New annular high-brightness product nozzle and nozzle assembly

Abstract

The present invention discloses a new type of annular high-gloss product suction nozzle, which includes a connecting seat, a suction head, a spring, an adjusting seat and a cushion block. The connecting seat has a through first inner cavity. One end of the suction head is provided with a receiving cavity having an opening, and a through second inner cavity is provided from the receiving cavity to the other end of the suction head. The other end is inserted into the first inner cavity, and the suction head can reciprocate axially along the first inner cavity. The spring is sleeved on the outer periphery of the suction head, one end of the spring abuts against the connecting seat, and the other end abuts against the suction head. The adjusting seat is fixed in the receiving cavity. The adjusting seat has an air passage, the air inlet of the air passage is arranged on the side surface of the adjusting seat, and the air outlet of the air passage communicates with the second inner cavity. The cushion block is fixed on the bottom surface of the adjusting seat, and the cushion block is made of an elastic soft material. The present invention can suck annular high-gloss products without scratching the high-gloss surface of the products. The present invention also discloses a suction nozzle assembly, and the suction nozzle in the suction nozzle assembly can be lifted and rotated.

Description

Technical Field

[0001] The present invention relates to the field of product suction, and particularly to a novel annular high-gloss product suction nozzle and a suction nozzle assembly. Background Art

[0002] For annular products or annular boss products with a high-gloss surface treatment, their surfaces cannot be scratched or soiled. Such high-precision high-gloss products are not easy to load with jaw-type tools and can only be adsorbed on the periphery. Moreover, the high-gloss products cannot touch the suction nozzle to prevent damage to the high-gloss surface. For annular products, most of the area in the middle of the product is hollowed out, and the adsorbable area at the edge of the product is very small. Some annular products have an uneven surface, such as the presence of bosses, and traditional suction nozzles cannot suck such products. Summary of the Invention

[0003] A novel annular high-gloss product suction nozzle includes:

[0004] A connecting seat having a through first inner cavity;

[0005] A suction head with a receiving cavity having an opening at one end. A through second inner cavity is provided from the receiving cavity to the other end of the suction head. The other end is inserted into the first inner cavity, and the suction head can reciprocate axially along the axis of the first inner cavity;

[0006] A spring sleeved on the outer periphery of the suction head, with one end abutted against the connecting seat and the other end abutted against the suction head;

[0007] An adjusting seat fixed in the receiving cavity. The adjusting seat has an air passage, the air inlet of the air passage is arranged on the side surface of the adjusting seat, and the air outlet of the air passage is communicated with the second inner cavity; and

[0008] A cushion block fixed to the bottom surface of the adjusting seat, and the cushion block is made of an elastic soft material.

[0009] The beneficial effect of this embodiment is that the cushion block presses on the annular high-gloss product, and the product sinks into the cushion block, making the two fit closely. Then, a negative pressure is created in the receiving cavity, solving the problem that traditional suction nozzles cannot suck annular high-gloss products; the cushion block can play a buffering role to avoid scratching the high-gloss surface of the product. At the same time, the product and the cushion block fit closely to prevent air leakage at the joint surface of the product and the cushion block, resulting in the product falling off; the spring plays a buffering role to prevent the product from being crushed.

[0010] In some embodiments, a first hole is provided on the outer wall of the suction head, and a connecting piece is provided on the side wall of the connecting seat. The end of the connecting piece extends into the first hole, and the length of the first hole along the axial direction of the suction head is greater than the length of the end of the connecting piece along the axial direction of the suction head. The beneficial effect is that the suction head has a certain reciprocating movement space in the axial direction.

[0011] In some embodiments, the axial length of the accommodation cavity is greater than the axial length of the adjustment base, and the position of the adjustment base in the axial direction can be adjusted. The beneficial effect is that it is suitable for annular products of various heights. When the product is relatively tall, the adjustment base can be adjusted upward axially to prevent the product from being crushed; when the product is relatively short, the adjustment base can be adjusted downward axially to prevent the product from not contacting the cushion block or the product not being in close contact with the cushion block.

[0012] In some embodiments, a first bolt is provided on the side of the suction head. The first bolt is threadedly connected to the suction head, and the end of the first bolt abuts against the side of the adjustment base to fix the adjustment base in the accommodation cavity. The beneficial effect is that it is convenient to adjust the position of the adjustment base.

[0013] In some embodiments, a plurality of air inlets are provided on the side of the adjustment base, and there is a gap between the adjustment base and the inner wall of the accommodation cavity. The beneficial effect is that the air in and near the accommodation cavity can be quickly evacuated to form a negative pressure.

[0014] In some embodiments, the material of the cushion block is foam or rubber with a Shore hardness not exceeding 30. The beneficial effects are that foam and rubber materials are elastic and can quickly recover after the external force is removed. Foam and rubber with a hardness not exceeding 30 have a low surface hardness and will not scratch the high-gloss surface of the product.

[0015] According to another aspect of the present invention, a nozzle assembly is provided, which includes at least one nozzle, a hollow shaft motor, a rotary joint, and a mounting member capable of lifting movement. The nozzle extends in the vertical direction. A hollow shaft motor is fixed on each mounting member. One end of the motor shaft of the hollow shaft motor is inserted into the first inner cavity of the nozzle and fixed, and the other end of the motor shaft is connected to the rotary joint.

[0016] The beneficial effect of this embodiment is that it can suck annular high-gloss products without scratching the product surface, and the nozzle can rotate to play a role in adjusting the product angle.

[0017] In some embodiments, a lifting mechanism for driving the mounting member to lift is further included. The lifting mechanism includes a return spring, a moving pair for restricting the mounting member to move linearly in the vertical direction, a swinging member located above the mounting member, and a stepping motor for driving the swinging member to swing up and down. One end of the return spring is connected to the mounting member and the other end is fixed. When the swinging member swings downward, it can press down the mounting member and cause the mounting member to descend. The beneficial effect is that the swinging member pushes the nozzle down, and the spring pulls the nozzle up to realize the lifting of the nozzle, which has the advantage of simple structure.

[0018] In some embodiments, the nozzle assembly further includes a plate perpendicular to the output shaft of the stepper motor. The stepper motor can drive the plate to rotate in a vertical plane. There is a notch at the edge of the plate, and a groove-type photoelectric sensor is provided beside the plate. The outer edge of the plate extends into the groove of the groove-type photoelectric sensor. When the swinging member is in a state where it does not press down on one of the mounting members, the notch aligns with the groove of the groove-type photoelectric sensor. The beneficial effect is that the plate and the groove-type photoelectric sensor can detect whether the stepper motor is reset, preventing the stepper motor from rotating endlessly.

[0019] In some embodiments, there are an even number of mounting members. Every two adjacent mounting members form a group, and each group of mounting members shares a swinging member and a stepper motor. The beneficial effect is that the number of stepper motors can be reduced, the cost can be lowered, and the weight of the assembly can be reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 Exploded view of the nozzle of the novel annular high-gloss product according to an embodiment of the present disclosure.

[0021] Figure 2 Cross-sectional view of the nozzle of the novel annular high-gloss product according to an embodiment of the present disclosure along the central axis.

[0022] Figure 3 Front view of the nozzle assembly according to an embodiment of the present disclosure.

[0023] Figure 4 Side view of the nozzle assembly according to an embodiment of the present disclosure. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] The present invention will be further described in detail below with reference to the accompanying drawings.

[0025] Please refer to Figure 1 and Figure 2 , the nozzle 100 of the novel annular high-gloss product includes:

[0026] A connecting seat 110, the connecting seat 110 has a through first inner cavity 111;

[0027] A suction head 120, one end of the suction head 120 is provided with a receiving cavity 121 having an opening. From the receiving cavity 121 to the other end of the suction head 120, there is a through second inner cavity 122. The other end is inserted into the first inner cavity 111, and the suction head 120 can reciprocate along the axial direction of the first inner cavity 111;

[0028] A spring 130, the spring 130 is sleeved on the outer periphery of the suction head 120. One end of the spring 130 abuts against the connecting seat 110, and the other end abuts against the suction head 120;

[0029] Adjusting seat 140 is fixed within the accommodating cavity 121. The adjusting seat 140 has an air passage 141. The air inlet 142 of the air passage 141 is disposed on the side surface of the adjusting seat 140, and the air outlet 143 of the air passage 141 communicates with the second inner cavity 122; and

[0030] Pad 150 is fixed to the bottom surface of the adjusting seat 140. The pad 150 is made of an elastic soft material.

[0031] In the embodiment provided by the present disclosure, the first inner cavity 111, the second inner cavity 122, and the air passage 141 form a through-channel for air to pass through. When the novel annular high-gloss product suction nozzle 100 provided by the present disclosure is connected to a vacuum generator, the air inside and near the accommodating cavity 121 is successively drawn away through the air passage 141, the second inner cavity 122, and the first inner cavity 111, creating a negative pressure inside and near the accommodating cavity 121. For annular products, most of the area in the middle of the product is hollowed out, and the adsorbable area is very small. Some product surfaces are even uneven, for example, there are bosses on the product surface, and it is very difficult to pick up these products with traditional suction nozzles. In order to effectively and firmly adsorb annular high-gloss products, in the present disclosure, an adjusting seat 140 is provided inside the accommodating cavity 121, the air inlet 142 is opened on the side surface of the adjusting seat 140, and a pad 150 made of an elastic soft material is provided on the bottom surface of the adjusting seat 140. During use, the open end of the accommodating cavity 121 faces downward, the accommodating cavity 121 is placed above the product, and the pad 150 is pre-pressed against the product, causing the product to sink into the pad 150 to a certain extent. Then, a negative pressure is formed inside the accommodating cavity 121 by pumping air, thereby adsorbing the product on the surface of the pad 150. In order to enable the pad 150 to pre-press the product, the distance from the surface of the pad 150 to the open end surface of the accommodating cavity 121 is L, and L is less than the height of the product. The pad 150 can play a buffering role to avoid scratching the high-gloss surface of the product. At the same time, the pad 150 will produce a certain degree of depression, making the product fit tightly with the pad 150 and preventing air leakage at the fitting surface of the product and the pad 150, resulting in the product falling off. In the present disclosure, the suction head 120 can reciprocate along the axial direction of the first inner cavity 111 and is always pushed by the spring 130. When pressing the pad 150 against the product to make them fit, the spring 130 will also be compressed, and its advantage is to play a buffering role to prevent the product from being damaged.

[0032] In some embodiments, please refer to Figure 2, a first hole 123 is provided on the outer wall of the suction head 120, and a connecting member 160 is provided on the side wall of the connecting seat 110. The end of the connecting member 160 extends into the first hole 123, and the length of the first hole 123 along the axial direction of the suction head 120 is greater than the length of the end of the connecting member 160 along the axial direction of the suction head 120. For example, the connecting member 160 is a bolt, the connecting member 160 is threadedly connected to the connecting seat 110, and the diameter of the end of the connecting member 160 is smaller than the length and width of the first hole 123. The first hole 123 can be a blind hole or a through hole. The upper end of the first hole 123 is limited by the end of the connecting member 160, which is equivalent to the suction head 120 hanging on the connecting member 160, so the suction head 120 will not detach from the connecting seat 110. The first hole 123 has a certain length in the axial direction of the suction head 120, providing a space for the suction head 120 to move axially. When the cushion block 150 presses on the product, the spring 130 is further compressed, and the suction head 120 moves upward axially. The spring 130 also plays a buffering role to prevent the product from being damaged.

[0033] In some embodiments, the axial length of the accommodating cavity 121 is greater than the axial length of the adjusting seat 140, and the position of the adjusting seat 140 in the axial direction can be adjusted. The heights of different annular products are different. When the product is relatively high, the adjusting seat 140 can be adjusted upward axially to prevent the product from being damaged. When the product is relatively low, the adjusting seat 140 can be adjusted downward axially to prevent the product from not contacting the cushion block 150 or the product not being in close contact with the cushion block 150.

[0034] In some embodiments, please refer to Figure 2 , a first bolt 170 is provided on the side of the suction head 120. The first bolt 170 is threadedly connected to the suction head 120, and the end of the first bolt 170 abuts against the side of the adjusting seat 140 to fix the adjusting seat 140 in the accommodating cavity 121. The adjusting seat 140 in this embodiment is fixed in a detachable manner, which is easy to adjust the axial position of the adjusting seat 140. For example, loosen the first bolt 170, move the adjusting seat 140 axially, and then tighten the first bolt 170 after adjusting to a suitable position.

[0035] In some embodiments, please refer to Figure 2, a plurality of air inlets 142 are provided on the side surface of the adjusting seat 140, and there is a gap between the adjusting seat 140 and the inner wall of the accommodating cavity 121. For example, the adjusting seat 140 includes a cylindrical first part 144 and a cylindrical second part 145, wherein the diameter of the first part 144 is smaller than that of the second part 145, and the end surface of the first part 144 is integrally connected with the end surface of the second part 145. The air inlets 142 are arranged on the outer peripheral surface of the second part 145, and the air outlets 143 are arranged on the free end surface of the first part 144. The air passage 141 extends axially along the first part 144 from the air outlet 143 to the inside of the second part 145, and then extends radially along the second part 145 to each air inlet 142. The air entering from the opening of the accommodating cavity 121 enters the air inlets 142 from this gap and is sucked away.

[0036] In some embodiments, the cushion block 150 is made of foam or rubber with a Shore hardness not exceeding 30. The foam material is elastic and can quickly recover after the external force is removed, and the surface hardness of the foam is low and will not scratch the high-gloss surface of the product. Of course, it is also possible to choose rubber, but the surface hardness of the rubber cannot be too large to avoid scratching the high-gloss surface of the product.

[0037] According to another aspect of the present invention, please refer to Figure 3 and Figure 4 , a nozzle assembly is provided, including a nozzle 100, a hollow shaft motor 200, a rotary joint 300, and a mounting member 400 capable of lifting and moving. In Figure 3 and Figure 4 shown in the embodiment, the mounting member 400 is an L-shaped plate, but it is not limited thereto. In Figure 3 and Figure 4 shown in the embodiment, the central axis of the nozzle 100 and the motor shaft 210 of the hollow shaft motor 200 are both arranged in the vertical direction. The mounting members 400 are arranged side by side, and a hollow shaft motor 200 is fixed on each mounting member 400. One end of the motor shaft 210 of the hollow shaft motor 200 is inserted into the first inner cavity 111 of the nozzle 100 and fixed, and the other end of the motor shaft 210 is connected to the rotary joint 300. The motor shaft 210 of the hollow shaft motor 200 is hollow, and the motor shaft 210, the first inner cavity 111, the second inner cavity 122, and the air passage 141 form a through gas passage. When in use, the rotary joint 300 is connected to an external vacuum generator, and the vacuum generator sucks air to create a negative pressure near the adjusting seat 140. The hollow shaft motor 200 is used to drive the nozzle 100 to rotate. After sucking the product, by rotating the nozzle 100, the angle of the product can be adjusted.

[0038] In some embodiments, it further includes a lifting mechanism for driving the lifting of the mounting component 400. The lifting mechanism includes a return spring 510, a moving pair 520 that defines the linear movement of the mounting component 400 in the vertical direction, a swinging component 530 located above the mounting component 400, and a stepping motor 540 for driving the swinging component 530 to swing up and down. Please refer to Figure 4 , the return spring 510 is arranged on the back surface of the mounting component 400, one end of which is connected to the mounting component 400 and the other end is fixed. For example, the moving pair 520 includes a guide rail 521 and a slider 522. The slider 522 is fixed to the back surface of the mounting component 400, and the guide rail 521 extends along the lifting direction of the mounting component 400. The moving pair 520 functions to enable the mounting component 400 to lift in the vertical direction. The swinging component 530 can swing in the vertical direction. When swinging downward, the swinging component 530 presses down on the mounting component 400 to make the mounting component 400 move vertically downward. When swinging upward, the return spring 510 pulls the mounting component 400 vertically upward, thereby realizing the lifting movement of the suction nozzle 120. The swinging component 530 is driven to swing by the stepping motor 540, and the swinging component 530 is arranged offset from the output shaft of the stepping motor 540. For example, in Figure 4 the illustrated embodiment, a connecting rod 550 is provided perpendicular to the output shaft of the stepping motor 540. The end of the connecting rod 550 is away from the straight line where the output shaft is located, and this end is connected to the swinging component 530. Specifically, the swinging component 530 is a rotatable roller. When the swinging component 530 presses down on the mounting component 400, the roller can roll on the upper end of the mounting component 400 to reduce the swinging resistance of the swinging component 530. The structure of the swinging component 530 disclosed in the present disclosure is only a preferred embodiment, but the swinging component 530 is not limited to this form. For example, the swinging component 530 can also be a cylindrical rod or other forms.

[0039] In some embodiments, the suction nozzle assembly further includes a plate 600 perpendicular to the output shaft of the stepping motor 540. The stepping motor 540 can drive the plate 600 to rotate in the vertical plane. A notch 610 is provided at the edge of the plate 600, and a groove-type photoelectric sensor 700 is provided beside the plate 600. The outer edge of the plate 600 extends into the groove of the groove-type photoelectric sensor 700. When the swinging component 530 is in a state where it does not press down on the mounting component 400, the notch 610 is aligned with the groove of the groove-type photoelectric sensor 700. In Figure 3 and Figure 4 the illustrated embodiment, the plate 600 is a circular plate. The output shaft of the stepping motor 540 is coaxial with the plate 600, and the plate 600 is fixedly connected to the connecting rod 550. While the swinging component 530 swings, the plate 600 rotates around its center. In Figure 3 and Figure 4In the illustrated embodiment, the groove type photoelectric sensor 700 is disposed on the top of the board 600. The board 600 and the groove type photoelectric switch 700 are used to detect whether the stepper motor 540 is reset. When implementing the nozzle assembly of the present disclosure, the angle that the stepper motor 540 needs to rotate is calculated according to the height that the nozzle 100 needs to descend, and the angle value is input into an external control system such as a host computer, a PLC system, an industrial control computer, etc. The control system controls the stepper motor 540 to drive the swing member 530 to swing downward. The board 600 will rotate synchronously. The signal transmitting end and the receiving end of the groove type photoelectric switch 700 are blocked by the board 600. At this time, the stepper motor 540 works normally. When the product is sucked, the control system controls the stepper motor 540 to rotate in the reverse direction to drive the swing member 530 to swing upward. The board 600 rotates synchronously. When the notch 610 faces the groove of the groove type photoelectric sensor 700, the transmitting end and the receiving end of the groove type photoelectric sensor 700 are conducted. After an external control system such as a host computer, a PLC system, an industrial control computer, etc. receives this information, it controls the stepper motor 540 to cut off the power supply.

[0040] In some embodiments, the number of the mounting components 400 is an even number. Every two adjacent mounting components 400 form a group, and each group of mounting components 400 shares a swing member 530 and a stepper motor 540. Specifically, in Figure 3 the illustrated embodiment, the swing member 530 is located at the adjacent position of two mounting components 400. When the swing member 530 swings downward clockwise, the swing member 530 presses down one of the mounting components 400, and the nozzle 100 corresponding to this mounting component 400 descends. When the swing member 530 swings downward counterclockwise, the swing member 530 presses down the other mounting component 400, and the nozzle 100 corresponding to this mounting component 400 descends. The nozzle assembly of this embodiment reduces the usage amount of the stepper motor 540, saves costs and reduces the weight of the components.

[0041] The above are only some embodiments of the present invention. For those of ordinary skill in the art, without departing from the inventive concept of the present invention, several deformations and improvements can still be made, and these all belong to the protection scope of the present invention.

Claims

1. The novel annular high-brightness product suction nozzle is characterized in that, Comprising: A connecting seat having a through first inner cavity; A suction head, one end of the suction head is provided with a receiving cavity having an opening, a through second inner cavity is provided from the receiving cavity to the other end of the suction head, the other end is inserted into the first inner cavity, and the suction head can reciprocate axially along the first inner cavity; A spring sleeved on the outer periphery of the suction head, one end of the spring abuts against the connecting seat, and the other end abuts against the suction head; An adjusting seat fixed in the receiving cavity, the adjusting seat has an air passage, an air inlet of the air passage is arranged on the side surface of the adjusting seat, and an air outlet of the air passage communicates with the second inner cavity; and A cushion block fixed on the bottom surface of the adjusting seat, the cushion block is made of an elastic soft material; The distance from the surface of the cushion block to the opening end surface of the receiving cavity is L, and L is less than the height of the product; The side surface of the adjusting seat is provided with a plurality of air inlets, and there is a gap between the adjusting seat and the inner wall of the receiving cavity.

2. The novel annular high-brightness product nozzle according to claim 1, wherein The outer wall of the suction head is provided with a first hole, a connecting member is provided on the side wall of the connecting seat, and the end of the connecting member extends into the first hole, and the length of the first hole along the axial direction of the suction head is greater than the length of the end of the connecting member along the axial direction of the suction head.

3. The novel annular high-brightness product nozzle according to claim 1, wherein The axial length of the receiving cavity is greater than the axial length of the adjusting seat, and the position of the adjusting seat in the axial direction can be adjusted.

4. The novel annular high-brightness product suction nozzle according to claim 3, characterized in that, The side surface of the suction head is provided with a first bolt, the first bolt is threadedly connected with the suction head, and the end of the first bolt abuts against the side surface of the adjusting seat to fix the adjusting seat in the receiving cavity.

5. The novel annular high-brightness product suction nozzle according to claim 1, wherein The material of the cushion block is foam or rubber with a Shore hardness not exceeding 30.

6. The nozzle assembly, characterized in that, Including at least one suction nozzle, a hollow shaft motor, a rotary joint and a mounting member capable of lifting and moving according to any one of claims 1-5, the suction nozzle extends in the vertical direction, a hollow shaft motor is fixed on each mounting member, one end of the motor shaft of the hollow shaft motor is inserted into the first inner cavity of the suction nozzle and fixed, and the other end of the motor shaft is connected with the rotary joint.

7. The nozzle assembly according to claim 6, characterized in that, It further includes a lifting mechanism for driving the mounting member to lift, the lifting mechanism includes a return spring, a moving pair for limiting the linear movement of the mounting member in the vertical direction, a swinging member located above the mounting member, and a stepping motor for driving the swinging member to swing up and down, one end of the return spring is connected to the mounting member and the other end is fixed, and when the swinging member swings downward, it can press down the mounting member and make the mounting member descend.

8. The nozzle assembly according to claim 7, characterized in that The suction nozzle assembly further includes a plate perpendicular to the output shaft of the stepping motor, the stepping motor can drive the plate to rotate in the vertical plane, a notch is provided at the edge of the plate, a groove type photoelectric sensor is provided beside the plate, the outer edge of the plate extends into the groove of the groove type photoelectric sensor, and when the swinging member is in a state where it does not press down the mounting member, the notch is aligned with the groove of the groove type photoelectric sensor.

9. The nozzle assembly according to claim 7, characterized in that, There are an even number of the mounting members, every two adjacent mounting members form a group, and each group of mounting members shares a swinging member and a stepping motor.

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