Screw feeder

Abstract

The utility model belongs to the field of industrial automation and discloses a screw feeder. The screw feeder comprises a bottom plate, a vacuum seat, a machine core, a transmission mechanism, a positioning detector, a material existence detection mechanism and a screw disc, the transmission mechanism is fixedly installed on the upper surface of the bottom plate, the machine core is fixedly installed on the transmission mechanism, the vacuum seat is installed in the machine core, the material existence detection mechanism comprises a signal transmitter and a signal receiver, and the signal transmitter is connected with the positioning detector. The two sides of the machine core are fixedly connected with a signal transmitter and a signal receiver respectively, the transmission mechanism is provided with a positioning detector, and the screw disc is arranged on the transmission mechanism. According to the screw feeder, the positioning block is arranged on the left side of the screw disc, the precision of the positioning block is guaranteed through a precision machining technology, the positioning block is detected through the positioning detector for positioning, accurate positioning of screw disc indexing is achieved, and the structure can guarantee that the high precision of screw disc positioning is achieved, and the positioning precision is not affected by abrasion of a transmission mechanism or other factors.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical devices, in particular to a screw feeder. Background Art

[0002] Existing feeders use vibrating tracks to sort and transport tiny screws. The tiny screws here are preferably screws with a thread diameter of 0.6-2.0mm. The existing screw feeder is composed of three parts: feeding, vibrating sorting, and dividing. The structure is complex, and the dividing mechanism is linked by the motor gear and the main shaft gear of the dividing disk. Since the meshing gap between the gears is difficult to eliminate, the repeat positioning accuracy of the dividing disk is poor. Utility Model Content

[0003] The purpose of the utility model is to provide a screw feeder, which effectively solves the problem that the existing screw feeder is composed of three parts: feeding, vibrating arranging and dividing, and has a complex structure. The dividing mechanism is linked by a motor gear and a main shaft gear of a dividing plate. Since the meshing gap between the gears is difficult to eliminate, the repeated positioning accuracy of the dividing plate is poor.

[0004] To achieve the above objectives, the present invention is implemented through the following technical solutions: a screw feeder, comprising a base plate, a vacuum seat, a movement, a transmission mechanism, a positioning detector, a material detection mechanism and a screw disk, the upper surface of the base plate is fixedly mounted with a transmission mechanism, the movement is fixedly mounted on the transmission mechanism, the vacuum seat is mounted in the movement, the material detection mechanism comprises a signal transmitter and a signal receiver, the two sides of the movement are respectively fixedly connected with a signal transmitter and a signal receiver, the transmission mechanism is provided with a positioning detector, the screw disk is arranged on the transmission mechanism, the upper surface of the base plate is fixedly mounted with a shell, and a main control board is provided on the right side of the shell;

[0005] A transmission shaft is movably connected to the middle of the movement, and the transmission shaft passes through the movement and is movably connected to a vacuum seat, and the vacuum seat is fixedly connected to the inner wall of the movement. The vacuum seat is movably connected to a screw disk, and the screw disk is fixedly connected to the transmission shaft, and the end of the transmission shaft is fixedly connected to a hand nut, and the hand nut is fixedly connected to the screw disk. A display bracket is provided on the right side of the movement, and a positioning detector is provided on the left side of the movement.

[0006] Through the above technical solution, the signal transmitter and signal receiver set by the detection mechanism can detect and judge whether there is a screw above the screw disk. At the same time, the vacuum seat is connected to the external vacuum generator. At the same time, the vacuum seat and the transmission shaft are set to a sealed sliding connection, so that the transmission shaft can rotate normally after the vacuum seat is fixed. The fixed connection between the transmission shaft and the screw disk realizes that the transmission shaft drives the screw disk to rotate on the one hand, and on the other hand, the screw disk and the vacuum seat are set to a sealed sliding connection to achieve sealing between the screw disk and the vacuum seat. The vacuum seat generates negative pressure through the outer vacuum generator, and further adsorbs the screw above the screw disk through the negative pressure, which is convenient to use.

[0007] Preferably, the transmission mechanism includes a motor, a transmission rod, a turbine seat and a worm. The motor is fixedly mounted on the upper surface of the base plate, the output end of the motor is fixedly connected to the transmission rod, the upper surface of the base plate is fixedly connected to the turbine seat, the inner side of the turbine seat is movably connected to the worm, and the end of the transmission shaft extends to the inner side of the turbine seat and is connected to the worm through a worm gear.

[0008] Through the above technical solution, this application sets up a motor through a transmission mechanism and cooperates with a transmission rod, a turbine seat and a worm so that the transmission rod is driven to rotate after the motor is started, and further the worm gear is used in conjunction with the worm to make the worm run, and further the worm gear set on the outside of the transmission shaft is used in conjunction with the worm, so that the screw disk is driven to rotate after the transmission shaft rotates.

[0009] Preferably, the vacuum seat further includes a vacuum groove, and the vacuum groove is provided on the right side of the vacuum seat, and the vacuum groove is configured as an arc-shaped groove.

[0010] Through the above technical solution, the vacuum groove provided in the vacuum seat of the present application is connected to the vacuum generator, so that negative pressure is generated inside the vacuum groove after the vacuum generator is started, and further used in conjunction with the screw disk, so that the screw disk can adsorb the screws through the negative pressure generated by the vacuum groove.

[0011] Preferably, the screw disk also includes a connecting hole, a positioning block, a mounting hole, a stirring groove and a material collection hole. A connecting hole is provided on the left side of the screw disk, and the connecting hole is adapted to the vacuum groove. Several positioning blocks are fixedly connected to the left side of the screw disk, the screw disk is provided with a mounting hole, several stirring grooves are provided on the right side of the screw disk, and several material collection holes are provided on the outside of the screw disk.

[0012] Through the above technical solution, the connecting hole of the present application is connected to the vacuum tank, so that the screw disk can generate negative pressure after rotation to further adsorb the screw on the inside of the stirring tank. The positioning block and stirring tank arranged above the screw disk are arranged in an equidistant ring.

[0013] Preferably, the positioning detector is adapted to the positioning block.

[0014] Through the above technical solution, the positioning detector of the present application is fixedly connected to the top of the turbine seat through a fixed block. At the same time, the right side of the positioning detector extends to the inside of the movement and is adapted to the positioning block. When the screw disk rotates and drives the positioning block to rotate, when the positioning block passes through the positioning detector, the positioning detector can be identified, thereby realizing the effect of precise positioning of the screw disk position by cooperating with the positioning block to achieve the technical solution of this invention.

[0015] Preferably, the movement is inclined, and the screw disk is adapted to the movement, and the central axis of the screw disk and the transmission shaft are arranged to be collinear.

[0016] Through the above technical solution, the screw disk of the present application is collinear with the central axis of the transmission shaft, so that the screw disk can rotate stably after the transmission shaft rotates, avoiding the shaking of the screw disk.

[0017] By adopting the above technical solution, the beneficial effects of the utility model are:

[0018] 1. The screw feeder has a positioning block set on the left side of the screw disk. The positioning block adopts precision processing technology to ensure accuracy. The positioning block is detected by the positioning detector for positioning, so as to achieve precise positioning of the screw disk indexing. This structure can ensure the high precision of the screw disk positioning and the positioning accuracy is not affected by the wear of the transmission mechanism or other factors.

[0019] 2. This screw feeder simplifies the overall structure of the machine, eliminating the two sets of mechanisms for loading and vibrating the alignment, thus simplifying the product structure and ensuring the consistency of the production process and the stability of the feeding. The transmission mechanism is driven by the motor, and the transmission mechanism is connected to the screw disk. The left side of the screw disk is pressed and sealed with a vacuum seat with vacuum. When the screw disk rotates, within a fixed angle, the screw disk is connected to the vacuum seat, and the screw at this position is sucked into the screw disk. The screw disk is then rotated by the motor transmission mechanism to deliver the screw to the material removal position. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional diagram of the utility model;

[0021] Figure 2 It is a schematic diagram of the local structure of the utility model;

[0022] Figure 3 For the utility model explosion Figure 1 ;

[0023] Figure 4 For the utility model explosion Figure 2 ;

[0024] Figure 5This is the structural diagram of the vacuum seat of the utility model;

[0025] Figure 6 This is the structural diagram of the screw disk of this utility model.

[0026] In the figure: 1. Base plate; 2. Outer shell; 21. Main control board; 3. Transmission mechanism; 31. Motor; 32. Transmission rod; 33. Turbine seat; 34. Worm; 4. Material detection mechanism; 41. Signal transmitter; 42. Signal receiver; 5. Transmission shaft; 6. Vacuum seat; 61. Vacuum tank; 7. Screw disk; 71. Connecting hole; 72. Positioning block; 73. Mounting hole; 74. Stirring tank; 75. Material removal hole; 8. Hand-tightening nut; 9. Display bracket; 10. Positioning detector; 11. Movement. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0028] See also Figure 1-6 The utility model provides a technical solution: a screw feeder, including a base plate 1, a vacuum seat 6, a movement 11, a transmission mechanism 3, a positioning detector 10, a material detection mechanism 4 and a screw disk 7. The transmission mechanism 3 is fixedly installed on the upper surface of the base plate 1, the movement 11 is fixedly installed on the transmission mechanism 3, the vacuum seat 6 is installed in the movement 11, the material detection mechanism 4 includes a signal transmitter 41 and a signal receiver 42, the signal transmitter 41 and the signal receiver 42 are fixedly connected on both sides of the movement 11, the transmission mechanism 3 is provided with a positioning detector 10, the screw disk 7 is provided on the transmission mechanism 3, the upper surface of the base plate 1 is fixedly installed with a shell 2, and the left side of the shell 2 is provided with a main control board 21;

[0029] The middle part of the movement 11 is movably connected with a transmission shaft 5, which passes through the movement 11 and is movably connected with a vacuum seat 6, and the vacuum seat 6 is fixedly connected to the inner wall of the movement 11. The vacuum seat 6 is movably connected with a screw disk 7, and the screw disk 7 is fixedly connected to the transmission shaft 5. The end of the transmission shaft 5 is movably connected with a hand nut 8, and the hand nut 8 is movably connected to the screw disk 7. A display bracket 9 is provided on the right side of the movement 11, and a positioning detector 10 is provided on the left side of the movement 11. The signal transmitter 41 and the signal receiver 42 provided by the detection mechanism can detect whether there is a screw above the screw disk 7. The wire is detected and judged, and the vacuum seat 6 is connected to the external vacuum generator. At the same time, the vacuum seat 6 and the transmission shaft 5 are set to be sealed and slidingly connected, so that the transmission shaft 5 can rotate normally after the vacuum seat 6 is fixed. The transmission shaft 5 and the screw disk 7 are fixedly connected. On the one hand, the transmission shaft 5 drives the screw disk 7 to rotate. On the other hand, the screw disk 7 and the vacuum seat 6 are set to be sealed and slidingly connected to achieve the sealing between the screw disk 7 and the vacuum seat 6. The vacuum seat 6 generates negative pressure through the outer vacuum generator, and further absorbs the screw on the top of the screw disk 7 through the negative pressure, which is convenient for use.

[0030] Reference Figure 2 、 3 As shown, the transmission mechanism 3 includes a motor 31, a transmission rod 32, a turbine seat 33 and a worm 34. The motor 31 is fixedly installed on the upper surface of the base plate 1, and the output end of the motor 31 is fixedly connected to the transmission rod 32. The upper surface of the base plate 1 is fixedly connected to the turbine seat 33. The inner side of the turbine seat 33 is movably connected with the worm 34. The end of the transmission shaft 5 extends to the inner side of the turbine seat 33 and is connected to the worm 34 through a worm gear. The motor 31 is set through the transmission mechanism 3 and cooperates with the transmission rod 32, the turbine seat 33 and the worm 34 so that the motor 31 drives the transmission rod 32 to rotate after starting, and further uses the worm gear to cooperate with the worm 34 to make the worm 34 run. Further, the worm gear set on the outside of the transmission shaft 5 cooperates with the worm 34 to realize that the screw disk 7 is rotated after the transmission shaft 5 rotates.

[0031] Reference Figure 4 、 5 As shown, the vacuum seat 6 also includes a vacuum groove 61. The vacuum groove 61 is provided on the right side of the vacuum seat 6, and the vacuum groove 61 is provided as an arc-shaped groove. The vacuum groove 61 provided on the vacuum seat 6 is connected to the vacuum generator, so that after the vacuum generator is started, negative pressure is generated inside the vacuum groove 61, and further used in conjunction with the screw disk 7, so that the screw disk 7 can adsorb the screws through the negative pressure generated by the vacuum groove 61.

[0032] Reference Figure 4 、 6As shown, the screw disk 7 also includes a connecting hole 71, a positioning block 72, a mounting hole 73, a stirring groove 74 and a feeding hole 75. A connecting hole 71 is provided on the left side of the screw disk 7, and the connecting hole 71 is adapted to the vacuum groove 61. A plurality of positioning blocks 72 are fixedly connected to the left side of the screw disk 7, a mounting hole 73 is provided on the screw disk 7, a plurality of stirring grooves 74 are provided on the right side of the screw disk 7, and a plurality of feeding holes 75 are provided on the outside of the screw disk 7. The connecting hole 71 is connected to the vacuum groove 61, so that the screw disk 7 can generate negative pressure after rotation to further suck the screw into the feeding hole 75. The positioning block 72 and the stirring groove 74 arranged above the screw disk 7 are arranged in an equidistant ring.

[0033] Reference Figure 2 、 3 As shown in Figures 4 and 5, the positioning detector 10 is adapted to the positioning block 72. The positioning detector 10 is fixedly connected to the top of the turbine seat 33 through a fixing block. At the same time, the right side of the positioning detector 10 extends to the inside of the movement 11 and is adapted to the positioning block 72. When the screw disk 7 rotates and drives the positioning block 72 to rotate, when the positioning block 72 passes through the positioning detector 10, the positioning detector 10 is identified, thereby realizing the effect of accurately positioning the position of the screw disk 7 by cooperating with the positioning block 72.

[0034] Reference Figure 2 、 3 As shown in , 4 , the movement 11 is tilted, and the screw disk 7 is adapted to the movement 11. The screw disk 7 and the central axis of the transmission shaft 5 are set to be collinear. The screw disk 7 and the central axis of the transmission shaft 5 are collinear so that the screw disk 7 can rotate stably after the transmission shaft 5 rotates, thereby avoiding the screw disk 7 from shaking.

[0035] When the screw feeder is working, a large number of screws or other corresponding feed materials are poured into the movement 11, and then slide to the bottom of the movement 11 under the action of its own gravity. The motor 31 drives the worm gear to rotate through the transmission rod 32, and then drives the worm 34 to rotate through the worm gear. Subsequently, the worm 34 drives the transmission shaft 5 to rotate through the worm gear and drives the screw disk 7 to rotate. During the rotation of the screw disk 7, the stirring groove 74 at the bottom overlaps with the vacuum groove 61 of the vacuum seat 6. The communicating hole 71 in the overlapping portion communicates with the vacuum groove 61 of the vacuum seat 6. The vacuum groove 61 in the communicating portion then draws the workpiece into the feeding hole 75 through negative pressure. At this point, the feeding hole 75 is in the feeding position. During this process, the turbine seat provided by the display bracket 9 controls the motor 31 to stop intermittently after rotation. Subsequently, the feeding hole 75 of the screw disk 7 stops between the signal transmitter 41 and the signal receiver 42. At this time, the signal transmitter 41 and the signal receiver 42 detect the workpiece in the feeding hole 75. At this point, the feeding hole 75 is in the feeding position. If a workpiece is present, a material presence signal is sent to the controller. After the workpiece is removed from the feeding hole 75, the controller controls the motor 31 to operate, and the operation is as described above. If there is no workpiece, the controller controls the transmission mechanism 3 to continue operating, and the operation is also as described above.

[0036] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0037] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A screw feeder, comprising a base plate, a vacuum seat, a movement, a transmission mechanism, a positioning detector, a material detection mechanism and a screw plate, characterized in that: A transmission mechanism is fixedly mounted on the upper surface of the base plate, the movement is fixedly mounted on the transmission mechanism, the vacuum seat is mounted in the movement, the material detection mechanism includes a signal transmitter and a signal receiver, the signal transmitter and the signal receiver are fixedly connected on both sides of the movement, the transmission mechanism is provided with a positioning detector, the screw disk is provided on the transmission mechanism, a shell is fixedly mounted on the upper surface of the base plate, and a main control board is provided on the right side of the shell; A transmission shaft is movably connected to the middle of the movement, and the transmission shaft passes through the movement and is movably connected to a vacuum seat, and the vacuum seat is fixedly connected to the inner wall of the movement. The vacuum seat is movably connected to a screw disk, and the screw disk is fixedly connected to the transmission shaft, and the end of the transmission shaft is fixedly connected to a hand nut, and the hand nut is fixedly connected to the screw disk. A display bracket is provided on the right side of the movement, and a positioning detector is provided on the left side of the movement.

2. The screw feeder according to claim 1, characterized in that: The transmission mechanism includes a motor, a transmission rod, a turbine seat and a worm. The motor is fixedly mounted on the upper surface of the base plate, the output end of the motor is fixedly connected to the transmission rod, the upper surface of the base plate is fixedly connected to the turbine seat, the inner side of the turbine seat is movably connected to the worm, and the end of the transmission shaft extends to the inner side of the turbine seat and is connected to the worm through a worm gear.

3. The screw feeder according to claim 2, characterized in that: The vacuum seat further includes a vacuum groove. The right side of the vacuum seat is provided with a vacuum groove, and the vacuum groove is configured as an arc-shaped groove.

4. The screw feeder according to claim 3, characterized in that: The screw disk also includes a connecting hole, a positioning block, a mounting hole, a stirring groove and a material taking hole. A connecting hole is provided on the left side of the screw disk, and the connecting hole is adapted to the vacuum groove. Several positioning blocks are fixedly connected to the left side of the screw disk, the screw disk is provided with a mounting hole, several stirring grooves are provided on the right side of the screw disk, and several material taking holes are provided on the outside of the screw disk.

5. The screw feeder according to claim 4, characterized in that: The positioning detector is adapted to the positioning block.

6. The screw feeder according to claim 5, characterized in that: The movement is tilted, and the screw disk is adapted to the movement, and the central axis of the screw disk and the transmission shaft are arranged to be collinear.

Images