Feeding device and printing equipment

Abstract

The utility model relates to a feeding device and printing equipment. The feeding device comprises a support, a limiting platform, a floating platform and a driving part. The limiting platform is installed on the support and arranged outside the printing space. The floating platform is provided with a first end and a second end opposite to the first end, and the first end is arranged outside the printing space and is opposite to the limiting platform; the second end of the floating platform is arranged in the printing space, and the second end of the floating platform is opposite to the nozzle. By means of the arrangement, the interval between the limiting platform and the floating platform in the first direction is matched with the thickness of the base material so as to be matched with the base materials of different thicknesses, and compatibility is improved. In addition, the distance between the upper surfaces of the base materials with different thicknesses and the spray head in the first direction is kept fixed, and therefore the stability of the printing quality can be guaranteed.

Description

Technical Field

[0001] The present application relates to the field of printing technology, and in particular to a feeding device and a printing equipment. Background Art

[0002] During printing, the substrate is placed on a supporting platform of the printing device, and the print head sprays the material onto the substrate to form text or graphics on the substrate.

[0003] In common printing equipment, in order to ensure the stability of printing quality, the height between the print head and the support platform is kept fixed. However, this printing equipment cannot be used for substrates of different thicknesses. Utility Model Content

[0004] Based on this, it is necessary to provide a feeding device and a printing device that are suitable for substrates of different thicknesses.

[0005] In a first aspect, the present application provides a feeding device for being installed on a frame of a printing device, wherein the frame has a printing space for printing a printing material on a substrate; the feeding device comprises:

[0006] Bracket;

[0007] A limiting platform, the limiting platform is installed on the bracket, and the limiting platform is used to be arranged outside the printing space;

[0008] a floating platform, the floating platform having a first end and a second end opposite to the first end, the first end being used to be arranged outside the printing space, the first end being arranged opposite to the limiting platform, and the second end being used to be arranged in the printing space; and

[0009] A driving member is installed on the bracket, the driving member is connected to the floating platform, and the floating platform moves along a first direction through the driving member so that the distance between the limiting platform and the floating platform along the first direction is adapted to the thickness of the substrate.

[0010] In one embodiment, the driving member includes a first elastic member, one end of the first elastic member is connected to the bracket, the other end of the first elastic member is connected to the floating platform, and the floating platform moves along the first direction through the first elastic member.

[0011] In one embodiment, the bracket is provided with a first guide member, which extends along the first direction; the floating platform is provided with a sliding member, which is movably provided on the first guide member, and the sliding member can move along the first direction on the first guide member, and the end of the first elastic member facing away from the bracket is connected to the sliding member.

[0012] In one embodiment, the feeding device also includes a supporting platform and a second elastic member, wherein the supporting platform is arranged on the side of the floating platform away from the limiting platform, the second elastic member is sleeved on the first elastic member, one end of the second elastic member is connected to the bracket, and the other end of the second elastic member is connected to the supporting platform, and the supporting platform moves along the first direction through the second elastic member.

[0013] In one embodiment, the bracket is provided with a first connecting shaft; the feeding device also includes a locking assembly, which is installed on the first connecting shaft, and the locking assembly can act on the floating platform and the supporting platform to make the feeding device have a first state; in the first state, the first elastic member is compressed, and there is a gap between the floating platform and the limiting platform for the substrate to enter, the floating platform is fixed relative to the limiting platform, the second elastic member is compressed, and the supporting platform is fixed relative to the limiting platform.

[0014] In one of the embodiments, the first connecting shaft can drive the lock assembly to rotate synchronously so that the feeding device is switched from the first state to the second state. In the second state, the first elastic member can be extended and retracted along the first direction so that the floating platform can move along the first direction, the second elastic member is compressed, and the support platform is fixed relative to the limit platform; the first connecting shaft can also drive the lock assembly to rotate synchronously in the opposite direction so that the feeding device is switched from the first state to the third state. In the third state, both the first elastic member and the second elastic member can be extended and retracted along the first direction so that both the floating platform and the support platform can move along the first direction.

[0015] In one embodiment, the floating platform is provided with a first matching portion, and the supporting platform is provided with a second matching portion; the locking assembly includes a first cam and a second cam, the first cam includes a first protruding portion, and the second cam includes a second protruding portion and a third protruding portion connected to the second protruding portion; in the first state, the first protruding portion presses the first matching portion in a direction away from the limiting platform so that the first elastic member is compressed, and the second protruding portion presses the second matching portion in a direction away from the limiting platform so that the second elastic member is compressed; in the second state, the first cam is separated from the first matching portion so that the first elastic member can be extended and retracted along the first direction, and the third protruding portion presses the second matching portion in a direction away from the limiting platform so that the second elastic member is compressed; in the third state, the first cam is separated from the first matching portion so that the first elastic member can be extended and retracted along the first direction, and the second cam is separated from the second matching portion so that the second elastic member can be extended and retracted along the first direction.

[0016] In one embodiment, the feeding device also includes a lifting platform. There are two lifting platforms, namely a first lifting platform and a second lifting platform. The first lifting platform is connected to the first end of the floating platform, and the second lifting platform is connected to the second end of the floating platform.

[0017] In one of the embodiments, the feeding device also includes a height sensor, which is used to be installed on the side of the limit platform away from the printing space; when the height sensor detects that the upper surface of the substrate is in contact with the side of the limit platform facing the floating platform, the first lifting platform stops height adjustment.

[0018] In a second aspect, the present application further provides a printing device, comprising:

[0019] A frame, wherein the frame is provided with a feed inlet and a printing space, and the feed inlet is connected to the printing space;

[0020] A nozzle, the nozzle is disposed in the printing space, and the nozzle is mounted on a frame; and

[0021] The above-mentioned feeding device, the bracket is installed on the frame, the limiting platform and the first end of the floating platform are arranged on the side of the feeding port away from the printing space, the second end of the floating platform is arranged in the printing space through the feeding port, and the second end of the floating platform is arranged opposite to the nozzle.

[0022] In the above-mentioned feeding device and printing equipment, when loading, an external force acts on the floating platform, causing the floating platform to move in a direction away from the limiting platform, so that the floating platform and the limiting platform have a gap in the first direction, which facilitates the substrate to enter between the limiting platform and the floating platform. In the process of the floating platform moving in a direction away from the limiting platform, the driving member also moves in a direction away from the limiting platform. After the loading is completed, the driving member pushes the floating platform to move in a direction close to the limiting platform until the upper surface of the substrate contacts the side of the limiting platform facing the floating platform. In this way, the gap between the limiting platform and the floating platform in the first direction is adapted to the thickness of the substrate, so as to adapt to substrates of different thicknesses and improve compatibility. In addition, the distance between the upper surface of substrates of different thicknesses and the nozzle in the first direction remains fixed, so that the stability of the printing quality can be ensured. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the structure of a printing device according to an embodiment of the present application.

[0024] Figure 2 It is a schematic structural diagram of a feeding device according to an embodiment of the present application.

[0025] Figure 3 for Figure 2 Rear view of the feeding device.

[0026] Figure 4 for Figure 2 A top view of the feeding device.

[0027] Figure 5 for Figure 4 Sectional view along AA.

[0028] Figure 6 for Figure 4 Cross-sectional view along BB.

[0029] Figure 7 for Figure 4 Cross-sectional view along CC.

[0030] Figure 8 for Figure 4 Cross-sectional view along DD.

[0031] Fig. 9 for Figure 8 A local enlarged schematic diagram of point A in the middle.

[0032] Fig.10 This is a schematic structural diagram of a lifting platform according to an embodiment of the present application.

[0033] Fig.11 It is a schematic structural diagram of a support assembly according to an embodiment of the present application.

[0034] Description of Figure Numbers:

[0035] 10. frame; 11. printing space; 12. feed port; 20. feed device; 21. bracket; 211. first mounting portion; 212. second mounting portion; 213. support portion; 214. mounting space; 215. first connecting shaft; 22. limit platform; 221. first rolling member; 222. third connecting shaft; 23. floating platform; 231. first end; 232. second end; 233. first matching portion; 234. connecting member; 2341. connecting groove; 235. mounting frame; 2351. first strip hole; 236. second rolling member; 237. second connecting shaft; 238. sliding member; 24. driving member; 241. first elastic member; 242. second elastic member; 243. first guide member; 244. second guide member; 25. supporting platform; 251. second matching portion; 2 52. second strip hole; 26. lock assembly; 261. first cam; 2611. first protrusion; 262. second cam; 2621. second protrusion; 2622. third protrusion; 27. drive mechanism; 271. motor; 2711. first driving wheel; 272. second driving wheel; 273. transmission belt; 28. lifting platform; 281. first lifting platform; 282. second lifting platform; 283. platform body; 284. support assembly; 2841. first supporting leg; 2842. second supporting leg; 2843. adjusting member; 2844. first mounting shaft; 2845. second mounting shaft; 2846. third mounting shaft; 2847. fourth mounting shaft; 2848. fifth mounting shaft; 29. ​​height sensor; 30. substrate; S. first direction; W. feeding direction. DETAILED DESCRIPTION

[0036] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0037] See also Figure 1 The printing device provided in one embodiment of the present application includes a frame 10, a nozzle, and a feeding device 20 installed on the frame 10. The frame 10 is provided with a feeding port 12 and a printing space 11, and the feeding port 12 is connected to the printing space 11. The nozzle is arranged in the printing space 11, and the nozzle is installed on the frame 10.

[0038] It should be noted that the printing space 11 refers to the space where the nozzle prints the printing material on the substrate 30 .

[0039] During printing, the substrate 30 is placed on the feeding device 20, and the substrate 30 enters the printing space 11 through the feeding port 12. In the printing space 11, the nozzle prints the printing material on the substrate 30.

[0040] In one embodiment, see Figure 1 and Figure 2 The feeding device 20 includes a bracket 21, a limiting platform 22 and a floating platform 23. The limiting platform 22 is installed on the bracket 21, and is arranged outside the printing space 11. Specifically, the limiting platform 22 is arranged on the side of the feeding port 12 away from the printing space 11. The floating platform 23 has a first end 231 and a second end 232 opposite to the first end 231. The first end 231 of the floating platform 23 is arranged outside the printing space 11. Specifically, the first end 231 of the floating platform 23 is arranged on the side of the feeding port 12 away from the printing space 11, and the first end 231 of the floating platform 23 is arranged opposite to the limiting platform 22. The second end 232 of the floating platform 23 is arranged in the printing space 11, and the second end 232 of the floating platform 23 is arranged opposite to the nozzle. During printing, the substrate 30 first enters between the limiting platform 22 and the floating platform 23 from the first end 231 of the floating platform 23 , and then the substrate 30 enters the printing space 11 , and the nozzle prints the printing material on the substrate 30 .

[0041] In one embodiment, see Figure 3 , Figure 4 and Figure 5 The feeding device 20 further includes a driving member 24. The driving member 24 is mounted on the bracket 21, and the driving member 24 is connected to the floating platform 23. The floating platform 23 moves along the first direction S through the driving member 24, so that the distance between the limiting platform 22 and the floating platform 23 along the first direction S is adapted to the thickness of the substrate 30. For ease of understanding, S is used to represent the first direction.

[0042] Optionally, see Figure 5 The driving member 24 includes a first elastic member 241, which is a spring. The first elastic member 241 is retracted along the first direction S. One end of the first elastic member 241 is connected to the bracket 21, and the other end of the first elastic member 241 is connected to the floating platform 23. The floating platform 23 moves along the first direction S through the first elastic member 241. Of course, in other embodiments, the driving member 24 may also be a lifting module, such as a cylinder, a linear module, etc., but is not limited thereto.

[0043] During the loading process, an external force acts on the floating platform 23, so that the floating platform 23 moves in a direction away from the limiting platform 22, so that the floating platform 23 and the limiting platform 22 have a gap in the first direction S. It can be understood that in the first direction S, the gap between the floating platform 23 and the limiting platform 22 is greater than the thickness of the substrate 30, so that it is convenient for the substrate 30 to enter between the limiting platform 22 and the floating platform 23. In the process of the floating platform 23 moving in a direction away from the limiting platform 22, the driving member 24 also moves in a direction away from the limiting platform 22. After the loading is completed, the driving member 24 pushes the floating platform 23 to move in a direction close to the limiting platform 22 until the upper surface of the substrate 30 contacts the side of the limiting platform 22 facing the floating platform 23. In this way, the gap between the limiting platform 22 and the floating platform 23 in the first direction S is adapted to the thickness of the substrate 30, so as to adapt to substrates 30 of different thicknesses and improve compatibility. In addition, the upper surface of the substrate 30 of different thicknesses and the nozzle in the first direction S are kept fixed, so that the stability of the printing quality can be ensured.

[0044] In one embodiment, see Figure 2 At least two brackets 21 are provided, and all brackets 21 are respectively provided on both sides of the limiting platform 22 and the floating platform 23 along the feeding direction W. Figure 1 and Figure 2 , W is used to represent the feeding direction. In this way, all the brackets 21 can support the limiting platform 22 and the floating platform 23 on both sides along the feeding direction W, which is beneficial to improve the stability of the limiting platform 22 and the floating platform 23.

[0045] Optionally, see Figure 2 There are two brackets 21, which are respectively arranged on both sides of the feeding direction W. The limiting platform 22 and the floating platform 23 are both arranged between the two brackets 21. The two sides of the limiting platform 22 are respectively connected to the upper parts of the two brackets 21, and the two sides of the floating platform 23 are respectively connected to the lower parts of the two brackets 21.

[0046] In one embodiment, see Figure 2 and Figure 3 , the bracket 21 is in an I-shape. Specifically, the bracket 21 includes a first mounting portion 211, a second mounting portion 212 and a support portion 213. The first mounting portion 211 and the second mounting portion 212 are extended along the feeding direction W, and the first mounting portion 211 and the second mounting portion 212 are spaced apart along the first direction S. The support portion 213 is arranged along the first direction S, and the two ends of the support portion 213 along the first direction S are respectively connected to the first mounting portion 211 and the second mounting portion 212.

[0047] Further, see Figure 2The limiting platform 22 is installed on the first installation portion 211 , and the first installation portion 211 provides an installation position for the limiting platform 22 , facilitating the installation of the limiting platform 22 .

[0048] Further, see Figure 3 The first mounting portion 211, the support portion 213 and the second mounting portion 212 are surrounded to form two mounting spaces 214, which are respectively located on both sides of the support portion 213 along the first direction S. In this way, other components can be installed in the mounting space 214, saving space and avoiding installation interference.

[0049] In one embodiment, see Figure 2 and Figure 3 The bracket 21 is provided with a first guide member 243, and the first guide member 243 extends along the first direction S. Optionally, the first guide member 243 is a guide column. The first guide member 243 is disposed in the installation space 214, one end of the first guide member 243 is connected to the first installation portion 211, and the other end of the first guide member 243 is connected to the second installation portion 212.

[0050] Optionally, see Figure 3 Each bracket 21 is provided with two first guide members 243, and the two first guide members 243 are respectively provided in the two installation spaces 214 in a one-to-one correspondence. In this way, the stability of the floating platform 23 moving along the first direction S is improved.

[0051] Further, see Figure 3 , a sliding member 238 is provided on the side of the floating platform 23 along the feeding direction W. Optionally, the sliding member 238 is a slider. The sliding member 238 is movably provided on the first guide member 243, and the sliding member 238 can move along the first direction S on the first guide member 243. One end of the first elastic member 241 is connected to the second mounting portion 212, and the other end of the first elastic member 241 is connected to the sliding member 238. During printing, the substrate 30 enters between the limiting platform 22 and the floating platform 23 from the first end 231 of the floating platform 23, and the first elastic member 241 gradually stretches, and the first elastic member 241 pushes the sliding member 238 to move upward on the first guide member 243 until the upper surface of the substrate 30 contacts the side of the limiting platform 22 facing the floating platform 23. In this way, the cooperation between the first guide member 243 and the sliding member 238 makes the movement of the floating platform 23 along the first direction S guided, thereby improving the stability of the movement of the floating platform 23 along the first direction S.

[0052] Further, see Figure 5The first elastic member 241 is sleeved on the first guide member 243. In this way, the first guide member 243 can guide the expansion and contraction direction of the first elastic member 241, ensure the expansion and contraction stability of the first elastic member 241, improve the stability of the movement of the floating platform 23, and ensure the printing quality.

[0053] In one embodiment, see Figure 2 and Figure 5 The feeding device 20 further includes a supporting platform 25 and a second elastic member 242. The supporting platform 25 is movably disposed on a side of the floating platform 23 away from the limiting platform 22. The second elastic member 242 is disposed along the first direction S, one end of the second elastic member 242 is connected to the supporting platform 25, and the other end of the second elastic member 242 is connected to the second mounting portion 212 of the bracket 21, and the second elastic member 242 can be extended and retracted along the first direction S. Under the action of the second elastic member 242, the supporting platform 25 can move along the first direction S. In this way, the supporting platform 25 and the second elastic member 242 can support the floating platform 23.

[0054] Further, see Figure 5 , the second elastic member 242 is sleeved on the first elastic member 241 to form a double-layer spring structure. Specifically, the support platform 25 is provided with a first through hole, and the first guide member 243 is provided in the first through hole. The first elastic member 241 is sleeved on the first guide member 243, one end of the first elastic member 241 is connected to the second mounting portion 212, and the other end of the first elastic member 241 is connected to the sliding member 238 after passing through the first through hole. The second elastic member 242 is sleeved on the first elastic member 241, one end of the second elastic member 242 is connected to the second mounting portion 212, and the other end of the second elastic member 242 is provided in the first through hole and connected to the hole wall of the first through hole.

[0055] In one embodiment, see Figure 3 The bracket 21 is provided with a second guide member 244, and the second guide member 244 extends along the first direction S. Optionally, the second guide member 244 is a guide column. The second guide member 244 is disposed in the installation space 214, one end of the second guide member 244 is connected to the first installation portion 211, and the other end of the second guide member 244 is connected to the second installation portion 212.

[0056] Furthermore, the support platform 25 is provided with a second through hole, and the second guide member 244 is provided in the second through hole. Thus, under the action of the second guide member 244, the movement of the support platform 25 along the first direction S is guided, thereby improving the stability of the movement of the support platform 25.

[0057] In one embodiment, see Figure 7 , Figure 8 and Fig. 9, the bracket 21 is provided with a first connecting shaft 215. The feeding device 20 further includes a locking assembly 26, which is mounted on the first connecting shaft 215. The locking assembly 26 can act on the floating platform 23 and the supporting platform 25, so that the feeding device 20 has a first state. In the first state, the first elastic member 241 is compressed, and the floating platform 23 and the limiting platform 22 have a gap in the first direction S for the substrate 30 to enter, and the height of the gap in the first direction S is greater than the thickness of the substrate 30, and the floating platform 23 is fixed relative to the limiting platform 22, while the second elastic member 242 is compressed, and the supporting platform 25 is fixed relative to the limiting platform 22. It can be understood that in the first state, the floating platform 23 and the supporting platform 25 are in a pull-down locking state, which facilitates the substrate 30 to enter between the limiting platform 22 and the floating platform 23, and ensures that the substrate 30 can be fed smoothly.

[0058] Specifically, see Figure 7 , Figure 8 and Fig. 9 The floating platform 23 is provided with a first matching portion 233, and the supporting platform 25 is provided with a second matching portion 251. Optionally, the first matching portion 233 is provided with a first roller, and the second matching portion 251 is provided with a second roller. Further, the lock assembly 26 includes a first cam 261 and a second cam 262, the first cam 261 includes a first protrusion 2611, and the second cam 262 includes a second protrusion 2621.

[0059] See also Figure 7 In the first state, the first protrusion 2611 presses the first matching portion 233 in a direction away from the limiting platform 22 to compress the first elastic member 241, and at the same time, the second protrusion 2621 presses the second matching portion 251 in a direction away from the limiting platform 22 to compress the second elastic member 242. At this time, the floating platform 23 and the supporting platform 25 are both in a pull-down locking state, which facilitates the substrate 30 to enter between the limiting platform 22 and the floating platform 23, ensuring that the substrate 30 can be fed smoothly.

[0060] In one embodiment, the floating platform 23 has a first pressure adjustment gear and a second pressure adjustment gear. When the feeding device 20 is in the first pressure adjustment gear, the substrate 30 that is not pressure-resistant can be prevented from being over-pressed. When the feeding device 20 is in the second pressure adjustment gear, sufficient support can be provided for the substrate 30 that is pressure-resistant and has a high density.

[0061] Further, see Figure 7 , Figure 8 and Fig. 9, the first connecting shaft 215 can drive the lock assembly 26 to rotate synchronously, so that the feeding device 20 switches from the first state to the second state. In the second state, i.e., the first pressure adjustment gear, the first elastic member 241 can be extended and retracted along the first direction S so that the floating platform 23 can move along the first direction S, while the second elastic member 242 is compressed, and the support platform 25 is fixed relative to the limit platform 22. It can be understood that in the first pressure adjustment gear, the support platform 25 is in a pull-down locking state, and the floating platform 23 can move along the first direction S. At this time, only the first elastic member 241 acts on the floating platform 23, which can prevent the substrate 30 from being excessively squeezed by the floating platform 23, thereby ensuring the integrity of the pressure-intolerant substrate 30.

[0062] Specifically, see Figure 7 , Figure 8 and Fig. 9 , the second cam 262 also includes a third protrusion 2622 connected to the second protrusion 2621. In the second state, the first cam 261 is separated from the first matching portion 233, so that the first elastic member 241 can be extended and retracted along the first direction S, and the floating platform 23 can move along the first direction S; at the same time, the third protrusion 2622 presses the second matching portion 251 in a direction away from the limiting platform 22, so that the second elastic member 242 is compressed, and the supporting platform 25 is still in the pull-down locking state.

[0063] In one embodiment, see Figure 7 , Figure 8 and Fig. 9 , the first connecting shaft 215 can drive the lock assembly 26 to rotate in the opposite direction, so that the feeding device 20 switches from the first state to the third state. In the third state, i.e., the second pressure adjustment gear, the first elastic member 241 and the second elastic member 242 can both be extended and retracted along the first direction S. It can be understood that in the second pressure adjustment gear, the support platform 25 contacts the floating platform 23, and the first elastic member 241 and the second elastic member 242 both act on the floating platform 23, so that the floating platform 23 can provide sufficient support for the substrate 30 with good pressure resistance and high density.

[0064] Specifically, see Figure 7 , Figure 8 and Fig. 9 In the third state, the first cam 261 is separated from the first matching portion 233, and the first elastic member 241 can freely expand and contract along the first direction S. Meanwhile, the second cam 262 is separated from the second matching portion 251, and the second elastic member 242 can freely expand and contract along the first direction S. It can be understood that in the third state, both the floating platform 23 and the supporting platform 25 can move along the first direction S. In this way, both the first elastic member 241 and the second elastic member 242 can act on the floating platform 23, and the floating platform 23 can provide sufficient support for the substrate 30 with good pressure resistance and high density.

[0065] In one embodiment, see Figure 8 and Fig. 9 A mounting frame 235 is provided on one side of the floating platform 23 away from the limiting platform 22, and the first matching portion 233 is provided on the mounting frame 235. By providing the mounting frame 235, the mounting frame 235 provides a setting position for the first matching portion 233.

[0066] Further, see Figure 8 and Fig. 9 The mounting frame 235 is provided with a first strip hole 2351, and the first strip hole 2351 is extended along the first direction S. The supporting platform 25 is provided with a second strip hole 252 connected with the first strip hole 2351, and the second strip hole 252 is extended along the first direction S. The first connecting shaft 215 is movably provided in the first strip hole 2351 and the second strip hole 252. By providing the first strip hole 2351 on the mounting frame 235, even if the height of the first connecting shaft 215 along the first direction S remains fixed, the floating platform 23 and the supporting platform 25 can move along the first direction S relative to the first connecting shaft 215.

[0067] In one embodiment, see Figure 2 and Figure 6 The limiting platform 22 is provided with a first rolling member 221, and the floating platform 23 is provided with a second rolling member 236. Optionally, the first rolling member 221 and the second rolling member 236 are arranged opposite to each other. During the feeding process, the upper surface of the substrate 30 rolls with the first rolling member 221, and the lower surface of the substrate 30 rolls with the second rolling member 236, so as to reduce the friction between the substrate 30 and the limiting platform 22 and the bracket 21 of the floating platform 23, which is beneficial to reduce the wear of the substrate 30 and also beneficial to increase the feeding speed of the substrate 30.

[0068] Further, see Figure 2 and Figure 6 The floating platform 23 is provided with a second connecting shaft 237 , the second connecting shaft 237 extends along a direction intersecting with the feeding direction W, and the second rolling member 236 is installed on the second connecting shaft 237 .

[0069] Further, see Figure 2 and Figure 6 The limiting platform 22 is provided with a third connecting shaft 222. The third connecting shaft 222 extends along a direction intersecting with the feeding direction W, and the first rolling element 221 is mounted on the third connecting shaft 222.

[0070] In one embodiment, see Figure 3 and Figure 6The feeding device 20 further includes a driving mechanism 27, which is drivingly connected to the second rolling member 236, and is used to drive the second rolling member 236 to rotate. Specifically, the driving mechanism 27 is drivingly connected to the second connecting shaft 237. During feeding, the driving mechanism 27 drives the second connecting shaft 237 to rotate, and the second connecting shaft 237 drives the second rolling member 236 to rotate, so that the substrate 30 moves along the feeding direction W. In this way, automatic feeding of the substrate 30 is achieved.

[0071] Optionally, see Figure 3 The driving mechanism 27 includes a motor 271 and a transmission belt 273. The motor 271 is installed on the floating platform 23, and the power shaft of the motor 271 is installed with a first driving wheel 2711, and the second connecting shaft 237 is installed with a second driving wheel 272. The transmission belt 273 passes around the first driving wheel 2711 and the second driving wheel 272. When feeding, the motor 271 drives the first driving wheel 2711 to rotate, and then drives the second driving wheel 272 to rotate through the transmission belt 273, thereby driving the second connecting shaft 237 and the second rolling element 236 thereon to rotate.

[0072] In one embodiment, see Figure 1 and Figure 2 The feeding device 20 also includes a lifting platform 28. There are two lifting platforms 28, namely a first lifting platform 281 and a second lifting platform 282. The first lifting platform 281 is connected to the first end 231 of the floating platform 23, and the second lifting platform 282 is connected to the second end 232 of the floating platform 23. During printing, the first lifting platform 281 and the second lifting platform 282 support the substrate 30 to prevent the substrate 30 from being suspended and damaged, and at the same time, it can also prevent the substrate 30 from shaking, etc., to ensure the printing quality. In addition, the first lifting platform 281 and the second lifting platform 282 can also be lifted and lowered according to the thickness of the substrate 30 to adjust the height of the first lifting platform 281 and the second lifting platform 282, so that the height of the first lifting platform 281 and the second lifting platform 282 meets the printing requirements.

[0073] In one embodiment, see Fig.10 and Fig.11 The first lifting platform 281 and the second lifting platform 282 are both scissor-type lifting platforms. The scissor-type lifting platform has high stability during lifting and has high carrying capacity.

[0074] Further, see Fig.10 and Fig.11, the first lifting platform 281 and the second lifting platform 282 both include a platform body 283 and a support assembly 284. The support assembly 284 includes a first support leg 2841 and a second support leg 2842, the first support leg 2841 and the second support leg 2842 are rotatably connected to the platform body 283, and the first support leg 2841 and / or the second support leg 2842 are movably connected to the platform body 283. The first support leg 2841 and the second support leg 2842 are arranged crosswise, and at the cross position, the first support leg 2841 and the second support leg 2842 are rotatably connected. Optionally, the first support leg 2841 is rotatably connected to the second support leg 2842 along the middle of its length direction.

[0075] Further, see Fig.10 and Fig.11 , the support assembly 284 also includes an adjusting member 2843. The adjusting member 2843 connects the first supporting leg 2841 and the second supporting leg 2842. Optionally, the adjusting member 2843 is a screw, which is threadedly connected to the first supporting leg 2841 and the second supporting leg 2842. Before printing, the adjusting member 2843 is rotated, and the end of the first supporting leg 2841 and the end of the second supporting leg 2842 are moved closer to or away from each other to adjust the angle between the first supporting leg 2841 and the second supporting leg 2842, thereby adjusting the height of the first lifting platform 281 and the second lifting platform 282, so that the height of the first lifting platform 281 and the second lifting platform 282 meet the printing requirements.

[0076] In one embodiment, the platform body 283 is provided with a third strip hole, and the third strip hole is extended along the feeding direction W. Of course, in other embodiments, the third strip hole can also be extended along a direction intersecting with the feeding direction W.

[0077] Optionally, see Fig.10 and Fig.11 The lifting platform 28 further includes a first mounting shaft 2844 and a second mounting shaft 2845. The first mounting shaft 2844 is mounted on the platform body 283, and one end of the first supporting leg 2841 is connected to the first mounting shaft 2844. The second mounting shaft 2845 is movably disposed in the third strip hole, and one end of the second supporting leg 2842 is connected to the second mounting shaft 2845. Before printing, the adjusting member 2843 is rotated, the first mounting shaft 2844 is rotated, and the second mounting shaft 2845 moves in the third strip hole toward or away from the first mounting shaft 2844 to adjust the angle between the first supporting leg 2841 and the second supporting leg 2842, thereby adjusting the height of the lifting platform 28.

[0078] Of course, in other embodiments, two third strip holes may be provided, and the two third strip holes are spaced apart along the feed direction W, the first mounting shaft 2844 is movably provided in one of the third strip holes, and the second mounting shaft 2845 is movably provided in the other third strip hole.

[0079] In one embodiment, see Fig.10 and Fig.11 Each lifting platform 28 is provided with two support assemblies 284, and the two support assemblies 284 are respectively installed on both sides of the lifting platform 28 along the feeding direction W. In this way, the two support assemblies 284 can respectively support both sides of the lifting platform 28 along the feeding direction W, so that the lifting platform 28 along both sides of the feeding direction W maintains balance.

[0080] Specifically, see Fig.11 In one of the support assemblies 284, the first support leg 2841 is connected to one end of the first mounting shaft 2844, and the second support leg 2842 is connected to one end of the second mounting shaft 2845. In the other support assembly 284, the first support leg 2841 is connected to the other end of the first mounting shaft 2844, and the second support leg 2842 is connected to the other end of the second mounting shaft 2845.

[0081] In one embodiment, see Fig.11 , the support assembly 284 also includes a third mounting shaft 2846 and a fourth mounting shaft 2847. The two ends of the third mounting shaft 2846 are respectively connected to the first supporting legs 2841 of the two support assemblies 284, and the two ends of the fourth mounting shaft 2847 are respectively connected to the second supporting legs 2842 of the two support assemblies 284. The third mounting shaft 2846 is provided with a first threaded hole, and the fourth mounting shaft 2847 is provided with a second threaded hole. The screw rod is arranged in the first threaded hole and the second threaded hole. By rotating the screw rod, the third mounting shaft 2846 and the fourth mounting shaft 2847 move along the axial direction of the screw rod to synchronously adjust the angle between the first supporting leg 2841 and the second supporting leg 2842 of the two support assemblies 284, thereby synchronously adjusting the height of the lifting platform 28 on both sides along the feeding direction W.

[0082] In one embodiment, see Fig.11 The support assembly 284 further includes a fifth mounting shaft 2848. One end of the fifth mounting shaft 2848 is connected to the middle of the first supporting leg 2841 and the middle of the second supporting leg 2842 of one of the support assemblies 284, and the other end of the fifth mounting shaft 2848 is connected to the middle of the first supporting leg 2841 and the middle of the second supporting leg 2842 of another support assembly 284.

[0083] In one embodiment, see Figure 1 and Figure 2The feeding device 20 further includes a height sensor 29. The height sensor 29 is used to be installed on the side of the limiting platform 22 away from the printing space 11. When the height sensor 29 detects that the upper surface of the substrate 30 contacts the side of the limiting platform 22 facing the floating platform 23, the first lifting platform 281 stops height adjustment, so that the upper surface of the substrate 30 and the driven wheel are at the same printing reference plane, thereby ensuring the printing quality.

[0084] In one embodiment, see Figure 1 , Figure 2 and Figure 3 , a connecting piece 234 is provided at the first end 231 of the floating platform 23, and the connecting piece 234 is provided with a connecting groove 2341. The side of the first lifting platform 281 is arranged in the connecting groove 2341. By providing the connecting groove 2341, the groove wall of the connecting groove 2341 plays a role of limiting the first lifting platform 281, preventing the first lifting platform 281 from being separated from the floating platform 23. In this way, the connection between the floating platform 23 and the first lifting platform 281 is achieved. During printing, the height of the first lifting platform 281 is fixed, and after the side of the first lifting platform 281 is arranged in the connecting groove 2341, the floating platform 23 can move along the first direction S according to the thickness of the substrate 30.

[0085] In the description of the present application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0086] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, if the term "plurality" appears, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0087] In this application, unless otherwise clearly specified and limited, if the terms "installed", "connected", "connected", "fixed" and the like appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0088] In the present application, unless otherwise clearly specified and limited, if there is a description that a first feature is "above" or "below" a second feature, etc., or similar descriptions appear, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0089] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only implementation method.

[0090] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0091] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. A feeding device, characterized in that: A frame for mounting on a printing device, the frame having a printing space for printing printing materials on a substrate; The feeding device comprises: Bracket; A limiting platform, the limiting platform is installed on the bracket, and the limiting platform is used to be arranged outside the printing space; a floating platform, the floating platform having a first end and a second end opposite to the first end, the first end being used to be arranged outside the printing space, the first end being arranged opposite to the limiting platform, and the second end being used to be arranged in the printing space; and A driving member is installed on the bracket, the driving member is connected to the floating platform, and the floating platform moves along a first direction through the driving member so that the distance between the limiting platform and the floating platform along the first direction is adapted to the thickness of the substrate.

2. The feeding device according to claim 1, characterized in that: The driving member includes a first elastic member, one end of the first elastic member is connected to the bracket, the other end of the first elastic member is connected to the floating platform, and the floating platform moves along the first direction through the first elastic member.

3. The feeding device according to claim 2, characterized in that: The bracket is provided with a first guide member, and the first guide member extends along the first direction; The floating platform is provided with a sliding member, which is movably arranged on the first guide member. The sliding member can move along the first direction on the first guide member, and one end of the first elastic member away from the bracket is connected to the sliding member.

4. The feeding device according to claim 2, characterized in that: The feeding device also includes a supporting platform and a second elastic member. The supporting platform is arranged on the side of the floating platform away from the limiting platform. The second elastic member is sleeved on the first elastic member. One end of the second elastic member is connected to the bracket, and the other end of the second elastic member is connected to the supporting platform. The supporting platform moves along the first direction through the second elastic member.

5. The feeding device according to claim 4, characterized in that: The bracket is provided with a first connecting shaft; the feeding device further comprises a locking assembly, the locking assembly is mounted on the first connecting shaft, the locking assembly can act on the floating platform and the supporting platform to enable the feeding device to have a first state; In the first state, the first elastic member is compressed, a gap is provided between the floating platform and the limiting platform for the substrate to enter, the floating platform is fixed relative to the limiting platform, the second elastic member is compressed, and the supporting platform is fixed relative to the limiting platform.

6. The feeding device according to claim 5, characterized in that The first connecting shaft can drive the lock assembly to rotate synchronously, so that the feeding device switches from the first state to the second state. In the second state, the first elastic member can be extended and retracted along the first direction so that the floating platform can move along the first direction, the second elastic member is compressed, and the supporting platform is fixed relative to the limiting platform; The first connecting shaft can also drive the lock assembly to rotate synchronously in the opposite direction so that the feeding device can switch from the first state to the third state. In the third state, the first elastic member and the second elastic member can both be extended and retracted along the first direction so that the floating platform and the supporting platform can both move along the first direction.

7. The feeding device according to claim 6, characterized in that: The floating platform is provided with a first matching portion, and the supporting platform is provided with a second matching portion; the lock assembly comprises a first cam and a second cam, the first cam comprises a first protruding portion, and the second cam comprises a second protruding portion and a third protruding portion connected to the second protruding portion; In the first state, the first protrusion presses the first matching portion in a direction away from the limiting platform so that the first elastic member is compressed, and the second protrusion presses the second matching portion in a direction away from the limiting platform so that the second elastic member is compressed; In the second state, the first cam is separated from the first matching portion so that the first elastic member can be extended and retracted along the first direction, and the third protrusion presses the second matching portion in a direction away from the limiting platform so that the second elastic member is compressed; In the third state, the first cam is separated from the first matching portion so that the first elastic member can be extended and retracted along the first direction, and the second cam is separated from the second matching portion so that the second elastic member can be extended and retracted along the first direction.

8. The feeding device according to any one of claims 1 to 7, characterized in that: The feeding device also includes a lifting platform. There are two lifting platforms, namely a first lifting platform and a second lifting platform. The first lifting platform is connected to the first end of the floating platform, and the second lifting platform is connected to the second end of the floating platform.

9. The feeding device according to claim 8, characterized in that: The feeding device further comprises a height sensor, and the height sensor is used to be installed on a side of the limiting platform away from the printing space; When the height sensor detects that the upper surface of the substrate is in contact with the side of the limiting platform facing the floating platform, the first lifting platform stops height adjustment.

10. A printing device, characterized in that: include: A frame, wherein the frame is provided with a feed inlet and a printing space, and the feed inlet is connected to the printing space; A nozzle, the nozzle is arranged in the printing space, and the nozzle is installed on a frame; as well as, According to the feeding device as described in any one of claims 1 to 9, the bracket is installed on the frame, the limiting platform and the first end of the floating platform are arranged on the side of the feed port away from the printing space, the second end of the floating platform is arranged in the printing space through the feed port, and the second end of the floating platform is arranged opposite to the nozzle.

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