High-precision stainless steel flow valve for food packaging machinery

Abstract

The utility model belongs to the technical field of food packaging, and particularly relates to a high-precision stainless steel flow valve for food packaging machinery, which comprises an injection barrel and a flow control shaft, a temporary storage cavity is formed between a canning head and a plug which are arranged on the injection barrel, and a feeding hole and an air tap are arranged on the injection barrel at the temporary storage cavity. The flow control shaft piece is arranged in the material injection barrel, a plugging head and a limiting plugging block are arranged on a screw rod arranged at one end of the flow control shaft piece, an adjusting air bag is arranged between the plugging head and the limiting plugging block, and the adjusting air bag is communicated with the air nozzle through an air pipe. According to the utility model, the adjusting air bag is arranged on the flow control shaft piece in the material injection barrel to flexibly adjust the volume of the temporary material storage cavity, and the volume of the adjusting air bag is adjusted by inflating and deflating the adjusting air bag, so that the flexible adjustment of the volume of the temporary material storage cavity is realized, the use convenience is improved, and the use range is expanded; and wide-range popularization and application can be realized.

Description

Technical Field

[0001] This utility model relates to the field of food packaging technology, specifically a high-precision stainless steel flow valve for food packaging machinery. Background Technology

[0002] In today's rapidly developing food industry, the performance of food packaging machinery plays a crucial role in the quality, efficiency, and cost control of food production. As consumers become increasingly focused on food quality and safety, food production companies are placing more stringent demands on material measurement accuracy and hygiene standards during the packaging process.

[0003] In the operation of food packaging machinery, flow valves, as core components for precisely controlling the material delivery rate, directly affect the quality and stability of packaged products. For example, in the packaging of liquid sauces, precise control of the sauce flow rate is necessary to ensure consistent sauce content in each package, avoiding over- or under-packaging, which not only affects the product's sales image but may also lead to material waste or increased costs. Similarly, in packaging granular foods such as potato chips and nuts, precise control of the material flow rate is also required to ensure that the weight of each bag meets standards, enhancing the product's market competitiveness.

[0004] A search revealed an edible oil filling machine with Chinese patent application number 202022169227.2, comprising a frame and a filling assembly capable of adjusting the filling flow rate. The filling assembly includes an oil injection cylinder and a flow control assembly disposed within the inner cavity of the oil injection cylinder. The lower end of the oil injection cylinder is provided with a conical filling head, the inner cavity of which is a conical cavity, and the lower end of the conical cavity has a filling hole. The flow control assembly includes a flow control shaft and an oil seal sleeved outside the lower end of the flow control shaft. The outer diameter of the oil seal is larger than the diameter of the filling hole, and the oil seal is disposed within the conical cavity. A drive mechanism is also included to move the flow control shaft up and down within the oil injection cylinder. During the edible oil filling process, a speed reduction adjustment is adopted, so that the filling speed is lower when the edible oil is almost full, reducing the occurrence of oil splashing.

[0005] However, in the above technical solution, the volume of the temporary material storage cavity inside the filling cylinder used for filling materials cannot be flexibly adjusted according to actual usage needs, making it inconvenient to use. Utility Model Content

[0006] (a) Technical problems to be solved

[0007] To address the shortcomings of existing technologies, this utility model provides a high-precision stainless steel flow valve for food packaging machinery, which solves the problem that the temporary material storage cavity inside the filling cylinder cannot be flexibly adjusted according to actual usage needs, making it inconvenient to use.

[0008] (II) Technical Solution

[0009] To achieve the above objectives, this utility model specifically adopts the following technical solution:

[0010] A high-precision stainless steel flow valve for food packaging machinery includes an injection cylinder and a flow control shaft. A temporary storage chamber is formed between a filling head and a plug mounted on the injection cylinder. An inlet and an air nozzle are provided on the injection cylinder at the temporary storage chamber location. The flow control shaft is installed in the injection cylinder. A sealing head and a limiting block are mounted on a screw at one end of the flow control shaft. An adjusting air bladder is installed between the sealing head and the limiting block. The adjusting air bladder is connected to the air nozzle through an air pipe.

[0011] Furthermore, the end of the injection cylinder away from the filling head is fixedly connected to the drive component frame of the flow control shaft. The drive component is connected to one end of the flow control shaft. The plug is provided with a through hole for sliding through the flow control shaft. A sealing ring is placed between the through hole and the side wall of the shaft. The filling head is provided with a discharge port.

[0012] The side of the plug that contacts the limiting block and the side of the filling head that contacts the sealing head are both provided with sealing grooves, and the sealing grooves fit into the corresponding sealing head and limiting block.

[0013] Furthermore, a baffle is provided between the flow control shaft and the screw, and the plug head is threadedly connected to the screw through a threaded hole, the limiting plug is threadedly connected to the screw through a threaded hole, and a sealing ring is placed between one end of the limiting plug and the baffle;

[0014] The first connecting groove on the sealing head and the second connecting groove on the limiting block fit into the connecting seat at the end of the adjusting airbag. The connecting seat is fixedly fitted into the first connecting groove and the second connecting groove at the corresponding position and is sealed.

[0015] The tube seat on the regulating airbag is connected to the deformation cavity inside, and the tube seat is connected to one end of the air tube, while the other end of the air tube is connected to the air nozzle.

[0016] (III) Beneficial Effects

[0017] Compared with the prior art, this utility model provides a high-precision stainless steel flow valve for food packaging machinery, which has the following advantages:

[0018] This invention involves installing an adjusting airbag on the flow control shaft inside the injection cylinder to flexibly adjust the volume of the temporary material storage chamber. The volume of the adjusting airbag is adjusted by inflating or deflating it, thereby achieving flexible adjustment of the volume of the temporary material storage chamber, improving ease of use, expanding the scope of application, and enabling widespread adoption. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a cross-sectional view of the injection cylinder in this utility model;

[0021] Figure 3 This is a schematic diagram of the flow control shaft in this utility model;

[0022] Figure 4 This is a cross-sectional view of the adjustable airbag in this utility model.

[0023] In the diagram: 1. Injection cylinder; 101. Feed hole; 102. Air nozzle; 103. Temporary storage chamber; 104. Filling head; 105. Plug; 2. Flow control shaft; 201. Sealing head; 2011. Threaded hole; 2012. First connecting groove; 202. Adjusting air bag; 2021. Air pipe; 2022. Pipe seat; 2023. Deformation chamber; 2024. Connecting seat; 203. Limiting block; 2031. Threaded through hole; 2032. Second connecting groove; 204. Sealing ring; 205. Screw; 206. Baffle. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Example

[0026] like Figure 1 , Figure 2 , Figure 3 and Figure 4As shown in one embodiment of this utility model, a high-precision stainless steel flow valve for food packaging machinery includes an injection cylinder 1 and a flow control shaft 2. A temporary storage chamber 103 is formed between a filling head 104 and a plug 105 mounted on the injection cylinder 1 for temporarily storing materials to be filled. The injection cylinder 1 at the location of the temporary storage chamber 103 is provided with an inlet hole 101 and an air nozzle 102, facilitating the smooth injection of materials into the temporary storage chamber 103 through the inlet hole 101 for subsequent smooth filling. Simultaneously, the air nozzle 102 facilitates communication with an adjusting air bladder 202, injecting gas into the adjusting air bladder 202 to regulate the flow of gas. The volume of the flow control shaft 2 is adjusted to flexibly adjust the volume of the temporary storage chamber 103. The flow control shaft 2 is placed in the injection cylinder 1. A plug head 201 and a limiting block 203 are installed on the screw 205 at one end of the flow control shaft 2, which facilitates the stable installation of the two onto the flow control shaft 2. An adjusting air bag 202 is placed between the plug head 201 and the limiting block 203, which facilitates the stable installation of the adjusting air bag 202, so that it can be stably used in conjunction with the flow control shaft 2. The adjusting air bag 202 is connected to the air nozzle 102 through the air pipe 2021, which facilitates the smooth inflation and deflation of the adjusting air bag 202, making it convenient to use.

[0027] like Figure 1 and Figure 2 As shown, in some embodiments, the end of the injection cylinder 1 away from the filling head 104 is fixedly connected to the drive component frame of the flow control shaft 2. The drive component is connected to one end of the flow control shaft 2 for transmission, so that the flow control shaft 2 can be driven by the drive component during use, so that it can move smoothly in the injection cylinder 1, so that the outlet of the injection cylinder 1 can be opened to discharge material or closed to ensure smooth use. The plug 105 is provided with a through hole for sliding through the flow control shaft 2 to ensure that the flow control shaft 2 can move smoothly in the injection cylinder 1. A sealing ring is placed between the through hole and the side wall of the shaft to prevent material leakage at the connection between the two during use. The filling head 104 is provided with an outlet to facilitate the smooth discharge of material in the temporary storage chamber 103.

[0028] Sealing grooves are provided on the side of the plug 105 that contacts the limiting plug 203 and on the side of the filling head 104 that contacts the sealing head 201. The sealing grooves fit into the corresponding sealing head 201 and limiting plug 203, ensuring that when the sealing head 201 contacts the filling head 104, it can stably seal the outlet on the filling head 104. When separated, it opens the outlet on the filling head 104. At the same time, after the limiting plug 203 contacts the plug 105, it restricts the movement path of the flow control shaft 2 to ensure stable use.

[0029] like Figure 1 , Figure 3 and Figure 4 As shown, in some embodiments, a baffle 206 is provided between the flow control shaft 2 and the screw 205, and the plug head 201 is threadedly connected to the screw 205 through the threaded hole 2011. The limiting block 203 is threadedly connected to the screw 205 through the threaded through hole 2031, and a sealing ring 204 is placed between one end of the limiting block 203 and the baffle 206, so as to facilitate the stable installation of the plug head 201 and the limiting block 203 onto the screw 205. At the same time, the sealing ring 204 is used to seal the connection between the limiting block 203 and the baffle 206 to ensure stable use.

[0030] The first connecting groove 2012 on the sealing head 201 and the second connecting groove 2032 on the limiting block 203 fit into the connecting seat 2024 at the end of the regulating airbag 202. The connecting seat 2024 is fixedly fitted into the first connecting groove 2012 and the second connecting groove 2032 at the corresponding positions and is sealed. This facilitates the stable installation of the regulating airbag 202 between the sealing head 201 and the limiting block 203 using the connecting seat 2024, ensuring stable cooperation between them. At the same time, the regulating airbag 202 is also stably installed on the flow control shaft 2. During use, the volume of the temporary storage chamber 103 can be adjusted according to actual usage requirements to meet usage needs and improve ease of use.

[0031] The tube seat 2022 on the regulating airbag 202 is connected to the deformation cavity 2023 inside. The tube seat 2022 is connected to one end of the air pipe 2021, and the other end of the air pipe 2021 is connected to the air nozzle 102. This allows for convenient inflation and deflation of the regulating airbag 202 using the air pipe 2021, and adjustment of the volume of the regulating airbag 202. This enables flexible adjustment of the volume of the temporary storage cavity 103. At the same time, the air pipe 2021 is a soft pipe that can deform appropriately with the movement of the flow control shaft 2, ensuring smooth operation.

[0032] In use, the air pump and the pipeline equipped with the control solenoid valve for charging and discharging are connected to the air nozzle 102, and the conveying pipeline is connected to the feed port 101. When the food is being canned, the material is injected from the conveying pipeline into the temporary storage chamber 103 in the filling cylinder 1. Then, the drive component drives the flow control shaft 2 to move in the filling cylinder 1, separating the sealing head 201 from the filling head 104 and opening the discharge port on the filling head 104, so that the material in the temporary storage chamber 103 can be discharged smoothly and enter the packaging bottle to complete the canning. Then, the flow control shaft 2 can be reset to start the next canning operation.

[0033] When the volume of the temporary storage chamber 103 needs to be adjusted, the air pump inflates the regulating air bag 202 through the air pipe 2021, causing the regulating air bag 202 to inflate and thus change the volume of the temporary storage chamber 103. The adjustment amount is controlled by the inflation amount to complete the adjustment operation. At the same time, the air can be released through the solenoid valve on the pipeline to expel the gas in the regulating air bag 202, thereby ensuring the smooth completion of the adjustment operation.

[0034] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A high precision stainless steel flow valve for food packaging machinery comprising a filling cylinder (1) and a flow control shaft member (2), characterized in that: The temporary storage cavity (103) is formed between the canning head (104) and the plug (105) arranged on the injection cylinder (1), the injection cylinder (1) at the temporary storage cavity (103) is provided with a feeding hole (101) and an air nozzle (102), and the flow control shaft member (2) is arranged in the injection cylinder (1), the screw rod (205) provided at one end of the flow control shaft member (2) is arranged with a blocking head (201) and a limiting block (203), the adjusting air bag (202) is arranged between the blocking head (201) and the limiting block (203), and the adjusting air bag (202) is communicated with the air nozzle (102) through the air pipe (2021).

2. A high precision stainless steel flow valve for food packaging machinery as claimed in claim 1, wherein: The injection cylinder (1) is fixedly connected at one end away from the canning head (104) to the driving component frame body of the flow control shaft member (2), the driving component is in transmission connection with one end of the flow control shaft member (2), the plug (105) is provided with a through hole in which the flow control shaft member (2) is slidably inserted, a sealing ring is arranged between the through hole and the side wall of the shaft body, and the canning head (104) is provided with a discharge port.

3. A high precision stainless steel flow valve for food packaging machinery as claimed in claim 2, wherein: The plug (105) and the limiting block (203) are in contact with each other, and the canning head (104) and the blocking head (201) are in contact with each other, and the plug (105) and the limiting block (203) are provided with a blocking groove, and the blocking groove is matched with the corresponding blocking head (201) and limiting block (203).

4. A high precision stainless steel flow valve for food packaging machinery as claimed in claim 1, wherein: The flow control shaft member (2) and the screw rod (205) are provided with a baffle (206), the blocking head (201) is threadedly connected to the screw rod (205) through a threaded hole (2011), the limiting block (203) is threadedly connected to the screw rod (205) through a threaded hole (2031), and the limiting block (203) is provided with a blocking ring (204) between one end and the baffle (206).

5. A high precision stainless steel flow valve for food packaging machinery as claimed in claim 4, wherein: The first connecting groove (2012) provided on the blocking head (201) and the second connecting groove (2032) provided on the limiting block (203) are matched with the connecting seat (2024) provided at the end of the adjusting air bag (202), the connecting seat (2024) is fixedly fitted in the first connecting groove (2012) and the second connecting groove (2032) at the corresponding position and is in sealed connection.

6. A high precision stainless steel flow valve for food packaging machinery as claimed in claim 5, wherein: The pipe seat (2022) provided on the adjusting air bag (202) is communicated with the deformation cavity (2023) provided inside, the pipe seat (2022) is communicated with one end of the air pipe (2021), and the other end of the air pipe (2021) is communicated with the air nozzle (102).

Images