A pressing device and a printing device

Abstract

The present invention provides a clamping device and a printing device, wherein the clamping device includes a clamping block seat, a clamping cover plate, a clamping rod, an elastic component, a handle wrench, and a pin. When the axial direction of the handle wrench forms a first angle with the axial direction of the clamping rod, the elastic component is in a first compression state, one axial end of the handle wrench abuts against the clamping cover plate, and the first end of the clamping rod is located in the channel of the clamping block seat. When the axial direction of the handle wrench forms a second angle with the axial direction of the clamping rod, the elastic component is in a second compression state, one radial end of the handle wrench abuts against the clamping cover plate, and the first end of the clamping rod protrudes outside the channel of the clamping block seat. The present invention can achieve a fast and reliable connection between the print head and the controller body, utilizing the characteristics that the elastic component itself is compressed when subjected to pressure and extends when the pressure is released. By pulling the handle wrench so that the handle wrench and the clamping rod are at a specific angle, the clamping rod can be extended to clamp the print head or retracted to release the print head, thereby having the advantages of reliable mechanical connection and convenient operation.

Description

Technical Field

[0001] The invention belongs to the field of electronic product machinery manufacturing and relates to a clamp, in particular to a pressing device and a printing device. Background Art

[0002] Under the action of a controller, the bioprinting nozzle can eject ink containing cells or other bioactive substances through one or more nozzles according to preset rules to achieve various bioprinting applications, such as pattern printing of cell / microsphere materials, array printing of biological reagents / cells, single cell printing, cell transfection, etc.

[0003] At present, the connection between the bioprinting nozzle and the controller body has problems such as complex tightening method, cumbersome operation, need for tools (such as fixing with screws), large size, and short life. There is currently no effective method for fast and reliable connection between the bioprinting nozzle and the controller body.

[0004] Therefore, how to provide a new locking device and bioprinting device to achieve a fast and reliable connection between the pressed parts and the controller body has become an important technical problem that needs to be solved urgently by those skilled in the art. Summary of the Invention

[0005] In view of the above-mentioned shortcomings of the prior art, an object of the present invention is to provide a pressing device and a printing device for solving the problems of complex connection and low reliability between the printing head and the controller body in the prior art.

[0006] To achieve the above-mentioned and other related purposes, the present invention provides a pressing device, comprising:

[0007] A pressing block seat, wherein at least one channel is provided in the pressing block seat;

[0008] A pressing cover plate is connected to the pressing block seat, and a through hole is provided in the pressing cover plate and is connected to the channel;

[0009] a pressure rod passing through the passage and the through hole, the pressure rod comprising a first end and a second end arranged opposite to each other along the axial direction of the pressure rod, and comprising an elastic component limiting portion arranged near the first end and a through hole arranged near the second end;

[0010] an elastic component, sleeved on the periphery of the pressure rod and located in the channel, with two ends of the elastic component respectively abutting against the elastic component limiting portion and the pressing cover plate;

[0011] A handle wrench comprising at least one connecting hole matched with the through hole;

[0012] The pin shaft passes through the through hole and the connecting hole to movably connect the handle wrench to the pressure rod, wherein, when the axial direction of the handle wrench is at a first angle to the axial direction of the pressure rod, the elastic component is in a first compression state, one axial end of the handle wrench abuts against the clamping cover plate, and the first end of the pressure rod is located in the channel; when the axial direction of the handle wrench is at a second angle different from the first angle to the axial direction of the pressure rod, the elastic component is in a second compression state different from the first compression state, one radial end of the handle wrench abuts against the clamping cover plate, and the first end of the pressure rod protrudes out of the channel to abut against the pressed object.

[0013] Optionally, the first angle ranges from 175° to 185°, and the second angle ranges from 85° to 95°.

[0014] Optionally, the handle wrench includes a first contact plane and a second contact plane. When the axial direction of the handle wrench and the axial direction of the pressure rod are at the first angle, the first contact plane contacts the clamping cover plate. When the axial direction of the handle wrench and the axial direction of the pressure rod are at the second angle, the second contact plane contacts the clamping cover plate. The distance between the first contact plane and the connecting hole is greater than the distance between the second contact plane and the connecting hole.

[0015] Optionally, a receiving groove is provided at one end of the handle wrench connected to the pressure rod, and a pair of connecting holes are arranged on two side walls of the receiving groove opposite to each other.

[0016] Optionally, a groove is provided on one end of the pressing cover plate facing the handle wrench, and the handle wrench rests against the bottom surface of the groove.

[0017] Optionally, the pressing device further includes a sleeve, which is sleeved on the periphery of the pressing rod, and one end of the sleeve is embedded in the through hole of the pressing cover plate.

[0018] Optionally, the outer wall of the pressure rod is further provided with a first sleeve limiting portion, and the first sleeve limiting portion is located between the elastic component limiting portion and the through hole; the inner wall of the through hole is further provided with a second sleeve limiting portion.

[0019] Optionally, the clamping device also includes a handle shell, which is connected to the clamping cover plate, and a receiving space is provided inside the handle shell. The handle shell also includes a guide groove connected to the receiving space, and one end of the handle wrench with the connecting hole is located in the receiving space, and the other end protrudes from the outside of the handle shell through the guide groove.

[0020] Optionally, the elastic component includes a spring.

[0021] Optionally, the elastic component comprises elastic plastic.

[0022] The present invention also provides a printing device, comprising a controller body, a print head and a clamping device as described above, wherein the controller body is provided with a first interface, the print head is provided with a second interface matching the first interface, the clamping device is fixed on the controller body, the print head is placed on the controller body and is located between the first interface and the clamping device, and when the axial direction of the handle wrench and the axial direction of the pressure rod are at the second angle, the first end of the pressure rod presses the print head so that the second interface is connected to the first interface.

[0023] Optionally, the printing nozzle comprises a biological printing nozzle.

[0024] As described above, the clamping device and printing device of the present invention can achieve a fast and reliable connection between the print head and the controller body. By utilizing the characteristics that the elastic component itself is compressed when under pressure and stretches after the pressure part is released, by pulling the handle wrench so that the handle wrench and the pressure rod are at a specific angle, the pressure rod can be extended to clamp the print head or retracted to release the print head. It has the advantages of reliable mechanical connection and easy operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 Shown is a schematic diagram of the exploded structure of the pressing device of the present invention.

[0026] Figure 2 It is a schematic diagram of the three-dimensional structure of the pressing device of the present invention when it is fully assembled and the pressing rod is in a released state.

[0027] Figure 3 Display as Figure 2 Cross-section of the structure shown.

[0028] Figure 4 It shows a schematic three-dimensional structure diagram of the pressing device of the present invention when it is fully assembled and the pressing rod is in a pressing state.

[0029] Figure 5 Display as Figure 4 Cross-section of the structure shown.

[0030] Figure 6 It shows a schematic three-dimensional structure diagram of the printing device of the present invention when the printing head is removed.

[0031] Figure 7 It shows a schematic three-dimensional structure diagram of the printing device of the present invention when the print head is in a compressed state.

[0032] Component number description

[0033] 1. Block seat

[0034] Channel 101

[0035] 2 Press the cover tightly

[0036] 201 Perforation

[0037] 202 grooves

[0038] 203 Second sleeve limiting part

[0039] 3. Pressure rod

[0040] 301 elastic component limiting part

[0041] 302 through hole

[0042] 303 First sleeve limiter

[0043] 4 elastic components

[0044] 5-handle wrench

[0045] 501 connection hole

[0046] 502 first contact plane

[0047] 503 Second contact plane

[0048] 504 Storage Tank

[0049] 6 pins

[0050] 7 Bushing

[0051] 8. Handle housing

[0052] 801 guide groove

[0053] 9 Controller body

[0054] 901 First Interface

[0055] 10 Print head DETAILED DESCRIPTION

[0056] The following describes the embodiments of the present invention through specific examples. Those skilled in the art will readily understand the other advantages and benefits of the present invention from the disclosure herein. The present invention may also be implemented or applied through various other specific embodiments, and the details in this specification may be modified or altered based on different viewpoints and applications without departing from the spirit of the present invention.

[0057] See also Figures 1 to 7It should be noted that the diagrams provided in this embodiment are merely schematic illustrations of the basic concept of the present invention. Therefore, the diagrams only show components related to the present invention and are not drawn according to the number, shape, and size of components in actual implementation. In actual implementation, the type, quantity, and proportion of each component may be changed arbitrarily, and the component layout may also be more complex.

[0058] Example 1

[0059] This embodiment provides a pressing device, see Figures 1 to 5 ,in, Figure 1 Shown is a schematic diagram of the exploded structure of the pressing device, Figure 2 It shows a three-dimensional structural diagram of the clamping device when it is assembled and the pressure rod is in a released state. Figure 3 Display as Figure 2 A cross-sectional view of the structure shown, Figure 4 It shows a three-dimensional structural diagram of the clamping device after it is assembled and the clamping rod is in a clamping state. Figure 5 Display as Figure 4 The cross-sectional view of the structure shown in the figure shows that the pressing device includes a pressing block seat 1, a pressing cover plate 2, a pressing rod 3, an elastic component 4, a handle wrench 5 and a pin 6, wherein the pressing block seat 1 is provided with at least one channel 101; the pressing cover plate 2 is connected to the pressing block seat 1, and the pressing cover plate 2 is provided with a through hole 201 connected to the channel 101; the pressing rod 3 passes through the channel 101 and the through hole 201, and the pressing rod 3 includes a first end and a second end arranged opposite to each other along the axial direction of the pressing rod 3, and includes an elastic component limiting portion 301 arranged near the first end and a through hole 302 arranged near the second end; the elastic component 4 is sleeved on the periphery of the pressing rod 3 and is located in the channel 101, and the two ends of the elastic component 4 respectively press against the elastic component limiting portion 301 and the pressing cover plate 2; the hand The handle wrench 5 includes at least one connecting hole 501 that matches the through hole 302; the pin 6 passes through the through hole 302 and the connecting hole 501 to enable the handle wrench 5 to be movably connected to the pressure rod 3, wherein when the axial direction of the handle wrench 5 forms a first angle with the axial direction of the pressure rod 3, the elastic component 4 is in a first compression state, one axial end of the handle wrench 5 abuts the compression cover plate 2, and the first end of the pressure rod 3 is located in the channel 101; when the axial direction of the handle wrench 5 forms a second angle different from the first angle with the axial direction of the pressure rod 3, the elastic component 4 is in a second compression state different from the first compression state, one radial end of the handle wrench 5 abuts the compression cover plate 2, and the first end of the pressure rod 3 protrudes outside the channel 101 to abut the object to be compressed. The compressed object includes but is not limited to a bioprinting nozzle.

[0060] As an example, the elastic component 4 comprises a spring, preferably a metal or alloy spring, which has the advantages of long life and stable clamping force. In other embodiments, the elastic component 4 may also be made of elastic plastic, and is not limited to a spring form, utilizing the elastic force generated by the elastic deformation of the plastic material for compression. The disadvantages of elastic deformation of plastic materials are short life and unstable elastic force after material fatigue, but the advantage is low cost.

[0061] As an example, the range of the first angle is 175° to 185°, and the range of the second angle is 85° to 95°. In this embodiment, the first angle is 180°, and the second angle is 90°. In other words, by turning the rotatable handle wrench 5 and rotating it 90° clockwise or counterclockwise, the telescopic state of the pressure rod 3 can be changed. In actual application scenarios, after placing the pressed part, rotate the handle wrench 3 in the opposite direction, and the spring releases the elastic force under the action of the elastic force, driving the pressure rod so that the head of the pressure rod extends and presses the part.

[0062] It should be noted that after the pressure rod 3 is extended and compresses the component, the spring may not be fully released and may remain compressed, so that the head of the pressure rod 3 does not fully extend, leaving an extension margin of approximately 0.5 mm (adjustable according to actual needs) to ensure that the head of the pressure rod 3 and the pressed component are completely in contact. During compression, in order to maintain this approximately 0.5 mm compression margin, the handle wrench is not completely vertical, for example, deviating from 90° by approximately 3°.

[0063] It should be pointed out that, in other embodiments, the first angle or the second angle may be set to other angles by adjusting the profile of the handle wrench 5, and this should not overly limit the scope of protection of the present invention.

[0064] As an example, the handle wrench 5 includes a first contact plane 502 located at one axial end of the handle wrench 5 and a second contact plane 503 located at one radial end of the handle wrench 5. When the axial direction of the handle wrench 5 forms the first angle with the axial direction of the pressure rod 3, the first contact plane 502 abuts against the compression cover plate 2. When the axial direction of the handle wrench 5 forms the second angle with the axial direction of the pressure rod 3, the second contact plane 503 abuts against the compression cover plate 2. The planar contact surface contributes to contact stability when the pressure rod 3 is in a released state or a compressed state.

[0065] Specifically, the distance between the first contact plane 502 and the connecting hole 501 is greater than the distance between the second contact plane 503 and the connecting hole 501, so that the degree of compression of the elastic component 4 in the first compression state is greater than the degree of compression in the second compression state, thereby achieving the first end of the pressure rod 3 retracting into the channel 101 or protruding out of the channel 101.

[0066] As an example, one end of the handle wrench 5 connected to the pressure rod 3 is provided with a receiving groove 504, and a pair of connecting holes 501 are disposed oppositely on the side walls of the receiving groove 504. The second end of the pressure rod 3 is located in the receiving groove 504, and when the pressure rod 3 is in the released state, a portion of the pressure rod 3 is located in the receiving groove 504. In this embodiment, the portion of the pressure rod 3 located in the receiving groove 5 has a pair of oppositely disposed planar sidewalls. The presence of the receiving groove 504 helps limit radial displacement of the pressure rod 3 and improve stability.

[0067] As an example, the end of the compression cover plate 2 facing the handle wrench 5 is provided with a groove 202, and the handle wrench 5 abuts against the bottom surface of the groove 202. The bottom surface of the groove 202 and the handle wrench 5 are flat at their contact point to ensure contact stability. The groove 202 helps limit radial displacement of the handle wrench 5.

[0068] As an example, the pressing device further includes a sleeve 7, which is sleeved around the outer periphery of the pressing rod 3, and one end of the sleeve 7 is embedded in the through-hole 201 of the pressing cover plate 2. The sleeve 7 can serve as a guide, improve the smoothness of operation, and reduce the wear of the pressing cover plate 2.

[0069] As an example, the outer wall of the pressure rod 3 is further provided with a first sleeve limiting portion 303, which is located between the elastic component limiting portion 301 and the through hole 302; the inner wall of the through hole 201 is further provided with a second sleeve limiting portion 203.

[0070] As an example, to prevent hands from being pinched, the clamping device also includes a handle shell 8, which is connected to the clamping cover 2. A receiving space is provided inside the handle shell 8, and the handle shell 8 includes a guide groove 801 connected to the receiving space. One end of the handle wrench 5 having the connecting hole 501 is located in the receiving space, and the other end passes through the guide groove 801 and protrudes from the outside of the handle shell 8.

[0071] As an example, the clamping cover 2 is also located in the receiving space, and the clamping cover 2 and the handle housing 8, as well as the clamping cover 2 and the pressure block seat 1 can be connected by fasteners (such as screws), and the corresponding positions of the pressure block seat 1, the clamping cover 2 and the handle housing 8 are provided with mounting holes that match the fasteners.

[0072] It should be pointed out that Figure 1-Figure 5 What is shown is a case where one channel 101 is provided in the pressure block seat 1. However, in other embodiments (not shown), a plurality of channels 101 may also be provided in the pressure block seat 1, such as a four-channel pressing device, each channel respectively cooperating with its own pressing cover plate 2, pressure rod 3, elastic component 4, handle wrench 5, pin shaft 6 and other components to apply pressure to multiple pressed objects separately.

[0073] The pressing device of this embodiment is in the release position (such as Figure 2 and Figure 3 As shown), the handle wrench and the pressure rod are in a straight line, that is, the handle wrench and the pressure rod are at an angle of 180 degrees. The pressure rod is retracted into the pressure block seat. At this time, the elastic component is under the pressure of the pressure rod and is in a compressed state. The pressure rod, pin shaft, and handle wrench remain stationary under the elastic force of the elastic component. When the pressure rod is required to press the parts (such as Figure 4 and Figure 5 As shown in the figure, the handle wrench is pulled, causing the compression cover and the handle wrench to slide relative to each other. Driven by the elastic component, the pressure rod extends out of the pressure block seat, reducing the angle between the handle wrench and the pressure rod from 180 degrees. When the pressure rod extends outward, it can compress the part. At this time, the pressure rod still has some extension margin, so the residual elastic force of the elastic component acts on the compressed part. The compression device of this embodiment has the advantages of simple compression method, easy single-handed operation, no need for tools, small size, and long service life.

[0074] Example 2

[0075] This embodiment provides a printing device, see Figure 6 and Figure 7 , which is a schematic diagram of the three-dimensional structure of the printing device, wherein the printing device includes a controller body 9, a print head 10 and a clamping device as described in Example 1, wherein the controller body 9 is provided with a first interface 901, and the print head 10 is provided with a second interface (not shown) that cooperates with the first interface 901.

[0076] Specifically, the clamping device is fixed on the controller body 9, and the print head 10 is placed on the controller body 9 and is located between the first interface 901 and the clamping device. When the axial direction of the handle wrench 5 and the axial direction of the pressure rod 3 are at the second angle, the first end of the pressure rod 3 presses the print head 10, so that the second interface is connected to the first interface 901 to transmit data, wherein a printing chip is provided in the print head 10.

[0077] As an example, the print head 10 includes but is not limited to a bioprinting head. Taking a bioprinting head as an example, under the action of a controller, it can eject ink containing cells or other bioactive substances through one or more nozzles according to preset rules to achieve various bioprinting applications, such as pattern printing of cell / microsphere materials, array printing of biological reagents / cells, single cell printing, cell transfection, etc. Depending on the bioprinting application, the structure of the print head will also vary. Figure 6 and Figure 7 This is only an example and should not unduly limit the scope of protection of the present invention.

[0078] The printing device of this embodiment adopts the clamping device described in the first embodiment, which can realize fast, reliable, convenient and repeatable positioning and clamping between the bio-printing nozzle and the controller body. When in use, the clamping device is fixed to the controller body 9, and the handle wrench 5 of the clamping device is pulled to put the pressure rod 3 in the released state (such as Figure 6 (as shown). Place the print head 10 into the corresponding position within the controller body 9, then pull the handle wrench 5 of the clamping device in the opposite direction. Under the elastic force of the elastic component, the pressure rod 3 extends out of the pressure block seat 1, compressing the print head 10. To remove the print head 10 from the controller body 9, simply pull the handle wrench 5 of the clamping device to release the pressure rod 3, and the print head 10 can be removed.

[0079] In summary, the clamping device and printing device of the present invention enable a quick and reliable connection between the print head and the controller body. By leveraging the elastic component's inherent compression upon application of pressure and its extension upon full or partial release of the pressure, the handle wrench can be turned to position the handle wrench and the pressure rod at a specific angle, allowing the pressure rod to extend to clamp the print head or retract to release it. This provides the advantages of a reliable mechanical connection and convenient operation. Therefore, the present invention effectively overcomes the various shortcomings of the prior art and possesses high industrial value.

[0080] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the present invention. Anyone skilled in the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by one of ordinary skill in the art without departing from the spirit and technical principles disclosed herein are intended to be covered by the claims of the present invention.

Claims

1. A pressing device, characterized in that: include: A pressing block seat, wherein at least one channel is provided in the pressing block seat; A pressing cover plate is connected to the pressing block seat, and a through hole is provided in the pressing cover plate and is connected to the channel; a pressure rod passing through the passage and the through hole, the pressure rod comprising a first end and a second end arranged opposite to each other along the axial direction of the pressure rod, and comprising an elastic component limiting portion arranged near the first end and a through hole arranged near the second end; an elastic component, sleeved on the periphery of the pressure rod and located in the channel, with two ends of the elastic component respectively abutting against the elastic component limiting portion and the pressing cover plate; A handle wrench comprising at least one connecting hole matched with the through hole; a pin shaft passing through the through hole and the connecting hole so that the handle wrench is movably connected to the pressure rod, wherein, when the axial direction of the handle wrench forms a first angle with the axial direction of the pressure rod, the elastic component is in a first compression state, one axial end of the handle wrench abuts against the pressing cover plate, and the first end of the pressure rod is located in the channel; when the axial direction of the handle wrench forms a second angle different from the first angle with the axial direction of the pressure rod, the elastic component is in a second compression state different from the first compression state, one radial end of the handle wrench abuts against the pressing cover plate, and the first end of the pressure rod protrudes out of the channel to abut against the pressed object; The handle wrench includes a first contact plane and a second contact plane, when the axial direction of the handle wrench and the axial direction of the pressure rod form the first angle, the first contact plane contacts the pressing cover plate, when the axial direction of the handle wrench and the axial direction of the pressure rod form the second angle, the second contact plane contacts the pressing cover plate, and the distance between the first contact plane and the connecting hole is greater than the distance between the second contact plane and the connecting hole; the end of the handle wrench connected to the pressure rod is provided with a receiving groove, and a pair of the connecting holes are arranged on two side walls of the receiving groove opposite to each other; The pressing device is used to achieve positioning and pressing between the biological printing nozzle and the controller body.

2. The pressing device according to claim 1, characterized in that: The first angle ranges from 175° to 185°, and the second angle ranges from 85° to 95°.

3. The pressing device according to claim 1, characterized in that: A groove is provided on one end of the pressing cover plate facing the handle wrench, and the handle wrench abuts against the bottom surface of the groove.

4. The pressing device according to claim 1, characterized in that: The pressing device further comprises a shaft sleeve, which is sleeved on the periphery of the pressing rod, and one end of the shaft sleeve is embedded in the through hole of the pressing cover plate.

5. The pressing device according to claim 4, characterized in that: The outer wall of the pressure rod is further provided with a first shaft sleeve limiting portion, and the first shaft sleeve limiting portion is located between the elastic component limiting portion and the through hole; the inner wall of the through hole is further provided with a second shaft sleeve limiting portion.

6. The pressing device according to claim 1, characterized in that: The clamping device also includes a handle shell, which is connected to the clamping cover plate. A receiving space is provided inside the handle shell, and the handle shell includes a guide groove connected to the receiving space. One end of the handle wrench with the connecting hole is located in the receiving space, and the other end passes through the guide groove and protrudes outside the handle shell.

7. The pressing device according to claim 1, characterized in that: The elastic component comprises elastic plastic.

8. A printing device, characterized in that: It includes a controller body, a print head and a clamping device as described in any one of claims 1 to 7, the controller body is provided with a first interface, the print head is provided with a second interface that cooperates with the first interface, the clamping device is fixed on the controller body, the print head is placed on the controller body and is located between the first interface and the clamping device, when the axial direction of the handle wrench and the axial direction of the pressure rod are at the second angle, the first end of the pressure rod presses the print head to connect the second interface with the first interface.

9. The printing device according to claim 8, characterized in that: The printing nozzle includes a biological printing nozzle.

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