Filling device

Abstract

The utility model discloses a filling device, and belongs to the technical field of liquid preparation. Comprising a rack, a conveying structure, two guardrails, a plurality of filling heads and a bottle body fixing structure, the bottle body fixing structure comprises a positioning mechanism and a bottle body clamping mechanism, the bottle body clamping mechanism comprises two clamping plates, a material receiving groove, a clamping driving assembly and two driving units, and the two driving units are arranged side by side front and back; the driving unit comprises a sliding rod, a short sliding sleeve, a long sliding sleeve and a clamping air cylinder, the sliding rod is arranged in the left-right direction, the left end of the sliding rod is fixed to the rack, and the left end of a telescopic rod of the clamping air cylinder is fixedly connected with the right end of the sliding rod; the material receiving groove is formed in the front-back direction, located under the filling head and located above the bottle body, and the front end and the rear end of the material receiving groove are fixed to the two long sliding sleeves respectively; the two clamping air cylinders drive synchronously, the front end and the rear end of the clamping plate on the left side are fixed to the two short sliding sleeves respectively, the front end and the rear end of the clamping plate on the right side are fixed to the two long sliding sleeves respectively, and the clamping driving assembly is arranged on the rack.

Description

Technical Field

[0001] The utility model belongs to the technical field of liquid preparation, and particularly relates to a filling device. Background Art

[0002] A bactericide is a general term for agents used to control various pathogenic microorganisms. Bactericides are closely related to each person's life, and the filling of bactericidal drops is also a relatively important link in the processing process. The preparation process of bactericides usually includes processes such as mixing, filling, capping, labeling, and packaging. A filling device is used in the filling process.

[0003] For example, the patent with the application number CN202022211365.2 discloses a filling machine for the production of medical bactericidal drops, including a machine frame, a lifting mechanism, and a clamping mechanism. A liquid storage box is arranged at the top of the machine frame. A lifting mechanism is movably connected below the liquid storage box, and both sides of the lifting mechanism are movably connected to the top of the machine frame. Clamping mechanisms are arranged on both sides of the lifting mechanism. Fixed rods are arranged on both sides of the clamping mechanism, and the tops of the two fixed rods are fixedly connected to the top of the machine frame. A conveyor belt is arranged at the bottom of the clamping mechanism, and the conveyor belt penetrates through the machine frame. The clamping mechanism includes clamping cylinders and a second cross beam. There are two clamping cylinders, which are respectively located on both sides of the liquid storage box. Fixed rods are fixedly connected to the outside of the two clamping cylinders, and the tops of the fixed rods are fixedly connected to the top of the outer frame. The bottoms of the two clamping cylinders are fixedly connected to the second cross beam. The output ends of the two clamping cylinders are fixedly connected with telescopic rods. Adjusting columns are fixedly connected to the outside of the two telescopic rods. Connecting columns are fixedly connected to the inside of the two telescopic rods. Connecting blocks are fixedly connected to the ends of the two telescopic rods away from the clamping cylinders. Mounting rods are fixedly connected to the bottoms of the connecting columns and the connecting blocks. Clamping plates are fixedly connected to the tops of the two mounting rods.

[0004] That is, the existing filling device includes a machine frame, a conveying structure arranged at the lower right of the machine frame and along the front-rear direction, two guardrails on the left and right sides of the conveying structure, a plurality of filling heads arranged side by side in the front-rear direction at the upper right of the machine frame, and a bottle fixing structure above the conveying structure, etc. The plurality of filling heads are located directly above the conveying structure and can move up and down synchronously. The bottle fixing structure includes a positioning mechanism and a bottle clamping mechanism (equivalent to a clamping mechanism). The bottle clamping mechanism includes two clamping plates arranged oppositely and respectively on the left and right sides of the bottle.

[0005] When the applicant adopted the existing filling device, the following problems were found: at the end of filling, there was a small amount of liquid remaining on the filling head, and the small amount of liquid might drip onto the bottle body or the conveying structure. Dripping onto the conveying structure not only affects the service life of the equipment, but also may cause the bottles on it to slip, and can also contaminate the surface of the bottle body (poor customer experience). Dripping onto the bottle body will contaminate the surface of the bottle body and also flow from the bottle body to the equipment. Summary of the Invention

[0006] To solve the above problems, an embodiment of the present invention provides a filling device that uses a material receiving groove to receive the liquid dripping from the filling head, preventing the liquid from dripping onto the bottle body and the conveying structure. The material receiving groove moves synchronously with a clamping plate, simplifying the structure. The technical solution is as follows:

[0007] An embodiment of the present invention provides a filling device, which includes a frame 1, a conveying structure 2 arranged in the lower right part of the frame 1 along the front-rear direction, two guardrails 3 on the left and right sides of the conveying structure 2, a plurality of filling heads 4 arranged side by side in the upper right part of the frame 1 in the front-rear direction, and a bottle fixing structure above the conveying structure 2. The plurality of filling heads 4 are located directly above the conveying structure 2 and can move up and down synchronously. The bottle fixing structure includes a positioning mechanism and a bottle clamping mechanism. The bottle clamping mechanism includes two clamping plates 5 arranged oppositely and respectively on the left and right sides of the bottle body 6. The bottle clamping mechanism further includes a material receiving groove 7, a clamping driving component 8, and two driving units. The two driving units are arranged side by side in the front-rear direction and are both located above the bottle body 6. The driving unit includes a sliding rod 9, a short sliding sleeve 10 slidably arranged in the middle of the sliding rod 9, a long sliding sleeve 11 slidably arranged at the right end of the sliding rod 9, and a clamping cylinder 12 coaxially arranged at the right end of the long sliding sleeve 11. The sliding rod 9 is arranged in the left-right direction and its left end is fixed to the frame 1. The long sliding sleeve 11 extends to the right relative to the sliding rod 9. The left end of the telescopic rod of the clamping cylinder 12 is fixedly connected to the right end of the sliding rod 9. The material receiving groove 7 is arranged in the front-rear direction, located directly below the filling head 4, above the bottle body 6, and its front and rear ends are respectively fixed to the two long sliding sleeves 11. The two clamping cylinders 12 are driven synchronously. The front and rear ends of the left clamping plate 5 are respectively fixed to the two short sliding sleeves 10, and the front and rear ends of the right clamping plate 5 are respectively fixed to the two long sliding sleeves 11. The clamping driving component 8 is arranged on the frame 1 and is used to drive the left clamping plate 5 to move in the left-right direction. When the clamping cylinder 12 extends, the material receiving groove 7 is located directly below the filling head 4. When the clamping cylinder 12 contracts, the clamping driving component 8 drives the left clamping plate 5 to move to the right, and the two clamping plates 5 move towards each other to respectively clamp the left and right sides of the bottleneck, and the material receiving groove 7 moves to the left of the filling head 4.

[0008] Among them, the positioning mechanism in the embodiment of the present utility model is located at the frontmost and rearmost ends of a plurality of bottles 6 to be filled. It can move left and right. It is arranged on the guardrail 3 on the right side and is a pneumatic stop pin structure.

[0009] Among them, the guardrail 3 in the embodiment of the present utility model is located adjacent above the left end or the rear end of the conveying structure 2 and includes two guardrail rods arranged side by side up and down. The guardrail rods are arranged along the front-rear direction; both the clamping plate 5 and the driving unit are located above the guardrail rods.

[0010] Among them, both clamping plates 5 in the embodiment of the present utility model are arranged along the front-rear direction, and a plurality of clamping grooves are provided on the opposite sides thereof in cooperation. The plurality of clamping grooves are arranged side by side front and rear and correspondingly clamp a bottle 6. The clamping grooves are V-shaped grooves or trapezoidal grooves that cooperate with the bottleneck.

[0011] Specifically, the sliding rod 9 in the embodiment of the present utility model is a smooth round rod. Both the short sliding sleeve 10 and the long sliding sleeve 11 are circular sleeves that cooperate with the sliding rod 9. The long sliding sleeve 11 is slidably arranged at the right end of the sliding rod 9 and its length is greater than that of the short sliding sleeve 10. A first fixing seat 13 is provided on the short sliding sleeve 10. A second fixing seat 14 and a third fixing seat 15 are arranged side by side left and right on the long sliding sleeve 11. The front and rear ends of the left clamping plate 5 are respectively fixed to the bottoms of the two first fixing seats 13. The front and rear ends of the right clamping plate 5 are respectively fixed to the bottoms of the two third fixing seats 15. The front and rear ends of the material receiving groove 7 are respectively fixed to the two second fixing seats 14.

[0012] Preferably, the first fixing seat 13 in the embodiment of the present utility model is adjustably arranged left and right on the short sliding sleeve 10. The second fixing seat 14 and the third fixing seat 15 are adjustably arranged left and right on the long sliding sleeve 11. The first fixing seat 13, the second fixing seat 14, and the third fixing seat 15 are all rectangular blocks arranged along the front-rear direction. Circular holes that cooperate with the short sliding sleeve 10 or the long sliding sleeve 11 are provided thereon along the left-right direction. A slit that communicates with the circular hole is provided on the front side or the rear side thereof along the front-rear direction. A locking bolt is provided thereon at the position of the slit. The locking bolt is arranged vertically downward and passes through the slit downward.

[0013] Among them, the clamping drive assembly 8 in the embodiment of the present utility model includes two slide table cylinders arranged side by side front and rear and driven synchronously. The slide table cylinders are arranged along the left-right direction. Its left end is fixed to the frame 1. Its right end is located on the left side of the left guardrail 3 or fixed to the left guardrail 3. It is driven synchronously with the clamping cylinder 12. The left end of the lower side of the left clamping plate 5 is fixed to the slide seat of the slide table cylinder.

[0014] Among them, the material receiving groove 7 in the embodiment of the present utility model is a rectangular groove, the front end of which is located below the front of the filling head 4 at the front end, the rear end of which is located below the rear of the filling head 4 at the rear end, a hose is provided at the bottom thereof, and it is located above the clamping plate 5; the lower end of the hose is connected to the drain port below the conveying structure 2.

[0015] The beneficial effects brought by the technical solution provided by the embodiment of the present utility model are as follows: The embodiment of the present utility model provides a filling device, which uses a material receiving groove to receive the liquid dripping from the filling head, avoiding the liquid from dripping on the bottle body and the conveying structure. The material receiving groove moves synchronously with a clamping plate. The material receiving groove and the two clamping plates are all slidably arranged on a sliding rod, which simplifies the structure. In addition, the material receiving groove and the two clamping plates of this device can be adjusted to adapt to bottle bodies of different specifications. Description of the Drawings

[0016] Figure 1 is a partial structural schematic diagram of the filling device provided by the embodiment of the present utility model;

[0017] Figure 2 is a simple schematic diagram of the filling device provided by the embodiment of the present utility model when not filling;

[0018] Figure 3 is a simple schematic diagram of the filling device provided by the embodiment of the present utility model when filling;

[0019] Figure 4 is a structural schematic diagram of the combination of the sliding rod, the short sliding sleeve and the first fixing seat.

[0020] In the figure: 1 frame, 2 conveying structure, 3 guardrail, 4 filling head, 5 clamping plate, 6 bottle body, 7 material receiving groove, 8 clamping driving assembly, 9 sliding rod, 10 short sliding sleeve, 11 long sliding sleeve, 12 clamping cylinder, 13 first fixing seat, 14 second fixing seat, 15 third fixing seat. Detailed Embodiments

[0021] In order to make the purpose, technical solutions and advantages of the present utility model clearer, the present utility model will be further described in detail below with reference to the drawings.

[0022] Embodiment 1

[0023] See Figures 1-4, Embodiment 1 provides a filling device, which includes a frame 1, a conveying structure 2, two guardrails 3, a bottle fixing structure, and multiple filling heads 4, etc. The frame 1 is arranged along the front-back direction. The conveying structure 2 is arranged along the front-back direction, and is located at the lower right side of the frame 1. Specifically, it can be a chain plate conveying structure. Multiple filling heads 4 are arranged side by side in the front-back direction, located at the upper right side of the frame 1, directly above the conveying structure 2, and can move up and down synchronously (arranged on the same lifting frame). A bottle 6 is correspondingly arranged directly below each filling head 4 (positioned and fixed by the bottle fixing structure). Two guardrails 3 are arranged side by side in the left-right direction, respectively located on the adjacent outer sides of the left and right sides of the bottle 6, respectively located above the left and right ends of the conveying structure 2, and arranged along the front-back direction. Specifically, the guardrail 3 includes two guardrail bars arranged side by side up and down, and the guardrail bars are arranged along the front-back direction. The bottle fixing structure is used to position and fix the bottle 6. Multiple bottles 6 to be filled are arranged side by side in the front-back direction and are closely attached to each other and are located directly below the corresponding filling heads 4.

[0024] Among them, the bottle fixing structure includes a positioning mechanism, a bottle clamping mechanism, etc. The positioning mechanism is used to position the bottle 6 at the rear end, so that each filling head 4 corresponds to a bottle 6. The positioning mechanism is located at the frontmost end (to prevent subsequent bottles 6 from entering) and the rearmost end of the multiple bottles 6 to be filled. It can move in the left-right direction, is arranged on the right guardrail 3, and is a pneumatic baffle structure. Specifically, when the pneumatic baffle structure extends, the bottle 6 cannot pass through; when the pneumatic baffle structure contracts to the right side of the bottle 6, the bottle 6 can pass through.

[0025] Among them, the bottle clamping mechanism includes two clamping plates 5, a receiving groove 7, a clamping drive assembly 8, and two drive units, etc. The two clamping plates 5 are arranged opposite to each other, respectively located on the left and right sides of the bottleneck of the bottle 6. Multiple clamping grooves are provided on their opposite sides for cooperation. They can move towards or away from each other and are both located above the guardrail bars. The clamping plates 5 are arranged along the front-back direction. Multiple clamping grooves are arranged side by side in the front-back direction, corresponding to clamp a bottle 6, and are arranged at equal intervals. The clamping grooves (conventional structure) are V-shaped grooves or trapezoidal grooves, etc. that cooperate with the bottleneck. The clamping drive assembly 8 is used to drive the left clamping plate 5 to move in the left-right direction, and the two drive units are used to synchronously drive the receiving groove 7 and the right clamping plate 5 to move in the left-right direction. The two drive units are arranged side by side in the front-back direction, both located above the bottle 6, both located above the guardrail bars, and are synchronously driven. They are respectively located at the front and rear ends of the frame 1. The front drive unit is located in front of the clamping plate 5, and the rear drive unit is located behind the clamping plate 5.

[0026] Among them, the driving unit includes a slide bar 9, a short sliding sleeve 10, a long sliding sleeve 11, a clamping cylinder 12, etc. The slide bar 9 is arranged in the left-right direction, and its left end is fixed on the frame 1, and it is specifically a smooth round bar. Both the short sliding sleeve 10 and the long sliding sleeve 11 are circular sleeves that cooperate with the slide bar 9, and they are both arranged in the left-right direction. The short sliding sleeve 10 is slidably arranged in the middle of the slide bar 9. The left end of the long sliding sleeve 11 is slidably arranged at the right end of the slide bar 9, and it extends to the right relative to the slide bar 9, and its length is greater than that of the short sliding sleeve 10. The clamping cylinder 12 is coaxially arranged at the right end of the long sliding sleeve 11, its telescopic rod is located inside the long sliding sleeve 11, the left end of its telescopic rod is fixedly connected to the right end of the slide bar 9, and it is used to drive the long sliding sleeve 11 to move in the left-right direction. The front and rear ends of the clamping plate 5 on the left side are respectively fixed on the two short sliding sleeves 10, and the front and rear ends of the clamping plate 5 on the right side are respectively fixed on the two long sliding sleeves 11 (specifically, the middle part). The material receiving groove 7 is arranged in the front-rear direction, it is located directly below the filling head 4, it is located above the bottle body 6, its front and rear ends are respectively fixed on the two long sliding sleeves 11 (specifically, the left end), it is a rectangular groove, its front end is located below the front filling head 4, its rear end is located below the rear filling head 4, and its bottom is higher than the clamping plate 5. The clamping driving assembly 8 is arranged on the frame 1, and it is used to drive the clamping plate 5 on the left side to move in the left-right direction. It includes two slide table cylinders arranged side by side in the front-rear direction and driven synchronously. The slide table cylinder is arranged in the left-right direction, its left end is fixed on the frame 1, its right end is located on the left side of the left guardrail 3 or fixed on the left guardrail 3, and it is driven synchronously with the clamping cylinder 12. The left end of the lower side of the clamping plate 5 on the left side is fixed on the slide seat of the slide table cylinder.

[0027] When the clamping cylinder 12 extends, the material receiving groove 7 is located directly below the filling head 4, the two clamping plates 5 do not clamp the bottle body 6, and the positioning mechanism contracts. When the clamping cylinder 12 contracts (for filling), the positioning mechanism extends, the clamping driving assembly 8 drives the clamping plate 5 on the left side to move to the right, and the two clamping plates 5 move towards each other to respectively clamp the left and right sides of the bottleneck, and the material receiving groove 7 moves to the left side of the filling head 4 (the filling head 4 descends to insert into the bottle body 6).

[0028] Specifically, a first fixed seat 13 is provided (fixedly or arranged with left-right adjustment) on the short sliding sleeve 10 in the embodiment of the present invention, a second fixed seat 14 and a third fixed seat 15 are arranged side by side in the left-right direction (fixedly or arranged with left-right adjustment) on the long sliding sleeve 11, and the second fixed seat 14 is located on the left side of the third fixed seat 15. The front and rear ends of the clamping plate 5 on the left side are respectively fixed at the bottoms of the two first fixed seats 13, the front and rear ends of the clamping plate 5 on the right side are respectively fixed at the bottoms of the two third fixed seats 15, and the front and rear ends of the material receiving groove 7 are respectively fixed on the two second fixed seats 14.

[0029] Among them, a hose is provided at the bottom of the material receiving groove 7 in the embodiment of the present utility model (avoiding each structure and the bottle body 6) to drain the liquid externally, and it is located above the clamping plate 5. The lower end of the hose is connected to the drain port below the conveying structure 2.

[0030] Embodiment 2

[0031] Refer to Figure 1 , Embodiment 2 provides a filling device, whose structure is basically the same as that of Embodiment 1, and the difference lies in: in order to adapt to bottle bodies 6 of different sizes. The first fixed seat 13 in this embodiment is arranged on the short sliding sleeve 10 in a left-right adjustable manner, and the second fixed seat 14 and the third fixed seat 15 are arranged on the long sliding sleeve 11 in a left-right adjustable manner. The first fixed seat 13, the second fixed seat 14 and the third fixed seat 15 are all rectangular blocks arranged along the front-rear direction, and circular holes (with clearance fit with the corresponding sliding sleeve) for cooperating with the short sliding sleeve 10 (for the first fixed seat 13) or the long sliding sleeve 11 (for the second fixed seat 14 and the third fixed seat 14) are arranged on them along the left-right direction. A slit (with a width of 1 - 3 mm) communicating with the circular hole is arranged on the front side or the rear side of it along the front-rear direction, and a locking bolt is arranged at the slit. The short sliding sleeve 10 and the long sliding sleeve 11 are located in the corresponding circular holes and are locked by the locking bolt. The locking bolt is arranged vertically downward, its head is located on the upper side of the corresponding fixed seat, and it passes through the slit downward.

[0032] Embodiment 3

[0033] Refer to Figure 1 , Embodiment 3 provides a filling device, whose structure is basically the same as that of Embodiment 1, and the difference lies in: six clamping grooves are provided on the clamping plate 5 in this embodiment, and correspondingly, the number of filling heads 4 is six. The clamping groove is an isosceles trapezoidal groove with an opening towards the bottle body 6.

[0034] Among them, the "first", "second" and "third" in the embodiments of the present utility model only play a role in distinction and have no other special meanings.

[0035] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A filling device, comprising a frame (1), a conveying structure (2) arranged along the front-rear direction at the lower right side of the frame (1), two guardrails (3) on the left and right sides of the conveying structure (2), a plurality of filling heads (4) arranged side by side in the front-rear direction at the upper right side of the frame (1), and a bottle fixing structure above the conveying structure (2). The plurality of filling heads (4) are located directly above the conveying structure (2) and can move up and down synchronously. The bottle fixing structure includes a positioning mechanism and a bottle clamping mechanism. The bottle clamping mechanism includes two clamping plates (5) arranged oppositely and respectively located on the left and right sides of the bottle (6); characterized in that, The bottle clamping mechanism further includes a material receiving groove (7), a clamping driving assembly (8) and two driving units. The two driving units are arranged side by side in the front-rear direction and are both located above the bottle (6). The driving unit includes a slide bar (9), a short slide sleeve (10) slidably arranged in the middle of the slide bar (9), a long slide sleeve (11) slidably arranged at the right end of the slide bar (9), and a clamping cylinder (12) coaxially arranged at the right end of the long slide sleeve (11). The slide bar (9) is arranged along the left-right direction and its left end is fixed to the frame (1). The long slide sleeve (11) extends rightward relative to the slide bar (9). The left end of the telescopic rod of the clamping cylinder (12) is fixedly connected to the right end of the slide bar (9). The material receiving groove (7) is arranged along the front-rear direction, is located directly below the filling head (4), is located above the bottle (6), and its front and rear ends are respectively fixed to the two long slide sleeves (11). The two clamping cylinders (12) are driven synchronously. The front and rear ends of the left clamping plate (5) are respectively fixed to the two short slide sleeves (10). The front and rear ends of the right clamping plate (5) are respectively fixed to the two long slide sleeves (11). The clamping driving assembly (8) is arranged on the frame (1) and is used to drive the left clamping plate (5) to move in the left-right direction; When the clamping cylinder (12) extends, the material receiving groove (7) is located directly below the filling head (4); when the clamping cylinder (12) contracts, the clamping driving assembly (8) drives the left clamping plate (5) to move rightward, and the two clamping plates (5) move toward each other to respectively clamp the left and right sides of the bottle neck, and the material receiving groove (7) moves to the left side of the filling head (4).

2. The filling device according to claim 1, characterized in that, The positioning mechanism is located at the frontmost and rearmost ends of the plurality of bottles (6) to be filled. It can move in the left-right direction. It is arranged on the right guardrail (3) and is a pneumatic stop pin structure.

3. The filling device according to claim 1, characterized in that, The guardrail (3) is located adjacent above the left end or the rear end of the conveying structure (2) and includes two guardrail rods arranged side by side up and down. The guardrail rods are arranged along the front-rear direction; the clamping plates (5) and the driving units are both located above the guardrail rods.

4. The filling device according to claim 1, characterized in that, Both of the two clamping plates (5) are arranged along the front-rear direction, and a plurality of clamping grooves are cooperatively arranged on their opposite sides. The plurality of clamping grooves are arranged side by side in the front-rear direction and correspondingly clamp one bottle (6). The clamping grooves are V-shaped grooves or trapezoidal grooves that cooperate with the bottle neck.

5. The filling device according to claim 1, characterized in that The slide bar (9) is a smooth round bar. The short sliding sleeve (10) and the long sliding sleeve (11) are both circular sleeves that fit with the slide bar (9). The long sliding sleeve (11) is slidably arranged at the right end of the slide bar (9) and its length is greater than that of the short sliding sleeve (10). A first fixing seat (13) is provided on the short sliding sleeve (10). The second fixing seat (14) and the third fixing seat (15) are arranged side by side left and right on the long sliding sleeve (11). The front and rear ends of the left clamping plate (5) are respectively fixed to the bottoms of the two first fixing seats (13). The front and rear ends of the right clamping plate (5) are respectively fixed to the bottoms of the two third fixing seats (15). The front and rear ends of the material receiving groove (7) are respectively fixed to the two second fixing seats (14).

6. The filling device according to claim 5, characterized in that The first fixing seat (13) is arranged on the short sliding sleeve (10) so as to be adjustable left and right. The second fixing seat (14) and the third fixing seat (15) are arranged on the long sliding sleeve (11) so as to be adjustable left and right. The first fixing seat (13), the second fixing seat (14) and the third fixing seat (15) are all rectangular blocks arranged along the front-rear direction. Circular holes that fit with the short sliding sleeve (10) or the long sliding sleeve (11) are provided on them along the left-right direction. A slot communicating with the circular hole is provided on the front side or the rear side along the front-rear direction. A locking bolt is provided at the position of the slot on them. The locking bolt is arranged vertically downward and passes through the slot downward.

7. The filling device according to claim 1, wherein, The clamping driving assembly (8) includes two slide table cylinders arranged side by side front and rear and driven synchronously. The slide table cylinder is arranged along the left-right direction. Its left end is fixed to the frame (1). Its right end is located on the left side of the left guardrail (3) or fixed to the left guardrail (3). It is driven synchronously with the clamping cylinder (12). The left end of the lower side of the left clamping plate (5) is fixed to the slide seat of the slide table cylinder.

8. The filling device according to claim 1, characterized in that, The material receiving groove (7) is a rectangular groove. Its front end is located below the front of the front filling head (4). Its rear end is located below the rear of the rear filling head (4). A hose is provided at its bottom. It is located above the clamping plate (5). The lower end of the hose is connected to the drain port below the conveying structure (2).

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