Anti-blocking filling machine and filling method

Abstract

The invention relates to the technical field of filling machinery, in particular to an anti-blocking filling machine and a filling method.The anti-blocking filling machine comprises a filling mechanism, the filling mechanism comprises a scraping assembly, a filling cavity and a filling head assembly, the filling head assembly comprises a hard pipeline, a hose, a first valve and a pressing assembly, and the hose is fixedly connected with the bottom of the filling cavity; the hard pipeline is fixedly arranged on the outer side of the hose, the first valve is arranged at the joint of the hose and the filling cavity, and the pressing assembly is used for intermittently generating push-pull power to extrude the hose; the filling machine can effectively prevent blockage and drip leakage.

Description

Technical Field

[0001] The invention relates to the technical field of filling machinery, and in particular to an anti-clogging filling machine and a filling method. Background Art

[0002] As an important equipment in the packaging industry, filling machines can be divided into liquid filling machines, powder filling machines, and granule filling machines according to their working principles. Liquid filling machines are widely used in food, medicine, cosmetics, chemical and other industries. Due to the different concentrations and viscosities of different liquids, when filling more viscous liquids, more liquid adheres to the filling head, resulting in a decrease in filling volume, a smaller filling head flux, and even filling head blockage, affecting filling efficiency. Summary of the invention

[0003] The main purpose of the present invention is to provide an anti-clogging filling machine and a filling method, so as to solve the problems of clogging and dripping existing in the liquid filling equipment in the related art when filling viscous liquid.

[0004] To achieve the above object, the technical solution adopted by the present invention is:

[0005] A blocking-proof filling machine comprises a filling mechanism, wherein the filling mechanism comprises a scraper assembly, a filling chamber, and a filling head assembly, wherein the filling head assembly comprises a hard pipe, a hose, a first valve, and a compression assembly, wherein the hose is fixedly connected to the bottom of the filling chamber, the hard pipe is fixedly arranged on the outside of the hose, the first valve is arranged at the connection between the hose and the filling chamber, and the compression assembly is used to intermittently generate push-pull power to squeeze the hose.

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

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

[0008] Furthermore, the compression assembly includes a mounting frame, a telescopic cylinder, and a pressure block. The mounting frame is fixed on the filling chamber, and the mounting frame is provided with a telescopic cylinder. The transmission direction of the telescopic cylinder is consistent with the central axis of the arc-shaped opening groove. A pressure block is provided at the output end of the telescopic cylinder. The size of the pressure block is not larger than the arc-shaped opening groove opened on the hard pipe. The pressure block is arc-shaped near the end of the hard pipe, and the curvature is consistent with the curvature of the inner wall of the hard pipe.

[0009] Furthermore, the pressing block is fixedly connected to a nearby hose, and the pressing block is made of rubber.

[0010] Furthermore, the scraper assembly includes a transmission cylinder, a rack, a transmission gear, a stirring rod and a scraper. The transmission cylinder is fixedly mounted on a fixed frame, the rack is slidably mounted on the fixed frame, the output end of the transmission cylinder is fixedly connected to the starting end of the rack, the transmission gear is disposed above the filling chamber and meshes with the rack, the central axis of the transmission gear is fixedly connected to the stirring rod, the stirring rod is vertically disposed and passes through the upper part of the filling chamber, the stirring rod is fixedly connected to the scraper, and the scraper is disposed inside the filling chamber and contacts the inner wall of the filling chamber.

[0011] Furthermore, the bottom of the filling chamber is configured to be funnel-shaped.

[0012] Furthermore, the scraper is made of rubber and has a certain width. The contact end of the scraper with the inner wall of the filling chamber is set to be arc-shaped and the curvature is consistent with the curvature of the inner wall of the filling chamber. Arc grooves are symmetrically arranged on the front and rear sides of the contact end of the scraper with the inner wall of the filling chamber.

[0013] A filling method for an anti-clogging filling machine comprises the following steps:

[0014] S1: First, the first valve is closed, and the pressure block pulls the hose away from the hard pipe, and the filling material is transported to the filling cavity through the feed pipe;

[0015] S2 filling, when the conveying volume reaches the filling volume, the first valve opens, and the material in the filling chamber flows downward under the action of gravity. When the material in the filling chamber is about to end, the transmission cylinder starts to drive the rack to move, thereby driving the transmission gear meshing with the rack to rotate, and the transmission gear is fixedly connected to the stirring rod, and the stirring rod is fixedly connected to the scraper, so that the scraper rotates along the inner wall of the filling chamber, scraping off the material remaining on the inner wall of the filling chamber, and flows downward into the hose along the arc groove of the scraper;

[0016] S3 ends, and after all the materials in the filling chamber have flowed out, the first valve is closed, and the telescopic cylinder presses the pressing block and the hose into the hard pipe and contacts the inside of the hard pipe, and pushes out the residual material in the hose by squeezing, and then the telescopic cylinder moves the pressing block and the hose away from the hard pipe, and a negative pressure area is formed by the cooperation of the first valve and the pressing block, and the material at the hose mouth is sucked back to the hard pipe by pressure, and is blocked by the arc-shaped protrusion to prevent dripping.

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

[0018] 1. The present invention arranges a scraper assembly in the filling chamber. The scraper is made of rubber and has a certain width. The contact end of the scraper with the inner wall of the filling chamber is set to an arc shape and the arc is consistent with the arc of the inner wall of the filling chamber, which effectively ensures that the scraper is in full contact with the inner wall of the filling chamber. The front and rear sides of the contact end of the scraper with the inner wall of the filling chamber are symmetrically provided with arc grooves. When scraping, the liquid scraped off the inner wall of the filling chamber can be introduced into the arc groove, so that the liquid flows downward along the wall of the arc groove. At the same time, the rubber material has excellent wear resistance and elasticity, which can effectively reduce wear and increase service life.

[0019] 2. The present invention provides an arc-shaped protrusion at the end of the horizontal pipe away from the filling chamber, and provides an open groove on one side of the vertical pipe. The pressing block contacts the hard pipe through the open groove, pushes the liquid in the hose out of the pipe, and then recovers it through the pressing block, so that negative pressure is generated in the pipe to avoid backflow and dripping after filling. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the invention;

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

[0022] Figure 3 It is a partial structural schematic diagram of the scraper assembly of the present invention;

[0023] Figure 4 It is a schematic diagram of the top view structure of the scraper of the present invention;

[0024] Figure 5 This is a schematic diagram of the structure of the filling head assembly of the present invention;

[0025] Figure 6 It is a schematic diagram of the card block structure of the present invention.

[0026] Reference numerals

[0027] 1. Frame; 2. Bottle washing device; 3. Capping device; 4. Conveying device; 5. Filling device; 32. Capping head; 53. Feed hopper; 54. Feed pipe; 55. Fixed frame; 56. Filling mechanism; 561. Scraper assembly; 562. Filling chamber; 563. Filling head assembly; 5631. Hard pipe; 5632. Hose; 5633. First valve; 5634. Compression assembly; 5611. Transmission cylinder; 5612. Rack; 5613. Transmission gear; 5614. Stirring rod; 5615. Scraper; 5616. Arc groove; 5635. Arc protrusion; 5636. Open groove; 5637. Mounting frame; 5638. Telescopic cylinder; 5639. Press block. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] Example 1

[0030] like Figure 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, the capping device 3, the conveying device 4 and the filling device 5 are all arranged on the frame 1. The bottle washing device 2 is provided with a bottle clamp (not shown in the figure). The bottle clamp (not shown in the figure) clamps the mouth of the filling bottle fed through the conveying device 4, and turns it 180 degrees along a guide rail (not shown in the figure) to make the bottle mouth face downward, and then a nozzle (not shown in the figure) sprays high-pressure water or disinfectant to wash the inner wall of the bottle. After the cleaning is completed, the filling bottle is clamped by the bottle clamp (not shown in the figure) and turned 180 degrees along the guide rail (not shown in the figure) to make the bottle mouth face downward. The bottle mouth faces upward, and the washed bottle is introduced into the filling device 5 through the conveying device 4. The filling bottle entering the filling device 5 is clamped by the bottle neck clamp (not shown in the figure), and then the filling bottle is lifted up by the lifting mechanism (not shown in the figure). The filling adopts the gravity filling method. After the filling head assembly 563 contacts the bottle mouth, the first valve 5633 is opened to complete the filling. After the filling is completed, the lifting mechanism (not shown in the figure) is lowered to make the filling head assembly 563 leave the bottle mouth. The filled filling bottle is sent to the capping device 3 by the conveying device 4. The anti-rotation knife 31 (not shown in the figure) on the capping device 3 clamps the bottleneck to keep the bottle upright and prevent rotation. The capping head 32 is on the capping device 3. The bottle 5 is kept in revolution and rotation, and the cam is used to realize the actions of catching, covering, screwing and removing the cap, and the capping process is completed. The filled bottles that have completed the capping are conveyed out of the filling machine from the screwing device 3 through the conveying device 4. The filling device 5 includes a feed hopper 53, a feed pipe 54, a fixing frame 55, and a filling mechanism 56. The feed hopper 53 is arranged on the fixing frame 55, and the feed hopper 53 is connected to the feed pipe 54. The end of the feed pipe 54 away from the feed hopper 53 is provided with a filling mechanism 56, and the filling mechanism 56 is fixedly connected to the feed pipe 54. The filling mechanism 56 includes a scraping assembly 561, a filling cavity 562, and a filling head assembly 563. The cavity 562 is fixed on the fixed frame 55, the scraper assembly 561 is arranged above the filling cavity 562, and a filling head assembly 563 is provided at one end of the filling cavity 562 away from the scraper assembly 561. The filling head assembly 563 includes a hard pipe 5631, a hose 5632, a first valve 5633 and a pressing assembly 5634. The hose 5632 is fixedly connected to the bottom of the filling cavity 562, the hard pipe 5631 is fixedly arranged on the outside of the hose 5632, the first valve 5633 is arranged at the end of the filling cavity 562 away from the scraper assembly 561, and the pressing assembly 5634 is arranged on the outside of the hard pipe 5631 away from the first valve 5633.

[0031] like Figure 4-5As shown, the scraper 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, and the rack 5612 is slidably arranged 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 arranged above the filling chamber 562 and meshes with the rack 5612. The central axis of the transmission gear 5613 is fixedly connected to the stirring rod 5614. The stirring rod 5614 is arranged in a vertical direction and passes through the upper part of the filling chamber 562. The stirring rod 5614 is fixedly connected to the scraper 5615. The scraper 5615 is arranged inside the filling chamber 562 and contacts with the inner wall of the filling chamber 562.

[0032] like Figure 4-6 As shown, the bottom of the filling chamber 562 is set to be funnel-shaped, which is convenient for the material to be introduced 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 chamber 562 is set to be arc-shaped and the arc is consistent with the arc of the inner wall of the filling chamber 562, which effectively ensures that the scraper 5615 is in full contact with the inner wall of the filling chamber 562. The front and rear sides of the contact end of the scraper 5615 with the inner wall of the filling chamber 562 are symmetrically provided with arc grooves 5616, which can be used to scrape the material. The liquid scraped off the inner wall of the filling chamber 562 is introduced into the arc-shaped groove 5616, and the liquid flows downward along the wall of the arc-shaped groove 5616 through the action of gravity, the fluidity of the liquid and the guiding effect of the arc-shaped groove 5616 on the liquid. The scraper 5615 uses rubber as the scraper 5615 material to increase the friction between the scraper 5615 and the inner wall of the filling chamber 562, making it easier to scrape the liquid on the inner wall of the filling chamber 562 and reduce adhesion. At the same time, the rubber material has excellent wear resistance and elasticity, which can effectively reduce wear and increase service life.

[0033] like Figure 4 and Figure 6As shown, the hard pipe 5631 is configured as a horizontal pipe and two vertical pipes, one of which is on the top and the other is on the bottom and connected to form a pipe. The hose 5632 is inside the hard pipe 5631. The hard pipe 5631 is provided with an arc-shaped protrusion 5635 at the end of the horizontal pipe away from the filling chamber 562. The arc-shaped protrusion 5635 is convenient for avoiding backflow when the liquid in the pipe mouth is sucked back, resulting in dripping after the filling is completed. An open groove 5636 is provided on one side of the vertical pipe. The compression assembly 5634 includes a mounting frame 5637, an extension A telescopic cylinder 5638 and a pressure block 5639 are provided. The mounting frame 5637 is fixedly mounted on the filling chamber 562. A telescopic cylinder 5638 is provided on the mounting frame 5637. The transmission direction of the telescopic cylinder 5638 is consistent with the central axis of the arc-shaped opening groove 5636. A pressure block 5639 is provided at the output end of the telescopic cylinder 5638. The size of the pressure block 5639 is not larger than the arc-shaped opening groove 5636 provided on the hard pipe 5631. The pressure block 5639 is arc-shaped near the end of the hard pipe 5631, and the curvature is consistent with the curvature of the hard pipe 5631.

[0034] The embodiment of the present invention further provides a filling method, which uses the above-mentioned anti-blocking filling machine for filling, comprising the following steps:

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

[0036] S2 filling, when the conveying volume reaches the filling volume, the first valve 5633 is opened, and the material in the filling chamber 562 flows downward under the action of gravity. When the material in the filling chamber 562 is about to end, the transmission cylinder 5611 starts to drive the rack 5612 to move, thereby driving the transmission gear 5613 meshing with the rack 5612 to rotate, and the transmission gear 5613 is fixedly connected to the stirring rod 5614, and the stirring rod 5614 is fixedly connected to the scraper 5615, so that the scraper 5615 rotates along the inner wall of the filling chamber 562, scraping the material remaining on the inner wall of the filling chamber 562, and flowing downward along the semicircular arc of the scraper 5615 into the hose 5632;

[0037] S3 ends, and after all the materials in the filling chamber 562 have flowed out, the first valve 5633 is closed, and the telescopic cylinder 5638 presses the pressing block 5639 into the interior of the hard pipe 5631 and contacts the interior of the hard pipe 5631, and pushes out the residual materials in the hose 5632 by squeezing. Then the telescopic cylinder 5638 moves the pressing block 5639 away from the hard pipe 5631, and a negative pressure area is formed by the cooperation of the first valve 5633 and the pressing block 5639. The material at the mouth of the hose 5632 is sucked back to the hard pipe 5631 by pressure, and is blocked by the arc-shaped protrusion 5635 to prevent leakage.

[0038] Those skilled in the art should recognize that the above embodiments are only used to illustrate the present invention, and are not intended to limit the present invention. As long as they are within the spirit of the present invention, any changes or modifications to the above embodiments will fall within the scope of the claims of the present invention.

Claims

1. An anti-clogging filling machine, comprising a filling mechanism (56), characterized in that: The filling mechanism (56) comprises a scraper assembly (561), a filling chamber (562), and a filling head assembly (563); the filling head assembly (563) comprises a hard pipe (5631), a hose (5632), a first valve (5633), and a pressing assembly (5634); the hose (5632) is fixedly connected to the bottom of the filling chamber (562); the hard pipe (5631) is fixedly arranged on the outside of the hose (5632); the first valve (5633) is arranged at the connection between the hose (5632) and the filling chamber (562); and the pressing assembly (5634) is used to intermittently generate push-pull power to squeeze the hose.

2. The anti-clogging filling machine according to claim 1, characterized in that: The hard pipe (5631) is configured as a horizontal pipe and two vertical pipes, one of which is on top and the other is on the bottom and they are connected to form a pipe, and an open groove (5636) is provided on one side of the vertical pipe on top.

3. The anti-clogging filling machine according to claim 2, characterized in that: The hard pipe (5631) is provided with an arc-shaped protrusion (5635) at the end of the horizontal pipe away from the filling chamber (562).

4. The anti-clogging filling machine according to claim 1, characterized in that: The compression assembly (5634) includes a mounting frame (5637), a telescopic cylinder (5638), and a pressure block (5639). The mounting frame (5637) is fixedly mounted on the filling chamber (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). A pressure block (5639) is provided at the output end of the telescopic cylinder (5638). The size of the pressure block (5639) is not larger than the arc-shaped opening groove (5636) provided on the hard pipe (5631). The pressure block (5639) is arc-shaped near the end of the hard pipe (5631), and the curvature is consistent with the curvature of the inner wall of the hard pipe (5631).

5. The anti-clogging filling machine according to claim 4, characterized in that: The pressing block (5639) is fixedly connected to a nearby hose (5632), and the pressing block (5639) is made of rubber.

6. The anti-clogging filling machine according to claim 1, characterized in that: The scraper assembly (561) comprises 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); 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 connected to the stirring rod (5614) and the scraper (5615) is connected to the stirring rod (5614). 613) is arranged above the filling chamber (562) and meshes with the rack (5612), the central axis of the transmission gear (5613) is fixedly connected to the stirring rod (5614), the stirring rod (5614) is arranged in a vertical direction and passes through the upper part of the filling chamber (562), the stirring rod (5614) is fixedly connected to the scraper (5615), and the scraper (5615) is arranged inside the filling chamber (562) and contacts the inner wall of the filling chamber (562).

7. The anti-clogging filling machine according to claim 1, characterized in that: The bottom of the filling chamber (562) is designed to be funnel-shaped.

8. The anti-clogging filling machine according to claim 6, characterized in that: The scraper (5615) is made of rubber and has a certain width. The contact end of the scraper (5615) with the inner wall of the filling chamber (562) is set to be arc-shaped and the curvature is consistent with the curvature of the inner wall of the filling chamber (562). Arc grooves (5616) are symmetrically arranged on the front and rear sides of the contact end of the scraper (5615) with the inner wall of the filling chamber (562).

9. A filling method for an anti-clogging filling machine according to any one of claims 1 to 8, characterized in that: The following steps are involved: S1: Loading, first, the first valve (5633) is closed, the pressing block (5639) pulls the hose (5632) away from the hard pipe (5631), and the filling material is transported to the filling chamber (562) through the feeding pipe (54); S2 filling, when the conveying volume reaches the filling volume, the first valve (5633) opens, and the material in the filling chamber (562) flows downward due to gravity. When the material in the filling chamber (562) is about to be finished, the transmission cylinder (5611) starts to drive the rack (5612) to move, thereby driving the transmission gear (5613) meshing with the rack (5612) to rotate, and the transmission gear (5613) is fixedly connected to the stirring rod (5614), and the stirring rod (5614) is fixedly connected to the scraper (5615), so that the scraper (5615) rotates along the inner wall of the filling chamber (562), scraping the material remaining on the inner wall of the filling chamber (562), and flowing downward along the arc-shaped groove (5616) of the scraper (5615) into the hose (5632); S3 ends, and after all the materials in the filling chamber (562) have flowed out, the first valve (5633) is closed, and the telescopic cylinder (5638) presses the pressing block (5639) and the hose (5632) into the interior of the hard pipe (5631) and contacts the interior of the hard pipe (5631), and pushes out the residual materials in the hose (5632) by squeezing, and then the telescopic cylinder (5638) moves the pressing block (5639) and the hose (5632) away from the hard pipe (5631), and a negative pressure zone is formed by the cooperation of the first valve (5633) and the pressing block (5639), and the materials at the mouth of the hose (5632) are sucked back into the hard pipe (5631) by pressure, and are blocked by the arc-shaped protrusion (5635) to prevent leakage.

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