Packaging equipment and packaging production line for silicon material boxing

Abstract

The utility model relates to packaging equipment and a packaging production line for silicon material boxing. The packaging equipment for silicon material boxing comprises a coarse counterweight feeder, a fine counterweight feeder arranged on a downstream process of the coarse counterweight feeder, and a weighing conveyor used for connecting the coarse counterweight feeder and the fine counterweight feeder, the coarse counterweight feeder comprises a first rack, a first stock bin, a distributor, a vibration feeder and an overflow pipeline. According to the silicon material packaging machine, the reliability of the packaging weight of silicon materials can be guaranteed while the packaging speed is guaranteed through the two-time counter weight of the coarse counter weight and the fine counter weight and the three-stage discharging mode. And during rough weight balancing, the silicon material can be discharged to the maximum extent without considering the weighing precision requirement, so that the discharging efficiency is ensured. During fine weight balancing, the weight of the material box is close to the weight required by packaging at the moment, and at the moment, the set weight is reached through small-flow discharging, so that it can be guaranteed that the weighing precision of the material box is very high, and meanwhile the efficiency of the whole weighing process is very high.

Description

Technical Field

[0001] The utility model relates to the technical field of packaging, in particular to packaging equipment and a packaging production line for silicon material packaging. Background Art

[0002] In the process of silicon material production, the weight of each portion of silicon material needs to be controlled and unified, and then packaged. At present, most manufacturers still manually bag the materials, and manually add weight and pack them. In the prior art, there is also a method of controlling the packaging weight by cooperating with an automatic feeder and a weighing device. However, there is a delay between the weighing device receiving the weight signal and feeding it back to the automatic feeder to stop feeding, which causes the final package weight to deviate. In particular, the faster the material feeding speed, the greater the deviation, and the packaging weight of the silicon material cannot be guaranteed to be controllable. Utility Model Content

[0003] Based on this, it is necessary to provide a packaging equipment and packaging production line for silicon material boxing to address the problems of large weighing error and low packaging efficiency of silicon material packaging.

[0004] A packaging device for packing silicon materials into boxes, comprising a coarse weight feeder, a fine weight feeder arranged at a downstream process of the coarse weight feeder, and a weighing conveyor for connecting the coarse weight feeder and the fine weight feeder;

[0005] The coarse weight feeder is used to feed large materials into the material box, and the coarse weight feeder comprises:

[0006] First rack;

[0007] A first silo mounted on the top of the first frame;

[0008] A vibrating feeder, which is mounted on the first frame, wherein a feeding end of the vibrating feeder is connected to a discharging end of the first silo, and the discharging end is arranged toward the weighing conveyor, and the discharging end of the vibrating feeder is used to output large materials;

[0009] The precision weight feeder is used to put medium and small materials into the material box, and the precision weight feeder comprises:

[0010] Second rack;

[0011] a second silo mounted on top of the second frame;

[0012] A primary feeder, which is mounted on the second frame, wherein a feeding end of the primary feeder is connected to a discharging end of the second silo;

[0013] A secondary feeder is installed on the second frame, and two of them are provided. The conveying channels of the two secondary feeders are respectively set to be one wide and one narrow, and the feeding ends of the two secondary feeders are connected to the discharging end of the primary feeder, and the discharging ends are both arranged toward the weighing conveyor, wherein the discharging end of the wider secondary feeder is used for discharging medium materials, and the material trough of the narrower secondary feeder is set to be V-shaped, and its discharging end is used for discharging small materials.

[0014] As a preferred example, the interior of the first silo is provided with two unconnected chambers, and the top is provided with a distributor for distributing materials to the two chambers; an overflow pipe is also installed on the first frame, and the feed end of the overflow pipe is connected to the discharge end of one of the chambers.

[0015] As a preferred example, the distributor comprises:

[0016] A material distribution hopper, which is installed on the top of the first silo through a sliding guide rail, and the discharge port of the material distribution hopper is connected to one of the silos;

[0017] A driving member, a fixed end of which is mounted on the first frame, and a movable end of which is fixedly connected to the sub-hopper, and is used to drive the sub-hopper to slide on the top of the first silo;

[0018] The material level sensor is used to detect the material level height information in the chamber and control the driving member to work according to the material level height information.

[0019] As a preferred example, a dust cover is provided on the top of the first silo, and a dust curtain is provided on the dust cover; a dust-proof soft cover is provided between the first silo and the chamber.

[0020] As a preferred example, a V-shaped guide plate is provided at the discharge end of the first-stage feeder, and a wide and a narrow feeding channel are formed between the guide plate and the material trough of the first-stage feeder, wherein the wider feeding channel is connected to the wider second-stage feeder, and the narrower feeding channel is connected to the narrower second-stage feeder.

[0021] As a preferred example, the coarse weight feeder and the fine weight feeder are both provided with a plurality of negative pressure air suction ports, which are used to recover the generated dust in time.

[0022] As a preferred example, all parts in contact with the material are provided with polyurethane coating.

[0023] A packaging production line for silicon material boxing, which applies the silicon material boxing packaging equipment as described above, wherein the packaging equipment is provided in two groups, and a material elevator is provided upstream of the two groups of packaging equipment, which is used to feed materials into the coarse counterweight feeder; a weight rechecking machine and a rejecting machine are provided downstream in sequence, which are used to reject material boxes with filling weights that do not meet the standards; the two groups of packaging equipment are also commonly connected upstream with a transfer conveyor, which is used to transport empty material boxes to the packaging equipment.

[0024] The beneficial effects of the utility model are:

[0025] 1. The utility model can ensure the reliability of silicon material packaging weight while ensuring packaging speed through two weighting methods of rough weighting and fine weighting and three-level unloading. During rough weighting, silicon material can be unloaded to the maximum without considering the weight weighing accuracy requirements to ensure unloading efficiency. During fine weighting, the material box is very close to the weight required for packaging. At this time, a small flow rate is unloaded until the set weight is reached, thereby ensuring that the material box weighing reaches a very high accuracy, and the efficiency of the entire weighing process is also very high.

[0026] 2. Compared with manual packing and the prior art, the utility model first saves manpower and avoids the uncontrollability caused by the working status of workers. Secondly, the weighing process is fully automated, which greatly improves work efficiency and further improves the reliability of material weight. At the same time, since there is a certain amount of dust at the silicon material outlet, the packaging production line can avoid the health risks of workers being exposed to it for a long time. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the three-dimensional structure of the coarse weight feeder;

[0028] Figure 2 for Figure 1 A schematic diagram of the cross-sectional structure of;

[0029] Figure 3 for Figure 1 Schematic diagram of the partial structure of the middle distributor;

[0030] Figure 4 It is a schematic diagram of the three-dimensional structure of the precision weight feeder;

[0031] Figure 5 for Figure 4 Schematic diagram of the connection structure between the first-stage feeder and the second-stage feeder;

[0032] Figure 6 This is a schematic diagram of the layout of the packaging production line.

[0033] In the figure: coarse weight feeder 1, first frame 11, first silo 12, distributor 13, distributor hopper 131, sliding guide rail 132, driving member 133, vibrating feeder 14, overflow pipe 15, fine weight feeder 2, second frame 21, second silo 22, primary feeder 23, secondary feeder 24, guide plate 25, weighing conveyor 3, dust cover 4, negative pressure suction port 5, material elevator 6, weight re-inspection machine 7, rejector 8, transfer conveyor 9. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0035] It should be noted that when a component is referred to as being "mounted on" another component, it may be directly on the other component or there may be a central component. When a component is considered to be "set on" another component, it may be directly set on the other component or there may be a central component at the same time. When a component is considered to be "fixed to" another component, it may be directly fixed on the other component or there may be a central component at the same time.

[0036] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0037] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "or / and" used herein includes any and all combinations of one or more related listed items.

[0038] A packaging device for packing silicon materials into boxes comprises a coarse weight feeder, a fine weight feeder arranged at a downstream process of the coarse weight feeder, and a weighing conveyor used to connect the coarse weight feeder and the fine weight feeder to transport and weigh material boxes.

[0039] Please refer to Figure 1 and Figure 2 The coarse weight feeder 1 is used to put large materials (silicon materials with a large discharge flow rate per unit time) into the material box. In this embodiment, the coarse weight feeder 1 includes a first frame 11, a first silo 12, a distributor 13, a vibrating feeder 14 and an overflow pipe 15. The first frame 11 is a metal bracket fixed to the ground, serving as the main body of the coarse weight feeder 1, for installing various components. The first silo 12 is installed on the top of the first frame 11, and the interior of the first silo 12 is provided with two unconnected chambers: a first chamber and a second chamber. As shown in FIG. Figure 3 As shown, the distributor 13 includes a distributor hopper 131 and a driving member 133. The distributor hopper 131 is horizontally mounted on the top of the first silo 12 through a sliding guide rail 132, and spans over the two chambers. The driving member 133 can be an electric cylinder, a pneumatic cylinder or an oil cylinder. The fixed end of the driving member 133 is mounted on the first frame 11, and the movable end is fixedly connected to one side of the distributor hopper 131. The distributor hopper 131 is driven to slide on the top of the first silo 12 by the movement of the movable end, so that the bottom discharge port of the distributor hopper 131 is adjusted between the two chambers. The silicon material enters different chambers through the position adjustment of the distributor hopper 131. The vibrating feeder 14 is mounted on the first frame 11, and its feed end is connected to the discharge end of the first chamber. The silicon material of the upstream process is fed into the first chamber through the material hoist 6. The first chamber is the chamber where the silicon material initially enters. The discharge end of the vibrating feeder 14 is arranged toward the weighing conveyor 3. The vibrating feeder 14 can use the GZ series electromagnetic vibrating feeder commercially available from Nantong Xijie Vibration Machinery Manufacturing Co., Ltd. The weighing conveyor 3 is a non-standard part, and a commercially available product model can also be used. It can weigh the material box while conveying it, and no further details are given here. The vibrating feeder 14 is used to evenly and continuously feed the silicon material in the first chamber into the material box on the weighing conveyor 3 in large quantities and quickly. At this time, the silicon material can be fed into the material box at the maximum speed without worrying about incorrect packaging and weighing.

[0040] On the other hand, a material level sensor is fixedly connected to the inner wall of the first chamber, which is used to detect the material level height information in the first chamber. When the material level sensor detects that the material level in the first chamber is too high, it transmits the material level height information to the central control machine, and controls the drive member 133 to start, and moves the sub-hopper 131 to communicate with the second chamber. The discharge end of the second chamber is connected to the overflow pipe 15, and the discharge end of the overflow pipe 15 is connected to the temporary turnover box. Through the above settings, when the upstream or downstream equipment is overhauled or fails, the equipment can still operate and wait for the relevant equipment to be repaired, thereby facilitating the automated design and automated operation of the entire packaging process.

[0041] Please refer to Figure 4The fine weight feeder 2 is used to put medium materials (silicon materials with medium material discharge flow rate per unit time) and small materials (silicon materials with small material discharge flow rate per unit time) into the material box. In this embodiment, the fine weight feeder 2 includes a second frame 21, a second silo 22, a primary feeder 23 and a secondary feeder 24. The second frame 21 is also a metal bracket and is fixed to the ground. It serves as the main body of the fine weight feeder 2 and is used to install various components. The second silo 22 is installed on the top of the second frame 21. The primary feeder 23 is also installed on the second frame 21, and the feeding end is connected to the discharging end of the second silo 22. What is special is the secondary feeder 24, two of which are provided. As Figure 5 As shown. The conveying channels of the two secondary feeders 24 are respectively set to be one wide and one narrow, and the feeding ends of the two secondary feeders 24 are connected to the discharging end of the primary feeder 23. In order to facilitate the two secondary feeders 24 to receive materials, a guide plate 25 is provided at the discharging end of the primary feeder 23, and a wide and a narrow feeding channel is formed between the guide plate 25 and the material trough of the primary feeder 23. Silicon materials are distributed to the two secondary feeders 24 for receiving materials through feeding channels of different widths. Among them, more silicon materials are distributed on the wider secondary feeder 24, and the silicon materials are fed from the secondary feeder 24 into the material box on the weighing conveyor 3 at a medium speed (most of the silicon materials have been filled in the material box through the rough counterweight feeder 1). The silicon material distributed on the narrower secondary feeder 24 is less, and the silicon material is fed from the secondary feeder 24 into the material box on the weighing conveyor 3 at a lower speed (the material box is refilled with some silicon material through the wider secondary feeder 24) until the weight of the material box reaches the standard packaging weight. Furthermore, the material trough of the narrower secondary feeder 24 is set in a V shape. The silicon material entering the secondary feeder 24 gathers at the bottom of the V shape and is continuously fed. Since the feeding flow of the narrower secondary feeder 24 is very small at this time, a very high weighing accuracy is achieved.

[0042] In this embodiment, the primary feeder 23 and the secondary feeder 24 can both use the same type of equipment as the vibrating feeder 14, or other commercially available equipment of suitable models, as long as the material can be uniformly discharged. An adjusting gate is also provided on the trough on the vibrating feeder 14 and the primary feeder 23. It can manually adjust the passing area of ​​the cross section of the trough here by bolts, thereby adjusting the discharge speed of the silicon material. In this embodiment, due to the special properties of the silicon material, it is susceptible to metal contamination. Therefore, a polyurethane coating is provided at all parts contacting the silicon material. The parts include but are not limited to the inner wall of the silo and the vibrating feeder 14. Considering the dust pollution problem, a cover is provided on the coarse counterweight feeder 1 and the fine counterweight feeder 2, and a plurality of negative pressure suction ports 5 are provided on the cover. The air inlet ends of the plurality of negative pressure suction ports 5 are preferably aligned with places where dust is easily generated, such as the junction of the primary feeder 23 and the secondary feeder 24, the discharge end of the vibrating feeder 14, the discharge end of the secondary feeder 24, etc. The negative pressure air suction port 5 is connected to the negative pressure pipe when in use, so that the generated dust can be removed in time to ensure the cleanliness of the equipment and the hygiene of the workshop. At the same time, a dust cover 4 is arranged on the top of the first silo 12. A dust curtain is arranged on the dust cover 4. A dustproof soft cover and other measures are arranged between the first silo 12 and the chamber, all of which are used to minimize the release of dust and protect the working environment.

[0043] Compared with traditional manual packaging and existing technologies, the packaging equipment for silicon material packaging can ensure the reliability of silicon material packaging weight while ensuring packaging speed by using the coarse and fine weight feeders 2 for two weight balances. The weighing error of the material box of the packaging equipment is small, and manpower is saved, which improves work efficiency. The packaging equipment for silicon material packaging is more suitable for automated production.

[0044] See also Figure 6 In another embodiment, based on the packaging equipment for silicon material boxing, this embodiment also proposes a packaging production line for silicon material boxing. The packaging production line also includes a material elevator 6, a weight re-inspection machine 7, a rejecting machine 8 and a transfer conveyor 9. The packaging production line is based on the above-mentioned packaging equipment and is provided with two groups of packaging equipment. The upstream of the two groups of packaging equipment are connected to the material elevator 6, and the material is fed into the first silo 12 of the coarse counterweight feeder 1 through the material elevator 6. The weight re-inspection machine 7 and the rejecting machine 8 are sequentially arranged downstream of each group of packaging equipment. That is, the material elevator 6, the packaging equipment, the weight re-inspection machine 7 and the rejecting machine 8 form two sub-production lines. In this embodiment, the transfer conveyor 9 includes a vertical conveyor line and a horizontal conveyor line. The vertical conveyor line is arranged and extends at the unloading end of the two coarse counterweight feeders, and is connected to the weighing conveyor 3. One end of the horizontal conveyor line is connected to the vertical conveyor line, and the other end is the place where the empty material box is placed (in this embodiment, it is Figure 6In the process from the fine weight feeder 2 to the weight rechecking machine 7 and the rejecting machine 8, the material box is also transported by the transfer conveyor 9 until it reaches the finished product outlet (in this embodiment, Figure 6 B in the figure). Among them, a right-angle turn line changing mechanism is provided between the horizontal conveyor line and the vertical conveyor line, and between the vertical conveyor line and the weighing conveyor 3, which is a common method used by those skilled in the art and will not be described in detail here. By setting up the packaging production line for the silicon material box, manpower is first saved, and the whole is operated automatically by the equipment. At the same time, combined with the packaging equipment, while ensuring the reliability of the weighing weight, the packaging speed can be further improved and the packaging efficiency can be accelerated.

[0045] In another embodiment, based on the silicon material packaging equipment and the silicon material packaging production line, this embodiment also proposes a silicon material packaging method, which includes the following steps:

[0046] Step S1, the empty material box (lined with polyurethane coating) is first transferred to the vertical conveyor line through the horizontal conveyor line, and transported to the discharge end of each coarse counterweight feeder 1 by the vertical conveyor line. At the same time, the material hoist 6 puts the initial silicon material into the first silo 12 in the coarse counterweight feeder 1.

[0047] Step S2, the initial silicon material is fed evenly by the coarse weight feeder 1, and the large materials in the initial silicon material fall into the material box at the lower discharge end. When the weight of the material box reaches the first set value after being weighed by the weighing conveyor 3, the coarse weight feeder 1 stops feeding, and then the weighing conveyor 3 sends the material box to the fine weight feeder 2.

[0048] Step S3, the silicon material in the second silo 22 in the precision weight feeder 2 is also fed by the material hoist 6, and the materials in the material hoist 6 are all fine materials (i.e., uniform fine-grained silicon materials), and only fine materials exist in the second silo 22. The silicon material can also be filled in advance, and the filled silicon material is pre-stored in the second silo 22, and a material level sensor is provided in the second silo 22. When the material level sensor detects that the silicon material in the second silo is insufficient, it reminds the staff to replenish new silicon material in time, and the material box with large materials enters the precision weight feeder 2. The silicon material in the second silo 22 falls to the secondary feeder 24. First, the wider secondary feeder 24 pours the medium material into the material box. When the weighing conveyor 3 detects that the weight of the material box reaches the second set value, the wider secondary feeder 24 stops, and the narrower secondary feeder 24 starts to run, and continues to pour small materials into the material box until the weighing conveyor 3 detects that the weight of the material box reaches the third set value. The third set value is the required packaging weight.

[0049] Step S4: The material box that reaches the third set value continues to move on the weighing conveyor 3 to the weight rechecking machine 7 for weight rechecking. The weight rechecking machine 7 measures the weight of the material box again, and the material box with qualified weight continues to move to the finished product outlet. When the material box with unqualified weight passes through the rejecting machine 8, the rejecting machine 8 is activated to remove the unqualified material box from the weighing conveyor 3 for rejection.

[0050] In this embodiment, the packaging method of the silicon material box solves the problem that the traditional silicon material block is large and the weighing error is large by means of two weighting methods of rough weighting and fine weighting and three-level unloading. During rough weighting, the silicon material can be unloaded to the maximum without considering the weight weighing accuracy requirements, thereby ensuring the unloading efficiency. During fine weighting, the material box is very close to the weight required for packaging. At this time, a small flow rate is unloaded until the set weight is reached, thereby ensuring that the material box weighing reaches a very high accuracy, and the efficiency of the entire weighing process is also very high.

[0051] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0052] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A packaging device for silicon material packaging, characterized in that: It comprises a coarse weight feeder (1), a fine weight feeder (2) arranged in a downstream process of the coarse weight feeder (1), and a weighing conveyor (3) used for connecting the coarse weight feeder and the fine weight feeder (2); The coarse weight feeder (1) is used to feed large materials into a material box. The coarse weight feeder (1) comprises: A first frame (11); A first silo (12) mounted on the top of the first frame (11); a vibrating feeder (14) mounted on the first frame (11), wherein a feeding end of the vibrating feeder (14) is connected to a discharging end of the first silo (12), and the discharging end is arranged toward the weighing conveyor (3), and the discharging end of the vibrating feeder (14) is used to output large materials; The precision weight feeder (2) is used to put medium and small materials into the material box, and the precision weight feeder (2) comprises: A second frame (21); A second silo (22) mounted on the top of the second frame (21); A primary feeder (23) mounted on the second frame (21), wherein a feeding end of the primary feeder (23) is connected to a discharging end of the second silo (22); A secondary feeder (24) is mounted on the second frame (21), and two of the secondary feeders (24) are provided. The conveying channels of the two secondary feeders (24) are respectively set to be one wide and one narrow, and the feeding ends of the two secondary feeders (24) are both connected to the discharging end of the primary feeder (23), and the discharging ends are both arranged toward the weighing conveyor (3), wherein the discharging end of the wider secondary feeder (24) is used for discharging medium materials, and the material trough of the narrower secondary feeder (24) is set to be V-shaped, and the discharging end is used for discharging small materials.

2. The silicon material packaging equipment according to claim 1, characterized in that: The first silo (12) is provided with two unconnected chambers inside, and a distributor (13) is provided on the top for distributing materials to the two chambers; an overflow pipe (15) is also installed on the first frame (11), and the feed end of the overflow pipe (15) is connected to the discharge end of one of the chambers.

3. The silicon material packaging equipment according to claim 2, characterized in that: The distributor (13) comprises: A material distribution hopper (131) is installed on the top of the first silo (12) via a sliding guide rail (132), and the discharge port of the material distribution hopper (131) is connected to one of the silos; A driving member (133), a fixed end of which is mounted on the first frame (11), and a movable end of which is fixedly connected to the material distribution hopper (131), and is used to drive the material distribution hopper (131) to slide on the top of the first silo (12); A material level sensor is used to detect material level height information in the chamber and control the driving member (133) to work according to the material level height information.

4. The silicon material packaging equipment according to claim 2, characterized in that: A dust cover (4) is arranged on the top of the first material bin (12), and a dust curtain is arranged on the dust cover (4); a dust-proof soft cover is arranged between the first material bin (12) and the bin chamber.

5. The silicon material packaging equipment according to claim 1, characterized in that: A V-shaped guide plate (25) is provided at the discharge end of the primary feeder (23), and a wide and a narrow material discharge channel are formed between the guide plate (25) and the material trough of the primary feeder (23), wherein the wider material discharge channel is connected to the wider secondary feeder (24), and the narrower material discharge channel is connected to the narrower secondary feeder (24).

6. The silicon material packaging equipment according to claim 1, characterized in that: The coarse weight feeder (1) and the fine weight feeder (2) are both provided with a plurality of negative pressure air suction ports (5) for recovering the generated dust in a timely manner.

7. The silicon material packaging equipment according to claim 1, characterized in that: All parts in contact with the material are provided with polyurethane coating.

8. A packaging production line for silicon material packaging, which uses the packaging equipment for silicon material packaging as claimed in any one of claims 1 to 7, characterized in that: The packaging equipment is provided in two groups. A material elevator (6) is provided upstream of the two groups of packaging equipment, which is used to feed the coarse weight feeder (1) alone, or to feed the coarse weight feeder (1) and the fine weight feeder (2); a weight rechecking machine (7) and a rejecting machine (8) are provided downstream in sequence, which are used to reject material boxes whose loading weight does not meet the standard; the two groups of packaging equipment are also connected upstream with a transfer conveyor (9) for conveying empty material boxes to the packaging equipment.

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