3D printing discharging mechanism

Abstract

The 3D printing discharging mechanism comprises a stock bin, a discharging pipe is fixedly connected to the middle of the bottom of the stock bin, the upper end of the discharging pipe penetrates into an inner cavity of the stock bin, a connecting box is fixedly connected to the right side of the bottom of the stock bin, and a movable hole is formed in the position, close to the top, of the left side of the connecting box. Through mutual cooperation of all the components, the left side of the knocking plate can reciprocate to knock the discharging pipe, raw materials in the discharging pipe are shaken off, the raw materials adhering to the inner wall of the discharging pipe are greatly reduced, the raw materials are discharged more thoroughly, the air cylinder pushes the push plate to descend, the push plate scrapes off the raw materials adhering to the inner wall of the stock bin, and therefore the discharging efficiency is improved. And the push plate drives the pressing plate to descend to press down the stop block, so that the stop block stops a signal sent by the photoelectric signal transmitting end to the photoelectric signal receiving end, and the photoelectric signal receiving end can control the alarm to give an alarm after not receiving the signal, thereby reminding a worker that the raw materials are about to be completely discharged.

Description

Technical Field

[0001] The utility model relates to the technical field of 3D printing, in particular to a 3D printing material discharging mechanism. Background Art

[0002] A 3D printer, also known as a three-dimensional printer, is a rapid prototyping process equipment. It is a technology that uses digital model files as the basis, uses adhesive materials such as plastic particles, and constructs objects by printing layer by layer. It is often used in mold manufacturing, industrial design and other fields.

[0003] The raw materials used in 3D printing can be made of different materials. Materials such as resin and nylon have a certain degree of viscosity. When discharging, the material is easy to adhere to the discharge pipe, causing blockage, resulting in slow discharge speed and not conducive to the discharge of raw materials. Utility Model Content

[0004] The purpose of the utility model is to provide a 3D printing discharging mechanism to solve the problems mentioned in the above background technology.

[0005] The technical solution of the utility model is a 3D printing discharge mechanism, including a silo, a discharge pipe is fixedly connected to the middle of the bottom of the silo, the upper end of the discharge pipe penetrates into the inner cavity of the silo, a connection box is fixedly connected to the right side of the bottom of the silo, a movable hole is opened on the left side of the connection box near the top, a connecting rod is movably sleeved in the movable hole, the two ends of the connecting rod respectively penetrate into the outside and the inner cavity of the left side of the connection box, a knocking plate is fixedly connected to the left side of the connecting rod, the left side of the knocking plate is fitted with the right side of the discharge pipe, and the right side of the connecting rod is fixedly connected to a connecting rod. A connecting block, the bottom surface of which is fixedly connected with a rack, a motor is fixedly connected to the rear side of the inner wall of the connecting box and near the bottom, the shaft of the motor is fixedly connected with a connecting shaft, the front end surface of the connecting shaft is connected to the front side bearing of the inner wall of the connecting box, a half gear is fixedly sleeved on the rear end of the surface of the connecting shaft, the half gear is meshed with the rack, a first spring is sleeved on the surface of the connecting rod, one end of the first spring is fixedly connected to the left side of the inner wall of the connecting box, the other end of the first spring is fixedly connected to the left side of the connecting block, and the lower end of the discharge pipe is fixedly connected with a connecting head.

[0006] In one embodiment, assembly grooves are provided on the left and right sides of the inner wall of the silo and in the middle, a heating plate is fixedly nested in the assembly groove, a feed pipe is fixedly connected to the left side of the silo and near the top, and the right end of the feed pipe passes through the inner cavity of the silo.

[0007] In one embodiment, a threaded groove is provided on the top of the silo, a silo cover is threadedly sleeved on the top of the silo, a cylinder is fixedly sleeved on the top of the silo cover, the lower end of the cylinder penetrates into the inner cavity of the silo, a push plate is fixedly connected to the lower end of the cylinder, and the side surface of the push plate is in contact with the side surface of the inner wall of the silo.

[0008] In one embodiment, a mounting block is fixedly connected to the bottom surface of the bin cover near the right side, there are two mounting blocks, the two mounting blocks are arranged opposite to each other on the left and right, a photoelectric signal transmitting end and a photoelectric signal receiving end are respectively fixedly connected to the facing surfaces of the two mounting blocks near the bottom, an alarm is fixedly connected to the right side of the top surface of the bin cover, and the photoelectric signal receiving end is electrically connected to the alarm.

[0009] In one embodiment, a movable rod is movably sleeved at the top of the bin cover and close to the right side, the lower end of the movable rod penetrates into the inner cavity of the silo, the bottom surface of the movable rod is fixedly connected with a stop block, the stop block is arranged between two mounting blocks, the top surface of the movable rod is fixedly connected with a fixed block, the upper end of the surface of the movable rod is sleeved with a second spring, one end of the second spring is fixedly connected to the top surface of the bin cover, and the other end of the second spring is fixedly connected to the bottom surface of the fixed block.

[0010] In one embodiment, the top of the bin cover is movably sleeved with a movable plate, the bottom of the movable plate penetrates into the interior of the bin, the bottom surface of the movable plate is fixedly connected to the top surface of the push plate, and the top of the left side of the movable plate is fixedly connected with a pressing plate, and the pressing plate is arranged directly above the fixed block.

[0011] In one embodiment, a guide rod is movably sleeved in the middle of the right side of the connection box, and the left side of the guide rod is fixedly connected to the right side of the rack.

[0012] The beneficial effects provided by the utility model are:

[0013] Through the cooperation between various components, the left side of the knocking plate can be moved back and forth, so that the knocking plate knocks the discharge pipe, thereby shaking the raw materials in the discharge pipe off, preventing the raw materials from being blocked in the discharge pipe, greatly reducing the raw materials adhering to the inner wall of the discharge pipe, and making the raw materials discharged more thoroughly, and the cylinder pushes the push plate to descend, so that the push plate can scrape off the raw materials attached to the inner wall of the silo, so that the raw materials can be discharged more thoroughly, and the push plate drives the pressing plate to descend to press the block down, so that the block blocks the signal sent by the photoelectric signal transmitting end to the photoelectric signal receiving end. When the photoelectric signal receiving end fails to receive the signal, it will control the alarm to sound an alarm, thereby reminding the staff that the raw materials are about to be discharged. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is the front view of the utility model;

[0015] Figure 2 It is the main cross-sectional view of the utility model;

[0016] Figure 3 for Figure 2 A magnified view of the structure at center A;

[0017] Figure 4 This is the main cross-sectional view of the connection box;

[0018] Figure 5 A side view of the connection box.

[0019] In the attached drawings, 1, silo; 2, discharge pipe; 3, connecting box; 4, connecting rod; 5, knocking plate; 6, connecting block; 7, rack; 8, motor; 9, connecting shaft; 10, half gear; 11, first spring; 12, connector; 13, heating plate; 14, feed pipe; 15, silo cover; 16, cylinder; 17, push plate; 18, mounting block; 19, photoelectric signal transmitting end; 20, photoelectric signal receiving end; 21, alarm; 22, movable rod; 23, block; 24, fixed block; 25, second spring; 26, movable plate; 27, pressing plate; 28, guide rod. DETAILED DESCRIPTION

[0020] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present invention can be combined with each other. The technical solution of the present invention will be further described below in conjunction with the drawings of the embodiments of the present invention, and the present invention is not limited to the following specific implementation methods.

[0021] It should be understood that the same or similar numbers in the drawings of the embodiments correspond to the same or similar parts. In the description of the present utility model, it should be understood that if there are terms such as "upper", "lower", "front", "back", "left", "right", "top", "bottom" and the like indicating the orientation or positional relationship, they are based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as a limitation on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0022] In one embodiment, Figure 1-5As shown, a 3D printing discharge mechanism includes a silo 1, a discharge pipe 2 is fixedly connected to the middle of the bottom of the silo 1, the upper end of the discharge pipe 2 penetrates into the inner cavity of the silo 1, a connection box 3 is fixedly connected to the right side of the bottom of the silo 1, a movable hole is opened on the left side of the connection box 3 and near the top, a connecting rod 4 is movably sleeved in the movable hole, and the two ends of the connecting rod 4 respectively penetrate the outside and the inner cavity of the left side of the connection box 3, a knocking plate 5 is fixedly connected to the left side of the connecting rod 4, the left side of the knocking plate 5 is fitted with the right side of the discharge pipe 2, and a connecting block 6 is fixedly connected to the right side of the connecting rod 4. A rack 7 is fixedly connected to the bottom surface, a motor 8 is fixedly connected to the rear side of the inner wall of the connecting box 3 and near the bottom, a connecting shaft 9 is fixedly connected to the shaft of the motor 8, the front end face of the connecting shaft 9 is connected to the front side bearing of the inner wall of the connecting box 3, a half gear 10 is fixedly sleeved on the rear end of the surface of the connecting shaft 9, the half gear 10 is meshed with the rack 7, a first spring 11 is sleeved on the surface of the connecting rod 4, one end of the first spring 11 is fixedly connected to the left side of the inner wall of the connecting box 3, the other end of the first spring 11 is fixedly connected to the left side of the connecting block 6, and a connecting head 12 is fixedly connected to the lower end of the discharge pipe 2.

[0023] In order to facilitate the injection of raw materials into the silo 1 and the heating of the raw materials to melt them, assembly grooves are opened on the left and right sides of the inner wall of the silo 1 and in the middle, and a heating plate 13 is fixedly nested in the assembly groove. A feed pipe 14 is fixedly connected to the left side of the silo 1 and near the top, and the right end of the feed pipe 14 penetrates into the inner cavity of the silo 1.

[0024] In order to facilitate the cleaning of the interior of the silo 1, a threaded groove is provided on the top of the silo 1, and a silo cover 15 is threadedly sleeved on the top of the silo 1. A cylinder 16 is fixedly sleeved on the top of the silo cover 15, and the lower end of the cylinder 16 penetrates into the inner cavity of the silo 1. A push plate 17 is fixedly connected to the lower end of the cylinder 16. The side surface of the push plate 17 fits with the side surface of the inner wall of the silo 1. The silo cover 15 is twisted to rotate, and the silo cover 15 can be removed from the silo 1. At this time, the interior of the silo 1 can be conveniently cleaned.

[0025] In order to be able to scrape the inner wall of the silo 1, thereby scraping off the original material adhering to the inner wall of the silo 1 and making the raw materials discharged more thoroughly, a mounting block 18 is fixedly connected to the bottom surface of the silo cover 15 and near the right side. There are two mounting blocks 18, and the two mounting blocks 18 are arranged opposite to each other on the left and right. The facing surfaces of the two mounting blocks 18 and near the bottom are respectively fixedly connected with a photoelectric signal transmitting end 19 and a photoelectric signal receiving end 20. An alarm 21 is fixedly connected to the right side of the top surface of the silo cover 15, and the photoelectric signal receiving end 20 is electrically connected to the alarm 21.

[0026] In order to be able to remind the staff when the raw materials are about to be discharged, a movable rod 22 is movably sleeved on the top of the bin cover 15 and close to the right side. The lower end of the movable rod 22 penetrates into the inner cavity of the silo 1, and the bottom surface of the movable rod 22 is fixedly connected with a stopper 23, and the stopper 23 is arranged between the two mounting blocks 18. The top surface of the movable rod 22 is fixedly connected with a fixed block 24, and the upper end of the surface of the movable rod 22 is sleeved with a second spring 25, one end of the second spring 25 is fixedly connected to the top surface of the bin cover 15, and the other end of the second spring 25 is fixedly connected to the bottom surface of the fixed block 24. A movable plate 26 is movably sleeved on the top of the bin cover 15, and the bottom of the movable plate 26 penetrates into the interior of the silo 1, and the bottom surface of the movable plate 26 is fixedly connected to the top surface of the push plate 17. A pressing plate 27 is fixedly connected to the top of the left side of the movable plate 26, and the pressing plate 27 is arranged directly above the fixed block 24.

[0027] In order to make the rack 7 move left and right more stable and prevent the rack 7 from being separated from the half gear 10 due to rotation or tilting, a guide rod 28 is movably sleeved in the middle of the right side of the connecting box 3, and the left side of the guide rod 28 is fixedly connected to the right side of the rack 7.

[0028] Working principle: When the utility model is used, firstly, raw materials are put into the silo 1 through the feed pipe 14, and then the raw materials are heated and melted through the heating plate 13. The connector 12 can be connected to the printing assembly on the printer, and the raw materials in the discharge pipe 2 are discharged. When the raw materials are discharged, the motor 8 is started, and the motor 8 drives the connecting shaft 9 to rotate, and the connecting shaft 9 drives the half gear 10 to rotate clockwise. The rotation of the half gear 10 causes the rack 7 to move to the right, and the rack 7 drives the connecting block 6 to move to the right, and the connecting block 6 The connecting rod 4 is driven to move to the right, and the connecting rod 4 drives the knocking plate 5 to move to the right, so that the knocking plate 5 is no longer in contact with the discharge pipe 2. When the connecting block 6 moves to the right, the first spring 11 is stretched. When the half gear 10 rotates to no longer fit with the rack 7, the elastic restoring force of the first spring 11 pulls the connecting block 6 to the left, and the connecting block 6 drives the connecting rod 4 to move to the left, and the connecting rod 4 drives the knocking plate 5 to move to the left, so that the knocking plate 5 knocks the discharge pipe 2, thereby shaking the raw materials in the discharge pipe 2 off, preventing The material is prevented from being blocked in the discharge pipe 2, which greatly reduces the material adhering to the inner wall of the discharge pipe 2, so that the material is discharged more thoroughly. At the same time as the discharge pipe 2 is discharged, the cylinder 16 will also push the push plate 17 to descend, and the side surface of the push plate 17 will scrape the inner wall of the silo 1 to scrape off the material attached to the inner wall of the silo 1, so that the material is discharged more thoroughly. When the push plate 17 descends, it will drive the movable plate 26 to descend, and the movable plate 26 drives the pressing plate 27 to descend. After the pressing plate 27 descends to a certain height, the bottom surface contacts the top surface of the fixed block 24. At this time, the pressing plate 27 continues to descend and presses the fixed block 24 downward, and the fixed block 24 drives the movable rod 22 to descend, and the movable rod 22 drives the stopper 23 to descend, so that the stopper 23 is located between the photoelectric signal transmitting end 19 and the photoelectric signal receiving end 20, blocking the signal sent by the photoelectric signal transmitting end 19 to the photoelectric signal receiving end 20. After the photoelectric signal receiving end 20 fails to receive the signal, it will control the alarm 21 to alarm, thereby reminding the staff that the raw materials are about to be discharged.

[0029] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above 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.

[0030] The above embodiments only express several implementation methods of the utility model, and the descriptions are relatively specific and detailed, but they 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 3D printing discharging mechanism, characterized in that: The invention comprises a silo, wherein a discharge pipe is fixedly connected to the middle of the bottom of the silo, the upper end of the discharge pipe penetrates into the inner cavity of the silo, a connection box is fixedly connected to the right side of the bottom of the silo, a movable hole is opened on the left side of the connection box near the top, a connecting rod is movably sleeved in the movable hole, the two ends of the connecting rod respectively penetrate into the outside and the inner cavity of the left side of the connection box, a knocking plate is fixedly connected to the left side of the connecting rod, the left side of the knocking plate is fitted with the right side of the discharge pipe, a connecting block is fixedly connected to the right side of the connecting rod, and the bottom surface of the connecting block A rack is fixedly connected, a motor is fixedly connected to the rear side of the inner wall of the connecting box and near the bottom, the shaft of the motor is fixedly connected to a connecting shaft, the front end face of the connecting shaft is connected to the front bearing of the inner wall of the connecting box, a half gear is fixedly sleeved on the rear end of the surface of the connecting shaft, the half gear is meshed with the rack, a first spring is sleeved on the surface of the connecting rod, one end of the first spring is fixedly connected to the left side of the inner wall of the connecting box, the other end of the first spring is fixedly connected to the left side of the connecting block, and the lower end of the discharge pipe is fixedly connected to a connecting head.

2. A 3D printing discharging mechanism according to claim 1, characterized in that: Assembly grooves are provided on the left and right sides of the inner wall of the silo and in the middle, a heating plate is fixedly nested in the assembly groove, a feed pipe is fixedly connected to the left side of the silo and near the top, and the right end of the feed pipe penetrates into the inner cavity of the silo.

3. A 3D printing discharging mechanism according to claim 1, characterized in that: A threaded groove is provided on the top of the silo, a silo cover is threadedly sleeved on the top of the silo, a cylinder is fixedly sleeved on the top of the silo cover, the lower end of the cylinder penetrates into the inner cavity of the silo, a push plate is fixedly connected to the lower end of the cylinder, and the side surface of the push plate is in contact with the side surface of the inner wall of the silo.

4. A 3D printing discharging mechanism as claimed in claim 3, characterized in that: A mounting block is fixedly connected to the bottom surface of the bin cover near the right side, there are two mounting blocks, the two mounting blocks are arranged opposite to each other on the left and right, a photoelectric signal transmitting end and a photoelectric signal receiving end are respectively fixedly connected to the facing surfaces of the two mounting blocks near the bottom, an alarm is fixedly connected to the right side of the top surface of the bin cover, and the photoelectric signal receiving end is electrically connected to the alarm.

5. A 3D printing discharging mechanism as claimed in claim 3, characterized in that: A movable rod is movably sleeved at the top of the bin cover and close to the right side, the lower end of the movable rod penetrates into the inner cavity of the silo, the bottom surface of the movable rod is fixedly connected with a stopper, the stopper is arranged between two mounting blocks, the top surface of the movable rod is fixedly connected with a fixed block, the upper end of the surface of the movable rod is sleeved with a second spring, one end of the second spring is fixedly connected to the top surface of the bin cover, and the other end of the second spring is fixedly connected to the bottom surface of the fixed block.

6. A 3D printing discharging mechanism as claimed in claim 3, characterized in that: The top of the bin cover is movably sleeved with a movable plate, the bottom of the movable plate penetrates into the interior of the bin, the bottom surface of the movable plate is fixedly connected to the top surface of the push plate, the top of the left side of the movable plate is fixedly connected with a pressing plate, and the pressing plate is arranged directly above the fixed block.

7. A 3D printing discharging mechanism according to claim 1, characterized in that: A guide rod is movably sleeved in the middle of the right side of the connection box, and the left side of the guide rod is fixedly connected to the right side of the rack.

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