Backflow detection machine

By designing a backflow testing machine, which uses a turntable and a rising pin for airtightness testing, and combines a camera with a spring, the problem of existing foam pump testing machines being unable to perform continuous testing and airtightness testing has been solved, thus achieving efficient foam pump testing.

CN223966220UActive Publication Date: 2026-03-03SONGJIA (GUANGZHOU) PLASTIC PACKAGING CO LTD
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Patent Information

Application Number
CN202520792474.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-24
Publication Date
2026-03-03
Estimated Expiration
2035-04-24

AI Technical Summary

Technical Problem

Existing foam pump testing machines cannot perform continuous testing, have slow testing speeds, and cannot simultaneously perform airtightness and spring testing.

Method used

A reflow inspection machine was designed, comprising a frame, a protective cover, an inspection mechanism, a feeding track, and discharge tracks for good and defective products. It uses a motor-driven turntable and a rising pin to perform airtightness inspection, and a camera to detect the presence of springs.

Benefits of technology

It enables continuous testing of foam pumps, improves testing speed, and can simultaneously test airtightness and springs. It is simple to operate and highly practical.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of foam pumps, in particular to a backflow detection machine which comprises a machine frame and a protective cover, and the protective cover is fixedly installed on the machine frame. The detection mechanism is installed on the rack and arranged in the protective cover, a feeding rail extending out of the protective cover is fixed to the rack, and the foam pump can be guided into the detection mechanism through the feeding rail to be detected; and the non-defective product discharging track is fixedly installed on the rack and the detection mechanism and used for receiving the qualified foam pumps and guiding the qualified foam pumps into the next station for machining, a defective product outlet fixed to the rack is formed in one side of the non-defective product discharging track, and the defective product outlet is used for receiving the defective products guided out by the detection mechanism. The backflow detection machine provided by the utility model not only can be used for detecting the foam pump, but also can be used for continuously detecting the foam pump, so that the detection speed of the foam pump is improved, the air tightness of the foam pump and whether a spring exists or not can be further detected at one time, and the practicability is strong.
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Description

Technical Field

[0001] This utility model relates to the field of foam pump testing technology, and in particular to a reflux testing machine. Background Technology

[0002] Foam pumps are specifically designed for conveying foam or foam-containing slurries. Their core function is to maintain foam stability and prevent breakage during transport. Based on structural differences, they can be categorized into centrifugal foam pumps, gear foam pumps, and plunger foam pumps, among others.

[0003] While existing foam pumps can be tested, some problems remain. First, current testing machines cannot perform continuous testing of foam pumps, and the testing speed is relatively slow. Second, current testing machines cannot perform one-time testing of the airtightness and the presence of springs in foam pumps. Therefore, a backflow testing machine is needed to solve the above problems. Utility Model Content

[0004] The purpose of this utility model embodiment is to provide a reflux testing machine, which aims to solve the problems mentioned in the background art.

[0005] This utility model embodiment is implemented as follows: a reflow inspection machine includes: a frame and a protective cover, the protective cover being fixedly installed on the frame; an inspection mechanism, which is installed on the frame and located inside the protective cover, a feed rail extending outside the protective cover is fixed on the frame, and a foam pump can be guided to the inspection mechanism for inspection via the feed rail; a good product discharge rail, which is fixedly installed on the frame and connected to the inspection mechanism, for receiving qualified foam pumps and guiding qualified foam pumps to the next workstation for processing, and a defective product outlet fixed on the frame is provided on one side of the good product discharge rail, the defective product outlet being used to receive defective products discharged by the inspection mechanism.

[0006] Preferably, the detection mechanism includes: a support rod, one end of which is fixedly connected to the frame, and the other end of which is fixedly connected to a support plate, on which a rotating shaft is rotatably connected; a motor, which is fixedly installed at the bottom of the frame, the output shaft of which is connected to a first gear, the first gear meshing with a second gear connected to the rotating shaft; a first turntable, which is fixed on the rotating shaft and has a placement slot for placing a foam pump, the foam pump being guided by a feeding track to the placement slot of the first turntable for detection, the first turntable driving the foam pump to rotate; and a second turntable, which is fixedly installed on the frame. A first turntable is fixed on the rotating shaft and positioned on the upper side of the second turntable, and a lifting pin is installed on the second turntable, with the lifting pin positioned directly above the placement slot; a mechanical valve is installed on the lower side of the first turntable and connected to the lifting pin, used to add air to the lifting pin to determine if the foam pump is leaking; a rotating drum is fixedly installed above the rotating shaft, and an alarm light and a pressure display screen are installed on the rotating drum, corresponding to the lifting pin. The pressure display screen is used to display the pressure to determine if the foam pump is leaking, and the alarm light is used to alert the user if the foam pump is leaking.

[0007] Preferably, it further includes: a backlight panel, which is fixedly mounted on the frame, and a camera disposed on one side of the backlight panel is also mounted on the frame. The camera is used to take pictures of the foam pump for comparison to detect whether there is a spring.

[0008] The reflux testing machine provided by this utility model can not only test foam pumps, but also continuously test foam pumps, which improves the testing speed of foam pumps. Furthermore, it can perform one-time testing on the airtightness and whether there is a spring in the foam pump. It is simple to operate and highly practical. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of a reflux testing machine.

[0010] Figure 2 This is a schematic diagram of the testing mechanism of a reflux testing machine.

[0011] Figure 3 This is a schematic diagram of the motor of the reflux testing machine.

[0012] Figure 4 This is a schematic diagram of the camera in a reflux testing machine.

[0013] In the attached diagram: 1-Frame, 2-Protective cover, 3-Detection mechanism, 4-Feeding track, 5-Good product discharge track, 6-Defective product outlet, 31-Support rod, 32-Support plate, 33-Rotating shaft, 34-Motor, 35-First gear, 36-Second gear, 37-First turntable, 38-Second turntable, 39-Lifting ejector pin, 310-Mechanical valve, 311-Rotating drum, 312-Alarm light, 313-Pneumatic pressure display screen, 7-Backlight panel, 8-Camera. Detailed Implementation

[0014] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and do not limit the present utility model.

[0015] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.

[0016] Please see Figure 1 and Figure 2 This utility model provides a reflux testing machine, which includes:

[0017] The machine consists of a frame 1 and a protective cover 2, with the protective cover 2 fixedly mounted on the frame 1; a detection mechanism 3, mounted on the frame 1 and located inside the protective cover 2; a feed rail 4 extending outside the protective cover 2 is fixed on the frame 1, allowing the foam pump to be fed through the feed rail 4 to the detection mechanism 3 for testing; and a good product discharge rail 5, fixedly mounted on the frame 1 and connected to the detection mechanism 3, used to receive qualified foam pumps and guide them to the next workstation for processing. A defective product outlet 6, fixed to the frame 1, is located on one side of the good product discharge rail 5, used to receive defective products discharged by the detection mechanism 3.

[0018] When using the reflux testing machine, start the testing mechanism 3. After the testing mechanism 3 is running stably, guide the foam pump from the feed track 4 to the testing mechanism 3 for testing. Qualified foam pumps are guided from the good product discharge track 5 to the next station for further processing, while unqualified foam pumps are discharged from the defective product outlet 6.

[0019] like Figure 2 and Figure 3As shown, in a preferred embodiment of this utility model, the detection mechanism 3 includes: a support rod 31, one end of which is fixedly connected to the frame 1, and the other end of the support rod 31 is fixedly connected to a support plate 32, on which a rotating shaft 33 is rotatably connected; a motor 34, which is fixedly installed at the bottom of the frame 1, and the output shaft of the motor 34 is connected to a first gear 35, which meshes with a second gear 36 connected to the rotating shaft 33; a first turntable 37, which is fixed on the rotating shaft 33 and has a placement slot for placing a foam pump, the foam pump can be guided by the feed rail 4 to the placement slot of the first turntable 37 for detection, and the first turntable 37 is used to drive the foam pump to rotate; and a second turntable 38. It is fixed on the rotating shaft 33 and set on the upper side of the first turntable 37. The second turntable 38 is equipped with a lifting pin 39, which is set directly above the placement slot. The mechanical valve 310 is installed on the lower side of the first turntable 37 and connected to the lifting pin 39. It is used to add air to the lifting pin 39 to determine whether the foam pump is leaking. The rotating drum 311 is fixedly installed above the rotating shaft 33. The rotating drum 311 is equipped with an alarm light 312 and a pressure display screen 313. The alarm light 312 and the pressure display screen 313 correspond to the lifting pin 39. The pressure display screen 313 is used to display the pressure to determine whether the foam pump is leaking. The alarm light 312 is used to alarm the foam pump that is leaking.

[0020] In this embodiment, the second turntable 38 is provided with a slide rail, and the lifting pin 39 is slidably mounted on the second turntable 38.

[0021] During the testing of the foam pump, motor 34 is turned on, which drives the first gear 35 to rotate. The first gear 35 drives the second gear 36 and the rotating shaft 33 to rotate. The rotation of the rotating shaft 33 drives the first turntable 37, the second turntable 38, and the rotating drum 311 to rotate. The foam pump can be guided into the placement slot of the first turntable 37 through the feeding track 4. The foam pump can then rotate synchronously with the lifting pin 39. The lifting pin 39 starts to press down on the foam pump and slides along the slide rail. When the lifting pin 39 slides over the slope, the mechanical valve 310 adds air to the lifting pin 39 through the pipeline. Each lifting pin 39 corresponds to a pressure display screen 313. If the pressure display screen 313 shows normal pressure, the foam pump has no air leakage and is a good product. If the pressure display screen 313 shows abnormal pressure, the alarm light 312 will start to sound, indicating that the foam pump is leaking and is a defective product.

[0022] like Figure 4 As shown, in a preferred embodiment of the present invention, it further includes: a backlight panel 7, which is fixedly installed on the frame 1. The frame 1 is also equipped with a camera 8 disposed on one side of the backlight panel 7. The camera 8 is used to take pictures of the foam pump for comparison to detect whether there is a spring.

[0023] When the foam pump passes the backlight panel 7, the camera 8 will take a picture for comparison and detect whether there is a spring under the foam pump. If there is a spring, it is a good product and will flow into the next machine processing through the good product discharge track 5. If there is no spring, the foam pump will flow out through the defective product outlet 6 and will not enter the next processing stage.

[0024] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A reflux testing machine, comprising a frame and a protective cover, characterized in that, The protective cover is fixedly installed on the frame; The testing mechanism is mounted on a frame and housed inside a protective cover. The frame is fixed with a feed track extending outside the protective cover, and the foam pump can be guided to the testing mechanism for testing via the feed track. The good product discharge track is fixedly installed on the frame and the inspection mechanism. It is used to receive qualified foam pumps and guide qualified foam pumps to the next station for processing. A defective product outlet is fixed on the frame on one side of the good product discharge track. The defective product outlet is used to receive defective products exported by the inspection mechanism.

2. The reflux testing machine according to claim 1, characterized in that, The testing institutions include: A support rod, one end of which is fixedly connected to the frame, and the other end of which is fixedly connected to a support plate, with a rotating shaft rotatably connected to the support plate; The motor is fixedly mounted at the bottom of the frame, and the output shaft of the motor is connected to a first gear, which meshes with a second gear connected to the rotating shaft. The first turntable is fixed on the rotating shaft and has a placement slot for placing the foam pump. The foam pump can be guided into the placement slot of the first turntable by the feeding track for testing. The first turntable is used to drive the foam pump to rotate. The second turntable is fixed on the rotating shaft and located above the first turntable. A lifting pin is installed on the second turntable and is located directly above the placement slot. A mechanical valve, which is installed on the lower side of the first turntable and connected to the lifting pin, is used to add air to the lifting pin to determine whether the foam pump is leaking. A rotating drum is fixedly installed above a rotating shaft. An alarm light and a pressure display screen are installed on the rotating drum. The alarm light and the pressure display screen correspond to the lifting pin. The pressure display screen is used to display the pressure to determine whether the foam pump is leaking air, and the alarm light is used to alarm the foam pump that is leaking air.

3. The reflux testing machine according to claim 1, characterized in that, Also includes: A backlight panel is fixedly mounted on a frame, and a camera is also mounted on one side of the backlight panel. The camera is used to take pictures of the foam pump for comparison to detect whether there is a spring.