Anti-blocking feeding pipe of sealing bag film blowing machine

Abstract

The utility model discloses an anti-blocking feeding pipe of a sealing bag film blowing machine, and belongs to the technical field of plastic processing equipment. The feeding pipe comprises a feeding pipe body which comprises a discharging hopper, a machine barrel and a waste hopper, and a screw is arranged in the machine barrel. And the control mechanism comprises a temperature sensor, a pressure sensor, a vibration motor and a driving motor. According to the anti-blocking feeding pipe of the sealing bag film blowing machine, through the segmented heating design, the multiple independent temperature control heating areas are arranged in the machine barrel, it is guaranteed that plastic particles are heated evenly, and blocking caused by uneven melting is prevented. The temperature sensor and the pressure sensor monitor and adjust the heating power and the rotating speed of the screw rod in real time, the optimal conveying state is ensured, the vibration motor assists in conveying, particle accumulation is prevented, the waste hopper is additionally provided with a filter screen and has a condensation function, waste gas, dust and volatile substances are collected, emission of harmful gas is reduced, the workshop environment is improved, and the environment-friendly requirement is met.

Description

Technical Field

[0001] This utility model relates to the field of plastic processing equipment technology, and in particular to a feed pipe for an anti-clogging sealing bag blown film machine. Background Technology

[0002] In the production process of sealed bags, the blown film machine heats and conveys plastic granules to the die head through the feed pipe to form a film. However, the existing feed pipe is prone to blockage during heating and conveying due to uneven melting of plastic granules or accumulation of residues, which affects production efficiency and increases equipment maintenance costs. Existing solutions usually alleviate the blockage problem by increasing heating power or cleaning the pipe regularly, but these methods have limited effectiveness and increase energy consumption and labor costs.

[0003] To address this issue, we propose an anti-clogging feed pipe for a blown film extrusion machine for sealing bags. Utility Model Content

[0004] The purpose of this invention is to provide a non-clogging feed pipe for a blown film extrusion machine for sealing bags. By optimizing the structural design and heating method of the feed pipe, it ensures that the plastic granules melt evenly during the conveying process, effectively preventing clogging, improving production efficiency, and reducing energy consumption and maintenance costs.

[0005] To solve the above technical problems, this utility model provides a feed pipe for an anti-clogging sealing bag blown film machine, including a feed pipe body, a feeding hopper, a machine barrel disposed on one side of the feeding hopper, and a waste hopper disposed on the other side of the feeding hopper, wherein a screw is disposed inside the machine barrel;

[0006] The control mechanism includes multiple temperature sensors, a pressure sensor disposed on one side of the temperature sensors, a vibration motor disposed on the outer wall of the barrel, and a drive motor disposed on the other side of the barrel, wherein the output shaft of the drive motor is connected to a screw.

[0007] Preferably, the feeding hopper, waste hopper, and machine barrel are interconnected, with the material from the feeding hopper preferentially flowing into the machine barrel, and a filter screen is provided at the inlet of the feeding hopper leading to the waste hopper.

[0008] Preferably, the barrel employs segmented heating, comprising multiple heating zones, each with independently controlled temperature and evenly distributed on the outer wall of the barrel.

[0009] Preferably, the heating zone includes a heating belt wrapped around the inner wall of the barrel, the heating belt being heated in segments, and its temperature being independently controlled by the corresponding temperature sensor.

[0010] Preferably, the screw divides the interior of the barrel into spiral-shaped guide channels.

[0011] Preferably, the barrel further includes a discharge port located at its end, the discharge port being provided with filter holes.

[0012] Compared with the prior art, the anti-clogging sealing bag blown film machine feed pipe of this utility model has the following advantages:

[0013] 1. The feed tube barrel features a segmented heating design with multiple independently temperature-controlled heating zones to ensure uniform heating of the plastic granules during conveying. This avoids uneven melting caused by localized overheating or insufficient heating, effectively preventing blockages. Simultaneously, the combination of temperature and pressure sensors allows for real-time monitoring of temperature and pressure changes within the feed tube, enabling timely adjustments to heating power and screw speed to ensure optimal melting and conveying of the plastic granules, thus enhancing the anti-blocking effect.

[0014] 2. The feeding pipe uses a vibrating motor to generate vibration to assist in conveying, which helps the plastic granules maintain fluidity during the conveying process, prevents the granules from accumulating or sticking to the pipe wall, and further reduces the risk of blockage;

[0015] 3. By adding a waste hopper with a filter screen, a condensation function can be added to the waste hopper, which can effectively collect the waste gas, dust and volatile substances generated by heating plastic particles in the barrel, condense and recover harmful substances, reduce the emission of harmful gases and dust, thereby improving the workshop working environment, protecting the health of operators, and meeting environmental protection requirements. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of a feed pipe for an anti-clogging sealing bag blown film machine provided by this utility model;

[0017] Figure 2 This is a schematic diagram of the internal structure of a feed pipe for an anti-clogging sealing bag blown film machine provided by this utility model;

[0018] In the diagram: 1. Feed pipe body; 101. Feed hopper; 102. Barrel; 102a. Heating zone; 102a-1. Heating belt; 102b. Discharge port; 102c. Filter slag hole; 103. Waste hopper; 104. Screw; 105. Filter screen; 106. Guide channel; 2. Control mechanism; 201. Temperature sensor; 202. Pressure sensor; 203. Vibration motor; 204. Drive motor. Detailed Implementation

[0019] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. The advantages and features of the present invention will become clearer from the following description and claims. It should be noted that the drawings are all in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of the present invention.

[0020] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Example

[0022] This utility model provides a clog-resistant feed pipe for a blown film extrusion machine for sealing bags. Please refer to [link / reference]. Figures 1-2 The system includes a feeding pipe body 1, a feeding hopper 101, a barrel 102 disposed on one side of the feeding hopper 101, and a waste hopper 103 disposed on the other side of the feeding hopper 101. A screw 104 is disposed inside the barrel 102. The system also includes a control mechanism 2, which includes multiple temperature sensors 201, a pressure sensor 202 disposed on one side of the temperature sensors 201, a vibration motor 203 disposed on the outer wall of the barrel 102, and a drive motor 204 disposed on the other side of the barrel 102. The output shaft of the drive motor 204 is connected to the screw 104.

[0023] The feeding hopper 101, waste hopper 103, and barrel 102 are interconnected. The material from the feeding hopper 101 is preferentially directed to the barrel 102. A filter screen 105 is provided at the inlet of the feeding hopper 101 leading to the waste hopper 103. The barrel 102 employs segmented heating, including multiple heating zones 102a. Each heating zone 102a has an independently controlled temperature and is evenly distributed on the outer wall of the barrel 102. Each heating zone 102a includes a heating band 102a-1 wound around the inner wall of the barrel 102. The heating band 102a-1 is heated in segments, and its temperature is independently controlled by the corresponding temperature sensor 201. The screw 104 divides the interior of the barrel 102 into spiral-shaped guide channels 106. The barrel 102 also includes a discharge port 102b located at its end, and the discharge port 102b is provided with a filter hole 102c.

[0024] It should be noted that the hopper 101 is used to store plastic granules, such as LDPE granules (low-density polyethylene), LLDPE granules (linear low-density polyethylene), etc. The bottom of the hopper 101 is provided with a discharge port, which preferentially leads to the barrel 102. Specifically, the plastic granules slide into the barrel 102 under the influence of gravity by setting the height. The barrel 102 is provided with a screw inside, and the outer wall of the barrel is provided with multiple heating zones 102a in sections. The waste hopper 103 is located on the other side of the hopper 101 and is connected to the hopper 101 through a filter screen 105.

[0025] Preferably, the waste hopper 103 is externally connected to a waste gas collection port, which is connected to a condensation device to condense the volatile substances in the waste gas, convert them into waste liquid and recycle them into the waste hopper 103. The remaining gas is filtered and then discharged, effectively reducing the emission of harmful gases and protecting the workshop environment.

[0026] Preferably, temperature sensors 201 are disposed on each heating zone 102a on the outer wall of the barrel 102 for real-time monitoring of the temperature of each heating zone 102a. Each heating zone 102a is independently temperature controlled. The heating zone 102a includes a heating belt 102a-1 wrapped around the outer wall of the barrel. The temperature of the heating belt 102a-1 is adjusted in real time by the corresponding temperature sensor 201. The heating belt 102a-1 uses a nickel-chromium alloy heating wire.

[0027] Preferably, the pressure sensor 202 is located inside the barrel 102 to detect pressure changes during the melting and conveying of plastic granules. If the pressure rises abnormally, the control system will automatically adjust the heating power or screw speed to ensure that the plastic granules melt and are conveyed under optimal conditions. The vibration motor 203 is located at the top of the barrel 102 to generate vibration and prevent the accumulation of plastic granules from causing blockage. The drive motor 204 is located on one side of the barrel 102, and the output shaft of the drive motor 204 is connected to the screw 104 to drive the screw 104 to rotate. The screw 104 divides the interior of the barrel 102 into spiral guide channels 106. Under the rotation of the screw 104, the plastic granules are conveyed forward along the guide channels 106 and melted by heat. The design of the screw makes the plastic granules maintain fluidity during the conveying process, and combined with the vibration motor 203, it effectively reduces friction and accumulation between granules.

[0028] In summary, the feed pipe of this anti-clogging sealing bag blown film machine features a segmented heating design with multiple independently temperature-controlled heating zones within the barrel. This ensures uniform heating of the plastic granules during transport, preventing uneven melting due to localized overheating or insufficient heating, thus effectively preventing clogging. Furthermore, the combination of temperature and pressure sensors allows for real-time monitoring of temperature and pressure changes within the feed pipe, enabling timely adjustments to heating power and screw speed to ensure optimal melting and transport of the plastic granules, further enhancing the anti-clogging effect. A vibrating motor provides vibration-assisted transport, helping to maintain the fluidity of the plastic granules during transport and preventing granule accumulation or adhesion to the pipe wall, further reducing the risk of clogging. Additionally, the addition of a waste hopper with a filter screen allows for condensation, effectively collecting waste gas, dust, and volatile substances generated during the heating of the plastic granules within the barrel. This condensation and recovery of harmful substances reduces emissions of harmful gases and dust, improving the workshop working environment, protecting the health of operators, and meeting environmental protection requirements.

[0029] The above description is only a description of the preferred embodiment of the present utility model and is not intended to limit the scope of the present utility model in any way. Any changes or modifications made by those skilled in the art based on the above disclosure shall fall within the protection scope of the claims.

Claims

1. A feed pipe for an anti-clogging sealed bag blown film machine, characterized in that, include: The main body of the feed pipe (1) includes a feeding hopper (101), a barrel (102) disposed on one side of the feeding hopper (101), and a waste hopper (103) disposed on the other side of the feeding hopper (101). A screw (104) is disposed inside the barrel (102). The control mechanism (2) includes multiple temperature sensors (201), a pressure sensor (202) disposed on one side of the temperature sensor (201), a vibration motor (203) disposed on the outer wall of the barrel (102), and a drive motor (204) disposed on the other side of the barrel (102). The output shaft of the drive motor (204) is connected to the screw (104).

2. The anti-clogging sealing bag blown film machine feed pipe as described in claim 1, characterized in that, The feeding hopper (101), waste hopper (103) and barrel (102) are interconnected. The feeding hopper (101) feeds material to the barrel (102) first. A filter screen (105) is provided at the inlet of the feeding hopper (101) leading to the waste hopper (103).

3. The anti-clogging sealing bag blown film machine feed pipe as described in claim 2, characterized in that, The barrel (102) is heated in sections, including multiple heating zones (102a). The heating zones (102a) are independently temperature controlled and are evenly distributed on the outer wall of the barrel (102).

4. The anti-clogging sealing bag blown film machine feed pipe as described in claim 3, characterized in that, The heating zone (102a) includes a heating band (102a-1) wrapped around the inner wall of the barrel (102). The heating band (102a-1) is heated in segments, and its temperature is independently controlled by the corresponding temperature sensor (201).

5. The anti-clogging sealing bag blown film machine feed pipe as described in claim 1, characterized in that, The screw (104) divides the interior of the barrel (102) into spiral guide channels (106).

6. The anti-clogging sealing bag blown film machine feed pipe as described in claim 1, characterized in that, The barrel (102) also includes a discharge port (102b) located at its end, and the discharge port (102b) is provided with a filter hole (102c).

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