A jam-proof screw sorting and packaging machine

Abstract

This utility model relates to the field of material sorting equipment technology, and in particular to a screw sorting and packaging machine with anti-jamming features. It includes a base, a vibrator, a mounting base, first guide rods, and springs. The vibrator is mounted on the top of the base, and mounting bases are fixedly connected to the four corners of the top output end face of the vibrator. First guide rods are slidably connected inside the mounting bases. A material tray is connected to the top of the two first guide rods on the front and rear sides, and the two trays cooperate to form a material trough. Springs are provided between the material trays and the mounting bases. This utility model uses a stepped feeder to sequentially convey screws into the material trays, and guides them smoothly to roll down via the inclined surface of the guide table. Utilizing the large mass of the screw nut end, gravity causes the screw to automatically rotate to the correct orientation with the screw end facing forward in the positioning protrusion area, thereby improving orientation accuracy and reducing manual intervention.

Description

Technical Field

[0001] This utility model relates to the field of material sorting equipment technology, and in particular to a screw sorting and packaging machine that prevents material jamming. Background Technology

[0002] Screws, as standard fasteners widely used in industrial production, have extensive applications in automated assembly, electronic equipment manufacturing, and automotive parts assembly. To achieve efficient and precise subsequent packaging and assembly operations, bulk screws need to be automatically sorted, oriented, and sorted to ensure continuous output in a uniform manner. Currently, vibratory feeding and sorting devices, as core equipment for achieving this function, are widely used in the front-end material feeding stages of various production lines. Among them, vibratory feeders or linear vibratory feeders driven by linear vibrators often serve as the main power source, working in conjunction with guiding structures to complete the orientation adjustment and transmission of materials.

[0003] However, existing screw sorting devices generally suffer from problems such as jamming, disordered arrangement, and poor adaptability during actual operation. Due to the asymmetrical structure of screws and uneven mass distribution between the nut and screw end, incomplete flipping, lateral jamming, or stacking can easily occur during vibration conveying, leading to channel blockage and affecting the continuity of material supply. Although some devices have guide protrusions or limiting structures, they lack effective interception and correction mechanisms for abnormal postures, resulting in limited anti-jamming capabilities. In addition, the discharge port of most devices is inconvenient to adjust, making it difficult to quickly adapt to screws of different lengths or specifications, leading to long changeover times and reduced production efficiency.

[0004] Therefore, it is necessary to design a screw sorting and packaging machine that prevents jamming, in order to solve the above-mentioned technical problems. Utility Model Content

[0005] In order to overcome the shortcomings of existing screw sorting devices that are prone to jamming and disordered material arrangement during operation, this utility model provides a screw sorting and packaging machine that prevents jamming.

[0006] The technical solution is as follows: A screw sorting and packaging machine with anti-jamming features, comprising a base, a vertical vibrator, a mounting base, a first guide rod, a spring, a material tray, a limiting plate, a positioning protrusion, a fixing rod, and a separating column. A vertical vibrator is mounted on the top of the base. Mounting bases are fixedly connected to the four corners of the top output end face of the vertical vibrator. First guide rods are slidably connected inside the mounting bases. A material tray is connected to the top of the two first guide rods on the front and rear sides. The two material trays cooperate to form a material trough. A spring is provided between the material tray and the mounting base, and the spring is sleeved on the outer periphery of the first guide rod. The two trays are symmetrically arranged front and back. Two sets of inclined and parallel limiting plates are fixed between the front and back sides of the inner walls of the two trays. The outer walls of the two trays have inlets in the area between the two limiting plates. Several positioning protrusions are provided on the top sides of the two trays that are close to each other. The top of the base is fixedly connected to the left and right sides of the vertical vibrator. The two fixing rods are centrally symmetrical. Multiple material distribution columns are fixedly connected to the lower part of the side of the two fixing rods that are close to each other. The material distribution columns are located directly above the gap between the positioning protrusions of the corresponding trays.

[0007] As a further preferred option, it also includes a stepped feeder and a guide table. The stepped feeder is provided on the front and rear sides of the base. The discharge end of the stepped feeder is aligned with the feed port on the outer wall of the material tray to transport the screw into the material tray. A guide table is provided at the top of the material tray near the feed port. The side of the two guide tables that are close to each other is an inclined surface.

[0008] As a further preferred option, it also includes a material feeding guide plate, which is fixedly connected to the right side of the base. The material feeding guide plate is inclined on the left and lower on the right, and its left side is located below the right side of the material tray.

[0009] As a further preferred embodiment, it also includes fixed blocks and sliding plates. Fixed blocks are fixedly connected between the left and right sides of the two trays, and two sliding plates are slidably connected between the two fixed blocks. The sliding plates slide in cooperation with the bottom of the trays.

[0010] As a further preferred embodiment, an outlet groove is provided on the lower right side of the two trays, and an adapter groove that matches the outlet groove is provided on the lower right side of the two sliding plates.

[0011] As a further preferred embodiment, it also includes a bidirectional screw, a knob, and a second guide rod. The bidirectional screw is threaded between the left ends of the two sliding plates, and a knob is fixedly connected to the front end of the bidirectional screw. The second guide rod is slidably connected between the right ends of the two sliding plates.

[0012] The beneficial effects are as follows: 1. This utility model uses a stepped feeder to sequentially transport screws into the material tray, and guides them to roll smoothly through the inclined surface of the guide table. Utilizing the large mass of the nut end, the screw is automatically rotated in the positioning protrusion area under the action of gravity to the correct posture with the screw end facing forward, thereby improving the orientation accuracy and reducing manual intervention.

[0013] 2. This utility model uses a limiting plate to laterally constrain the screws in motion, preventing them from shifting or entering the channel side by side. At the same time, a material distribution column is set above the gap of the positioning protrusion to block screws with abnormal posture or lateral jamming. Combined with the vibration disturbance generated by the straight vibrator, it causes the jammed material to come out, thereby achieving the effect of preventing blockage and ensuring continuous material supply.

[0014] 3. This utility model uses a sliding plate that slides into the bottom of the material tray to adjust the degree of overlap between the right end adapter groove and the material tray outlet groove, thereby controlling the opening and closing of the discharge port. The sliding plate is driven to move synchronously by a bidirectional screw, and the second guide rod ensures smooth movement, thus achieving the effect of adapting to the discharge needs of screws of different specifications and improving the versatility of the equipment. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model.

[0016] Figure 2 This is a structural diagram of the base, vibrator, and material tray of this utility model.

[0017] Figure 3 for Figure 2 The diagram shows the structure of components such as the stepped feeder, the feeding guide plate, and the fixing block.

[0018] Figure 4 This is a structural schematic diagram of the mounting base, first guide rod, and spring of this utility model.

[0019] Figure 5 This is a structural diagram of the limiting plate, positioning protrusion, and guide platform of this utility model.

[0020] Figure 6 This is a structural diagram of the sliding plate, bidirectional screw, and knob components of this utility model.

[0021] Wherein: 1-base, 2-vibrator, 3-mounting seat, 4-first guide rod, 5-spring, 6-material tray, 601-outlet groove, 7-limiting plate, 8-positioning protrusion, 9-fixing rod, 10-material distribution column, 11-step feeder, 12-guide table, 13-discharge guide plate, 14-fixing block, 15-sliding plate, 151-adapter groove, 16-bidirectional screw, 17-knob, 18-second guide rod. Detailed Implementation

[0022] Example: A screw sorting and packaging machine to prevent jamming, such as Figures 1-5 As shown, the device includes a base 1, a vertical vibrator 2, a mounting base 3, a first guide rod 4, a spring 5, a material tray 6, a limiting plate 7, a positioning protrusion 8, a fixing rod 9, and a material distribution column 10. The vertical vibrator 2 is mounted on the top of the base 1. The four corners of the top output end face of the vertical vibrator 2 are respectively connected to the mounting base 3 by bolts. The first guide rod 4 is slidably connected inside the mounting base 3. The tops of the two first guide rods 4 on the front and rear sides are connected to a material tray 6. The two material trays 6 cooperate to form a material trough. A spring 5 is provided between the material tray 6 and the mounting base 3. The spring 5 is sleeved on the outer periphery of the first guide rod 4. The two material trays 6 are symmetrically arranged front and rear. The two material trays 6 are fixedly provided with two sets of inclined and parallel limiting plates 7 between the front and rear sides of the inner wall. The outer wall of the two material trays 6 is provided with a feeding port in the area between the two limiting plates 7. Several positioning protrusions 8 are provided on the inner top side of the two material trays 6 that are close to each other. The top of the base 1 is connected to the left and right sides of the vertical vibrator 2 by bolts. The two fixing rods 9 are centrally symmetrical. Multiple material distribution columns 10 are connected to the lower part of the side of the two fixing rods 9 that are close to each other by bolts. The material distribution columns 10 are located directly above the gap between the positioning protrusions 8 of the corresponding material trays 6.

[0023] like Figures 1-6 As shown, it also includes a stepped feeder 11, a guide table 12, a discharge guide plate 13, a fixing block 14, a sliding plate 15, a bidirectional screw 16, a knob 17, and a second guide rod 18. The stepped feeder 11 is provided on the front and rear sides of the base 1. The discharge end of the stepped feeder 11 is aligned with the feed inlet on the outer wall of the material tray 6 to feed the screws into the material tray 6. A guide table 12 is provided at the top of the material tray 6 near the feed inlet. The side of the two guide tables 12 that are close to each other is an inclined surface. The discharge guide plate 13 is connected to the right side of the base 1 by bolts. The discharge guide plate 13 is inclined on the left and lower on the right, and its left side is... Below the right side of the material tray 6, the left and right sides of the two material trays 6 are respectively connected by bolts to fixing blocks 14. Two sliding plates 15 are slidably connected between the two fixing blocks 14. The sliding plates 15 are slidably engaged with the bottom of the material tray 6. An outlet groove 601 is opened on the lower right side of the two material trays 6. An adapter groove 151 that matches the outlet groove 601 is opened on the lower right side of the two sliding plates 15. A bidirectional screw 16 is threadedly connected between the left ends of the two sliding plates 15. A knob 17 is bolted to the front end of the bidirectional screw 16. A second guide rod 18 is slidably connected between the right ends of the two sliding plates 15.

[0024] When using this device, first place the screws to be sorted into the stepped feeders 11 set on the front and rear sides of the base 1. After starting the stepped feeders 11, they will convey the screws to the right in sequence through step-by-step vibration and guide them to be stably output from the discharge end. After being conveyed by the stepped feeders 11, the screws enter the internal space of the material tray 6 through the feed port opened on the outer wall of the material tray 6.

[0025] The screw entering the material tray 6 first contacts the guide platform 12 located at the top of the material tray 6 near the feed inlet. The opposite side of the guide platform 12 is an inclined surface, forming an inlet ramp, which guides the screw to roll smoothly into the middle area of ​​the material tray 6. At this time, the screw is in a dynamic rolling state. Since its structure is a nut on one end and a screw on the other end, the nut part has a large mass. Under the action of gravity, when it rolls into the inclined area, the center of gravity shifts, causing the nut end to droop naturally, realizing automatic flipping, and gradually adjusting to the correct posture with the screw end facing forward and the nut end facing backward.

[0026] During the flipping process, two sets of inclined limiting plates 7 provide lateral restraint to the screws, preventing them from shifting laterally or squeezing into the channel side by side, ensuring that they pass through in a single row along the axial direction. If the screws happen to enter between the positioning protrusions 8 in a lateral posture, the continuous vibration generated by the straight vibrator 2 can cause them to oscillate slightly, breaking the static balance, and completing the rotation and unblocking under the action of gravity, thus avoiding material jamming.

[0027] To prevent screws in abnormal positions from continuing to enter the material trough and causing blockage, multiple material distribution columns 10 are provided on the fixing rods 9 on the left and right sides of the base 1. The material distribution columns 10 are located directly above the gap between the positioning protrusions 8 of the corresponding material trays 6, which blocks screws that have not completed their flipping or are in disordered position, preventing them from entering the downstream channel and achieving active anti-jamming.

[0028] After the screws have completed their posture correction and passed the screening, they fall into the trough formed between the two material trays 6. Driven by the vertical vibrator 2, the material trays 6 as a whole generate directional vibration, which drives the screws to swing and transmit to the right in sequence, keeping the screw ends facing forward and continuously pushing them to the right.

[0029] When it is necessary to change the screw specifications or adjust the discharge status, the operator rotates the knob 17 at the front end of the bidirectional screw 16 to drive the bidirectional screw 16 to rotate, thereby driving the two sliding plates 15 to move synchronously between the fixed blocks 14. The sliding plates 15 slide and engage with the bottom of the material tray 6. The adapter groove 151 at its right end overlaps with the outlet groove 601 of the material tray 6 to different degrees as the position changes, so as to realize the continuous adjustment of the opening and closing of the discharge port. The second guide rod 18 ensures that the sliding plates 15 move smoothly and prevents deflection. After the adjustment is completed, the screws that meet the requirements are discharged from the outlet groove 601 and fall into the discharge guide plate 13 on the right side of the base 1.

[0030] The material discharge guide plate 13 is arranged with the left side higher than the right side. Its left side is located below the right side of the material tray 6, which can effectively receive the discharged material and guide the screw to slide down the slope to the packaging station or recycling area with the help of gravity, so as to realize the orderly diversion of materials and continuous operation.

Claims

1. A screw sorting and packaging machine with anti-jamming features, characterized in that: The system includes a base (1), a vibrator (2), a mounting base (3), a first guide rod (4), a spring (5), a material tray (6), a limiting plate (7), a positioning protrusion (8), a fixing rod (9), and a material distribution column (10). The vibrator (2) is mounted on the top of the base (1). The four corners of the top output end face of the vibrator (2) are respectively fixedly connected to the mounting base (3). The first guide rod (4) is slidably connected inside the mounting base (3). The top of the two first guide rods (4) on the front and rear sides are connected to a material tray (6). The two material trays (6) cooperate to form a material trough. A spring (5) is provided between the material tray (6) and the mounting base (3). The spring (5) is sleeved on the outer periphery of the first guide rod (4). The two material trays (6) are symmetrically arranged front and back. Two sets of inclined and parallel limiting plates (7) are fixed between the front and back sides of the inner wall of the two material trays (6). The outer wall of the two material trays (6) is provided with a feed port in the area between the two limiting plates (7). Several positioning protrusions (8) are provided on the side of the inner top of the two material trays (6) that are close to each other. The top of the base (1) is fixedly connected to the left and right sides of the vertical vibrator (2). The two fixing rods (9) are centrally symmetrically arranged. Multiple material distribution columns (10) are fixedly connected to the lower part of the side of the two fixing rods (9) that are close to each other. The material distribution columns (10) are located directly above the gap between the positioning protrusions (8) of the corresponding material trays (6).

2. The screw sorting and packaging machine for preventing material jamming as described in claim 1, characterized in that: It also includes a stepped feeder (11) and a guide table (12). The stepped feeder (11) is provided on the front and rear sides of the base (1). The discharge end of the stepped feeder (11) is aligned with the feed inlet on the outer wall of the material tray (6) to deliver the screws into the material tray (6). The guide table (12) is provided at the top of the material tray (6) near the feed inlet. The side of the two guide tables (12) that are close to each other is an inclined surface.

3. The screw sorting and packaging machine for preventing material jamming as described in claim 2, characterized in that: It also includes a feeding guide plate (13). The feeding guide plate (13) is fixedly connected to the right side of the base (1). The feeding guide plate (13) is inclined with the left side higher than the right side, and its left side is located below the right side of the material tray (6).

4. The screw sorting and packaging machine for preventing jamming as described in claim 3, characterized in that: It also includes a fixed block (14) and a sliding plate (15). The fixed block (14) is fixedly connected between the left and right sides of the two trays (6), and two sliding plates (15) are slidably connected between the two fixed blocks (14). The sliding plates (15) are slidably engaged with the bottom of the trays (6).

5. A screw sorting and packaging machine for preventing material jamming as described in claim 4, characterized in that: The two trays (6) have an outlet groove (601) on the lower right side, and the two sliding plates (15) have an adapter groove (151) on the lower right side that matches the outlet groove (601).

6. The screw sorting and packaging machine for preventing material jamming as described in claim 5, characterized in that: It also includes a bidirectional screw (16), a knob (17), and a second guide rod (18). The bidirectional screw (16) is threaded between the left ends of the two sliding plates (15), and the knob (17) is fixedly connected to the front end of the bidirectional screw (16). The second guide rod (18) is slidably connected between the right ends of the two sliding plates (15).

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