Weighing and screening mechanism for injection molded parts

By designing the weighing and screening mechanism of injection molded parts, using conveying rollers and weight measuring sensors to monitor product weight, and automatically classifying qualified and unqualified goods, the problem of manual inspection in the production of injection molded workpieces is solved, and product quality and production efficiency are improved.

CN223221971UActive Publication Date: 2025-08-15SHANGHAI DINGRUI MOULD&MOLDING CO LTD
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Patent Information

Application Number
CN202422424987.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-09
Publication Date
2025-08-15
Estimated Expiration
2034-10-09

AI Technical Summary

Technical Problem

During the production process of injection molded workpieces, it is difficult for workers to detect internal problems in visual inspection that cause unqualified products to flow into the next process, affecting production quality and efficiency.

Method used

A weighing and screening mechanism for injection molded parts is designed, and the weight of the product is monitored by conveying rollers and weight measuring sensors. The main machine controls the rotation of the material separation shaft to achieve the turning of the guide plate, and classifies qualified and unqualified goods.

Benefits of technology

Automatic product quality control has been realized, workers have been reduced, and product quality and production efficiency have been improved.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of injection molding workpieces, and discloses an injection molding part weighing and screening mechanism which comprises a bottom plate, two supporting frames are arranged above the bottom plate, two side plates are fixedly connected to the upper surfaces of the two supporting frames, and a plurality of conveying shafts are rotationally connected between the two side plates; the outer surface of each conveying shaft is fixedly connected with a conveying roller, and a sliding plate is arranged above the right end of the bottom plate. According to the injection molding part weighing and screening mechanism, through the arranged conveying rollers and conveying shafts, the purpose of conveying products can be achieved, in the conveying process, the purpose of monitoring the weight of the products can be achieved through a weight measuring sensor, and when the products are abnormal, rotation of a material distributing shaft can be independently controlled through an arranged control display host, so that the production efficiency is improved. Therefore, the purpose of turning over the guide plate is achieved, the effect of classifying qualified goods and unqualified goods is achieved, the labor intensity of workers is effectively reduced, and the quality control of products is improved.
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Description

Technical Field

[0001] The present application relates to the technical field of injection molded workpieces, and in particular to a weighing and screening mechanism for injection molded parts. Background Art

[0002] Injection molded parts are plastic products produced through the injection molding process. During the injection molding process, the plastic raw material is melted under heat and pressure and injected into the cavity of the mold, and then rapidly cooled and solidified to form the desired part shape.

[0003] During the production process of injection molded workpieces, when the injection molding machine pressure is too low, the injection time is too short, the mold temperature is too low, the melt temperature is too high, or the mold pouring system is blocked, it is easy to cause the injection molded parts to be incomplete, and there will be problems such as bubbles, gaps, and shrinkage holes. Therefore, after the injection molding is completed, workers are required to monitor the quality of the workpiece on both sides of the conveyor. However, it is difficult for workers to find problems inside the workpiece through visual inspection, which causes the problem products to flow into the next process for processing, affecting production quality and efficiency. Utility Model Content

[0004] In response to the deficiencies in the prior art, the present application provides an injection molded parts weighing and screening mechanism, which has the advantages of screening problematic workpieces and solves the problems raised in the background technology.

[0005] To achieve the above objectives, the present application provides the following technical solution: an injection molded part weighing and screening mechanism, comprising a base plate, two support frames provided above the base plate, two side plates fixedly connected to the upper surfaces of the two support frames, a plurality of conveying shafts rotatably connected between the two side plates, and a conveying roller fixedly connected to the outer surface of each conveying shaft;

[0006] A slide plate is provided above the right end of the base plate, a partition plate is fixedly connected to the upper surface of the slide plate, the front and rear ends of the upper surface of the slide plate are rotatably connected to the distribution shafts, the outer surfaces of the two distribution shafts are fixedly connected to the guide plates, and the two guide plates are symmetrically arranged.

[0007] Through the above scheme, the purpose of conveying products can be achieved through the provision of conveying rollers and conveying shafts. During the conveying process, the weight of the products can be monitored through the weighing sensor. When the product is abnormal, the rotation of the material distribution shaft can be controlled independently through the provision of the control display host, thereby achieving the purpose of flipping the guide plate, achieving the effect of classifying qualified goods and unqualified goods, effectively reducing the labor intensity of workers and improving product quality control.

[0008] Furthermore, the left ends of the upper surfaces of the two side plates are fixedly connected with L-shaped plates, the left ends of the two L-shaped plates are fixedly installed with proximity switches, and the two proximity switches are optically connected.

[0009] Through the above solution, by setting the proximity switch, it is possible to monitor whether there is material reaching above the conveying roller.

[0010] Furthermore, two weighing sensors are installed on the upper surface of the base plate, and the monitoring ends of the two weighing sensors are fixedly connected to the support frame adjacent thereto.

[0011] Through the above solution and the provision of a weighing sensor, the purpose of measuring the weight of a workpiece can be achieved.

[0012] Furthermore, the front end of each conveying shaft is fixedly connected to a gear, an idler wheel is provided between every two adjacent gears, each idler wheel is rotatably connected to the front side plate, and each gear is meshed with the adjacent idler wheel.

[0013] Through the above solution, by arranging the gears and the idler wheels, the purpose of synchronous rotation of multiple conveying rollers can be achieved.

[0014] Furthermore, a bracket is fixedly connected to the bottom of the skateboard, and the bottom end of the bracket is fixedly connected to the bottom plate.

[0015] Through the above solution and the provision of the bracket, the purpose of supporting the skateboard can be achieved.

[0016] Furthermore, the front end of the conveying shaft on the far left is fixedly connected to the output end of the external motor via a coupling.

[0017] Through the above solution, by setting an external motor, it is possible to provide power for the rotation of the conveying roller.

[0018] Furthermore, the bottom ends of the two material distribution shafts are fixedly connected to the output ends of the external motor through couplings.

[0019] Through the above solution, the external motor is set to provide power for the rotation of the material distribution shaft.

[0020] Furthermore, a control and display host is installed at the rear end of the upper surface of the base plate, and the proximity opening pipe, the weighing sensor and the external motor are all electrically connected to the control display.

[0021] Through the above solution, the purpose of controlling the electrical components can be achieved by controlling the settings of the display host.

[0022] Compared with the existing technology, the technical solution of this application has the following beneficial effects:

[0023] This injection molded parts weighing and screening mechanism can achieve the purpose of conveying products through the provided conveying rollers and conveying shafts. During the conveying process, the weight of the products can be monitored through the weighing sensors. When the products are abnormal, the rotation of the material distribution shaft can be independently controlled through the provided control and display host, thereby achieving the purpose of flipping the guide plate, achieving the effect of classifying qualified goods and unqualified goods, effectively reducing the labor intensity of workers and improving product quality control. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A three-dimensional diagram of the overall structure of this application Figure 1 ;

[0025] Figure 2 This is a front view of the overall structure of this application;

[0026] Figure 3 A three-dimensional diagram of the overall structure of this application Figure 2 ;

[0027] Figure 4 A three-dimensional diagram of the overall structure of this application Figure 3 .

[0028] In the picture:

[0029] 1. Bottom plate; 2. Support frame; 3. Side plate; 4. Conveyor shaft; 5. Conveyor roller; 6. Slide plate; 7. Partition plate; 8. Material separation shaft; 9. Guide plate; 10. L-shaped plate; 11. Proximity switch; 12. Weight sensor; 13. Gear; 14. Idle pulley; 15. Bracket; 16. Control and display host. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0031] See also Figure 1 、 Figure 2 and Figure 3In this embodiment, an injection molded part weighing and screening mechanism includes a base plate 1, two support frames 2 are provided above the base plate 1, and two side plates 3 are fixedly connected to the upper surfaces of the two support frames 2. A plurality of conveying shafts 4 are rotatably connected between the two side plates 3, and a conveying roller 5 is fixedly connected to the outer surface of each conveying shaft 4. The front end of each conveying shaft 4 is fixedly connected to a gear 13, and an idler wheel 14 is provided between every two adjacent gears 13. Each idler wheel 14 is rotatably connected to the side plate 3 in front, and each gear 13 is meshed with the idler wheel 14 adjacent to it. By setting the gears 13 and the idler wheels 14, the purpose of synchronous rotation of multiple conveying rollers 5 can be achieved.

[0032] See also Figure 1 、 Figure 2 and Figure 3 A slide plate 6 is provided above the right end of the bottom plate 1, and a partition plate 7 is fixedly connected to the upper surface of the slide plate 6. The front and rear ends of the upper surface of the slide plate 6 are rotatably connected to the dividing shaft 8. The outer surfaces of the two dividing shafts 8 are fixedly connected to guide plates 9. The two guide plates 9 are arranged symmetrically. A bracket 15 is fixedly connected to the bottom of the slide plate 6, and the bottom end of the bracket 15 is fixedly connected to the bottom plate 1. By setting the bracket 15, the purpose of supporting the slide plate 6 can be achieved.

[0033] See also Figure 1 、 Figure 2 and Figure 3 The left ends of the upper surfaces of the two side panels 3 are fixedly connected with L-shaped plates 10, and the left ends of the two L-shaped plates 10 are fixedly installed with proximity switches 11. The two proximity switches 11 are optically connected. Through the setting of the proximity switches 11, it is possible to monitor whether there is material reaching the top of the conveyor roller 5. Two weight sensors 12 are installed on the upper surface of the bottom plate 1. The monitoring ends of the two weight sensors 12 are fixedly connected to the support frame 2 close to them. Through the setting of the weight sensor 12, the purpose of measuring the weight of the workpiece can be achieved.

[0034] See also Figure 1 、 Figure 2 and Figure 4 The front end of the leftmost conveying shaft 4 is fixedly connected to the output end of the external motor through a coupling. Through the setting of the external motor, it can provide power for the rotation of the conveying roller 5. The bottom ends of the two material distribution shafts 8 are respectively fixedly connected to the output end of the external motor through a coupling. Through the setting of the external motor, it can provide power for the rotation of the material distribution shaft 8. A control and display host 16 is installed at the rear end of the upper surface of the base plate 1. The proximity opening pipe, weight sensor 12 and external motor are all electrically connected to the control display. Through the setting of the control and display host 16, the purpose of controlling the electrical components can be achieved.

[0035] In this embodiment, an injection molded part weighing and screening mechanism can achieve the purpose of conveying products through the provided conveying rollers 5 and conveying shafts 4. During the conveying process, the weight of the products can be monitored through the weight measuring sensor 12. When the product is abnormal, the control display host 16 can be set to independently control the rotation of the material distribution shaft 8, thereby achieving the purpose of flipping the guide plate 9, achieving the effect of classifying qualified goods and unqualified goods, effectively reducing the labor intensity of workers and improving product quality control.

[0036] It should be noted that the left ends of the two side panels 3 are connected to the external conveyor.

[0037] The working principle of the above embodiment is: when in use, external goods are transported to the left side of the side panel 3 by the external conveyor. After being identified by the proximity switch 11, the control display host 16 drives the conveyor shaft 4 to drive the conveyor roller 5 to rotate, thereby achieving the purpose of driving the goods to move. During the movement, the goods exert pressure on the weighing sensor 12, which can monitor the weight of the goods. When there is an abnormality, the material dividing shaft 8 at the rear rotates, driving the guide plate 9 to flip to one side, so that the product slides under the guidance of the front guide plate 9 to the back of the partition plate 7. When the product is normal, the front guide plate 9 flips, causing the product to slide from the front of the partition plate 7.

[0038] 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 the existence of any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.

[0039] Although the embodiments of the present application 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 application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A weighing and screening mechanism for injection molded parts, comprising a bottom plate (1), characterized in that: Two support frames (2) are provided above the bottom plate (1); the upper surfaces of the two support frames (2) are fixedly connected to two side plates (3); a plurality of conveying shafts (4) are rotatably connected between the two side plates (3); and the outer surface of each conveying shaft (4) is fixedly connected to a conveying roller (5); A slide plate (6) is provided above the right end of the bottom plate (1), a partition plate (7) is fixedly connected to the upper surface of the slide plate (6), and a material distribution shaft (8) is rotatably connected to the front and rear ends of the upper surface of the slide plate (6), and the outer surfaces of the two material distribution shafts (8) are fixedly connected to guide plates (9), and the two guide plates (9) are symmetrically arranged.

2. The injection molded parts weighing and screening mechanism according to claim 1, characterized in that: The left ends of the upper surfaces of the two side plates (3) are fixedly connected with an L-shaped plate (10), the left ends of the two L-shaped plates (10) are fixedly installed with a proximity switch (11), and the two proximity switches (11) are optically connected.

3. The injection molded parts weighing and screening mechanism according to claim 1, characterized in that: Two weighing sensors (12) are installed on the upper surface of the base plate (1), and the monitoring ends of the two weighing sensors (12) are fixedly connected to the support frame (2) adjacent thereto.

4. The injection molded parts weighing and screening mechanism according to claim 1, characterized in that: The front end of each conveying shaft (4) is fixedly connected to a gear (13), an idler wheel (14) is provided between each two adjacent gears (13), each idler wheel (14) is rotationally connected to the front side plate (3), and each gear (13) is meshedly connected to the adjacent idler wheel (14).

5. The injection molded parts weighing and screening mechanism according to claim 1, characterized in that: The bottom of the slide plate (6) is fixedly connected to a bracket (15), and the bottom end of the bracket (15) is fixedly connected to the bottom plate (1).

6. The injection molded parts weighing and screening mechanism according to claim 1, characterized in that: The front end of the conveying shaft (4) on the far left is fixedly connected to the output end of the external motor via a coupling.

7. The injection molded parts weighing and screening mechanism according to claim 1, characterized in that: The bottom ends of the two material distribution shafts (8) are respectively fixedly connected to the output ends of the external motor through couplings.

8. The injection molded parts weighing and screening mechanism according to claim 1, characterized in that: A control display host (16) is installed at the rear end of the upper surface of the base plate (1), and the proximity open pipe, the weight sensor (12) and the external motor are all electrically connected to the control display.