An adsorption platform and printing equipment

Abstract

This invention relates to the field of printing equipment technology, and particularly to an adsorption platform and printing equipment. The platform includes a platform body and an adjustment component. The platform body has a bearing surface with an adsorption port. The adjustment component is fixed to the platform body and includes a tubular body and an elastic component. The tubular body has a first suction chamber, a first air hole, and a second air hole. The adsorption port, the first air hole, and the second air hole are all connected to the first suction chamber. Both the first and second air holes are used to communicate with an external negative pressure component. The area of ​​the first air hole is larger than the area of ​​the second air hole. One end of the elastic component is fixed to the tubular body, and the other end of the elastic component is located in the first suction chamber and is suspended. The other end of the elastic component corresponds to the first air hole. Through this method, this invention can reduce air leakage at the adsorption port not covered by printing material while ensuring sufficient adsorption material.

Description

TECHNICAL FIELD

[0001] The embodiment of the present application relates to the technical field of printing equipment, in particular to an adsorption platform and printing equipment. BACKGROUND

[0002] With the development of science and technology, the technology of digital printer is gradually mature, when printing, the printer generally adopts the adsorption platform to bear the printing material, the adsorption platform is provided with an adsorption port, a gas pump is connected with the adsorption port, the adsorption port forms a negative pressure when the gas pump works, the printing material is adsorbed by the negative pressure, and the printing material is tightly attached to the adsorption platform, so that the smooth progress of the printing process is ensured.

[0003] However, in the process of implementing the present application, the inventor finds that: in order to better adsorb the printing material, the number of the adsorption ports of the adsorption platform of the printer is usually multiple, the multiple adsorption ports are all communicated with the gas pump, but the specifications of the printing material are inconsistent, sometimes large and sometimes small, when printing the small printing material, the printing material does not completely cover all the adsorption ports, and the adsorption ports in the area not covered by the printing material will have the problem of air leakage, which reduces the suction force of the adsorption port on the printing material, causes the material adsorption to be unstable, and affects the printing precision. SUMMARY

[0004] In view of the above problems, the embodiment of the present application provides an adsorption platform and printing equipment, which overcomes the above problems or at least partially solves the above problems.

[0005] According to one aspect of the embodiment of the present application, an adsorption platform is provided, which comprises a platform body and an adjusting assembly, the platform body is provided with a bearing surface, the bearing surface is used for bearing the printing material, the platform body is also provided with an adsorption port, and the adsorption port is located on the bearing surface. The adjusting assembly is fixed to the platform body, the adjusting assembly comprises a tubular body and an elastic assembly, the tubular body is provided with a first suction cavity, a first air hole and a second air hole, the adsorption port, the first air hole and the second air hole are all communicated with the first suction cavity, the first air hole and the second air hole are all used for being communicated with a negative pressure assembly outside, the area of the first air hole is greater than that of the second air hole, one end of the elastic assembly is fixed to the tubular body, the other end of the elastic assembly is located in the first suction cavity, and the other end of the elastic assembly is in a suspended state, and the other end of the elastic assembly corresponds to the first air hole. When the adsorption port is not covered by the printing material and the negative pressure assembly outside works, the elastic assembly deforms, the other end of the elastic assembly blocks the first air hole, when the adsorption port is covered by the printing material and the negative pressure assembly outside works, under the action of the second air hole, the other end of the elastic assembly returns to the suspended state.

[0006] In some embodiments, the elastic assembly comprises an elastic member and a blocking member, the blocking member is located in the first air suction cavity, one end of the elastic member is fixed to the tubular body, the other end of the elastic member is fixed to the blocking member, the blocking member is suspended, and the blocking member corresponds to the first air hole. When the adsorption port is not covered by the printing material and the external negative pressure assembly works, the elastic member deforms, the blocking member blocks the first air hole, when the adsorption port is covered by the printing material and the external negative pressure assembly works, the elastic member restores deformation under the action of the second air hole, and the blocking member restores the suspended state.

[0007] In some embodiments, one end of the elastic member is fixed to the inner side wall of the first air suction cavity, so that the blocking member can better block and unblock the first air hole.

[0008] In some embodiments, the blocking member is spherical, so that the blocking member can better block the first air hole.

[0009] In some embodiments, the elastic member is a spring, so that the elastic member has better elastic deformation.

[0010] In some embodiments, the tubular body is further provided with a second air suction cavity and a third air hole, the first air hole communicates the second air suction cavity and the first air suction cavity, the third air hole communicates the second air suction cavity, the third air hole is used for communicating with the external negative pressure assembly, and the area of the third air hole is greater than that of the second air hole. One end of the elastic member is fixed to the inner surface of the second air suction cavity, and the other end of the elastic member is fixed to the blocking member after penetrating through the first air hole. In this way, the elastic assembly can better block and unblock the first air hole.

[0011] In some embodiments, the platform body is provided with an air cavity and a connecting port, the second air hole, the third air hole and the connecting port all communicate with the air cavity, and the connecting port is used for communicating with the external negative pressure assembly.

[0012] In some embodiments, the first air hole is funnel-shaped, and the cross-sectional area of the first air hole gradually decreases in the direction from the first air suction cavity to the second air suction cavity, so that the blocking member can better block and unblock the first air hole.

[0013] In some embodiments, the number of the adsorption ports and the number of the adjusting assemblies are both plural, the adsorption ports are arranged in an array on the bearing surface, and one adsorption port communicates with the first air suction cavity of one adjusting assembly. In this way, the adsorption force of the adsorption ports is uniform.

[0014] According to an aspect of an embodiment of the present application, a printing device is provided, comprising the above-mentioned adsorption platform.

[0015] The beneficial effects of the embodiment of the present application are: different from the prior art, the adsorption platform provided by the embodiment of the present application comprises a platform body and an adjusting assembly, the platform body is provided with a bearing surface, the bearing surface is provided with an adsorption port, the adjusting assembly is fixed to the platform body, the adjusting assembly comprises a tubular body and an elastic assembly, the tubular body is provided with a first air suction cavity, a first air hole and a second air hole, the adsorption port, the first air hole and the second air hole are all in communication with the first air suction cavity, the first air suction cavity and the external negative pressure assembly are connected through the first air hole, so as to realize that when the adsorption port is not covered by the printing material and the external negative pressure assembly works, the gas is sucked into the adsorption port, the end of the first air suction cavity away from the adsorption port is high negative pressure, the end of the first air suction cavity close to the adsorption port is low negative pressure, the elastic assembly deforms, the other end of the elastic assembly blocks the first air hole, which is beneficial to reduce the air leakage of the adsorption port, the first air suction cavity and the external negative pressure assembly are connected through the second air hole, at this time, only a small part of the gas is sucked into the platform body through the second air hole with a small area, when the adsorption port is covered by the printing material and the external negative pressure assembly works, the gas at the end of the first air suction cavity close to the adsorption port is gradually sucked into the platform body through the second air hole, so that the negative pressure at the end of the first air suction cavity close to the adsorption port is quickly restored to a higher negative pressure, the deformation force of the elastic assembly makes the other end of the elastic assembly return to a suspended state, and the adsorption port adsorbs the printing material under the suction force of the first air hole. In summary, the adsorption platform can reduce the air leakage degree of the adsorption port not covered by the printing material under the premise of meeting the adsorption material. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiments of the present application will be briefly introduced as follows. Obviously, the drawings described below are only some embodiments of the present application, and other drawings can be obtained by the drawings without creative labor for those skilled in the art.

[0017] Fig. 1 is a perspective view of the adsorption platform provided by the embodiment of the present application;

[0018] Fig. 2 is a sectional view of the adsorption platform provided by the embodiment of the present application along the A direction;

[0019] Fig. 3 is an enlarged view of B part of the adsorption platform provided by the embodiment of the present application;

[0020] Fig. 4 is an enlarged view of B part of the adsorption platform provided by the embodiment of the present application without the adjusting assembly;

[0021] Fig. 5 is a perspective view of an adjusting assembly provided by an embodiment of the present application;

[0022] Fig. 6 is a sectional view of the adjusting assembly provided by an embodiment of the present application along the direction of C.

[0023] The reference signs in the detailed description are as follows:

[0024] 1000, an adsorption platform;

[0025] 100, a platform body; 200, an adjusting assembly;

[0026] 10, a bearing surface; 10a, an adsorption port; 11, an air cavity; 12, a connecting port;

[0027] 20, a tubular body; 201, a first air suction cavity; 202, a first air hole; 203, a second air hole; 204, a second air suction cavity; 205, a third air hole; 206, a protruding portion; 207, an opening;

[0028] 21, an elastic assembly; 211, an elastic member; 212, a blocking member. DETAILED DESCRIPTION

[0029] In order to facilitate the understanding of the present application, the present application will be described in more detail below in conjunction with the drawings and specific embodiments. It should be noted that when an element is described as "fixed to" another element, it can be directly on the other element or one or more intervening elements can be present therebetween. When an element is described as "connected to" another element, it can be directly connected to the other element or one or more intervening elements can be present therebetween. The terms "vertical", "horizontal", "left", "right", and similar expressions used in the present specification are for illustrative purposes only.

[0030] Unless otherwise defined, all technical and scientific terms used in the present specification are the same as those commonly understood by a person skilled in the art to which the present application belongs. The terms used in the present specification are only for the purpose of describing specific embodiments and are not intended to limit the present application. The term "and / or" used in the present specification includes any and all combinations of one or more related listed items.

[0031] Please refer to Figs. 1-3, the adsorption platform 1000 comprises a platform body 100 and an adjusting assembly 200, the platform body 100 is used for carrying a printing material (not shown in the figure) and communicating with an external negative pressure assembly (not shown in the figure), when the external negative pressure assembly works, the platform body 100 can adsorb the printing material, the adjusting assembly 200 is fixed to the platform body 100, and the adjusting assembly 200 is used for controlling the communication state of the platform body 100 and the negative pressure assembly.

[0032] For the above-mentioned platform body 100, please refer to Fig. 4 , the platform body 100 is provided with a carrying surface 10, an adsorption port 10a, a gas cavity 11 and a connecting port 12, the carrying surface 10 is used for carrying a printing material, the adsorption port 10a is located on the carrying surface 10, the adsorption port 10a is used for adsorbing a printing material, the adsorption port 10a and the connecting port 12 are both in communication with the gas cavity 11, and the connecting port 12 is used for communicating with an external negative pressure assembly, so that when the negative pressure assembly works, the adsorption port 10a can adsorb the printing material.

[0033] For the above-mentioned adjusting assembly 200, please refer to Figs. 5-6 , the adjusting assembly 200 comprises a tubular body 20 and an elastic assembly 21, the tubular body 20 is arranged on the platform body 100, and the tubular body 20 is used for communicating the adsorption port 10a and the gas cavity 11, in a preferred embodiment, the tubular body 20 is fixed to the adsorption port 10a. One end of the elastic assembly 21 is fixed to the tubular body 20, and the elastic assembly 21 is used for controlling the communication state of the adsorption port 10a and the gas cavity 11. In some embodiments, the number of the adsorption port 10a and the adjusting assembly 200 is multiple, a plurality of the adsorption port 10a is arranged in an array on the carrying surface 10, one adsorption port 10a is communicated with one tubular body 20, and the uniformity of the adsorption force of each adsorption port 10a is facilitated.

[0034] For the above tubular body 20, the tubular body 20 is provided with an opening 207, a first air suction cavity 201, a first air hole 202 and a second air hole 203, the opening 207 communicates with the adsorption port 10a, the opening 207, the first air hole 202 and the second air hole 203 all communicate with the first air suction cavity 201, the first air hole 202 and the second air hole 203 both communicate with the air cavity 11, and further communicate with the external negative pressure assembly, the area of the first air hole 202 is larger than that of the second air hole 203, so as to realize that when the external negative pressure device works, the negative pressure value near the first air hole 202 is higher than that near the second air hole 203, one end of the elastic assembly 21 is fixed to the tubular body 20, the other end of the elastic assembly 21 is located in the first air suction cavity 201, and the other end of the elastic assembly 21 is arranged in a suspended manner, and the other end of the elastic assembly 21 corresponds to the first air hole 202. In this way, when the adsorption port 10a is not covered by the printing material and the external negative pressure assembly works, the external gas is sucked into the first air suction cavity 201 through the adsorption port 10a, so that the negative pressure at the adsorption port 10a is lower than that of the first air hole 202, under the influence of the negative pressure difference, the suspended end of the elastic assembly 21 is adsorbed and moves towards the first air hole 202, the elastic assembly 21 deforms, and the suspended end of the elastic assembly 21 blocks the first air hole 202, at this time, only a small part of the external gas can be sucked into the air cavity 11 through the second air hole 203 with a smaller area, which is beneficial to reduce the air leakage of the adsorption port 10a; when the adsorption port 10a is covered by the printing material and the external negative pressure assembly works, the gas in the first air suction cavity 201 is sucked into the air cavity 11 through the second air hole 203, so that the negative pressure of the first air suction cavity 201 gradually approaches that of the air cavity 11, under the action of the elastic force of the elastic assembly 21, the suspended end of the elastic assembly 21 gradually returns to the original position, the first air hole 202 resumes conduction, and the adsorption port 10a restores high negative pressure, so that the adsorption port 10a adsorbs the printing material. In some embodiments, the tubular body 20 is provided with a protruding portion 206 at one end close to the opening 207, the adsorption port 10a is arranged in a stepped manner along the direction of the first air hole 202 on the bearing surface 10, so that the protruding portion 206 is fastened to the stepped adsorption port 10a. It can be understood that the adsorption port 10a can have other shapes or structures, the structure of the protruding portion 206 corresponds to that of the adsorption port 10a, and the fixing mode of the tubular body 20 and the adsorption port 10a is not limited to the above mode, for example, the adsorption port 10a is provided with a snap spring, the protruding portion 206 is clamped with the adsorption port 10a, or the tubular body 20 is adhered to the inner wall of the adsorption port 10a by an adhesive.

[0035] For the above elastic assembly 21, the elastic assembly 21 comprises an elastic piece 211 and a blocking piece 212, the blocking piece 212 is located in the first air suction cavity 201, one end of the elastic piece 211 is fixed to the inner side wall of the first air suction cavity 201, the other end of the elastic piece 211 is fixed with the blocking piece 212, the blocking piece 212 is suspended, the blocking piece 212 corresponds to the first air hole 202, so as to achieve that when the suction port 10a is not covered by the printing material and the external negative pressure assembly works, the external gas is sucked into the first air suction cavity 201 through the suction port 10a, so that the negative pressure at the suction port 10a is lower than that of the first air hole 202, under the influence of the negative pressure difference, the blocking piece 212 is adsorbed to move to the first air hole 202, the elastic piece 211 is deformed, until the blocking piece 212 blocks the first air hole 202, at this time only a small part of the external gas can be sucked into the air cavity 11 through the second air hole 203 with small area, which is beneficial to reduce the air leakage of the suction port 10a; when the suction port 10a is covered by the printing material and the external negative pressure assembly works, the gas in the first air suction cavity 201 is sucked into the air cavity 11 through the second air hole 203, so that the negative pressure of the first air suction cavity 201 gradually approaches the negative pressure of the air cavity 11, under the action of the elastic force of the elastic piece 211, the blocking piece 212 gradually returns to the original position, the first air hole 202 restores the conduction, the suction port 10a restores the high negative pressure, so that the suction port 10a adsorbs the printing material. In some embodiments, the shape of the blocking piece 212 is spherical, the shape of the first air hole 202 is funnel-shaped (not shown in the figure), along the direction from the first air suction cavity 201 to the second air suction cavity 204, the cross-sectional area of the first air hole 202 gradually decreases, the elastic piece 211 is a spring, so that when the suction port 10a is not covered by the printing material and the external negative pressure assembly works, the spherical blocking piece 212 can better block the first air hole 202; when the suction port 10a is covered by the printing material and the external negative pressure assembly works, during the process of returning to the suspended state, the first air hole 202 can be more quickly conducted, which is beneficial to the suction port 10a to quickly restore the high negative pressure. It can be understood that the shape of the elastic piece 211 is not limited to spherical, the shape of the first air hole 202 is not limited to funnel-shaped, and the elastic piece 211 is not limited to spring, which can be adjusted according to actual needs, for example, the shape of the blocking piece 212 is square, the shape of the first air hole 202 is ladder-shaped, and the elastic piece 211 is a spring piece, a circlip or an elastic support. In addition, the structure of the elastic assembly 21 is not limited to the structure composed of the blocking piece 212 and the elastic piece 211, and other structures can be used to block or unblock the first air hole 202.

[0036] In a further preferred embodiment, the tubular body 20 is further provided with a second suction chamber 204 and a third air hole 205. The first air hole 202 connects the second suction chamber 204 and the first suction chamber 201, and the third air hole 205 connects the second suction chamber 204 and the air chamber 11. The area of ​​the third air hole 205 is larger than the area of ​​the second air hole 203, so that when the external negative pressure device is working, the negative pressure value near the third air hole 205 is higher than the negative pressure value near the second air hole 203. One end of the elastic member 211 is fixed to the inner surface of the second suction chamber 204, and the other end of the elastic member 211 passes through the first air hole 202 and is fixed to the blocking member 212. In this way, when the adsorption port 10a is not covered by printing material and the external negative pressure component is working, the external gas will be drawn into the first suction chamber 201 through the adsorption port 10a (e.g., Fig. 6 (As shown by the dashed line), this causes the negative pressure in the first suction chamber 201 to be lower than the negative pressure in the second suction chamber 204. Under the influence of the negative pressure difference, the blocking member 212 is attracted and moves towards the first air hole 202. The elastic member 211 deforms until the blocking member 212 blocks the first air hole 202. At this time, only a small portion of the outside air will be drawn into the air chamber 11 through the smaller area of ​​the second air hole 203 (as shown by the dashed line). Fig. 6 (As shown by the dotted line), this helps reduce air leakage at the adsorption port 10a. When the adsorption port 10a is covered by printing material and the external negative pressure component is working, the gas in the first suction chamber 201 will be drawn into the air chamber 11 through the second air hole 203, so that the negative pressure of the first suction chamber 201 gradually approaches the negative pressure of the second suction chamber 204. Under the action of the elastic force of the elastic member 211, the blocking member 212 gradually returns to its original position, the first air hole 202 resumes conduction, the first suction chamber 201 and the second suction chamber 204 resume communication, and the adsorption port 10a resumes high negative pressure, so that the adsorption port 10a adsorbs the printing material.

[0037] To facilitate the reader's understanding of the inventive concept of this invention, the working process of the adsorption platform 1000 is described below:

[0038] When the adsorption platform 1000 is working, the external negative pressure component is activated. The negative pressure component draws air into the air chamber 11 through the connection port 12, making the air chamber 11 have a high negative pressure. The air chamber 11 draws air into the second air hole 203 and the third air hole 205, making the first air suction chamber 201 and the second air suction chamber 204 have a high negative pressure. The first air hole 202 connects the first air suction chamber 201 and the second air suction chamber 204, so that the negative pressure of the first air suction chamber 201 and the second air suction chamber 204 is consistent. The first air suction chamber 201 draws air into the adsorption port 10a, so that the adsorption port 10a can adsorb printing material.

[0039] In the embodiment of the present application, the adsorption platform 1000 comprises a platform body 100 provided with a bearing surface 10 provided with an adsorption port 10a, and an adjusting assembly 200 fixed to the platform body 100, the adjusting assembly 200 comprising a tubular body 20 provided with an opening 207, a first air suction cavity 201, a first air hole 202, a second air hole 203, a second air suction cavity 204 and a third air hole 205, and an elastic assembly 21 comprising an elastic member 211 and a blocking member 212, the first air suction cavity 201 and the external negative pressure assembly being communicated through the first air hole 202, so that when the adsorption port 10a is not covered by printing material and the external negative pressure assembly is working, external gas is sucked into the first air suction cavity 201 through the adsorption port 10a, the negative pressure of the first air suction cavity 201 is lower than that of the second air suction cavity 204, the blocking member 212 is adsorbed to move to the first air hole 202 under the influence of the negative pressure difference, the elastic member 211 is deformed, and the blocking member 212 blocks the first air hole 202, at this time, only a small part of external gas is sucked into the air cavity 11 through the second air hole 203 with a small area, which is beneficial to reduce air leakage of the adsorption port 10a; when the adsorption port 10a is covered by printing material and the external negative pressure assembly is working, gas in the first air suction cavity 201 is sucked into the air cavity 11 through the second air hole 203, the negative pressure of the first air suction cavity 201 gradually approaches that of the second air suction cavity 204, the blocking member 212 gradually returns to the original position under the action of the elastic force of the elastic member 211, the first air hole 202 is restored to be open, the first air suction cavity 201 and the second air suction cavity 204 are restored to be communicated, and the adsorption port 10a is restored to high negative pressure, so that the adsorption port 10a adsorbs the printing material.

[0040] The present application also provides a printing device, which comprises the adsorption platform 1000, and the functions and structure of the adsorption platform 1000 can be known from the above embodiment, which will not be described here.

[0041] It should be noted that the preferred embodiments of the present application are described in the specification and its drawings only for the purpose of better understanding the present application, and the present application can be implemented in many different forms, and is not limited to the embodiments described in the specification, and these embodiments are not intended to be additional limitations on the content of the present application, and the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive. Furthermore, each of the above technical features continues to be combined with each other, forming various embodiments not listed above, which are all considered to be within the scope of the present application specification; further, for those skilled in the art, the above description can be improved or changed, and all these improvements and changes shall fall within the scope of protection of the claims of the present application.

Claims

1. An adsorption platform, characterized in that, The application relates to an adsorption platform. The platform body is provided with a bearing surface for bearing printing materials and an adsorption port located on the bearing surface. The adjusting assembly is fixed to the platform body and comprises a tubular body and an elastic assembly. The tubular body is provided with a first air suction cavity, a first air hole and a second air hole. The adsorption port, the first air hole and the second air hole are communicated with the first air suction cavity. The first air hole and the second air hole are used for being communicated with an external negative pressure assembly. The area of the first air hole is larger than that of the second air hole. The elastic assembly comprises an elastic piece and a blocking piece. One end of the elastic piece is fixed to the tubular body, and the other end of the elastic piece is fixed to the blocking piece. The blocking piece is suspended. When the adsorption port is not covered by the printing materials and the external negative pressure assembly works, the elastic piece deforms, and the blocking piece blocks the first air hole. When the adsorption port is covered by the printing materials and the external negative pressure assembly works, the elastic piece restores deformation under the action of the second air hole, and the blocking piece restores the suspended state. The tubular body is further provided with a second air suction cavity and a third air hole. The first air hole communicates the second air suction cavity and the first air suction cavity. The third air hole is communicated with the second air suction cavity. The third air hole is used for being communicated with the external negative pressure assembly. The area of the third air hole is larger than that of the second air hole.

7. A printing device, characterized by, One end of the elastic piece is fixed to the inner surface of the second air suction cavity. The other end of the elastic piece passes through the first air hole and is fixed to the blocking piece. The adsorption port, the first air suction cavity, the first air hole and the second air suction cavity are sequentially communicated. The platform body is provided with an air cavity and a connecting port. The second air hole, the third air hole and the connecting port are communicated with the air cavity. The connecting port is used for being communicated with the external negative pressure assembly.

2. The adsorption platform according to claim 1, wherein one end of the elastic piece is fixed to the inner wall of the second air suction cavity.

3. The adsorption platform according to claim 1, wherein the shape of the blocking piece is spherical.

4. The adsorption platform according to claim 1, wherein the elastic piece is a spring.

5. The adsorption platform according to claim 1, wherein the shape of the first air hole is funnel-shaped.

6. The adsorption platform according to any one of claims 1-5, wherein the number of the adsorption ports and the adjusting assemblies is multiple.

7. The adsorption platform according to any one of claims 1-6.

8. The adsorption platform according to any one of claims 1-6.

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