

[0030] The housing assembly production line of the washing machine includes a punching line, which performs punching and other sheet metal processing on a plate to form a side plate of the housing. In order to maintain the continuity of the punching line production, multiple plates form a stack, and are transferred by a forklift to a loading table located at the initial end of the punching line. The sheet material tray on the loading table carries the stack, and the unstacking manipulator takes the material in turn and transfers the plate to the punching line for processing one by one. In order to improve the degree of automation of the housing assembly production line, the loading table needs to have a no-material alarm function to prompt that the plates in the sheet material tray have been completely transferred. In the existing housing assembly production line, a detection sensor is usually added to the unstacking manipulator, and when the sheet material tray is empty, the detection sensor cannot detect the plate and will send an alarm signal. This detection method needs the unstacking manipulator to make an additional grabbing action to get the no-material feedback, which is low in detection efficiency and wastes the tact time. Some housing assembly production lines add a no-material detection sensor at the bottom of the loading table, and the no-material detection sensor detects upward through the sheet material tray. This detection method requires the sheet material tray to be standardized, and the sheet material tray must not block the position of the no-material detection sensor of the corresponding loading table, so that the no-material detection sensor can detect the plate on the sheet material tray. The detection method has many limitations and is difficult to adapt to the detection requirements of different specifications and different shapes of sheet material trays. In order to solve the above problems, embodiments one and two respectively propose a loading tray material detection device.

[0031] Embodiment one

[0032] As Figs. 1 to 3As shown, the material detection device for the feeding tray provided in the embodiment is used for detecting whether there is material 200 in the feeding tray mechanism 100. The feeding tray mechanism 100 can accommodate a plurality of materials 200, and the plurality of materials 200 are sequentially stacked from bottom to top in the feeding tray mechanism 100. The material detection device for the feeding tray 200 includes a support 1, a detection piece 2 and a sensing piece 3. The detection piece 2 is rotatably connected to the support 1, and the sensing piece 3 is arranged on the support 1. One end of the detection piece 2 can be placed below the bottommost material 200, and at least one material 200 can abut against the detection piece 2 to limit the rotation of the detection piece 2. When the feeding tray mechanism 100 contains the material 200, the material 200 can abut against the detection piece 2 and limit the rotation of the detection piece 2, and the sensing piece 3 will not be triggered. As the plurality of materials 200 are sequentially taken away from top to bottom, as long as there is material 200 in the feeding tray mechanism 100, the detection piece 2 is always in a state of being limited to rotate; until there is no material 200 in the feeding tray mechanism 100, the rotation limitation of the detection piece 2 is removed, and the detection piece 2 rotates to trigger the sensing piece 3. The triggered sensing piece 3 can issue a material shortage alarm to prompt that the feeding tray mechanism 100 is currently in a material shortage state. The detection of the material shortage state of the feeding tray mechanism 100 is carried out as the last material 200 is taken away, and no additional grabbing action of the unstacking manipulator is required. The detection piece 2 directly contacts the material 200, and the action of the sensing piece 3 is triggered by the detection piece 2, which is not affected by the specifications and shapes of the feeding tray mechanism 100, and can adapt to the detection requirements of feeding tray mechanisms 100 and materials 200 of different specifications and shapes, and has good versatility.

[0033] The support 1 includes a rotating shaft 11, the detection piece 2 includes a detection part 21 and a driving part 22 connected to each other, one end of the detection part 21 is rotatably arranged on the rotating shaft 11, the other end of the detection part 21 away from the rotating shaft 11 abuts against the back surface of the bottommost material 200, the driving part 22 always has a movement trend to make the detection part 21 rotate around the rotating shaft 11 to lift the material 200, and at least one material 200 abuts against the detection part 21 to constrain the detection part 21.

[0034] Specifically, in the present fact example, the driving part 22 is a counterweight, the detection part 21 and the driving part 22 are arranged on the two sides of the rotating shaft 11, the weight of the counterweight is less than the weight of a single material 200 and greater than the weight of the detection part 21. Therefore, as long as the detection part 21 abuts against at least one material 200, the weight of the material 200 is greater than the weight of the counterweight, which can prevent the detection piece 2 from rotating. The driving part 22 can move with the detection part 21 and trigger the sensing piece 3. The driving part 22 has a non-triggering state of moving away from the sensing piece 3 and a triggering state of moving towards the sensing piece 3.

[0035] The feeding tray mechanism 100 comprises a feeding table 101 and a tray 102 arranged on the feeding table 101, the tray 102 is used for accommodating the material 200, the support 1 is detachably connected to the feeding table 101 and located beside the tray 102, effectively utilizing the space beside the tray 102. The position of the support 1 relative to the tray 102 can be changed to adjust the position of the detection member 2 relative to the tray 102. Affected by the size change of the tray 102, the position of the support 1 also needs to be adjusted accordingly.

[0036] At least part of the material 200 extends to the outside of the tray 102 to form a detection end 201, the detection member 2 is located on one side of the material 200 and abuts against the detection end 201, and there is a gap between the end of the detection member 2 and the tray 102. In actual application, the feeding tray material detection device is arranged on one side of the feeding tray mechanism 100, and the detection member 2 abuts against the bottom edge of the detection end 201. When the detection member 2 is in a state of being limited to rotate, the detection member 2 is in a state of being inclined downward from the self-driving part 22 to the detection part 21 due to the weight of the counterweight being less than the weight of the material 200. When a plurality of materials 200 in the tray 102 are taken out one by one from top to bottom until there is no material 200 in the feeding tray mechanism 100, the detection member 2 forms a cantilever structure at both ends due to the weight of the counterweight being greater than the weight of the detection part 21, the counterweight drives the detection part 21 to rotate, and the counterweight triggers the inductive member 3 when rotating.

[0037] The detection part 21 is a rod-shaped body, which can reduce the contact area with the material 200, reduce the friction between the detection part 21 and the material 200, avoid causing the material 200 to move and rub against the detection part 21 when grabbing the material 200, and also reduce the deformation of the material 200 caused by the plurality of materials 200 pressing on the detection part 21.

[0038] The support 1 is a magnetic base, which can be magnetically connected to the feeding table 101. The magnetic base can change the polarity of the internal magnet by rotating the handle 12, so that it is separated from the surface of the feeding table 101, and can be moved on the feeding table 101 to adjust to the appropriate position. Then twist the handle 12 again, so that the two poles of the magnet are opposite to the base of the soft magnetic material. The base is magnetized to show strong magnetism and is adsorbed on the surface of the feeding table 101. This method of adjusting the position of the support 1 on the feeding table 101 is relatively simple.

[0039] The sensing element 3 is a sensor, and the detection element 2 can shield the sensing end 31 of the sensor to trigger the sensing element 3. In the non-triggering state where the driving part 22 moves away from the sensing element 3, the sensing end 31 of the sensor is not shielded, and the sensor will not be triggered; when there is no material 200 in the feeding tray mechanism 100, the counterweight driving detection part 21 rotates, and the counterweight shields the sensing end 31 of the sensor and triggers the sensing element 3 when rotating. The sensing element 3 is triggered to send a material shortage signal. The material shortage signal is sent to the front-end station, and the front-end station receives the material shortage signal and starts the feeding program, and the forklift transfers the material 200 to the tray 102.

[0040] In order to diversify the signal transmission, in an embodiment, the feeding tray material detection device is also provided with an alarm component (not shown in the figure), which is communicatively connected to the sensing element 3 and sends an alarm signal after receiving the material shortage signal sent by the sensing element 3, reminding the operator to pay attention to the material shortage state of the feeding tray mechanism 100. The alarm signal can be a sound signal, or a light signal, or both a sound signal and a light signal.

[0041] The feeding tray material 200 detection device also includes a blocking element 4 fixedly connected to the support 1, which can abut the rotating detection element 2 to limit the rotation angle of the detection element 2. For example, in this embodiment, the blocking element 4 is a shaft structure, and the blocking element 4 and the rotating shaft 11 are parallel to each other, and when there is no material 200 in the tray 102, the rotation of the detection element 2 is removed to produce rotation, and the detection element 2 will abut the rotating shaft 11 during rotation to limit the rotation, avoiding the detection element 2 from rotating too much. At the same time, in order to ensure that the detection element 2 abuts the blocking element 4, the sensing element 3 has been triggered, in an embodiment, the blocking element 4 and the sensing element 3 are located on both sides of the rotating shaft 11, and the detection part 21 abuts the blocking element 4, and the driving part 22 triggers the sensing element 3. In this way, the stability of the driving part 22 triggering the sensing element 3 can be ensured, and the driving part 22 always shields the sensing end 31 of the sensing element 3, ensuring the effective sensing of the sensing element 3.

[0042] Embodiment two

[0043] This embodiment two provides a feeding tray material detection device for detecting whether there is material 200 in the feeding tray mechanism 100, which has the same basic structure as the feeding tray material detection device in embodiment one, and this embodiment will not repeat the same structure.

[0044] In the embodiment, the driving part 22 is a torsion spring, which is sleeved on the rotating shaft 11, and the detecting part 21 is a rod-shaped member, which can rotate around the rotating shaft 11. Two torsion arms of the torsion spring are connected to the detecting part 21 at two ends of the rotating shaft 11 respectively, one end of the detecting part 21 is used for abutting against the lower side of the bottommost material 200, and the other end is used for rotating to trigger the trigger sensing member 3. The elastic torsion force of the torsion spring makes the detecting part 21 have a movement tendency of rotating to the trigger sensing member 3, under the weight of at least one material 200, the rotation of the detecting part 21 is limited, until there is no material 200 in the tray 102, the detecting part 21 rotates under the action of the torsion spring, so as to trigger the trigger sensing member 3.

[0045] It should be noted that, in the embodiment, the elastic torsion force of the torsion spring needs to be controlled, so that the elastic torsion force is smaller than the pressure of a single material 200 acting on the detecting part 21.

[0046] Obviously, the above-mentioned embodiments of the utility model are only examples for clearly explaining the utility model, and are not the limitation of the embodiments of the utility model. For ordinary skilled in the art, various obvious changes, re-adjustment and replacement can be made without departing from the protection scope of the utility model. Here, it is not necessary and impossible to enumerate all the embodiments. Any modification, equivalent replacement and improvement within the spirit and principle of the utility model should be included in the protection scope of the utility model claim.

Claims

1. A material detection device for a feeding tray mechanism (100) for detecting whether a material (200) is present in the feeding tray mechanism (100), wherein the feeding tray mechanism (100) is capable of accommodating a plurality of the materials (200), and the plurality of the materials (200) are sequentially stacked from bottom to top in the feeding tray mechanism (100), characterized in that, The feeding tray material detection device comprises a support (1), a detection piece (2) and a sensing piece (3), the detection piece (2) is rotatably connected to the support (1), the sensing piece (3) is arranged on the support (1), one end of the detection piece (2) can be placed below the bottommost material (200), at least one material (200) can abut against the detection piece (2) to limit the rotation of the detection piece (2), when the detection piece (2) rotates, the detection piece (2) can trigger the sensing piece (3).

2. The loading tray material detection device according to claim 1, characterized in that, The support (1) comprises a rotating shaft (11), the detection piece (2) comprises a detection part (21) and a driving part (22) connected to each other, one end of the detection part (21) is rotatably arranged on the rotating shaft (11), the other end of the detection part (21) away from the rotating shaft (11) abuts against the back of the bottommost material (200), the driving part (22) always has a movement trend to make the detection part (21) rotate around the rotating shaft (11) to lift the material (200), and at least one material (200) is pressed above the detection part (21) to constrain the detection part (21).

3. The loading tray material detection device of claim 2, wherein, The driving part (22) is a counterweight, the detection part (21) and the driving part (22) are oppositely arranged on both sides of the rotating shaft (11), the weight of the counterweight is less than the weight of a single material (200) and greater than the weight of the detection part (21).

4. The loading tray material detection device of claim 2, wherein, The driving part (22) can move with the detection part (21) and trigger the sensing piece (3), the driving part (22) has a non-triggering state of moving away from the sensing piece (3) and a triggering state of moving towards the sensing piece (3).

5. The loading tray material detection device of claim 2, wherein, The detection part (21) is a rod-shaped body.

6. The loading tray material detection apparatus according to claim 1, wherein, The feeding tray mechanism (100) comprises a feeding table (101) and a tray (102) arranged on the feeding table (101), the tray (102) is used for accommodating the material (200), the support (1) is detachably connected to the feeding table (101) and located beside the tray (102), and the position of the support (1) relative to the tray (102) is variable to adjust the position of the detection piece (2) relative to the tray (102).

7. The loading tray material detection apparatus according to claim 6, wherein, At least part of the material (200) extends to the outside of the tray (102) to form a detection end (201), the detection piece (2) is located on one side of the material (200) and abuts against the detection end (201), and there is a gap between the end of the detection piece (2) and the tray (102).

8. The loading tray material detection apparatus according to claim 6, wherein, The support (1) is a magnetic table stand, which can magnetically connect the feeding table (101).

9. The loading tray material detection apparatus according to any one of claims 1 to 8, characterized by, The sensing piece (3) is a sensor, and the detection piece (2) can shield the sensing end (31) of the sensor to trigger the sensing piece (3).

10. The loading tray material detection apparatus according to any one of claims 1 to 8, characterized by, The feeding tray material detection device further comprises a blocking piece (4) fixedly connected to the support (1), the blocking piece (4) being capable of abutting against the rotating detection piece (2) to limit the rotating angle of the detection piece (2).

Images