Automatic filling device

Abstract

The present application relates to an automatic liquid injection device. In the automatic liquid injection device, the first material mounting seat and the liquid injection valve can move relative to the guide member respectively, and the first guide groove in the guide member guides the conduit of the liquid injection member, and the second guide groove guides the liquid injection needle, so that the liquid injection needle can accurately extend into the conduit, so as to inject a trace amount of liquid into the liquid injection member under the control of the liquid injection valve body. In this way, the above-mentioned automatic liquid injection device can realize automatic liquid injection of the liquid injection member. Compared with the manual liquid injection method, this automatic liquid injection method can realize micro-injection and can ensure a higher liquid injection amount accuracy.

Description

Technical Field

[0001] The invention relates to the technical field of micro-liquid injection, in particular to an automatic liquid injection device. Background Art

[0002] At present, as the thickness of electronic products becomes thinner and the volume becomes smaller, the thickness of the heat sink in electronic products also becomes thinner and the size becomes smaller. In the process of making the heat sink, only a small amount of liquid can be injected into the heat sink, and the error requirement of the injection amount is relatively high. For example, the injection amount of the heat sink in the mobile phone is less than 20mg, and the injection amount error is required to be controlled within ±0.1mg. The conventional manual injection method can no longer meet the high standard requirements of trace injection. It is necessary to develop a device that can realize automatic injection. Summary of the invention

[0003] Based on this, it is necessary to provide an automatic liquid injection device.

[0004] An automatic liquid injection device, comprising:

[0005] A first material mounting seat for mounting the part to be injected with liquid; and

[0006] A liquid injection mechanism, the liquid injection mechanism comprising a liquid guide tube, a guide member and a liquid injection valve, the liquid injection valve comprising a liquid injection valve body connected to the liquid guide tube and a liquid injection needle connected to the liquid injection valve body, the guide member is provided with a first guide groove and a second guide groove connected to the first guide groove;

[0007] Among them, the first material mounting seat can move relative to the guide member so that the conduit of the part to be injected moves along the first guide groove, the injection valve can move relative to the guide member so that the injection needle moves along the second guide groove and extends into the conduit, and the injection valve body can control the injection amount of the part to be injected by the injection needle.

[0008] In the above automatic liquid injection device, the first material mounting seat and the liquid injection valve can move relative to the guide member respectively, and the first guide groove in the guide member guides the conduit of the liquid injection member, and the second guide groove guides the liquid injection needle, so that the liquid injection needle can accurately extend into the conduit, thereby injecting a trace amount of liquid into the liquid injection member under the control of the liquid injection valve body. In this way, the above automatic liquid injection device can realize automatic liquid injection of the liquid injection member. Compared with the manual liquid injection method, this automatic liquid injection method can realize micro-injection and can ensure a higher injection volume accuracy.

[0009] In one embodiment, the injection mechanism includes a first sensor, which is built into the guide member and corresponds to the connection between the first guide groove and the second guide groove; the automatic injection device includes a first driving mechanism connected to the first sensor, and the first driving mechanism is connected to the first material mounting seat to drive the first material mounting seat to move.

[0010] In one embodiment, the automatic liquid injection device includes a first straightening mechanism for straightening the catheter of the part to be injected, the first straightening mechanism includes a first straightening drive assembly and two first clamping blocks, the two first clamping blocks are located between the first material mounting seat and the guide member, the first straightening drive assembly is connected to the two first clamping blocks to drive the two first clamping blocks to approach each other to clamp the catheter, and can drive the two first clamping blocks away from the first material mounting seat.

[0011] In one embodiment, the automatic injection device includes a needle length measuring mechanism, which includes an electrode plate and an electrode plate driving assembly, and the electrode plate driving assembly is connected to the electrode plate to drive the electrode plate to move; the electrode plate is located on one side of the first guide groove, and the injection needle can pass through the first guide groove and abut against the electrode plate.

[0012] In one of the embodiments, at least one of the following schemes is also included:

[0013] The injection mechanism includes a pressure stabilizer, which is installed on the catheter to stabilize the liquid pressure in the catheter;

[0014] The liquid injection mechanism comprises a heating rod embedded in the guide member, and the heating rod is used to heat the guide member;

[0015] The liquid injection mechanism includes a blower, and the blower is used to blow compressed air into the first guide groove and the second guide groove.

[0016] In one embodiment, the automatic liquid injection device includes a second material mounting seat for mounting the part to be injected and a tube depth detection mechanism for performing tube depth detection on the part to be injected, the tube depth detection mechanism includes a measuring needle and a second sensor, the measuring needle can move relative to the second material mounting seat to extend into the part to be injected mounted on the second material mounting seat, and trigger the second sensor when it abuts against the part to be injected.

[0017] In one embodiment, the automatic liquid injection device includes a second straightening mechanism for straightening the catheter of the part to be injected, the second straightening mechanism includes a second straightening drive assembly and two second clamping blocks, the second straightening drive assembly is connected to the two second clamping blocks to drive the two second clamping blocks to approach each other to clamp the catheter, and can drive the two second clamping blocks away from the second material mounting seat.

[0018] In one embodiment, the pipe depth detection mechanism includes a probe drive assembly, a mounting frame and a fixed column, the second sensor is mounted on the mounting frame, the probe is fixedly mounted on the fixed column, and the fixed column is movably mounted on the mounting frame, the probe drive assembly can drive the mounting frame, the fixed column, the probe and the second sensor to move a predetermined distance, and the second sensor can be triggered when the fixed column moves relative to the mounting frame.

[0019] In one embodiment, the pipe depth detection mechanism includes an elastic member, wherein the elastic member is connected between the mounting frame and the fixing column, and the elastic member can apply an elastic force to the fixing column toward the measuring needle.

[0020] In one embodiment, the automatic liquid injection device further includes a transport mechanism, and the transport mechanism is capable of transporting the part to be injected with liquid on the second material mounting seat to the first material mounting seat. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 An automatic liquid injection device according to an embodiment of the present invention;

[0022] Figure 2 for Figure 1 A schematic diagram of the structure of each mechanism installed on the first base frame in the automatic liquid injection device shown;

[0023] Figure 3 for Figure 2 A schematic diagram of the structure enlargement at the center A;

[0024] Figure 4 for Figure 2 A schematic diagram of the matching relationship between the injection valve, the guide member and the member to be injected;

[0025] Figure 5 for Figure 1 A schematic diagram of the structure of each mechanism installed on the second base frame in the automatic liquid injection device shown;

[0026] Figure 6 for Figure 5 A magnified schematic diagram of the structure at point B in the middle. DETAILED DESCRIPTION

[0027] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention 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 invention. However, the present invention 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 invention, so the present invention is not limited by the specific embodiments disclosed below.

[0028] In the description of the present invention, it should be understood that 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" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0029] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0030] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral 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 the present invention can be understood according to specific circumstances.

[0031] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a 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. A first feature being "below", "below" or "below" a 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.

[0032] It should be noted that when 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. When 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. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0033] Combination Figures 1 to 6 As shown, an automatic liquid injection device 10 according to an embodiment of the present invention is used to perform a micro-liquid injection on a liquid-injected part 90. For example, the liquid-injected part 90 is a heat sink in an electronic product such as a tablet computer or a mobile phone, and the micro-liquid injected is water.

[0034] Combination Figures 1 to 4 As shown, specifically, the automatic liquid injection device 10 includes a first material mounting seat 11 and a liquid injection mechanism 13. The first material mounting seat 11 is used to mount the part to be injected 90. The liquid injection mechanism 13 includes a liquid guide tube (not shown), a guide member 132 and a liquid injection valve 133. The liquid injection valve 133 includes a liquid injection valve body 134 connected to the liquid guide tube and a liquid injection needle 135 connected to the liquid injection valve body 134. The guide member 132 is provided with a first guide groove 136 and a second guide groove 137 connected to the first guide groove 136. The first material mounting seat 11 can move relative to the guide member 132 so that the guide tube 91 of the part to be injected 90 moves along the first guide groove 136. The liquid injection valve 133 can move relative to the guide member 132 so that the injection needle 135 moves along the second guide groove 137 and extends into the guide tube 91. The liquid injection valve body 134 can control the amount of liquid injected by the injection needle 135 into the part to be injected 90.

[0035] In the automatic liquid injection device 10, the first material mounting seat 11 and the liquid injection valve 133 can move relative to the guide member 132 respectively, and the first guide groove 136 in the guide member 132 guides the conduit 91 of the liquid injection part 90, and the second guide groove 137 guides the liquid injection needle 135, so that the liquid injection needle 135 can accurately extend into the conduit 91, so as to inject a trace amount of liquid into the liquid injection part 90 under the control of the liquid injection valve body 134. In this way, the automatic liquid injection device 10 can realize automatic liquid injection of the liquid injection part 90. Compared with the manual liquid injection method, this automatic liquid injection method can realize micro-liquid injection and can ensure a higher liquid injection amount accuracy.

[0036] Specifically in this embodiment, the injection mechanism 13 includes a first sensor 138, which is built into the guide member 132 and corresponds to the connection between the first guide groove 136 and the second guide groove 137. The automatic injection device 10 includes a first drive mechanism 15 connected to the first sensor 138, and the first drive mechanism 15 is connected to the first material mounting seat 11 to drive the first material mounting seat 11 to move. Specifically, the guide member 132 is provided with a mounting groove (not marked in the figure), the mounting groove is connected to the connection between the first guide groove 136 and the second guide groove 137, and the first sensor 138 is installed in the mounting groove to sense the conduit 91 extending to the connection between the first guide groove 136 and the second guide groove 137. It can be understood that when the first driving mechanism 15 drives the first material mounting seat 11 and the liquid injection piece 90 mounted thereon to move, the conduit 91 of the liquid injection piece 90 gradually extends into the guide piece 132 along the first guide groove 136 until it moves to the connection between the first guide groove 136 and the second guide groove 137, triggering the first sensor 138, and then the driving action of the first driving mechanism 15 stops, and the conduit 91 moves into place. Specifically, the first sensor 138 is an optical fiber.

[0037] Specifically, the first guide groove 136 includes a first conical tube section 136a and a first straight tube section 136b, and the first straight tube section 136b is located at one end of the first conical tube section 136a close to the second guide groove 137. In the direction gradually approaching the second guide groove 137, the first conical tube section 136a is in a conical shape with a gradually decreasing diameter, so that the catheter 91 can be smoothly introduced into the first straight tube section 136b. The diameter of the first straight tube section 136b matches the catheter 91 of the liquid-injected part 90. After the catheter 91 extends into the first straight tube section 136b, the first straight tube section 136b can limit the catheter 91 in the radial direction. Specifically, the second guide groove 137 includes a second conical tube section 137a and a second straight tube section 137b, and the second straight tube section 137b is located between the first straight tube section 136b and the second conical tube section 137a. In the direction gradually approaching the first guide groove 136, the second tapered tube section 137a is tapered with a gradually decreasing diameter, so that the injection needle 135 can be smoothly introduced into the second straight tube section 137b. The diameter of the second straight tube section 137b matches the injection needle 135. After the injection needle 135 extends into the second straight tube section 137b, the second straight tube section 137b can limit the injection needle 135 in the radial direction. Furthermore, the diameter of the second straight tube section 137b is smaller than the diameter of the first straight tube section 136b, so that a step is formed at the connection between the two. When the catheter 91 moves along the first straight tube section 136b, the catheter 91 can abut against the connection between the first straight tube section 136b and the second straight tube section 137b, thereby constituting a limit to the catheter 91 in the axial direction of the first straight tube section 136b. In addition, the provision of the second straight tube section 137 b can provide a good guide for the injection needle 135 , thereby preventing the injection needle 135 from bending.

[0038] Specifically in this embodiment, the injection mechanism 13 includes a heating rod 139 embedded in the guide member 132, and the heating rod 139 is used to heat the guide member 132. By heating the heating rod 139, the guide member 132 can be kept at a constant temperature, so that the injection valve 133 can inject liquid at a constant temperature, thereby improving the injection accuracy. Specifically, there are multiple heating rods 139, and the multiple heating rods 139 are arranged at intervals along the axial direction of the second straight tube section 137b. Since the length of the second straight tube section 137b is relatively long, the multiple heating rods 139 can maintain the injection needle 135 at a constant temperature in the axial direction of the second straight tube section 137b.

[0039] Specifically, the injection mechanism 13 includes a stabilizer (not shown), which is installed on the catheter to stabilize the liquid pressure in the catheter, thereby reducing the pressure fluctuation of the liquid in the catheter, ensuring the stability of the liquid pressure, and improving the injection accuracy. Specifically, the injection mechanism 13 includes a hair dryer (not shown), which is used to blow compressed air into the first guide groove 136 and the second guide groove 137. By blowing compressed air into the first guide groove 136 and the second guide groove 137, the residual liquid inside the guide member 132 can be blown off to avoid the residual liquid from affecting the next injection operation, thereby ensuring the injection accuracy. In addition, after the injection operation is completed, the catheter 91 is completely withdrawn from the first guide groove 136, and the injection needle 135 is retracted and a part of the injection needle 135 needs to be retained in the second straight tube section 137b, so as to avoid the problem that the injection needle 135 is too thin and is easy to bend during the movement along the second guide groove 137.

[0040] Specifically in this embodiment, the automatic liquid injection device 10 includes a first straightening mechanism 17 for straightening the catheter 91 of the part to be injected with liquid 90. The first straightening mechanism 17 includes a first straightening drive component 172 and two first clamping blocks 171. The two first clamping blocks 171 are located between the first material mounting seat 11 and the guide member 132. The first straightening drive component 172 is connected to the two first clamping blocks 171 to drive the two first clamping blocks 171 to approach each other and clamp the catheter 91, and can drive the two first clamping blocks 171 away from the first material mounting seat 11. It can be understood that after the part to be injected 90 is installed on the first material mounting seat 11, the two first clamping blocks 171 approach each other to jointly clamp the conduit 91 of the part to be injected 90, and gradually move away from the first material mounting seat 11 under the drive of the first straightening drive assembly 172, thereby achieving the straightening of the conduit 91, and then the injection needle 135 is inserted into the conduit 91 when the conduit 91 is relatively straight, and the smooth injection of the part to be injected 90 is achieved.

[0041] Specifically, the first straightening drive assembly 172 is a driving structure composed of a clamping cylinder 173 capable of driving the two first clamping blocks 171 to move closer to or farther from each other, a connecting plate 174 connected to the clamping cylinder 173, and a linear cylinder 175 connected to the connecting plate 174 and driving the clamping cylinder 173 to move between the first material mounting seat 11 and the guide member 132 through the connecting plate 174. Specifically, the automatic liquid injection device 10 includes a first base frame 19, the guide member 132 and the linear cylinder 175 are fixedly mounted on the first base frame 19, and the connecting plate 174 is slidably connected to the first base frame 19 through the cooperation of the slider and the slide rail, thereby ensuring the movement stability of the two first clamping blocks 171. Specifically, the first driving mechanism 15 is a driving structure composed of a motor 151, a slide rail 152, a slider 153, and a support seat 154; the first material mounting seat 11 is mounted on the support seat 154 so as to be able to move with the support seat 154; the support seat 154 is slidably connected to the first base frame 19, thereby ensuring the movement stability of the first material mounting seat 11. Specifically, the injection mechanism 13 includes an injection valve driving assembly 141, which is a driving structure composed of a motor 142, a slide rail 143, a slider 144, and a connecting plate 145; the injection valve body 134 is mounted on the connecting plate 145 to drive the injection needle 135 to move with the connecting plate 145.

[0042] Specifically, in this embodiment, the automatic injection device 10 includes a needle length measuring mechanism 21, which includes an electrode plate 211 and an electrode plate driving assembly 212. The electrode plate driving assembly 212 is connected to the electrode plate 211 to drive the electrode plate 211 to move; the electrode plate 211 is located on one side of the first guide groove 136, and the injection needle 135 can penetrate the first guide groove 136 and abut against the electrode plate 211. It can be understood that after the injection needle 135 is damaged or worn and replaced, the length of the injection needle 135 needs to be corrected to ensure that the depth of the injection needle 135 inserted into the catheter 91 remains unchanged during injection.

[0043] Specifically, the electrode plate 211 is driven to move by the electrode plate driving assembly 212, so that the electrode plate 211 is opposite to the first guide groove 136, so that the injection needle 135 can move from the second guide groove 137 to the first guide groove 136, and after passing through the first guide groove 136, it abuts against the electrode plate 211. Specifically, the electrode plate 211 is connected to the negative pole, and the injection needle 135 is connected to the positive pole. When the injection needle 135 abuts against the electrode plate 211 to realize current conduction, the length of the injection needle 135 can be obtained. It can be understood that, under the drive of the injection valve driving assembly 141, the injection valve body 134 and the injection needle 135 move. Thus, when the injection needle 135 and the electrode plate 211 are against each other to realize current conduction, the driving action of the injection valve driving assembly 141 stops. By recording the position of the slider in the injection valve driving assembly 141 on the slide rail and calculating the difference between the position and the length of the standard injection needle 135 corresponding to the standard position, the length of the injection needle 135 can be obtained. Thus, when the injection valve driving assembly 141 drives the injection needle 135 to move along the second guide groove 137, the injection needle 135 can be driven to move different distances to compensate for the change in its length, thereby ensuring that the injection needles 135 of different lengths can be inserted into the catheter 91 to a constant depth, and the injection member 90 to be injected is injected in a relatively consistent state, while ensuring the smooth operation of micro-injection and improving the injection accuracy.

[0044] Combination Figure 1 , Figure 5 , Figure 6 As shown, specifically in this embodiment, the automatic liquid injection device 10 includes a second material mounting seat 23 for mounting the liquid injection piece 90 and a tube depth detection mechanism 25 for detecting the tube depth of the liquid injection piece 90. The tube depth detection mechanism 25 includes a probe 251 and a second sensor 252. The probe 251 can move relative to the second material mounting seat 23 to extend into the inside of the liquid injection piece 90 mounted on the second material mounting seat 23, and trigger the second sensor 252 when it abuts against the liquid injection piece 90. By setting the tube depth detection mechanism 25, the liquid injection piece 90 can be detected before the liquid injection operation is performed. For the liquid injection piece 90 whose internal depth meets the standard, the liquid injection operation can be performed again. For the liquid injection piece 90 whose internal depth does not meet the standard, it can be judged as NG material and screened out.

[0045] Specifically, the pipe depth detection mechanism 25 includes a probe drive assembly 253, a mounting frame 254 and a fixed column 255, the second sensor 252 is mounted on the mounting frame 254, the probe 251 is fixedly mounted on the fixed column 255, the fixed column 255 is movably mounted on the mounting frame 254, the probe drive assembly 253 can drive the mounting frame 254, the fixed column 255, the probe 251 and the second sensor 252 to move a predetermined distance, and the second sensor 252 can be triggered when the fixed column 255 moves relative to the mounting frame 254. Under the driving action of the probe drive assembly 253, the mounting frame 254, the fixed column 255, the probe 251 and the second sensor 252 all move synchronously, and when the probe 251 abuts against the inside of the liquid injection part 90, the fixed column 255 moves relative to the mounting frame 254. Once the fixed column 255 moves relative to the mounting frame 254, the second sensor 252 is triggered. In this way, when the measuring needle driving assembly 253 drives the measuring needle 251 to move a predetermined distance, the second sensor 252 is triggered, and the part 90 to be injected is qualified material. When the measuring needle driving assembly 253 drives the measuring needle 251 to move less than the predetermined distance and the second sensor 252 is triggered, it means that the internal depth of the part 90 to be injected is insufficient and is NG material. Specifically, the second sensor 252 is a grating. The measuring needle driving assembly 253 is a driving structure composed of a motor 256, a slide rail 257, a slider 258, and a connecting plate 259. The mounting frame 254 is installed on the connecting plate 259 to drive the fixed column 255, the measuring needle 251 and the second sensor 252 to move with the connecting plate 259. Specifically, the automatic liquid injection device 10 includes an NG material box 27, which is used to collect NG materials.

[0046] Furthermore, a stepped movable passage (not shown) is provided through the mounting frame 254, and the fixed column 255 passes through the movable passage. The end of the fixed column 255 away from the measuring needle 251 has a cap end that can abut against the step in the movable passage, and the second sensor 252 is disposed adjacent to the cap end of the fixed column 255. When the measuring needle 251 abuts against the part to be injected 90, the measuring needle driving assembly 253 drives the mounting frame 254 to continue to move, and the fixed column 255 moves relative to the mounting frame 254 so that the cap end can touch the second sensor 252 and trigger the second sensor 252.

[0047] Specifically, the pipe depth detection mechanism 25 includes an elastic member 261, which is connected between the mounting frame 254 and the fixed column 255. The elastic member 261 can apply an elastic force toward the measuring needle 251 to the fixed column 255. When the measuring needle 251 is not in contact with the liquid-to-be-injected part 90, under the elastic action of the elastic member 261, the fixed column 255 can abut against the mounting frame 254 and keep the measuring needle 251 in a fixed position. Moreover, when the measuring needle 251 abuts against the liquid-to-be-injected part 90 and causes the fixed column 255 to move a certain distance relative to the mounting frame 254, if the measuring needle 251 and the liquid-to-be-injected part 90 are separated, the elastic force applied by the elastic member 261 to the fixed column 255 can also force the fixed column 255 to reset relative to the mounting frame 254 and maintain it in the initial fixed position. Specifically, the elastic member 261 is a spring sleeved on the fixed column 255.

[0048] Specifically, in this embodiment, the automatic liquid injection device 10 includes a second straightening mechanism 29 for straightening the conduit 91 of the part to be injected 90, and the second straightening mechanism 29 includes a second straightening drive assembly 292 and two second clamping blocks 291. The second straightening drive assembly 292 is connected to the two second clamping blocks 291 to drive the two second clamping blocks 291 to approach each other to clamp the conduit 91, and can drive the two second clamping blocks 291 away from the second material mounting seat 23. It can be understood that after the part to be injected 90 is installed on the second material mounting seat 23, the two second clamping blocks 291 approach each other to clamp the conduit 91 of the part to be injected 90 together, and gradually move away from the second material mounting seat 23 under the drive of the second straightening drive assembly 292, thereby achieving straightening of the conduit 91, and then allowing the measuring needle 251 to extend into the conduit 91 when the conduit 91 is relatively straight, and achieving smooth detection of the part to be injected 90. Specifically, the second straightening drive assembly 292 is a driving structure composed of a clamping cylinder 293 capable of driving the two second clamping blocks 291 to move closer to or away from each other, a connecting plate 294 connected to the clamping cylinder 293, and a linear cylinder 295 connected to the connecting plate 294 and driving the clamping cylinder 293 to move away from the second material mounting seat 23 through the connecting plate 294.

[0049] Specifically, the automatic liquid injection device 10 includes a second driving mechanism 31, which is connected to the second material mounting seat 23 to drive the second material mounting seat 23 to move, so that the second material mounting seat 23 moves from the loading position to the operating position opposite to the two second clamping blocks 291.

[0050] Specifically, in the present embodiment, the automatic liquid injection device 10 further includes a transport mechanism 33, which can transport the part to be injected 90 on the second material mounting seat 23 to the first material mounting seat 11. Specifically, the transport mechanism 33 is a six-axis robot. The transport mechanism 33 includes a mechanical arm 331 and a mechanical hand 332 connected to the mechanical arm 331, and the mechanical hand 332 has a suction nozzle, so that the part to be injected 90 can be transported by adsorption. Specifically, the first material mounting seat 11 and the second material mounting seat 23 are both provided with a receiving groove (not shown) for accommodating the part to be injected 90, and the bottom of the receiving groove is provided with an air hole, and an air nozzle connected to the air hole is provided to adsorb and lock the part to be injected 90 in the receiving groove, thereby realizing the installation of the part to be injected 90 on the first material mounting seat 11 and the second material mounting seat 23.

[0051] like Figure 1 As shown, specifically in this embodiment, the automatic liquid injection device 10 includes a frame 35, a first base frame 19 is erected on the frame 35, and the first material mounting seat 11, the first driving mechanism 15, the liquid injection mechanism 13, the first straightening mechanism 17, and the needle length measuring mechanism 21 are all installed on the first base frame 19. The automatic liquid injection device 10 includes a second base frame 37, the second base frame 37 is installed on the frame 35, and the second material mounting seat 23, the second driving mechanism 31, the pipe depth detection mechanism 25, and the second straightening mechanism 29 are all installed on the second frame 35. The first base frame 19 and the second base frame 37 are spaced apart, and the transport mechanism 33 is installed on the frame 35 and is located between the first base frame 19 and the second base frame 37.

[0052] Specifically, the automatic liquid injection device 10 includes a liquid reservoir 39 for storing the liquid to be injected, the liquid reservoir 39 is mounted on the frame 35, and is connected to the liquid conduit in the liquid injection mechanism 13 to supply the liquid to the liquid conduit. Further, the liquid reservoir 39 can detect the conductivity of the stored liquid. The automatic liquid injection device 10 includes a monitor (not shown), which is mounted on the liquid reservoir 39 to monitor the conductivity obtained by the liquid reservoir 39. Through the monitor, the conductivity of the liquid can be clearly understood, and when the conductivity is abnormal, it can be handled in time, thereby helping to keep the conductivity of the liquid stable to improve the accuracy of liquid injection.

[0053] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above 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.

[0054] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. An automatic liquid injection device, characterized in that: include: A first material mounting seat for mounting a part to be injected with liquid; and A liquid injection mechanism, the liquid injection mechanism comprising a liquid guide tube, a guide member and a liquid injection valve, the liquid injection valve comprising a liquid injection valve body connected to the liquid guide tube and a liquid injection needle connected to the liquid injection valve body, the guide member is provided with a first guide groove and a second guide groove connected to the first guide groove; The first material mounting seat can move relative to the guide member so that the conduit of the part to be injected moves along the first guide groove, the injection valve can move relative to the guide member so that the injection needle moves along the second guide groove and extends into the conduit, and the injection valve body can control the injection amount of the injection needle to the part to be injected; A needle length measuring mechanism, the needle length measuring mechanism comprising an electrode plate and an electrode plate driving assembly, the electrode plate driving assembly being connected to the electrode plate to drive the electrode plate to move; The electrode plate is located at one side of the first guiding groove, and the injection needle can penetrate the first guiding groove and abut against the electrode plate.

2. The automatic liquid injection device according to claim 1, characterized in that: The injection mechanism includes a first sensor, which is built into the guide member and corresponds to the connection between the first guide groove and the second guide groove; the automatic injection device includes a first driving mechanism connected to the first sensor, and the first driving mechanism is connected to the first material mounting seat to drive the first material mounting seat to move.

3. The automatic liquid injection device according to claim 1, characterized in that: The automatic liquid injection device includes a first straightening mechanism for straightening the catheter of the part to be injected, the first straightening mechanism includes a first straightening drive component and two first clamping blocks, the two first clamping blocks are located between the first material mounting seat and the guide member, the first straightening drive component is connected to the two first clamping blocks to drive the two first clamping blocks to approach each other to clamp the catheter, and can drive the two first clamping blocks away from the first material mounting seat.

4. The automatic liquid injection device according to claim 1, characterized in that: The first guide groove includes a first conical tube section and a first straight tube section, wherein the first straight tube section is located at one end of the first conical tube section close to the second guide groove; along the direction gradually approaching the second guide groove, the first conical tube section is in a conical shape with a gradually decreasing diameter.

5. The automatic liquid injection device according to claim 1, characterized in that: Also includes at least one of the following solutions: The injection mechanism includes a pressure stabilizer, which is installed on the catheter to stabilize the liquid pressure in the catheter; The liquid injection mechanism comprises a heating rod embedded in the guide member, and the heating rod is used to heat the guide member; The liquid injection mechanism includes a blower, and the blower is used to blow compressed air into the first guide groove and the second guide groove.

6. The automatic liquid injection device according to claim 1, characterized in that: The automatic liquid injection device includes a second material mounting seat for mounting the part to be injected and a tube depth detection mechanism for performing tube depth detection on the part to be injected. The tube depth detection mechanism includes a measuring needle and a second sensor. The measuring needle can move relative to the second material mounting seat to extend into the part to be injected mounted on the second material mounting seat, and trigger the second sensor when it abuts against the part to be injected.

7. The automatic liquid injection device according to claim 6, characterized in that: The automatic liquid injection device includes a second straightening mechanism for straightening the conduit of the part to be injected, the second straightening mechanism includes a second straightening drive assembly and two second clamping blocks, the second straightening drive assembly is connected to the two second clamping blocks to drive the two second clamping blocks to approach each other to clamp the conduit, and can drive the two second clamping blocks away from the second material mounting seat.

8. The automatic liquid injection device according to claim 6, characterized in that: The pipe depth detection mechanism includes a probe drive assembly, a mounting frame and a fixed column, the second sensor is mounted on the mounting frame, the probe is fixedly mounted on the fixed column, and the fixed column is movably mounted on the mounting frame. The probe drive assembly can drive the mounting frame, the fixed column, the probe and the second sensor to move a predetermined distance, and the second sensor can be triggered when the fixed column moves relative to the mounting frame.

9. The automatic liquid injection device according to claim 8, characterized in that: The pipe depth detection mechanism comprises an elastic member, wherein the elastic member is connected between the mounting frame and the fixing column, and the elastic member can apply an elastic force to the fixing column toward the measuring needle.

10. The automatic liquid injection device according to claim 6, characterized in that: The automatic liquid injection device further comprises a transport mechanism, which can transport the part to be injected with liquid on the second material mounting seat to the first material mounting seat.

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