3D printer wax supply box

Abstract

The invention discloses a 3D printer wax supply box, comprising a main body and a shell, the main body comprising a base and a containing groove, the base is provided with a discharge channel, a connecting port, an intermediate cavity and a liquid outlet, the containing groove, the discharge channel, the connecting port, the intermediate cavity and the liquid outlet are connected in sequence, the connecting port is provided with a third plug, the third plug is connected with a driving rod, and a linear driver for driving the driving rod is provided on the left side of the base; the discharge channel, the connecting port, the third plug, the driving rod and the linear driver are collectively referred to as a first combination structure, and the number of the first combination structures is two; the main body is arranged in the shell, a heat dissipation space is provided between the base and the bottom wall of the shell, a heat dissipation hole is provided on the bottom wall of the shell, and a first bracket is connected between the base and the shell. A heat dissipation space is reserved between the base and the bottom wall of the shell, and the heat dissipated by the base can be dissipated from the heat dissipation space and the heat dissipation hole to the outside of the shell, thereby reducing the temperature in the wax supply box, and components such as the linear driver and the electrical connection circuit are not easy to fail or be damaged.

Description

Technical Field

[0001] The invention relates to the technical field of 3D printing, and in particular to a wax supply box for a 3D printer. Background Art

[0002] The wax-based 3D printer needs to be equipped with a wax supply box to melt the wax and then supply it to the print head. In order to prevent dust, dander and other impurities from floating in, patent CN202111680529.9 proposes a 3D printer feeding device, which is equipped with a heating box, a receiving tank, a solenoid valve and other components; it was found in use that this feeding device still has some shortcomings, for example, its heat dissipation effect is not good, and the heating box needs to be continuously heated to melt the wax, which leads to a high temperature in the wax supply box, which makes the solenoid valve, electrical connection circuit and other components easy to fail and damage. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems in the prior art. To this end, the present invention provides a 3D printer wax supply box.

[0004] A 3D printer wax supply box according to an embodiment of the present invention comprises a main body and a shell, the main body comprises a base and a containing groove, the base is provided with a discharge channel, a connecting port, an intermediate cavity and a liquid outlet, the containing groove, the discharge channel, the connecting port, the intermediate cavity and the liquid outlet are connected in sequence, the connecting port is provided with a third plug, the third plug is connected with a driving rod, a linear driver for driving the driving rod is provided on the left side of the base; the discharge channel, the connecting port, the third plug, the driving rod and the linear driver are collectively referred to as a first combined structure, and the number of the first combined structures is two; the main body is arranged in the shell, a heat dissipation space is provided between the base and the bottom wall of the shell, the bottom wall of the shell is provided with heat dissipation holes, and a first bracket is connected between the base and the shell.

[0005] The 3D printer wax supply box according to the embodiment of the present invention has at least the following technical effects: by setting two first combination structures, the two first combination structures can be used alternately to prevent the wax in the barrel from being consumed and causing interruption in supply; by setting a first bracket to support the base, a heat dissipation space is left between the base and the bottom wall of the shell, and the heat dissipated by the base can be dissipated from the heat dissipation space and the heat dissipation holes to the outside of the shell, thereby reducing the temperature in the wax supply box, and components such as the linear drive and the electrical connection circuit are not easily failed or damaged.

[0006] According to some embodiments of the present invention, a second bracket is connected between the linear drive and the housing. The linear drive does not need to be connected to the base, and the linear drive can be spaced apart from the base to prevent heat from the base from being directly transferred to the linear drive.

[0007] According to some embodiments of the present invention, the 3D printer wax supply box further comprises two slide rails disposed outside the housing, and the two slide rails are disposed on the front wall and the rear wall of the housing respectively. In this way, the 3D printer wax supply box can be slidably mounted on the 3D printer via the two slide rails, and the barrel can be taken and placed by pulling out the 3D printer wax supply box, and the bottom wall of the housing can be suspended and does not need to be close to other components of the 3D printer, so as to facilitate heat dissipation.

[0008] According to some embodiments of the present invention, the discharge channel is vertically arranged, a receiving groove is provided in the discharge channel along a vertical sliding direction, the top of the receiving groove is open, a third opening is provided at the bottom of the receiving groove, a first elastic member is connected between the receiving groove and the base, a first plug is provided in the receiving groove for blocking the third opening, a first connecting rod is vertically arranged at the bottom of the first plug, and the lower end of the first connecting rod is connected to the base. In this way, when not in use, the receiving groove is in a raised state under the action of the first elastic member, and the first plug blocks the third opening to prevent impurities such as dust, hair or animals such as insects and ants from entering the interior of the 3D printer through the third opening. When it needs to be restored to use, the receiving groove can be cleaned with a vacuum cleaner.

[0009] According to some embodiments of the present invention, a block is provided along the inner side of the base for horizontal sliding, a slot is provided on the left outer wall of the receiving groove, the block is provided with a snap-in portion and a push portion, the snap-in portion is provided in the slot, the push portion protrudes to the right from the base, a second elastic member is connected between the push portion and the base, and the housing is provided with a driving device for driving the push portion. By providing the block and the driving device, when the barrel is put into use, the barrel presses down the receiving groove, so that the slot drops to be level with the block, and the block moves to the right under the action of the second elastic member, so that the snap-in portion is inserted into the slot; when the wax liquid in the barrel is about to flow out, the block can prevent the receiving groove from moving up, so that the wax liquid in the barrel can flow out completely; when the wax liquid in the barrel flows out completely, the driving device drives the block to move to the left, the snap-in portion leaves the slot, and the receiving groove moves upward to close the discharge channel.

[0010] According to some embodiments of the present invention, the driving device includes a mounting seat, a crossbar and a vertical bar, the crossbar is arranged on the right side of the pushing part, the crossbar is connected to the mounting seat in a left-right sliding manner, and the right end of the crossbar is provided with a first inclined surface; the vertical bar is connected to the mounting seat in an up-down sliding manner, the lower end of the vertical bar is provided with a second inclined surface, the first inclined surface and the second inclined surface are in contact with each other, the first inclined surface and the second inclined surface are both arranged to be inclined downward from the left, and a pressing plate is provided at the top of the vertical bar. In this way, pressing the pressing plate can move the second inclined surface downward, thereby moving the first inclined surface to the left, that is, the crossbar moves to the left, and the crossbar pushes the pushing part to move to the left, thereby driving the pushing part.

[0011] According to some embodiments of the present invention, a contact block is provided at the right end of the pushing portion, and the cross-sectional area of ​​the contact block is larger than the cross-sectional area of ​​the cross bar, so as to prevent the pushing portion and the cross bar from being misaligned, and enable the cross bar to stably push the pushing portion.

[0012] According to some embodiments of the present invention, the second elastic member is connected between the abutment block and the base, so that the second elastic member is arranged outside the base, which is convenient for inspection and replacement.

[0013] According to some embodiments of the present invention, the second elastic member is a spring, which has a simple structure and low cost.

[0014] According to some embodiments of the present invention, the second elastic member is sleeved outside the pushing portion, which can prevent the second elastic member from falling and stabilize the structure.

[0015] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0017] Figure 1 3D printer wax supply box according to an embodiment of the present invention;

[0018] Figure 2 is a schematic cross-sectional view of a 3D printer wax supply box according to an embodiment of the present invention;

[0019] Figure 3 yes Figure 2 An enlarged schematic diagram of the base in FIG.

[0020] In the attached figure:

[0021] 100-housing; 101-first bracket; 102-second bracket; 103-slide rail; 104-heat dissipation hole; 200-base; 203-discharging channel; 204-middle cavity; 205-liquid outlet; 210-linear drive; 211-third plug; 212-driving rod; 220-receiving groove; 221-first plug; 222-first connecting rod; 223-orifice plate; 224-first elastic member; 229-limiting groove; 251-snapping part; 252-sliding plate; 253-top rod; 254-second elastic member; 300-accommodating groove; 401-pressing plate; 402-vertical rod; 403-horizontal rod; 404-mounting seat. DETAILED DESCRIPTION

[0022] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0023] In the description of the present invention, it should be understood that the directions or positional relationships indicated, such as up, down, front, back, left, right, etc., are based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the meaning of "several" is one or more, the meaning of "many" is more than two, greater than, less than, exceed, etc. are understood to exclude the number itself, and above, below, within, etc. are understood to include the number itself. If there is a description of the first and the second, it is only for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0024] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0025] Reference below Figures 1 to 3 A wax supply box for a 3D printer according to an embodiment of the present invention is described.

[0026] The wax supply box of a 3D printer according to an embodiment of the present invention comprises a main body and a shell 100, wherein the main body comprises a base 200 and a receiving groove 300, wherein the base 200 is provided with a discharge channel 203, a connecting port, an intermediate cavity 204 and a liquid outlet 205, wherein the receiving groove 300, the discharge channel 203, the connecting port, the intermediate cavity 204 and the liquid outlet 205 are sequentially connected, wherein the connecting port is provided with a third plug 211, wherein the third plug 211 is connected with a driving rod 212, and a linear driver 210 for driving the driving rod 212 is provided on the left side of the base 200; the discharge channel 203, the connecting port, the third plug 211, the driving rod 212 and the linear driver 210 are collectively referred to as a first combination structure, and the number of the first combination structures is two; the main body is arranged in the shell 100, a heat dissipation space is arranged between the base 200 and the bottom wall of the shell 100, a heat dissipation hole 104 is arranged on the bottom wall of the shell 100, and a first bracket 101 is connected between the base 200 and the shell 100.

[0027] For example, Figure 1As shown, the receiving groove 300 is arranged on the upper side of the base 200, and the top of the receiving groove 300 is open. The receiving groove 300 is used to place the cartridge. The top wall of the shell 100 is provided with an opening corresponding to the receiving groove 300 so that the cartridge can be placed in the receiving groove 300 from top to bottom.

[0028] The discharge channel 203 extends vertically, the top of the discharge channel 203 passes through the base 200 and is connected to the accommodating groove 300, the middle cavity 204 is arranged on the left side of the discharge channel 203, and a connecting channel is arranged between the middle cavity 204 and the discharge channel 203, one end of the connecting channel is connected to the bottom of the discharge channel 203, and the other end of the connecting channel is connected to the middle cavity 204, and the connecting point is the connecting port, which is arranged on the right wall of the middle cavity 204; the third plug 211 is arranged in the middle cavity 204 and blocks the connecting port from left to right, the driving rod 212 is arranged horizontally, the right end of the driving rod 212 is connected to the third plug 211, and the left end of the driving rod 212 passes through the left wall of the middle cavity 204 and extends to the left side of the base 200 The linear drive 210 may be a solenoid valve. When the linear drive 210 is energized, it drives the driving rod 212 to move to the left, so that the third plug 211 leaves the connecting port, thereby allowing the wax liquid in the discharge channel 203 to flow to the middle cavity 204; a third spring is arranged in the middle cavity 204, and the third spring is sleeved on the outside of the driving rod 212. The two ends of the third spring are respectively in contact with the left wall of the middle cavity 204 and the third plug 211. When the linear drive 210 loses power, the driving rod 212 and the third plug 211 move to the right under the action of the third spring, so that the third plug 211 blocks the connecting port; of course, in some other embodiments of the present invention, the linear drive 210 may also be a linear motor, a cylinder, an electric push rod or other suitable devices.

[0029] Reference Figure 2 The left side of the shell 100 is open, the liquid outlet 205 is arranged on the left wall of the middle cavity 204, and the liquid outlet 205 is provided with a liquid outlet pipe extending to the left. The electrical connection wires between the 3D printer wax supply box and the 3D printer, the pipeline for supplying wax and other structures can be arranged on the left side of the shell 100, and the right wall of the shell 100 is arranged on the outside of the 3D printer; the first bracket 101 is arranged between the right wall of the shell 100 and the base 200. Of course, in some other embodiments of the present invention, the first bracket 101 can also be arranged between the bottom wall of the shell 100 and the base 200, and can also be arranged between the front wall of the shell 100 and the base 200, as long as it can support the base 200; the heat dissipation hole 104 vertically penetrates the bottom wall of the shell 100, and the number of the heat dissipation holes 104 can be multiple.

[0030] The two first combination structures are spaced apart from each other and are connected to the same middle cavity 204. When in use, only one of the third plugs 211 can be opened. When the wax in the current barrel is consumed, the third plug 211 is closed and the other third plug 211 is opened to replace the barrel.

[0031] By providing two first combination structures, the two first combination structures can be used alternately to prevent the wax in the barrel from being consumed and causing interruption in feeding; by providing the first bracket 101 to support the base 200, a heat dissipation space is reserved between the base 200 and the bottom wall of the shell 100, and the heat dissipated by the base 200 can be dissipated from the heat dissipation space and the heat dissipation holes 104 to the outside of the shell 100, thereby reducing the temperature in the wax supply box, and the linear drive 210, the electrical connection circuit and other components are not easy to fail and damage; at the same time, the linear drive 210 is arranged outside the base 200, which is convenient for the heat dissipation of the linear drive 210. In addition, a heat dissipation space can be arranged between the front wall and the main body of the shell 100, and the heat dissipation holes 104 are also arranged on the front wall of the shell 100.

[0032] In some embodiments of the present invention, a second bracket 102 is connected between the linear drive 210 and the housing 100. By providing the second bracket 102 to support the linear drive 210, the linear drive 210 does not need to be connected to the base 200, and the linear drive 210 can be spaced apart from the base 200 to prevent the heat of the base 200 from being directly transferred to the linear drive 210; the second bracket 102 is provided between the bottom wall of the housing 100 and the linear drive 210. Of course, in some other embodiments of the present invention, the second bracket 102 can also be provided between the front wall of the housing 100 and the linear drive 210, as long as it can support the linear drive 210.

[0033] In some embodiments of the present invention, the 3D printer wax supply box further includes two slide rails 103 disposed outside the housing 100, and the two slide rails 103 are respectively disposed on the front wall and the rear wall of the housing 100. The two slide rails 103 are both disposed horizontally, so that the 3D printer wax supply box can be slidably installed on the 3D printer through the two slide rails 103, and the barrel can be taken and placed by pulling out the 3D printer wax supply box, and the bottom wall of the housing 100 can be suspended and does not need to be close to other components of the 3D printer, so as to facilitate heat dissipation.

[0034] In some embodiments of the present invention, the discharge channel 203 is vertically arranged, and a receiving groove 220 is vertically slidably arranged in the discharge channel 203. The top of the receiving groove 220 is open, and a third opening is arranged at the bottom of the receiving groove 220. A first elastic member 224 is connected between the receiving groove 220 and the base 200. A first plug 221 for blocking the third opening is arranged in the receiving groove 220, and a vertically arranged first connecting rod 222 is arranged at the bottom of the first plug 221. The lower end of the first connecting rod 222 is connected to the base 200. It should be noted that the barrel may use the barrel proposed in patent CN202111680529.9, that is, a protrusion is arranged at the bottom of the barrel, and the protrusion can be inserted into the top of the receiving groove 220, and the protrusion is provided with an opening so that the wax liquid in the barrel can flow from the protrusion to the receiving groove 220; refer to Figure 3 The receiving groove 220 is in a vertically arranged cylindrical shape, the inner diameter of the upper portion of the receiving groove 220 is larger than the inner diameter of the lower portion of the receiving groove 220, the third opening is arranged at the bottom of the lower portion of the receiving groove 220, and the inner diameter of the lower portion of the receiving groove 220 is larger than the inner diameter of the third opening;

[0035] The receiving groove 220 slides along the discharge channel 203 and has a raised state and a lowered state. In the raised state, the edge of the first plug 221 is sealed and abutted against the third opening, and in the lowered state, the first plug 221 is separated from the third opening; the discharge channel 203 has a first section and a second section, the first section is arranged on the upper side of the second section, the diameter of the first section is larger than the diameter of the second section, the receiving groove 220 is arranged in the first section, and a perforated plate 223 is arranged at the bottom of the first section, the perforated plate 223 is abutted against the second section, and the bottom of the first connecting rod 222 is fixedly connected to the perforated plate 223, so that the receiving groove 220, the first connecting rod 222 and the perforated plate 223 can be moved from the discharge channel The first elastic member 224 is a spring, which is sleeved on the outside of the first connecting rod 222, and the two ends of the first elastic member 224 are respectively in contact with the receiving groove 220 and the orifice plate 223. The receiving groove 220 is in a lowered state when the first elastic member 224 is in a compressed state. In this way, when not in use, the receiving groove 220 is in a raised state under the action of the first elastic member 224, and the first plug 221 blocks the third opening to prevent dust, hair and other impurities or animals such as insects and ants from entering the interior of the 3D printer through the third opening. When it needs to be restored to use, the receiving groove 300 can be cleaned with a vacuum cleaner.

[0036] In some embodiments of the present invention, a card block is provided in the base 200 for horizontal sliding, a card slot is provided on the left outer wall of the receiving groove 220, the card block is provided with a card-in portion 251 and a pushing portion, the card-in portion 251 is provided in the card slot, the pushing portion protrudes to the right from the base 200, a second elastic component 254 is connected between the pushing portion and the base 200, and the housing 100 is provided with a driving device for driving the pushing portion. In the raised state, the slot is arranged above the block; in the lowered state, the slot is flush with the block, and the block moves to the right under the action of the second elastic member 254, so that the snap-in portion 251 is inserted into the slot; the slot can extend into a ring along the outer periphery of the receiving groove 220, and the block can be a transversely arranged sliding plate 252, and a transversely arranged top rod 253 is arranged at the right end of the sliding plate 252, and a vertically arranged avoidance through hole is arranged in the middle of the sliding plate 252, and the receiving groove 220 passes through the avoidance through hole, and the left part of the sliding plate 252 is the snap-in portion 251, and the front, rear, right part of the sliding plate 252 and the top rod 253 are combined to form a pushing portion, and the top rod 253 extends to the right to the outside of the base 200.

[0037] During use, it was found that if the elastic force of the first elastic component 224 is relatively small, it is difficult to make the first plug 221 and the third opening fit tightly after the barrel is taken out, and the sealing effect is poor; if the elastic force of the first elastic component 224 is relatively large, then when the wax liquid in the barrel is about to flow out, the weight of the barrel decreases, and the first elastic component 224 pushes the receiving groove 220 upward, resulting in the wax liquid in the barrel cannot flow out completely, causing waste. In this embodiment, a clamping block and a driving device are provided. When the material barrel is put into use, the material barrel presses down the receiving groove 220 so that the groove drops to be level with the clamping block. The clamping block moves to the right under the action of the second elastic member 254 to insert the clamping portion 251 into the groove. When the wax liquid in the material barrel is about to flow out, the clamping block can prevent the receiving groove 220 from moving upward so that the wax liquid in the material barrel can flow out completely. After the wax liquid in the material barrel has completely flowed out, the driving device drives the clamping block to move to the left, the clamping portion 251 leaves the groove, and the receiving groove 220 moves upward to close the discharge channel 203.

[0038] In some embodiments of the present invention, the driving device includes a mounting seat 404, a horizontal bar 403 and a vertical bar 402. The horizontal bar 403 is arranged on the right side of the pushing part. The horizontal bar 403 is connected to the mounting seat 404 for left-right sliding. The right end of the horizontal bar 403 is provided with a first inclined surface. The vertical bar 402 is connected to the mounting seat 404 for up and down sliding. The lower end of the vertical bar 402 is provided with a second inclined surface. The first inclined surface and the second inclined surface are abutted. The first inclined surface and the second inclined surface are both arranged to be inclined downward from the left, and a pressing plate 401 is provided at the top of the vertical bar 402. The mounting seat 404 is mounted on the right wall of the housing 100 by bolts, the horizontal bar 403 is arranged horizontally, the vertical bar 402 is arranged vertically, the mounting seat 404 is provided with a first sliding hole corresponding to the horizontal bar 403, the horizontal bar 403 is arranged in the first sliding hole to achieve sliding connection, the mounting seat 404 is provided with a second sliding hole corresponding to the vertical bar 402, the vertical bar 402 is arranged in the second sliding hole to achieve sliding connection; the top wall of the housing 100 is provided with a groove corresponding to the vertical bar 402, the vertical bar 402 passes through the bottom of the groove, the pressing plate 401 is arranged in the groove, and a spring is arranged in the groove and on the lower side of the pressing plate 401 to promote the resetting of the vertical bar 402 and the pressing plate 401. In this way, pressing the pressing plate 401 can move the second inclined surface downward, thereby moving the first inclined surface to the left, that is, the horizontal bar 403 moves to the left, and the horizontal bar 403 pushes the push part to move to the left, thereby driving the push part.

[0039] A limiting groove 229 can also be provided on the receiving groove 220. The structure of the limiting groove 229 is consistent with that of the card slot. The limiting groove 229 is provided below the card slot. In this way, after the wax liquid in the barrel has completely flowed out, the pressing plate 401 is pressed down to make the first elastic component 224 lift up the receiving groove 220. Then, the pressing plate 401 can be released immediately to make the snap-in portion 251 snap into the limiting groove 229, thereby preventing the receiving groove 220 from completely flying out of the discharge channel 203 under the action of the first elastic component 224 and inertia.

[0040] In some embodiments of the present invention, an abutment block is provided at the right end of the push portion, and the cross-sectional area of ​​the abutment block is larger than the cross-sectional area of ​​the cross bar 403. This can prevent the push portion and the cross bar 403 from being misaligned, so that the cross bar 403 can stably push the push portion; of course, an abutment block can also be provided at the left end of the cross bar 403.

[0041] In some embodiments of the present invention, the second elastic member 254 is connected between the abutment block and the base 200. In this way, the second elastic member 254 is arranged outside the base 200, which is convenient for inspection and replacement.

[0042] In some embodiments of the present invention, the second elastic member 254 is a spring, which has a simple structure and low cost.

[0043] In some embodiments of the present invention, the second elastic member 254 is sleeved outside the push portion. The second elastic member 254 is sleeved outside the top rod 253; this can prevent the second elastic member 254 from falling off, and the structure is stable.

[0044] The preferred embodiments of the present invention are specifically described above, but the present invention is not limited to the embodiments. Those skilled in the art may make various equivalent modifications or substitutions without violating the spirit of the present invention. These equivalent modifications or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A 3D printer wax supply box, characterized in that: include: The main body comprises a base (200) and a receiving groove (300); the base (200) is provided with a discharge channel (203), a communication port, an intermediate cavity (204) and a liquid outlet (205); the receiving groove (300), the discharge channel (203), the communication port, the intermediate cavity (204) and the liquid outlet (205) are connected in sequence; the communication port is provided with a third plug (211); the third plug (211) is connected to a driving rod (212); a linear driver (210) for driving the driving rod (212) is provided on the left side of the base (200); the discharge channel (203), the communication port, the third plug (211), the driving rod (212) and the linear driver (210) are collectively referred to as a first combined structure, and the number of the first combined structures is two; A housing (100), the main body being arranged inside the housing (100), a heat dissipation space being arranged between the base (200) and the bottom wall of the housing (100), a heat dissipation hole (104) being arranged on the bottom wall of the housing (100), and a first bracket (101) being connected between the base (200) and the housing (100); The discharge channel (203) is arranged vertically, and a receiving groove (220) is arranged in the discharge channel (203) for vertical sliding, the top of the receiving groove (220) is open, and the bottom of the receiving groove (220) is provided with a third opening, a first elastic component (224) is connected between the receiving groove (220) and the base (200), a first plug (221) for blocking the third opening is arranged in the receiving groove (220), and a first connecting rod (222) arranged vertically is arranged at the bottom of the first plug (221), and the lower end of the first connecting rod (222) is connected to the base (200); A clamping block is provided in the base (200) for transverse sliding, a clamping slot is provided on the left outer wall of the receiving slot (220), the clamping block is provided with a clamping portion (251) and a pushing portion, the clamping portion (251) is provided in the clamping slot, the pushing portion protrudes rightward from the base (200), a second elastic member (254) is connected between the pushing portion and the base (200), and the housing (100) is provided with a driving device for driving the pushing portion; The driving device comprises a mounting seat (404), a cross bar (403) and a vertical bar (402); the cross bar (403) is arranged on the right side of the pushing portion; the cross bar (403) is connected to the mounting seat (404) in a left-right sliding manner; the right end of the cross bar (403) is provided with a first inclined surface; the vertical bar (402) is connected to the mounting seat (404) in an up-down sliding manner; the lower end of the vertical bar (402) is provided with a second inclined surface; the first inclined surface and the second inclined surface are in contact with each other; the first inclined surface and the second inclined surface are both arranged to be inclined downward from the left rear; and a pressing plate (401) is provided at the top end of the vertical bar (402).

2. The 3D printer wax supply box according to claim 1, characterized in that: A second bracket (102) is connected between the linear drive (210) and the housing (100).

3. The 3D printer wax supply box according to claim 1, characterized in that: It also comprises two slide rails (103) arranged outside the shell (100), and the two slide rails (103) are respectively arranged on the front wall and the rear wall of the shell (100).

4. The 3D printer wax supply box according to claim 1, characterized in that: An abutment block is provided at the right end of the pushing portion, and the cross-sectional area of ​​the abutment block is larger than the cross-sectional area of ​​the cross bar (403).

5. The 3D printer wax supply box according to claim 4, characterized in that: The second elastic member (254) is connected between the abutment block and the base (200).

6. The 3D printer wax supply box according to claim 5, characterized in that: The second elastic component (254) is a spring.

7. The 3D printer wax supply box according to claim 6, characterized in that: The second elastic component (254) is sleeved outside the pushing portion.

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