Anti-dripping backflow connector of hot material oil filling equipment

Abstract

The utility model discloses an anti-dripping backflow connector for hot material oil filling equipment, which comprises an outer shell, a piston, a sleeve, an upper support plate, a lower support plate, a guide sleeve, a guide rod, a spring, an upper joint and a lower joint. The upper end and the lower end of the sleeve are fixedly installed on the upper supporting plate and the lower supporting plate respectively, and the piston is installed in the outer shell in a sliding sealing mode and further installed on the sleeve in a sliding sealing and sleeving mode. Under the condition that filling equipment is changed or replaced, the backflow connector can be additionally arranged on a filling pipeline of the filling equipment, the backflow connector has the advantages of being convenient to install and high in applicability, hot material oil liquid in the lower connector and a follow-up pipeline is sucked upwards and flows back through upward resetting of the piston, and therefore the backflow of the hot material oil liquid is avoided. The hot material oil liquid can be prevented from dripping on the packaging bag after single filling is completed, an operator can move away the filled packaging bag without waiting, the tool effect is improved, and the problem of misoperation of the operator is avoided.

Description

Technical Field

[0001] This utility model belongs to the field of food filling technology, and in particular relates to an anti-drip backflow connector for hot material oil filling equipment. Background Technology

[0002] This hot material oil filling equipment is a new type of filling device that uses a high-precision micro magnetic pump and pump speed and working time to determine the filling volume. The pump head is resistant to acids and alkalis and corrosion; it has a wide range of applications and can fill almost all flowing liquids. Its structure is simple and easy to operate. The discharge nozzle can be extended, and the hose can be moved arbitrarily during filling, meeting filling capacity requirements from 5ml to unlimited volumes, without being limited by filling capacity. It is a reliable and durable filling device. However, this hot material oil filling equipment has a problem with liquid dripping after a single filling. To avoid liquid dripping onto the packaging bag, the operator needs to wait 2-3 seconds before removing the filled bag. This not only affects operational efficiency but also causes inconsistencies in operation. If the operator forgets to wait 2-3 seconds before removing the packaging bag, liquid dripping onto the packaging bag is likely to occur. Summary of the Invention

[0003] The technical problem to be solved by this utility model is to provide a connector that allows hot material oil liquid to flow back after a single filling, thereby preventing hot material oil liquid from dripping onto the filled packaging bag.

[0004] To solve the above-mentioned technical problems, the present invention is achieved through the following technical solution: a drip-proof backflow connector for hot material oil filling equipment, comprising a housing, a piston, a sleeve, an upper support plate, a lower support plate, a guide sleeve, a guide rod, a spring, an upper connector, and a lower connector. The upper and lower support plates are fixedly installed on the inner wall of the housing. Both the upper and lower support plates are provided with through holes. The top of the sleeve is a sealing structure. The upper and lower ends of the sleeve are respectively fixedly installed on the upper and lower support plates. The piston is slidably and sealingly installed in the housing. The piston is also slidably and sealingly sleeved on the sleeve. The sleeve is provided with an opening. Two guide sleeves are symmetrically and fixedly installed at the bottom of the housing. The top opening of the guide sleeve extends beyond the lower support plate. The upper end of the guide rod is fixedly connected to the piston. The lower end of the guide rod is slidably installed in the guide sleeve. The spring is sleeved on the guide rod. The upper and lower ends of the spring act on the piston and the guide sleeve, respectively. The upper and lower connectors are sealed and fixedly installed on the upper and lower parts of the housing.

[0005] Preferably, the top of the sleeve is provided with a spherical structure.

[0006] Preferably, the outer end inlets of the upper and lower connectors are configured with an angled structure.

[0007] Preferably, 6-8 through holes are arranged in a ring array on the upper and lower support plates.

[0008] Compared with the prior art, the advantages of this utility model are: this reflux connector can be added to the filling pipeline of the filling equipment when the filling equipment is changed or replaced, and has the advantages of convenient installation and strong applicability. By resetting the piston upward, the hot material oil liquid in the lower connector and subsequent pipeline is drawn back, which can prevent the hot material oil liquid from dripping onto the packaging bag after a single filling. The operator can remove the filled packaging bag without waiting, which improves the tooling effect and avoids the problem of operator misoperation. Attached Figure Description

[0009] The present invention will be further described below with reference to the accompanying drawings.

[0010] Figure 1 This is a schematic diagram of the internal structure of this utility model. Detailed Implementation

[0011] The present invention will now be described in detail with reference to specific embodiments:

[0012] like Figure 1 The illustrated anti-drip backflow connector for hot material oil filling equipment includes a housing 1, a piston 2, a sleeve 3, an upper support plate 4, a lower support plate 5, a guide sleeve 6, a guide rod 7, a spring 8, an upper connector 91, and a lower connector 92. The upper support plate 4 and the lower support plate 5 are both fixedly installed on the inner wall of the housing 1. Both the upper support plate 4 and the lower support plate 5 have through holes. The top of the sleeve 3 has a sealing structure, and the upper and lower ends of the sleeve 3 are respectively fixedly installed on the upper support plate 4 and the lower support plate 5. The piston 2 is slidably and sealingly installed on the housing. Inside the housing 1, the piston 2 is also slidably and sealingly fitted onto the sleeve 3. The sleeve 3 is provided with an opening 31. Two guide sleeves 6 are symmetrically and fixedly installed at the bottom of the housing 1. The top opening of the guide sleeve 6 extends beyond the lower support plate 5. The upper end of the guide rod 7 is fixedly connected to the piston 2. The lower end of the guide rod 7 is slidably installed inside the guide sleeve 6. The spring 8 is fitted onto the guide rod 7. The upper and lower ends of the spring 8 act on the piston 2 and the guide sleeve 6 respectively. The upper connector 91 and the lower connector 92 are sealed and fixedly installed on the upper and lower parts of the housing 1.

[0013] The top of the sleeve 3 is provided with a spherical structure, which can avoid causing resistance to the flow of liquid.

[0014] The outer inlet of the upper connector 91 and the lower connector 92 is designed with an angled structure to facilitate the connection of the pipeline with the upper connector 91 and the lower connector 92.

[0015] The through holes are arranged in a ring array of 6-8 on the upper support plate 4 and the lower support plate 5, which can ensure uniform liquid flow and avoid tilting caused by uneven pressure on the piston 2.

[0016] The operator presses the pedal to start the filling equipment. Under the pressure of the filling equipment, the hot material oil enters the outer shell 1 through the upper connector 91, pushing the piston 2 to move downward against the elastic force of the spring 8. At this time, the guide rod 7 moves downward along the guide sleeve 6. When the opening 31 is exposed from the top of the piston 2, the hot material oil enters the lower connector 92 and subsequent pipelines through the opening 31 to complete the filling operation into the packaging bag. After the hot material oil is filled once, the filling equipment stops running. The piston 2 moves upward under the elastic force of the spring 8, and the opening 31 returns to the piston 2 to seal it. As the piston 2 moves upward, its lower liquid storage space area increases, which draws the hot material oil liquid in the lower connector 92 and subsequent pipelines upward and back, thereby avoiding the problem of hot material oil liquid dripping.

Claims

1. A drip backflow resistant connector for hot material oil filling equipment, characterized by: The utility model relates to a piston pump, including outer shell (1), piston (2), sleeve (3), upper support plate (4), lower support plate (5), guide sleeve (6), guide rod (7), spring (8), upper joint (91) and lower joint (92), upper support plate (4), lower support plate (5) are fixedly installed on the inner wall of outer shell (1), and the upper support plate (4) is provided with the through -hole on upper support plate (4), lower support plate (5), the sleeve (3) top is the obturation structure, and the sleeve (3) upper and lower ends are fixedly installed on upper support plate (4) respectively, lower support plate (5), piston (2) is slidably sealedly installed in outer shell (1), and piston (2) is also slidably sealedly sleevedly installed on sleeve (3), the sleeve (3) is provided with opening (31), two guide sleeves (6) are symmetrical and fixedly installed at the bottom of outer shell (1), the top opening of guide sleeve (6) exceeds lower support plate (5), the upper end of guide rod (7) is fixedly connected with piston (2), the lower end of guide rod (7) is slidably installed in guide sleeve (6), spring (8) is sleevedly installed on guide rod (7), and the upper and lower ends of spring (8) are respectively used on piston (2), guide sleeve (6), upper joint (91) and lower joint (92) are sealedly fixedly installed on the upper and lower portions of outer shell (1).

2. The hot fill oil fill equipment anti-drip backflow connector of claim 1, wherein: The top of the sleeve (3) is provided with a spherical surface structure.

3. The hot fill oil fill equipment anti-drip backflow connector of claim 1, wherein: The outer end entrance of the upper joint (91) and the lower joint (92) is provided with an inclined angle structure.

4. The hot fill oil fill equipment anti-drip backflow connector of claim 1, wherein: The through holes on the upper support plate (4) and the lower support plate (5) are arranged in an annular array of 6-8.

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