Disclosure of Invention
The utility model aims to overcome the defects of the feeding device of the existing scattered element device and solve the difficulty in the prior art. Therefore, the feeding device for scattered components is small and light in weight through novel structure and function integration fusion of feeding and pose post-processing, efficient feeding can be achieved, material taking and inserting yield is improved, and a larger number of feeding devices are accommodated in a single-side space of a special-shaped inserting machine.
The feeding device for scattered components comprises a fixed bottom plate, wherein a storage bin, a vibration feeding mechanism and a post-processing unit are sequentially arranged on the fixed bottom plate, wherein the vibration feeding mechanism is arranged on the fixed bottom plate, and the post-processing unit is arranged on the fixed bottom plate
The device comprises a storage bin, a vibration feeding mechanism, a vibration conveying mechanism, a guide baffle plate, a backflow guide baffle plate and a guide baffle plate, wherein the storage bin is internally provided with the belt conveying mechanism, the belt conveying mechanism is butted with the vibration feeding mechanism and comprises a first conveying belt and a second conveying belt, the guide baffle plate is arranged above the first conveying belt, a direction selecting baffle strip is arranged on the guide baffle plate, the backflow guide baffle plate is arranged above the second conveying belt, components placed in the storage bin are conveyed towards the vibration feeding mechanism by the first conveying belt, the guide baffle plate and the direction selecting baffle strip act together to screen the components which do not accord with the placing state onto the second conveying belt, and the components screened onto the second conveying belt are guided to flow back onto the first conveying belt by the backflow guide baffle plate;
the vibration feeding mechanism comprises a material dividing channel, a directional material channel and a vibrator, wherein one end of the material dividing channel is in butt joint with the first conveying belt, the other end of the material dividing channel is in butt joint with one end of the directional material channel, the other end of the directional material channel is in butt joint with the post-processing unit, the vibrator is used for driving the material dividing channel and the directional material channel to vibrate so that components conveyed from the first conveying belt by the material dividing channel are screened and conveyed to the directional material channel, and the directional material channel overturns the components screened by the material dividing channel and conveys the components to the post-processing unit;
the post-processing unit comprises a distributing mechanism, a positioning mechanism and a shaping mechanism, wherein the distributing mechanism sequentially lifts the components conveyed by the directional material channel to the positioning mechanism for positioning, and the shaping mechanism shapes the positioned component pins.
Preferably, the first conveying belt is horizontally arranged, the second conveying belt is obliquely arranged, one end of the second conveying belt is lower than the first conveying belt, and the other end of the second conveying belt is higher than the first conveying belt.
Preferably, the conveying speed of the second conveying belt is greater than the conveying speed of the first conveying belt line.
Preferably, the feed bin includes first riser and the second riser of vertical setting, first riser with the second riser constitutes two lateral walls of feed bin, wherein, first conveyor belt's one side is pressed close to first riser, first conveyor belt's opposite side is pressed close to one side of second conveyor belt, second conveyor belt's opposite side is pressed close to the second riser.
Furthermore, an air blowing pipe is arranged on the material dividing channel.
Furthermore, the distributing mechanism comprises a distributing cylinder and a distributing top block, a distributing groove capable of being in butt joint with the directional material channel is formed in the distributing top block, and the distributing cylinder is used for driving the distributing top block to ascend to be in butt joint with the positioning mechanism.
Furthermore, the positioning mechanism comprises a positioning cylinder, a positioning push block and a positioning material channel, the distribution groove of the distribution push block rises to be in butt joint with the positioning material channel, the distribution push block is located between the positioning push block and the positioning material channel, and the positioning push block is driven by the positioning cylinder to move towards the positioning material channel, so that components on the distribution groove are pushed to the reference surface of the positioning material channel to be positioned.
Further, the shaping mechanism comprises a shaping cylinder, a shaping jig and a shaping groove, the shaping groove is located at the bottom of the positioning material channel, the shaping jig is located below the shaping groove, and the shaping cylinder drives the two clamping blocks of the shaping jig to move oppositely so as to shape the pins of the components exposed from the shaping groove.
Preferably, one surface of each of the two clamping blocks, which faces to each other, is provided with a V-shaped groove.
The utility model abandons the prior alignment and orientation structure of a circular vibration disc, a material channel and a linear feeder and has the following beneficial effects:
1. the double-conveying belt is adopted for circular feeding and is matched with multi-stage screening such as guiding, direction selecting, direction dividing, orienting and the like, so that continuous and accurate feeding can be provided, the small size and light weight of the feeding device are realized, the moving, replacing and maintaining are convenient, the noise can be greatly reduced, and the influence of vibration on the precision of the special-shaped inserting machine is reduced;
2. a plurality of feeding devices of the utility model can be placed in the single-side space of one special-shaped inserting machine, so that the feeding space of the inserting machine is effectively utilized, and the bottleneck that the vibrating disk feeder occupies much space due to the overall dimension can be solved;
3. the pose post-processing, namely the functions of material distribution, positioning, shaping and the like, of scattered components are organically integrated and fused, the material clamping rate of the components is greatly reduced, and the material taking and inserting yield of the components is improved. In addition, by replacing a small number of workpieces or units, scattered elements with different sizes and shapes are compatible, and the flexibility of replacing the scattered elements is improved.
Detailed Description
Reference will now be made in detail to the present embodiments of the present invention, preferred embodiments of which are illustrated in the accompanying drawings, wherein the drawings are provided for the purpose of visually and vividly understanding each and every feature and every technical solution of the present invention, and therefore, should not be construed as limiting the scope of the present invention.
In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, a plurality of means is one or more, a plurality of means is two or more, and greater than, less than, more than, etc. are understood as excluding the essential numbers, and greater than, less than, etc. are understood as including the essential numbers. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present invention, unless otherwise specifically limited, terms such as set, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention by combining the specific contents of the technical solutions.
Referring to fig. 1, 2 and 3, the feeding device for scattered components in the embodiment of the present invention includes a fixed base plate 100, the fixed base plate 100 is used as a reference for installation, and a storage bin 180, a vibration feeding mechanism 200 and a post-processing unit 300 are sequentially disposed on the fixed base plate 100, wherein the storage bin 180 is used for placing the scattered components 400, and storing, conveying, guiding and selecting the scattered components 400 to be arranged.
Be equipped with belt transmission mechanism in the feed bin 180, backward flow guide baffle 160 and guide baffle 150, belt transmission mechanism butt joint vibration feeding mechanism 200, belt transmission mechanism includes first conveyor belt 130 and second conveyor belt 140, guide baffle 150 arranges in the top of first conveyor belt 130, and be equipped with on the guide baffle 150 and select to blend stop 151, backward flow guide baffle 160 arranges in the top of second conveyor belt 140, first conveyor belt 130 will place the components and parts 400 in feed bin 180 and carry towards vibration feeding mechanism 200, guide baffle 150 with select to blend stop 151 combined action, in order to be inconsistent with the components and parts 400 screening of putting the state to second conveyor belt 140 on, through backward flow guide baffle 160 with will screen components and parts 400 guide backward flow to first conveyor belt 130 on second conveyor belt 140.
The vibratory feeding mechanism 200 comprises a material dividing channel 210, a directional material channel 230 and a vibrator 220, wherein one end of the material dividing channel 210 is in butt joint with the first conveying belt 130, the other end of the material dividing channel is in butt joint with one end of the directional material channel 230, the other end of the directional material channel 230 is in butt joint with the post-processing unit 300, the vibrator 220 is used for driving the material dividing channel 210 and the directional material channel 230 to vibrate, so that the components 400 conveyed by the first conveying belt 130 to the material dividing channel 210 are screened and conveyed to the directional material channel 230, and the directional material channel 230 overturns the components 400 screened by the directional material channel 210 and conveys the components to the post-processing unit 300.
The post-processing unit 300 includes a material distribution mechanism, a positioning mechanism and a shaping mechanism, wherein the material distribution mechanism sequentially lifts the components 400 conveyed by the directional material channel 230 to the positioning mechanism for positioning, and the pins of the positioned components 400 are shaped by the shaping mechanism.
The belt conveying mechanism is explained in detail with reference to fig. 1, in which the belt conveying mechanism includes a first conveying belt 130 and a second conveying belt 140, and both of the first conveying belt 130 and the second conveying belt 140 are disposed inside the storage bin 180, the first conveying belt 130 is disposed horizontally, the second conveying belt 140 is disposed obliquely, one end of the second conveying belt 140 is lower than the first conveying belt 130, and the other end of the second conveying belt 140 is higher than the first conveying belt 130. Specifically, the first conveyor belt 130 is disposed horizontally, and the second conveyor belt 140 is disposed at an angle such that one end thereof is lower than the first conveyor belt 130 (lower end of height) and the other end thereof is higher than the first conveyor belt 130 (lower end of height). In the lower end region of the height, the components 400 on the first conveyor belt 130 may fall onto the second conveyor belt 140 under the action of gravity. In the higher area, a feed-back guide baffle 160 is disposed at one end of the second conveyor belt 140 along the arrow direction thereon for guiding the components 400 to flow onto the first conveyor belt 130, and the height difference is set for realizing a continuous and uninterrupted conveying circulation of the components 400 between the first conveyor belt 130 and the second conveyor belt 140.
As shown in fig. 1, 2, 3, and 4, the guide fence 150 is installed above the first conveyor belt 130, and the guide fence 150 includes a first connecting section 152 and a second connecting section 153; the first connecting section 152 is parallel to the conveying direction of the first conveyor belt 130 (the direction of the arrow shown in fig. 2), and the first connecting section 152 forms a supply channel 170 on the side of the first conveyor belt 130 adjacent to the second conveyor belt 140 for only passing a single component 400, and the supply channel 170 is butted against the branch material channel 210 (refer to fig. 4). One end of the second connection segment 153 of the guide baffle 150 is smoothly connected to the first connection segment 152, and the other end of the second connection segment extends obliquely to be attached to the inner wall of the storage bin 180 along the direction that the accommodating space of the component 400 in the storage bin 180 is gradually increased. By the oblique arrangement of the second connecting section 153, the plurality of components 400 are arranged from wide to narrow in the direction of the arrow in fig. 2, so that the number of components 400 conveyed by the first conveyor belt 130 is reduced near the butt joint position of the feeding passage 170, a single-row distribution with few layers is formed, and the components 400 in a part of the overlapped layers and a part of the posture are rejected by the gravity and the conveying action of the first conveyor belt 130 and fall onto the second conveyor belt 140. In addition, referring to fig. 2 again, during the process of transporting the first conveyor belt 130 in the direction of the arrow, some components 400 drop onto the second conveyor belt 140 due to mutual pressing and the transporting action of the first conveyor belt 130, and the dropped components 400 are then transported by the second conveyor belt 140 and guided by the feeding-back guide baffle 160 to return to the first conveyor belt 130.
Referring to fig. 3 again, the first connecting section 152 of the guide baffle 150 extends upward from the feeding channel 170 to form a direction selection bar 151, and the height difference between the direction selection bar 151 and the first conveyor belt 130 is slightly larger than the height dimension of the selected posture of the component 400, and only the component 400 in the selected posture is allowed to pass through. The first conveying belt 130 conveys a plurality of components 400, the components 400 are arranged and removed through the guide baffle 150, and only the components 400 in the selected posture can pass through under the action of the direction selecting barrier 151 and are conveyed to the feeding channel 170; the components 400 in other postures are intercepted by the selected direction-changing bars 151 and fall from the side edge of the first conveyor belt 130 onto the second conveyor belt 140, and the fallen components 400 are subsequently returned onto the first conveyor belt 130 by the conveyance of the second conveyor belt 140 and the guidance of the return guide plate 160.
The cooperation of the first conveyor belt 130, the second conveyor belt 140, the backflow guide baffle 160, the guide baffle 150, and the direction selection baffle 151 can realize continuous sequential alignment of the components 400 into a selected posture, thereby achieving continuous feeding and screening circulation effects. Secondly, the dual continuous guiding and direction-selecting functions of the guiding baffle 150 and the direction-selecting baffle 151 can eliminate the accumulation of the components 400 in the silo 180 and the congestion in the feeding channel 170, and prevent the material from being blocked. In addition, the posture of the component 400 screened from the first conveyor belt 130 is automatically adjusted in the process of falling to the second conveyor belt 140, the component 400 is adjusted to the selected posture with a certain probability in the next conveying cycle, and the impact force caused by the falling of the component 400 can be reduced under the buffer action of the belts, so that the damage to pins or pins of the component 400 is prevented. After multiple delivery screening cycles, the attitude of the component 400 will have a greater probability of being adjusted to the selected attitude.
Preferably, since the first conveyor belt 130 is blocked by the guide baffle 150 and the direction-selecting baffle 151 during the conveying of the elements 400, in order to maintain the material balance during the feeding and screening cycle, the running speeds of the first conveyor belt 130 and the second conveyor belt 140 can be independently adjusted, and the conveying speed of the second conveyor belt 140 is greater than that of the first conveyor belt 130.
Further, referring to fig. 4, the base 100 is installed with a first vertical plate 110 and a second vertical plate 120 which are vertically disposed, and form two sidewalls of the bin 180. The first vertical plate 110 is attached to one side of the first conveyor belt 130, the second vertical plate 120 is attached to one side of the second conveyor belt 140, and the gap between the attached sides is set small enough to prevent the pins or stitches of the component 400 from entering the gap and causing material jamming.
Preferably, the gaps between the guide baffle 150 and the reflow guide baffle 160 and the first conveyor belt 130 and the second conveyor belt 140 are set small enough to prevent the pins or pins of the component 400 from entering the gaps and causing jamming.
Specifically, as shown in fig. 4, the vibration feeding mechanism 200 includes a material dividing channel 210, a material orienting channel 230, and a vibrator 220. The material dividing channel 210 and the directional material channel 230 are connected into a whole and arranged on the vibrator 220, one end of the material dividing channel 210 is in butt joint with the material supply channel 170, and one end of the directional material channel 230 is in butt joint with the material supply post-processing unit 300. Specifically, the material channel 210 is provided with a notch or a slope, so that the component 400 can be separated into the material channel 210 by only selecting the only one of the selected postures (the selected posture of the component 400 shown in fig. 4 in this embodiment is flat, and the only one of the selected postures is a posture in which the body of the component 400 is flat and the pin is downward) under the action of the vibrator 220, and the rest postures can be dropped onto the second belt transmission line 140 under the action of gravity because the component 400 cannot maintain balance on the notch or the slope of the material channel 210. The front section of the directional material channel 230 from the connection part of the directional material channel 210 to the direction of the post-processing unit 300 is set into a curved surface guide material channel, and the material channel gradually and smoothly transits from the vertical direction to the horizontal direction. Under the vibration of the vibrator 220, the posture of the component 400 is adjusted smoothly in the guide material channel through the component 400 of the material channel 210, the posture is changed by 90 degrees, namely, the component is gradually and smoothly transited from the vertical direction to the horizontal direction, and then the component is oriented to be suitable for the posture of sucking or clamping of the special-shaped inserting machine. The rear section of the orientation channel 230 is a horizontally disposed track for aligning and sequencing the oriented components 400 to the supply post-processing unit 300.
Preferably, an air blowing pipe 240 is arranged above the material dividing channel 210, so that the postures of the components 400 which do not meet the requirements are removed, and the accuracy of dividing and orienting the components 400 is improved.
Further, as shown in fig. 4, in the example, the position of the component 400 is changed by 90 ° through the material guiding channel by the material dividing channel 210 and the material orienting channel 230, that is, the position is changed from vertical to horizontal, and the material guiding channel may be provided with other shapes as required, so as to change the position of the component 400 from horizontal to vertical, or maintain the horizontal or vertical position unchanged.
Preferably, as shown in fig. 5 and 6, the material separating mechanism includes a material separating cylinder 320 and a material separating top block 321, a material separating groove 322 capable of being butted with the directional material channel 230 is arranged on the material separating top block 321, and the material separating cylinder 320 is used for driving the material separating top block 321 to ascend to be butted with the positioning mechanism. The positioning mechanism comprises a positioning air cylinder 331, a positioning push block 332 and a positioning material channel 333, after the material distribution groove 322 of the material distribution push block 321 rises to be in butt joint with the positioning material channel 333, the material distribution push block 321 is located between the positioning push block 332 and the positioning material channel 333, the positioning push block 332 is driven to move towards the positioning material channel 333 through the positioning air cylinder 331, and therefore the component 400 on the material distribution groove 322 is pushed to the reference surface of the positioning material channel 333 to be positioned. The shaping mechanism comprises a shaping cylinder 341, a shaping jig 342 and a shaping groove 311, the shaping groove 311 is positioned at the bottom of the positioning channel 333, the shaping jig 342 is positioned below the shaping groove 311, and the shaping cylinder 341 drives the two clamping blocks of the shaping jig 342 to move oppositely so as to shape the pins of the component 400 exposed out of the shaping groove 311. Preferably, a V-shaped groove is formed in the opposite surface of the two clamping blocks.
Referring to fig. 5 and 6, the post-processing unit 300 divides, positions and shapes the orderly components 400 arranged on the directional material channel 230 for taking materials of the special-shaped insertion machine. Specifically, the post-processing unit 300 includes a material distribution mechanism, a positioning mechanism, and a shaping mechanism. The material distributing mechanism is composed of a material distributing cylinder 320, a material distributing top block 321, a material distributing in-place sensor 323 and the like, wherein a shaft rod extending out of the material distributing cylinder 320 is fixedly connected with the material distributing block 321, and a material distributing groove 322 is formed in the material distributing top block 321. The separating groove 322 has a channel for avoiding the pins or stitches of the component 400 transmitted from the directional material path 230, so as to prevent spatial interference. The dispensing position sensor 323 is used to detect whether the component 400 has reached the dispensing recess 322. If the component 400 is sensed by the in-position distributing sensor 323, the distributing cylinder 320 is actuated to drive the distributing jacking block 321 to jack the single component 400 to a predetermined height through the distributing groove 322, so that the single component 400 is separated from the other components 400 in the directional material channel 230.
The positioning mechanism comprises a positioning cylinder 331, a positioning push block 332 and a positioning material channel 333, wherein an extending shaft rod of the positioning cylinder 331 is fixedly connected with the positioning push block 332, the positioning push block 332 is in an 'L' shape, and the positioning material channel 333 is butted with the positioning material channel 230 and is positioned adjacent to the material distribution groove 322. When the component 400 is conveyed to the position of the material separating groove 322 through the material orienting channel 230 and the material separating and ejecting block 321 ejects the component 400 to a predetermined height, the positioning cylinder 331 acts to drive the positioning and pushing block 332 to push the body of the component 400 toward the material positioning channel 333. In the pushing process of the positioning pushing block 332, the "L" shaped positioning pushing block 332 contacts with one side surface of the component 400 body, and the positioning material channel 333 guides the other adjacent surface of the component 400 body, so as to correct the position and rotation deviation of the component 400 body.
Aforementioned plastic mechanism includes plastic cylinder 341, plastic tool 342, backup pad 310 and components and parts inductor 343 that targets in place, wherein the top installation components and parts inductor 343 that targets in place of backup pad 310, plastic tool 342 comprises two relative parallel arrangement's clamp splice, the final position that location ejector pad 332 promoted components and parts 400 is confirmed by the reference surface of location material way 333, after spacing effect, components and parts 400 increase a locating surface more, components and parts 400 have three locating surface like this, further strengthen the deviation effect of rectifying of components and parts 400 body, realize accurate position location. After the three surfaces are positioned, the shaping cylinder 341 acts to drive the two clamping blocks of the shaping jig 342 to move oppositely, so as to shape the pins or pins of the component 400 positioned on the positioning material channel 333, so as to meet the form and position tolerance condition required by the insertion of the component 400. After the shaping action is completed, the signal of the component in-place sensor 343 is used to detect whether the component 400 can be used for taking materials by the special-shaped inserting machine, and to determine whether the component 400 is taken by the special-shaped inserting machine.
The two clamping blocks on the shaping jig 342 may be designed into "V" grooves or other shapes as required for correcting the span of the pins or pins of the component 400 to meet the form and position tolerance required for the insertion of the component 400.
Further, if the pins or pins of the component 400 are made of hard material or have a large size, the shaping mechanism has a limited effect, and is not suitable for shaping to prevent the body of the component 400 from being damaged. If the pins or pins of the component 400 are formed by stamping and have a curved shape, the shaping may result in a change in the shape of the formed component. In these cases, the function of the reforming mechanism is not required, and the reforming mechanism can be removed from installation or set to an inoperative state.
In summary, the functions of the feeding device of the present invention include guiding, selecting direction, direction dividing, orienting, distributing, positioning, shaping, etc. which are performed in sequence, and the working process of the feeding device of the present invention is as follows: when feeding, the components 400 are placed in the bin 180, that is, on the first conveyor belt 130 and the second conveyor belt 140, and the components 400 are sequentially conveyed to the vibration feeding mechanism 200 by the circulating conveyance of the two conveyor belts. During the transportation process, the components 400 are arranged in a single row with few layers by the action of the guiding baffle 150, and the overlapped or accumulated components 400 are removed by gravity and belt transmission action and fall onto the second conveyor belt 140, and then are transported back to the first conveyor belt 130 again. Then, under the action of the direction-selecting baffle 151, only the components 400 in the selected posture can pass through and be sent to the feeding channel 170, and the components 400 in other postures are intercepted by the baffle 151, fall onto the second conveyor belt 140 from the side edge of the first conveyor belt 130, and are subsequently re-conveyed back to the first conveyor belt 130. Subsequently, under the action of the sorting channel 210, only the only selected posture of the components 400 passes through the sorting channel 210, and the rest postures fall onto the second belt transmission line 140 under the action of the gravity thereof, and are subsequently re-conveyed back to the first conveying belt 130. Then, the components 400 arranged in order on the directional material channel 230 are conveyed to a material distribution mechanism by the vibrator 220, and after the components 400 are detected in place by the material distribution in-place sensor 323, the material distribution cylinder 320 drives the material distribution jacking block 321 to jack up the single component 400 through the material distribution groove 322 so as to separate the single component 400. Subsequently, the positioning cylinder 331 drives the positioning push block 332 to position the body of the component 400 on three sides formed by the positioning push block 332 and the positioning material channel 333, so as to correct the position and rotation deviation of the body of the component 400, and thus, accurate pose orientation is realized. Then, the shaping cylinder 341 drives the two clamping blocks of the shaping jig 342 to move in opposite directions, so as to shape the pins or the pins of the component 400 positioned on the positioning material channel 333, and the pins or the pins are used for taking materials of the special-shaped inserting machine.
The embodiments of the present invention have been described in detail with reference to fig. 1 to 6, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.