Down down filling equipment for down jackets

Abstract

The invention provides down jacket down feather filling equipment which comprises a down feather filling machine body and a down feather filling pipe installed on the down feather filling machine body, and the down feather filling pipe comprises a first pipe body, a second pipe body, a first shell, a plurality of extension arms, a rotating seat, a cleaning mechanism and a rotating driving mechanism. A rotating seat and a plurality of extension arms with air grooves are designed in a down filling pipe, compressed air introduced into a first mounting cavity by a cleaning mechanism can be blown to a first exhaust hole from an air passage and the air grooves, so that down blocked in the first exhaust hole can be blown out, the first exhaust hole is prevented from being blocked, and the service life of the down filling pipe is prolonged. The exhaust effect of the down filling pipe in the down filling process is effectively improved, and the down filling efficiency is improved. Meanwhile, the rotary driving mechanism is used for driving the rotary seat and the extension arms to rotate, so that down feather in some down jacket cut-parts can be effectively prevented from entering the first exhaust holes along with airflow even in the down feather filling process, and redundant air can be normally exhausted from the first exhaust holes between every two adjacent extension arms.

Description

Technical Field

[0001] The invention relates to the technical field of down filling equipment, and in particular to a down filling equipment for down jackets. Background Art

[0002] A down filling machine is a machine specially used for making down jackets. Its principle is to use the high-pressure airflow inside the machine to suck the down into the machine, and fill the down into the down jacket pieces to be filled through the filling tube.

[0003] Since the down is filled into the down jacket pieces through the filling tube along with the high-pressure air flow, the air in the down jacket pieces needs to be discharged in time during the filling process. Otherwise, if the excess air remains in the down jacket pieces, the down jacket pieces will be over-expanded, and the down cannot be filled into the down jacket pieces, thus affecting the filling effect.

[0004] Therefore, the down filling tube in the prior art is usually an outer tube arranged outside the inner tube, with exhaust holes on the outside, and an exhaust cavity is formed between the inner tube and the outer tube. When filling down, the operator covers the down jacket piece outside part of the outer tube, so that when filling down, the air in the down jacket piece will enter the exhaust cavity through the exhaust holes covered, and finally be discharged to the outside through the exhaust holes not covered.

[0005] However, during the filling process, the down filled in the down jacket pieces will flow to the exhaust holes along with the airflow, causing the exhaust holes to be blocked. If the exhaust holes cannot be unblocked in time, the air in the down jacket pieces will not be discharged smoothly during the subsequent filling operation, causing the down jacket pieces to over-expand, thus affecting the normal filling operation. The current unblocking method usually requires manual operation during shutdown, by disassembling the filling tube and then unblocking, which not only increases maintenance costs, but also affects production efficiency. Summary of the invention

[0006] In view of the defects in the prior art, the purpose of the present invention is to provide a down jacket down filling device to achieve automatic unblocking of the exhaust holes of the filling tube without stopping the machine, thereby ensuring the normal operation of the filling tube.

[0007] In order to achieve the above-mentioned object, the present invention provides a down filling device for down jackets, comprising a filling machine body and a filling tube installed on the filling machine body, the filling tube comprising a first tube body, with a feed inlet and a discharge outlet respectively provided at two ends; a second tube body, fixedly sleeved on the first tube body, and a first exhaust cavity is formed between the second tube body and the first tube body, and a plurality of first exhaust holes connected with the first exhaust cavity are opened on the side wall of the second tube body; a first shell body, fixedly sleeved on the first tube body, and a first installation cavity is formed between the first tube body and the first shell body, and the first shell body is connected to one end of the second tube body close to the feed inlet;

[0008] A plurality of extension arms are provided in the first exhaust cavity and are arranged in a circular array along the axis of the first tube body, the two ends of the extension arms are respectively close to the first installation cavity and the discharge port, the extension arm is provided with a first side wall which is in contact with the inner wall of the second tube body, and the first side wall is recessed to form an air groove; a rotating seat connected to the plurality of extension arms is rotatably sleeved outside the first tube body and located in the first installation cavity, the rotating seat separates the first installation cavity and the first exhaust cavity, and a plurality of air passages are provided on the rotating seat, the number of the air passages corresponds to the number of the extension arms, and the air passages are respectively connected to the first installation cavity and the air groove; a cleaning mechanism can introduce compressed air into the first installation cavity so that the compressed air is blown from the air passage and the air groove to the inner wall of the second tube body in turn; and a rotation driving mechanism is used to drive the rotating seat to rotate around the axis of the first tube body.

[0009] Preferably, it also includes a second shell, which is fixedly sleeved outside the first tube body and forms a second installation cavity between the second shell and the first tube body, and the second shell is connected to one end of the first shell close to the feed port; the rotating seat extends into the second installation cavity and separates the first installation cavity from the second installation cavity; the rotating drive mechanism includes a first gear, a second gear and a driving motor, the first gear and the second gear are both arranged in the second installation cavity, the first gear is fixedly sleeved outside the rotating seat, the second gear is rotatably arranged on the second shell and meshes with the first gear, and the driving motor is arranged on the second shell and connected to the second gear.

[0010] Preferably, it also includes a third tube body and a fourth tube body, the third tube body is fixedly sleeved outside the first tube body, and a second exhaust cavity is formed between the third tube body and the first tube body, the third tube body is connected to one end of the second shell body close to the feed port; a plurality of second exhaust holes are provided on the tube wall of the first tube body located in the second exhaust cavity, and the second exhaust cavity is connected to the first tube body through the second exhaust holes; the fourth tube body is arranged on the third tube body and connected to the second exhaust cavity, and a first valve body is provided on the fourth tube body.

[0011] Preferably, the outer side wall of the rotating seat located in the first installation cavity is provided with a first annular stopper and a second annular stopper, the first annular stopper separates the first installation cavity from the first exhaust cavity; the second annular stopper separates the first installation cavity into a first chamber and a second chamber, the second chamber is located between the first chamber and the first exhaust cavity, and the air passage is connected to the first chamber and the air groove respectively;

[0012] The first annular block is provided with a plurality of first feed holes, and the rotating seat is provided with a plurality of second feed holes, the first feed holes and the second feed holes correspond to the number of the airways, the first feed hole is arranged between two adjacent extension arms, and the second feed hole is located in the second chamber and communicated with the airway; a shielding mechanism is also included, and the shielding mechanism is used to synchronously shield or open the first feed hole and the second feed hole, and the cleaning mechanism can absorb the down in the first installation chamber and the first exhaust chamber.

[0013] Preferably, the shielding mechanism includes a sealing cylinder and an expansion and contraction component, the sealing cylinder is movably mounted outside the rotating seat and is located in the second chamber, and the outer wall of the sealing cylinder is provided with a third annular stopper; the expansion and contraction component has an expansion state and a contraction state, when the expansion and contraction component is in the expansion state, the expansion and contraction component causes the sealing cylinder to block the second feed hole, and causes the third annular stopper to block the first feed hole; when the expansion and contraction component is in the contraction state, the expansion and contraction component causes the sealing cylinder to open the second feed hole, and causes the third annular stopper to open the first feed hole.

[0014] Preferably, the expansion and contraction assembly includes an airbag, a fifth tube body, a first air pump and an elastic member, the airbag and the elastic member are both located between the second annular block and the third annular block, the fifth tube body is disposed on the first shell and is respectively connected to the airbag and the first air pump, the first air pump is used to drive the airbag to expand or contract; the elastic member is sleeved outside the sealing cylinder and is respectively connected to the second annular block and the third annular block, the elastic member is used to make the third annular block have a tendency to move toward the second annular block.

[0015] Preferably, the extension arm is provided with a second side wall on the side facing the first tube body, and the second side wall is in contact with the outer side wall of the first tube body; the end face of the rotating seat facing the first exhaust chamber is provided with multiple slopes, the number of the slopes corresponds to the number of the first feed holes, and the slopes are connected to the corresponding first feed holes.

[0016] Preferably, the cleaning mechanism includes a sixth tube body, a second air pump and a collecting piece, the sixth tube body is arranged on the first shell, the sixth tube body has a first interface, a second interface and a third interface, the first interface is connected to the first chamber, the second interface and the third interface are respectively connected to the second air pump, and the collecting piece is arranged between the third interface and the second air pump; a second valve body is arranged between the second interface and the second air pump, and a third valve body is arranged between the collecting piece and the second air pump.

[0017] Beneficial effects of the present invention:

[0018] The present invention discloses a down jacket down filling device, which is designed with a rotating seat and a plurality of extension arms with air grooves in the filling tube. The compressed air introduced into the first installation cavity by the cleaning mechanism will be blown from the airway and the air groove to the first exhaust hole, so that the down blocked in the first exhaust hole can be blown out, avoiding the blockage of the first exhaust hole, effectively improving the exhaust effect of the filling tube during the filling process, and there is no need to manually clear the blockage of the filling tube by stopping the machine, thereby improving the filling efficiency. At the same time, the rotating seat and the extension arm are driven to rotate by the rotary drive mechanism, and even during the filling process, the down in some down jacket pieces can be effectively prevented from entering the first exhaust hole with the air flow, and the excess air can be normally discharged from the first exhaust hole between two adjacent extension arms, which will not affect the normal discharge of the excess air in the down jacket pieces, thereby ensuring the normal operation of the filling tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following is a brief introduction to the drawings required for the specific embodiments or the description of the prior art. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn according to the actual scale.

[0020] Figure 1 A schematic structural diagram of a down filling tube provided in one embodiment of the present invention;

[0021] Figure 2 It is a schematic diagram of the structure of the first tube body, the second tube body, the first shell, the second shell, the third tube body and the fourth tube body;

[0022] Figure 3 for Figure 2 Local schematic diagram under the state;

[0023] Figure 4 It is a cross-sectional schematic diagram of one side of the discharge port;

[0024] Figure 5 It is a schematic diagram of the structure of the cooperation between the rotating seat and the extension arm;

[0025] Figure 6 for Figure 5 Local schematic diagram under the state;

[0026] Figure 7 It is a side view of the rotating seat;

[0027] Figure 8 for Figure 7 AA section diagram in;

[0028] Fig. 9 for Figure 7BB cross-section diagram in FIG.

[0029] Fig.10 for Figure 7 Schematic diagram of CC cross section in ;

[0030] Fig.11 for Figure 7 DD cross-section diagram in ;

[0031] Fig.12 It is a cross-sectional schematic diagram of the cooperation between the shielding mechanism and the rotating seat;

[0032] Fig.13 It is a structural schematic diagram of the plugging cylinder;

[0033] Fig.14 A cross-sectional schematic diagram of the blocking cylinder body when the first feed hole and the second feed hole are opened;

[0034] Fig.15 is a cross-sectional schematic diagram of the down filling tube;

[0035] Fig.16 for Fig.15 Local schematic diagram under the state;

[0036] Fig.17 This is a structural schematic diagram of the filling tube from another perspective;

[0037] Reference numerals:

[0038] 10. First tube body; 101. Feed port; 102. Discharge port; 103. Second exhaust hole; 20. Second tube body; 201. First exhaust hole; 30. First shell; 40. Extension arm; 401. Air groove; 50. Rotating seat; 501. Air passage; 502. First annular stopper; 503. Second annular stopper; 504. First feed hole; 505. Second feed hole; 506. Slope; 507. Fourth annular stopper; 60. Cleaning mechanism; 601. Sixth tube body; 70. Rotating seat Driving mechanism; 701, first gear; 702, second gear; 703, driving motor; 81, first exhaust chamber; 82, first installation chamber; 821, first chamber; 822, second chamber; 83, second installation chamber; 84, second exhaust chamber; 90, second shell; 100, third tube body; 110, fourth tube body; 120, shielding mechanism; 1201, blocking cylinder; 1202, third annular stopper; 1203, airbag; 1204, fifth tube body; 1205, elastic member. DETAILED DESCRIPTION

[0039] The following embodiments of the technical solution of the present invention are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and are therefore only used as examples, and cannot be used to limit the protection scope of the present invention.

[0040] It should be noted that, unless otherwise specified, the technical terms or scientific terms used in this application should have the common meanings understood by those skilled in the art to which the present invention belongs.

[0041] In the description of the present application, 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.

[0042] In addition, the terms "first", "second", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. In the description of the present invention, the meaning of "plurality" is more than two, unless otherwise clearly and specifically defined.

[0043] In this application, 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. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0044] In the present application, 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”, and “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”, and “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.

[0045] like Figure 1-17As shown, in one embodiment of the present invention, a down filling device for down jackets is provided, comprising a filling machine body (not shown in the drawings), and a filling tube installed on the filling machine body. The filling machine body is a prior art and will not be described in detail in this embodiment. The filling tube comprises a first tube body 10, a second tube body 20, a first shell 30, a plurality of extension arms 40, a rotating seat 50, a cleaning mechanism 60 and a rotating drive mechanism 70.

[0046] The first tube body 10 is provided with a feed port 101 and a discharge port 102 at both ends thereof. The second tube body 20 is fixedly sleeved outside the first tube body 10, and a first exhaust cavity 81 is formed between the second tube body 20 and the first tube body 10. A plurality of first exhaust holes 201 communicating with the first exhaust cavity 81 are provided on the side wall of the second tube body 20. The first shell 30 is fixedly sleeved outside the first tube body 10, and a first installation cavity 82 is formed between the first shell 30 and the first tube body 10. The first shell 30 is connected to one end of the second tube body 20 near the feed port 101.

[0047] Four extension arms 40 are disposed in the first exhaust cavity 81 and arranged in a circular array along the axis of the first tube body 10. The two ends of the extension arm 40 are respectively close to the first installation cavity 82 and the discharge port 102. The extension arm 40 is provided with a first side wall that fits with the inner wall of the second tube body 20. The first side wall is recessed to form an air groove 401.

[0048] The rotating seat 50 is connected to the four extension arms 40. The rotating seat 50 is rotatably sleeved outside the first tube body 10 and is located in the first installation cavity 82. The rotating seat 50 separates the first installation cavity 82 from the first exhaust cavity 81. The rotating seat 50 is provided with four air passages 501. The number of the air passages 501 corresponds to the number of the extension arms 40. The air passages 501 are connected to the first installation cavity 82 and the air groove 401 respectively. The cleaning mechanism 60 can pass compressed air into the first installation cavity 82, so that the compressed air is blown toward the inner side wall of the second tube body 20 from the air passages 501 and the air groove 401 in sequence. The rotation drive mechanism 70 is used to drive the rotating seat 50 to rotate around the axis of the first tube body 10.

[0049] When filling the down, the operator first sets the down jacket pieces to be filled outside the second tube body 20, and then the filling machine transports the weighed down from the feed port 101 to the first tube body 10 through the airflow, and transports it to the down jacket pieces to be filled from the discharge port 102. The excess air entering the down jacket pieces along with the down will enter the first exhaust cavity 81 from the first exhaust hole 201 wrapped by the down jacket pieces, and finally be discharged to the outside from the first exhaust hole 201 not wrapped by the down jacket pieces, thus avoiding the down jacket pieces from expanding too quickly during the filling process, which affects the filling efficiency.

[0050] In the above process, the down will also enter the first exhaust hole 201 along with the air flow, causing the first exhaust hole 201 to be blocked. At this time, the cleaning mechanism 60 can be activated to introduce compressed air into the first installation cavity 82. After the compressed air enters the first installation cavity 82, it will blow from each air channel 501 and each air groove 401 to the inner wall of the second tube body 20 in sequence. At the same time, the rotary drive mechanism 70 will drive the rotating seat 50 to rotate. In this way, when the extension arm 40 rotates along the axis of the first tube body 10, the compressed air blown out of the air groove 401 will blow the down blocked in the first exhaust hole 201 out of the second tube body 20, thereby avoiding the blockage of the first exhaust hole 201 and ensuring the exhaust effect of the first exhaust hole 201.

[0051] Since the first side wall of the extension arm 40 is attached to the inner side wall of the second tube body 20, the compressed air blown out of the air groove 401 can only be blown out of the second tube body 20 from the first exhaust hole 201, and basically will not be blown into the first exhaust cavity 81. Therefore, even in the process of filling, the down jacket piece is set outside part of the second tube body 20, and the rotating seat 50 drives the four extension arms 40 to rotate and blow out compressed air. The air entering the interior of the down jacket piece with the down can also enter the first exhaust cavity 81 from the first exhaust hole 201 between two adjacent extension arms 40, and finally be discharged to the outside from the first exhaust hole 201 not wrapped by the down jacket piece. In this way, the normal discharge of excess air in the down jacket piece will not be affected, and the filling effect of the down jacket piece is guaranteed. The rotating extension arm 40 will only blow out the down in the first exhaust hole 201 facing the air groove 401, so as not to affect the normal filling process.

[0052] The embodiment discloses a down jacket down filling device, which is designed with a rotating seat 50 and a plurality of extension arms 40 with air grooves 401 in the filling tube, and the compressed air introduced into the first installation cavity 82 by the cleaning mechanism 60 will blow from the airway 501 and the air groove 401 to the first exhaust hole 201, so that the down blocked in the first exhaust hole 201 can be blown out, avoiding the blockage of the first exhaust hole 201, effectively improving the exhaust effect of the filling tube during the filling process, and there is no need to manually dredge the filling tube by stopping the machine, thereby improving the filling efficiency. At the same time, the rotating seat 50 and the extension arm 40 are driven to rotate by the rotary drive mechanism 70, even in the filling process, it can effectively prevent the down in some down jacket cut pieces from entering the first exhaust hole 201 with the air flow, and the excess air can be normally discharged from the first exhaust hole 201 between two adjacent extension arms 40, which will not affect the normal discharge of the excess air in the down jacket cut pieces, thereby ensuring the normal operation of the filling tube.

[0053] In one embodiment, see Figure 3 and Fig.16The filling tube also includes a second shell 90, which is fixedly sleeved outside the first tube body 10 and forms a second installation cavity 83 between the second shell 90 and the first tube body 10. The second shell 90 is connected to one end of the first shell 30 near the feed port 101. The rotating seat 50 extends into the second installation cavity 83, and the outer wall of the rotating seat 50 is provided with a fourth annular stopper 507, which separates the first installation cavity 82 from the second installation cavity 83. The rotating drive mechanism 70 includes a first gear 701, a second gear 702 and a driving motor 703. The first gear 701 and the second gear 702 are both arranged in the second installation cavity 83. The first gear 701 is fixedly sleeved outside the rotating seat 50, and the second gear 702 is rotatably arranged on the second shell 90 and meshes with the first gear 701. The driving motor 703 adopts a micro reduction motor, and the driving motor 703 is arranged on the second shell 90 and connected to the second gear 702.

[0054] After the driving motor 703 is started, it will drive the first gear 701 to rotate through the second gear 702, thereby driving the rotating seat 50 and the four extension arms 40 to rotate around the axis of the first tube body 10. After the compressed air enters the first installation cavity 82, it will be blocked by the fourth annular block 507, so that it can basically only enter the four air grooves 401 from the four air passages 501, thereby improving the cleaning effect of the first exhaust hole 201.

[0055] In one embodiment, the filling tube further includes a third tube body 100 and a fourth tube body 110. The third tube body 100 is fixedly sleeved outside the first tube body 10, and a second exhaust cavity 84 is formed between the third tube body 10 and the first tube body 10. The third tube body 100 is connected to one end of the second shell 90 close to the feed port 101. A plurality of second exhaust holes 103 are provided on the tube wall of the first tube body 10 located in the second exhaust cavity 84, and the second exhaust cavity 84 is connected to the first tube body 10 through the second exhaust holes 103. The fourth tube body 110 is provided on the third tube body 100 and is connected to the second exhaust cavity 84. A first valve body (not shown in the drawings) is provided on the fourth tube body 110.

[0056] When filling small-sized down jacket pieces, the operator can first open the first valve body, and the down and airflow entering the first tube body 10, part of which will be discharged from the second exhaust hole 103 through the second exhaust cavity 84 and the fourth tube body 110 in turn. In this way, before the down and airflow enter the interior of the down jacket piece, part of the airflow can be discharged to the outside, thereby avoiding excessive expansion of the small-sized down jacket piece during filling, which affects the filling effect. Of course, since the second exhaust hole 103 is close to the feed port 101, and the flow rate of the down and airflow entering the first tube body 10 is relatively fast, the second exhaust hole 103 can only play a role in auxiliary exhaust, and most of the excess airflow still needs to be discharged to the outside through the first exhaust hole 201.

[0057] In one embodiment, see Figure 6 , Fig.12 and Fig.16 The outer wall of the rotating seat 50 located in the first installation cavity 82 is provided with a first annular stopper 502 and a second annular stopper 503. The first annular stopper 502 separates the first installation cavity 82 from the first exhaust cavity 81. The second annular stopper 503 separates the first installation cavity 82 into a first chamber 821 and a second chamber 822. The second chamber 822 is located between the first chamber 821 and the first exhaust cavity 81. The air passage 501 is connected to the first chamber 821 and the air groove 401 respectively.

[0058] The first annular stopper 502 is provided with four first feed holes 504, and the rotating seat 50 is provided with four second feed holes 505. The number of the first feed holes 504 and the second feed holes 505 corresponds to the number of the air passage 501. The first feed hole 504 is provided between two adjacent extension arms 40, and the second feed hole 505 is located in the second chamber 822 and communicates with the air passage 501. The filling tube further includes a shielding mechanism 120, which is used to synchronously shield or open the first feed hole 504 and the second feed hole 505. The cleaning mechanism 60 can absorb the down in the first installation cavity 82 and the first exhaust cavity 81.

[0059] During the filling process, excess air that enters the down jacket piece along with the down will enter the first exhaust cavity 81 through the first exhaust hole 201 wrapped by the down jacket piece. At the same time, the down will also enter the first exhaust hole 201 and the first exhaust cavity 81 along with the airflow, resulting in blockage of the first exhaust hole 201 and accumulation in the first exhaust cavity 81.

[0060] Therefore, by further improving the structure of the rotating seat 50, after the shielding mechanism 120 opens the first feed hole 504 and the second feed hole 505, the cleaning mechanism 60 is adjusted to have a suction function, so that the negative pressure will suck the down between the two adjacent extension arms 40 into the second chamber 822 through the first feed hole 504, and suck it into the air channel 501 from the second feed hole 505, together with the down accumulated in the air groove 401, and finally flow into the first chamber 821 through the air channel 501, and be discharged outside the first shell 30. In this way, the cleaning and recycling of the down in the first exhaust chamber 81, the first exhaust hole 201 and the air groove 401 is realized. At the same time, there is no need to disassemble the filling tube for cleaning, which saves time.

[0061] When filling with down, the cleaning mechanism 60 needs to have the function of introducing compressed air. At this time, the shielding mechanism 120 will shield the first feed hole 504 and the second feed hole 505, so that the compressed air can only flow from the first chamber 821 and the airway 501 to the air groove 401 in sequence, and will not enter the second chamber 822 and the space between the two adjacent extension arms 40 through the second feed hole 505, thereby ensuring the cleaning effect of the first exhaust hole 201 and the normal exhaust of the filling tube.

[0062] In one embodiment, see Figure 12-14 The shielding mechanism 120 includes a blocking cylinder 1201 and an expansion and contraction assembly. The blocking cylinder 1201 is movably sleeved outside the rotating seat 50 and located in the second chamber 822. The outer wall of the blocking cylinder 1201 is provided with a third annular stopper 1202. The expansion and contraction assembly has an expansion state and a contraction state. When the expansion and contraction assembly is in the expansion state, the expansion and contraction assembly enables the blocking cylinder 1201 to block the second feed hole 505, and enables the third annular stopper 1202 to block the first feed hole 504. When the expansion and contraction assembly is in the contraction state, the expansion and contraction assembly enables the blocking cylinder 1201 to open the second feed hole 505, and enables the third annular stopper 1202 to open the first feed hole 504.

[0063] Specifically, the expansion and contraction assembly includes an airbag 1203, a fifth tube 1204, a first air pump and an elastic member 1205. The airbag 1203 and the elastic member 1205 are both located between the second annular block 503 and the third annular block 1202. The airbag 1203 is annular in structure. The fifth tube 1204 is disposed on the first shell 30 and is respectively connected to the airbag 1203 and the first air pump. The first air pump is used to drive the airbag 1203 to expand or contract. The elastic member 1205 is sleeved outside the blocking cylinder 1201 and is respectively connected to the second annular block 503 and the third annular block 1202. The elastic member 1205 is used to make the third annular block 1202 have a tendency to move toward the second annular block 503.

[0064] When the airbag 1203 is in a contracted state, the blocking cylinder 1201 will open the second feed hole 505, and the third annular stopper 1202 will also open the first feed hole 504. When the first air pump passes gas into the airbag 1203, the airbag 1203 will expand after being inflated, and the expanded airbag 1203 will push the third annular stopper 1202, so that the blocking cylinder 1201 and the third annular stopper 1202 move toward the first annular stopper 502, and the elastic member 1205 will be further deformed.

[0065] When the third annular stopper 1202 abuts against the first annular stopper 502, the third annular stopper 1202 blocks the four first feed holes 504 on the first annular stopper 502, and the blocking cylinder 1201 blocks the four second feed holes 505 on the rotating seat 50. When the first air pump discharges the air in the airbag 1203, the elastic member 1205 drives the blocking cylinder 1201 to reset, thereby opening the first feed hole 504 and the second feed hole 505.

[0066] Therefore, when it is necessary to clean the down in the air groove 401 and the first exhaust cavity 81, the first air pump will discharge the gas in the airbag 1203 to shrink the airbag 1203, so that the sealing cylinder 1201 will open the first feed hole 504 and the second feed hole 505.

[0067] When filling with down, the cleaning mechanism 60 needs to have the function of introducing compressed air. At this time, the first air pump will inflate the airbag 1203, so that the sealing cylinder 1201 blocks the first feed hole 504 and the second feed hole 505, so that the compressed air can only flow from the first chamber 821 and the airway 501 to the air groove 401 in turn, and will not enter the second chamber 822 and the space between the two adjacent extension arms 40 through the second feed hole 505.

[0068] In one embodiment, a second side wall is provided on the side of the extension arm 40 facing the first tube body 10, and the second side wall is in contact with the outer side wall of the first tube body 10. A plurality of slopes 506 are provided on the end surface of the rotating seat 50 facing the first exhaust cavity 81, and the number of the slopes 506 corresponds to the number of the first feed holes 504, and the slopes 506 are connected to the corresponding first feed holes 504. This structural design helps the down between the two extension arms 40 to enter the first feed holes 504 along the slopes 506, thereby improving the cleaning effect of the down.

[0069] In one embodiment, the cleaning mechanism 60 includes a sixth tube body 601, a second air pump and a collecting member (not shown in the drawings), the sixth tube body 601 is arranged on the first housing 30, the sixth tube body 601 has a first interface, a second interface and a third interface, the first interface is communicated with the first chamber 821, the second interface and the third interface are respectively connected to the second air pump, and the collecting member is arranged between the third interface and the second air pump. A second valve body (not shown in the drawings) is arranged between the second interface and the second air pump, and a third valve body (not shown in the drawings) is arranged between the collecting member and the second air pump. When the second valve body is opened and the third valve body is closed, the second air pump will pass compressed air to the second interface. When the second valve body is closed and the third valve body is opened, the down in the first exhaust cavity 81 will be sucked into the collecting member.

[0070] In the description of the present invention, a large number of specific details are described. However, it is understood that embodiments of the present invention can be practiced without these specific details. In some instances, well-known methods, structures and techniques are not shown in detail so as not to obscure the understanding of this description.

[0071] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be included in the scope of the claims and specification of the present invention.

Claims

1. A down filling device for down jackets, comprising a filling machine body and a filling tube installed on the filling machine body, characterized in that: The filling tube comprises: The first tube body (10) is provided with a feed inlet (101) and a discharge outlet (102) at both ends thereof; A second tube body (20) is fixedly sleeved outside the first tube body (10), and a first exhaust cavity (81) is formed between the second tube body (20) and the first tube body (10); a plurality of first exhaust holes (201) communicating with the first exhaust cavity (81) are formed on the side wall of the second tube body (20); A first shell (30) is fixedly sleeved outside the first tube (10) and forms a first installation cavity (82) between the first shell (30) and the first tube (10); the first shell (30) is connected to an end of the second tube (20) close to the feed port (101); A plurality of extension arms (40) are disposed in the first exhaust cavity (81) and arranged in a circular array along the axis of the first tube body (10), with two ends of the extension arm (40) respectively close to the first installation cavity (82) and the discharge port (102), and the extension arm (40) is provided with a first side wall that is in contact with the inner side wall of the second tube body (20), and the first side wall is recessed to form an air groove (401); a rotating seat (50) connected to the plurality of extension arms (40), rotatably sleeved outside the first tube body (10) and located in the first installation cavity (82), the rotating seat (50) separating the first installation cavity (82) from the first exhaust cavity (81), the rotating seat (50) being provided with a plurality of air passages (501), the number of the air passages (501) corresponding to the number of the extension arms (40), the air passages (501) respectively communicating with the first installation cavity (82) and the air groove (401); A cleaning mechanism (60) is capable of introducing compressed air into the first installation cavity (82), so that the compressed air is blown toward the inner wall of the second tube body (20) from the air passage (501) and the air groove (401) in sequence; and The rotation drive mechanism (70) is used to drive the rotating seat (50) to rotate around the axis of the first tube body (10).

2. The down jacket down filling device according to claim 1, characterized in that: The invention also comprises a second shell (90), the second shell (90) being fixedly sleeved outside the first tube body (10), and forming a second installation cavity (83) between the second shell (90) and the first tube body (10), and the second shell (90) being connected to an end of the first shell (30) close to the feed port (101); the rotating seat (50) extending into the second installation cavity (83) and separating the first installation cavity (82) from the second installation cavity (83); The rotary drive mechanism (70) comprises a first gear (701), a second gear (702) and a drive motor (703); the first gear (701) and the second gear (702) are both arranged in the second mounting cavity (83); the first gear (701) is fixedly sleeved outside the rotary seat (50); the second gear (702) is rotatably arranged on the second shell (90) and meshes with the first gear (701); the drive motor (703) is arranged on the second shell (90) and connected to the second gear (702).

3. The down jacket down filling device according to claim 2, characterized in that: It also includes a third tube body (100) and a fourth tube body (110), wherein the third tube body (100) is fixedly sleeved outside the first tube body (10) and a second exhaust cavity (84) is formed between the third tube body (100) and the first tube body (10), and the third tube body (100) is connected to an end of the second shell (90) close to the feed port (101); A plurality of second exhaust holes (103) are provided on the tube wall of the first tube body (10) located in the second exhaust cavity (84); the second exhaust cavity (84) is communicated with the first tube body (10) through the second exhaust holes (103); the fourth tube body (110) is provided on the third tube body (100) and is communicated with the second exhaust cavity (84); a first valve body is provided on the fourth tube body (110).

4. The down jacket down filling device according to claim 1, characterized in that: The outer side wall of the rotating seat (50) located in the first installation cavity (82) is provided with a first annular stopper (502) and a second annular stopper (503), the first annular stopper (502) separates the first installation cavity (82) from the first exhaust cavity (81); the second annular stopper (503) separates the first installation cavity (82) into a first chamber (821) and a second chamber (822), the second chamber (822) is located between the first chamber (821) and the first exhaust cavity (81), and the air passage (501) is connected to the first chamber (821) and the air groove (401) respectively; The first annular stopper (502) is provided with a plurality of first feed holes (504), and the rotating seat (50) is provided with a plurality of second feed holes (505), the number of the first feed holes (504) and the second feed holes (505) corresponding to the number of the air passage (501), the first feed hole (504) being provided between two adjacent extension arms (40), and the second feed hole (505) being located in the second chamber (822) and communicating with the air passage (501); It also includes a shielding mechanism (120) for synchronously shielding or opening the first feed hole (504) and the second feed hole (505); the cleaning mechanism (60) can absorb the down in the first installation cavity (82) and the first exhaust cavity (81).

5. The down jacket down filling device according to claim 4, characterized in that: The shielding mechanism (120) comprises a blocking cylinder (1201) and an expansion and contraction assembly, the blocking cylinder (1201) is movably sleeved outside the rotating seat (50) and located in the second chamber (822), and the outer side wall of the blocking cylinder (1201) is provided with a third annular stopper (1202); The expansion and contraction assembly has an expansion state and a contraction state. When the expansion and contraction assembly is in the expansion state, the expansion and contraction assembly enables the blocking cylinder (1201) to block the second feed hole (505) and enables the third annular stopper (1202) to block the first feed hole (504); When the expansion and contraction assembly is in the contracted state, the expansion and contraction assembly enables the blocking cylinder (1201) to open the second feed hole (505) and enables the third annular stopper (1202) to open the first feed hole (504).

6. The down jacket down filling device according to claim 5, characterized in that: The expansion and contraction assembly comprises an airbag (1203), a fifth tube (1204), a first air pump and an elastic member (1205); the airbag (1203) and the elastic member (1205) are both located between the second annular stopper (503) and the third annular stopper (1202); the fifth tube (1204) is disposed on the first shell (30) and is respectively connected to the airbag (1203) and the first air pump; the first air pump is used to drive the airbag (1203) to expand or contract; The elastic member (1205) is sleeved outside the blocking cylinder (1201) and is respectively connected to the second annular stopper (503) and the third annular stopper (1202); the elastic member (1205) is used to make the third annular stopper (1202) tend to move toward the second annular stopper (503).

7. The down jacket down filling device according to claim 4, characterized in that: A second side wall is provided on a side of the extension arm (40) facing the first tube body (10), and the second side wall is in contact with the outer side wall of the first tube body (10); The end surface of the rotating seat (50) facing the first exhaust chamber (81) is provided with a plurality of slopes (506), the number of the slopes (506) corresponds to the number of the first feed holes (504), and the slopes (506) are connected to the corresponding first feed holes (504).

8. The down jacket down filling device according to claim 4, characterized in that: The cleaning mechanism (60) includes a sixth tube body (601), a second air pump and a collecting piece. The sixth tube body (601) is arranged on the first shell (30). The sixth tube body (601) has a first interface, a second interface and a third interface. The first interface is connected to the first chamber (821), and the second interface and the third interface are respectively connected to the second air pump. The collecting piece is arranged between the third interface and the second air pump; a second valve body is arranged between the second interface and the second air pump, and a third valve body is arranged between the collecting piece and the second air pump.

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