CN107585537B - Ball bearing wave-shaped retainer homodromous material-mixing split charging equipment - Google Patents
Ball bearing wave-shaped retainer homodromous material-mixing split charging equipment Download PDFInfo
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Abstract
The invention discloses ball bearing wave-shaped retainer homodromous material-mixing split charging equipment, which comprises a rack, and a feeding mechanism, a material taking mechanism, a sorting mechanism and a material-mixing rod which are sequentially arranged, wherein the feeding mechanism consists of a feeding disc and a disc-shaped cam mechanism for driving the feeding disc to be closed in geometric shape; the material taking mechanism comprises a crank, a cylindrical pin and a group of flat strip-shaped material taking rods, wherein the crank is hinged to the frame, the cylindrical pin is fixed at the tail end of the crank, one end of each material taking rod is sleeved on the connecting pin in a penetrating way, and the other end of each material taking rod naturally sags; the sorting mechanism comprises a slide, an electromagnet and a cylindrical cam mechanism with a closed geometric shape; the slide comprises a stripper plate, a sorting plate and a blanking plate from top to bottom in sequence; the upper surface of the slide is provided with a chute; the section of the chute positioned on the stripper plate is S-shaped; and a sorting chute is arranged beside each chute on the blanking plate in parallel.
Description
Technical Field
The invention relates to a device for sorting according to the characteristics or features of articles or materials, in particular to a front-back sorting device of a bearing retainer.
Background
The bearing retainer, also called a bearing retainer, refers to a bearing part which partially wraps all or part of the rolling bodies and moves along with the rolling bodies, and is used for isolating the rolling bodies, avoiding collision and friction between the rolling bodies during movement, and ensuring the movement precision of the bearing. The wave cage of the ball bearing is one type of cage, which is one of the most commonly used cages at present.
The wave-shaped retainer is provided with a front side and a back side, wherein the front side of the retainer consists of a plane and the inner surface of a pocket for wrapping the steel ball, and the back side is the outer surface of the pocket for wrapping the steel ball. The front and back sides of the retainer need to be distinguished and sorted before packaging and assembly. In the prior art, the front and the back of the retainer are distinguished by manual mode, and the front and the back of the retainer are finished by manual operation and counted and packaged. However, the manual separation method has the problems of low separation efficiency, high labor intensity and the like due to the huge production capacity of the retainer.
The invention patent application with publication number of CN 103964170A discloses a 'silent bearing retainer front and back automatic collator', which is formed by modifying the existing bearing assembly machine and comprises a frame, a lower die mechanism, a discharging mechanism, a counting discharging mechanism, a feeding mechanism, a material taking mechanism and a rotating mechanism, wherein the discharging mechanism and the material taking mechanism are fixed on an upper die fixing plate, and the upper die fixing plate is connected on the frame; the lower die mechanism, the counting and blanking mechanism, the feeding mechanism and the rotating mechanism are respectively connected to the bottom plate, and the bottom plate is connected to the frame. The method for separating and arranging by using the automatic arranging machine comprises the steps of manually stringing the wave-shaped retainers which are not separated from the front side and the back side on a feeding rod, and sequentially feeding the single-piece retainers to a lower die; during feeding, the height of the retainer facing upwards (at the moment, the outer surface of the pocket of the retainer is contacted with the steel balls of the lower die) is obviously higher than that of the retainer facing upwards (at the moment, the inner surface of the pocket of the retainer is contacted with the steel balls of the lower die), so that the retainer facing upwards is taken away by the higher taking mechanism by arranging the taking mechanism for taking the retainer facing upwards to be greater than that for taking the retainer facing downwards, and the retainer facing upwards rotates to the next station to be taken away by the lower taking mechanism, thereby realizing the front-back separation of the retainer. The above-mentioned finisher has obviously the following drawbacks: 1. before separation, the retainer which is not separated from the front side and the back side is required to be connected with the feeding rod in series, so that the labor intensity is still high, and the separation efficiency of the retainer is greatly restricted; 2. the finisher is composed of at least six complicated mechanisms, and cylinders are arranged in a plurality of mechanisms to complete linear reciprocating motion, so that the finisher is extremely complicated in structure and high in equipment cost.
Wu Hongen, niu Jie et al discloses a device for identifying and separating the front and back of a ball bearing wave cage by using a centrifugal device and an electromagnetic field, wherein the device is provided with a rotating chassis, two outlets are arranged on the side walls around the chassis, and an electromagnetic coil is arranged above the outlet through which the wave cage passes. The designer of the device ingeniously uses the characteristic that the attractive force between the wave-shaped retainer with the front surface upwards and the electromagnetic coil is larger than the attractive force between the wave-shaped retainer with the back surface upwards and the electromagnetic coil, and sets the exciting current of the electromagnetic coil, so that the wave-shaped retainer with the outlet of the electromagnetic coil arranged above the path is thrown out directly if the back surface upwards, and is thrown out until the next outlet if the front surface upwards, thereby realizing the separation of the front surface and the back surface. Although the paper demonstrates the feasibility of using the magnitude of magnetic attraction to identify the front and back of the cage using finite element analysis, the following disadvantages remain: 1. because the positions of the wave-shaped retainer falling onto the chassis are random, the wave-shaped retainer can move to an outlet above which the electromagnetic coil is not arranged under the action of centrifugal force, and the wave-shaped retainer can be thrown out no matter the front surface or the back surface of the retainer is contacted with the chassis; 2. because mutual collision and pushing action cannot be avoided between the retainers, the retainers under the electromagnetic coil are easy to throw out no matter the front side of the retainer is upward or the back side of the retainer is upward; 3. because the retainer is wavy, when a plurality of retainers are hooked together, the retainer can be clamped at the outlet or can be thrown out of the outlet with the electromagnetic coil arranged above.
Disclosure of Invention
The invention aims to solve the technical problem of providing the ball bearing wave-shaped retainer homodromous material-mixing split charging equipment which has the advantages of simple structure, good separation effect and high efficiency.
The technical scheme for solving the technical problems is as follows:
the ball bearing wave-shaped retainer equidirectional material-mixing split charging equipment comprises a frame, a feeding mechanism, a material taking mechanism, a sorting mechanism and a material-mixing rod which are sequentially arranged,
the feeding mechanism consists of a feeding disc and a disc-shaped cam mechanism with a closed geometric shape for driving the feeding disc; the feeding disc is rectangular and sequentially provided with a material containing area and a separating area along the length direction; n wedge-shaped bulges are transversely arranged in the separation area, and half wedge-shaped bulges are respectively arranged on two sides of the separation area; the wedge-shaped bulge and the half-wedge-shaped bulge uniformly divide the separation area into N+1 wedge-shaped grooves; the tip of the wedge-shaped groove points to the material taking mechanism, the width of the wedge-shaped groove is slightly larger than the outer diameter of the wave-shaped retainer, and the end part of the wedge-shaped groove is a material taking notch; the feeding tray is positioned above the frame, and the middle part of the feeding tray is transversely hinged on the frame; the geometrically-closed disc cam mechanism comprises a disc cam and a roller push rod, wherein the disc cam is supported on a rack at one end of the feeding disc, the rotation center line of the disc cam is parallel to the rotation center line of a hinge point of the feeding disc, and the non-roller end of the roller push rod is fixed on the bottom surface of the feeding disc above the disc cam; n is a natural number which is not equal to zero;
the material taking mechanism comprises a crank, cylindrical pins and a group of flat material taking rods with the same number as that of the wedge-shaped grooves, wherein the crank is hinged to the frame, the cylindrical pins are fixed at the tail ends of the crank and are parallel to the arrangement direction of the wedge-shaped grooves, one ends of the material taking rods are sleeved on the connecting pins in a one-to-one correspondence manner with the wedge-shaped grooves, and the other ends of the material taking rods naturally droop; the middle part of the side, facing the tip end of the wedge-shaped groove, of the material taking rod is provided with a material taking hook, and the width of the material taking hook is matched with the width of the wave-shaped retainer;
the sorting mechanism comprises a slide, an electromagnet and a cylindrical cam mechanism with a closed geometric shape; the slide comprises a stripper plate, a sorting plate and a blanking plate from top to bottom in sequence; the upper surface of the slide is provided with sliding grooves with the same number and interval as the material taking rods and with the width slightly larger than the outer diameter of the wave-shaped retainer from top to bottom; the section of the chute positioned on the stripping plate is S-shaped, and the two sections positioned on the sorting plate and the blanking plate are respectively in a straight shape; the S-shaped chute on the stripper plate is formed by connecting an upper straight line section, a downward inclined transition section and a lower straight line section from top to bottom; the stripper plate is provided with a stripper crack in the middle of the bottom surface of the upper straight line section of the S-shaped chute along the length direction, and the width of the stripper crack is slightly larger than the thickness of the material taking rod and extends to the lower side wall beyond the downward inclined transition section; the length of the stripping crack passing through the side wall of the downward inclined transition section is slightly larger than the sum of the width of the material taking rod and the width of the material taking hook; a sorting chute is arranged beside each chute on the blanking plate in parallel, and the width of the sorting chute is equal to that of the chute;
the sorting plate is made of non-magnetic materials, and the electromagnet is arranged at the middle part of each chute on the back surface of the sorting plate; when the electromagnet is powered on, if the wave-shaped retainer sliding downwards along the sliding groove is front-down, the friction force between the wave-shaped retainer and the sorting plate is larger than the sliding force of the wave-shaped retainer, and if the back surface is downward, the friction force between the wave-shaped retainer and the sorting plate is smaller than the sliding force of the sorting plate;
the cylindrical cam mechanism with the closed geometric shape consists of a cylindrical cam and another roller push rod, wherein the cylindrical cam is arranged on a frame below the sorting plate in parallel, and the non-roller end of the other roller push rod is fixed on the lower surface of the sorting plate above the cylindrical cam to form a linear sliding mechanism;
a travel switch is arranged on the frame, and the lower surface of the sorting plate extends downwards to form a bulge for controlling the travel switch;
the material-stringing rod is a cylindrical rod with the diameter slightly smaller than the inner diameter of the wave-shaped retainer, and a conical guide head is arranged on the upper head of the cylindrical rod; the tail ends of each chute and each sorting chute on the blanking plate are provided with a semicircular notch and a U-shaped baffle, the semicircular notch and the U-shaped baffle enclose a blanking port with a diameter slightly larger than the outer diameter of the wave-shaped retainer, a material-stringing rod is vertically arranged under each blanking port, and the guide head of each material-stringing rod faces upwards;
the rotation center line of the crank is positioned above the middle of the feeding disc and the slide; a synchronous belt pulley transmission mechanism is respectively arranged between the disc cam and the crank and the cylindrical cam, and the disc cam, the crank and the cylindrical cam synchronously rotate in the same direction; in a circle of synchronous and same-direction rotation of the disc-shaped cam, the crank and the cylindrical cam, when the disc-shaped cam mechanism drives one end of the feeding disc provided with the material taking notch to move to a horizontal state from bottom to top, the material taking hook hooks the wave-shaped retainer from bottom to top through the material taking notch; when the crank continuously rotates to one side of the slide with the material taking rod, the material taking hook passes through the material taking crack from top to bottom, and the wave-shaped retainer falls off from the material taking hook and slides down along the sliding groove under the blocking of the material taking plate in the slide; when the crank continuously carries the material taking rod to pass through the position right below the rotation center line of the crank, the cylindrical cam mechanism drives the sorting plate to move to the position that the sliding chute on the sorting plate is aligned with the sorting sliding chute on the blanking plate, at the moment, the travel switch is disconnected, and the electromagnet is powered off; and then, the cylindrical cam mechanism drives the sorting plate to return, and the electromagnet is electrified.
In order to improve the stability of the material taking rod, the other end of the material taking rod naturally sags in the scheme is provided with a heavy hammer.
Because the material taking rod is used for placing the wave-shaped retainer on the slide, the wave-shaped retainer falls above the material taking rod at the moment when the wave-shaped retainer is separated from the material taking hook, if the initial speed of the wave-shaped retainer which starts to slide downwards at the moment is slightly slow, the wave-shaped retainer cannot completely leave the material stripping crack when the material taking rod starts to return, and the material taking rod possibly touches the edge of the wave-shaped retainer to collide the edge of the wave-shaped retainer out of the sliding groove. In order to avoid this possible occurrence, a further development of the invention provides that the downwardly sloping transition of the S-shaped runner widens up to the upper edge of the stripper plate.
In the above scheme, the front surface of the ball bearing wave cage refers to the surface of one side of the inner surface of the pocket hole of the ball bearing wave cage, and the back surface of the ball bearing wave cage refers to the surface of one side of the back surface of the pocket hole of the ball bearing wave cage.
The invention has the following beneficial effects:
1. according to the homodromous material mixing and split charging equipment, firstly, the stacked and entangled wave-shaped retainers are disassembled into the chain shape by utilizing the combined action of the up-down vibration of the feeding disc in the feeding mechanism and the wedge-shaped protrusions in the feeding disc in the vibration process, then the single sheets are further split into the single sheets by utilizing the picking and hooking actions of the material taking hooks on the material taking rods in the material taking mechanism, and finally the single sheets are placed in the sliding grooves of the slide one by one, so that the split feeding process of the whole single sheet retainer is fully automatic, the labor is saved, and the production efficiency is improved;
2. in the process that the wave-shaped retainer slides down along the slide, the wave-shaped retainer with the front face downwards is kept motionless on the sorting plate by utilizing the difference of attractive force between the wave-shaped retainer and the electromagnet when the front face of the wave-shaped retainer faces the electromagnet and the back face of the wave-shaped retainer faces the electromagnet, the wave-shaped retainer with the back face downwards slides down along the slide groove, and then the wave-shaped retainer with the front face downwards moves into the sorting slide groove to slide down, so that the sorting accuracy is remarkably improved;
3. the whole split charging process is fully automatic and finished in one go.
Drawings
Fig. 1 to 5 are schematic structural views of a specific embodiment of the ball bearing wave cage homodromous material mixing and sub-packaging device according to the present invention, wherein fig. 1 is a front view, fig. 2 is a left side view (partially cut-away), fig. 3 is a right side view (partially cut-away), fig. 4 is a top view, and fig. 5 is an enlarged view of a portion i in fig. 3.
Fig. 6 is a schematic perspective view of the embodiment shown in fig. 1 to 5.
Fig. 7 to 9 are schematic structural views of the sorting mechanism in the embodiment shown in fig. 1 to 5, wherein fig. 7 is a front view, fig. 8 is a left side view, and fig. 9 is a right side view.
FIG. 10 is a schematic perspective view of the sorting mechanism shown in FIGS. 7-9; fig. 11 is a schematic perspective view of another view of the sorting mechanism shown in fig. 7-9.
FIG. 12 is a schematic perspective view of the transmission system of the embodiment of FIGS. 1-5; fig. 13 is a schematic perspective view of another view of the transmission system according to the embodiment shown in fig. 1-5.
Fig. 14 is a schematic view showing the structure of a disc cam in the feeding mechanism in the embodiment shown in fig. 1 to 5, in which an arrow indicates the rotation direction of the disc cam.
FIG. 15 is a graph of the movement relationship of the disc cam, cylindrical pin and cylindrical cam in the embodiment of FIGS. 1-5; in the figure, a curve A is a theoretical profile of a disc cam, a curve B is a motion track schematic diagram of a cylindrical pin, and a curve C is a theoretical profile of a cylindrical cam.
Fig. 16 to 17 are schematic views of the working state of the extracting mechanism in the embodiment shown in fig. 1 to 5, where fig. 16 is a schematic view of the working state during extracting, and fig. 17 is a schematic view of the working state during stripping.
Fig. 18 is a schematic structural view of another embodiment of the ball bearing wave cage homodromous material mixing and sub-packaging device according to the present invention.
FIG. 19 is a graph showing the relationship of movement of the disc cam, cylindrical pin and cylindrical cam in the embodiment of FIG. 18; in the figure, a curve A' is a theoretical profile of a disc cam, a curve B is a motion track schematic diagram of a cylindrical pin, and a curve C is a theoretical profile of a cylindrical cam.
Detailed Description
Example 1
Referring to fig. 1 to 4 in combination with fig. 6, the ball bearing wave-shaped retainer equidirectional material-mixing and sub-packaging equipment of the invention comprises a frame 1, a feeding mechanism, a material taking mechanism, a sorting mechanism, a material-mixing rod 15 and a traditional system which are sequentially arranged on the frame 1. The feeding mechanism consists of a rectangular feeding disc 2 and a geometrically closed disc-shaped cam mechanism driving the feeding disc 2 to swing up and down; the feeding disc 2 is sequentially provided with a material containing area and a separating area along the length direction; the separation area is transversely provided with four wedge-shaped bulges 2-4, and two sides of the separation area are respectively provided with half-wedge-shaped bulges 2-5; the wedge-shaped bulge 2-4 and the half-wedge-shaped bulge 2-5 uniformly divide the separation area into five wedge-shaped grooves 2-2; the tip of the wedge-shaped groove 2-2 points to the material taking mechanism, the width of the wedge-shaped groove is slightly larger than the outer diameter of the wave-shaped retainer, and the end part of the wedge-shaped groove is provided with a material taking notch 2-3; the other side edges of the feeding tray 2 except for one end where the tip end of the wedge-shaped groove 2-2 is positioned are respectively provided with a protective wall 2-1 extending vertically upwards; coaxial pin shafts are respectively arranged in the middle parts of two sides of the feeding disc 2, which are perpendicular to the length direction of the wedge-shaped groove 2-2, and the axes of the pin shafts are parallel to the arrangement direction of the wedge-shaped groove 2-2 and are fixedly hinged on the frame 1 through the bearing seat 3, so that the feeding disc 2 can rotate around the pin shafts; the disc-shaped cam mechanism is arranged below the feeding disc 2 and close to one end of the material taking mechanism, and comprises a disc-shaped cam 5 and a roller push rod 6, wherein the disc-shaped cam 5 is supported on the frame 1 by a first rotating shaft parallel to the pin shaft, a closed first curve groove 5-1 is formed in the end face of one side of the disc-shaped cam, a roller 6-1 of the roller push rod 6 stretches into the first curve groove 5-1, and a non-roller end of the roller push rod 6 is fixed on the bottom surface of the feeding disc 2 above the disc-shaped cam 5.
Referring to fig. 1 to 6, the material taking mechanism comprises a disc crank 7, a cylindrical pin 8 and five flat strip-shaped material taking rods 9, wherein the disc crank 7 is coaxially and fixedly supported on the frame 1 by a second rotating shaft parallel to the first rotating shaft, and the cylindrical pin 8 is vertically fixed at a position, close to the edge, of the end face of one side of the disc crank 7; one end of each of the five material taking rods 9 is sleeved on the cylindrical pin 8 in a one-to-one correspondence with the middle part of the material taking notch 2-3, and the other end is provided with a heavy hammer 9-2 so that the other end naturally sags; the middle part of one side of the material taking rod 9 opposite to the material taking notch 2-3 is provided with a material taking hook 9-1 for hooking the wave-shaped retainer of the material taking notch 2-3, and the width of the material taking hook 9-1 is matched with the width of the wave-shaped retainer.
Referring to fig. 7-11 in combination with fig. 6, the sorting mechanism comprises a slide, an electromagnet 22 and a cylindrical cam mechanism with a closed geometric shape, wherein the slide is obliquely arranged on the frame 1, and sequentially comprises a stripping plate 11, a sorting plate 12 and a blanking plate 13 from top to bottom, the upper surface of the slide is provided with sliding grooves with the same number and interval as those of the material taking rods 9 and with the width slightly larger than the outer diameter of the wave-shaped retainer, the sliding grooves extend from the upper edge of the slide to the lower edge of the slide, and the parts of the sliding grooves on the stripping plate 11, the sorting plate 12 and the blanking plate 13 are respectively a stripping section 11-1, a sorting section 12-2 and a blanking section 13-1, wherein the stripping section 11-1 is in an S shape (the shape is the basic scheme of the invention, the shape of the broken line and the solid line combined expression in fig. 8 is seen), and the sorting section 12-2 and the blanking section 13-1 are in a straight shape; the stripping section 11-1 is formed by connecting an upper straight line section 11-2, a downward inclined transition section 11-3 and a lower straight line section 11-4 from top to bottom.
Referring to fig. 1, 4, 6, 8 or 10, in this example, the downward sloping transition section 11-3 of the S-shaped chute widens upward to the upper edge of the stripper plate 11, that is, corresponds to only the lower sidewall of the downward sloping transition section 11-3 being remained, while the right sidewall of the lower straight line section 11-4 extends to the upper edge of the stripper plate 11.
Referring to fig. 7 to 11 in combination with fig. 6, a stripping slit 11-5 is provided in the middle of the bottom surface of the upper straight line segment 11-2 along the length direction, and the width of the stripping slit 11-5 is slightly larger than the thickness of the material taking rod 9 and extends to the lower side wall beyond the downward inclined transition segment 11-3; the length of the stripping cracks 11-5 passing through the side wall of the downward inclined transition section 11-3 is slightly larger than the sum of the width of the material taking rod 9 and the width of the material taking hook 9-1; a sorting chute 13-2 is arranged in parallel beside the blanking section 13-1 of each chute on the blanking plate 13, and the width of the sorting chute 13-2 is equal to that of the blanking section 13-1.
Referring to fig. 7 to 11, the sorting board 12 is made of a non-magnetic material (such as plastic), and the lower surface of the sorting board is provided with an electromagnet 22 at the middle of each chute sorting section 12-2; the magnetic force of the electromagnet 22 satisfies the following requirements: under the action of the magnetic force of the electromagnet 22, when the front surface of the wave-shaped retainer in the sorting section is contacted with the bottom surface of the sorting section 12-2, the friction force born by the wave-shaped retainer is larger than the sliding force (component force of gravity in the direction) born by the wave-shaped retainer which is parallel to the bottom surface of the sorting section 12-2, at the moment, the wave-shaped retainer is sucked in the sorting section 12-2 and cannot slide down, and when the back surface (namely the outer surface of the pocket) of the wave-shaped retainer in the sorting section 12-2 is contacted with the bottom surface of the sorting section 12-2, the friction force born by the wave-shaped retainer is smaller than the sliding force born by the wave-shaped retainer which is parallel to the bottom surface of the sorting section 12-2, at the moment, the wave-shaped retainer can slide down from the sorting section 12-2; the sorting board 12 is supported on a frame by a linear sliding mechanism, the linear sliding mechanism consists of a linear guide rail 24 parallel to the second rotating shaft and a sliding block 25 arranged on the linear guide rail 24, a travel switch 23 for controlling the electromagnet 22 to be powered on and powered off is arranged on the frame at one end of the linear guide rail 24, and a bulge for controlling the travel switch 23 extends downwards from the lower surface of the sorting board 12; the cylindrical cam mechanism with the closed geometric shape consists of a cylindrical cam 16 and another roller push rod 12-1, wherein the cylindrical cam 16 is arranged below the sorting plate 12 and is fixed on the frame 1 by a third rotating shaft parallel to the second rotating shaft, and the outer peripheral surface of the cylindrical cam 16 is provided with a closed second curve groove 16-1; the non-roller end of the other roller push rod 12-1 is fixed on the lower surface of the sorting plate 12 above the cylindrical cam 16, and the roller end extends into the second curve groove 16-1.
Referring to fig. 10, the string material rod 15 is a cylindrical rod with a diameter slightly smaller than the inner diameter of the wave-shaped retainer, a conical guiding head is arranged at the upper head of the cylindrical rod, semicircular notches and U-shaped baffles 14 are arranged at the tail ends of the blanking section 13-1 and the sorting chute 13-2 of each chute on the blanking plate 13, the semicircular notches and the U-shaped baffles 14 enclose a blanking port with a diameter slightly larger than the outer diameter of the wave-shaped retainer, one string material rod 15 is vertically arranged under each blanking port, and the guiding head of each string material rod 15 faces upwards.
Referring to fig. 12 and 13 in combination with fig. 6, the transmission system includes the first rotating shaft 17, the second rotating shaft 19, the third rotating shaft 18 and the speed regulating motor 4, wherein the second rotating shaft 19 is located above the middle of the feeding tray 2 and the slide, the output shaft of the speed regulating motor 4 is connected with the first rotating shaft 17, the first rotating shaft 17 and the third rotating shaft 18 and the second rotating shaft 19 and the third rotating shaft 18 are respectively connected through synchronous pulley transmission mechanisms with a transmission ratio of 1:1, the synchronous pulley transmission mechanisms are composed of two pulleys 21 and synchronous belts 20 wound on the two pulleys 21, and the outer sides of the synchronous pulley transmission mechanisms are provided with protective covers 10.
Referring to fig. 14 and 15, the curve depicted by the center of the roller push rod 6-1 when moving in the first curve groove 5-1 is the theoretical profile of the disc cam 5 (i.e. the center line of the first curve groove 5-1), and the theoretical profile is composed of a first process transition section a for driving the roller push rod 6-1 to rise, a material taking section b concentric with the disc cam 5, a second process transition section c for driving the roller push rod 6-1 to rise, a buffer section d concentric with the disc cam 5, and a first return transition section e for driving the roller push rod 6-1 to fall; after the theoretical profile of the disc-shaped cam 5 is unfolded, a curve A is drawn by taking a rotation angle as an abscissa and taking the distance between a point on the theoretical profile of the position of the corresponding roller push rod 6-1 and the center of the disc-shaped cam 5 as an ordinate; likewise, after the theoretical profile of the cylindrical cam 16 is developed, a curve C is drawn by taking the rotation angle as the abscissa and the translation distance of the corresponding other roller push rod 12-1 along the axial direction of the cylindrical cam 16 as the ordinate, where the curve C is composed of a near rest section h parallel to the end surface of the cylindrical cam 16, a third process transition section i, a far rest section j parallel to the end surface of the cylindrical cam 16, and a second return transition section k; and drawing a curve B by taking the rotation angle as an abscissa and the vertical distance between the cylindrical pin 8 on the disc crank 7 and the center of the disc crank 7 as an ordinate, wherein the curve B is a positive-brown curve formed by an ascending section f and a descending section g.
Referring to fig. 15 in combination with fig. 16 to 17, under the drive of the transmission system, the disc cam 5, the disc crank 7 and the cylindrical cam 16 synchronously rotate in the same direction, when the roller push rod 6-1 is located at the midpoint of the material taking section b, the cylindrical pin 8 is located at the midpoint of the ascending section f (i.e. the point corresponding to 150 ° on the abscissa in fig. 15), at this time, the end of the feeding gap of the feeding tray 2 moves from bottom to top to a horizontal state, and the material taking hook 9-1 provided on the material taking rod 9 hooks the wave-shaped retainer 26 of the material taking gap 2-3 from bottom to top through the material taking gap 2-3 (see fig. 16), so as to finish the material taking action; when the cylindrical pin 8 is located at the midpoint of the descending section g, the other roller push rod 12-1 is located at the near-rest section h (i.e. the point corresponding to 330 ° on the abscissa in fig. 15), and at this time, the material taking rod 9 enters the material taking slit 11-5 and passes over the downward inclined transition section 11-3 of the material taking section 11-1, and under the blocking of the material taking plate 11, the wave-shaped retainer 26 falls off from the material taking hook 9-1 and slides down along the chute (see fig. 17), so as to complete the material taking action; when the other roller push rod 12-1 is positioned in the near-rest section h, the lower head of the sorting section 12-2 is in butt joint with the upper head of the blanking section 13-1, and at the moment, the electromagnet 22 is powered, and only the wave-shaped retainer with the back surface in contact with the bottom surface of the sorting section 12-2 is allowed to slide down in the sorting section 12-2; from the cylindrical pin 8 entering the ascending section, the other roller push rod 12-1 moves to the far rest section j along the third process transition section i, at this time, the sorting section 12-2 of the chute on the sorting plate 12 is aligned with the sorting chute 13-2 on the blanking plate 13, the normally closed travel switch 23 is opened, the electromagnet 22 is powered off, the wave-shaped retainer with the front surface sucked in the sorting section 12-2 in contact with the bottom surface of the sorting section 12-2 slides down, and then the other roller push rod 12-1 drives the sorting plate 12 to return through the second return transition section k, the travel switch 23 is closed, and the electromagnet 22 is powered on to wait for the next cycle.
Example 2
Referring to fig. 18, this example differs from example 1 in that: the disc-shaped cam mechanism is arranged at one end, far away from the material taking mechanism, below the feeding disc 2 and comprises another disc-shaped cam 27 and a roller push rod 6, wherein a closed third curve groove 27-1 is formed in the end face of one side of the other disc-shaped cam 27, the roller 6-1 of the roller push rod 6 stretches into the third curve groove 27-1, and the non-roller end of the roller push rod 6 is fixed on the bottom surface of the feeding disc 2 above the disc-shaped cam.
Referring to fig. 19, the curve depicted by the center of the roller push rod 6-1 when moving in the third curve groove 27-1 is the theoretical profile of the other disc cam 27 (i.e. the center line of the third curve groove 27-1), which is composed of a third return transition section a ' for driving the roller push rod 6-1 downward (the feeding tray 2 is provided with a first rising end of the material taking opening 2-3), a fourth return transition section c ' for driving the roller push rod 6-1 downward and a second buffer section d ' for driving the roller push rod 6-1 upward (the feeding tray 2 is provided with a first falling end of the material taking opening 2-3); after the theoretical profile of the other disc cam 27 is unfolded, a curve a 'is drawn by taking the rotation angle as the abscissa and the distance between the point on the theoretical profile of the corresponding roller push rod 6-1 and the center of the other disc cam 27 as the ordinate, and the curve a' is drawn in the same coordinate system with the curve B and the curve C in example 1.
Referring to fig. 19, under the drive of the transmission system, the other disc cam 27, the disc crank 7 and the cylindrical cam 16 synchronously rotate in the same direction, when the roller push rod 6-1 is located at the midpoint of the other material taking section b', the cylindrical pin 8 is located at the midpoint of the ascending section f (i.e. the point corresponding to 150 ° on the abscissa in fig. 15), at this time, the end of the feeding gap of the feeding tray 2 moves from bottom to top to a horizontal state, and the material taking hook 9-1 provided on the material taking rod 9 hooks the wave-shaped retainer 26 of the material taking gap 2-3 through the material taking gap 2-3 from bottom to top; when the cylindrical pin 8 is located at the midpoint of the descending section g, the other roller push rod 12-1 is located at the near-rest section h (i.e. the point corresponding to 330 ° on the abscissa in fig. 19), and at this time, the material taking rod 9 enters the material taking slit 11-5 and passes over the downward inclined transition section 11-3 of the material taking section 11-1, and the wave-shaped retainer 26 falls off from the material taking hook 9-1 under the blocking of the material taking plate 11 and slides down along the chute; when the other roller push rod 12-1 is positioned in the near-rest section h, the lower head of the sorting section 12-2 is in butt joint with the upper head of the blanking section 13-1, and at the moment, the electromagnet 22 is powered, and only the wave-shaped retainer with the back surface in contact with the bottom surface of the sorting section 12-2 is allowed to slide down in the sorting section 12-2; from the cylindrical pin 8 entering the ascending section, the other roller push rod 12-1 moves to the far rest section j along the third process transition section i, at this time, the sorting section 12-2 of the chute on the sorting plate 12 is aligned with the sorting chute 13-2 on the blanking plate 13, the normally closed travel switch 23 is opened, the electromagnet 22 is powered off, the wave-shaped retainer with the front surface sucked in the sorting section 12-2 in contact with the bottom surface of the sorting section 12-2 slides down, and then the other roller push rod 12-1 drives the sorting plate 12 to return through the second return transition section k, the travel switch 23 is closed, and the electromagnet 22 is powered on to wait for the next cycle.
Claims (3)
1. The ball bearing wave-shaped retainer equidirectional material-mixing split charging equipment comprises a frame, a feeding mechanism, a material taking mechanism, a sorting mechanism and a material-mixing rod which are sequentially arranged,
the feeding mechanism consists of a feeding disc and a disc-shaped cam mechanism with a closed geometric shape for driving the feeding disc; the feeding disc is rectangular and sequentially provided with a material containing area and a separating area along the length direction; n wedge-shaped bulges are transversely arranged in the separation area, and half wedge-shaped bulges are respectively arranged on two sides of the separation area; the wedge-shaped bulge and the half-wedge-shaped bulge uniformly divide the separation area into N+1 wedge-shaped grooves; the tip of the wedge-shaped groove points to the material taking mechanism, the width of the wedge-shaped groove is slightly larger than the outer diameter of the wave-shaped retainer, and the end part of the wedge-shaped groove is a material taking notch; the feeding tray is positioned above the frame, and the middle part of the feeding tray is transversely hinged on the frame; the geometrically-closed disc cam mechanism comprises a disc cam and a roller push rod, wherein the disc cam is supported on a rack at one end of the feeding disc, the rotation center line of the disc cam is parallel to the rotation center line of a hinge point of the feeding disc, and the non-roller end of the roller push rod is fixed on the bottom surface of the feeding disc above the disc cam; n is a natural number which is not equal to zero;
the material taking mechanism comprises a crank, cylindrical pins and a group of flat material taking rods, the number of the flat material taking rods is equal to that of the wedge-shaped grooves, the crank is hinged to the frame, the cylindrical pins are fixed at the tail ends of the crank and are parallel to the arrangement direction of the wedge-shaped grooves, one ends of the material taking rods are sleeved on the connecting pins in a one-to-one correspondence manner with the wedge-shaped grooves, and the other ends of the material taking rods naturally droop; the middle part of the side, facing the tip end of the wedge-shaped groove, of the material taking rod is provided with a material taking hook, and the width of the material taking hook is matched with the width of the wave-shaped retainer;
the sorting mechanism comprises a slide, an electromagnet and a cylindrical cam mechanism with a closed geometric shape; the slide comprises a stripper plate, a sorting plate and a blanking plate from top to bottom in sequence; the upper surface of the slide is provided with sliding grooves with the same number and interval as the material taking rods and with the width slightly larger than the outer diameter of the wave-shaped retainer from top to bottom; the section of the chute positioned on the stripping plate is S-shaped, and the two sections positioned on the sorting plate and the blanking plate are respectively in a straight shape; the S-shaped chute on the stripper plate is formed by connecting an upper straight line section, a downward inclined transition section and a lower straight line section from top to bottom; the stripper plate is provided with a stripper crack in the middle of the bottom surface of the upper straight line section of the S-shaped chute along the length direction, and the width of the stripper crack is slightly larger than the thickness of the material taking rod and extends to the lower side wall beyond the downward inclined transition section; the length of the stripping crack passing through the side wall of the downward inclined transition section is slightly larger than the sum of the width of the material taking rod and the width of the material taking hook; a sorting chute is arranged beside each chute on the blanking plate in parallel, and the width of the sorting chute is equal to that of the chute;
the sorting plate is made of non-magnetic materials, and the electromagnet is arranged at the middle part of each chute on the back surface of the sorting plate; when the electromagnet is powered on, if the wave-shaped retainer sliding downwards along the sliding groove is front-down, the friction force between the wave-shaped retainer and the sorting plate is larger than the sliding force of the wave-shaped retainer, and if the back surface is downward, the friction force between the wave-shaped retainer and the sorting plate is smaller than the sliding force of the sorting plate;
the cylindrical cam mechanism with the closed geometric shape consists of a cylindrical cam and another roller push rod, wherein the cylindrical cam is arranged on a frame below the sorting plate in parallel, and the non-roller end of the other roller push rod is fixed on the lower surface of the sorting plate above the cylindrical cam to form a linear sliding mechanism;
a travel switch is arranged on the frame, and the lower surface of the sorting plate extends downwards to form a bulge for controlling the travel switch;
the material-stringing rod is a cylindrical rod with the diameter slightly smaller than the inner diameter of the wave-shaped retainer, and a conical guide head is arranged on the upper head of the cylindrical rod; the tail ends of each chute and each sorting chute on the blanking plate are provided with a semicircular notch and a U-shaped baffle, the semicircular notch and the U-shaped baffle enclose a blanking port with a diameter slightly larger than the outer diameter of the wave-shaped retainer, a material-stringing rod is vertically arranged under each blanking port, and the guide head of each material-stringing rod faces upwards;
the rotation center line of the crank is positioned above the middle of the feeding disc and the slide; a synchronous belt pulley transmission mechanism is respectively arranged between the disc cam and the crank and the cylindrical cam, and the disc cam, the crank and the cylindrical cam synchronously rotate in the same direction; in a circle of synchronous and same-direction rotation of the disc-shaped cam, the crank and the cylindrical cam, when the disc-shaped cam mechanism drives one end of the feeding disc provided with the material taking notch to move to a horizontal state from bottom to top, the material taking hook hooks the wave-shaped retainer from bottom to top through the material taking notch; when the crank continuously rotates to one side of the slide with the material taking rod, the material taking hook passes through the material taking crack from top to bottom, and the wave-shaped retainer falls off from the material taking hook and slides down along the sliding groove under the blocking of the material taking plate in the slide; when the crank continuously carries the material taking rod to pass through the position right below the rotation center line of the crank, the cylindrical cam mechanism drives the sorting plate to move to the position that the sliding chute on the sorting plate is aligned with the sorting sliding chute on the blanking plate, at the moment, the travel switch is disconnected, and the electromagnet is powered off; and then, the cylindrical cam mechanism drives the sorting plate to return, and the electromagnet is electrified.
2. The ball bearing wave cage homodromous string material split charging equipment according to claim 1, wherein the other end of the material taking rod naturally sags is provided with a heavy hammer.
3. The ball bearing wave cage homodromous material mixing and sub-packaging device according to claim 1 or 2, characterized in that the downward inclined transition section of the S-shaped chute widens upwards to the upper edge of the stripper plate.
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| CN201710942161.6A CN107585537B (en) | 2017-10-11 | 2017-10-11 | Ball bearing wave-shaped retainer homodromous material-mixing split charging equipment |
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| CN201710942161.6A CN107585537B (en) | 2017-10-11 | 2017-10-11 | Ball bearing wave-shaped retainer homodromous material-mixing split charging equipment |
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| CN108655691A (en) * | 2018-06-04 | 2018-10-16 | 苏州贝意迪机电科技有限公司 | A kind of docking mechanism of cylinder ball assembly machine |
| CN110668149B (en) * | 2019-10-10 | 2021-08-27 | 唐山哈船科技有限公司 | Adjustable firm transportation frame convenient to bearing packing transportation |
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| CN103962309A (en) * | 2014-04-24 | 2014-08-06 | 安徽华之杰机械有限公司 | Front surface and back surface separation mechanism of silent bearing retainer |
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| CN207482816U (en) * | 2017-10-11 | 2018-06-12 | 合肥工业大学 | A kind of wave-shaped holder of ball bearings flushing dispensing apparatus in the same direction |
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| JP5670666B2 (en) * | 2010-07-14 | 2015-02-18 | 日本トムソン株式会社 | Finite linear motion guide unit with cage |
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| CN103962309A (en) * | 2014-04-24 | 2014-08-06 | 安徽华之杰机械有限公司 | Front surface and back surface separation mechanism of silent bearing retainer |
| CN106523536A (en) * | 2016-12-29 | 2017-03-22 | 宁波致泰自动化装备有限公司 | Full-automatic assembling machine for tapered roller bearing inner components |
| CN207482816U (en) * | 2017-10-11 | 2018-06-12 | 合肥工业大学 | A kind of wave-shaped holder of ball bearings flushing dispensing apparatus in the same direction |
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