Double drip-proof device for blanking head of filling machine

Abstract

The utility model relates to the technical field of filling machines, in particular to a double drip-proof device for a blanking head of a filling machine, which comprises a blanking pipe detachably connected to the lower part of the blanking head, wherein an upper blocking structure and a lower blocking structure are respectively arranged at the upper end and the lower end of the blanking pipe; the upper blocking structure comprises a sealing piece movably connected between the discharging head and the discharging pipe, the upper blocking structure and the lower blocking structure are arranged in the discharging pipe and used for forming two anti-leakage protection for the interior of the discharging pipe, the whole structure does not need to use an external control source, and therefore the anti-leakage structure is simple in structure, convenient to operate and high in practicability. And the structure design is simple and reasonable, no residue is left below the blanking pipe after filling, the bottle cap can be kept clean and tidy, and the qualified rate of screw cap sealing and laser coding of bottled products is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of filling machines, in particular to a double anti-dripping device for the blanking head of a filling machine. Background Technique

[0002] In the existing liquid product filling process, rotary filling machines are generally used for efficient filling. The production speed of such filling machines is usually 60 to 70 bottles per minute, and the main production processes include bottle sorting, conveying, screw bottle separation, bottle detection, rotary filling, weight checking, capping, coding, boxing, and finished product warehousing. However, there are certain problems with the rotary filling machines in the prior art during the filling process.

[0003] Specifically, during the filling process, the liquid product enters through a cylindrical material cylinder at the upper part of the filling machine. A rotary valve is installed at the bottom of the material cylinder, and a blanking head is installed at the bottom of the rotary valve. After the empty bottles are separated by the screw, the position of the bottles is detected by an electric eye, and then the rotary valve is opened for rotary filling. After filling, the rotary valve is closed. However, due to the dripping of the remaining material in the rotary valve core, the blanking head will continue to drip after filling, and these drips will adhere to the bottle body, resulting in poor capping sealing and blurred laser coding. This not only increases the production of defective products, but also causes the loss of packaging materials, and at the same time reduces the efficiency of the production line. Content of the Utility Model

[0004] The purpose of the utility model is to solve the disadvantages in the prior art that drips will adhere to the bottle body, resulting in poor capping sealing and blurred laser coding, etc., and to propose a double anti-dripping device for the blanking head of a filling machine.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] Design a double anti-dripping device for the blanking head of a filling machine, including:

[0007] A blanking pipe detachably connected below the blanking head:

[0008] An upper blocking structure and a lower blocking structure are respectively arranged at the upper end and the lower end of the blanking pipe;

[0009] Wherein the upper blocking structure includes a sealing member movably connected between the blanking head and the blanking pipe, and the sealing member is used to seal the bottom opening of the blanking head. An elastic member is also arranged between the blanking pipe and the sealing member.

[0010] Further, the sealing member includes a piston member, and a receiving groove is also opened at one side end of the piston member, and one end of the elastic member is placed in the receiving groove;

[0011] Wherein, at least one discharge hole is also opened on the outer periphery of the piston member.

[0012] Furthermore, the end of the piston member facing away from the receiving groove is inwardly contracted to form a sealing head, and a sealing ring is sleeved on the outer side of the sealing head;

[0013] A sealing seat adapted to the sealing head is provided in the bottom opening of the blanking head.

[0014] Furthermore, the elastic member is a spring, and a stop ring convex is fixedly installed on the inner side of the discharge pipe, and the other end of the spring abuts against the top of the stop ring convex.

[0015] Furthermore, the lower barrier structure includes a silicone plug inserted into the bottom end of the discharge pipe, and a rice-shaped opening is provided on the end surface of the silicone plug.

[0016] Furthermore, the bottom of the discharge head has a threaded portion, and a nut is slidably connected to the outside of the discharge pipe. The nut is stopped by a stop block on the outside of the discharge pipe, and the nut is threadedly connected to the threaded portion.

[0017] The utility model proposes a double anti-drip device for the discharge head of a filling machine, which has the beneficial effect that: in the utility model, an upper barrier structure and a lower barrier structure are arranged inside the discharge pipe, so as to form a second anti-drip protection for the inside of the discharge pipe; the overall structure does not require the aid of an external control source and can be opened only by the weight of the material body; the structural design is simple and reasonable, ensuring that there is no residue under the discharge pipe after filling, and the bottle cap can be kept clean, thereby improving the qualified rate of the capping seal and laser coding of the bottled product. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional diagram of the utility model;

[0019] Figure 2 It is an exploded view of the utility model;

[0020] Figure 3 This is a schematic diagram of the sealing structure of the utility model;

[0021] Figure 4 This is a schematic structural diagram of the lower barrier structure of the utility model;

[0022] Figure 5 It is a cross-sectional view of the present utility model.

[0023] In the figure: 1. discharge head; 11. sealing seat; 12. threaded part; 2. discharge pipe; 21. nut; 22. stop block; 3. upper barrier structure; 31. sealing member; 311. piston member; 312. receiving groove; 313. discharge hole; 314. sealing head; 315. sealing ring; 32. elastic member; 33. stop ring convex; 4. lower barrier structure; 41. rice-shaped opening. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0025] Reference Figures 1-5 This is an embodiment of the utility model, which discloses a double anti-drip device for the feeding head of a filling machine. The anti-drip device is used to further optimize the sealing performance of the existing feeding pipe 2 to prevent residual material from dripping onto the bottle body through the feeding head 1, causing problems such as poor sealing of the screw cap and blurred laser coding. Specifically, the device includes a feeding pipe 2 detachably connected to the bottom of the feeding head 1:

[0026] An upper barrier structure 3 and a lower barrier structure 4 are respectively provided at the upper end and the lower end of the discharge pipe 2;

[0027] The upper barrier structure 3 includes a sealing member 31 movably connected between the discharge head 1 and the discharge pipe 2 . The sealing member 31 is used to seal the bottom opening of the discharge head 1 . An elastic member 32 is also provided between the discharge pipe 2 and the sealing member 31 .

[0028] In some embodiments, the sealing member 31 of the present invention includes a piston member 311, and the piston member 311 is made of polytetrafluoroethylene. The outer side of the piston member 311 slides in a sealed manner with the inner hole of the feeding pipe 2. A receiving groove 312 is further provided at one end of the piston member 311, and one end of the elastic member 32 is placed in the receiving groove 312.

[0029] At least one discharge hole 313 is further provided on the outer periphery of the piston member 311 . Preferably, the discharge hole 313 in this embodiment is configured as a rectangular hole. In addition, four discharge holes 313 are provided at intervals in this embodiment.

[0030] On the basis of the above embodiment, in this embodiment, the end of the piston 311 away from the receiving groove 312 is indented to form a sealing head 314, and a sealing ring 315 is sleeved on the outer side of the sealing head 314;

[0031] A sealing seat 11 adapted to the head 314 is provided in the bottom opening of the blanking head 1. The head 314 is plugged into the sealing seat 11 to achieve sealing and prevent residual material from dripping. In addition, the design of the sealing ring 315 further optimizes the plug-in sealing between the two. As a preferred embodiment, the sealing ring 315 described in this embodiment is an O-ring.

[0032] Furthermore, the elastic member 32 is a spring. A stop ring protrusion 33 is fixedly installed inside the blanking pipe 2. The other end of the spring abuts above the stop ring protrusion 33. The provided stop ring protrusion 33 is used to position the bottom of the spring to prevent the spring from moving inside the blanking pipe 2.

[0033] In some embodiments, the lower barrier structure 4 in the present invention includes a silica gel plug inserted at the bottom end of the blanking pipe 2. The silica gel plug is tightly inserted inside the blanking pipe 2. The silica gel plug has a circular tubular structure with one end sealed. A cross-shaped opening 41 is formed on the end face of the silica gel plug. Multiple membrane flaps are formed between the cross-shaped openings 41. The cross-shaped opening 41 is arranged on the above-mentioned sealing surface. That is, when normal blanking occurs, the thrust of the material deforms the membrane flaps of the silica gel plug to discharge the material. After the blanking is completed, the membrane flaps reset to complete further stop and sealing, thus forming the second anti-drip effect at the lower end.

[0034] In addition, the bottom of the blanking head 1 in the present invention has a threaded portion 12. A nut 21 is slidably connected to the outside of the blanking pipe 2. The nut 21 is blocked by a stop block 22 on the outside of the blanking pipe 2. The nut 21 is threadedly connected to the threaded portion 12. In the present invention, the nut 21 is used to connect to the threaded portion 12. By the nut 21 abutting against the stop block 22, the connection and fixation between the blanking head 1 and the blanking pipe 2 are realized.

[0035] During operation, the empty bottles are separated by the screw and enter the filling machine. The photoelectric eye detects the bottles and opens the rotary valve for feeding. The material moves by squeezing the seal 31 under its own gravity pressure. At this time, the spring contracts. After the filling is completed, the rotary valve closes, and the seal 31 inside the blanking head 1 has no material pressure, and the spring automatically closes the seal 31 to prevent the remaining material inside from dripping. A silica gel plug is installed at the outlet position of the blanking pipe 2 to secondarily block the remaining material, ensuring that there is no residue at the blanking port after filling. The filled bottled products enter the subsequent capping process. The design is novel, the structure is simple, the cost is low, and it is energy-saving and environmentally friendly.

[0036] In summary, in the present invention, by designing the upper barrier structure 3 and the lower barrier structure 4 inside the blanking pipe 2, a two-way anti-drip protection is formed inside the blanking pipe 2. The overall structure does not require an external control source and can be opened only by relying on the weight of the material. The structural design is simple and reasonable, ensuring that there is no residue below the blanking pipe 2 after filling, keeping the bottle cap clean, and improving the qualification rate of capping and laser coding of bottled products.

[0037] The above are only the preferred specific embodiments of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution of the present utility model and its inventive concept, makes equivalent substitutions or changes, and should be covered within the protection scope of the present utility model.

Claims

1. A double anti-drip device for the material feeding head of a filling machine, characterized in that, include: The discharge pipe (2) is detachably connected to the bottom of the discharge head (1): An upper barrier structure (3) and a lower barrier structure (4) are respectively provided at the upper end and the lower end of the discharge pipe (2); The upper barrier structure (3) includes a sealing member (31) movably connected between the discharge head (1) and the discharge pipe (2), and the sealing member (31) is used to seal the bottom opening of the discharge head (1). An elastic member (32) is also provided between the discharge pipe (2) and the sealing member (31).

2. The dual anti-drip device for the material discharging head of a filling machine according to claim 1, wherein: The sealing member (31) includes a piston member (311), and a receiving groove (312) is provided at one end of the piston member (311), and one end of the elastic member (32) is placed in the receiving groove (312); At least one discharge hole (313) is further provided on the outer periphery of the piston member (311).

3. The dual anti-drip device for the material discharging head of a filling machine according to claim 2, wherein: The end of the piston member (311) facing away from the receiving groove (312) is indented to form a sealing head (314), and a sealing ring (315) is sleeved on the outer side of the sealing head (314); A sealing seat (11) adapted to the sealing head (314) is provided in the bottom opening of the blanking head (1).

4. A double anti-drip device for the material discharging head of a filling machine according to any one of claims 1-3, characterized in that: The elastic member (32) is a spring, and a stop ring protrusion (33) is fixedly installed on the inner side of the discharge tube (2), and the other end of the spring abuts against the upper side of the stop ring protrusion (33).

5. A double anti-drip device for the material discharging head of a filling machine according to claim 1, characterized in that: The lower barrier structure (4) comprises a silicone plug inserted into the bottom end of the discharge pipe (2), and a rice-shaped opening (41) is provided on the end surface of the silicone plug.

6. The double anti-drip device for the material discharging head of a filling machine according to claim 1, characterized in that: The bottom of the discharge head (1) has a threaded portion (12), and a nut (21) is slidably connected to the outside of the discharge pipe (2). The nut (21) is stopped by a stop block (22) on the outside of the discharge pipe (2), and the nut (21) is threadedly connected to the threaded portion (12).

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