A micro-weighing system for polymer raw materials

Abstract

This utility model relates to the field of micro-weighing technology, specifically to a micro-weighing scale for polymer raw materials. It includes a main body, a conveyor frame, a weighing cylinder, an anti-detachment mechanism, and a protective mechanism. The conveyor frame is fixedly installed on the main body, and the weighing cylinder is placed on the conveyor frame. The anti-detachment mechanism is fixedly installed on the weighing cylinder to prevent the material bag inside the weighing cylinder from falling off. The protective mechanism is fixedly installed on the anti-detachment mechanism to protect the material bag inside the weighing cylinder. The anti-detachment mechanism includes a fixing ring, a rotating ring, and a moving rod. The fixing ring is fixedly installed on the weighing cylinder and has a straight groove. This micro-weighing scale for polymer raw materials, through its anti-detachment mechanism, can fix the opening of the material bag placed inside the weighing cylinder to the outer wall of the weighing cylinder, thereby preventing the material bag from falling off during conveying and dispensing, thus improving the efficiency and accuracy of the micro-weighing scale.

Description

Technical Field

[0001] This utility model relates to the field of micro-weighing technology, specifically to a micro-weighing system for polymer raw materials. Background Technology

[0002] Polymer raw materials are a class of organic compound raw materials with relatively large molecular weights, usually formed by the repeated linkage of one or more simple low-molecular-weight compounds through polymerization reactions. They have unique properties such as high strength, toughness, wear resistance, and corrosion resistance. Furthermore, their properties can be precisely controlled by changing the type of monomer, polymerization method, and processing conditions to meet the diverse needs of different fields.

[0003] The polymer raw material micro-weighing device is a device for accurately weighing polymer raw materials. It has high precision, capable of weighing down to the milligram or even microgram level. It can be integrated with automated batching systems to achieve a high degree of automation in automatic weighing, batching, and recording. It has multiple weighing modes and parameter settings for multifunctionality.

[0004] Existing micro-weighing systems use a material bag fitted over a weighing cylinder to allow raw materials to fall into the bag for batching and weighing, facilitating retrieval after batching and weighing. However, during the batching and weighing process, the material bag can easily detach from the outer wall of the weighing cylinder and fall into the cylinder, affecting subsequent batching, weighing, and retrieval operations, thus reducing the accuracy and effectiveness of the micro-weighing system. Summary of the Invention

[0005] The purpose of this invention is to provide a micro-weighing scale for polymer raw materials.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] A micro-weighing system for polymer raw materials is provided, comprising a micro-weighing body, a conveyor frame, a weighing cylinder, an anti-detachment mechanism, and a protective mechanism. The conveyor frame is fixedly installed on the micro-weighing body, the weighing cylinder is placed on the conveyor frame, the anti-detachment mechanism is fixedly installed on the weighing cylinder, the anti-detachment mechanism is used to prevent the material bag inside the weighing cylinder from falling off, and the protective mechanism is fixedly installed on the anti-detachment mechanism, the protective mechanism is used to protect the material bag inside the weighing cylinder.

[0008] Furthermore, the anti-detachment mechanism includes a fixed ring, a rotating ring, and a moving rod. The fixed ring is fixedly installed on the weighing cylinder and has a straight groove. The rotating ring is rotatably installed on the fixed ring and has an arc-shaped groove. The moving rod is slidably installed on the arc-shaped groove and is slidably connected to the straight groove.

[0009] Furthermore, the anti-detachment mechanism also includes a sliding rod, a moving mechanism, and a limiting mechanism. A groove is provided on the fixed ring, the sliding rod is fixedly installed on the rotating ring, and the sliding rod is slidably connected to the groove. The moving mechanism is fixedly installed on the fixed ring and is used to drive the moving rod to move vertically. The limiting mechanism is fixedly installed on the rotating ring and is used to limit the rotation ring.

[0010] Furthermore, the moving mechanism includes a fixed plate and a cylindrical block. The fixed plate is fixedly installed on the fixed ring, and an inclined groove is provided on the fixed plate. The cylindrical block is fixedly installed on the moving rod, and the cylindrical block is slidably connected to the inclined groove.

[0011] Furthermore, the limiting mechanism includes a locking pin, which is connected to the rotating ring by a spring, and the locking pin is slidably connected to the rotating ring. A circular hole is provided on the fixed ring, and the locking pin engages with the circular hole.

[0012] Furthermore, the protective mechanism includes a mounting block, a plug-in sleeve, and a rubber pad. The mounting block is fixedly mounted on the movable rod, the plug-in sleeve is plugged into the mounting block, and the rubber pad is fixedly mounted on the plug-in sleeve.

[0013] Furthermore, the protective mechanism also includes a wedge, which is connected to the mounting block by a limiting spring and is slidably connected to the mounting block. The plug sleeve has a groove, and the wedge engages with the groove.

[0014] The beneficial effects of this utility model are as follows: This polymer raw material micro-weighing device, through its anti-detachment mechanism, can fix the opening of the material bag placed inside the weighing cylinder to the outer wall of the weighing cylinder, thereby preventing the material bag from falling off during conveying and dispensing, thus improving the use effect and accuracy of the micro-weighing device. In addition, through the protective mechanism, the rubber pad can effectively clamp and fix the opening of the material bag, while avoiding friction damage to the opening of the material bag, further improving the use effect of the micro-weighing device. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the embodiments of this utility model will be briefly introduced below.

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a schematic diagram of the main structure of the weighing cylinder of this utility model;

[0018] Figure 3 This is a schematic diagram of the main structure of the anti-detachment mechanism of this utility model;

[0019] Figure 4 This is a schematic diagram of the disassembled structure of the anti-detachment mechanism of this utility model;

[0020] Figure 5 This is a schematic diagram of the main structure of the bidirectional telescopic rod of this utility model;

[0021] Figure 6 For the present utility model Figure 4 Enlarged structural diagram of section A.

[0022] In the diagram: 1. Micro-weighing body; 2. Conveyor frame; 3. Weighing cylinder; 4. Anti-detachment mechanism; 41. Fixed ring; 42. Rotating ring; 43. Moving rod; 44. Arc groove; 45. Straight groove; 46. Sliding rod; 47. Sliding groove; 48. Moving mechanism; 481. Fixed plate; 482. Inclined groove; 483. Cylindrical block; 49. Limiting mechanism; 491. Spring; 492. Snap-fit ​​post; 493. Round hole; 5. Protective mechanism; 51. Mounting block; 52. Insertion sleeve; 53. Rubber pad; 54. Wedge block; 55. Limiting spring; 56. Groove. Detailed Implementation

[0023] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0024] The accompanying drawings are for illustrative purposes only and are schematic diagrams, not actual images. They should not be construed as limiting the scope of this patent. To better illustrate the embodiments of this utility model, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0025] Reference Figures 1 to 3 The micro-weighing system for polymer raw materials shown includes a micro-weighing body 1, a conveyor frame 2, a weighing cylinder 3, an anti-detachment mechanism 4, and a protective mechanism 5. The conveyor frame 2 is fixedly installed on the micro-weighing body 1 and is used to convey the weighing cylinder 3 symmetrically. The weighing cylinder 3 is placed on the conveyor frame 2 and is used to support the material bag, thereby facilitating the material bag to be placed into the material bag and facilitating subsequent weighing operations. The anti-detachment mechanism 4 is fixedly installed on the weighing cylinder 3 and is used to prevent the material bag inside the weighing cylinder 3 from falling off, thereby preventing the material from falling directly into the weighing cylinder 3 and facilitating subsequent handling of the material bag. The protective mechanism 5 is fixedly installed on the anti-detachment mechanism 4 and is used to protect the material bag inside the weighing cylinder 3 symmetrically, preventing wear and tear on the material bag and improving the fixation effect of the material bag.

[0026] Reference Figure 2 and Figure 3The anti-detachment mechanism 4 includes a fixed ring 41, a rotating ring 42, and a moving rod 43. The fixed ring 41 is fixedly installed on the weighing cylinder 3, and a straight groove 45 is provided on the fixed ring 41. The straight groove 45 guides the moving rod 43 to prevent the moving rod 43 from deviating during movement. The rotating ring 42 is rotatably installed on the fixed ring 41, and an arc-shaped groove 44 is provided on the rotating ring 42. The rotation of the rotating ring 42 drives the arc-shaped groove 44 to rotate, thereby driving the moving rod 43 to move. The moving rod 43 is slidably installed on the arc-shaped groove 44, and the moving rod 43 is slidably connected to the straight groove 45. The movement of the moving rod 43 allows it to move closer to or away from the outer wall of the weighing cylinder 3, thereby squeezing and fixing or releasing the fixing effect on the bag opening.

[0027] Reference Figures 3 to 5 The anti-detachment mechanism 4 also includes a sliding rod 46, a moving mechanism 48, and a limiting mechanism 49. A groove 47 is provided on the fixed ring 41 to guide the sliding rod 46. The sliding rod 46 is fixedly installed on the rotating ring 42 and is slidably connected to the groove 47. Through the sliding effect of the sliding rod 46, the rotating ring 42 can be driven to rotate. The moving mechanism 48 is fixedly installed on the fixed ring 41 and is used to drive the moving rod 43 to move vertically, so that the moving rod 43 moves away from the weighing cylinder 3 and moves downward, making it easier for the staff to put on and take off the material bag. The limiting mechanism 49 is fixedly installed on the rotating ring 42 and is used to limit the rotating ring 42, thereby fixing the rotating ring 42 and keeping the moving rod 43 fixed.

[0028] Reference Figures 4 to 6 The moving mechanism 48 includes a fixed plate 481 and a cylindrical block 483. The fixed plate 481 is fixedly installed on the fixed ring 41, and the fixed plate 481 is provided with an inclined groove 482. The cylindrical block 483 is guided by the inclined groove 482. The cylindrical block 483 is fixedly installed on the moving rod 43, and the cylindrical block 483 is slidably connected with the inclined groove 482. Through the sliding effect of the cylindrical block 483 and the inclined groove 482, the moving rod 43 can move vertically at the same time as it moves along the straight groove 45.

[0029] Reference Figure 3 and Figure 4 The limiting mechanism 49 includes a locking post 492, which is connected to the rotating ring 42 by a spring 491. The locking post 492 and the rotating ring 42 are slidably connected. Through the elastic force of the spring 491, the locking post 492 is always locked with the round hole 493 when no external force is applied. The fixed ring 41 has a round hole 493, and the locking post 492 locks with the round hole 493. There are two round holes 493. By locking the locking post 492 with the round holes 493 at different positions, the rotating ring 42 is fixed at different positions.

[0030] Reference Figure 6 The protective mechanism 5 includes a mounting block 51, a plug sleeve 52, and a rubber pad 53. The mounting block 51 is fixedly mounted on the moving rod 43. The plug sleeve 52 is plugged into the mounting block 51. Through the plugging effect of the plug sleeve 52 and the mounting block 51, the rubber pad 53 can be installed on the moving rod 43. The rubber pad 53 is fixedly mounted on the plug sleeve 52. The rubber pad 53 can improve the fixing effect on the bag opening.

[0031] Reference Figure 6 The protective mechanism 5 also includes a wedge 54, which is connected to the mounting block 51 by a limiting spring 55 and is slidably connected to the mounting block 51. Through the elastic force of the limiting spring 55, the wedge 54 is always engaged with the groove 56 when no external force is applied. The insertion sleeve 52 has a groove 56, and the wedge 54 engages with the groove 56. Through the engaging effect of the wedge 54 and the groove 56, the insertion sleeve 52 is limited, so that the rubber pad 53 remains fixed.

[0032] This polymer raw material micro-weighing system, through its anti-detachment mechanism, can fix the opening of the material bag placed inside the weighing cylinder to the outer wall of the weighing cylinder, thereby preventing the material bag from falling off during conveying and dispensing, thus improving the performance and accuracy of the micro-weighing system. In addition, through the protective mechanism, the rubber pad can effectively clamp and fix the opening of the material bag, while avoiding friction damage to the opening of the material bag, further improving the performance of the micro-weighing system.

[0033] It should be stated that the above-described specific embodiments are merely preferred embodiments of this utility model and the technical principles employed. Those skilled in the art should understand that various modifications, equivalent substitutions, and variations can be made to this utility model. However, such variations, as long as they do not depart from the spirit of this utility model, should be within the protection scope of this utility model. Furthermore, some terminology used in this application specification and claims is not limiting, but merely for ease of description.

Claims

1. A micro-weighing scale for polymer raw materials, characterized in that, The weighing system includes a micro-weighing body (1), a conveyor frame (2), a weighing cylinder (3), an anti-detachment mechanism (4), and a protective mechanism (5). The conveyor frame (2) is fixedly installed on the micro-weighing body (1), the weighing cylinder (3) is placed on the conveyor frame (2), the anti-detachment mechanism (4) is fixedly installed on the weighing cylinder (3), and the anti-detachment mechanism (4) is used to prevent the material bag inside the weighing cylinder (3) from falling off. The protective mechanism (5) is fixedly installed on the anti-detachment mechanism (4), and the protective mechanism (5) is used to protect the material bag inside the weighing cylinder (3).

2. The micro-weighing method for polymer raw materials according to claim 1, characterized in that, The anti-detachment mechanism (4) includes a fixed ring (41), a rotating ring (42), and a moving rod (43). The fixed ring (41) is fixedly installed on the weighing cylinder (3), and a straight groove (45) is provided on the fixed ring (41). The rotating ring (42) is rotatably installed on the fixed ring (41), and an arc groove (44) is provided on the rotating ring (42). The moving rod (43) is slidably installed on the arc groove (44), and the moving rod (43) is slidably connected to the straight groove (45).

3. The micro-weighing method for polymer raw materials according to claim 2, characterized in that, The anti-detachment mechanism (4) further includes a slide rod (46), a moving mechanism (48), and a limiting mechanism (49). A sliding groove (47) is provided on the fixed ring (41). The slide rod (46) is fixedly installed on the rotating ring (42), and the slide rod (46) is slidably connected to the sliding groove (47). The moving mechanism (48) is fixedly installed on the fixed ring (41), and the moving mechanism (48) is used to drive the moving rod (43) to move vertically. The limiting mechanism (49) is fixedly installed on the rotating ring (42), and the limiting mechanism (49) is used to limit the rotating ring (42).

4. The micro-weighing method for polymer raw materials according to claim 3, characterized in that, The moving mechanism (48) includes a fixed plate (481) and a cylindrical block (483). The fixed plate (481) is fixedly installed on the fixed ring (41), and the fixed plate (481) has an inclined groove (482). The cylindrical block (483) is fixedly installed on the moving rod (43), and the cylindrical block (483) is slidably connected to the inclined groove (482).

5. The micro-weighing method for polymer raw materials according to claim 3, characterized in that, The limiting mechanism (49) includes a locking post (492), which is connected to the rotating ring (42) by a spring (491) and the locking post (492) is slidably connected to the rotating ring (42). A circular hole (493) is provided on the fixed ring (41), and the locking post (492) is locked to the circular hole (493).

6. The micro-weighing method for polymer raw materials according to claim 1, characterized in that, The protective mechanism (5) includes a mounting block (51), a plug sleeve (52), and a rubber pad (53). The mounting block (51) is fixedly mounted on the moving rod (43), the plug sleeve (52) is plugged into the mounting block (51), and the rubber pad (53) is fixedly mounted on the plug sleeve (52).

7. The micro-weighing method for polymer raw materials according to claim 6, characterized in that, The protective mechanism (5) also includes a wedge (54), which is connected to the mounting block (51) by a limiting spring (55) and is slidably connected to the mounting block (51). The plug sleeve (52) has a groove (56) and the wedge (54) engages with the groove (56).

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