Screw weighing and packaging equipment

Abstract

The utility model provides a screw weighing and packaging device which comprises a packaging bag and further comprises a discharging hopper, a screw weighing device, a screw weighing device and a screw weighing device. The material conveying unit is arranged at the discharging port, the material conveying unit comprises a rotating disc, a machine shell and a discharging plate rotationally connected to the interior of the machine shell, a supporting column is rotationally connected to the eccentric position of the rotating disc, and a spring abutting against and pushing the discharging plate is arranged on the supporting column; and the weighing unit comprises a guide block, a supporting frame and a weight detector arranged on the machine shell. According to the screw weighing and packaging equipment, the weighing unit is utilized, screws are poured into the discharging hopper, the rotating disc is rotated to be in linkage with the supporting column to rotate, the discharging plate swings up and down through the spring so that the screws can fall into packaging bags one by one, the weight is detected through the weight detector, and when the proper weight is reached, the rotating disc stops rotating, and the packaging bags are replaced; and due to the automatic sliding mode, the packaging efficiency of the screws is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of screw production, in particular to a screw weighing and packaging device. Background Art

[0002] Screws are fasteners consisting of a threaded portion and a polished rod. The threaded portion passes through a through-hole in a component and engages with the object being fixed, while the polished rod often features a slotted, cross-shaped, or hexagonal groove for traction. However, after the screws are formed, they need to be manually removed and packed into bags in a specified quantity. This process can easily cause contact with the pointed end of the screw, leading to hand injuries and safety hazards. Utility Model Content

[0003] The purpose of the utility model is to address the above-mentioned problems in the existing technology and to solve the problem that workers are prone to contact with the screw tips during the packaging process, causing safety hazards.

[0004] In order to achieve the above-mentioned purpose, the present invention can be implemented through the following technical solutions: a screw weighing and packaging device, including a packaging bag, and also including:

[0005] A lower hopper with discharge ports arranged in a circular pattern;

[0006] A feeding unit is provided at the discharge port, comprising a turntable, a housing, and a blanking plate rotatably connected to the housing, wherein an eccentric portion of the turntable is rotatably connected to a support column, the support column is provided with a spring for pushing the blanking plate, and the turntable is rotatably connected to the housing;

[0007] A weighing unit is arranged on the casing, and the weighing unit includes a guide block, a support frame and a weight detector arranged on the casing. The guide block is symmetrically arranged on the casing, and a sliding rod is slidably arranged in the guide block. The two ends of the sliding rod are respectively matched with the weight detector and the support frame. The support frame is provided with a splint for clamping the packaging bag so that the packaging bag is located directly below the blanking plate.

[0008] In an embodiment of the present utility model, the feeding unit further includes a side plate and a motor arranged on one side of the side plate, a first synchronous wheel and a second synchronous wheel are rotatably arranged on the side plate, and a synchronous belt is arranged between the first synchronous wheel and the second synchronous wheel;

[0009] A rotating shaft matched with the motor is provided at the axis center of the first synchronous wheel, and the second synchronous wheel is matched with the rotating disk.

[0010] In an embodiment of the utility model, a material distribution barrel matched with the housing is clamped on the rotating shaft, and blades are arranged on the material distribution barrel in a circumferential array, and two adjacent blades form a material discharge cavity.

[0011] In an embodiment of the present invention, a bracket for supporting the motor is provided on the side panel.

[0012] In an embodiment of the present invention, an observation plate is clamped on the housing, and the observation plate is a transparent plastic plate.

[0013] In an embodiment of the present utility model, a conical disc is provided at the axis center of the discharge hopper to match the discharge plate.

[0014] In this embodiment of the utility model, at least six of the feeding units and the weighing units are provided.

[0015] In an embodiment of the present invention, a base is provided at the bottom of the lower hopper, and material troughs are provided on the base in a circular array.

[0016] Compared with the existing technology, the advantages of this application are: a weighing unit is used to pour the screws into the discharge hopper, and the turntable is rotated to link the support column to rotate, so that the discharge plate is swung up and down by the spring to drop the screws into the packaging bag one by one, and the weight is detected by the weight detector. When the appropriate weight is reached, the turntable stops rotating and the packaging bag is replaced. The automatic sliding method improves the packaging efficiency of the screws. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure;

[0018] Figure 2 It is a structural diagram of the feeding unit and weighing unit separated from the lower hopper;

[0019] Figure 3 It is a schematic diagram of the exploded structure of the feeding unit;

[0020] Figure 4 yes Figure 3 A partial enlarged view of shown A;

[0021] Figure 5 It is a schematic diagram of the overall structure of the half-section lower hopper.

[0022] Description of reference numerals:

[0023] 1. Feed hopper; 11. Conical disc; 12. Discharge port; 2. Feeding unit; 21. Casing; 210. Observation panel; 22. Feeding plate; 23. Distributing barrel; 231. Blade; 26. Side panel; 261. First synchronous wheel; 262. Rotating shaft; 263. Motor; 264. Bracket; 265. Second synchronous wheel; 266. Synchronous belt; 27. Turntable; 271. Support column; 28. Spring; 3. Weighing unit; 31. Weight detector; 32. Slide bar; 33. Guide block; 34. Support frame; 35. Clamp; 4. Packaging bag; 5. Base; 51. Material trough. DETAILED DESCRIPTION

[0024] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention.

[0025] like Figure 1-4 As shown, a screw weighing and packaging device includes a packaging bag 4 and also includes:

[0026] The lower hopper 1 has discharge ports 12 arranged in a circular pattern;

[0027] The feeding unit 2 is provided at the discharge port 12 and includes a turntable 27, a housing 21, and a blanking plate 22 rotatably connected to the housing 21. A support column 271 is rotatably connected to the eccentric portion of the turntable 27. The support column 271 is provided with a spring 28 for pushing the blanking plate 22. The turntable 27 is rotatably connected to the housing 21.

[0028] The weighing unit 3 is arranged on the casing 21. The weighing unit 3 includes a guide block 33, a support frame 34 and a weight detector 31 arranged on the casing 21. The guide block 33 is symmetrically arranged on the casing 21, and a slide rod 32 is slidably arranged in the guide block 33. The two ends of the slide rod 32 are respectively matched with the weight detector 31 and the support frame 34. The support frame 34 is provided with a clamping plate 35 for clamping the packaging bag 4 so that the packaging bag 4 is located directly below the blanking plate 22.

[0029] Specifically, the number of discharge ports 12 opened in the discharge hopper 1 is the same as the number of the feeding unit 2 and the weighing unit 3, and the casing 21 in the weighing unit 3 is clamped in the discharge hopper 1, and the screws are guided by the discharge hopper 1 to make the screws slide along the wall and contact the discharge plate 22, and the turntable 27 is rotated so that the support column 271 at the eccentric position continuously pushes the discharge plate 22 through the spring 28, so that the discharge plate 22 vibrates, so that the screws are discharged evenly from the casing 21, and as the screws fall one by one from the casing 21 into the packaging bag 4, the weight in the packaging bag 4 increases, and the weight detector 31 performs weight detection. When a certain weight range is reached, an electrical signal will be sent to control the turntable 27 to stop rotating. Then the worker will replace the packaging bag 4 and continue to start weighing and packaging, thereby improving the packaging efficiency of the screws. Compared with manual packaging, the damage to the hands caused by the screws is reduced.

[0030] As an embodiment further provided by the present invention, the feeding unit 2 also includes a side plate 26 and a motor 263 arranged on one side of the side plate 26. A first synchronous wheel 261 and a second synchronous wheel 265 are rotatably arranged on the side plate 26. A synchronous belt 266 is arranged between the first synchronous wheel 261 and the second synchronous wheel 265. A rotating shaft 262 cooperating with the motor 263 is arranged at the axis center of the first synchronous wheel 261. The second synchronous wheel 265 cooperates with the turntable 27. The motor 263 serves as a power source. When the motor 263 is started, the first synchronous wheel 261 is driven to rotate through the rotating shaft 262, thereby linking the second synchronous wheel 265 to rotate through the synchronous belt 266. Since the number of teeth of the first synchronous wheel 261 is less than the number of teeth of the second synchronous wheel 265, the swing frequency of the blanking plate 22 in the casing 21 is slowed down, thereby reducing the number of screws falling into the packaging bag 4.

[0031] As an embodiment further provided by the present invention, a dividing barrel 23 that cooperates with the casing 21 is clamped on the rotating shaft 262, and blades 231 are arranged in a circular array on the dividing barrel 23. Two adjacent blades 231 form a feeding cavity. When the feeding plate 22 is continuously swung for feeding, its screw will fall into the feeding cavity in advance. The adjacent blades 231 limit the screw to be placed horizontally in the feeding cavity, and the dividing barrel 23 rotates to make the screw fall horizontally into the packaging bag 4, thereby reducing the vertical falling of the screw and puncturing the packaging bag 4, and also reducing the collision and wear of the tip of the screw.

[0032] As an embodiment further provided by the present invention, a bracket 264 supporting the motor 263 is provided on the side panel 26. The bracket 264 is fixed to the side panel 26 by bolts, and the motor 263 is fixed to the side wall of the side panel 26 by the bracket 264. The model of the motor 263 is: MHMF042L1U2M2.

[0033] As an embodiment further provided by the present invention, an observation panel 210 is snapped onto the casing 21. The observation panel 210 is a transparent plastic panel with a groove thereon, which facilitates workers to manually separate the observation panel 210 from the casing 21. At the same time, the operating status inside the casing 21 can be observed through the observation panel 210 during operation.

[0034] As a further embodiment provided by the present invention, a conical disc 11 is provided at the axis of the discharge hopper 1 to cooperate with the discharge plate 22. The surface of the conical disc 11 has a certain inclination angle, so that when the screw is placed in the discharge hopper 1, the screw will contact the discharge plate 22 along the inclination angle.

[0035] As an embodiment further provided by the present invention, at least six feeding units 2 and weighing units 3 are provided, and the number of feeding units 2 and weighing units 3 provided is the same. The more the number of the two is, the faster the efficiency of sorting and weighing screws will be.

[0036] As an embodiment further provided by the present invention, a base 5 is provided at the bottom of the lower hopper 1, and a material trough 51 is opened in a circular array on the base 5. The material trough 51 can prevent the accommodating box from catching the screws that fall after the motor 263 stops. The fallen screws can be reintroduced into the lower hopper 1 for packaging through the accommodating box.

[0037] Working principle: First, pour the processed screws into the discharge hopper 1, and the screws will slide along the conical disc 11 to the discharge port 12 and contact the discharge plate 22. The motor 263 drives the first synchronous wheel 261 and the second synchronous wheel 265 to rotate, thereby driving the turntable 27 to rotate in conjunction with the support column 271. Under the elastic action of the spring 28, the discharge plate 22 is driven to swing up and down in the casing 21, so that the screws fall into the discharge cavity of the dividing barrel 23 one by one, and the discharge cavity causes the screws to fall horizontally into the packaging bag 4, and then the weight detector 31 detects the weight in the packaging bag 4. When the weight reaches a certain range, the weight detector 31 will send an electrical signal to the motor 263 to stop the motor 263. The worker will replace the packaging bag 4 and continue to weigh and package, thereby improving the packaging efficiency of the screws.

[0038] The technical solution of the above-mentioned utility model provides a solution that is significantly different from the existing technology to address the technical problem that the existing technology solution is too single. The parts not involved in the technical solution of this application are the same as the existing technology or can be implemented by using the existing technology, and will not be repeated here.

[0039] The technical solutions in the above embodiments have clearly and completely described the contents of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

Claims

1. A screw weighing and packaging device, comprising a packaging bag, characterized in that: Also includes: A lower hopper with discharge ports arranged in a circular pattern; A feeding unit is provided at the discharge port, comprising a turntable, a housing, and a blanking plate rotatably connected to the housing, wherein an eccentric portion of the turntable is rotatably connected to a support column, the support column is provided with a spring for pushing the blanking plate, and the turntable is rotatably connected to the housing; A weighing unit is arranged on the casing, and the weighing unit includes a guide block, a support frame and a weight detector arranged on the casing. The guide block is symmetrically arranged on the casing, and a sliding rod is slidably arranged in the guide block. The two ends of the sliding rod are respectively matched with the weight detector and the support frame. The support frame is provided with a splint for clamping the packaging bag so that the packaging bag is located directly below the blanking plate.

2. The screw weighing and packaging equipment according to claim 1, characterized in that: The feeding unit further includes a side plate and a motor arranged on one side of the side plate, a first synchronous wheel and a second synchronous wheel are rotatably arranged on the side plate, and a synchronous belt is arranged between the first synchronous wheel and the second synchronous wheel; A rotating shaft matched with the motor is provided at the axis center of the first synchronous wheel, and the second synchronous wheel is matched with the rotating disk.

3. The screw weighing and packaging equipment according to claim 2, characterized in that: A material distributing barrel matched with the housing is clamped on the rotating shaft. Blades are arranged on the material distributing barrel in a circumferential array, and two adjacent blades form a material discharge cavity.

4. The screw weighing and packaging equipment according to claim 2, characterized in that: A bracket for supporting the motor is provided on the side plate.

5. The screw weighing and packaging equipment according to claim 1, characterized in that: An observation plate is clamped on the housing, and the observation plate is a transparent plastic plate.

6. The screw weighing and packaging equipment according to claim 1, characterized in that: A conical disc is provided at the axis center of the discharge hopper to match the discharge plate.

7. The screw weighing and packaging equipment according to claim 1, characterized in that: At least six of the feeding units and the weighing units are provided.

8. The screw weighing and packaging equipment according to claim 1, characterized in that: A base is provided at the bottom of the lower hopper, and material troughs are provided on the base in a circular array.

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