Powder split charging head device

Abstract

The utility model discloses a powder split charging head device which comprises a base plate, a split charging assembly and a stirring assembly. A powder bin is fixedly installed on the lower side of the base plate, a powder discharging pipe is arranged at the bottom of the powder bin, and a powder nozzle is arranged at an outlet of the powder discharging pipe in a sleeving mode; the sub-packaging assembly comprises a sub-packaging motor, a sub-packaging transmission sleeve, an upper sub-packaging screw rod and a lower sub-packaging screw rod, the sub-packaging transmission sleeve is installed on the base plate, the upper sub-packaging screw rod is rotatably inserted into the sub-packaging transmission sleeve, the lower sub-packaging screw rod is coaxially and fixedly installed at the bottom end of the upper sub-packaging screw rod, a sub-packaging screw is arranged at the bottom end of the lower sub-packaging screw rod, and the sub-packaging transmission sleeve is installed on the base plate. The split charging motor is in transmission connection with the split charging upper screw rod; the stirring assembly comprises a stirring motor, a stirring transmission sleeve and a stirring rod, the stirring transmission sleeve is arranged on the periphery of the split charging upper screw in a sleeving mode, a gap is reserved between the stirring transmission sleeve and the split charging upper screw, the stirring transmission sleeve is rotatably connected with the base plate through a fixing nut, the stirring rod is fixed to the bottom end of the stirring transmission sleeve, and the split charging motor is in transmission connection with the stirring transmission sleeve. Through the arrangement, the subpackaging precision of the medicine powder can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of medicine dispensing equipment, in particular to a powder dispensing head device. Background Art

[0002] The powder-liquid double chamber bag is made through special technical control to make the same product with two chambers isolated from each other, separated by a virtual weld in the middle. One side is for traditional large infusions, and the other side is for solid sterile drugs. During use, you only need to squeeze gently to break through the barrier between the two preparation chambers to mix the liquid medicine and avoid contamination of the liquid medicine. In clinical use, it reduces the processes of liquid preparation, dilution, and mixing. It is easy and quick to use, which can greatly improve the work efficiency of clinical medical staff and reduce the chance of secondary infection. At the same time, because this type of product has the advantages of fast and convenient use, as well as being suitable for harsh environments, it is recognized as the safest, most reliable, and most convenient infusion product, and is one of the most promising development products in the pharmaceutical industry.

[0003] Since the powder filling of the powder-liquid double-chamber bag is carried out under aseptic conditions, it is necessary not only to ensure the accuracy of powder filling, but also to consider the cleanliness of the parts in contact with the powder, and to use a quick-install method to ensure the performance of offline sterilization and quick installation; the traditional form used before has the disadvantages of difficult cleaning, many dead corners, and difficult disassembly and assembly, which cannot meet the aseptic design requirements well; the filling screw and the transmission mechanism need to maintain a high coaxiality. If the coaxiality of the two is reduced, the filling screw will shake or vibrate when it rotates, which will increase equipment wear, shorten the service life, and produce wear particles, contaminating the powder.

[0004] Therefore, how to improve the powder packaging accuracy is a technical problem that those skilled in the art need to solve. Utility Model Content

[0005] The utility model aims to provide a powder dispensing head device, which can improve the powder dispensing accuracy.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A powder dispensing head device, comprising:

[0008] The base plate has a powder bin fixedly mounted on the lower side of the base plate. The powder bin is in a funnel-shaped structure as a whole. A lower powder pipe is arranged at the bottom of the powder bin, and a powder nozzle is arranged at the outlet of the lower powder pipe.

[0009] The sub-packaging component comprises a sub-packaging motor, a sub-packaging transmission sleeve, an upper sub-packaging screw and a lower sub-packaging screw. The sub-packaging transmission sleeve is a tubular structure, the sub-packaging transmission sleeve is installed on a base plate, the upper sub-packaging screw is rotatably inserted in the sub-packaging transmission sleeve, the lower sub-packaging screw is coaxially fixedly installed at the bottom end of the upper sub-packaging screw, the bottom end of the lower sub-packaging screw is provided with a sub-packaging spiral, and the sub-packaging spiral is located in the lower powder tube, and the sub-packaging motor is connected to the upper sub-packaging screw through a mounting top plate arranged at the top end of the sub-packaging transmission sleeve;

[0010] The stirring assembly includes a stirring motor, a stirring transmission sleeve and a stirring rod. The stirring transmission sleeve is a tubular structure. The stirring transmission sleeve is arranged on the outer periphery of the upper screw of the sub-packaging, and a gap is left between the two. The stirring transmission sleeve is rotatably connected to the base plate through a fixing nut. The stirring rod is fixedly installed at the bottom end of the stirring transmission sleeve. The stirring rod can stir along the inner wall of the powder bin and the periphery of the lower screw of the sub-packaging. The stirring motor is installed on the base plate and is located on the same side of the sub-packaging transmission sleeve as the sub-packaging motor. The sub-packaging motor is in driving connection with the stirring transmission sleeve.

[0011] The lower powder pipe, the dispensing transmission sleeve, the dispensing upper screw rod, the dispensing lower screw rod, the stirring transmission sleeve and the stirring rod are coaxially arranged.

[0012] Preferably, the interior of the sub-assembly transmission sleeve is rotatably connected to the sub-assembly upper screw through a first bearing and a second bearing. The first bearing is arranged at the top of the sub-assembly transmission sleeve, and the second bearing is arranged at the end of the sub-assembly transmission sleeve close to the base plate. The second bearing is fixed by the first bearing end cover.

[0013] Preferably, a groove is provided at the bottom end of the upper sub-assembly screw, and a boss matching the groove is provided at the bottom end of the lower sub-assembly screw. The groove and the boss are threadedly connected, and the end faces of the upper sub-assembly screw and the lower sub-assembly screw can fit together.

[0014] Preferably, a third bearing is provided between the sub-packaging lower screw and the stirring transmission sleeve, and the third bearing is fixed by the second bearing end cover.

[0015] Preferably, the stirring transmission sleeve is rotatably connected to the base plate via a fourth bearing, the fourth bearing is coaxially arranged with the stirring transmission sleeve, and the fourth bearing is fixed via a third bearing end cover.

[0016] Preferably, a first pulley is provided on the top of the sub-assembly upper screw rod, and the first pulley is connected to the output end of the sub-assembly motor through a first belt.

[0017] Preferably, a speed reducer is provided at the output end of the stirring motor, a second pulley is fixedly mounted on the upper end of the stirring transmission sleeve, and the second pulley is connected to the output end of the speed reducer via a second belt.

[0018] Preferably, sealing rings are provided between the powder bin and the base plate, between the third bearing and the second bearing end cover, and between the fourth bearing and the third bearing end cover, and the sealing rings are lip-shaped sealing rings, and a sealing gasket is provided at the connection between the lower powder tube and the powder bin.

[0019] Preferably, the powder bin is detachably connected to the base plate via three sets of buckles spaced 120° apart.

[0020] Preferably, a window is provided on the upper portion of the powder bin, and a sensor window is provided on the upper side of the substrate.

[0021] Compared with the above-mentioned background technology, the utility model provides a powder filling head device, comprising: a base plate, a filling component and a stirring component; the base plate, a powder bin is fixedly installed on the lower side of the base plate, the powder bin is in a funnel-shaped structure as a whole, a lower powder tube is provided at the bottom of the powder bin, and a powder nozzle is sleeved at the outlet of the lower powder tube; the filling component comprises a filling motor, a filling transmission sleeve, a filling upper screw and a filling lower screw, the filling transmission sleeve is in a tubular structure, the filling transmission sleeve is installed on the base plate, the filling upper screw can be rotatably inserted in the filling transmission sleeve, the filling lower screw is coaxially fixedly installed on the bottom end of the filling upper screw, the bottom end of the filling lower screw is provided with a filling spiral, and the filling spiral is located in the lower powder tube, the filling motor is connected to the filling transmission sleeve, and the filling screw is connected to the filling transmission sleeve. The stirring assembly comprises a stirring motor, a stirring transmission sleeve and a stirring rod. The stirring transmission sleeve is a tubular structure. The stirring transmission sleeve is arranged on the outer periphery of the upper screw of the packaging, and a gap is left between the two. The stirring transmission sleeve is rotatably connected to the base plate through a fixing nut. The stirring rod is fixedly installed at the bottom of the stirring transmission sleeve. The stirring rod can stir along the inner wall of the powder bin and the periphery of the lower screw of the packaging. The stirring motor is installed on the base plate and is located on the same side of the packaging transmission sleeve as the packaging motor. The packaging motor is connected to the stirring transmission sleeve in transmission. The lower powder pipe, the packaging transmission sleeve, the upper screw of the packaging, the lower screw of the packaging, the stirring transmission sleeve and the stirring rod are coaxially arranged.

[0022] Specifically, in the embodiment of the present application, a filling component and a stirring component are arranged on the same axis in the vertical direction. The filling component is driven by a filling motor to drive the filling upper screw to rotate, and then drive the filling lower screw to rotate. The filling spiral at the bottom end of the filling lower screw separates the powder from the powder bin from the lower powder tube. At the same time, the stirring component coaxially arranged with the filling component is driven by the stirring motor to drive the stirring transmission sleeve to rotate, thereby driving the stirring rod to rotate, so that the powder in the powder bin can be stirred while filling the powder to prevent the powder from forming a powder bridge; in the present application, the filling upper screw and the filling lower screw are installed inside the filling transmission sleeve, and the stirring transmission sleeve is arranged on the outer periphery of the filling upper screw but keeps a certain interval from it. In this way, while keeping the filling component and the stirring component coaxial, the two can also be kept to rotate independently, that is, the powder in the powder bin can be stirred while filling the powder; with such an arrangement, the powder filling head device can fill the powder with higher precision. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0024] Figure 1 A schematic diagram of the structure of a powder dispensing head device provided in an embodiment of the utility model;

[0025] Figure 2 for Figure 1 Another angle structural diagram;

[0026] Figure 3 This is a schematic diagram of the external structure of the powder dispensing head device provided in an embodiment of the utility model.

[0027] in:

[0028] 01-base plate, 02-powder bin, 03-lower powder tube, 04-powder nozzle, 05-packaging motor, 06-packaging transmission sleeve, 07-packaging upper screw, 08-packaging lower screw, 09-packaging spiral, 10-installation top plate, 11-stirring motor, 12-stirring transmission sleeve, 13-stirring rod, 14-fixing nut, 15-first bearing, 16-second bearing, 17-first bearing end cover, 18-third bearing, 19-second bearing end cover, 20-fourth bearing, 21-third bearing end cover, 22-first pulley, 23-first belt, 24-second pulley, 25-second belt, 26-sealing ring, 27-sealing pad, 28-buckle, 29-window, 30-sensor window, 31-reducer. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] In order to enable those skilled in the art to better understand the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0031] In the description of the present invention, it should be understood that the terms "upper", "lower", "bottom", "top", "left" and "right" etc. indicating directions or positional relationships are based on the directions 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 positions or elements referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation of the present invention.

[0032] The utility model aims to provide a powder dispensing head device, which can improve the powder dispensing accuracy.

[0033] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0034] See also Figures 1 to 3The present embodiment provides a powder filling head device, comprising: a base plate 01, a filling component and a stirring component; the base plate 01, a powder bin 02 is fixedly installed on the lower side of the base plate 01, the powder bin 02 is in a funnel-shaped structure as a whole, a lower powder tube 03 is provided at the bottom of the powder bin 02, and a powder nozzle 04 is sleeved at the outlet of the lower powder tube 03; the filling component comprises a filling motor 06, a filling transmission sleeve 06, a filling upper screw 06 and a filling lower screw 08, the filling transmission sleeve 06 is in a tubular structure, the filling transmission sleeve 06 is installed on the base plate 01, the filling upper screw 06 is rotatably inserted in the filling transmission sleeve 06, the filling lower screw 08 is coaxially fixedly installed at the bottom end of the filling upper screw 06, the bottom end of the filling lower screw 08 is provided with a filling spiral 09, and the filling spiral 09 is located in the lower powder tube 03, the filling motor 06 is arranged by the filling transmission sleeve The mounting top plate 10 at the top of 06 is transmission connected to the upper sub-packaging screw 06; the stirring assembly includes a stirring motor 11, a stirring transmission sleeve 12 and a stirring rod 13. The stirring transmission sleeve 12 is a tubular structure. The stirring transmission sleeve 12 is sleeved on the outer periphery of the upper sub-packaging screw 06, and a gap is left between the two. The stirring transmission sleeve 12 is rotatably connected to the base plate 01 through a fixing nut 14. The stirring rod 13 is fixedly mounted at the bottom of the stirring transmission sleeve 12. The stirring rod 13 can stir along the inner wall of the powder bin 02 and the periphery of the lower sub-packaging screw 08. The stirring motor 11 is mounted on the base plate 01 and is located on the same side of the sub-packaging transmission sleeve 06 as the sub-packaging motor 06. The sub-packaging motor 06 is transmission connected to the stirring transmission sleeve 12; the lower powder tube 03, the sub-packaging transmission sleeve 06, the upper sub-packaging screw 06, the lower sub-packaging screw 08, the stirring transmission sleeve 12 and the stirring rod 13 are coaxially arranged.

[0035] In this embodiment, a powder bin 02 for containing powder is provided directly below the base plate 01, and a packing assembly and a stirring assembly are vertically provided in the powder bin 02, wherein the packing assembly and the stirring assembly are coaxially arranged and can rotate independently of each other; wherein the packing transmission sleeve 06 is a tubular structure, and is vertically fixedly installed on the base plate 01, and both the packing upper screw 06 and the packing lower screw 08 are inserted on the axis of the packing transmission sleeve 06, and the stirring transmission sleeve 12 is also a tubular structure, and is used to connect the stirring motor 11 and the stirring rod 13, and the stirring transmission sleeve 12 It is sleeved on the outer periphery of the upper and lower sub-packaging screws 06 and 08, and is separated from them by a rotational gap to prevent the stirring transmission sleeve 12 and the upper and lower sub-packaging screws 06 from interfering with each other in rotation. The upper end of the stirring transmission sleeve 12 is provided with a thread, which is rotatably connected to the base plate 01 through a fixing nut 14. The lower end of the stirring transmission sleeve 12 is located inside the powder bin 02, and is fixedly connected to a stirring rod 13 that is close to the inner wall of the powder bin 02 and the periphery of the lower sub-packaging screw 08. In addition, the sub-packaging motor 06 and the stirring motor 11 in this embodiment are arranged above the base plate 01, and as shown in FIG. Figure 1 As shown, they are all arranged on the left side of the sub-packaging transmission sleeve 06.

[0036] In addition, if Figure 2As shown, the stirring rod 13 in the embodiment of the present application is an integral welded part, which is fixed to the boss at the lower end of the stirring transmission sleeve 12 by a butterfly bolt. The butterfly bolt is used to facilitate disassembly and cleaning; when the powder filling head device is in operation, the stirring rod 13 stirs along the inner wall of the powder bin 02 and the periphery of the filling lower screw 08 to prevent the occurrence of powder bridging; the lower end portion of the powder bin 02 is designed with a lower powder tube 03, which is connected to the powder bin 02 by a clamp; the lower part of the lower powder tube 03 is designed with a powder nozzle 04, the powder nozzle 04 can be a mesh structure or a large through-hole structure, and different powder nozzles 04 are selected according to different powders. The filling spiral 09 of the filling lower screw 08 can be in the shape of a single spiral or a double spiral, and the spiral spacing can also be changed. Different filling lower screws 08 are mainly used according to different needs of powders.

[0037] Specifically, in the embodiment of the present application, a filling component and a stirring component are arranged on the same axis in the vertical direction. The filling component is driven by the filling motor 06, which drives the filling upper screw 06 to rotate, and then drives the filling lower screw 08 to rotate. The filling spiral 09 at the bottom end of the filling lower screw 08 separates the powder from the powder bin 02 from the lower powder tube 03. At the same time, the stirring component coaxially arranged with the filling component is driven by the stirring motor 11, which drives the stirring transmission sleeve 12 to rotate, thereby driving the stirring rod 13 to rotate, so that the powder can be filled at the same time. The powder in the powder bin 02 is stirred to prevent the powder from forming a powder bridge; in the present application, the upper filling screw 06 and the lower filling screw 08 are installed inside the filling transmission sleeve, and the stirring transmission sleeve 12 is arranged on the outer periphery of the upper filling screw 06 but keeps a certain distance from it. In this way, while keeping the filling component and the stirring component coaxial, the two can also be kept to rotate independently, that is, the powder in the powder bin 02 can be stirred while filling the powder; with this arrangement, the powder filling head device can fill the powder with higher precision.

[0038] Preferably, the interior of the sub-assembly transmission sleeve 06 is rotatably connected to the sub-assembly upper screw 06 via a first bearing 15 and a second bearing 16. The first bearing 15 is disposed at the top of the sub-assembly transmission sleeve 06, and the second bearing 16 is disposed at the end of the sub-assembly transmission sleeve 06 close to the base plate 01. The second bearing 16 is fixed by a first bearing end cover 17.

[0039] like Figure 1As shown, the interior of the sub-assembly transmission sleeve 06 is rotatably connected to the sub-assembly upper screw 06 passing through it through two upper and lower bearings, wherein the first bearing 15 is installed at the top of the sub-assembly transmission sleeve 06, and the second bearing 16 is installed at the bottom of the sub-assembly transmission sleeve 06, and the first bearing 15 is fixed by installing the top plate 10, and the second bearing 16 is fixed by the first bearing 15 cover. It should be noted that a certain distance needs to be between the first bearing 15 and the second bearing 16; in this way, the coaxiality of the sub-assembly upper screw 06 can be greatly improved through two coaxially arranged bearings inside the sub-assembly transmission sleeve 06.

[0040] Preferably, the bottom end of the sub-assembly upper screw 06 is provided with a groove, and the bottom end of the sub-assembly lower screw 08 is provided with a boss matching the groove, the groove and the boss are threadedly connected, and the end faces of the sub-assembly upper screw 06 and the sub-assembly lower screw 08 can fit together.

[0041] like Figure 1 As shown, the sub-assembling upper screw 06 and the sub-assembling lower screw 08 are coaxially arranged, therefore, a groove is arranged at the bottom of the sub-assembling upper screw 06 in this embodiment, and a thread is arranged inside the groove, a boss matching the size of the groove is arranged at the top of the sub-assembling upper screw 06, and a thread is also arranged on the outer circumference of the boss, so that the sub-assembling upper screw 06 and the sub-assembling lower screw 08 can be connected with each other through the groove and the boss thread, and after the two are connected in place, the two cross-sections of the sub-assembling upper screw 06 and the sub-assembling lower screw 08 are tightly fitted; therefore, the sub-assembling upper screw 06 and the sub-assembling lower screw 08 are connected by double boss guide plus plane contact to avoid the gap between the sub-assembling lower screw 08 and the sub-assembling upper screw 06 affecting the coaxiality of the two.

[0042] Preferably, a third bearing 18 is provided between the sub-packaging lower screw 08 and the stirring transmission sleeve 12 , and the third bearing 18 is fixed by a second bearing end cover 19 .

[0043] It can be understood that, since the rotation speed of the lower filling screw 08 in the powder filling bin 02 is different from the rotation speed required for stirring the powder, the lower filling screw 08 and the stirring transmission sleeve 12 need to rotate independently of each other, and in order to ensure the filling accuracy, the two also need to maintain a high coaxiality. Therefore, the two are connected by setting a third bearing 18, and the third bearing 18 is fixed by the second bearing end cover 19. Figure 1 shown.

[0044] Preferably, the stirring transmission sleeve 12 is rotatably connected to the base plate 01 via a fourth bearing 20 , the fourth bearing 20 is coaxially arranged with the stirring transmission sleeve 12 , and the fourth bearing 20 is fixed via a third bearing end cover 21 .

[0045] Specifically, a bearing seat is provided at the position hole of the base plate 01 corresponding to the subassembly lower screw 08 , a fourth bearing 20 is provided inside the bearing seat, the stirring transmission sleeve 12 is installed in the fourth bearing 20 , and the fourth bearing 20 is fixed by a third bearing end cover 21 .

[0046] Preferably, a first pulley 22 is provided at the top of the sub-assembly upper screw rod 06 , and the first pulley 22 is connected to the output end of the sub-assembly motor 06 through a first belt 23 .

[0047] It can be understood that in the embodiment of the present application, the transmission method of the sub-assembly screw 06 and the sub-assembly motor 06 is specifically belt drive. Therefore, a first pulley 22 is provided on the top of the sub-assembly screw 06, and a small pulley is installed at the output end of the sub-assembly motor 06. The small pulley and the first pulley 22 are transmitted through a first belt 23.

[0048] Preferably, a reducer 31 is provided at the output end of the stirring motor 11 , and a second pulley 24 is fixedly mounted on the upper end of the stirring transmission sleeve 12 , and the second pulley 24 is connected to the output end of the reducer 31 through a second belt 25 .

[0049] Furthermore, the transmission mode of the stirring component is also belt drive, but because stirring the powder requires a larger torque, a reducer 31 is fixedly installed at the output end of the stirring motor 11, and a second pulley 24 is fixedly installed on the upper end of the stirring transmission sleeve 12. The second pulley 24 is also coaxial with the sub-assembly screw 06. The second pulley 24 is connected to the output end of the reducer 31 through a second belt 25. The reducer 31 can reduce the rotation speed of the stirring transmission sleeve 12 and increase its rotation torque to increase the power for stirring the powder.

[0050] Preferably, sealing rings 26 are provided between the powder bin 02 and the base plate 01 , between the third bearing 18 and the second bearing end cover 19 , and between the fourth bearing 20 and the third bearing end cover 21 , and the sealing rings 26 are lip-shaped sealing rings, and a sealing gasket 27 is provided at the connection between the lower powder tube 03 and the powder bin 02 .

[0051] In the present embodiment, powder bin 02 is filled with powdered powder, and therefore sealing rings 26 or sealing pads 27 are provided at each connection, so as to prevent external dust from entering powder bin 02, prevent the powder in powder bin 02 from entering each bearing, and prevent debris particles generated by the rotational friction of the remaining parts in the packaging transmission sleeve 06 and the stirring transmission sleeve 12 from entering the powder; among them, a lip-shaped sealing ring is preferably used in the present embodiment, which can increase the contact area and further improve the sealing effect.

[0052] Preferably, the powder bin 02 is detachably connected to the base plate 01 via three groups of buckles 28 spaced 120° apart.

[0053] like Figure 3As shown, the powder bin 02 is fixed by opening and closing three groups of buckles 28 spaced 120 degrees apart; this arrangement makes it very convenient to disassemble the powder bin 02 so as to clean the inside thereof. Of course, other connection methods can also be selected according to actual conditions, which are not specifically limited here, as long as they can achieve the above purpose.

[0054] Preferably, a window 29 is provided on the upper portion of the powder bin 02 , and a sensor window 30 is provided on the upper side of the substrate 01 .

[0055] like Figure 1 and Figure 3 As shown, in the present embodiment, a window 29 is provided at the upper position of the powder bin 02. To fit the powder bin 02, the window 29 is designed to be an arc-shaped structure. The material of the window 29 may be polycarbonate. The polycarbonate material is transparent and can be sterilized at high temperature without deformation. A window 29 sealing gasket 27 is designed between the window 29 and the powder bin 02 to reduce the possibility of external dust mixing into the powder. A window 29 fixing plate is designed outside the window 29 to fix the window 29 and make the window 29 more firm.

[0056] In addition, a sensor window 30 is provided on the upper side of the substrate 01. The material of the sensor window 30 may be polycarbonate. The polycarbonate material is transparent and can be sterilized at high temperature without deformation. A sensor window 30 sealing gasket 27 is designed between the sensor window 30 and the substrate 01 to reduce the possibility of external dust mixing into the powder. A sensor window 30 fixing plate is designed outside the sensor window 30 to fix the window 29 to make the window 29 more firm.

[0057] It should be noted that, in this specification, relational terms such as first and second are merely used to distinguish one entity from other entities, but do not necessarily require or imply any actual relationship or order between these entities.

[0058] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0059] The above is a detailed introduction to the embodiments provided by the utility model. This article uses specific examples to illustrate the principles and implementation methods of the utility model. The description of the above embodiments is only used to help understand the method and core ideas of the utility model. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the utility model, the utility model can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the utility model.

Claims

1. A powder dispensing head device, characterized in that: include: A base plate (01), a powder bin (02) is fixedly mounted on the lower side of the base plate (01), the powder bin (02) is in a funnel-shaped structure as a whole, a lower powder pipe (03) is provided at the bottom of the powder bin (02), and a powder nozzle (04) is sleeved at the outlet of the lower powder pipe (03); The sub-packaging component comprises a sub-packaging motor (05), a sub-packaging transmission sleeve (06), an upper sub-packaging screw (07) and a lower sub-packaging screw (08), wherein the sub-packaging transmission sleeve (06) is a tubular structure, the sub-packaging transmission sleeve (06) is mounted on the base plate (01), the upper sub-packaging screw (07) is rotatably inserted inside the sub-packaging transmission sleeve (06), the lower sub-packaging screw (08) is coaxially fixedly mounted on the bottom end of the upper sub-packaging screw (07), the bottom end of the lower sub-packaging screw (08) is provided with a sub-packaging spiral (09), and the sub-packaging spiral (09) is located inside the lower powder tube (03), and the sub-packaging motor (05) is transmission-connected to the upper sub-packaging screw (07) via a mounting top plate (10) arranged at the top end of the sub-packaging transmission sleeve (06); A stirring assembly comprises a stirring motor (11), a stirring transmission sleeve (12) and a stirring rod (13); the stirring transmission sleeve (12) is a tubular structure; the stirring transmission sleeve (12) is sleeved on the outer periphery of the upper sub-packaging screw (07) with a gap left therebetween; the stirring transmission sleeve (12) is rotatably connected to the base plate (01) via a fixing nut (14); the stirring rod (13) is fixedly mounted on the bottom end of the stirring transmission sleeve (12); the stirring rod (13) is capable of stirring along the inner wall of the powder bin (02) and the periphery of the lower sub-packaging screw (08); the stirring motor (11) is mounted on the base plate (01) and is located on the same side of the sub-packaging transmission sleeve (06) as the sub-packaging motor (05); the sub-packaging motor (05) is in driving connection with the stirring transmission sleeve (12); The lower powder tube (03), the sub-packaging transmission sleeve (06), the sub-packaging upper screw (07), the sub-packaging lower screw (08), the stirring transmission sleeve (12) and the stirring rod (13) are coaxially arranged.

2. The powder dispensing head device according to claim 1, characterized in that: The interior of the sub-assembly transmission sleeve (06) is rotatably connected to the sub-assembly upper screw rod (07) via a first bearing (15) and a second bearing (16); the first bearing (15) is disposed at the top end of the sub-assembly transmission sleeve (06); the second bearing (16) is disposed at the end of the sub-assembly transmission sleeve (06) close to the base plate (01); and the second bearing (16) is fixed via a first bearing end cover (17).

3. The powder dispensing head device according to claim 2, characterized in that: The bottom end of the sub-assembly upper screw rod (07) is provided with a groove, and the bottom end of the sub-assembly lower screw rod (08) is provided with a boss matched with the groove, the groove and the boss are threadedly connected, and the end faces of the sub-assembly upper screw rod (07) and the sub-assembly lower screw rod (08) can be fitted.

4. The powder dispensing head device according to claim 3, characterized in that: A third bearing (18) is provided between the sub-packaging lower screw (08) and the stirring transmission sleeve (12), and the third bearing (18) is fixed by a second bearing end cover (19).

5. The powder dispensing head device according to claim 4, characterized in that: The stirring transmission sleeve (12) is rotatably connected to the base plate (01) via a fourth bearing (20); the fourth bearing (20) is coaxially arranged with the stirring transmission sleeve (12), and the fourth bearing (20) is fixed via a third bearing end cover (21).

6. The powder dispensing head device according to claim 1, characterized in that: A first pulley (22) is provided at the top of the sub-assembly upper screw rod (07), and the first pulley (22) is connected to the output end of the sub-assembly motor (05) through a first belt (23).

7. The powder dispensing head device according to claim 1, characterized in that: The output end of the stirring motor (11) is provided with a reducer (31), and the upper end of the stirring transmission sleeve (12) is fixedly mounted with a second pulley (24), and the second pulley (24) is connected to the output end of the reducer via a second belt (25).

8. The powder dispensing head device according to claim 5, characterized in that: A sealing ring (26) is provided between the powder bin (02) and the base plate (01), between the third bearing (18) and the second bearing end cover (19), and between the fourth bearing (20) and the third bearing end cover (21), and the sealing ring (26) is a lip-shaped sealing ring. A sealing gasket (27) is provided at the connection between the lower powder tube (03) and the powder bin (02).

9. The powder dispensing head device according to claim 1, characterized in that: The powder bin (02) is detachably connected to the base plate (01) via three groups of buckles (28) spaced 120 degrees apart.

10. The powder dispensing head device according to claim 1, characterized in that: A viewing window (29) is provided on the upper part of the powder bin (02), and a sensor viewing window (30) is provided on the upper side of the substrate (01).

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