Consumable heating mechanism of 3D printer

Abstract

The utility model discloses a consumable heating mechanism of a 3D (three-dimensional) printer, which belongs to the technical field of 3D printers and comprises a heating shell, a radiating hole is formed in the side surface of the heating shell, a dustproof component is embedded in the radiating hole, the top of the heating shell is connected with a connecting plate, and a guide component is arranged at the top of the connecting plate. Under the elastic acting force of a spring on a clamping block, the clamping block and the outer cylinder are tightly inserted, so that a filter screen is tightly attached and fixed to a limiting ring body in a heat dissipation hole, the filter screen can filter air to prevent dust from entering the device, and the using effect of the device can be better; according to the utility model, the guide assembly and the rotating block are arranged to play a limiting role, and the rotating screw rod is in meshed connection with the transmission block, so that the two limiting plates can move in opposite directions to position the consumable in the middle position in the positioning sleeve due to the fact that the directions of threads on the surfaces of the two ends of the screw rod are opposite, and the consumable can stably move downwards to achieve a better heating effect.

Description

Technical Field

[0001] The utility model belongs to the technical field of 3D printers, and in particular relates to a consumable material heating mechanism of a 3D printer. Background Art

[0002] A 3D printer is a machine using rapid prototyping technology. It is a technology that uses a digital model file as the basis and uses powdered metal or plastic and other bondable materials to construct objects by printing layer by layer. In the past, it was often used to make models in the fields of mold manufacturing, industrial design, etc., and is now gradually being used for the direct manufacturing of some products, which means that this technology is becoming popular. Its principle is: put data and raw materials into a 3D printer, and the machine will build the product layer by layer according to the program, and the printed product can be used immediately.

[0003] Chinese patent application No. 202321551488.8 discloses a consumable heating structure for a 3D printer, including a heating shell, the upper surface of the heating shell is fixedly connected with a connection cover, the inner wall of the connection cover is fixedly connected with an annular heat-conducting cover, the outer surface of the annular heat-conducting cover is fixedly connected with an annular heating cover, the inner top wall of the heating shell is fixedly connected with two detection plates, the two detection plates are fixedly installed with contact temperature sensors on the side close to each other, the two contact temperature sensors are in contact with the outer surface of the annular heat-conducting cover at one end, the bottom end of the heating shell is fixedly inlaid with a nozzle, the top end of the nozzle is fixedly connected to the bottom end of the annular heat-conducting cover, and the inner wall of the heating shell is fixedly connected with two support plates. This consumable heating structure has a structure for regulating the heating temperature of the consumables, solves the problem of excessive heating temperature of the consumables, which affects the cooling speed of the consumables during printing, and improves printing efficiency.

[0004] In the above-mentioned public patent, the heat dissipation fan operates in the heating shell to discharge hot air from the heat dissipation holes for heat dissipation. Dust in the outside air will enter through the heat dissipation holes, which is difficult to clean and the use effect of the device is poor. The consumables are inserted into the positioning sleeve and heated by the annular heat conductive cover. When facing consumables of different diameters, the consumables cannot be moved vertically in the center of the positioning sleeve, which affects the heating effect of the consumables. Utility Model Content

[0005] In order to solve the problems raised in the above background technology, the utility model provides a consumable heating mechanism for a 3D printer, which has the characteristics of being dustproof and dustproof and having good use effect.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a consumables heating mechanism for a 3D printer, comprising a heating shell, a heat dissipation hole is opened on the side of the heating shell, a dustproof component is embedded in the heat dissipation hole, a nozzle is connected to the bottom of the heating shell, a heat dissipation mesh plate is embedded in the top of the heating shell, a connecting plate is connected to the top of the heating shell, a guide component is arranged on the top of the connecting plate, and a positioning sleeve is connected to the top of the connecting plate.

[0007] Preferably, the dust-proof component includes an auxiliary component, a limiting ring, a block, a spring, an outer cylinder and a filter, wherein a limiting ring is embedded in the heat dissipation hole, an outer cylinder is arranged on the side of the limiting ring, a filter is embedded in the outer cylinder, a block is embedded in the inner bottom of the heat dissipation hole, a spring is connected to the bottom of the block, a slot is provided on the surface of the outer cylinder, an auxiliary component is provided on the top of the heating shell, and a plug-in structure is provided between the block and the outer cylinder.

[0008] Preferably, the top of the heat dissipation hole is connected to a limiting groove, the surface of the outer cylinder is connected to a limiting block, the block is in an L-shaped structure, and the outer cylinder and the heating shell are in a split structure.

[0009] Preferably, the auxiliary component includes a positioning groove, a mounting block, a tension spring, a positioning rod and a mounting groove, wherein a mounting groove is opened on the top of the heating shell, the bottom of the mounting groove is connected to the positioning groove, the side of the heat dissipation mesh plate is connected to the mounting block, the positioning rod is embedded in the mounting block, and a tension spring is connected between the positioning rod and the mounting block.

[0010] Preferably, the guide assembly includes a limiting plate, a transmission block, a side seat and a screw, wherein a side seat is provided on the top of the connecting plate, a screw is embedded in the side seat, two transmission blocks are sleeved on the surface of the screw, and the side of the transmission block is connected to the limiting plate.

[0011] Preferably, the threads of the surfaces at both ends of the screw are in opposite directions, a rotating block is sleeved on the surface of the screw inside the side seat, the rotating block is in a circular ring structure, and the two limit plates are in a staggered structure.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. The utility model provides a dustproof component. Under the elastic force of the spring on the card block, the card block and the outer cylinder are tightly plugged together to fix the filter screen in the heat dissipation hole and the limit ring. The filter screen can filter the air to prevent dust from entering the inside of the device, which can make the device more effective. The card block can be separated from the outer cylinder to take out the outer cylinder to clean the filter screen.

[0014] 2. The utility model sets a guide component, and the rotating block plays a limiting role. When the rotating screw is meshed with the transmission block, the threads on the two end surfaces of the screw are in opposite directions, so that the two limiting plates can move toward each other to position the consumables in the center of the positioning sleeve, so that the consumables can move downward stably and the heating effect is better. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is the front view of the utility model;

[0016] Figure 2 This is a front view of the dustproof component of the utility model;

[0017] Figure 3 This is a front view of the auxiliary component of the utility model;

[0018] Figure 4 This is the front view of the guide component of the utility model.

[0019] In the figure: 1. positioning sleeve; 2. connecting plate; 3. heating shell; 4. nozzle; 5. heat dissipation hole; 6. dustproof component; 61. auxiliary component; 611. positioning groove; 612. mounting block; 613. tension spring; 614. positioning rod; 615. mounting groove; 62. limiting ring; 63. clamping block; 64. spring; 65. outer cylinder; 66. filter screen; 67. limiting block; 68. limiting groove; 7. heat dissipation mesh plate; 8. guide component; 81. limiting plate; 82. transmission block; 83. side seat; 84. screw; 85. rotating block. DETAILED DESCRIPTION

[0020] 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.

[0021] Example 1

[0022] See also Figure 1-4 The utility model provides the following technical solutions: a consumable heating mechanism for a 3D printer, comprising a heating shell 3, a heat dissipation hole 5 is opened on the side of the heating shell 3, a dustproof component 6 is embedded in the heat dissipation hole 5, a nozzle 4 is connected to the bottom of the heating shell 3, a heat dissipation mesh plate 7 is embedded in the top of the heating shell 3, a connecting plate 2 is connected to the top of the heating shell 3, a guide component 8 is arranged on the top of the connecting plate 2, and a positioning sleeve 1 is connected to the top of the connecting plate 2.

[0023] Specifically, the dustproof component 6 includes an auxiliary component 61, a limiting ring 62, a block 63, a spring 64, an outer cylinder 65 and a filter 66. The limiting ring 62 is embedded in the heat dissipation hole 5, the side of the limiting ring 62 is provided with an outer cylinder 65, the inner part of the outer cylinder 65 is embedded with a filter 66, the inner bottom of the heat dissipation hole 5 is embedded with a block 63, the bottom of the block 63 is connected to a spring 64, the surface of the outer cylinder 65 is provided with a slot, the top of the heating shell 3 is provided with an auxiliary component 61, and the block 63 and the outer cylinder 65 are a plug-in structure.

[0024] By adopting the above technical solution, under the elastic force of the spring 64 on the block 63, the block 63 and the outer tube 65 are tightly plugged together, so that the filter screen 66 can be tightly fixed with the limit ring 62 in the heat dissipation hole 5. The filter screen 66 can filter the air to prevent dust from entering the interior of the device, which can make the device more effective.

[0025] Specifically, the top of the heat dissipation hole 5 is connected to the limiting groove 68, the surface of the outer cylinder 65 is connected to the limiting block 67, the block 63 is L-shaped, and the outer cylinder 65 and the heating shell 3 are split structures.

[0026] By adopting the above technical solution, the movable block 63 can be separated from the outer cylinder 65 to remove the outer cylinder 65 to clean the filter screen 66. The sliding connection between the limit block 67 and the limit groove 68 facilitates the guiding of the block 63 and the outer cylinder 65 for insertion.

[0027] Specifically, the auxiliary component 61 includes a positioning groove 611, a mounting block 612, a tension spring 613, a positioning rod 614 and a mounting groove 615. The top of the heating shell 3 is provided with a mounting groove 615, the bottom of the mounting groove 615 is connected to the positioning groove 611, the side of the heat dissipation mesh plate 7 is connected to the mounting block 612, the inside of the mounting block 612 is embedded with a positioning rod 614, and a tension spring 613 is connected between the positioning rod 614 and the mounting block 612.

[0028] By adopting the above technical solution, the positioning rod 614 is moved upward to separate it from the positioning groove 611, and then the mounting block 612 is moved sideways to remove the heat dissipation mesh plate 7 for cleaning, which can improve the heat dissipation effect of the device. The mounting block 612 is rotated and slid into the mounting groove 615. Under the pulling force of the tension spring 613, the positioning rod 614 and the positioning groove 611 are tightly inserted to ensure that the mounting block 612 is firmly installed and positioned.

[0029] When the present embodiment is used, the consumables are inserted into the heating shell 3 through the positioning sleeve 1 through the connecting plate 2. The annular heating cover in the heating shell 3 can heat the consumables, and then the consumables will be discharged from the nozzle 4. The operation of the two fans in the heating shell 3 can dissipate heat and cool the device through the heat dissipation holes 5 and the heat dissipation mesh plate 7. Under the elastic force of the spring 64 on the block 63, the block 63 and the outer cylinder 65 are tightly plugged together, so that the filter screen 66 can be tightly fixed in the heat dissipation hole 5 and the limit ring 62. The filter screen 66 can filter the air to prevent dust from entering the interior of the device, which can make the use effect of the device better. Okay, move the card block 63 to separate from the outer cylinder 65, then take out the outer cylinder 65 to clean the filter screen 66, and the sliding connection between the limit block 67 and the limit groove 68 is convenient for guiding the card block 63 to be plugged into the outer cylinder 65, move the positioning rod 614 upward to separate it from the positioning groove 611, and then move the mounting block 612 sideways to remove the heat dissipation mesh plate 7 for cleaning, which can make the heat dissipation effect of the device better, and slide the mounting block 612 into the rotating mounting groove 615. Under the pulling force of the tension spring 613, the positioning rod 614 and the positioning groove 611 are tightly plugged together to make the mounting block 612 firmly installed and positioned.

[0030] Example 2

[0031] The difference between this embodiment and embodiment 1 is that the guide assembly 8 includes a limiting plate 81, a transmission block 82, a side seat 83 and a screw 84, the top of the connecting plate 2 is provided with a side seat 83, the inside of the side seat 83 is embedded with a screw 84, the surface of the screw 84 is sleeved with two transmission blocks 82, and the side of the transmission block 82 is connected to the limiting plate 81.

[0032] Specifically, the threads of the two end surfaces of the screw rod 84 are in opposite directions, and a rotating block 85 is sleeved on the surface of the screw rod 84 inside the side seat 83. The rotating block 85 is in a circular ring structure, and the two limit plates 81 are in a staggered structure.

[0033] By adopting the above technical solution, the rotating block 85 plays a limiting role. When the rotating screw 84 is meshed with the transmission block 82, the two limiting plates 81 can move toward each other to position the consumables in the center of the positioning sleeve 1 because the threads on the two end surfaces of the screw 84 are in opposite directions, so that the consumables can be stably moved downward for better heating effect.

[0034] When this embodiment is in use, the rotating block 85 plays a limiting role. When the rotating screw 84 is meshed with the transmission block 82, the two limiting plates 81 can move toward each other because the threads on the two end surfaces of the screw 84 are in opposite directions, so that the consumables can be positioned in the center position of the positioning sleeve 1, so that the consumables can be stably moved downward for better heating effect.

[0035] The structure and use principle of the positioning sleeve 1, connecting plate 2, heating shell 3, nozzle 4, heat dissipation hole 5 and heat dissipation mesh plate 7 in the utility model have been disclosed in Chinese patent application No. 202321551488.8, which discloses a consumable heating structure of a 3D printer. Its working principle is to insert the consumable from the positioning sleeve 1 into the heating shell 3 through the connecting plate 2, and the annular heating cover in the heating shell 3 can heat the consumable, and then the consumable will be discharged from the nozzle 4. The operation of the two fans in the heating shell 3 can dissipate heat and cool the device through the heat dissipation holes 5 and the heat dissipation mesh plate 7.

[0036] Working principle and use process of the utility model: When the utility model is used, the consumables are inserted from the positioning sleeve 1 through the connecting plate 2 into the heating shell 3, and the rotating block 85 plays a limiting role. The rotating screw 84 is meshed and connected between the screw 84 and the transmission block 82. Because the threads of the surfaces at both ends of the screw 84 are in opposite directions, the two limiting plates 81 can move toward each other to position the consumables in the middle position in the positioning sleeve 1, so that the consumables can move down stably and have a better heating effect. The annular heating cover in the heating shell 3 can heat the consumables, and then the consumables will be discharged from the nozzle 4. The two fans in the heating shell 3 can heat and cool the device through the heat dissipation holes 5 and the heat dissipation mesh plate 7. Under the elastic force of the spring 64 on the block 63, the block 63 and the outer cylinder 65 The tight insertion can make the filter 66 tightly fixed with the limit ring 62 in the heat dissipation hole 5. The filter 66 can filter the air to prevent dust from entering the inside of the device, which can make the use effect of the device better. The moving block 63 is separated from the outer cylinder 65, and the outer cylinder 65 can be taken out to clean the filter 66. The sliding connection between the limit block 67 and the limit groove 68 is convenient for guiding the block 63 to be inserted into the outer cylinder 65. The positioning rod 614 is moved up to separate it from the positioning groove 611, and then the mounting block 612 is moved sideways to remove the heat dissipation mesh plate 7 for cleaning, which can make the heat dissipation effect of the device better. The mounting block 612 is slid into the rotating mounting groove 615. Under the pulling force of the tension spring 613, the positioning rod 614 and the positioning groove 611 are tightly inserted to make the mounting block 612 firmly installed and positioned.

[0037] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A consumable heating mechanism for a 3D printer, comprising a heating housing, characterized in that: A heat dissipation hole is opened on the side of the heating shell, a dustproof component is embedded in the heat dissipation hole, a nozzle is connected to the bottom of the heating shell, a heat dissipation mesh plate is embedded in the top of the heating shell, a connecting plate is connected to the top of the heating shell, a guide component is arranged on the top of the connecting plate, and a positioning sleeve is connected to the top of the connecting plate.

2. The consumable material heating mechanism of a 3D printer according to claim 1, characterized in that: The dustproof component includes an auxiliary component, a limiting ring, a clamping block, a spring, an outer cylinder and a filter screen, wherein a limiting ring is embedded in the heat dissipation hole, an outer cylinder is arranged on the side of the limiting ring, a filter screen is embedded in the outer cylinder, a clamping block is embedded in the inner bottom of the heat dissipation hole, a spring is connected to the bottom of the clamping block, a clamping groove is provided on the surface of the outer cylinder, an auxiliary component is provided on the top of the heating shell, and a plug-in structure is provided between the clamping block and the outer cylinder.

3. The consumable material heating mechanism of a 3D printer according to claim 2, characterized in that: The top of the heat dissipation hole is connected to the limiting groove, the surface of the outer cylinder is connected to the limiting block, the block is in an L-shaped structure, and the outer cylinder and the heating shell are in a split structure.

4. The consumable material heating mechanism of a 3D printer according to claim 2, characterized in that: The auxiliary component includes a positioning groove, a mounting block, a tension spring, a positioning rod and a mounting groove, wherein a mounting groove is opened on the top of the heating shell, the bottom of the mounting groove is connected to the positioning groove, the side of the heat dissipation mesh plate is connected to the mounting block, the positioning rod is embedded in the mounting block, and a tension spring is connected between the positioning rod and the mounting block.

5. The consumable material heating mechanism of a 3D printer according to claim 1, characterized in that: The guide assembly includes a limit plate, a transmission block, a side seat and a screw, wherein a side seat is provided on the top of the connecting plate, a screw is embedded in the side seat, two transmission blocks are sleeved on the surface of the screw, and the side of the transmission block is connected to the limit plate.

6. The consumable material heating mechanism of a 3D printer according to claim 5, characterized in that: The threads of the two end surfaces of the screw are in opposite directions. The surface of the screw inside the side seat is sleeved with a rotating block, which is in a circular ring structure, and a staggered structure is formed between the two limit plates.

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