A 2600ml rubber barrel screw pump with continuous feeding

Abstract

The utility model relates to high viscosity fluid conveying technical field and disclose a 2600ML glue cylinder nonstop feeding screw rod pump, including first glue cylinder, second glue cylinder, first valve body, second valve body, third valve body, control assembly, screw rod pump body and gas path subassembly, third valve body sets up on control assembly, third valve body has first inlet, second inlet and export, first valve body and second valve body respectively through first inlet and second inlet and connect on third valve body, screw rod pump body sets up on third valve body, and through the input port set up at its bottom and the export of third valve body intercommunication, first glue cylinder sets up on first valve body, second glue cylinder sets up on second valve body, gas path subassembly sets up in the side of control assembly, and through control assembly is communicated with first glue cylinder and second glue cylinder respectively, the scheme simple structure realizes to screw rod pump body continuous feeding.

Description

Technical Field

[0001] This utility model relates to the field of high viscosity fluid transportation technology, specifically to a screw pump that provides continuous feeding of 2600ML rubber cylinders. Background Technology

[0002] Screw pumps are widely used in automated dispensing and potting processes due to their precise metering. However, the large-capacity cartridges (e.g., 2600ml) that continuously supply material require machine shutdown for replacement when depleted, severely impacting production efficiency. Existing dual-cartridge feeding systems typically use a single main air pressure source and an independent switching valve (e.g., a two-position three-way valve) to select which cartridge to pressurize, with a check valve on the main discharge line to prevent backflow. This approach has the following drawbacks: the switching valve, as a critical component, is susceptible to wear and failure, increasing system complexity and potential points of failure; single-point air pressure switching can lead to unstable material supply due to pressure fluctuations during cartridge switching; and the system structure is relatively complex. Therefore, a screw pump with a simple structure and reliable, non-stop feeding capability is needed. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a novel screw pump for non-stop feeding of 2600ML rubber cylinders, which solves the problems of complex feeding structure, easy failure, and large pressure fluctuations when changing cylinders in existing screw pumps.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: A screw pump for continuous supply of adhesive to a 2600ML glue cartridge without stopping the pump is used to continuously supply adhesive to the screw pump body. It includes a first glue cartridge, a second glue cartridge, a first valve body, a second valve body, a third valve body, a control component, a screw pump body, and an air circuit component. The third valve body is disposed on the control component and has a first inlet, a second inlet, and an outlet. The first valve body and the second valve body are respectively connected to the third valve body through the first inlet and the second inlet. The screw pump body is mounted on the third valve body and is connected to the outlet of the third valve body through the inlet located at its bottom. The first rubber tube is disposed on the first valve body, the second rubber tube is disposed on the second valve body, and the air circuit assembly is disposed on the side of the control assembly and is connected to the first rubber tube and the second rubber tube respectively through the control assembly.

[0005] Furthermore, both the first valve body and the second valve body are one-way valves.

[0006] Furthermore, the first and second glue tubes each have a capacity of 2600ML, and the first and second glue tubes are detachably connected to the first and second valve bodies, respectively.

[0007] Furthermore, the third valve body is a three-way valve.

[0008] Furthermore, the upper part of the screw pump body is provided with an output port, the screw pump body is provided with a pump chamber, and the input port and the output port are connected to the pump chamber.

[0009] Furthermore, the pneumatic assembly includes a first pressure-adhesion solenoid valve, a first auxiliary solenoid valve, and a first pressure-adhesion cylinder. The first pressure-adhesion cylinder is disposed on the top of the first glue cylinder, and a first air source inlet is disposed on the side of the first pressure-adhesion cylinder. The first pressure-adhesion solenoid valve and the first auxiliary solenoid valve are both located on the side of the control assembly and are respectively connected to the first air source inlet through air pipes.

[0010] Furthermore, the air pressure output by the air circuit assembly through the first pressure bonding solenoid valve is different from the air pressure output through the first auxiliary solenoid valve.

[0011] Furthermore, the pneumatic assembly also includes a second pressure solenoid valve, a second auxiliary solenoid valve, and a second pressure cylinder. The second pressure cylinder is located at the top of the second glue cylinder, and a second air source inlet is provided on the side of the second pressure cylinder. The second pressure solenoid valve and the second auxiliary solenoid valve are both located on the side of the control assembly and are respectively connected to the second air source inlet through air pipes.

[0012] Furthermore, the control component includes a main air inlet, a first pressure bonding interface, a first auxiliary interface, a second pressure bonding interface, and a second auxiliary interface. The main air inlet is connected to the first pressure bonding interface, the first auxiliary interface, the second pressure bonding interface, and the second auxiliary interface, respectively. The first pressure bonding interface is connected to the first pressure bonding solenoid valve via an air pipe. The first auxiliary interface is connected to the first auxiliary solenoid valve via an air pipe. The second pressure bonding interface is connected to the second pressure bonding solenoid valve via an air pipe. The second auxiliary interface is connected to the second auxiliary solenoid valve via an air pipe.

[0013] Furthermore, the control component includes a PLC controller, which is connected to the pneumatic circuit component.

[0014] Compared to existing technologies, the advantages of this invention, employing the above solution, are its simple structure and suitability for continuously supplying high-viscosity fluid adhesives to a screw pump. A first and second glue cylinder are installed side-by-side, with a first valve body and a second valve body installed at their respective outlets. The first and second valve bodies are connected in parallel via a third valve body, and the outlet of the third valve body is connected to the inlet at the bottom of the screw pump. During feeding, the control component first opens the air passage connecting the air passage assembly to the first glue cylinder, allowing air pressure to act on the first glue cylinder. The adhesive inside the first glue cylinder enters the second glue cylinder from the bottom of the first valve body. The three-valve body allows the adhesive to enter the screw pump body through its outlet and exit from the upper output port. When switching is required, the control component opens the air passage connecting the air passage assembly to the second glue cylinder, and the second glue cylinder begins pressurized feeding. Simultaneously, after a short delay, the air passage connecting the first glue cylinder is cut off, causing the first glue cylinder to depressurize. At this point, the switching is complete, and the operator can replace the depressurized first glue cylinder. After replacement, the operator waits for the next switching command and repeats the cycle. This allows for a continuous and uninterrupted supply of high-viscosity fluid adhesive to the screw pump, demonstrating significant market application value. Attached Figure Description

[0015] Figure 1 This is one of the structural schematic diagrams of a screw pump for continuous feeding of 2600ML glue cylinders according to an embodiment of this utility model; Figure 2 For the present utility model Figure 1 Schematic diagram of the screw pump for non-stop feeding of 2600ML glue cartridges in the embodiment (II); In the diagram, 1 is the first glue cartridge; 11 is the first air source inlet; 2 is the second glue cartridge; 12 is the second air source inlet; 3 is the first valve body; 4 is the second valve body; 5 is the third valve body; 6 is the control component; 61 is the main air source inlet; 62 is the first pressure bonding interface; 63 is the second pressure bonding interface; 64 is the first auxiliary interface; 65 is the second auxiliary interface; 7 is the screw pump body; 71 is the output port; 8 is the air circuit component; 81 is the first pressure bonding cylinder; and 82 is the second pressure bonding cylinder. Detailed Implementation

[0016] To facilitate understanding of this utility model by those skilled in the art, specific embodiments of this utility model are described below with reference to the accompanying drawings. Preferred embodiments of this utility model are shown in the drawings. However, this utility model can be implemented in many different forms and is not limited to the embodiments described in this specification. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.

[0017] It should be noted that when a component is referred to as being "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is referred to as being "connected to" another component, it can be directly connected to the other component or there may be an intervening component. The terms "mounted," "fixed," "connected," "top-side," and similar expressions used in this specification are for illustrative purposes only.

[0018] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of the invention.

[0019] One embodiment of this utility model is as follows: Figure 1 , 2 As shown, the 2600ML glue cartridge non-stop feeding screw pump is used to continuously supply adhesive to the screw pump body 7. It includes a first glue cartridge 1, a second glue cartridge 2, a first valve body 3, a second valve body 4, a third valve body 5, a control component 6, a screw pump body 7, and an air circuit component 8. The third valve body 5 is disposed on the control component 6. The third valve body 5 has a first inlet, a second inlet, and an outlet. The first valve body 3 and the second valve body 4 are respectively connected to the third valve body 5 through the first inlet and the second inlet. The screw pump body 7 is disposed on the third valve body 5 and is connected to the outlet of the third valve body 5 through the inlet provided at its bottom; the first rubber sleeve 1 is disposed on the first valve body 3, the second rubber sleeve 2 is disposed on the second valve body 4, and the air circuit assembly 8 is disposed on the side of the control assembly 6 and is connected to the first rubber sleeve 1 and the second rubber sleeve 2 through the control assembly 6 respectively.

[0020] The 2600ml glue cartridge non-stop feeding screw pump of this scheme is suitable for continuously and uninterruptedly supplying high-viscosity fluid adhesives to the screw pump. The first glue cartridge 1 and the second glue cartridge 2 are installed side by side, with the first valve body 3 and the second valve body 4 installed at their respective discharge ports. The first valve body 3 and the second valve body 4 are connected in parallel through the third valve body 5, and then connected to the input port at the bottom of the screw pump body 7 through the outlet of the third valve body 5. During feeding, the control component 6 first opens the air passage connecting the air passage component 8 to the first glue cartridge 1, so that air pressure acts on the first glue cartridge 1. The glue in the first glue cartridge 1 enters the third valve body 5 from the first valve body 3 at the bottom, and then enters the screw pump body 7 through the outlet of the third valve body 5. The material flows out from the output port 71 on the upper part of the screw pump body 7. When switching is required, the control component 6 opens the air passage connecting the air passage component 8 and the second glue cylinder 2, and the second glue cylinder 2 begins to pressurize and supply material. At the same time, after a short delay, the air passage connecting the first glue cylinder 1 is cut off, so that the first glue cylinder 1 is depressurized. At this time, the switching is completed, and the operator can replace the first glue cylinder 1 after depressurization. After the replacement is completed, wait for the next switching command and work in a cycle. This achieves a continuous and uninterrupted supply of high-viscosity fluid adhesive to the screw pump, solving the problems of complex structure, easy failure, and large pressure fluctuation when changing cylinders caused by the use of switching valves in existing screw pumps. It provides a non-stop feeding system with no switching valve, simplified structure, and reliable control.

[0021] In this embodiment, as Figure 1 As shown, both the first valve body 3 and the second valve body 4 are one-way valves.

[0022] Specifically, the outlets of the first rubber cylinder 1 and the second rubber cylinder 2 are connected to the inlets of the first valve body 3 and the second valve body 4. A one-way valve is used instead of a switching valve to simplify the structure, reduce the failure rate and cost, and achieve automatic switching by utilizing the pressure difference characteristics of the one-way valve, thus reliably preventing overflow.

[0023] In this embodiment, as Figure 1 As shown, the capacity of the first glue tube 1 and the second glue tube 2 is 2600ML, and the first glue tube 1 and the second glue tube 2 are detachably connected to the first valve body 3 and the second valve body 4, respectively.

[0024] Specifically, the first rubber cylinder 1 and the second rubber cylinder 2 are threadedly connected to the first valve body 3 and the second valve body 4, respectively, so that the outlets of the first rubber cylinder 1 and the second rubber cylinder 2 are connected to the inlets of the first valve body 3 and the second valve body 4 for easy replacement.

[0025] In this embodiment, as Figure 1 As shown, the third valve body 5 is a three-way valve.

[0026] Specifically, the third valve body 5 has an inlet on each side of one end, namely the first inlet and the second inlet, and an outlet at the other end, forming a three-way connector. The outlets of the first valve body 3 and the second valve body 4 are respectively connected to the first inlet and the second inlet of the third valve body 5 to realize the parallel connection of the first rubber sleeve 1 and the second rubber sleeve 2.

[0027] In this embodiment, as Figure 1 As shown, the upper part of the screw pump body 7 is provided with an output port 71, the screw pump body 7 is provided with a pump chamber, and the input port and the output port 71 are connected to the pump chamber.

[0028] Specifically, a pump body is installed inside the pump chamber, which drives the glue entering from the input port of the screw pump body 7 to flow to the output port 71.

[0029] In this embodiment, as Figure 2 As shown, the air circuit assembly 8 includes a first pressure solenoid valve, a first auxiliary solenoid valve, and a first pressure cylinder 81. The first pressure cylinder 81 is disposed on the top of the first glue cylinder 1, and a first air source inlet 11 is disposed on the side of the first pressure cylinder 81. The first pressure solenoid valve and the first auxiliary solenoid valve are both located on the side of the control assembly 6 and are respectively connected to the first air source inlet 11 through air pipes.

[0030] Specifically, the control component 6 first energizes and opens the first pressure-pressing solenoid valve and the first auxiliary solenoid valve. The high pressure-pressing air pressure and the low pressure-auxiliary air pressure together cause the first pressure-pressing cylinder 81 to act on the first glue cylinder 1, starting the material supply.

[0031] In this embodiment, as Figure 2 As shown, the air pressure output by the air circuit assembly 8 through the first pressure bonding solenoid valve is different from the air pressure output through the first auxiliary solenoid valve.

[0032] Specifically, the air path connecting the first pressure-adhesion solenoid valve to the first air source inlet 11 is the pressure-adhesion air path, with a pressure of 0.3 MPa. The air path connecting the first auxiliary solenoid valve to the first air source inlet 11 is the auxiliary air path, with a pressure of 0.2 MPa. The dual air paths work together to stabilize the pressure and reduce pressure fluctuations during switching.

[0033] In this embodiment, as Figure 2 As shown, the air circuit assembly 8 also includes a second pressure solenoid valve, a second auxiliary solenoid valve, and a second pressure cylinder 82. The second pressure cylinder 82 is disposed on the top of the second glue cylinder 2, and a second air source inlet 12 is disposed on the side of the second pressure cylinder 82. The second pressure solenoid valve and the second auxiliary solenoid valve are both located on the side of the control assembly 6 and are respectively connected to the second air source inlet 12 through air pipes.

[0034] Specifically, the control component 6 first energizes and opens the second pressure solenoid valve and the second auxiliary solenoid valve. The high pressure pressure and the low pressure auxiliary pressure together cause the second pressure cylinder 82 to act on the second glue cylinder 2, starting the material supply.

[0035] In this embodiment, as Figure 1 As shown, the control component 6 includes a main air inlet 61, a first pressure bonding interface 62, a first auxiliary interface 64, a second pressure bonding interface 63, and a second auxiliary interface 65. The main air inlet 61 is connected to the first pressure bonding interface 62, the first auxiliary interface 64, the second pressure bonding interface 63, and the second auxiliary interface 65, respectively. The first pressure bonding interface 62 is connected to the first pressure bonding solenoid valve through an air pipe. The first auxiliary interface 64 is connected to the first auxiliary solenoid valve through an air pipe. The second pressure bonding interface 63 is connected to the second pressure bonding solenoid valve through an air pipe. The second auxiliary interface 65 is connected to the second auxiliary solenoid valve through an air pipe.

[0036] Specifically, air enters through the main air inlet 61 to provide compressed air. After filtration and pressure reduction, it is divided into two paths: one path serves as the adhesive pressing air path (which can be set to 0.3MPa), and the other path reduces the pressure through a pressure reducing valve to serve as an auxiliary air path (which can be set to 0.2MPa). The adhesive pressing air path is divided into two paths, controlled by the first adhesive pressing solenoid valve and the second adhesive pressing solenoid valve respectively, and finally connected to the air inlet at the top of the first and second glue cylinders 2. The auxiliary air path is also divided into two paths, controlled by the first auxiliary solenoid valve and the second auxiliary solenoid valve respectively, and also connected to the air inlet of the corresponding glue cylinder.

[0037] In this embodiment, as Figure 1 As shown, the control component 6 includes a PLC controller, which is connected to the pneumatic circuit component 8.

[0038] Specifically, the PLC controller is connected to the first pressure solenoid valve, the first auxiliary solenoid valve, the second pressure solenoid valve, and the second auxiliary solenoid valve of the air circuit assembly 8. Its programming logic is to synchronously open or close the "pressure solenoid valve" and the "auxiliary solenoid valve" leading to the same glue cylinder, so as to realize the coordinated pressurization of a single glue cylinder. The dual glue cylinder parallel feeding structure eliminates the need for switching valves and utilizes the coordinated control of dual air circuits (pressure air circuit + auxiliary air circuit). Automatic switching is achieved by using a one-way valve and PLC. The PLC synchronously controls the two solenoid valves of the same glue cylinder, which can realize fully automatic operation.

[0039] It should be noted that the above-mentioned technical features can be combined with each other to form various embodiments not listed above, all of which are considered to be within the scope of this utility model specification; and, for those skilled in the art, improvements or modifications can be made based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims of this utility model.

Claims

1. A screw pump for continuous supply of adhesive to a 2600ML glue cylinder without stopping the machine, used to continuously supply adhesive to the screw pump body (7), characterized in that: It includes a first rubber sleeve (1), a second rubber sleeve (2), a first valve body (3), a second valve body (4), a third valve body (5), a control component (6), a screw pump body (7), and an air circuit component (8). The third valve body (5) is disposed on the control component (6). The third valve body (5) has a first inlet, a second inlet, and an outlet. The first valve body (3) and the second valve body (4) are respectively connected to the third valve body (5) through the first inlet and the second inlet. The screw pump body (7) is mounted on the third valve body (5) and is connected to the outlet of the third valve body (5) through the inlet provided at its bottom; The first rubber tube (1) is disposed on the first valve body (3), the second rubber tube (2) is disposed on the second valve body (4), and the air circuit assembly (8) is disposed on the side of the control assembly (6) and is connected to the first rubber tube (1) and the second rubber tube (2) respectively through the control assembly (6).

2. The screw pump for non-stop feeding of 2600ML rubber cylinders according to claim 1, characterized in that, Both the first valve body (3) and the second valve body (4) are one-way valves.

3. The screw pump for non-stop feeding of 2600ML rubber cylinders according to claim 2, characterized in that, The first glue tube (1) and the second glue tube (2) each have a capacity of 2600ML. The first glue tube (1) and the second glue tube (2) are detachably connected to the first valve body (3) and the second valve body (4), respectively.

4. The screw pump for non-stop feeding of 2600ML rubber cartridges according to claim 2, characterized in that, The third valve body (5) is a three-way valve.

5. The screw pump for non-stop feeding of 2600ML rubber cartridges according to claim 2, characterized in that, The upper part of the screw pump body (7) is provided with an output port (71), the screw pump body (7) is provided with a pump cavity, and the input port and the output port (71) are connected to the pump cavity.

6. The screw pump for non-stop feeding of 2600ML rubber cylinders according to claim 1, characterized in that, The pneumatic assembly (8) includes a first pressure solenoid valve, a first auxiliary solenoid valve and a first pressure cylinder (81). The first pressure cylinder (81) is located on the top of the first glue cylinder (1). A first air source inlet (11) is provided on the side of the first pressure cylinder (81). The first pressure solenoid valve and the first auxiliary solenoid valve are both located on the side of the control assembly (6) and are connected to the first air source inlet (11) through air pipes.

7. The screw pump for non-stop feeding of 2600ML rubber cartridges according to claim 6, characterized in that, The air pressure output by the air circuit assembly (8) through the first pressure bonding solenoid valve is different from the air pressure output through the first auxiliary solenoid valve.

8. The screw pump for non-stop feeding of 2600ML rubber cylinders according to claim 7, characterized in that, The pneumatic assembly (8) further includes a second pressure solenoid valve, a second auxiliary solenoid valve, and a second pressure cylinder (82). The second pressure cylinder (82) is located on the top of the second glue cylinder (2). A second air source inlet (12) is provided on the side of the second pressure cylinder (82). The second pressure solenoid valve and the second auxiliary solenoid valve are both located on the side of the control assembly (6) and are connected to the second air source inlet (12) through air pipes.

9. The screw pump for non-stop feeding of 2600ML rubber cartridges according to claim 8, characterized in that, The control component (6) includes a main air inlet (61), a first pressure bonding interface (62), a first auxiliary interface (64), a second pressure bonding interface (63), and a second auxiliary interface (65). The main air inlet (61) is connected to the first pressure bonding interface (62), the first auxiliary interface (64), the second pressure bonding interface (63), and the second auxiliary interface (65), respectively. The first pressure bonding interface (62) is connected to the first pressure bonding solenoid valve through an air pipe. The first auxiliary interface (64) is connected to the first auxiliary solenoid valve through an air pipe. The second pressure bonding interface (63) is connected to the second pressure bonding solenoid valve through an air pipe. The second auxiliary interface (65) is connected to the second auxiliary solenoid valve through an air pipe.

10. The screw pump for non-stop feeding of 2600ML rubber cylinders according to claim 1, characterized in that, The control component (6) includes a PLC controller, which is connected to the pneumatic circuit component (8).

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