3D printing waste recycling and filtering device

Abstract

The utility model discloses a 3D printing waste recycling and filtering device which structurally comprises a recycling and filtering box, a filtering and sorting mechanism and an auxiliary mechanism, wherein the filtering and sorting mechanism and the auxiliary mechanism are arranged in the recycling and filtering box; the filtering and sorting mechanism comprises an upper filtering net cover, a filtering ring net, an upper collecting hopper, an upper discharging channel, a middle collecting hopper, a flow dividing channel and a lower filtering net cover. And the auxiliary mechanism comprises a material pushing rotary arm, and a crushing cutter group, a crushing shaft, a motor, a rotary shaft and a motor which are arranged in the shunting channel. According to the device, after entering the recovery filter box, waste materials can be filtered for multiple times through the upper filter screen cover and the lower filter screen cover in sequence; through cooperation of a material pushing rotary arm in the auxiliary mechanism and power equipment, the filtered unqualified waste materials are concentrated into a flow dividing channel, normal use of the filtering function is guaranteed, then through cooperation of a crushing cutter set and the power equipment, the filtered unqualified waste materials are crushed, secondary filtering is conducted through a lower filtering net cover, and the waste materials are recycled. And the waste treatment efficiency and quality are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of filtering devices, in particular to a 3D printing waste recycling filtering device. Background Art

[0002] 3D printing is a rapid manufacturing technology, also known as additive manufacturing or rapid prototyping technology. It uses a layer-by-layer stacking method to print a digitally designed three-dimensional model into a physical entity through a 3D printer. In the process of using 3D printing, there is usually a part of the printing waste left, and directly discarding these wastes will cause a lot of waste. Some wastes that have been melted and re-molded can be recycled and put back into use. However, in order to improve the efficiency of melting, the waste needs to be crushed; because the waste itself is of different sizes, the crushed waste will be of different sizes. In this case, the waste needs to be sorted through a filtering device, the unqualified waste is taken out, and the waste is crushed again to make the waste meet the melting standard.

[0003] When using existing waste filtering devices, most of them filter the waste through the screen once and then take out the waste remaining on the screen, resulting in incomplete waste sorting. Moreover, the screened waste accumulates on the screen surface in the equipment. Since the equipment has a certain depth, it is difficult to discharge the material. As more unqualified waste is filtered out, the available area of ​​the screen surface gradually decreases, which reduces the waste treatment efficiency and needs to be improved. Utility Model Content

[0004] The purpose of this section is to summarize some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and utility model name of this application to avoid blurring the purpose of this section, specification abstract and utility model name, and such simplifications or omissions cannot be used to limit the scope of the utility model.

[0005] Therefore, in order to solve the above technical problems, the utility model provides the following technical solutions: a 3D printing waste recycling and filtering device, comprising a recycling filter box and a filtering and sorting mechanism and an auxiliary mechanism arranged in the recycling filter box;

[0006] The filtering and sorting mechanism comprises an upper filter screen, a filter ring net, an upper collecting hopper, an upper discharge channel, a middle collecting hopper, a diversion channel and a lower filter screen. The ring net is arranged at the bottom of the upper filter screen and is used for primary filtering; the upper collecting hopper is arranged below the upper filter screen, the bottom end of the upper collecting hopper is connected with the top end of the upper discharge channel, and the upper discharge channel is connected with the storage box for storing qualified materials filtered out by the primary filtration; diversion discharge ports are provided on both sides of the filter ring net, the bottom ends of the diversion discharge ports are connected with the diversion channel, and the middle collecting hopper is arranged below the diversion channel for collecting unqualified materials filtered out by the primary filtration; the lower filter screen is arranged below the middle collecting hopper for secondary filtration;

[0007] The auxiliary mechanism includes a pushing arm and a crushing knife group, a crushing shaft, a motor, a rotating shaft and an electric motor arranged in the diversion channel. The top end of the pushing arm is fixed on the rotating shaft, the rotating shaft is connected to the motor, and the pushing arm is rotatably connected to the surface of the filter ring net and the upper filter cover; the output end of the motor is connected to the crushing shaft, the crushing shaft is rotatably installed in the diversion channel, and the crushing shaft is arranged with a crushing knife group.

[0008] As a preferred solution of the 3D printing waste recycling and filtering device described in the utility model, wherein: the top of the recovery filter box is connected to a feed pipe for introducing 3D printing waste, the upper filter screen is arranged below the feed pipe, the bottom end of the upper filter screen is fixedly connected to the inner ring of the filter ring net, and the outer ring of the upper filter ring net is fixedly connected to the inner ring wall of the recovery filter box.

[0009] As a preferred solution of the 3D printing waste recycling and filtering device described in the utility model, a lower collecting hopper is arranged below the lower filter screen cover, and the bottom end of the lower collecting hopper is connected to the lower discharge channel, and the lower discharge channel is also connected to the storage box.

[0010] As a preferred solution of the 3D printing waste recycling and filtering device described in the utility model, wherein: a recycling port is opened on the recycling filter box at the bottom end of the lower filter screen cover, a recycling cylinder is connected to the recycling filter box outside the recycling port, the bottom of the recycling cylinder is connected to the recycling channel, and the recycling channel is connected to the recycling box.

[0011] As a preferred solution of the 3D printing waste recycling and filtering device described in the utility model, the upper filter screen cover and the lower filter screen cover are both conical structures, the upper collecting hopper, the middle collecting hopper and the lower collecting hopper are all truncated cone structures that are connected up and down and are wide at the top and narrow at the bottom, and the larger end of each group of collecting hoppers and filter screen covers is fixedly connected to the inner wall of the recovery filter box.

[0012] As a preferred solution of the 3D printing waste recycling and filtering device of the utility model, the mesh apertures of the upper filter screen, the lower filter screen and the filter ring are consistent in size.

[0013] Beneficial effects of the utility model:

[0014] 1. A 3D printing waste recycling and filtering device proposed in the utility model can filter and sort 3D printing waste through a filtering and sorting mechanism in a recycling filter box, so that after the waste enters the recycling filter box, it can be filtered multiple times through an upper filter screen cover and a lower filter screen cover in sequence. The overall structure of the device is simple and the functions are diverse, which can greatly improve the waste recycling and filtering efficiency and quality.

[0015] 2. A 3D printing waste recovery and filtering device proposed in the utility model can concentrate the filtered unqualified waste into a diversion channel through the cooperation of the pushing arm in the auxiliary mechanism and the power equipment, thereby ensuring the normal use of the filtering function, and then crushing the filtered unqualified waste through the cooperation of the crushing knife group and the power equipment, and then performing secondary filtration through the lower filter screen, thereby further improving the waste treatment efficiency and quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following briefly introduces the drawings required for the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0018] Figure 2 This is a schematic diagram of the internal structure of the recovery filter box of the utility model.

[0019] Figure 3 It is a schematic cross-sectional structure diagram of the recovery filter box of the utility model.

[0020] Figure 4 It is a partial structural schematic diagram of the utility model.

[0021] Figure 5 It is a schematic cross-sectional structure diagram of the filtering and sorting mechanism of the utility model.

[0022] In the figure: 100, recovery filter box; 101, feed pipe; 102, recovery channel; 103, recovery port; 104, recovery cylinder; 105, recovery box;

[0023] 200, filtering and sorting mechanism; 201, upper filter screen; 202, filter ring; 2021, diversion discharge port; 203, upper collection hopper; 204, middle collection hopper; 205, diversion channel; 206, lower filter screen; 207, lower collection hopper; 208, lower discharge channel; 209, storage box; 210, upper discharge channel;

[0024] 300, auxiliary mechanism; 301, pusher arm; 302, crushing knife group; 303, crushing shaft; 304, motor; 305, rotating shaft; 306, motor. DETAILED DESCRIPTION

[0025] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0026] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0027] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0028] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the embodiments of the present invention, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0029] Reference Figures 1 to 5 , which is an embodiment of the utility model, provides a 3D printing waste recycling and filtering device, including a recycling filter box 100 and a filtering and sorting mechanism 200 and an auxiliary mechanism 300 arranged in the recycling filter box 100;

[0030] The filtering and sorting mechanism 200 includes an upper filter screen cover 201, a filter ring net 202, an upper collecting hopper 203, a middle collecting hopper 204, a diversion channel 205 and a lower filter screen cover 206. The ring net 202 is arranged at the bottom of the upper filter screen cover 201 and is used for the first filtration; the upper collecting hopper 203 is arranged below the upper filter screen cover 201, and the bottom end of the upper collecting hopper 203 is connected to the top end of the upper discharge channel 210, and the upper discharge channel 210 is connected to the storage box 209 for storing qualified materials filtered out once; the two ends of the filter ring net 202 are connected to the upper and lower ends of the filter ring net 202. A diversion discharge port 2021 is opened on the side, and the bottom end of the diversion discharge port 2021 is connected to the diversion channel 205. The middle collection hopper 204 is arranged below the diversion channel 205, which is used to collect unqualified materials filtered out by the primary filtration; the lower filter screen cover 206 is arranged below the middle collection hopper 204 for secondary filtration; the top of the recovery filter box 100 is connected to the feed pipe 101 for introducing 3D printing waste, the upper filter screen cover 201 is arranged below the feed pipe 101, and the bottom end of the upper filter screen cover 201 is fixedly connected to the inner ring of the filter ring net 202. The outer ring of the upper filter ring net 202 is fixedly connected to the inner ring wall of the recovery filter box 100; a lower collecting hopper 207 is arranged below the lower filter screen cover 206, and the bottom end of the lower collecting hopper 207 is connected to the lower discharge channel 208, and the lower discharge channel 208 is connected to one side of the storage box 209, and the other side of the storage box 209 is connected to the diversion channel 205, and the diversion channel 205 is connected to the bottom end of the upper collecting hopper 203; a recovery port 103 is opened on the recovery filter box 100 at the bottom end of the lower filter screen cover 206, and the recovery filter box 100 outside the recovery port 103 is connected to the recovery filter box 100 A recovery cylinder 104 is connected to the top, the bottom of the recovery cylinder 104 is connected to the recovery channel 102, and the recovery channel 102 is connected to the recovery box 105; the upper filter screen cover 201 and the lower filter screen cover 206 are both conical structures, the upper collecting hopper 203, the middle collecting hopper 204 and the lower collecting hopper 207 are all connected up and down, and are truncated cone-shaped structures that are wide at the top and narrow at the bottom. The larger end of each group of collecting hoppers and filter screen covers is fixedly connected to the inner wall of the recovery filter box 100; the mesh apertures of the upper filter screen cover 201, the lower filter screen cover 206 and the filter ring net 202 are consistent in size.

[0031] The auxiliary mechanism 300 includes a pushing arm 301 and a crushing knife group 302, a crushing shaft 303, a motor 304, a rotating shaft 305 and a motor 306 arranged in the diversion channel 205. The top end of the pushing arm 301 is fixed on the rotating shaft 305, and the rotating shaft 305 is connected to the motor 306. The pushing arm 301 is rotatably connected to the surface of the filter ring net 202 and the upper filter net cover 201; the output end of the motor 304 is connected to the crushing shaft 303, and the crushing shaft 303 is rotatably installed in the diversion channel 205, and the crushing shaft 303 is arranged with a crushing knife group 302.

[0032] In this embodiment: when in use, the 3D printed plastic waste is introduced into the recycling filter box 100 through the feed pipe 101, and the waste is first dispersed through the upper filter screen cover 201 so that the waste is spread on the mesh surface of the upper filter screen cover 201 with a certain slope, and then under the action of gravity, when the waste passes through the mesh holes on the upper filter screen cover 201, unqualified waste slides to the surface of the filter ring net 202, and most of the qualified waste passes through the mesh holes of the filter ring net 202 and the upper filter screen cover 201 and falls into the upper collecting hopper 203, and is directly discharged into the storage box 209 through the upper discharge channel 210.

[0033] Start the power supply of motor 306 and motor 304, so that motor 306 drives the pushing arm 301 to rotate along the surface of the filter ring net 202 and the upper filter screen cover 201 through the rotating shaft 305, thereby collecting the unqualified waste on the surface thereof, and when the waste passes through the diversion discharge port 2021, it falls into the diversion channel 205; at this time, motor 304 drives the crushing knife group 302 to rotate through the crushing shaft 303, and then the crushing knife group 302 crushes the unqualified waste passing through the diversion channel 205.

[0034] The crushed waste falls into the intermediate collecting hopper 204 under the action of gravity, and is concentrated at the bottom opening of the intermediate collecting hopper 204, and then passes through the opening and falls to the top of the lower filter screen cover 206, and is dispersed through the lower filter screen cover 2061, so that the waste is spread on the mesh surface of the lower filter screen cover 206 with a certain slope, and then under the action of gravity, when the waste passes through the mesh holes on the lower filter screen cover 206, the unqualified waste slides to the bottom end of the lower filter screen cover 206, and is recovered into the recovery cylinder 104 through the recovery port 103, and is concentrated into the recovery box 106 through the recovery channel 102, and most of the qualified waste passes through the mesh holes on the lower filter screen cover 206 and falls into the lower collecting hopper 207, and is discharged into the storage box 209 through the lower discharge channel 208.

[0035] It is worth noting that the entire device is controlled by a controller. Since the controller is a commonly used device and belongs to the existing mature technology, its electrical connection relationship and specific circuit structure will not be described in detail here.

[0036] It should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A 3D printing waste recycling and filtering device, characterized in that: It comprises a recovery filter box (100) and a filtering and sorting mechanism (200) and an auxiliary mechanism (300) arranged in the recovery filter box (100); The filtering and sorting mechanism (200) comprises an upper filtering screen cover (201), a filtering ring net (202), an upper collecting hopper (203), an upper discharge channel (210), a middle collecting hopper (204), a diversion channel (205) and a lower filtering screen cover (206); the filtering ring net (202) is arranged at the bottom of the upper filtering screen cover (201) and is used for primary filtering; the upper collecting hopper (203) is arranged below the upper filtering screen cover (201), and the bottom end of the upper collecting hopper (203) is adjacent to the upper discharge channel (210). The top end is connected, and the upper discharge channel (210) is connected to the storage box (209) for storing qualified materials filtered out by the primary filtration; the two sides of the filter ring network (202) are provided with a diversion discharge port (2021), the bottom end of the diversion discharge port (2021) is connected to the diversion channel (205), and the middle collection hopper (204) is arranged below the diversion channel (205) for collecting unqualified materials filtered out by the primary filtration; the lower filter screen cover (206) is arranged below the middle collection hopper (204) for secondary filtration; The auxiliary mechanism (300) comprises a material pushing arm (301), a crushing blade group (302) arranged in the diversion channel (205), a crushing shaft (303), a motor (304), a rotating shaft (305) and a motor (306); the top end of the material pushing arm (301) is fixed on the rotating shaft (305); the rotating shaft (305) is connected to the motor (306); the material pushing arm (301) is rotatably connected to the filter ring net (202) and the surface of the upper filter screen cover (201); the output end of the motor (304) is connected to the crushing shaft (303); the crushing shaft (303) is rotatably installed in the diversion channel (205); and the crushing blade group (302) is arranged on the crushing shaft (303).

2. The 3D printing waste recycling and filtering device according to claim 1, characterized in that: The top end of the recovery filter box (100) is connected to a feed pipe (101) for introducing 3D printing waste, the upper filter screen cover (201) is arranged below the feed pipe (101), the bottom end of the upper filter screen cover (201) is fixedly connected to the inner ring of the filter ring net (202), and the outer ring of the upper filter ring net (202) is fixedly connected to the inner ring wall of the recovery filter box (100).

3. The 3D printing waste recycling and filtering device according to claim 1, characterized in that: A lower collecting hopper (207) is arranged below the lower filter screen cover (206), and the bottom end of the lower collecting hopper (207) is connected to a lower discharge channel (208), and the lower discharge channel (208) is also connected to a storage box (209).

4. The 3D printing waste recycling and filtering device according to claim 1, characterized in that: A recovery port (103) is provided on the recovery filter box (100) at the bottom end of the lower filter screen cover (206); a recovery cylinder (104) is connected to the recovery filter box (100) outside the recovery port (103); the bottom of the recovery cylinder (104) is connected to the recovery channel (102); and the recovery channel (102) is connected to the recovery box (105).

5. The 3D printing waste recycling and filtering device according to claim 1, characterized in that: The upper filter screen cover (201) and the lower filter screen cover (206) are both conical structures, and the upper collecting hopper (203), the middle collecting hopper (204) and the lower collecting hopper (207) are all truncated cone structures that are connected from top to bottom and are wide at the top and narrow at the bottom. The larger end of each set of collecting hoppers and filter screen covers is fixedly connected to the inner circumferential wall of the recovery filter box (100).

6. The 3D printing waste recycling and filtering device according to claim 1, characterized in that: The mesh apertures of the upper filter screen cover (201), the lower filter screen cover (206) and the filter ring net (202) are of the same size.

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