Screw counting equipment

Abstract

The invention relates to screw counting equipment which comprises a discharging structure, a conveying structure, a counting device and a collecting structure. The discharging structure comprises a discharging bin, the discharging bin comprises a feeding bin and a discharging pipe, a driving mechanism is fixed to the upper portion of the feeding bin and provided with a rotating shaft, a cam is fixed to the rotating shaft, a stirring rod is arranged on the cam, and when the rotating shaft rotates, the stirring rod is driven by the cam to rotate around the rotating shaft; the conveying structure comprises a conveying belt, a plurality of screw placing grooves are formed in the conveying belt, and the screw placing grooves are located below an outlet of the discharging pipe; the counting device adopts photoelectric counters, and the photoelectric counters are arranged on the two sides of the material conveying structure; according to the screw counting equipment, the number of large-batch screws can be conveniently and rapidly counted, the automation degree is high, the efficiency is high, and the precision is high.

Description

Technical Field

[0001] The invention relates to a counting device, in particular to a screw counting device. Background Art

[0002] A large number of screws are needed in the production process. When the number of screws in stock needs to be counted, manual counting is often used, which takes a long time and has low counting accuracy. Summary of the invention

[0003] The purpose of the invention is to provide a screw counting device with high counting efficiency and high counting accuracy.

[0004] The technical solution for achieving the purpose of the present invention is as follows:

[0005] A screw counting device comprises a material feeding structure, a material conveying structure, a counting device and a material receiving structure;

[0006] The material discharge structure includes a material discharge bin, which includes a feed bin and a material discharge pipe connected to the feed bin, the diameter of the inner wall of the feed bin gradually decreases from top to bottom, the inner diameter of the material discharge pipe is smaller than the minimum diameter of the feed bin, the inner diameter of the material discharge pipe is larger than the diameter of the screw and smaller than twice the diameter of the screw, a driving mechanism is fixed above the feed bin, the driving mechanism has a rotating shaft, a cam is fixed on the rotating shaft, a stirring rod is arranged on the cam, when the rotating shaft rotates, the stirring rod is driven by the cam to rotate around the rotating shaft, and the lower end of the stirring rod extends to the connection between the feed bin and the material discharge pipe;

[0007] The feeding structure comprises a conveyor belt, on which a plurality of screw placement grooves are arranged, the screw placement grooves are located below the outlet of the feed pipe, the depth of the screw placement grooves is less than the length of the screws, the minimum distance between the surface of the conveyor belt and the outlet of the feed pipe is less than the length of the screws, and the minimum distance between the bottom of the screw placement grooves and the outlet of the feed pipe is greater than the length of the screws;

[0008] The counting device adopts a photoelectric counter, and the photoelectric counter is arranged on both sides of the feeding structure;

[0009] The material receiving structure is located at one end in front of the material conveying structure in the conveying direction.

[0010] After adopting the above structure, after a large number of screws are poured into the feeding bin, the rotating shaft of the driving mechanism drives the stirring rod to rotate, so that the screws can smoothly enter the feeding tube from the feeding bin, and the screws are placed in the feeding bin to block the feeding bin. The screws enter the feeding tube. Since the inner diameter of the feeding tube is less than twice the diameter of the screws, the screws can only slide down one by one in the feeding tube. When the screws extend from the lower end outlet of the feeding tube, the lower end of the screws contacts the conveying section. At this time, the upper end of the screws is still in the feeding tube. When the screw placement groove moves to the bottom of the outlet of the feeding tube, the screws fall into the screw placement groove, and the upper end of the screws leaves the feeding tube and extends to the outside of the screw placement groove, so that the screws move with the conveyor belt. When passing the counting device, the counting device detects and counts the screws exposed from the screw placement groove. After the counting is completed, the screws move to the end of the conveyor belt with the conveyor belt and fall into the collection box. The screw counting device of the present invention can conveniently and quickly count the number of large batches of screws, with high automation, high efficiency and high accuracy.

[0011] Preferably, in order to fix the driving mechanism, a frame is fixed on the feeding bin, and the driving mechanism is fixed on the frame.

[0012] Preferably, the cam is provided with a through hole, the stirring rod passes through the through hole, a limiting block is fixed on the stirring rod, and the limiting block contacts the upper surface of the cam; the feed bin is provided with a protrusion, and the protrusion is provided with a limiting hole, and the lower end of the stirring rod passes through the limiting hole and extends to the bottom of the protrusion, so that the stirring rod can better stir the screw and prevent the screw from being blocked.

[0013] Preferably, a plurality of support rods are provided on the stirring rod, and the support rods are located between the cam and the protrusion, so as to improve the effect of preventing the stirring screw from being blocked.

[0014] Preferably, the stirring rod is provided with a curved portion, and the curved portion is located between the cam and the protrusion, thereby improving the effect of preventing the stirring screw from being blocked.

[0015] Preferably, a plurality of wear-resistant sheets are provided on the conveyor belt, and the wear-resistant sheets are located between the screw placement grooves, so as to prevent the screws from scratching the conveyor belt.

[0016] Preferably, both ends of the wear-resistant sheet extend to the outer edge of the screw placement groove, so that the conveyor belt is more fully protected.

[0017] Preferably, the wear-resistant sheet is made of a metal sheet, so that the metal sheet can fit well on the surface of the conveyor belt and deform along with the conveyor belt.

[0018] Preferably, the material receiving structure includes a material receiving box, and a buffer inclined plate is provided at the upper end of the material receiving box. After the screw falls from the conveyor belt, it enters the material receiving box along the buffer inclined plate, thereby reducing the impact force received by the screw when entering the material receiving box.

[0019] Preferably, a buffer pad is provided inside the material receiving box to further reduce the impact force on the screw when entering the material receiving box. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0021] Figure 1 It is a structural schematic diagram of the present invention.

[0022] Figure 2 It is a schematic diagram of the blanking structure of the present invention.

[0023] Figure 3 This is a schematic diagram of an embodiment of the stirring rod of the present invention having a bent portion.

[0024] Figure 4 It is a schematic diagram of the conveyor belt structure of the present invention. DETAILED DESCRIPTION

[0025] like Figure 1 and Figure 2 As shown, a screw counting device of the present invention comprises a feeding structure, a feeding structure, a counting device and a receiving box, wherein the feeding structure comprises a feeding bin 1, the feeding bin comprises a feeding bin 2 and a feeding pipe 3 connected with the feeding bin, the diameter of the inner wall of the feeding bin gradually decreases from top to bottom, the inner diameter of the feeding pipe is smaller than the minimum diameter of the feeding bin, the inner diameter of the feeding pipe is larger than the diameter of the screw 4 and smaller than twice the diameter of the screw 4, a frame 5 is fixed on the feeding bin, a motor 6 is fixed on the frame, the motor has a rotating shaft 8 connected by a reduction gear box 7, a cam 9 is fixed on the rotating shaft, the cam is provided with a through hole 10, a stirring rod 11 passing through the through hole is provided on the cam, a limiting block 12 is fixed on the stirring rod, and the limiting block contacts the upper surface of the cam; the feeding bin is provided with a convex block 13, the convex block is provided with a limiting hole 14, the lower end of the stirring rod passes through the limiting hole and extends to the bottom of the convex block, when the rotating shaft rotates, the stirring rod is driven by the cam to rotate around the rotating shaft, and the lower end of the stirring rod extends to the connection between the feeding bin and the feeding pipe;

[0026] In some embodiments, Figure 2 As shown, a plurality of supporting rods 15 are arranged on the stirring rod, and the supporting rods are located between the cam and the protrusion.

[0027] In other embodiments, Figure 3 As shown, the stirring rod is provided with a curved portion 16, which is located between the cam and the lug.

[0028] like Figure 1 As shown, the material receiving box 17 is located at one end in front of the conveying direction of the feeding structure, a buffer inclined plate 18 is provided at the upper end of the material receiving box 17, and a buffer pad 19 is provided inside the material receiving box.

[0029] like Figure 1 and Figure 4 As shown, the feeding structure includes a conveyor belt 20, on which a plurality of screw placement grooves 21 are arranged, the screw placement grooves are located below the outlet of the feed pipe, the depth of the screw placement grooves is less than the length of the screw, the minimum distance between the surface of the conveyor belt and the outlet of the feed pipe is less than the length of the screw, the minimum distance between the bottom of the screw placement grooves and the outlet of the feed pipe is greater than the length of the screw, a plurality of wear-resistant sheets 23 are arranged on the conveyor belt, the wear-resistant sheets are located between the screw placement grooves, both ends of the wear-resistant sheets extend to the outer edges of the screw placement grooves, and the wear-resistant sheets are made of metal sheets; the counting device adopts a photoelectric counter 22, and the photoelectric counter is arranged on both sides of the feeding structure.

[0030] After adopting the above structure, after a large number of screws are poured into the feeding bin, the rotating shaft of the motor drives the stirring rod to rotate, so that the screws can smoothly enter the feeding tube from the feeding bin, and the screws are placed in the feeding bin to block the feeding bin. The screws enter the feeding tube. Since the inner diameter of the feeding tube is less than twice the diameter of the screws, the screws can only slide down one by one in the feeding tube. When the screws extend from the lower end outlet of the feeding tube, the lower end of the screws contacts the conveying section. At this time, the upper end of the screws is still in the feeding tube. When the screw placement groove moves to the bottom of the outlet of the feeding tube, the screws fall into the screw placement groove, and the upper end of the screws leaves the feeding tube and extends to the outside of the screw placement groove, so that the screws move with the conveyor belt. When passing the counting device, the counting device detects and counts the screws exposed from the screw placement groove. After the counting is completed, the screws move to the end of the conveyor belt with the conveyor belt and fall into the collection box. The screw counting device of the present invention can conveniently and quickly count the number of large batches of screws, with high automation, high efficiency and high accuracy.

[0031] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A screw counting device, characterized in that: It includes a material unloading structure, a material conveying structure, a counting device and a material receiving structure; The material discharge structure includes a material discharge bin, which includes a feed bin and a material discharge pipe connected to the feed bin, the diameter of the inner wall of the feed bin gradually decreases from top to bottom, the inner diameter of the material discharge pipe is smaller than the minimum diameter of the feed bin, the inner diameter of the material discharge pipe is larger than the diameter of the screw and smaller than twice the diameter of the screw, a driving mechanism is fixed above the feed bin, the driving mechanism has a rotating shaft, a cam is fixed on the rotating shaft, a stirring rod is arranged on the cam, when the rotating shaft rotates, the stirring rod is driven by the cam to rotate around the rotating shaft, and the lower end of the stirring rod extends to the connection between the feed bin and the material discharge pipe; The feeding structure comprises a conveyor belt, on which a plurality of screw placement grooves are arranged, the screw placement grooves are located below the outlet of the feed pipe, the depth of the screw placement grooves is less than the length of the screws, the minimum distance between the surface of the conveyor belt and the outlet of the feed pipe is less than the length of the screws, and the minimum distance between the bottom of the screw placement grooves and the outlet of the feed pipe is greater than the length of the screws; The counting device adopts a photoelectric counter, and the photoelectric counter is arranged on both sides of the feeding structure; The material receiving structure is located at one end in front of the material conveying structure in the conveying direction.

2. A screw counting device according to claim 1, characterized in that: A frame is fixed on the feeding bin, and the driving mechanism is fixed on the frame.

3. A screw counting device according to claim 1 or 2, characterized in that: The cam is provided with a through hole, the stirring rod passes through the through hole, a limiting block is fixed on the stirring rod, and the limiting block contacts the upper surface of the cam; the feed bin is provided with a protrusion, the protrusion is provided with a limiting hole, and the lower end of the stirring rod passes through the limiting hole and extends to the bottom of the protrusion.

4. A screw counting device according to claim 3, characterized in that: A plurality of supporting rods are arranged on the stirring rod, and the supporting rods are located between the cam and the protrusion.

5. A screw counting device according to claim 3, characterized in that: The stirring rod is provided with a bent portion, and the bent portion is located between the cam and the protrusion.

6. A screw counting device according to claim 1, characterized in that: A plurality of wear-resistant sheets are arranged on the conveyor belt, and the wear-resistant sheets are located between the screw placement grooves.

7. A screw counting device according to claim 6, characterized in that: Both ends of the wear-resistant sheet extend to the outer edge of the screw placement groove.

8. A screw counting device according to claim 6 or 7, characterized in that: The wear-resistant sheet is made of metal sheet.

9. A screw counting device according to claim 1, characterized in that: The material receiving structure comprises a material receiving box, and a buffer inclined plate is arranged at the upper end of the material receiving box.

10. A screw counting device according to claim 9, characterized in that: A buffer pad is arranged inside the material receiving box.

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