A feed metering scale for plastic pellets

Abstract

The utility model discloses the technical field of plastic particle measurement, specifically a kind of for the discharge measurement scale of plastic particle, the utility model includes base, the right side upper portion of base is equipped with measuring box, the outside of measuring box is provided with adjusting mechanism;The adjusting mechanism includes the support frame being arranged at the outside of measuring box, connecting rod is installed between the outside of support frame, the lower end of support frame is fixedly connected to base, the outside of support frame is slidably connected with adjusting block.The utility model can guarantee that the position of packing bag inlet does not produce deviation when subsequent plastic particle discharges, effectively avoid the situation that plastic particle appears spillage when discharging;Simultaneously setting adjusting mechanism can adjust the height of limiting mechanism and inside and outside movement, can make it clamp fixedly the top inlet of packing bag of different length and width;In addition, anti-splashing mechanism is provided, which can effectively avoid the splashing of plastic particles during discharging.

Description

Technical Field

[0001] This utility model relates to the field of plastic granule metering technology, specifically a feeding and metering scale for plastic granules. Background Technology

[0002] Plastic granules are granular plastic raw materials made of polymer resin, used for storage, transportation and processing. After the plastic granules are processed, they need to be packed into packaging bags to facilitate subsequent handling and transportation. In order to ensure that the weight of plastic granules loaded in packaging bags of the same size is consistent, the weight of plastic granules is weighed using a weighing scale when loading them.

[0003] Existing weighing scales are equipped with a weighing box, which places the packaging bag inside. This allows the scale to weigh the plastic granules inside the bag when they are being fed. However, existing weighing scales cannot limit the inlet of the packaging bag, which can cause the inlet to shift during the feeding of plastic granules. This can lead to spillage of the plastic granules and waste. Utility Model Content

[0004] The purpose of this invention is to provide a feeding and weighing scale for plastic granules to solve the problems in the prior art.

[0005] The objective of this utility model can be achieved through the following technical solutions:

[0006] A feeding and metering scale for plastic granules includes a base, a metering box mounted on the upper right side of the base, and an adjustment mechanism provided on the outside of the metering box.

[0007] The adjustment mechanism includes a support frame disposed outside the metering box, a connecting rod installed between the outer sides of the support frame, the lower end of the support frame being fixedly connected to the base, an adjustment block being slidably connected to the outer side of the support frame, a threaded hole being symmetrically and equidistantly opened on the inner side of the upper middle part of the support frame, a threaded rod being threaded inside the threaded hole and the inner side of the adjustment block, and an electric push rod being symmetrically installed on the inner side of the middle part of the adjustment block, with a fixed clamping block installed at the output end of the electric push rod.

[0008] Preferably, a fixing frame is installed at the upper middle part of the base, and a feeding cylinder is installed on the upper right side of the fixing frame. A valve is provided at the lower end of the inside of the feeding cylinder.

[0009] Preferably, the inside of the feeding cylinder is provided with a dispersing component, which includes a dispersing frame rotatably disposed in the middle of the feeding cylinder, and a motor is installed on the top of the dispersing frame.

[0010] Preferably, the lower end of the feeding cylinder is provided with an anti-splash mechanism, which includes a telescopic tube fixedly installed at the lower end of the feeding cylinder. The lower right side of the telescopic tube is fixedly connected to the output end of an electric push rod II, and the top of the electric push rod II is fixedly connected to the lower outer side of the feeding cylinder.

[0011] Preferably, a dust suction component is provided on the left side of the feeding cylinder. The dust suction component includes a dust suction pipe fixedly connected to the upper left side of the feeding cylinder. A baffle is installed at the connection between the upper end of the dust suction pipe and the feeding cylinder. The baffle is located at the upper left end of the inside of the feeding cylinder.

[0012] Preferably, a dust collection box is installed at the lower end of the dust collection pipe, and an exhaust fan is installed on the left side of the middle part of the dust collection box.

[0013] Preferably, the inner side of the adjustment mechanism is provided with a limiting mechanism, which includes a fixed clamping block disposed inside the adjustment mechanism. The upper end of the fixed clamping block is tightly fitted with a movable clamping block, and the upper end of the movable clamping block is equipped with the output end of an electric push rod three. The top of the electric push rod three is fixedly connected to the fixed clamping block.

[0014] The beneficial effects of this utility model are:

[0015] 1. This utility model features a limiting mechanism. The limiting mechanisms are set at equal angles around the metering box, with a 90° angular spacing between each limiting mechanism. There are four sets of these limiting mechanisms. After the packaging bag is shaken open and placed inside the metering box with its inlet facing upwards, the upper side of the inlet is positioned at 90° intervals on the upper side of the fixed clamping block. A movable clamping block is set on the upper side of the fixed clamping block. When the upper side of the packaging bag is positioned at 90° intervals on the fixed clamping block, the movable clamping block can move downwards. This allows the fixed clamping block to clamp and limit the upper part of the packaging bag at 90° intervals, thus limiting the upper inlet of the packaging bag. This ensures that the inlet of the packaging bag will not shift during subsequent plastic granule feeding, effectively preventing spillage of plastic granules during feeding.

[0016] 2. This utility model features an adjustment mechanism with an electric push rod three installed at the outer end of the limiting mechanism. The electric push rod three can adjust the limiting mechanism inward and outward to facilitate limiting packaging bags of different diameters. At the same time, an adjustment block is installed on the outer side of the electric push rod three installed on the outer side of the limiting mechanism. The adjustment block can slide up and down to effectively adjust the height of the limiting mechanism, making it convenient to limit packaging bags of different lengths.

[0017] 3. This utility model incorporates an anti-splash mechanism. A telescopic tube is installed at the lower end of the feeding cylinder, and the lower end of the telescopic tube is fixedly connected to the output end of the electric push rod four. That is, when the electric push rod four is opened, the telescopic tube can be pushed to move, making it easy to move the lower end of the telescopic tube to the entrance of the packaging bag, which can effectively prevent the plastic particles from splashing when feeding. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings.

[0019] Figure 1 This is a schematic diagram of the overall perspective structure of the measuring scale of this utility model;

[0020] Figure 2 This is a perspective view of the connection structure between the adjusting mechanism and the limiting mechanism of the weighing scale of this utility model;

[0021] Figure 3 This is a perspective view of the three connections of the fixed clamping block, the movable clamping block, and the electric push rod of the measuring scale of this utility model;

[0022] Figure 4 This is a perspective view of the connection structure between the dispersing component and the anti-splash mechanism of the measuring scale of this utility model.

[0023] The attached figures are labeled as follows:

[0024] 1. Base; 2. Metering box; 3. Adjustment mechanism; 31. Support frame; 32. Adjustment block; 33. Threaded hole one; 34. Connecting rod; 35. Threaded rod; 36. Electric push rod one; 4. Fixing frame; 5. Feeding cylinder; 6. Dispersing assembly; 61. Dispersing frame; 62. Motor; 7. Anti-splash mechanism; 71. Telescopic tube; 72. Electric push rod two; 8. Dust suction assembly; 81. Dust suction pipe; 82. Baffle; 83. Dust collection box; 84. Exhaust fan; 9. Limiting mechanism; 91. Fixed clamping block; 92. Moving clamping block; 93. Electric push rod three. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0026] To address the problems existing in the prior art, this embodiment provides the following technical solution: a weighing scale for feeding plastic granules, comprising a base 1 and a weighing box 2. Adjustment mechanisms 3 are evenly spaced around the outer perimeter of the weighing box 2. A limiting mechanism 9 is installed inside the adjustment mechanism 3. The adjustment mechanism 3 can adjust the height and inward / outward movement of the limiting mechanism 9, allowing the limiting mechanism 9 to limit the entry of packaging bags of different lengths and widths. This ensures that the plastic granules accurately enter the packaging bag during feeding, preventing spillage and avoiding... This avoids material waste. In addition, the lower end of the feeding cylinder 5 is equipped with an anti-splash mechanism 7, which can move the feeding port of the feeding cylinder 5 to the lower side of the middle of the packaging bag entrance, ensuring that the plastic granules will not splash when feeding, thus avoiding material waste. Secondly, the inside of the feeding cylinder 5 is equipped with a dispersing component 6, which can ensure that the plastic granules will not clump together and cause blockage during feeding. Furthermore, the left side of the feeding cylinder 5 is equipped with a dust suction component 8, which can absorb the dust generated when the plastic granules are dispersed, preventing the dust from being inhaled by workers during feeding and affecting their health.

[0027] like Figure 1 and Figure 2 As shown, the device includes a base 1, with a measuring box 2 mounted on the upper right side of the base 1. Fixed casters are installed on the lower side of the base 1 to facilitate the movement of the entire device. Meanwhile, a weighing sensor (such as a resistance strain gauge sensor model HBM 1-SP4MC3MR) is set on the lower side of the measuring box 2 to sense the strain effect or pressure change generated by the application of gravity to the object, convert the mechanical signal into an electrical signal, and generate weight data after processing by electronic equipment.

[0028] like Figures 1-3 As shown, an adjustment mechanism 3 is provided on the outside of the metering box 2. The adjustment mechanism 3 includes a support frame 31 provided on the outside of the metering box 2. The support frame 31 is provided at equal angles around the outside of the metering box 2, and is provided in four sets. At the same time, the lower end of the support frame 31 is fixedly connected to the base 1 for limiting.

[0029] An adjusting block 32 is slidably connected to the outside of the support frame 31. A connecting rod 34 is installed between the outside of the support frame 31. A threaded hole 2 is opened inside the adjusting block 32. A threaded hole 33 is symmetrically opened at equal intervals in the upper middle part of the support frame 31. The size of the threaded hole 33 and the threaded hole 2 are the same. At the same time, the inside of the threaded hole 33 and the inside of the threaded hole 2 opened inside the adjusting block 32 can be fixed by threaded connection of thread rod 35.

[0030] In addition, a connecting rod 34 is installed between the outside of the support frame 31, which makes it easy for the four sets of adjustment blocks 32 on the outside of the support frame 31 to move and adjust together. That is, the adjustment block 32 can slide up and down on the outside of the support frame 31. After sliding, the second threaded hole opened inside it can be fitted with the first threaded hole 33 opened inside the support frame 31, and then the threaded rod 35 is inserted into the two for limiting.

[0031] Electric push rods 36 are symmetrically installed on the inner side of the middle part of the adjusting block 32. The electric push rods 36 are equipped with limiting mechanisms 9 inside. That is, each set of adjusting mechanisms 3 is equipped with a limiting mechanism 9 on its inner side, and there are four sets of limiting mechanisms 9.

[0032] The limiting mechanism 9 includes a fixed clamping block 91 disposed at the output end of the electric push rod 36. The upper end of the fixed clamping block 91 is tightly fitted with a movable clamping block 92. The contact point between the fixed clamping block 91 and the movable clamping block 92 is set in a rack shape. The upper end of the movable clamping block 92 is equipped with the output end of the electric push rod 33. The top of the electric push rod 33 is fixedly connected to the fixed clamping block 91 for limiting.

[0033] The height can be adjusted by adjusting block 32. After shaking the packaging bag open and placing it inside the metering box 2 with its inlet facing upwards, the overall height of the limiting mechanism 9 can be adjusted to accommodate packaging bags of different lengths. This allows the limiting mechanism 9 to be positioned at the upper inlet of the packaging bag. Simultaneously, the limiting mechanism 9 is installed at the output end of the electric push rod 36. When the electric push rod 36 is activated, using synchronization technology, four sets of electric push rods 36 can simultaneously push the limiting mechanism 9 connected to the output end to move inwards, positioning it outside the inlet of the packaging bag. This allows the limiting mechanism 9 to be adjusted according to packaging bags of different diameters.

[0034] After the height and width of the packaging bag are adjusted by the limiting mechanism 9, the electric push rod 93 installed on the upper side of the movable clamping block 92, which is attached to the upper end of the fixed clamping block 91, can be activated. Similarly, through synchronous control, the output end of each set of electric push rods 93 can pull the movable clamping block 92 upward, so that it is separated from the attached fixed clamping block 91.

[0035] With each set of limiting mechanisms 9 having a 90° interval, the upper sides of the packaging bag entrance can be placed into the upper side of the fixed clamping block 91 at 90° intervals. After placement, the electric push rod 3 93 can be opened, so that the output end of the electric push rod 3 93 pushes the connected movable clamping block 92 to move downward. The movable clamping block 92 can contact the packaging bag placed on the upper side of the fixed clamping block 91, thereby limiting the upper entrance of the packaging bag with the fixed clamping block 91. The connection between the fixed clamping block 91 and the movable clamping block 92 is set as a rack and pinion, which can effectively enhance the stability of fixing the entrance of the packaging bag.

[0036] like Figure 1 and Figure 4 As shown, a fixing frame 4 is installed at the upper middle part of the base 1, and a feeding cylinder 5 is installed on the upper right side of the fixing frame 4. A valve is provided at the lower end of the inside of the feeding cylinder 5. The plastic granules to be fed can be transferred from the upper right inlet of the feeding cylinder 5 into the inside of the feeding cylinder 5 through the closed cover at the upper right inlet of the feeding cylinder 5.

[0037] The inside of the feeding cylinder 5 is equipped with a dispersing component 6, which includes a dispersing frame 61 rotatably disposed in the middle of the feeding cylinder 5. A motor 62 is installed on the top of the dispersing frame 61. After the material enters the inside of the feeding cylinder 5, the motor 62 (model Z4-180-21) installed on the top of the feeding cylinder 5 can be turned on. The motor 62 can make the dispersing frame 61 connected to the output shaft rotate inside the feeding cylinder 5, thereby dispersing the agglomerated plastic particles before they are fed, and avoiding blockage caused by the agglomerated plastic particles during feeding.

[0038] The lower end of the feeding cylinder 5 is provided with an anti-splash mechanism 7. The anti-splash mechanism 7 includes a telescopic tube 71 fixedly installed at the lower end of the feeding cylinder 5. The lower right side of the telescopic tube 71 is fixedly connected to the output end of an electric push rod 72. The top of the electric push rod 72 is fixedly connected to the lower outer side of the feeding cylinder 5.

[0039] The electric push rod 72 can be opened. The output end of the electric push rod 72 can push the lower end of the telescopic tube 71 to move downward. The telescopic tube 71 will be stretched, and the lower end of the telescopic tube 71 can be moved to a position slightly below the middle of the entrance of the packaging bag.

[0040] The control panel is installed on the front side of the fixing frame 4 installed at the upper middle part of the base 1. The control panel is equipped with a PLC control system, which can realize automated weighing, material metering and equipment linkage control (such as the opening and closing control of the above-mentioned electric push rods, all of which are HB-DJ801, the opening and closing control of valves, and the opening and closing control of exhaust fan 84, etc.).

[0041] The valve inside the lower end of the feeding cylinder 5 can be opened, and the material inside the feeding cylinder 5 can be fed into the packaging bag through the telescopic tube 71. When the packaging bag is almost full, the valve is closed to stop the feeding of plastic granules. The packaging bag should not be filled too full, so as to provide some space for sealing at the entrance of the packaging bag. This can control the weight of plastic granules inside the packaging bag of the same size to be consistent, which is convenient for the subsequent calculation of the overall weight of plastic granules.

[0042] A dust collection component 8 is provided on the left side of the feeding cylinder 5. The dust collection component 8 includes a dust collection pipe 81 fixedly connected to the upper left side of the feeding cylinder 5. A baffle 82 is installed at the connection between the upper end of the dust collection pipe 81 and the feeding cylinder 5. The baffle 82 is located inside the upper left side of the feeding cylinder 5. A dust collection box 83 is installed at the lower end of the dust collection pipe 81. A fan 84 is installed on the left side of the middle part of the dust collection box 83.

[0043] When plastic granules are broken up, some dust is generated. If the dust is not treated, it will scatter everywhere when the plastic granules are fed, and may be inhaled by workers, which will affect their health. When the plastic granules are broken up, the exhaust fan 84 can be turned on. The exhaust fan 84 generates suction, which is transmitted through the dust collection box 83 to the inside of the dust collection pipe 81. The upper end of the dust collection pipe 81 is fixedly connected to the upper left side of the feeding cylinder 5, which can absorb the dust generated when the plastic granules are broken up. In addition, a baffle 82 is set at the connection between the upper end of the dust collection pipe 81 and the upper left side of the feeding cylinder 5. The baffle 82 can prevent the plastic granules from being absorbed along with the dust when the suction is applied, thus preventing the plastic granules from being accidentally inhaled.

[0044] The absorbed dust enters the interior of the dust collection box 83, which is equipped with a filter to intercept the dust. The absorbed gas can then be discharged from the left side of the exhaust fan 84.

[0045] The working principle of this weighing scale for dispensing plastic granules is as follows: Fixed casters are installed under the base 1, allowing the equipment to be pushed to its destination and then stopped. The packaging bag containing the plastic granules is then shaken open and placed into the weighing box 2 installed on the upper right side of the base 1, with the bag's inlet facing upwards. Adjustment mechanisms 3 and limiting mechanisms 9 are installed at equal angles around the perimeter of the weighing box 2. The adjustment mechanism 3 can adjust the height and inward / outward movement of the limiting mechanism 9, allowing it to be adjusted according to packaging bags of different lengths and widths. This facilitates limiting the inlet of packaging bags of varying lengths and widths, ensuring that the upper inlet of the packaging bag does not shift during subsequent plastic granule dispensing, thus guaranteeing the accuracy of the plastic granule dispensing.

[0046] After limiting the entrance of the packaging bag, the bottom of the entire packaging bag is in a very loose state. This does not mean that the bottom of the packaging bag is taut after limiting the entrance. Limiting the entrance of the packaging bag is to ensure that the material can accurately enter the inside of the packaging bag. This setting does not affect the accuracy of subsequent material feeding and weighing.

[0047] After the limit is completed, the plastic granules to be fed are conveyed into the feeding cylinder 5 through the upper right inlet. A dispersing component 6 is installed inside the feeding cylinder 5 to agitate the plastic granules, breaking up any clumps. Simultaneously, a dust-absorbing component 8 is installed on the left side of the feeding cylinder 5 to absorb the dust generated during the dispersal process, preventing dust from scattering everywhere. Once the plastic granules are completely dispersed, they pass through the feeding cylinder 5... The bottom is equipped with an anti-splash mechanism 7. The telescopic tube 71 in the anti-splash mechanism 7 is telescopic. The output end of the electric push rod 72 can be connected to the bottom of the telescopic tube 71. The output end of the electric push rod 72 can push the lower end of the telescopic tube 71 to a small distance from the bottom of the packaging bag entrance. At this time, the valve inside the lower end of the feeding cylinder 5 can be opened. The plastic particles inside the feeding cylinder 5 can be transferred to the packaging bag below through the telescopic tube 71, thus ensuring that the plastic particles will not splash when feeding.

[0048] The packaging bag is located inside the metering box 2. A weighing sensor is installed on the lower side of the metering box 2 to measure the plastic granules being fed. Secondly, the packaging bag should not be filled too full to provide some space for sealing at the entrance of the packaging bag. At the same time, it can control the weight of plastic granules inside the packaging bag of the same size to be consistent, which is convenient for the subsequent calculation of the overall weight of plastic granules. After the packaging bag is filled, it can be removed from the metering box 2.

[0049] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A weighing scale for feeding plastic granules, characterized in that: Includes a base (1), a measuring box (2) is installed on the upper right side of the base (1), and an adjustment mechanism (3) is provided on the outside of the measuring box (2); The adjustment mechanism (3) includes a support frame (31) disposed outside the metering box (2), a connecting rod (34) installed between the outside of the support frame (31), the lower end of the support frame (31) is fixedly connected to the base (1), an adjustment block (32) is slidably connected to the outside of the support frame (31), a threaded hole (33) is symmetrically and equally spaced on the inner side of the middle part of the support frame (31), a threaded rod (35) is threaded inside the threaded hole (33) and the inner side of the adjustment block (32), and an electric push rod (36) is symmetrically installed on the inner side of the middle part of the adjustment block (32), and a fixed clamping block (91) is installed at the output end of the electric push rod (36).

2. The weighing scale for feeding plastic granules according to claim 1, characterized in that, A fixing frame (4) is installed at the upper middle part of the base (1), and a feeding cylinder (5) is installed on the upper right side of the fixing frame (4). A valve is provided at the lower end of the inside of the feeding cylinder (5).

3. The weighing scale for feeding plastic granules according to claim 2, characterized in that, The feed cylinder (5) is equipped with a dispersing component (6), which includes a dispersing frame (61) rotatably disposed in the middle of the feed cylinder (5), and a motor (62) is installed on the top of the dispersing frame (61).

4. The weighing scale for feeding plastic granules according to claim 3, characterized in that, The lower end of the feed cylinder (5) is provided with an anti-splash mechanism (7). The anti-splash mechanism (7) includes a telescopic tube (71) fixedly installed at the lower end of the feed cylinder (5). The lower right side of the telescopic tube (71) is fixedly connected to the output end of an electric push rod (72). The top of the electric push rod (72) is fixedly connected to the lower outer side of the feed cylinder (5).

5. The weighing scale for feeding plastic granules according to claim 4, characterized in that, A dust suction assembly (8) is provided on the left side of the feeding cylinder (5). The dust suction assembly (8) includes a dust suction pipe (81) fixedly connected to the upper left side of the feeding cylinder (5). A baffle (82) is installed at the connection between the upper end of the dust suction pipe (81) and the feeding cylinder (5). The baffle (82) is located at the upper left end of the inside of the feeding cylinder (5).

6. The weighing scale for feeding plastic granules according to claim 5, characterized in that, The lower end of the suction pipe (81) is equipped with a dust collection box (83), and a fan (84) is installed on the left side of the middle part of the dust collection box (83).

7. The weighing scale for feeding plastic granules according to claim 1, characterized in that, The inner side of the adjustment mechanism (3) is provided with a limiting mechanism (9). The limiting mechanism (9) includes a fixed clamping block (91) provided inside the adjustment mechanism (3). The upper end of the fixed clamping block (91) is tightly fitted with a movable clamping block (92). The upper end of the movable clamping block (92) is equipped with the output end of an electric push rod three (93). The top of the electric push rod three (93) is fixedly connected to the fixed clamping block (91).

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