Quantitative material taking device

Abstract

The utility model discloses a quantitative material taking device, which belongs to the technical field of injection molding processing, and comprises a plurality of circulating feeding devices, a plurality of feeding devices and a plurality of injection molding devices, the feeding devices are connected with the injection molding devices, and the feeding device in each feeding injection molding module is connected with the plurality of circulating feeding devices; the feeding device comprises a material mixing assembly used for mixing multiple raw materials, a weighing assembly used for accurately weighing the raw materials and a material receiving assembly used for receiving the raw materials during weighing, the material mixing assembly and the circulating feeding device are both connected with the injection molding device, the weighing assembly and the material receiving assembly are both connected with the material mixing assembly, and the weighing assembly is connected with the material receiving assembly. According to the utility model, through the arrangement of the weighing assembly and the material receiving assembly, different raw materials are accurately weighed and then mixed, the previous raw material can automatically fall off when the subsequent raw materials are weighed, the structure is simple, and the metering is accurate.

Description

TECHNICAL FIELD

[0001] The utility model relates to injection molding processing technical field, concretely relates to quantitative material taking device. BACKGROUND

[0002] The main method in the production process of the storage box and other injection molding products is to add plastic particles as raw materials into the injection molding machine, and then to obtain the products by molding in the injection molding mold after heating and melting. Some products need to mix multiple raw materials during injection molding.

[0003] For example, Chinese patent application CN218399173U discloses an injection material feeding equipment, which includes a movable frame, a movable plate, and a tank. One side of the movable frame is provided with a fixed structure. The inside of the bottom end of the movable frame is provided with a movable plate. One side of the bottom end of the movable plate is installed with a material guide pipe. The top end of the tank is provided with a cover shell. The top end of the cover shell is provided with a feeding pipe. The opening and closing structure includes a hinge seat, a rotating block, a lead screw, a first mounting seat, and a second mounting seat. The hinge seat is fixed on one side of the tank. The first mounting seat is fixed on the other side of the tank. The inside of the first mounting seat is provided with a lead screw.

[0004] However, the injection material feeding equipment can only feed single raw material, cannot adapt to mixed feeding of multiple raw materials, and cannot accurately measure the raw material.

[0005] Therefore, the utility model designs a quantitative material taking device to solve the above problems. UTILITY MODEL CONTENTS

[0006] In view of the above shortcomings of the prior art, the utility model provides a quantitative material taking device.

[0007] To achieve the above purpose, the utility model realizes the following technical scheme:

[0008] A quantitative material taking device includes a circulating feeding device, an upper feeding device, and an injection molding device.

[0009] The circulating feeding device is provided with multiple upper feeding devices and injection molding devices. The upper feeding device in each upper feeding and injection molding module is connected with multiple circulating feeding devices.

[0010] The upper feeding device includes a mixing assembly for mixing multiple raw materials, a weighing assembly for accurately weighing the raw materials, and a receiving assembly for receiving the raw materials during weighing. The mixing assembly and the circulating feeding device are connected with the injection molding device. The weighing assembly and the receiving assembly are connected with the mixing assembly. The weighing assembly is connected with the receiving assembly.

[0011] Further, the circulating feeding device comprises a circulating conveying pipe and a vacuum conveyor, two ends of the circulating conveying pipe are communicated with the feeding device and are fixedly connected, the vacuum conveyor is fixedly installed outside the circulating conveying pipe and is used for driving the conveying of the raw materials in the circulating conveying pipe, and the outside of the circulating conveying pipe is connected with the plurality of mixing assemblies.

[0012] Further, the mixing assembly comprises a mixing support, a mixing bin and a plurality of mixing feeding pipes, the mixing bin is fixedly installed on the top of the mixing support, the plurality of mixing feeding pipes are fixedly installed on the top of the mixing bin, the bottoms of the plurality of mixing feeding pipes extend to the inside of the mixing bin, the tops of the plurality of mixing feeding pipes are respectively communicated with the circulating conveying pipes of the plurality of raw material circulating modules and are fixedly connected, the bottoms of the mixing feeding pipes are fixedly provided with control valves, the bottom of the mixing bin is fixedly provided with a discharging pipe, the outside of the discharging pipe of the mixing bin is provided with a control valve, and the discharging pipe of the mixing bin is connected with the injection molding device.

[0013] Further, the weighing assembly comprises a driving motor, a rotating rod, a rotating seat, a weight sensor and a pulley, the driving motor is fixedly installed on the outside of the top of the mixing bin, the output end of the driving motor extends to the inside of the mixing bin and is fixedly connected with the rotating rod, the rotating seat is fixedly installed on the outside bottom of the rotating rod, the weight sensor is fixedly installed on the top of the rotating seat, the pulley is rotatably installed on the bottom of the side, away from the rotating rod, of the rotating seat, the pulley is rollingly connected along the inner side wall of the mixing bin, the inner side wall of the mixing bin is fixedly provided with a track matched with the rolling of the pulley, and the top of the weight sensor is connected with the material receiving assembly.

[0014] Further, one end of the rotating seat is obliquely arranged, and the rotating seat is gradually inclined from bottom to top in the reverse direction of the rotating direction.

[0015] Further, the weighing assembly further comprises a push piece and two torsional springs, the push piece is rotatably installed on the bottom of the rotating rod, the push piece is located below the rotating seat, the two torsional springs are arranged between the push piece and the rotating rod, and the two ends of the torsional spring are fixedly connected with the outer wall of the push piece and the outer wall of the rotating rod.

[0016] Further, the material receiving assembly is provided with a plurality of groups, the plurality of groups of the material receiving assembly are installed in the inside of the mixing bin and correspond to the plurality of mixing feeding pipes, the plurality of groups of the material receiving assembly are distributed in an annular array around the rotating rod, the material receiving assembly comprises a material receiving frame, a material receiving cylinder and a baffle, the material receiving frame is fixedly installed in the inside of the mixing bin, the material receiving cylinder is arranged on the inside of the material receiving frame and is limitingly and slidably connected, the baffle is hingedly installed on one side of the bottom of the material receiving cylinder, and the bottom of the baffle in one group of the material receiving assembly can be abutted and connected with the weight sensor.

[0017] Further, the sliding rail and the sliding groove are arranged between the material receiving frame and the material receiving cylinder, the bottom of the sliding rail is fixedly provided with a blocking block for avoiding the material receiving cylinder from being separated from the material receiving frame.

[0018] Compared with the prior art, the utility model has the advantages that:

[0019] 1. This utility model uses a weighing component and a receiving component to accurately weigh different raw materials before mixing them. When weighing subsequent raw materials, the previous raw material will automatically fall off. The structure is simple and the measurement is accurate.

[0020] 2. This utility model, through the setting of the rotating seat, enables the weight sensor to lift the corresponding receiving cylinder for weighing when a specified raw material is required, ensuring accurate measurement. At the same time, when weighing the next raw material, the previous raw material will automatically fall to the bottom of the mixing bin for mixing. Through the setting of the paddle and torsion spring, the open baffle can be paddled while weighing to prevent raw materials from sticking together and ensure the accuracy of raw material weighing. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the quantitative feeding device of this utility model;

[0023] Figure 2 This is a perspective view of the quantitative feeding device of this utility model;

[0024] Figure 3 This is a partial three-dimensional view of the quantitative feeding device of this utility model. Figure 1 ;

[0025] Figure 4 This is a partial three-dimensional view of the quantitative feeding device of this utility model. Figure 2 .

[0026] The labels in the diagram represent:

[0027] 3. Circulating feeding device; 31. Circulating conveying pipe; 32. Vacuum conveyor; 4. Feeding device; 41. Mixing assembly; 411. Mixing support; 412. Mixing hopper; 413. Mixing feed pipe; 42. Weighing assembly; 421. Drive motor; 422. Rotating rod; 423. Rotating seat; 424. Weight sensor; 425. Pulley; 426. Paddle; 427. Torsion spring; 43. Receiving assembly; 431. Receiving rack; 432. Receiving cylinder; 433. Baffle; 5. Injection molding device; 51. Injection molding machine; 52. Feeding pipe. Detailed Implementation

[0028] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0029] Embodiment one: in some embodiments, referring to the drawings of the specification Figures 1-4 A quantitative material taking device, comprising a plurality of circulating feeding devices 3, a feeding device 4 and an injection molding device 5, the feeding device 4 and the injection molding device 5 are connected, and each feeding device 4 is connected with the plurality of circulating feeding devices 3.

[0030] The feeding device 4 comprises a mixing assembly 41 for mixing multiple raw materials, a weighing assembly 42 for accurately weighing the raw materials and a receiving assembly 43 for receiving the raw materials during weighing, the mixing assembly 41 is connected with the circulating feeding device 3 and the injection molding device 5, the weighing assembly 42 and the receiving assembly 43 are connected with the mixing assembly 41, and the weighing assembly 42 is connected with the receiving assembly 43.

[0031] When the quantitative material taking device is normally used, the dried raw materials are circulated and conveyed through the circulating feeding device 3, the weighing assembly 42 is started, the weighing assembly 42 is moved to below the corresponding receiving assembly 43, and then the raw materials in different groups of the circulating feeding device 3 are weighed in turn, the weighed raw materials are mixed in the mixing assembly 41 and conveyed to the injection molding device 5 for injection molding, and the unused raw materials in the circulating feeding device 3 are circulated back to the feeding equipment for continuous use; through the arrangement of the plurality of circulating feeding devices 3 for preferentially feeding to the closer feeding device 4, when the plurality of feeding devices 4 need raw materials, the closer circulating feeding device 3 is taken and weighed first, so that the situation that the raw materials in part of the circulating feeding devices 3 are insufficient and the raw materials in other circulating feeding devices 3 are excessive is avoided when the plurality of feeding devices 4 take the raw materials from the same circulating feeding device 3. Through the arrangement of the weighing assembly 42 and the receiving assembly 43, different raw materials are accurately weighed and then mixed, and the previous raw materials automatically fall when the subsequent raw materials are weighed, so that the structure is simple and the measurement is accurate.

[0032] In some embodiments, the circulating feeding device 3 comprises a circulating conveying pipe 31 and a vacuum conveyor 32, both ends of the circulating conveying pipe 31 are in communication with the feeding equipment and are fixedly connected, the vacuum conveyor 32 is fixedly installed outside the circulating conveying pipe 31 and is used for driving the raw material conveying in the circulating conveying pipe 31, and the outside of the circulating conveying pipe 31 is connected with the mixing assembly 41 of the plurality of feeding and injection molding modules.

[0033] In some embodiments, the mixing assembly 41 comprises a mixing support 411, a mixing bin 412 and a plurality of mixing feeding pipes 413, the mixing bin 412 is fixedly installed on the top of the mixing support 411, the plurality of mixing feeding pipes 413 are fixedly installed on the top of the mixing bin 412, the bottoms of the plurality of mixing feeding pipes 413 extend through to the inside of the mixing bin 412, the tops of the plurality of mixing feeding pipes 413 are respectively and fixedly connected with the circulating conveying pipes 31 of the plurality of groups of raw material circulating modules, the bottoms of the mixing feeding pipes 413 are fixedly provided with control valves, the bottom of the mixing bin 412 is fixedly provided with a discharging pipe, the outside of the discharging pipe of the mixing bin 412 is provided with a control valve, and the discharging pipe of the mixing bin 412 is connected with the injection molding device 5.

[0034] In some embodiments, the weighing assembly 42 comprises a driving motor 421, a rotating rod 422, a rotating seat 423, a weight sensor 424 and a pulley 425, the driving motor 421 is fixedly installed on the outside of the top of the mixing bin 412, the output end of the driving motor 421 extends through to the inside of the mixing bin 412 and is fixedly connected with the rotating rod 422, the rotating seat 423 is fixedly installed on the outside bottom of the rotating rod 422, the weight sensor 424 is fixedly installed on the top of the rotating seat 423, and the pulley 425 is rotatably installed on the bottom of the side of the rotating seat 423 away from the rotating rod 422, the pulley 425 is rollingly connected along the inner side wall of the mixing bin 412, the inner side wall of the mixing bin 412 is fixedly provided with a track matched with the rolling of the pulley 425, and the top of the weight sensor 424 is connected with the material receiving assembly 43.

[0035] In some embodiments, one end of the rotating seat 423 is obliquely arranged, and the rotating seat 423 gradually inclines from bottom to top in the opposite direction of the rotating direction. When viewed from the top of the mixing bin 412, the rotating seat 423 rotates in the clockwise direction.

[0036] In some embodiments, the weighing assembly 42 further comprises a push piece 426 and two torsional springs 427, the push piece 426 is rotatably installed on the bottom of the rotating rod 422, the push piece 426 is located below the rotating seat 423, the two torsional springs 427 are arranged between the push piece 426 and the rotating rod 422, and the two ends of the torsional spring 427 are respectively fixedly connected with the outer wall of the push piece 426 and the outer wall of the rotating rod 422.

[0037] Preferably, the material receiving assembly 43 is provided in multiple groups, the multiple groups of material receiving assemblies 43 are installed in the inside of the mixing bin 412 corresponding to the plurality of mixing feeding pipes 413, and the multiple groups of material receiving assemblies 43 are distributed in an annular array around the rotating rod 422. The material receiving assembly 43 comprises a material receiving frame 431, a material receiving cylinder 432 and a baffle 433, the material receiving frame 431 is fixedly installed in the inside of the mixing bin 412, the material receiving cylinder 432 is arranged in the inside of the material receiving frame 431 and is limitingly and slidably connected, the baffle 433 is hingedly installed on one side of the bottom of the material receiving cylinder 432, and the bottom of the baffle 433 in one group of material receiving assemblies 43 can be in abutting connection with the weight sensor 424.

[0038] A sliding rail is arranged on the inner side wall of the material receiving frame 431, and a sliding groove is arranged on the outer wall of the material receiving cylinder 432.

[0039] In some embodiments, the injection molding device 5 comprises an injection molding machine 51 and a feeding pipe 52, one end of the feeding pipe 52 is fixedly connected with the discharge pipe of the mixing bin 412, and the other end of the feeding pipe 52 is fixedly connected with the feeding port of the injection molding machine 51.

[0040] When the quantitative material taking device is normally used, the raw materials are conveyed into the circulating conveying pipe 31 by starting the feeding device, and the raw materials in the circulating conveying pipe 31 are conveyed by starting the vacuum conveyor 32; the driving motor 421 is started, the driving motor 421 drives the rotating rod 422 and the rotating seat 423 to rotate, the rotating seat 423 pushes the baffle 433 to gradually close the bottom opening of the corresponding material receiving cylinder 432, when the baffle 433 is completely closed, the baffle 433 is gradually moved upward along the inclined side of the rotating seat 423, the baffle 433 drives the material receiving cylinder 432 to slide upward along the material receiving frame 431, at this time, the driving motor 421 is closed, and the weight of the material receiving cylinder 432 and the baffle 433 is completely sensed by the weight sensor 424; the control valve of the upper mixing feeding pipe 413 is started, the upper mixing feeding pipe 413 corresponding to the raw materials in the circulating conveying pipe 31 is conveyed into the material receiving cylinder 432 for weighing, and the control valve of the mixing feeding pipe 413 is closed after the weight sensor 424 detects the specified weight; the driving motor 421 is started to drive the rotating seat 423 to continue to rotate, when the rotating seat 423 is separated from the baffle 433, the baffle 433 is opened, and the raw materials in the material receiving cylinder 432 fall into the bottom of the mixing bin 412; the above steps are repeated to complete the weighing and mixing of multiple raw materials, and at the same time, the rotating rod 422 drives the paddle 426 to rotate, and the paddle 426 drives the baffle 433 in the opened state to shake, so that the raw materials adhered to the baffle 433 are avoided; the mixed raw materials are conveyed into the injection molding machine 51 through the feeding pipe 52 for injection molding.

[0041] The weight sensor 424 lifts the corresponding material receiving cylinder 432 for weighing when the specified raw materials are needed, and the measurement is accurate, and at the same time, the previous raw materials are automatically dropped into the bottom of the mixing bin 412 for mixing when the next raw materials are weighed; the paddle 426 and the torsional spring 427 are arranged, so that the baffle 433 in the opened state can be stirred during weighing, the raw materials are prevented from adhering, and the accuracy of raw material weighing is ensured.

[0042] The above examples are only used to illustrate the technical solutions of the present application, and are not intended to limit them; although the present application has been described in detail with reference to the foregoing examples, those skilled in the art should understand that the technical solutions recorded in the foregoing examples can still be modified, or some technical features therein can be replaced by equivalents; and these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A dosing device comprising a circulating feeder device (3), characterised in that: It also includes feeding device (4) and injection molding device (5), the circulating feeding device (3) is provided with multiple, feeding device (4) and injection molding device (5) are connected, and the feeding device (4) in each feeding injection molding module is connected with multiple circulating feeding device (3); The feeding device (4) includes a mixing assembly (41) for mixing multiple raw materials, a weighing assembly (42) for accurately weighing the raw materials, and a receiving assembly (43) for receiving the raw materials during weighing, the mixing assembly (41) is connected with the circulating feeding device (3) and the injection molding device (5), the weighing assembly (42) and the receiving assembly (43) are connected with the mixing assembly (41), and the weighing assembly (42) is connected with the receiving assembly (43).

2. The apparatus of claim 1, wherein The circulating feeding device (3) comprises a circulating conveying pipe (31) and a vacuum conveyor (32), both ends of the circulating conveying pipe (31) are in communication with the feeding device and are fixedly connected, the vacuum conveyor (32) is fixedly installed outside the circulating conveying pipe (31) and is used to drive the raw material conveying in the circulating conveying pipe (31), and the outside of the circulating conveying pipe (31) is connected with multiple mixing assemblies (41).

3. The apparatus of claim 2, wherein, The mixing assembly (41) comprises a mixing support (411), a mixing bin (412) and multiple mixing feeding pipes (413), the mixing bin (412) is fixedly installed on the top of the mixing support (411), multiple mixing feeding pipes (413) are fixedly installed on the top of the mixing bin (412), the bottoms of the multiple mixing feeding pipes (413) extend through to the inside of the mixing bin (412), the tops of the multiple mixing feeding pipes (413) are in communication with the circulating conveying pipes (31) of multiple raw material circulating modules and are fixedly connected, a control valve is fixedly arranged at the bottom of the mixing feeding pipe (413), a discharge pipe is fixedly arranged at the bottom of the mixing bin (412), a control valve is arranged outside the discharge pipe of the mixing bin (412), and the discharge pipe of the mixing bin (412) is connected with the injection molding device (5).

4. The metered dosing device of claim 3, wherein, The weighing assembly (42) comprises a driving motor (421), a rotating rod (422), a rotating seat (423), a weight sensor (424) and a pulley (425), the driving motor (421) is fixedly installed on the top outside of the mixing bin (412), the output end of the driving motor (421) extends through to the inside of the mixing bin (412) and is fixedly connected with the rotating rod (422), the rotating seat (423) is fixedly installed on the outside bottom of the rotating rod (422), the weight sensor (424) is fixedly installed on the top of the rotating seat (423), the pulley (425) is rotatably installed on the bottom of the side, away from the rotating rod (422), of the rotating seat (423), the pulley (425) is rollingly connected along the inner side wall of the mixing bin (412), a track matched with the pulley (425) is fixedly arranged on the inner side wall of the mixing bin (412), and the weight sensor (424) is connected with the receiving assembly (43).

5. The metered dosing device of claim 4, wherein, One end of the rotating seat (423) is obliquely arranged, and the rotating seat (423) is gradually inclined from bottom to top in the opposite direction of the rotating direction.

6. The apparatus of claim 4 wherein, The weighing assembly (42) further comprises a dial piece (426) and two torsional springs (427), the dial piece (426) is rotatably installed at the bottom of the rotating rod (422), the dial piece (426) is located below the rotating seat (423), and the two torsional springs (427) are arranged between the dial piece (426) and the rotating rod (422), and the two ends of the torsional spring (427) are fixedly connected with the outer wall of the dial piece (426) and the outer wall of the rotating rod (422) respectively.

7. The apparatus of claim 6, wherein, The material receiving assembly (43) is provided in multiple groups, a plurality of groups of the material receiving assembly (43) are installed in the mixing bin (412) corresponding to a plurality of mixing feeding pipes (413), the plurality of groups of the material receiving assembly (43) are distributed in an annular array around the rotating rod (422), the material receiving assembly (43) comprises a material receiving frame (431), a material receiving cylinder (432) and a baffle (433), the material receiving frame (431) is fixedly installed in the mixing bin (412), the material receiving cylinder (432) is located in the inner side of the material receiving frame (431) and is limitingly and slidingly connected, the baffle (433) is hingedly installed at one side of the bottom of the material receiving cylinder (432), and the bottom of the baffle (433) in one group of the material receiving assembly (43) can be in abutting connection with the weight sensor (424).

8. The metered dosing device of claim 7, wherein, A sliding rail and a sliding groove are arranged between the material receiving frame (431) and the material receiving cylinder (432), and a blocking block is fixedly arranged at the bottom of the sliding rail, so that the material receiving cylinder (432) is prevented from being separated from the material receiving frame (431).

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