Anti-clogging filling machine and filling method

Abstract

The present application relates to the technical field of filling machine, particularly relates to a kind of anti-clogging filling machine and filling method, including filling mechanism, the filling mechanism includes scraping component, filling cavity, filling head assembly, the filling head assembly includes rigid pipeline, hose, first valve and compression assembly, the hose is fixedly connected with filling cavity bottom, the rigid pipeline is fixedly arranged in the outside of hose, the first valve is arranged at the connecting place of hose and filling cavity, and the compression assembly is used to intermittently generate push-pull power and extrude hose;The filling machine can effectively prevent clogging and drip.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of filling machines, in particular to a filling machine and a filling method for preventing blockage. BACKGROUND

[0002] As an important equipment in the packaging industry, the filling machine can be divided into liquid filling machine, powder filling machine and granular filling machine according to working principle. The liquid filling machine is widely used in food, medicine, cosmetics, chemical industry and other industries. Because the concentration of different liquids is different, the viscosity is also different. When filling the liquid with high viscosity, the liquid adhered to the filling head increases, which leads to the decrease of filling amount and the decrease of filling head flux, and even causes the blockage of filling head, affecting the filling efficiency. SUMMARY

[0003] The main purpose of the present application is to provide a filling machine and a filling method for preventing blockage, which solves the blockage and dripping problems of the liquid filling device in related art when filling viscous liquid.

[0004] To achieve the above purpose, the technical scheme adopted by the present application is as follows:

[0005] A filling machine for preventing blockage, comprising a filling mechanism, the filling mechanism comprising a scraping assembly, a filling cavity, a filling head assembly, the filling head assembly comprising a hard pipe, a hose, a first valve and a compression assembly, the hose being fixedly connected with the bottom of the filling cavity, the hard pipe being fixedly arranged outside the hose, the first valve being arranged at the connection between the hose and the filling cavity, and the compression assembly being used for intermittently generating a push-pull driving force to extrude the hose.

[0006] Further, the hard pipe is arranged as one horizontal pipe and two vertical pipes, one of which is on the top and the other of which is on the bottom and connected to form a pipe, and an open slot is arranged on one side of the vertical pipe on the top.

[0007] Further, the hard pipe is provided with an arc-shaped protrusion at the end of the horizontal pipe away from the filling cavity.

[0008] Further, the compression assembly comprises a mounting frame, a telescopic cylinder and a pressing block, the mounting frame is fixedly arranged on the filling cavity, the telescopic cylinder is arranged on the mounting frame, the transmission direction of the telescopic cylinder is consistent with the central axis of the arc-shaped open slot, the output end of the telescopic cylinder is provided with the pressing block, the size of the pressing block is not greater than that of the arc-shaped open slot arranged on the hard pipe, and the end of the pressing block close to the hard pipe is arc-shaped and the curvature is consistent with that of the inner wall of the hard pipe.

[0009] Further, the pressing block is fixedly connected with the hose close to it, and the pressing block is made of rubber.

[0010] Further, the material scraping assembly comprises a transmission cylinder, a rack, a transmission gear, a stirring rod and a scraper, the transmission cylinder is fixedly arranged on the fixed frame, the rack is slidably arranged on the fixed frame, the output end of the transmission cylinder is fixedly connected with the starting end of the rack, the transmission gear is arranged above the filling cavity and is in engagement with the rack, the central shaft of the transmission gear is fixedly connected with the stirring rod, the stirring rod is vertically arranged and penetrates through the upper portion of the filling cavity, the stirring rod is fixedly connected with the scraper, and the scraper is arranged in the filling cavity and is in contact with the inner wall of the filling cavity.

[0011] Further, the bottom of the filling cavity is funnel-shaped.

[0012] Further, the scraper is made of rubber and has a certain width, the end of the scraper in contact with the inner wall of the filling cavity is arc-shaped and has an arc consistent with that of the inner wall of the filling cavity, and arc-shaped grooves are symmetrically arranged on the front and back of the end of the scraper in contact with the inner wall of the filling cavity.

[0013] A filling method of a clogging-preventing filling machine, comprising the following steps:

[0014] S1, feeding, first, the first valve is closed, the pressing block pulls the hose away from the hard pipeline, and the filling material is conveyed into the filling cavity through the feeding pipeline;

[0015] S2, filling, after the conveying amount reaches the filling amount, the first valve is opened, the material in the filling cavity flows downward under the action of gravity, after the material in the filling cavity is about to end, the transmission cylinder is started to drive the rack to move, thereby driving the transmission gear in engagement with the rack to rotate, the transmission gear is fixedly connected with the stirring rod, the stirring rod is fixedly connected with the scraper, thereby making the scraper rotate along the inner wall of the filling cavity, scraping the material remaining on the inner wall of the filling cavity, and flowing downward along the arc-shaped grooves of the scraper into the hose;

[0016] S3, ending, after the material in the filling cavity flows out, the first valve is closed, the telescopic cylinder presses the pressing block and the hose into the hard pipeline and contacts with the inside of the hard pipeline, the residual material in the hose is pushed out through extrusion, then the telescopic cylinder makes the pressing block and the hose away from the hard pipeline, a negative pressure area is formed through the cooperation of the first valve and the pressing block, the material at the mouth of the hose is sucked back to the hard pipeline through pressure, and is blocked by the arc-shaped protrusion to prevent dripping.

[0017] Compared with the prior art, the present application has the following beneficial effects:

[0018] 1. The application sets a scraping assembly in the filling cavity, the scraping plate is made of rubber material and has a certain width, the contact end of the scraping plate and the inner wall of the filling cavity is arc-shaped and the radian is consistent with the radian of the inner wall of the filling cavity, which effectively ensures that the scraping plate and the inner wall of the filling cavity are in full contact, arc-shaped grooves are symmetrically arranged on the front and back of the contact end of the scraping plate and the inner wall of the filling cavity, and the liquid scraped from the inner wall of the filling cavity can be introduced into the arc-shaped grooves when scraping, so that the liquid flows downward along the wall of the arc-shaped groove, and the rubber material has excellent wear resistance and elasticity, which can effectively reduce wear and increase service life;

[0019] 2. The application sets an arc-shaped protrusion at the end of the horizontal pipeline away from the filling cavity, and an open slot on one side of the vertical pipeline, the liquid in the hose is pushed out of the pipeline through the open slot and the hard pipeline by the pressing block, and then the pressing block is recycled to generate negative pressure in the pipeline, avoiding backflow to cause dripping after filling is completed. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a whole structure schematic diagram of the application;

[0021] Figure 2 It is a cross-sectional structure schematic diagram of the filling mechanism of the application;

[0022] Figure 3 It is a partial structure schematic diagram of the scraping assembly of the application;

[0023] Figure 4 It is a top view structure schematic diagram of the scraping plate of the application;

[0024] Figure 5 It is a structure schematic diagram of the filling head assembly of the application;

[0025] Figure 6 It is a structure schematic diagram of the pressing block of the application.

[0026] REFERENCE NUMERALS

[0027] 1. rack; 2. bottle washing device; 3. cap screwing device; 4. conveying device; 5. filling device; 32. cap screwing head; 53. feeding hopper; 54. feeding pipeline; 55. fixing frame; 56. filling mechanism; 561. scraping assembly; 562. filling cavity; 563. filling head assembly; 5631. hard pipeline; 5632. hose; 5633. first valve; 5634. pressing assembly; 5611. transmission air cylinder; 5612. rack gear; 5613. transmission gear; 5614. stirring rod; 5615. scraping plate; 5616. arc-shaped groove; 5635. arc-shaped protrusion; 5636. open slot; 5637. mounting frame; 5638. telescopic air cylinder; 5639. pressing block. DETAILED DESCRIPTION

[0028] Clearly, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those of ordinary skill in the art without creative efforts, fall within the protection scope of the present application.

[0029] Embodiment 1

[0030] As Figures 1-6As shown, an anti-clogging filling machine includes a frame 1, a bottle washing device 2, a capping device 3, a conveying device 4, and a filling device 5. The bottle washing device 2, capping device 3, conveying device 4, and filling device 5 are all mounted on the frame 1. The bottle washing device 2 is equipped with a bottle clamp (not shown in the figure). The bottle clamp (not shown in the figure) holds the bottle mouth of the filling bottle fed in by the conveying device 4 and rotates it 180 degrees along the guide rail (not shown in the figure) so that the bottle mouth faces downwards. Then, a nozzle (not shown in the figure) sprays high-pressure water or disinfectant to rinse the inner wall of the bottle. After cleaning, the filling bottle, held by the bottle clamp (not shown in the figure), rotates 180 degrees along the guide rail (not shown in the figure) so that the bottle mouth faces downwards. With the bottle neck facing upwards, the cleaned bottle is fed into the filling device 5 via the conveyor 4. The bottle neck is clamped by a neck clamp (not shown in the figure) upon entering the filling device 5. The bottle is then lifted by a lifting mechanism (not shown in the figure), and filling is performed by gravity. After the filling head assembly 563 contacts the bottle neck, the first valve 5633 opens to complete the filling. After filling, the lifting mechanism (not shown in the figure) lowers the filling head assembly 563 away from the bottle neck. The filled bottle is then conveyed by the conveyor 4 to the capping device 3. An anti-rotation blade 31 (not shown in the figure) on the capping device 3 clamps the bottle neck, keeping the bottle upright and preventing rotation. The capping head 32 is mounted on the capping device 3. Maintaining both revolution and rotation, the cam performs cap-grabbing, capping, screwing, and cap-removing actions to complete the capping process. The capped bottles are then conveyed from the capping device 3 by the conveyor 4 and exit the filling machine. The filling device 5 includes a hopper 53, a feed pipe 54, a fixed frame 55, and a filling mechanism 56. The hopper 53 is mounted on the fixed frame 55 and connected to the feed pipe 54. The filling mechanism 56 is located at the end of the feed pipe 54 furthest from the hopper 53 and is fixedly connected to the feed pipe 54. The filling mechanism 56 includes a scraper assembly 561, a filling chamber 562, and a filling head assembly 563. The cavity 562 is fixedly mounted on the fixing frame 55. The scraper assembly 561 is located above the filling cavity 562. The filling cavity 562 is provided with a filling head assembly 563 at the end away from the scraper assembly 561. The filling head assembly 563 includes a rigid pipe 5631, a flexible hose 5632, a first valve 5633, and a pressure assembly 5634. The flexible hose 5632 is fixedly connected to the bottom of the filling cavity 562. The rigid pipe 5631 is fixedly located on the outside of the flexible hose 5632. The first valve 5633 is located at the end of the filling cavity 562 away from the scraper assembly 561. The pressure assembly 5634 is located on the outside of the end of the rigid pipe 5631 away from the first valve 5633.

[0031] like Figures 4-5As shown, the scraping assembly 561 includes a transmission cylinder 5611, a rack 5612, a transmission gear 5613, a stirring rod 5614 and a scraper 5615, the transmission cylinder 5611 is fixedly arranged on the fixed frame 55, the rack 5612 is slidingly arranged on the fixed frame 55, the output end of the transmission cylinder 5611 is fixedly connected with the starting end of the rack 5612, the transmission gear 5613 is arranged above the filling cavity 562 and is engaged with the rack 5612, the central shaft of the transmission gear 5613 is fixedly connected with the stirring rod 5614, the stirring rod 5614 is arranged vertically and penetrates through the upper portion of the filling cavity 562, the stirring rod 5614 is fixedly connected with the scraper 5615, and the scraper 5615 is arranged inside the filling cavity 562 and is in contact with the inner wall of the filling cavity 562.

[0032] As shown in Figures 4-6 The bottom of the filling cavity 562 is funnel-shaped, which facilitates the introduction of the material into the filling bottle under the action of gravity during the filling process. The scraper 5615 has a certain width and is made of rubber. The contact end of the scraper 5615 with the inner wall of the filling cavity 562 is arc-shaped and has the same curvature as the inner wall of the filling cavity 562, which effectively ensures that the scraper 5615 is in full contact with the inner wall of the filling cavity 562. The front and rear sides of the contact end of the scraper 5615 with the inner wall of the filling cavity 562 are symmetrically provided with arc-shaped grooves 5616. When scraping, the liquid scraped from the inner wall of the filling cavity 562 can be introduced into the arc-shaped grooves 5616. The liquid flows downward along the wall of the arc-shaped grooves 5616 under the action of gravity, the fluidity of the liquid and the guiding action of the arc-shaped grooves 5616 on the liquid. The use of rubber as the material of the scraper 5615 can increase the friction between the scraper 5615 and the inner wall of the filling cavity 562, making it easier to scrape the liquid on the inner wall of the filling cavity 562 clean and reducing adhesion. At the same time, the rubber material has excellent wear resistance and elasticity, which can effectively reduce wear and increase service life.

[0033] As shown in Figure 4 and Figure 6As shown, the hard pipeline 5631 is arranged as one horizontal pipeline and two vertical pipelines, one upper and one lower, and connected to form a pipeline, the soft tube 5632 is inside the hard pipeline 5631, the hard pipeline 5631 is provided with an arc-shaped protrusion 5635 at the end of the horizontal pipeline away from the filling cavity 562, the arc-shaped protrusion 5635 facilitates avoiding the dripping phenomenon caused by backflow after the filling is completed when the liquid in the back-suction tube port, an open slot 5636 is arranged on one side of the vertical pipeline, the compression assembly 5634 comprises a mounting frame 5637, a telescopic air cylinder 5638 and a pressing block 5639, the mounting frame 5637 is fixedly arranged on the filling cavity 562, the telescopic air cylinder 5638 is arranged on the mounting frame 5637, the transmission direction of the telescopic air cylinder 5638 is consistent with the central axis of the arc-shaped open slot 5636, the output end of the telescopic air cylinder 5638 is provided with the pressing block 5639, the size of the pressing block 5639 is not greater than that of the arc-shaped open slot 5636 arranged on the hard pipeline 5631, and the end of the pressing block 5639 close to the hard pipeline 5631 is arc-shaped and has the same curvature as the hard pipeline 5631.

[0034] The embodiment of the present application also provides a filling method, which adopts the above-mentioned anti-blocking filling machine to fill, and comprises the following steps:

[0035] S1, loading, first, the first valve 5633 is closed, the pressing block 5639 is away from the hard pipeline 5631, the feeding hopper 53 delivers the filling material to the filling cavity 562 through the feeding pipeline 54;

[0036] S2, filling, after the delivery amount reaches the filling amount, the first valve 5633 is opened, the material in the filling cavity 562 flows downward under the action of gravity, after the material in the filling cavity 562 is about to end, the transmission air cylinder 5611 is started to drive the rack 5612 to move, so as to drive the transmission gear 5613 meshing with the rack 5612 to rotate, the transmission gear 5613 is fixedly connected with the stirring rod 5614, the stirring rod 5614 is fixedly connected with the scraper 5615, so that the scraper 5615 rotates along the inner wall of the filling cavity 562, and the material remaining on the inner wall of the filling cavity 562 is scraped off and flows downward to the soft tube 5632 along the semicircular arc of the scraper 5615;

[0037] S3, ending, after the material in the filling cavity 562 flows out completely, the first valve 5633 is closed, the telescopic air cylinder 5638 presses the pressing block 5639 into the inside of the hard pipeline 5631 and contacts the inside of the hard pipeline 5631, the residual material in the soft tube 5632 is pushed out through extrusion, then the telescopic air cylinder 5638 moves the pressing block 5639 away from the hard pipeline 5631, a negative pressure area is formed through the cooperation of the first valve 5633 and the pressing block 5639, the material at the port of the soft tube 5632 is sucked back to the hard pipeline 5631 through pressure, and is blocked by the arc-shaped protrusion 5635 to prevent dripping.

[0038] Those skilled in the art will recognize that the above-described embodiments are merely illustrative of the application and should not be used to limit the scope of the application, which is defined in the claims below.

Claims

1. A clog-resistant filling machine, comprising a filling mechanism (56), characterized in that, The filling mechanism (56) includes a scraper assembly (561), a filling chamber (562), and a filling head assembly (563). The filling head assembly (563) includes a rigid pipe (5631), a flexible tube (5632), a first valve (5633), and a compression assembly (5634). The flexible tube (5632) is fixedly connected to the bottom of the filling chamber (562). The rigid pipe (5631) is fixedly disposed on the outside of the flexible tube (5632). The first valve (5633) is disposed at the connection between the flexible tube (5632) and the filling chamber (562). The compression assembly (5634) is used to intermittently generate pushing and pulling force to squeeze the flexible tube. The rigid pipe (5631) is configured as one horizontal pipe and two vertical pipes, one above and one below, connected to form a pipe. An arc-shaped opening groove (5636) is provided on one side of the upper vertical pipe. The rigid pipe (5631) has an arc-shaped protrusion (5635) at the end of the horizontal pipe away from the filling cavity (562); the pressing assembly (5634) includes a mounting frame (5637), a telescopic cylinder (5638), and a pressing block (5639). The mounting frame (5637) is fixed on the filling cavity (562). The mounting frame (5637) is provided with a telescopic cylinder (5638). The transmission direction of the telescopic cylinder (5638) is consistent with the central axis of the arc-shaped opening groove (5636). The output end of the telescopic cylinder (5638) is provided with a pressing block (5639). The size of the pressing block (5639) is not larger than the arc-shaped opening groove (5636) opened on the rigid pipe (5631). The end of the pressing block (5639) near the rigid pipe (5631) is arc-shaped, and the curvature is consistent with the curvature of the inner wall of the rigid pipe (5631).

2. The anti-clogging filling machine according to claim 1, characterized in that, The pressure block (5639) is fixedly connected to the adjacent hose (5632), and the pressure block (5639) is made of rubber.

3. The anti-clogging filling machine according to claim 1, characterized in that, The scraping assembly (561) includes a transmission cylinder (5611), a rack (5612), a transmission gear (5613), a stirring rod (5614), and a scraper (5615). The transmission cylinder (5611) is fixedly mounted on a fixed frame (55), and the rack (5612) is slidably mounted on the fixed frame (55). The output end of the transmission cylinder (5611) is fixedly connected to the starting end of the rack (5612). The transmission gear (5613) is... 613) Located above the filling cavity (562) and meshing with the rack (5612), the central shaft of the transmission gear (5613) is fixedly connected to the stirring rod (5614), the stirring rod (5614) is arranged vertically and passes through the upper part of the filling cavity (562), the stirring rod (5614) is fixedly connected to the scraper (5615), the scraper (5615) is located inside the filling cavity (562) and contacts the inner wall of the filling cavity (562).

4. The anti-clogging filling machine according to claim 1, characterized in that, The bottom of the filling cavity (562) is funnel-shaped.

5. A clog-resistant filling machine according to claim 3, characterized in that, The scraper (5615) is made of rubber and has a certain width. The end of the scraper (5615) that contacts the inner wall of the filling cavity (562) is arc-shaped and the arc is consistent with the arc of the inner wall of the filling cavity (562). Arc-shaped grooves (5616) are symmetrically arranged on the front and rear sides of the end of the scraper (5615) that contacts the inner wall of the filling cavity (562).

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