Material sealing structure of flat plate filling machine

Abstract

The utility model discloses a material sealing structure of a flat plate filling machine, and belongs to the technical field of filling. In order to solve the problems that in the production process, an injection rod needs to act frequently, the injection rod is prone to being abraded to generate iron impurities, the product quality is affected, meanwhile, a material sealing mode is a single sealing ring material sealing mode of the injection rod, and material leakage is prone to occurring due to long-time up-and-down movement, the injection rod is inserted into a nylon sleeve in a sliding mode, and a groove is formed in the middle of the nylon sleeve; a groove is formed in the nylon sleeve, a first O-shaped sealing ring is arranged in the groove, a second O-shaped sealing ring is arranged in the middle of the material injection rod, and the material injection rod is processed into a conical end from a cylindrical shape, so that the contact surfaces of the material injection rod and the material nozzle are consistent, and the material injection rod is prevented from being abraded; the first O-shaped sealing ring and the second O-shaped sealing ring of the material injection rod form double sealing, material leakage after long-time action is avoided, in the actual working process, the first O-shaped sealing ring and the second O-shaped sealing ring conduct double sealing on the interior of the nylon sleeve, and material leakage is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of filling, in particular to a material sealing structure of a flat filling machine. Background Art

[0002] The flat plate filling machine is a liquid filling machine. Its working principle is to use a cylinder to drive a piston to extract and pump out materials, use a one-way valve to control the flow of materials, and use a reed switch to control the stroke of the cylinder to adjust the filling volume. This filling machine is usually suitable for filling various liquid materials. The flat plate filling machine has the advantages of compact structure, simple operation, stable operation, convenient maintenance, high accuracy, and easy adjustment of filling volume. When adjusting the filling volume, you only need to adjust the piston stroke, which is convenient and quick.

[0003] In the production process of the flat filling machine, the filling method is that the cylinder drives the injection rod to move up and down in the nylon sleeve. The cylinder retracts to fill the material and extends to seal the material. The sealing method is to extend the cylinder and use the injection rod head to contact the material nozzle to seal the material. In fact, there are still the following problems in actual operation:

[0004] During the production process, the injection rod needs to move frequently. Since the head of the injection rod is cylindrical, it is easy for the injection rod to wear and produce iron impurities, affecting product quality. At the same time, the sealing method is a single sealing ring for the injection rod, and long-term up and down movements are prone to leakage. Utility Model Content

[0005] The utility model aims to provide a material sealing structure for a flat-plate filling machine, which can solve the problems in the prior art.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a sealing structure of a flat-plate filling machine, comprising a nylon sleeve and a filling rod, wherein the filling rod is slidably inserted into the interior of the nylon sleeve;

[0007] An inner channel is provided in the middle of the nylon sleeve, and the inner channel is a cylindrical channel. The injection rod passes through the nylon sleeve through the inner channel. A groove is provided inside the inner channel, and the groove is annular in structure as a whole. A first O-type sealing ring is arranged inside the groove.

[0008] Preferably, the injection rod comprises a rod body, and a second O-ring is arranged in the middle of the rod body.

[0009] Preferably, the shaft is in the form of a cylindrical rod as a whole, the top end of the shaft is arranged as a connecting portion, and the bottom end of the shaft is arranged as a tapered end.

[0010] Preferably, one end of the connecting portion is connected to the cylinder shaft of the cylinder.

[0011] Preferably, one end of the tapered end passes through the inner passage and extends outward from the bottom of the nylon sleeve.

[0012] Preferably, the second O-ring is frictionally connected to the inner wall of the inner channel, and the first O-ring is frictionally connected to the outer wall of the shaft.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0014] 1. The injection rod of the utility model is processed from a cylindrical shape to a tapered end, so that the contact surface of the injection rod and the nozzle is consistent, which is more adaptable in actual use, thereby avoiding the problem that the injection rod needs to be frequently moved, causing wear and tear to produce iron impurities, affecting product quality, and improving the service life of the equipment while ensuring that product quality is not affected.

[0015] 2. The utility model processes a groove inside the nylon sleeve, adds a first O-ring inside the groove, and forms a double seal with the second O-ring of the injection rod to avoid leakage after long-term action. In actual work, the first O-ring and the second O-ring perform double sealing on the inside of the nylon sleeve, thereby avoiding leakage caused by long-term up and down action when sealing the material, and improving the sealing performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the internal structure of the nylon sleeve of the utility model;

[0018] Figure 3 This is a schematic diagram of the injection rod structure of the utility model;

[0019] Figure 4 It is a schematic diagram of the double sealing structure of the utility model.

[0020] In the figure: 1, nylon sleeve; 11, inner channel; 12, groove; 13, first O-ring; 2, injection rod; 21, rod body; 22, second O-ring; 23, tapered end; 24, connecting part. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] In order to solve the problem that the injection rod needs to move frequently during the production process, the injection rod head is cylindrical, which is easy to cause the injection rod to wear and produce iron impurities, affecting product quality. At the same time, the sealing method is the injection rod single sealing ring sealing, and the long-term up and down movement is easy to leak the technical problem. Please refer to Figure 1-4 , this utility provides the following technical solutions:

[0023] A sealing structure for a flat-plate filling machine comprises a nylon sleeve 1 and a filling rod 2, wherein the filling rod 2 is slidably inserted into the interior of the nylon sleeve 1;

[0024] The injection rod 2 includes a rod body 21, and a second O-ring 22 is arranged in the middle of the rod body 21. The rod body 21 is a cylindrical rod body as a whole, and the top end of the rod body 21 is arranged as a connecting portion 24, and the bottom end of the rod body 21 is arranged as a tapered end 23. One end of the connecting portion 24 is connected to the cylinder shaft of the cylinder. One end of the tapered end 23 passes through the inner channel 11 and extends outward from the bottom of the nylon sleeve 1. The bottom of the injection rod 2 is processed into a tapered end 23, so that the tapered end 23 can be consistent with the contact surface of the nozzle, which is more adaptable in actual use, thereby avoiding the problem that the injection rod 2 needs to be frequently moved, resulting in wear and tear to produce iron impurities, which affects the product quality. While improving the service life of the equipment, it ensures that the product quality is not affected.

[0025] An inner channel 11 is provided in the middle of the nylon sleeve 1. The inner channel 11 is a cylindrical channel. The injection rod 2 passes through the nylon sleeve 1 through the inner channel 11. A groove 12 is provided inside the inner channel 11. The groove 12 is annular in structure as a whole. A first O-ring 13 is provided inside the groove 12. A second O-ring 22 is frictionally connected to the inner wall of the inner channel 11. A first O-ring 13 is frictionally connected to the outer wall of the rod body 21. The first O-ring 13 is added to the inside of the nylon sleeve 1, so that the inside of the nylon sleeve 1 is upgraded from a single sealing ring seal to a double seal, thereby avoiding leakage caused by long-term up and down movements during sealing, thereby improving the sealing performance.

[0026] The working principle of the above content is as follows: the injection rod 2 is modified, the head is reprocessed, and the cylindrical shape is processed into a conical end 23, so that the contact surface of the injection rod 2 and the nozzle is consistent to avoid wear of the injection rod, the nylon sleeve 1 is processed, and a groove 12 is processed inside the nylon sleeve. A first O-ring 13 is added inside the groove 12 to form a double seal with the second O-ring 22 of the injection rod 2 to avoid leakage after long-term operation. In actual work, the first O-ring 13 and the second O-ring 22 perform double sealing on the inside of the nylon sleeve 1 to avoid leakage.

[0027] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sealing structure for a flat-plate filling machine, comprising a nylon sleeve (1) and a filling rod (2), characterized in that: The injection rod (2) is slidably inserted into the interior of the nylon sleeve (1); an inner channel (11) is provided in the middle of the nylon sleeve (1); the inner channel (11) is a cylindrical channel; the injection rod (2) passes through the nylon sleeve (1) through the inner channel (11); a groove (12) is provided inside the inner channel (11); the groove (12) is annular in structure as a whole; a first O-type sealing ring (13) is provided inside the groove (12).

2. A sealing structure for a flat-plate filling machine according to claim 1, characterized in that: The injection rod (2) comprises a rod body (21), and a second O-type sealing ring (22) is arranged in the middle of the rod body (21).

3. A sealing structure for a flat-plate filling machine according to claim 2, characterized in that: The rod body (21) is in the form of a cylindrical rod body as a whole, the top end of the rod body (21) is arranged as a connecting portion (24), and the bottom end of the rod body (21) is arranged as a conical end head (23).

4. A sealing structure for a flat-plate filling machine according to claim 3, characterized in that: One end of the connecting portion (24) is connected to the cylinder shaft of the cylinder.

5. The sealing structure of a flat-plate filling machine according to claim 3, characterized in that: One end of the tapered end (23) passes through the inner passage (11) and extends outward from the bottom of the nylon sleeve (1).

6. A sealing structure for a flat-plate filling machine according to claim 2, characterized in that: The second O-type sealing ring (22) is frictionally connected to the inner wall of the inner channel (11), and the first O-type sealing ring (13) is frictionally connected to the outer wall of the shaft (21).

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