Multi-point bottom plate heating process mechanism for 3D printing equipment

Abstract

The utility model discloses a multi-point bottom plate heating process mechanism for 3D printing equipment, and relates to the technical field of printing equipment heating mechanisms, the multi-point bottom plate heating process mechanism comprises an electric heating plate main body, conduction assemblies are installed on the two sides of the electric heating plate main body in a linear array at equal intervals, and each conduction assembly comprises a hollow cylinder, a contact head and a connecting plate; the conduction assemblies are arranged on the two sides of the electric heating plate at equal intervals, when a printed product needs to be heated, different micro motors are controlled according to needs, the height of the contact head is changed by rotating a push rod, surface contact is changed into point contact, and therefore the printed product can be heated through the contact head, the contact head is not prone to falling off, and the heating efficiency is greatly improved. When a printed product is heated, the heating area can be reduced, the fixed-point heating function is achieved, the structure that a heating part cannot heat is avoided, and the effect of protecting the printed product is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to printing equipment heating mechanism technical field especially relates to a kind of multi-point bottom plate heating process mechanism for 3D printing equipment. BACKGROUND

[0002] When 3D printing material is extruded from the nozzle, it will undergo a process from high temperature to cooling. By heating the printed product, the material cooling speed can be slowed down, the generation of thermal stress can be reduced, thereby effectively preventing the warping deformation of the printed part, and ensuring the dimensional accuracy and shape integrity of the printed product.

[0003] In the prior art, as disclosed in publication No. CN214562980U, a 3D printing device capable of heating printed products is disclosed, which includes a workbench and a printing device. The workbench is provided with a height-adjustable support platform and a driving mechanism for moving the printing device. The driving mechanism is provided with a detachable heating assembly. The heating assembly heats the printed products to reduce the cooling speed of the printed products.

[0004] However, in the prior art, when the 3D printing device heats the printed product, it usually heats the entire product. However, during the printing process, only the local area needs to be heated. The overall heating method will result in an excessively large heating area. When other areas that cannot be heated are also heated, these areas are prone to structural changes due to high temperature, which can easily affect the quality of the printed product. UTILITY MODEL CONTENT

[0005] The utility model aims to solve the problem of excessive heating area caused by the overall heating method in the prior art, which can easily affect the quality of the printed product. Therefore, a multi-point bottom plate heating process mechanism for 3D printing equipment is proposed.

[0006] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a multi-point bottom plate heating process mechanism for 3D printing equipment, including electric heating plate main part, the both sides of electric heating plate main part are installed with conductive assembly in linear whole column equal interval;

[0007] The conductive assembly includes a hollow cylinder, a contact head and a connecting plate. One end of the contact head is inserted into the hollow cylinder. The connecting plate is fixedly connected between one end of the electric heating plate main body and the other end of the hollow cylinder. The bottom of the contact head is movably connected with a push rod. The bottom of the push rod is fixedly connected with a micro motor. A cavity is formed in the interior of the contact head. A tension spring is fixedly installed on the inner wall of the cavity. One end of the tension spring is fixedly connected to the top of the push rod.

[0008] Preferably, the bottom of the electric heating plate body is fixedly connected with a base plate, and the bottom of the hollow cylinder is fixedly connected to the upper surface of the base plate.

[0009] Preferably, the top of the electric heating plate body is fixedly connected with a partition plate, and the contact head is inserted into the inside of the partition plate.

[0010] Preferably, a first inclined groove is formed in the outer wall of the push rod, and a second inclined groove is fixedly communicated with one end of the first inclined groove.

[0011] Preferably, the intersection of the first inclined groove and the second inclined groove is arranged in an inclined state.

[0012] Preferably, the bottom of the contact head is fixedly connected with a limiting ring, and a limiting rod is fixedly installed on one side of the limiting ring.

[0013] Preferably, a connecting block is fixedly connected to the outer wall of the limiting rod, the connecting block is slidably connected to the inside of the first inclined groove, and an inclined notch is formed in one corner of the connecting block.

[0014] Compared with the prior art, the utility model has the advantages and positive effects that:

[0015] 1、in the utility model, the conductive assembly is arranged at equal intervals on both sides of the electric heating plate, when it is needed to heat the printing product, different micro motors are controlled according to the requirement, the height of the contact head is changed by rotating the push rod, the surface contact is changed into point contact, when the printing product is heated, the heating area can be reduced, the function of fixed-point heating is realized, so as to avoid the structure that the heating part cannot be heated, and the printing product is protected.

[0016] 2、in the utility model, by setting the first inclined groove and the second inclined groove, in the process of rotating the push rod, the first inclined groove can make the contact head move downwards, and the second inclined groove pushes the contact head upwards, so as to guarantee the stability of the contact head in the moving process. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 a three-dimensional structure schematic diagram of the multi-point bottom plate heating process mechanism for the 3D printing equipment is provided for the utility model;

[0018] Figure 2 a top view of the electric heating plate body and the conductive assembly of the multi-point bottom plate heating process mechanism for the 3D printing equipment is provided for the utility model;

[0019] Figure 3 a conductive assembly internal structure schematic diagram of the multi-point bottom plate heating process mechanism for the 3D printing equipment is provided for the utility model;

[0020] Figure 4The utility model provides a kind of contact head internal structure schematic diagram of multi-point bottom plate heating process mechanism for 3D printing equipment;

[0021] Figure 5 The utility model provides a kind of contact head and interface block three-dimensional structure schematic diagram of multi-point bottom plate heating process mechanism for 3D printing equipment.

[0022] Legend: 1, electric heating plate main body;2, backing plate;3, partition plate;4, conduction assembly;41, hollow cylinder;42, contact head;43, connecting plate;44, push rod;45, first inclined groove;46, second inclined groove;47, limit ring;48, limit rod;49, interface block;410, bevel gap;411, cavity;412, tension spring. DETAILED DESCRIPTION

[0023] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model will be further described below in conjunction with the drawings and examples. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0024] In the following description, many specific details are set forth in order to provide a thorough understanding of the present application, however, the present application can also be implemented in other ways different from those described herein, therefore, the present application is not limited to the specific embodiments disclosed in the following description.

[0025] Embodiment one: as shown in Figure 1 、 Figure 2 、 Figure 3 and Figure 4 , the utility model provides a kind of multi-point bottom plate heating process mechanism for 3D printing equipment, including electric heating plate main body 1, the two sides of electric heating plate main body 1 are installed with conduction assembly 4 in linear alignment equal interval;

[0026] Conduction assembly 4 includes hollow cylinder 41, contact head 42 and connecting plate 43, one end of contact head 42 is inserted in the inside of hollow cylinder 41, one end between connecting plate 43 and electric heating plate main body 1 is fixedly connected, the other end between connecting plate 43 and hollow cylinder 41 is fixedly connected, the bottom of contact head 42 movably connects with push rod 44, the bottom of push rod 44 is fixedly connected with micro motor, cavity 411 is set in the inside of contact head 42, tension spring 412 is fixedly installed on the inner wall of cavity 411, one end of tension spring 412 is fixedly connected in the top of push rod 44;

[0027] The bottom of electric heating plate main body 1 is fixedly connected with backing plate 2, the bottom of hollow cylinder 41 is fixedly connected on the upper surface of backing plate 2, the top of electric heating plate main body 1 is fixedly connected with partition plate 3, contact head 42 is inserted in the inside of partition plate 3.

[0028] The specific settings and effects of the embodiment are described below. In use, the electric heating plate body 1 is installed at the bottom of a 3D printing device. The electric heating plate body 1 is an aluminum substrate heating plate. The micro motor is a 68KTYZ model. The micro motor is arranged in the cushion plate 2, which is used to determine the position of the entire electric heating plate body 1. When heating, the heat generated by the electric heating plate body 1 is transmitted to the hollow cylinder 41 through the connecting plate 43, and the contact head 42 absorbs the heat on the hollow cylinder 41.

[0029] The micro motor drives the push rod 44 to rotate, and the contact head 42 is pushed out of the partition plate 3 to contact the printed product, completing the fixed-point heating. According to the heating position selection, the micro motor at different positions can be controlled. The partition plate 3 is a heat insulation plate used to separate the printed product and the electric heating plate to avoid expanding the heating area.

[0030] The shape of the inner cavity 411 of the contact head 42 is matched with the push rod 44 to ensure that the contact head 42 can move downward and be sleeved above the push rod 44. The tension spring 412 is used to assist in supporting the contact head 42 to ensure that the contact head 42 can normally move up and down.

[0031] Embodiment two: as shown in Figure 3 , Figure 4 and Figure 5 , a first inclined groove 45 is formed on the outer wall of the push rod 44. One end of the first inclined groove 45 is fixedly connected with a second inclined groove 46. The intersection of the first inclined groove 45 and the second inclined groove 46 is arranged in an inclined state. The bottom of the contact head 42 is fixedly connected with a limiting ring 47. One side of the limiting ring 47 is fixedly installed with a limiting rod 48. The outer wall of the limiting rod 48 is fixedly connected with a connecting block 49. The connecting block 49 is slidingly connected in the first inclined groove 45. An inclined notch 410 is formed at one corner of the connecting block 49.

[0032] The effect of the entire embodiment is that the first inclined groove 45 and the second inclined groove 46 are connected and the intersection is in an inclined state. The connecting block 49 is slidingly connected in the first inclined groove 45. In the process of rotating the push rod 44, the first inclined groove 45 pushes the connecting block 49 to move downward. When the connecting block 49 enters the second inclined groove 46, the second inclined groove 46 pushes the connecting block 49 to move upward, thereby achieving the purpose of pushing the contact head 42. The inclined structure at the connection of the first inclined groove 45 and the second inclined groove 46 can ensure that the connecting block 49 can smoothly enter the first inclined groove 45 and the second inclined groove 46. The inclined notch 410 is used to ensure that the connecting block 49 can adapt to the shape of the second inclined groove 46.

[0033] The method for using and working principle of the device: the electric heating plate body 1 is installed at the bottom of the 3D printing equipment, when heating, the heat generated by the electric heating plate body 1 is transmitted to the hollow cylinder 41 through the connecting plate 43, the contact head 42 absorbs the heat on the hollow cylinder 41, the micro motor drives the push rod 44 to rotate, in the process of rotating the push rod 44, the first inclined groove 45 will push the adapter block 49 to move downward, after the adapter block 49 enters the second inclined groove 46, the second inclined groove 46 will push the adapter block 49 to move upward, so as to achieve the purpose of pushing the contact head 42;

[0034] The contact head 42 is pushed out of the partition plate 3 and contacts the printing product, and the fixed-point heating is completed, the micro motor at different positions can be controlled according to the heating position selection, and in the process of moving downward of the contact head 42, the shape of the cavity 411 is matched with the push rod 44, the contact head 42 can move downward and be sleeved above the push rod 44, and the tension spring 412 is used for assisting supporting the contact head 42, so that the contact head 42 can normally move up and down.

[0035] The above is only the preferred embodiment of the present application, and is not intended to limit the present application in other forms, and any skilled person in the art can modify or change the above disclosed technical content to equivalent embodiments applied to other fields, but any simple modification, equivalent change and modification of the above embodiments according to the technical essence of the present application still belong to the protection scope of the present application technical scheme.

Claims

1. A multi-point platen heating process mechanism for 3D printing equipment, comprising an electric heating plate body (1), characterized in that: The electric heating plate body (1) is linearly arranged and equidistantly mounted with the conductive assembly (4) on both sides; The conductive assembly (4) comprises a hollow cylinder (41), a contact head (42) and a connecting plate (43), one end of the contact head (42) is inserted into the hollow cylinder (41), one end of the connecting plate (43) is fixedly connected with the electric heating plate body (1), the other end of the connecting plate (43) is fixedly connected with the hollow cylinder (41), the bottom of the contact head (42) is movably connected with a push rod (44), the bottom of the push rod (44) is fixedly connected with a micro motor, the inside of the contact head (42) is provided with a cavity (411), the inner wall of the cavity (411) is fixedly installed with a tension spring (412), one end of the tension spring (412) is fixedly connected with the top of the push rod (44).

2. The multi-point platen heating process mechanism for a 3D printing device according to claim 1, wherein: The bottom of the electric heating plate body (1) is fixedly connected with a backing plate (2), and the bottom of the hollow cylinder (41) is fixedly connected to the upper surface of the backing plate (2).

3. The multi-point platen heating process mechanism for a 3D printing device according to claim 2, wherein: The top of the electric heating plate body (1) is fixedly connected with a partition plate (3), and the contact head (42) is inserted into the inside of the partition plate (3).

4. The multi-point platen heating process mechanism for a 3D printing device of claim 1, wherein: The outer wall of the push rod (44) is provided with a first inclined groove (45), and one end of the first inclined groove (45) is fixedly communicated with a second inclined groove (46).

5. The multi-point platen heating process mechanism for a 3D printing device according to claim 4, wherein: The intersection of the first inclined groove (45) and the second inclined groove (46) is arranged in an inclined state.

6. The multi-point platen heating process mechanism for a 3D printing device of claim 1, wherein: The bottom of the contact head (42) is fixedly connected with a limiting ring (47), and one side of the limiting ring (47) is fixedly installed with a limiting rod (48).

7. The multi-point platen heating process mechanism for a 3D printing device according to claim 6, wherein: The outer wall of the limiting rod (48) is fixedly connected with a connecting block (49), the connecting block (49) is slidably connected in the first inclined groove (45), and one corner of the connecting block (49) is provided with an inclined notch (410).

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