Metering box mechanism for strip packaging machine

Abstract

The utility model relates to the technical field of discharging of strip packaging machines, in particular to a metering box mechanism for a strip packaging machine. Comprising two vertical plates arranged at intervals in the longitudinal direction, a metering plate arranged between the two vertical plates, a driving assembly for driving the metering plate to do transverse reciprocating motion, a powder bin arranged above the metering plate, and a plurality of supporting plates and a plurality of small hoppers which are arranged below the metering plate, and a plurality of discharging openings are formed in the middle of the metering plate at intervals in the longitudinal direction; the supporting plates are arranged on the left side of the small hopper, the fixing frame is arranged under the supporting plates, the springs are installed in the middle of the top end of the fixing frame, the bearings are rotatably installed at the top end of the fixing frame, the front end and the rear end of the fixing frame are connected with the driving assembly, and the top ends of the springs are connected with the bottom ends of the supporting plates. The outer ring of the bearing is contacted with the bottom surface of the metering plate; the metering device is simple in structural design, the supporting plate is always flexibly attached to the bottom of the metering plate, and excessive abrasion between the supporting plate and the metering plate is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of material feeding of a strip packing machine, in particular to a metering box mechanism for a strip packing machine. Background Art

[0002] The strip bagging machine comprises a metering box 1, a silo 2, a support block 3 and a hopper 4. The bottom of the metering box 1 is provided with a plurality of material openings in the longitudinal direction. The silo 2 is arranged above the metering box 1, and its discharge port extends into the metering box 1. The support block 3 is arranged below the metering box 1 and blocks the material opening. The support block 3 is made of 304 stainless steel. A plurality of hoppers 4 are arranged on the right side of the support block 3. Figure 1 When working, the silo 2 is filled with granular materials, and the driving mechanism drives the metering box 1 to move left and right. When it moves into the silo 2, the material port is filled with materials and then moves toward the hopper 4. When it reaches the edge of the hopper 4, the support block 3 stops moving, and the metering box 1 continues to move. The support block 3 is separated from the material port, and the material in the material port falls into the hopper 4, completing the unloading.

[0003] Due to the relative movement between the support block 3 and the metering box 1, if the support block 3 contacts the bottom of the metering box 1, friction loss between the support block 3 and the metering box 1 will be caused, and there is a risk of foreign matter entering; if the support block 3 does not contact the bottom of the metering box 1 and there is a gap, the fine powder in the material will slide out of the gap and pollute the equipment and packaging materials. In order to avoid the above problems, it is necessary to repeatedly adjust the gap between the support block 3 and the bottom of the metering box 1, which not only requires high flatness of the support block 3, but also increases the difficulty of processing and manufacturing, and the installation and debugging process is cumbersome. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the deficiencies in the prior art and provide a metering box mechanism for a strip bagging machine, which has a simple structural design, a supporting plate that is always flexible and close to the bottom of a metering plate, and avoids excessive wear between the supporting plate and the metering plate.

[0005] The technical solution adopted by the utility model to solve its technical problems is: a metering box mechanism for a strip packing machine, including two vertical plates arranged at intervals along the longitudinal direction, a metering plate arranged between the two vertical plates, a driving assembly for driving the metering plate to reciprocate laterally, a powder bin arranged above the metering plate, and a plurality of support plates and a plurality of small hoppers arranged below the metering plate, a plurality of discharge ports being arranged at intervals along the longitudinal direction in the middle of the metering plate, the support plate being arranged on the left side of the small hopper, and also including a fixing frame arranged directly below the plurality of support plates, a plurality of springs installed in the middle of the top end of the fixing frame, and a plurality of bearings rotatably installed at the top end of the fixing frame, the front and rear ends of the fixing frame are respectively connected to the driving assembly, the top end of the spring is connected to the bottom end of the support plate, and the outer ring of the bearing contacts with the bottom surface of the metering plate.

[0006] Furthermore, it also includes a reinforcing rib, which is installed in the middle of the bottom end of the fixing frame.

[0007] The cam is an axially-coupled device for translating a plurality of guide shafts into and out of the guide shaft, and the plurality of guide shafts are coupled to the guide shaft and the plurality of guide shafts are coupled to the plurality of guide shafts.

[0008] Furthermore, the drive group includes a first rotating shaft, a bearing seat, a first connecting rod, a first fisheye connecting rod, a driving rod, a turntable, a reducer and a driving motor. The first rotating shaft is longitudinally arranged and located on the left side of the vertical plate. The bearing seat is respectively installed at both ends of the first rotating shaft. The bottom end of the first connecting rod is sleeved on the end of the first rotating shaft, and the top end thereof is connected to the left end of the first fisheye connecting rod. The right end of the first fisheye connecting rod is connected to the sliding sleeve at the left end of the guide shaft. The left end of the driving rod is hinged to the middle part of the first connecting rod, and the right end thereof is hinged to the rear end of the turntable. The turntable is rotatably installed in the middle part of the mounting seat, and the front end of the turntable is connected to the output end of the driving motor through the reducer.

[0009] Furthermore, it also includes a scraper assembly, which includes a second rotating shaft, a scraper, a connecting shaft, a second connecting rod, a second fisheye connecting rod, a third connecting rod, a fisheye joint and a cylinder. There are two second rotating shafts, which are symmetrically arranged on the left and right sides of the bottom of the powder bin, and both ends of the second rotating shaft are rotatably connected to the vertical plate respectively. The scraper is arranged between the powder bin and the second rotating shaft, and the scraper is connected to the second rotating shaft through the connecting shaft. The bottom end of the second connecting rod is mounted on the end of the second rotating shaft, and the top end thereof is connected to the end of the second fisheye connecting rod. The third connecting rod is arranged on the outer side of the front side vertical plate, the top end of the third connecting rod is connected to the end of one of the second rotating shafts, and the bottom end thereof is connected to the bearing end of the fisheye joint. The cylinder is hinged to the outer side of the vertical plate, and the driving end thereof is connected to the rod end of the fisheye joint.

[0010] Furthermore, it also includes an adjustment component, which includes an adjustment block, a screw nut, a screw and a power group. The right part of the metering plate is provided with a notch corresponding to the feeding port, and the adjustment block is slidably installed in the notch. The bottom end of the screw nut is connected to the top end of the adjustment block. The screw is rotatably installed on the right part of the metering plate, and its right end is transmission connected to the power group. The screw nut is threadedly sleeved on the screw.

[0011] Furthermore, the power group includes a bracket, a transmission shaft, an adjusting motor, a main bevel gear, a slave bevel gear, a main gear, a slave gear and a synchronous gear. The bracket is slidably installed on the top right part of the vertical plate, and the front and rear sides of the bottom end of the bracket are respectively connected with the sliding sleeve on the right end of the guide shaft through a support plate. The transmission shaft is rotatably installed in the bracket, the adjusting motor is vertically installed on the right end of the bracket, the main bevel gear is installed on the output end of the adjusting motor, and the slave bevel gear is installed on the right end of the transmission shaft. The main bevel gear is meshed with the slave bevel gear, the main gear is installed on the left end of the transmission shaft, and the slave gear is installed on the right end of the screw rod. The main gear is connected to the slave gear through the synchronous gear, and the synchronous gear is rotatably connected to the bracket.

[0012] The beneficial effects of the utility model are:

[0013] (1) The utility model uses a plurality of springs to press the support plate against the bottom of the metering plate, so that the support plate is always flexibly close to the material discharge port at the bottom of the metering plate, avoiding the situation where a gap is formed between the support plate and the metering plate and the material falls, ensuring the sealing performance, and combining the contact between the outer ring of the bearing and the bottom surface of the metering plate to form rolling friction, avoiding excessive wear between the support plate and the metering plate, thereby greatly reducing the generation of dust and material loss during the production process, and at the same time reducing the difficulty of manufacturing, installation and personnel adjustment;

[0014] (2) The utility model scrapes away the excess material accumulated above the discharge port by setting a scraping component, thereby ensuring the quantitative amount of material discharged from the discharge port;

[0015] (3) The utility model makes the opening size of the discharge port adjustable by adjusting the setting of the component, which is more practical and universal, and further ensures the quantitative amount of the discharge from the discharge port. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The utility model is further described below in conjunction with the accompanying drawings and implementation modes.

[0017] Figure 1 It is a schematic diagram of an existing metering box mechanism;

[0018] Figure 2 This is a schematic diagram of the structure of the utility model Figure 1 ;

[0019] Figure 3 This is a schematic diagram of the structure of the utility model Figure 2 ;

[0020] Figure 4 It is a schematic diagram of the support plate in the utility model;

[0021] Figure 5 It is a schematic diagram of the utility model without the bracket;

[0022] Figure 6 yes Figure 5 Enlarged view of part A in the middle;

[0023] Figure 7 It is a schematic diagram of the metering plate in the utility model;

[0024] Figure 8 It is a schematic diagram of the fixing frame in the utility model;

[0025] Fig. 9 It is a schematic diagram of the spring in the utility model;

[0026] Fig.10 middle Fig. 9 Enlarged view of middle part B;

[0027] Fig.11 It is a schematic diagram of the drive group in the utility model;

[0028] Fig.12 It is a schematic diagram of the turntable in the utility model;

[0029] Fig.13 It is a schematic diagram of the drive assembly in the utility model;

[0030] Fig.14 It is a schematic diagram of the tension spring in the utility model.

[0031] In the figure: 1, metering box; 2, silo; 3, support block; 4, hopper; 100, vertical plate; 110, waist hole; 200, metering plate; 210, feed port; 220, notch; 300, drive assembly; 310, guide shaft; 320, sliding sleeve; 330, connecting sleeve; 340, tension spring; 350, drive group; 351, first rotating shaft; 352, bearing seat; 353, first connecting rod; 354, first fisheye connecting rod; 355, driving rod; 356, turntable; 357, reducer; 358, driving motor; 359, mounting seat; 360, compression spring; 370, buffer sleeve; 400, powder silo; 500, support plate; 600, small hopper; 700, fixing frame; 800, Spring; 900, bearing; 1000, reinforcing rib; 1100, scraper assembly; 1110, second rotating shaft; 1120, scraper; 1130, connecting shaft; 1140, second connecting rod; 1150, second fisheye connecting rod; 1160, third connecting rod; 1170, fisheye joint; 1180, cylinder; 1200, adjustment assembly; 1210, adjustment block; 1220, screw nut; 1230, screw; 1240, power group; 1241, bracket; 1242, transmission shaft; 1243, adjustment motor; 1244, main bevel gear; 1245, slave bevel gear; 1246, main gear; 1247, slave gear; 1248, synchronous gear; 1249, support plate. DETAILED DESCRIPTION

[0032] The present invention is now further described in conjunction with the accompanying drawings. These drawings are simplified schematic diagrams that only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0033] Example 1

[0034] like Figure 2 , Figure 3 , Figure 7-10 As shown, a metering box mechanism for a strip packing machine includes two vertical plates 100 spaced apart in the longitudinal direction, a metering plate 200 disposed between the two vertical plates 100, a driving assembly 300 for driving the metering plate 200 to reciprocate laterally, a powder bin 400 disposed above the metering plate 200, and a plurality of supporting plates 500 and a plurality of small hoppers 600 disposed below the metering plate 200, a plurality of discharge ports 210 are spaced apart in the longitudinal direction in the middle of the metering plate 200, the supporting plate 500 is disposed on the left side of the small hopper 600, and also includes a fixing frame 700 disposed directly below the plurality of supporting plates 500, a plurality of springs 800 mounted in the middle of the top end of the fixing frame 700, and a plurality of bearings 900 rotatably mounted on the top end of the fixing frame 700, the front and rear ends of the fixing frame 700 are respectively connected to the driving assembly 300, the top end of the spring 800 is connected to the bottom end of the supporting plate 500, and the outer ring of the bearing 900 contacts the bottom surface of the metering plate 200. The support plate 500 is pressed against the bottom of the metering plate 200 by a plurality of springs 800, so that the support plate 500 is always flexible and close to the discharge port 210 at the bottom of the metering plate 200, avoiding the situation where a gap is formed between the support plate 500 and the metering plate 200 and materials fall, ensuring the sealing performance, and combining the contact between the outer ring of the bearing 900 and the bottom surface of the metering plate 200 to form rolling friction, avoiding excessive wear of the support plate 500 and the metering plate 200, thereby greatly reducing the generation of dust and material loss during the production process, and reducing the difficulty of manufacturing, installation and personnel adjustment. Specifically, the two vertical plates 100 are connected by a plurality of longitudinal axes; the powder bin 400 is installed on the left of the top of the two vertical plates 100 through a vertical frame; and a plurality of small hoppers 600 are installed on the vertical plates along the longitudinal direction.

[0035] like Figure 8 As shown, in order to prevent the fixing frame 700 from excessive deformation, a reinforcing rib 1000 is installed at the middle of the bottom end of the fixing frame 700 .

[0036] like Fig.13 and Fig.14As shown, the driving assembly 300 includes a guide shaft 310, a sleeve 320, a connecting sleeve 330, a tension spring 340, a driving group 350, a compression spring 360 and a buffer sleeve 370. There are two guide shafts 310, which are relatively installed on the inner side of the vertical plate 100. The sleeve 320 is slidably mounted on the guide shaft 310 and connected to the end of the metering plate 200. Two sleeves 320 are arranged on the guide shaft 310 and are arranged at intervals in the horizontal direction. The connecting sleeve 330 is sleeved on the guide shaft 310 and is arranged between the two sleeves 320. The bottom end of the connecting sleeve 330 is connected to the end of the fixing frame 700. The tension spring 340 is arranged on the inner side of the rear side vertical plate 100, the left end of the tension spring 340 is connected to the connecting sleeve 330, and the right end thereof is connected to the vertical plate 100, the driving group 350 is arranged on the left side of the vertical plate 100, and the driving end thereof is connected to the sliding sleeve 320 at the left end of the guide shaft 310, the compression spring 360 and the buffer sleeve 370 are both sleeved on the guide shaft 310, the right end of the compression spring 360 is connected to the connecting sleeve 330, and the left end thereof is connected to the sliding sleeve 320 at the left end of the guide shaft 310, and the buffer sleeve 370 is arranged between the connecting sleeve 330 and the sliding sleeve 320 at the right end of the guide shaft 310. When the metering plate 200 is located at the leftmost position, the driving group 350 drives the sliding sleeve 320 on the left end of the guide shaft 310 to move rightward along the guide shaft 310, thereby driving the metering plate 200 to move toward the small hopper 600. During this process, the tension spring 340 synchronously pulls the connecting sleeve 330 on the guide shaft 310 to move rightward along the guide shaft 310 toward the small hopper 600, thereby synchronously driving the fixing frame 700 to move toward the small hopper 600, thereby ensuring the follow-up movement of the supporting plate 500 and the metering plate 200. Specifically, both ends of the guide shaft 310 are connected to the vertical plate 100 through the shaft seat.

[0037] Through the coordinated arrangement of the compression spring 360 and the buffer sleeve 370, on the one hand, the follow-up movement of the support plate 500 during the movement of the metering plate 200 toward the small hopper 600 is further guaranteed; on the other hand, after the material in the discharge port 210 has fallen out, during the process of the metering plate 200 moving left and resetting, the compression spring 360 and the buffer sleeve 370 provide supporting force, so that the connecting sleeve 330 gradually fits tightly against the buffer sleeve 370, and gradually blocks the discharge port 210 and then moves into the powder bin 400 together with the metering plate 200.

[0038] like Figure 2 , Fig.11 and Fig.12As shown, the driving group 350 includes a first rotating shaft 351, a bearing seat 352, a first connecting rod 353, a first fisheye connecting rod 354, a driving rod 355, a turntable 356, a reducer 357 and a driving motor 358. The first rotating shaft 351 is longitudinally arranged and is located on the left side of the vertical plate 100. The bearing seat 352 is respectively installed at both ends of the first rotating shaft 351. The bottom end of the first connecting rod 353 is sleeved on the end of the first rotating shaft 351, and its top end is connected to the left end of the first fisheye connecting rod 354. The right end of the first fisheye connecting rod 354 is connected to the sliding sleeve 320 at the left end of the guide shaft 310. The left end of the driving rod 355 is hinged to the middle part of the first connecting rod 353, and its right end is hinged to the rear end of the turntable 356. The turntable 356 is rotatably installed in the middle part of the mounting seat 359. The front end of the turntable 356 is connected to the output end of the driving motor 358 through the reducer 357. During operation, the driving motor 358 drives the rotating disk 356 to rotate through the reducer 357, and the rotation of the rotating disk 356 drives the first connecting rod 353 to swing through the driving rod 355, and then drives the sliding sleeve 320 at the left end of the guide shaft 310 to move left and right along the guide shaft 310 through the first fisheye connecting rod 354. Specifically, the right end of the first fisheye connecting rod 354 is connected to the sliding sleeve 320 at the left end of the guide shaft 310 through a short shaft, and a waist hole 110 is opened at the left end of the front side vertical plate 100 for the short shaft to pass through.

[0039] Example 2

[0040] In this embodiment, a scraper assembly 1100 is additionally provided on the basis of the embodiment 1. The scraper assembly 1100 is provided to scrape away the excess material accumulated above the discharge port 210, thereby ensuring the quantitative amount of material discharged from the discharge port 210.

[0041] like Figure 2 , Fig.11 and Fig.13As shown, the scraper assembly 1100 includes a second rotating shaft 1110, a scraper 1120, a connecting shaft 1130, a second connecting rod 1140, a second fisheye connecting rod 1150, a third connecting rod 1160, a fisheye joint 1170 and a cylinder 1180. The second rotating shaft 1110 is two, symmetrically arranged on the left and right sides of the bottom of the powder bin 400, and the two ends of the second rotating shaft 1110 are respectively rotatably connected to the vertical plate 100. The scraper 1120 is arranged between the powder bin 400 and the second rotating shaft 1110. The scraper 1120 is connected to the second rotating shaft 1110 by the connecting shaft. 1130 is connected to the second rotating shaft 1110, the bottom end of the second connecting rod 1140 is sleeved on the end of the second rotating shaft 1110, and the top end thereof is connected to the end of the second fisheye connecting rod 1150, the third connecting rod 1160 is arranged on the outside of the front side vertical plate 100, the top end of the third connecting rod 1160 is connected to the end of one of the second rotating shafts 1110, and the bottom end thereof is connected to the bearing end of the fisheye joint 1170, the cylinder 1180 is hinged to the outside of the vertical plate 100, and the driving end thereof is connected to the rod end of the fisheye joint 1170. The arrangement of the second connecting rod 1140 and the second fisheye connecting rod 1150 realizes the synchronous rotation of the two second rotating shafts 1110. Specifically, there is a certain gap between the bottom end of the scraper 1120 and the metering plate 200.

[0042] When the metering plate 200 moves toward the small hopper 600, the cylinder 1180 drives the third connecting rod 1160 to swing through the fisheye joint 1170, thereby driving the second rotating shaft 1110 on the right to rotate. The second rotating shaft 1110 on the right synchronously drives the second rotating shaft 1110 on the left to rotate through the second connecting rod 1140 and the second fisheye connecting rod 1150, thereby realizing synchronous scraping of the two scrapers 1120.

[0043] During operation, the powder bin 400 is filled with granular materials, the driving assembly 300 drives the metering plate 200 to move horizontally, and after the discharge port 210 is filled with materials, the metering plate 200 moves toward the small hopper 600, and the scraper assembly 1100 scrapes off the excess materials above the metering plate 200. When the support plate 500 reaches the edge of the small hopper 600, it is blocked, and the support plate 500 stops moving right, and the metering plate 200 continues to move. At this time, the support plate 500 is separated from the discharge port 210, and the compression spring 360 is compressed. The material in the discharge port 210 falls into the small hopper 600, completing the discharge process.

[0044] Example 3

[0045] This embodiment adds an adjustment component 1200 on the basis of embodiment 1 or 2. The setting of the adjustment component 1200 makes the opening size of the discharge port 210 adjustable, which is more practical and versatile, and further ensures the quantitative amount of discharge from the discharge port 210.

[0046] like Figure 2 , Figure 3 , Figure 4-Figure 7As shown, the adjustment assembly 1200 includes an adjustment block 1210, a screw nut 1220, a screw 1230 and a power group 1240. A notch 220 corresponding to the feed opening 210 is provided at the right portion of the metering plate 200. The adjustment block 1210 is slidably installed in the notch 220. The bottom end of the screw nut 1220 is connected to the top end of the adjustment block 1210. The screw 1230 is rotatably installed on the right portion of the metering plate 200, and its right end is transmission-connected to the power group 1240. The screw nut 1220 is threadedly sleeved on the screw 1230. When the opening size of the feed opening 210 needs to be adjusted, the power group 1240 drives the screw 1230 to rotate, and the rotation of the drive screw 1230 is converted into the linear motion of the screw nut 1220, thereby driving the adjustment block 1210 to move horizontally in the notch 220, thereby realizing the adjustment of the opening size of the feed opening 210. It should be noted that the adjustment assembly 1200 corresponding to each feed opening 210 can adjust the opening size individually.

[0047] Specifically, the power group 1240 includes a bracket 1241, a transmission shaft 1242, an adjustment motor 1243, a main bevel gear 1244, a slave bevel gear 1245, a main gear 1246, a slave gear 1247 and a synchronous gear 1248. The bracket 1241 is slidably mounted on the top right part of the vertical plate 100, and the front and rear sides of the bottom end of the bracket 1241 are respectively connected to the sliding sleeve 320 on the right end of the guide shaft 310 through the support plate 1249. The transmission shaft 1242 is rotatably mounted in the bracket 1241, and the adjustment motor 124 3 is vertically installed at the right end of the bracket 1241, the main bevel gear 1244 is installed at the output end of the regulating motor 1243, the slave bevel gear 1245 is installed at the right end of the transmission shaft 1242, the main bevel gear 1244 is meshed with the slave bevel gear 1245, the main gear 1246 is installed at the left end of the transmission shaft 1242, the slave gear 1247 is installed at the right end of the screw rod 1230, the main gear 1246 is connected to the slave gear 1247 through the synchronous gear 1248, and the synchronous gear 1248 is rotatably connected to the bracket 1241.

[0048] During adjustment, the adjusting motor 1243 drives the transmission shaft 1242 to rotate, and the rotation of the transmission shaft 1242 drives the screw rod 1230 to rotate through the main gear 1246, the synchronous gear 1248 and the slave gear 1247 in sequence.

[0049] The above-mentioned implementation mode is only for illustrating the technical concept and features of the utility model, and its purpose is to enable people familiar with this technology to understand the content of the utility model and implement it. It cannot be used to limit the protection scope of the utility model. All equivalent changes or modifications made according to the spirit of the utility model should be included in the protection scope of the utility model.

Claims

1. A metering box mechanism for a strip packing machine, comprising two vertical plates (100) spaced apart in the longitudinal direction, a metering plate (200) disposed between the two vertical plates (100), a driving assembly (300) for driving the metering plate (200) to reciprocate laterally, a powder bin (400) disposed above the metering plate (200), and a plurality of supporting plates (500) and a plurality of small hoppers (600) disposed below the metering plate (200), wherein a plurality of discharge ports (210) are spaced apart in the longitudinal direction in the middle of the metering plate (200), and the supporting plate (500) is disposed on the left side of the small hopper (600), characterized in that: The invention also comprises a fixing frame (700) arranged directly below the plurality of supporting plates (500), a plurality of springs (800) installed in the middle of the top end of the fixing frame (700), and a plurality of bearings (900) rotatably installed on the top end of the fixing frame (700), wherein the front and rear ends of the fixing frame (700) are respectively connected to the driving assembly (300), the top end of the spring (800) is connected to the bottom end of the supporting plate (500), and the outer ring of the bearing (900) is in contact with the bottom surface of the metering plate (200).

2. The metering box mechanism for a stick packing machine according to claim 1, characterized in that: It also includes a reinforcing rib (1000), which is installed at the middle part of the bottom end of the fixing frame (700).

3. The metering box mechanism for a stick packing machine according to claim 1, characterized in that: The driving assembly (300) comprises a guide shaft (310), a sliding sleeve (320), a connecting sleeve (330), a tension spring (340), a driving group (350), a compression spring (360) and a buffer sleeve (370). The guide shafts (310) are two and are relatively mounted on the inner side of the vertical plate (100). The sliding sleeve (320) is slidably mounted on the guide shaft (310) and is connected to the end of the metering plate (200). The guide shaft (310) is provided with two sliding sleeves (320) which are arranged at intervals in the lateral direction. The connecting sleeve (330) is sleeved on the guide shaft (310) and is arranged between the two sliding sleeves (320). The bottom end of the connecting sleeve (330) is connected to the end of the fixing frame (700). The tension spring (340) is arranged on the inner side of the rear side vertical plate (100), the left end of the tension spring (340) is connected to the connecting sleeve (330), and the right end thereof is connected to the vertical plate (100), the driving group (350) is arranged on the left side of the vertical plate (100), and the driving end thereof is connected to the sliding sleeve (320) at the left end of the guide shaft (310), the compression spring (360) and the buffer sleeve (370) are both sleeved on the guide shaft (310), the right end of the compression spring (360) is connected to the connecting sleeve (330), and the left end thereof is connected to the sliding sleeve (320) at the left end of the guide shaft (310), and the buffer sleeve (370) is arranged between the connecting sleeve (330) and the sliding sleeve (320) at the right end of the guide shaft (310).

4. The metering box mechanism for a stick packing machine according to claim 3, characterized in that: The driving group (350) comprises a first rotating shaft (351), a bearing seat (352), a first connecting rod (353), a first fisheye connecting rod (354), a driving rod (355), a rotating disk (356), a reducer (357) and a driving motor (358). The first rotating shaft (351) is longitudinally arranged and located on the left side of the vertical plate (100). The bearing seat (352) is respectively installed at both ends of the first rotating shaft (351). The bottom end of the first connecting rod (353) is sleeved on the first rotating shaft (351). The end portion thereof is connected to the left end of the first fisheye connecting rod (354); the right end of the first fisheye connecting rod (354) is connected to the sliding sleeve (320) at the left end of the guide shaft (310); the left end of the driving rod (355) is hinged to the middle part of the first connecting rod (353); and the right end thereof is hinged to the rear end of the rotating disk (356); the rotating disk (356) is rotatably mounted in the middle part of the mounting seat (359); and the front end of the rotating disk (356) is connected to the output end of the driving motor (358) through a reducer (357).

5. The metering box mechanism for a stick packing machine according to claim 1 or 2, characterized in that: The invention also includes a scraper assembly (1100), wherein the scraper assembly (1100) includes a second rotating shaft (1110), a scraper (1120), a connecting shaft (1130), a second connecting rod (1140), a second fisheye connecting rod (1150), a third connecting rod (1160), a fisheye joint (1170) and a cylinder (1180). The second rotating shaft (1110) is in two pieces and is symmetrically arranged on the left and right sides of the bottom of the powder bin (400). The two ends of the second rotating shaft (1110) are respectively rotatably connected to the vertical plate (100). The scraper (1120) is arranged between the powder bin (400) and the second rotating shaft (1110). (1120) is connected to the second rotating shaft (1110) through a connecting shaft (1130), the bottom end of the second connecting rod (1140) is mounted on the end of the second rotating shaft (1110), and the top end thereof is connected to the end of the second fisheye connecting rod (1150), the third connecting rod (1160) is arranged on the outer side of the front side vertical plate (100), the top end of the third connecting rod (1160) is connected to the end of one of the second rotating shafts (1110), and the bottom end thereof is connected to the bearing end of the fisheye joint (1170), the cylinder (1180) is hinged to the outer side of the vertical plate (100), and the driving end thereof is connected to the rod end of the fisheye joint (1170).

6. The metering box mechanism for a stick packing machine according to claim 3, characterized in that: The invention also comprises an adjusting assembly (1200), wherein the adjusting assembly (1200) comprises an adjusting block (1210), a screw nut (1220), a screw (1230) and a power group (1240); a notch (220) corresponding to the feed opening (210) is provided at the right part of the metering plate (200); the adjusting block (1210) is slidably mounted in the notch (220); the bottom end of the screw nut (1220) is connected to the top end of the adjusting block (1210); the screw (1230) is rotatably mounted on the right part of the metering plate (200), and the right end thereof is transmission-connected to the power group (1240); the screw nut (1220) is threadedly sleeved on the screw (1230).

7. The metering box mechanism for a stick packing machine according to claim 6, characterized in that: The power group (1240) comprises a bracket (1241), a transmission shaft (1242), an adjustment motor (1243), a main bevel gear (1244), a slave bevel gear (1245), a main gear (1246), a slave gear (1247) and a synchronous gear (1248); the bracket (1241) is slidably mounted on the top right portion of the vertical plate (100); the front and rear sides of the bottom end of the bracket (1241) are respectively connected to the sliding sleeve (320) on the right end of the guide shaft (310) through a support plate (1249); the transmission shaft (1242) is rotatably mounted in the bracket (1241); the adjustment motor (1243) is vertically mounted on the vertical plate (100); The main bevel gear (1244) is mounted on the right end of the bracket (1241); the main bevel gear (1244) is mounted on the output end of the regulating motor (1243); the slave bevel gear (1245) is mounted on the right end of the transmission shaft (1242); the main bevel gear (1244) is meshed with the slave bevel gear (1245); the main gear (1246) is mounted on the left end of the transmission shaft (1242); the slave gear (1247) is mounted on the right end of the screw rod (1230); the main gear (1246) is connected to the slave gear (1247) through a synchronous gear (1248); and the synchronous gear (1248) is rotationally connected to the bracket (1241).

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