Heating bed of printer

Abstract

The utility model provides a heating bed of a printer, which comprises a hot bed plate, a display device and an on-off key, and the hot bed plate comprises a first heating area and a second heating area. According to the heating bed of the printer, when a product model is printed, the on-off key is started to control the first heating area to heat or the first heating area and the second heating area to heat at the same time, and in the heating process of the hot bed plate, the temperature of the hot bed plate can be visually observed by observing the display device connected to the hot bed plate; therefore, the hot bed plate is not required to be connected with external equipment, and observation is more visual and more convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to printer technical field, especially a kind of heating bed of printer. BACKGROUND

[0002] Heating bed is one of main functional components of fused deposition method 3D printer, that is, the physical platform of bearing printing object, and is the object of initial deposition effect, heating bed is to let the high-temperature molten material that 3D printer extrusion head spits out can form thin and flat initial printing surface on hot bed, and ensure that the printing surface and hot bed surface are firmly bonded. In the prior art, when checking the temperature of the heating bed of the printer, the heating bed needs to be connected to an external device. The heating bed needs to be connected to the external device, which requires additional wiring. This not only wastes time, but also cannot directly observe the real-time temperature of the heating bed, making observation inconvenient.

[0003] Therefore, there is a need to provide a heating bed for a printer to solve the above technical problems. UTILITY MODEL CONTENT

[0004] The utility model provides a kind of heating bed of printer, solve the problem that additional connection external device is needed in the prior art heating bed of printer, cannot directly observe the real-time temperature of heating bed, inconvenient to observe.

[0005] To solve the above technical problems, the technical scheme of the utility model is as follows: a heating bed for a printer, characterized by comprising a hot bed plate, a display device connected to one side of the hot bed plate for displaying the temperature of the hot bed plate, and a key connected to the hot bed plate for switching between the first heating area and the first heating area and the second heating area.

[0006] In the utility model, the display device comprises a heat insulation plate and a display connected to the heat insulation plate.

[0007] In the utility model, the heat insulation plate is provided with a strip-shaped groove extending along the length direction of the heat insulation plate for placing the display.

[0008] In the utility model, one side of the heat insulation plate is further provided with a fixing plate having a thickness smaller than that of the heat insulation plate, and an L-shaped clamping groove is formed between the fixing plate and the heat insulation plate for fitting adjacent two sides of the hot bed plate.

[0009] In the utility model, one side of the hot bed plate is further provided with a heat insulation seat, and the key is connected to the heat insulation seat.

[0010] The utility model discloses a heat bed plate's bottom still be provided with thermistor.

[0011] The utility model discloses a first heating area with a plurality of through slots is arranged between the first heating area and the second heating area.

[0012] The utility model discloses a heat bed plate is made of metal material.

[0013] The utility model discloses a heat bed plate is provided with input power supply circuit, and the heating bed is connected with the power supply through the input power supply circuit.

[0014] The utility model discloses an input power supply circuit includes input interface J13, fuse F1, MOS tube Q9, diode D53, and the input interface J13 is connected with the power supply, and one end of the fuse F1 is connected with the input interface J13, and the other end of the fuse F1 is connected with the source of MOS tube Q9, and the grid of MOS tube Q9 is connected with the positive pole of diode D53, and the drain of MOS tube Q9 is connected with the negative pole of diode D53.

[0015] Compared with the prior art, the utility model has the beneficial effects that: the heating bed of the printer of the utility model, when printing product model, starts the key control first heating area heating or first heating area and second heating area simultaneous heating, and the heat bed plate can be observed the temperature of the heat bed plate through the display device connected on the heat bed plate in the process of heating, so that the heat bed plate connected external equipment is saved, and the observation is more intuitive, and the observation is more convenient. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical scheme in the embodiment of the utility model or prior art, the following briefly introduces the drawing needed to be used in the embodiment, and the drawing in the following description is only the part of the corresponding drawing of the utility model.

[0017] Figure 1 It is the perspective view of the heating bed of the printer of the utility model.

[0018] Figure 2 It is the perspective view of the heat insulation plate of the heating bed of the printer of the utility model.

[0019] Figure 3 It is the input power supply circuit diagram.

[0020] Figure 4 It is the first button circuit diagram.

[0021] Figure 5 It is the second button circuit diagram.

[0022] EXPLANATION OF DRAWINGS:

[0023] 11, hot bed plate; 12, display device; 13, key; 111, first heating area; 112, second heating area; 113, through slot; 121, heat insulation plate; 122, display; 131, heat insulation seat; 1211, strip-shaped slot; 1212, fixed plate; SW3, first button; SW4, second button; J13, input interface; F1, fuse; Q9, MOS tube; D53, diode; C113, input capacitor. DETAILED DESCRIPTION

[0024] In order to make the objects, technical solutions and advantages of the embodiments of the present disclosure clearer, the technical solutions of the embodiments of the present disclosure will be described clearly and completely below with reference to the drawings of the embodiments of the present disclosure. Obviously, the described embodiments are only a part of the embodiments of the present disclosure, rather than all the embodiments of the present disclosure. Based on the described embodiments of the present disclosure, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present disclosure.

[0025] Unless otherwise defined, the technical terms or scientific terms used herein should be understood as the common meanings to those of ordinary skill in the art to which the present disclosure belongs.

[0026] The terms "first", "second", and similar terms used in the patent application specification and claims of the present disclosure do not denote any order, quantity, or importance, but are only used to distinguish different components. The terms "include" or "contain" and similar terms mean that the elements or objects appearing before "include" or "contain" cover the elements or objects listed after "include" or "contain" and their equivalents, and do not exclude other elements or objects. The terms "connect" or "connected" and similar terms are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. The terms "up", "down", "left", "right", and the like are only used to represent relative positional relationships, and when the absolute positions of the described objects change, the relative positional relationships may also change accordingly.

[0027] The technical solutions in the embodiments of the present disclosure will be described clearly and completely below with reference to the drawings in the embodiments of the present disclosure. Obviously, the described embodiments are only a part of the embodiments of the present disclosure, rather than all the embodiments of the present disclosure. Based on the embodiments in the present disclosure, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present disclosure.

[0028] The following is a preferred embodiment of a heating bed of a printer provided by the present utility model, which can solve the above technical problems.

[0029] Please refer to Figure 1 and Figure 2 wherein Figure 1 is a structural schematic view of a preferred embodiment of the heating bed of the printer of the utility model, Figure 2 is a rear view of the preferred embodiment of the heating bed of the printer of the utility model.

[0030] In the drawings, similar elements are denoted by the same reference numerals.

[0031] The terms "first", "second", etc. in the utility model are only for the purpose of description, and cannot be understood as indicating or implying relative importance, and are not as a limitation on the order.

[0032] The utility model provides a kind of heating bed of printer, including hot bed plate 11, display device 12 for showing the temperature of hot bed plate 11 connected in hot bed plate 11 one side and key 13 connected on hot bed plate 11, hot bed plate 11 includes the first heating area 111 of the middle region of hot bed plate 11 and the second heating area 112 of the first heating area 111 periphery, key 13 is used to switch the first heating area 111 or the first heating area 111 and second heating area 112 simultaneous heating, display device 12 shows the real-time temperature of the first heating area 111 heating and the real-time temperature of the first heating area 111 and second heating area 112 simultaneous heating, hot bed plate 11 is used to carry the model of printing, key 13 is used to control the first heating area 111 heating or simultaneously to the first heating area 111 and second heating area 112 heating, display device 12 is used to show the temperature on hot bed plate 11, when printing model, first, press key 13 to select the first heating area 111 heating or simultaneously to the first heating area 111 and second heating area 112 heating, when selecting heating area, hot bed plate 11 starts heating, hot bed plate 11 can be observed by observing display device 12 connected on hot bed plate 11 directly observe the temperature on hot bed plate 11 in the process of heating, so as to control the temperature on hot bed plate 11 and carry out model printing, prevent the temperature of hot bed plate 11 too high or too low, by observing display device 12 connected on hot bed plate 11, the temperature on hot bed plate 11 can be directly observed, so that hot bed plate 11 is connected to external equipment, and it is more intuitive when observing, and it is more convenient to observe.

[0033] As Figure 4 and Figure 5 shown, the key 13 includes first button SW3 and second button SW4, the first button SW3 is used to control the first heating area 111 heating, and the second button SW4 is used to control the first heating area 111 and second heating area 112 simultaneous heating.

[0034] The display device 12 comprises a heat insulation plate 121 and a display 122 connected in the heat insulation plate 121, the heat insulation plate 121 is used for mounting the display 122, and meanwhile, the heat insulation plate 121 is used for isolating the temperature on the hot bed plate 11 to prevent the temperature on the hot bed plate 11 from being conducted on the display 122 to cause damage to the display 122.

[0035] A strip-shaped slot 1211 is arranged on the heat insulation plate 121 and extends along the length direction of the heat insulation plate 121 and is used for placing the display 122, and the strip-shaped slot 1211 is used for limiting the display 122 so that the display 122 can be stably connected on the heat insulation plate 121.

[0036] In the embodiment, the display 122 is an LED screen, one side of the LED screen can display numbers, and the other side of the LED screen is a lattice progress bar which presents different colors when reaching different intervals.

[0037] One side of the heat insulation plate 121 is further provided with a fixed plate 1212 with a thickness smaller than that of the heat insulation plate 121, and an L-shaped clamping groove for abutting two adjacent sides of the hot bed plate 11 is formed between the fixed plate 1212 and the heat insulation plate 121, the fixed plate 1212 is used for abutting the bottom surface of the hot bed plate 11, and the heat insulation plate 121 is located on one side of the hot bed plate 11, which can stably abut in the hot bed plate 11, and can avoid shaking on the hot bed plate 11.

[0038] One side of the hot bed plate 11 is further provided with a heat insulation seat 131, and the key 13 is connected in the heat insulation seat 131, the heat insulation seat 131 is used for mounting the key 13, and meanwhile, the heat insulation seat 131 is used for blocking the temperature of the hot bed plate 11 to prevent the temperature of the hot bed plate 11 from being conducted on the key 13 to prevent damage to the key 13.

[0039] The bottom of the hot bed plate 11 is further provided with a thermistor, which is used for measuring the temperature of the hot bed plate 11 to facilitate the display 122 to display the temperature of the thermistor and facilitate the operator to observe.

[0040] In the embodiment, the model of the thermistor is NTC, and the thermistor is electrically connected with the display device 12.

[0041] A plurality of through grooves 113 are further arranged between the first heating area 111 and the second heating area 112, the through grooves 113 are used for conveniently distinguishing the first heating area 111 and the second heating area 112 to facilitate the operator to intuitively observe the range of the printed model.

[0042] The hot bed plate 11 is made of metal material, which can be aluminum, stainless steel, copper, but is not limited to only aluminum, copper or stainless steel.

[0043] AsFigure 3 As shown, the input power circuit is arranged on the hot bed plate 11, and the heating bed is connected to the power supply through the input power circuit. The input power circuit comprises an input interface J13, a fuse F1, a MOS tube Q9 and a diode D53. The input interface J13 is connected to the power supply, one end of the fuse F1 is connected to the input interface J13, the other end of the fuse F1 is connected to the source of the MOS tube Q9, the gate of the MOS tube Q9 is connected to the positive electrode of the diode D53, and the drain of the MOS tube Q9 is connected to the negative electrode of the diode D53.

[0044] In this embodiment, the fuse F1 is connected in series between the input interface J13 and the source of the MOS tube Q9, for overcurrent protection. When the input current is abnormal (such as short circuit), the fuse F1 is fused to cut off the power supply path and prevent the subsequent circuit from burning out. When the heating bed detects overcurrent, the MOS tube Q9 is quickly turned off through the gate signal (such as PWM), which is faster than the response of the fuse F1 (μs level). If the power supply is reversed, the diode D53 is reverse-biased to block the current from flowing into the circuit. In this embodiment, a Schottky diode D53 is used, and the body diode D53 of the MOS tube Q9 is not conductive due to reverse bias, forming double protection. By slowly raising the gate voltage of the MOS tube Q9, the MOS tube Q9 is gradually turned on to avoid current impact when the input capacitor C113 is charged.

[0045] The gate of the MOS tube Q9 is connected to the control signal, and the drain of the MOS tube Q9 is connected to the negative electrode of the diode D53 to realize electronic switching and reverse connection protection. The positive electrode of the diode D53 is connected to the ground, and is cut off when the power supply is reversed, and forms double isolation with the body diode D53 of the MOS tube Q9.

[0046] Working principle:

[0047] When printing the model of the product, the operator presses the key 13 to select the hot bed plate 11 for heating. The first heating area 111 of the heating bed can be heated or the first heating area 111 and the second heating area 112 can be heated at the same time. During the heating process of the hot bed plate 11, the heat conduction of the hot bed plate 11 is blocked on the display 122 due to the role of the heat insulation plate 121, thereby effectively protecting the display 122. During the heating process of the hot bed plate 11, the thermistor senses the temperature of the hot bed plate 11 and transmits it to the display 122, and the display 122 displays the real-time temperature of the hot bed plate 11. When observing the temperature of the hot bed plate 11, the operator can directly observe the temperature on the hot bed plate 11 through the display device 12 connected to the hot bed plate 11, thereby saving the connection of the hot bed plate 11 to the external equipment, and the observation is more intuitive and convenient.

[0048] The heating bed of the printer of the preferred embodiment can directly observe the temperature of the heating bed plate by observing the display device connected to the heating bed plate during the heating process when printing a product model, so that the heating bed plate is connected to an external device, and the observation is more intuitive and convenient.

[0049] In summary, although the preferred embodiment of the present application has been disclosed as above, the above preferred embodiment is not intended to limit the present application, and those skilled in the art can make various modifications and embellishments without departing from the spirit and scope of the present application. Therefore, the protection scope of the present application is defined by the scope of the claims.

Claims

1. A heated platen of a printer, characterized by, The hot bed plate, the display device for displaying the temperature of the hot bed plate connected to one side of the hot bed plate, and the key connected to the hot bed plate, the hot bed plate includes a first heating area in the middle area of the hot bed plate and a second heating area around the first heating area, the key is used to switch the first heating area or the first heating area and the second heating area to heat at the same time, and the display device is used to display the real-time temperature of the first heating area or the first heating area and the real-time temperature of the second heating area heated at the same time.

2. The heated bed of a printer according to claim 1, wherein, The display device includes a heat insulation plate and a display connected in the heat insulation plate.

3. The heated bed of a printer according to claim 2, wherein, The heat insulation plate is provided with a strip-shaped slot extending along the length direction of the heat insulation plate for placing the display.

4. The heated bed of a printer according to claim 2, wherein, One side of the heat insulation plate is also provided with a fixed plate with a thickness smaller than that of the heat insulation plate, and an L-shaped clamping groove for fitting the adjacent two sides of the hot bed plate is formed between the fixed plate and the heat insulation plate.

5. The heated bed of a printer according to claim 1, wherein, One side of the hot bed plate is also provided with a heat insulation seat, and the key is connected in the heat insulation seat.

6. The heated bed of a printer according to claim 1, wherein, The bottom of the hot bed plate is also provided with a thermistor.

7. The heated bed of a printer according to claim 1, wherein, A plurality of through slots are also provided between the first heating area and the second heating area.

8. The heated bed of a printer according to claim 1, wherein, The hot bed plate is made of metal material.

9. The heated bed of a printer according to claim 1, wherein, An input power circuit is provided on the hot bed plate, and the hot bed plate is connected to the power supply through the input power circuit.

10. The heated bed of a printer according to claim 9, wherein, The input power circuit includes an input interface J13, a fuse F1, a MOS tube Q9, and a diode D53, the input interface J13 is connected to the power supply, one end of the fuse F1 is connected to the input interface J13, the other end of the fuse F1 is connected to the source of the MOS tube Q9, the gate of the MOS tube Q9 is connected to the positive electrode of the diode D53, and the drain of the MOS tube Q9 is connected to the negative electrode of the diode D53.

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