A coffee machine filter production detection device and method

Abstract

The present invention discloses a production testing device and method for coffee machine filters, relating to the field of machine testing technology. The production testing device and method for coffee machine filters include an upper testing cylinder filled with water and sand simulating coffee bean particles; and a lower testing cylinder that cooperates with the upper testing cylinder to clamp the coffee machine filter between them. The upper and lower testing cylinders cooperate to clamp the coffee machine filter to be tested, and the test is performed using sand mixed with water simulating coffee bean particles. If sand passes through the coffee machine filter, it indicates that the mesh density of the coffee machine filter is unqualified. In addition to gravity testing, the present invention also adds a two-stage dynamic testing method of stirring and shaking. By moving the sand to increase the difficulty, the quality of the coffee machine filter can be better tested. The test is simple, convenient, and low-cost. Compared with a simple and direct penetration test, the test accuracy is better, ensuring the quality of the produced coffee machine filter.

Description

Technical Field

[0001] The present invention relates to the technical field of machine testing, and in particular to a production testing device and method for a coffee machine filter. Background Art

[0002] The primary function of a coffee machine filter is to filter oils and impurities from coffee grounds, thereby improving the taste and quality of the coffee. Different types of filters have varying effects on the coffee's flavor, and users can choose the appropriate filter type based on their preferences and needs. Quality inspection of coffee machine filters is crucial for ensuring the performance of the coffee machine and the quality of the coffee.

[0003] Publication No. CN112710467A discloses a production and testing device for coffee machine filters, comprising a supporting frame, a first collection box, and a side leakage detection system; the supporting frame is connected to the first collection box. The present invention addresses the problem of a filter with leakage holes on both the bottom and sides. Hot water at the same temperature as coffee boiling mixed with sand larger than the filter holes is used as a simulated material to test the strength of the connecting wires between the holes to determine the quality of the filter. The filter's load-bearing capacity is also tested to ensure that no large beans are filtered out during filtration. This overcomes the existing inability to test coffee machine filters.

[0004] As shown in the above-mentioned prior art, the current simulation test of the coffee machine filter is to use sand particles simulating coffee particles to penetrate the filter to test the filter's ability to filter coffee particles. However, the above device is relatively large as a whole, and requires adding hot water to simulate the temperature of brewing coffee, and performing an impact test with sand particles. A balance table is also designed for accurate testing. The entire set of testing devices is complex to operate and costly, and the testing workload is large. In fact, the quality test of the coffee machine filter is still mainly to test its filtering effect. Therefore, how to design a device with a simple structure, low cost, simple operation, and good testing effect is urgently needed. Summary of the Invention

[0005] In view of the shortcomings of the existing technology, the present invention provides a production detection device and method for coffee machine filters, which solves the problems that still exist in the current devices for coffee machine filter quality detection.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: A production detection device for a coffee machine filter, comprising a detection mechanism for placing the coffee machine filter for detection, and a bracket for placing and supporting the detection mechanism, wherein the detection mechanism includes:

[0007] The upper detection cylinder is filled with water and sand simulating coffee bean particles. A stirring mechanism is also provided inside the upper detection cylinder to agitate the sand particles to increase their chance of passing through the coffee machine filter. A driving member is mounted on the top of the upper detection cylinder to rotate the stirring mechanism. An eccentric swinging structure is mounted on the top of the stirring structure to cause the entire detection mechanism to oscillate using centrifugal force during rotation. The eccentric swinging structure can be selectively driven or not driven by the stirring mechanism.

[0008] a lower detection cylinder, which cooperates with the upper detection cylinder to clamp the coffee machine filter therebetween, and the lower detection cylinder is used to receive and observe water and sand that leaks through the coffee machine filter;

[0009] The clamp is used to connect and fix the upper detection tube and the lower detection tube, and the clamp is mounted on the bracket for use, and the bracket elastically supports the clamp to increase the swing amplitude of the detection mechanism;

[0010] A pneumatic power source is installed on the bracket, which is used to drive the driving part to work in a split manner to avoid the influence of the shaking of the detection mechanism on the pneumatic power source.

[0011] Preferably, the bottom of the lower detection cylinder is threadedly connected to a transparent observation bottle, and a sand collecting hopper is installed inside the lower detection cylinder. The sand collecting hopper is used to gather the fallen sand particles to the middle and discharge them into the transparent observation bottle. The bottom of the inner cavity of the lower detection cylinder is also provided with a sand retaining hopper covering the outside of the bottom end of the sand collecting hopper. The sand retaining hopper is used to isolate the sand particles from the periphery to prevent the sand particles from entering the sand collecting hopper when the detection mechanism is flipped.

[0012] Preferably, the bottom of the sand retaining hopper is fixedly connected to a plurality of connecting rods, which slide through the bottom of the lower detection cylinder and are connected through a push ring. The bottom of the sand retaining hopper is separated from or fitted onto the inner wall of the lower detection cylinder by pushing and pulling the push ring. The bottom of the lower detection cylinder is conical, so that when the sand retaining hopper rises and separates from the lower detection cylinder, the sand particles on the periphery of the sand retaining hopper slide toward the center and are discharged.

[0013] Preferably, a plurality of through holes are evenly opened on the top of the sand collecting hopper, and a fine filter covering the through holes is pasted on the outer wall of the sand collecting hopper, and the mesh of the fine filter is smaller than the mesh of the coffee machine filter. When the detection mechanism is flipped, the water outside the sand collecting hopper flows back into the upper detection cylinder through the through holes.

[0014] Preferably, the stirring structure includes a stirring rod and a stirring blade fixed at its bottom end, and the stirring blade is blade-shaped, which causes the sand to churn when rotating;

[0015] The driving part includes a wind hood fixedly connected to the top of the upper detection cylinder by nuts and studs, a prismatic sleeve is provided on the surface of the stirring rod and is located at the top of the upper detection cylinder, and the prismatic sleeve passes through the top of the wind hood, and a fan blade axially sleeved outside the prismatic sleeve rotates in the wind hood, one side of the wind hood is tangentially connected to an air inlet nozzle, and the other side of the wind hood is tangentially provided with an air outlet, and air is blown into the wind hood from the air inlet nozzle to drive the fan blade to rotate.

[0016] Preferably, the eccentric swing structure includes a rocker arm, one end of which is provided with a prismatic hole adapted to the prismatic sleeve, a magnetic ring is bonded inside the rocker arm and on the top of the prismatic hole, the magnetic force of the magnetic ring prevents the rocker arm from sliding down on its own and connecting with the prismatic sleeve, the prismatic hole is covered with the prismatic sleeve by pressing the rocker arm downward, and the other end of the rocker arm is threadedly connected to a counterweight block.

[0017] Preferably, the clamp comprises a left half clamp and a right half clamp hinged to each other at one end, the other end of the right half clamp is rotatably connected to a T-shaped stud, and one end of the T-shaped stud is threadedly connected to a butterfly nut, the other end of the left half clamp is provided with a hanging block, and a notch adapted to the T-shaped stud is opened inside the hanging block, and the T-shaped stud is inserted into the notch and the butterfly nut is tightened to fasten the upper detection tube and the lower detection tube;

[0018] A sealing gasket is also provided on the bottom surface of the upper detection cylinder, and a groove for positioning the coffee machine filter is provided on the bottom surface of the sealing gasket; the opposing surfaces of the upper detection cylinder and the lower detection cylinder both have convex edges extending outward, the outer surface of the convex edge is a slope, and a wear-resistant metal ring is embedded and fixed on the slope, and when the clamp is tightened, the wear-resistant metal ring is squeezed to compress the upper detection cylinder and the lower detection cylinder.

[0019] Preferably, the bracket includes an upper ring and a lower ring, and multiple vertical plates are connected between the upper ring and the lower ring. An air pump is fixedly connected between the vertical plates on one side through a mounting plate, an inflation pipe is connected between the air outlet end and the air inlet nozzle of the air pump, and a dust filter cover is provided at the air inlet end of the air pump. A starting switch is fixedly connected between the vertical plates on the other side through a mounting plate, and the starting switch is connected to an external power supply and to the air pump through a wire.

[0020] Preferably, the top of the upper ring is elastically connected to multiple U-shaped seats through multiple evenly distributed springs, and the sides of the clamp and the upper detection tube are fixedly connected to multiple clamping rods. The detection mechanism is placed on the bracket by placing the clamping rods into the U-shaped seats.

[0021] The present invention also discloses a detection method based on a production detection device for a coffee machine filter, comprising the following steps:

[0022] Step 1: First, place the upper test cylinder upside down on the bracket, open the clamp, pour water and sand into the upper test cylinder, then place the coffee machine filter to be tested. Then, cover the lower test cylinder on the upper test cylinder and press the coffee machine filter tightly. Then, lock the upper and lower test cylinders with the clamp, turn it over and place it on the bracket;

[0023] Step 2: First, observe whether there is sand in the transparent observation bottle in a static state to preliminarily judge the quality of the coffee machine filter. If no sand is observed, activate the pneumatic power source to rotate the stirring mechanism through the driving member to stir the sand for a second test, and again observe whether there is sand falling into the transparent observation bottle in a dynamic state. If no sand is still observed, press down the eccentric swinging mechanism, and use the stirring mechanism to drive the eccentric swinging mechanism to rotate, causing the detection mechanism to shake for a third test, and again observe whether there is sand falling into the transparent observation bottle.

[0024] Step 3: Use triple testing to determine the quality of the coffee machine filter and record it, then repeat step 1 to replace the coffee machine filter.

[0025] The present invention provides a production and detection device and method for coffee machine filters. Compared with the prior art, it has the following advantages:

[0026] 1. This coffee machine filter production testing device uses an upper testing cylinder and a lower testing cylinder to clamp the coffee machine filter to be tested. Sand mixed with water to simulate coffee bean particles is used for testing. If sand passes through the coffee machine filter, it indicates that the mesh density of the coffee machine filter is unqualified. In addition to gravity testing, the present invention also adds a two-stage dynamic testing method of stirring and shaking. By moving the sand to increase the difficulty, the quality of the coffee machine filter can be better tested. The test is simple, convenient and low-cost. Compared with the simple and direct penetration test, the test accuracy is better, ensuring the quality of the produced coffee machine filter.

[0027] 2. The production inspection device of the coffee machine filter is provided with a transparent observation bottle at the bottom of the lower inspection cylinder. If sand passes through the coffee machine filter during the inspection process, it means that part or all of the pores of the coffee machine filter are too large, and thus its quality is unqualified. After inspecting a coffee machine filter, when the inspection mechanism is flipped over and the coffee machine filter is opened to be replaced, the sand in the transparent observation bottle will slide to the outside of the sand collecting hopper due to the layout of the sand retaining hopper and the sand collecting hopper during the flipping process. When turning back again, the sand on the outside of the sand collecting hopper will slide to the outside of the sand retaining hopper again, thereby preventing sand from falling onto the coffee machine filter to be replaced and causing sand to be scattered. By simply pushing up the sand retaining hopper, the sand on the outside can be discharged from the bottom for easy collection and reuse. The structural layout is ingenious and the use is flexible and convenient.

[0028] 3. The production and testing device for the coffee machine filter has a stirring structure that can be driven by wind to rotate by a driving member during the testing process, thereby churning up the sand. The dynamic sand can pass through the coffee machine filter more comprehensively than the static sand, thereby more effectively testing the quality of the coffee machine filter. At the same time, the stirring structure can also be equipped with an eccentric swinging structure. While rotating and churning the sand, it can also drive the testing mechanism itself to move to achieve a shaking effect. Under the dual dynamic effects, the quality of the coffee machine filter can be further tested, and the eccentric swinging structure can be used selectively, thereby providing multiple levels of experimental effects for the quality inspection of the coffee machine filter, and the structure is simple and convenient to operate.

[0029] 4. The production and detection device for the coffee machine filter has a simple bracket structure. The diameter of the lower ring is larger than that of the upper ring, and the structure with a small upper part and a large lower part is relatively stable. The detection mechanism can be placed in both directions by using a spring and a U-shaped seat to position the support rod. It can be used for both the replacement and detection steps of the coffee machine filter. The elastic support method allows the detection mechanism to further increase the vibration amplitude when swinging, which is convenient for better detection of the quality of the coffee machine filter. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a left axonometric view of the present invention;

[0031] Figure 2 It is a right axonometric view of the present invention;

[0032] Figure 3 A schematic diagram of replacing the coffee machine filter according to the present invention;

[0033] Figure 4 It is a partial exploded view of the detection mechanism of the present invention;

[0034] Figure 5 This is a cross-sectional view of the lower detection tube structure of the present invention;

[0035] Figure 6 This is a schematic diagram of the sand retaining hopper of the present invention in a raised state;

[0036] Figure 7 Schematic diagram of the sand collecting hopper and fine filter screen of the present invention;

[0037] Figure 8 Schematic diagram of the sand retaining bucket, connecting rod and push ring of the present invention;

[0038] Figure 9 This is an exploded cross-sectional view of the structure on the detection tube of the present invention;

[0039] Figure 10 A schematic diagram of the wind shield of the present invention;

[0040] Figure 11An exploded view of the eccentric swing structure of the present invention;

[0041] Figure 12 This is a schematic structural diagram of the clamp of the present invention;

[0042] Figure 13 It is a bottom view schematic diagram of the spring and U-shaped seat of the present invention.

[0043] In the picture: 1. Coffee machine filter;

[0044] 2. Bracket; 21. Upper ring; 22. Lower ring; 23. Vertical plate; 24. Mounting plate; 25. Spring; 26. U-shaped seat;

[0045] 3. Upper detection tube; 301. Wear-resistant metal ring; 31. Stirring structure; 311. Stirring rod; 312. Stirring blade; 32. Eccentric swing structure; 321. Swing rod; 322. Magnetic ring; 323. Counterweight; 33. Fan cover; 331. Air inlet nozzle; 332. Air outlet; 34. Prismatic sleeve; 35. Fan blade;

[0046] 4. Lower detection tube; 41. Transparent observation bottle; 42. Sand collecting hopper; 43. Sand blocking hopper; 44. Fine filter; 45. Connecting rod; 46. Push ring; 47. Through hole;

[0047] 5. Clamp; 51. Left half clamp; 52. Right half clamp; 53. T-stud; 54. Butterfly nut; 55. Clamping rod;

[0048] 6. Pneumatic power source; 61. Air pump; 62. Inflatable tube; 63. Start switch;

[0049] 7. Sealing gasket. DETAILED DESCRIPTION

[0050] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0051] The present invention discloses a production and detection device for a coffee machine filter and provides the following four technical solutions:

[0052] Figures 1-4 The first embodiment is shown: comprising a detection mechanism for placing a coffee machine filter 1 for detection, and a bracket 2 for placing and supporting the detection mechanism, the detection mechanism comprising:

[0053] The upper detection cylinder 3 is filled with water and sand simulating coffee bean particles. The diameter of the sand is larger than the pore size of the standard coffee machine filter 1. The upper detection cylinder 3 is also provided with a stirring structure 31. The stirring structure 31 stirs the sand to increase the probability of passing through the coffee machine filter 1. A driving member is installed on the top of the upper detection cylinder 3 to drive the stirring structure 31 to rotate. The top of the stirring structure 31 is equipped with an eccentric swinging structure 32, which uses centrifugal force to cause the entire detection mechanism to shake during rotation. The eccentric swinging structure 32 can be selectively driven or not driven by the stirring structure 31. A heating structure can also be installed in the upper detection cylinder 3 to further simulate the effect of temperature on the coffee machine filter 1, or to increase the influence of other physical factors.

[0054] The lower detection cylinder 4 cooperates with the upper detection cylinder 3 to clamp the coffee machine filter 1 therebetween. The lower detection cylinder 4 is used to receive and observe water and sand that leak through the coffee machine filter 1.

[0055] A sealing gasket 7 is also provided on the bottom surface of the upper detection cylinder 3, and a groove for positioning the coffee machine filter 1 is provided on the bottom surface of the sealing gasket 7;

[0056] The clamp 5 is used to connect and fix the upper detection tube 3 and the lower detection tube 4. The clamp 5 is mounted on the bracket 2, and the bracket 2 elastically supports the clamp 5 to increase the swing amplitude of the detection mechanism;

[0057] A pneumatic power source 6 is mounted on the bracket 2 for driving the driving member in a split manner to avoid the influence of the shaking of the detection mechanism on the pneumatic power source 6 .

[0058] The present invention adopts an upper detection cylinder 3 and a lower detection cylinder 4 to cooperate with each other to clamp the coffee machine filter 1 to be tested, and uses sand mixed with water to simulate coffee bean particles for testing. If sand passes through the coffee machine filter 1, it means that the mesh density of the coffee machine filter 1 is unqualified. On the basis of gravity detection, the present invention also adds a two-stage dynamic detection method of one stirring and one shaking. By making the sand move to increase the difficulty, the quality of the coffee machine filter 1 can be better detected. The experiment is simple, convenient and low-cost. Compared with the simple and direct penetration test, its detection accuracy is better, thereby ensuring the quality of the produced coffee machine filter 1.

[0059] Figure 5-Figure 8The second embodiment is shown, which differs from the first embodiment mainly in that: a transparent observation bottle 41 is threadedly connected to the bottom of the lower detection cylinder 4, and a sand collecting hopper 42 is installed inside the lower detection cylinder 4. The sand collecting hopper 42 is used to gather the fallen sand particles to the center and discharge them into the transparent observation bottle 41. The bottom of the inner cavity of the lower detection cylinder 4 is also provided with a sand blocking hopper 43 covering the outside of the bottom end of the sand collecting hopper 42. The sand blocking hopper 43 is used to isolate the sand particles from the periphery when the detection mechanism is flipped over to prevent the sand particles from entering the sand collecting hopper 42; the structure of the sand blocking hopper 43 is similar to a teacup with a teacup holder at the bottom, and the bottom of the sand blocking hopper 43 is fixedly connected to a plurality of connecting rods 45, which slide through the bottom of the lower detection cylinder 4 and are connected by a pushing ring 46. The bottom of the sand blocking hopper 43 is separated or attached to the inner wall of the lower detection cylinder 4 by pushing and pulling the pushing ring 46. The bottom of the lower detection cylinder 4 is tapered, so that when the sand blocking hopper 43 rises and separates from the lower detection cylinder 4, the sand particles on the periphery of the sand blocking hopper 43 slide toward the center and are discharged;

[0060] A plurality of through holes 47 are evenly arranged on the top of the sand collecting hopper 42. A fine filter 44 covering the through holes 47 is pasted on the outer wall of the sand collecting hopper 42. The mesh of the fine filter 44 is smaller than the mesh of the coffee machine filter 1. When the detection mechanism is flipped, the water outside the sand collecting hopper 42 flows back into the upper detection cylinder 3 through the through holes 47. The water discharged back into the upper detection cylinder 3 can also flush some of the sand particles remaining on the coffee machine filter 1 back into the upper detection cylinder 3.

[0061] By arranging a transparent observation bottle 41 at the bottom of the lower detection cylinder 4, if sand passes through the coffee machine filter 1 during the detection process, it means that part or all of the pores of the coffee machine filter 1 are too large, and thus its quality is unqualified. After testing a coffee machine filter 1, when the detection mechanism is flipped over and the coffee machine filter 1 is opened to replace, the sand in the transparent observation bottle 41 will slide to the outside of the sand collecting hopper 42 due to the layout of the sand retaining hopper 43 and the sand collecting hopper 42 during the flipping process, and the sand outside the sand collecting hopper 42 will slide to the outside of the sand retaining hopper 43 when turning back again, thereby preventing sand from falling into the coffee machine filter 1 to be replaced and causing the sand to be scattered. By simply pushing up the sand retaining hopper 43, the sand outside it can be discharged from the bottom for easy collection and reuse. The structural layout is ingenious and the use is flexible and convenient.

[0062] Figures 9-11 The third embodiment is shown, which differs from the first embodiment mainly in that the stirring structure 31 includes a stirring rod 311 and a stirring blade 312 fixed at its bottom end, and the stirring blade 312 is a blade-shaped blade that causes the sand to churn when rotating;

[0063] The driving member includes a hood 33 fixedly connected to the top of the upper detection cylinder 3 by nuts and studs, a prismatic sleeve 34 is fixedly sleeved on the surface of the stirring rod 311 and located at the top of the upper detection cylinder 3, and the prismatic sleeve 34 passes through the top of the hood 33. A fan blade 35 axially sleeved on the outside of the prismatic sleeve 34 rotates in the hood 33, and an air inlet nozzle 331 is tangentially connected to one side of the hood 33, and an air outlet 332 is tangentially opened on the other side of the hood 33. The air outlet 332 faces opposite to the air inlet nozzle 331 but is located on both sides of the axis, so that the air flow flows in an annular direction. The fan blade 35 is driven to rotate by blowing air from the air inlet nozzle 331 into the hood 33.

[0064] The eccentric swing structure 32 includes a pendulum rod 321, one end of which is provided with a prismatic hole adapted to the prismatic sleeve 34. A magnetic ring 322 is bonded inside the pendulum rod 321 and at the top of the prismatic hole. The magnetic force of the magnetic ring 322 prevents the pendulum rod 321 from sliding down and connecting with the prismatic sleeve 34. The stirring rod 311 is a round shaft with a smooth surface, so the friction is small during rotation and will not drive the eccentric swing structure 32 to rotate, or the eccentric swing structure 32 will only rotate very slowly. The prismatic hole is covered with the prismatic sleeve 34 by pressing down the pendulum rod 321, and the other end of the pendulum rod 321 is threadedly connected to a counterweight block 323.

[0065] During the detection process, the stirring structure 31 can be driven by the driving part to rotate by wind, thereby churning up the sand. The dynamic sand can pass through the coffee machine filter 1 more comprehensively than the static sand, so the quality of the coffee machine filter 1 can be detected more effectively. At the same time, the stirring structure 31 can also be equipped with an eccentric swinging structure 32. While rotating and churning the sand, it can also drive the detection mechanism itself to move to achieve a shaking effect. Under the dual dynamic effect, the quality of the coffee machine filter 1 can be further detected, and the eccentric swinging structure 32 can be used selectively, thereby providing multiple levels of experimental effects for the quality inspection of the coffee machine filter 1, and the structure is simple and convenient to operate.

[0066] Figure 1 Figure 2 and Figure 12-13 A fourth embodiment is shown, which differs from the first embodiment primarily in that the clamp 5 comprises a left half-clamp 51 and a right half-clamp 52 hingedly connected at one end. The other end of the right half-clamp 52 is rotatably connected to a T-shaped stud 53, and one end of the T-shaped stud 53 is threadedly connected to a butterfly nut 54. The other end of the left half-clamp 51 is provided with a hanging block, and a notch is provided inside the hanging block to fit the T-shaped stud 53. After the T-shaped stud 53 is inserted into the notch, the butterfly nut 54 is tightened to secure the upper and lower detection tubes 3 and 4.

[0067] The upper detection tube 3 and the lower detection tube 4 have convex edges extending outward on their opposite surfaces. The outer surface of the convex edge is a slope, and a wear-resistant metal ring 301 is embedded and fixed on the slope. When the clamp 5 is tightened, the wear-resistant metal ring 301 is squeezed to compress the upper detection tube 3 and the lower detection tube 4.

[0068] The clamp 5 is used to fix the upper detection tube 3 and the lower detection tube 4. It only needs to tighten a butterfly nut 54 to fix them, and there is no need to tighten them throughout the process or completely disassemble them. The tightening is simple and convenient. At the same time, the design of the wear-resistant metal ring 301 can also avoid the wear of the upper detection tube 3 and the lower detection tube 4 caused by frequent tightening.

[0069] The bracket 2 includes an upper ring 21 and a lower ring 22, and multiple vertical plates 23 are connected between the upper ring 21 and the lower ring 22. The pneumatic power source 6 includes an air pump 61 fixedly connected to the vertical plate 23 on one side through a mounting plate 24. An inflation pipe 62 is connected between the air outlet end of the air pump 61 and the air inlet nozzle 331. A dust filter cover is provided at the air inlet end of the air pump 61. A starting switch 63 is fixedly connected between the vertical plates 23 on the other side through the mounting plate 24. The starting switch 63 is connected to an external power supply and is connected to the air pump 61 through a wire.

[0070] The top of the upper ring 21 is elastically connected to multiple U-shaped seats 26 through multiple evenly distributed springs 25. The sides of the clamp 5 and the upper detection tube 3 are fixedly connected with multiple clamping rods 55. The detection mechanism is placed on the bracket 2 by placing the clamping rods 55 into the U-shaped seats 26.

[0071] By setting up the bracket 2 with a simple structure, the diameter of the lower ring 22 is larger than that of the upper ring 21, and the structure with a small upper part and a large lower part is relatively stable. The spring 25 is used in conjunction with the U-shaped seat 26 to position the support clamping rod 55, so that the detection mechanism can be placed in both the positive and negative directions, which can be used for the replacement step of the coffee machine filter 1, and the elastic support method allows the detection mechanism to further increase the shaking amplitude when swinging, so as to better detect the quality of the coffee machine filter 1.

[0072] The present invention also discloses a detection method based on a production detection device for a coffee machine filter, comprising the following steps:

[0073] Step 1: First, turn the detection mechanism upside down and use the clamping rod 55 to invert the upper detection cylinder 3 onto the U-shaped seat 26 of the bracket 2. Screw the butterfly nut 54 of the clamp 5 onto the end of the T-shaped stud 53. Then, unscrew the T-shaped stud 53 to open the left half of the clamp 51 and the right half of the clamp 52. Then remove the lower detection cylinder 4, pour water and sand into the upper detection cylinder 3, and then place the coffee machine filter 1 to be tested. Finally, cover the lower detection cylinder 4 on the upper detection cylinder 3 and press the coffee machine filter 1 tightly. Then, use the clamp 5 to lock the upper and lower detection cylinders 3 and 4, and then turn it over and place it on the bracket 2 so that the clamping rod 55 of the clamp 5 is locked in.

[0074] Step 2: First, observe whether there are sand particles in the transparent observation bottle 41 in a static state to preliminarily determine the quality of the coffee machine filter 1. If no sand particles are observed, start the air pump 61 to blow air into the air cover 33 through the air charging tube 62, causing the fan blades 35 to rotate and the stirring structure 31 to rotate via the prismatic sleeve 34 to perform a second test for sand agitation. Then, observe again in a dynamic state whether there are any sand particles falling into the transparent observation bottle 41. If no sand particles are still observed, press down the eccentric swinging structure 32, and use the stirring structure 31 to drive the eccentric swinging structure 32 to rotate, causing the detection mechanism to shake, and perform a third test to again observe whether there are any sand particles falling into the transparent observation bottle 41.

[0075] Step 3: Determine the quality of the coffee machine filter 1 through triple testing and record it, then repeat step 1 to replace the coffee machine filter 1;

[0076] Step 4: Regularly remove the transparent observation bottle 41, push up the push ring 46 to lift the sand retaining bucket 43, and the sand on the periphery slides toward the middle along the inclined surface of the bottom of the lower detection tube 4 and is discharged from the bottom of the lower detection tube 4. After all the sand is discharged, pull down the push ring 46 to make the bottom of the sand retaining bucket 43 fit the bottom of the inner wall of the lower detection tube 4, and then the inspection can be carried out immediately.

[0077] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0078] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0079] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A production testing device for coffee machine filters, comprising a testing mechanism for placing the coffee machine filters for testing, and a bracket for supporting the testing mechanism, characterized in that: The detection mechanism includes: The upper detection cylinder is filled with water and sand simulating coffee bean particles. A stirring mechanism is also provided inside the upper detection cylinder to agitate the sand particles to increase their chance of passing through the coffee machine filter. A driving member is mounted on the top of the upper detection cylinder to rotate the stirring mechanism. An eccentric swinging structure is mounted on the top of the stirring structure to cause the entire detection mechanism to oscillate using centrifugal force during rotation. The eccentric swinging structure can be selectively driven or not driven by the stirring mechanism. a lower detection cylinder, which cooperates with the upper detection cylinder to clamp the coffee machine filter therebetween, and the lower detection cylinder is used to receive and observe water and sand that leaks through the coffee machine filter; The clamp is used to connect and fix the upper detection tube and the lower detection tube, and the clamp is mounted on the bracket for use, and the bracket elastically supports the clamp to increase the swing amplitude of the detection mechanism; The bracket is provided with a pneumatic power source for driving the driving member in a split manner to avoid the influence of the shaking of the detection mechanism on the pneumatic power source; The stirring structure includes a stirring rod and a stirring blade fixed at its bottom end, and the stirring blade is blade-shaped and causes the sand to churn when rotating; The driving member includes a wind cover fixedly connected to the top of the upper detection cylinder by nuts and studs, a prismatic sleeve is fixedly provided on the surface of the stirring rod and located at the top of the upper detection cylinder, and the prismatic sleeve passes through the top of the wind cover, and a fan blade axially sleeved outside the prismatic sleeve rotates in the wind cover, one side of the wind cover is tangentially connected to an air inlet nozzle, and the other side of the wind cover is tangentially opened with an air outlet, and air is blown into the wind cover from the air inlet nozzle to drive the fan blade to rotate; The eccentric swing structure includes a pendulum rod, one end of which is provided with a prismatic hole adapted to the prismatic sleeve, a magnetic ring is bonded inside the pendulum rod and on the top of the prismatic hole, the magnetic force of the magnetic ring prevents the pendulum rod from sliding down on its own and connecting with the prismatic sleeve, and the prismatic hole is covered with the prismatic sleeve by pressing the pendulum rod downward, and the other end of the pendulum rod is threadedly connected to a counterweight block.

2. The coffee machine filter production and detection device according to claim 1, characterized in that: The bottom of the lower detection cylinder is threadedly connected to a transparent observation bottle, and a sand collecting hopper is installed inside the lower detection cylinder. The sand collecting hopper is used to gather the fallen sand particles to the middle and discharge them into the transparent observation bottle. The bottom of the inner cavity of the lower detection cylinder is also provided with a sand retaining hopper covering the outside of the bottom end of the sand collecting hopper. The sand retaining hopper is used to isolate the sand particles from the periphery to prevent the sand particles from entering the sand collecting hopper when the detection mechanism is flipped.

3. The coffee machine filter production and detection device according to claim 2, characterized in that: The bottom of the sand retaining hopper is fixedly connected to a plurality of connecting rods, which slide through the bottom of the lower detection cylinder and are connected by a pushing ring. The bottom of the sand retaining hopper is separated from or fitted to the inner wall of the lower detection cylinder by pushing and pulling the pushing ring. The bottom of the lower detection cylinder is tapered, so that when the sand retaining hopper rises and separates from the lower detection cylinder, the sand particles on the periphery of the sand retaining hopper slide toward the center and are discharged.

4. The coffee machine filter production and detection device according to claim 2, characterized in that: A plurality of through holes are evenly arranged on the top of the sand collecting hopper, and a fine filter covering the through holes is pasted on the outer wall of the sand collecting hopper, and the mesh of the fine filter is smaller than the mesh of the coffee machine filter. When the detection mechanism is flipped, the water outside the sand collecting hopper flows back into the upper detection cylinder through the through holes.

5. The coffee machine filter production and detection device according to claim 1, characterized in that: The clamp comprises a left half clamp and a right half clamp hinged to each other at one end, the other end of the right half clamp is rotatably connected to a T-shaped stud, and one end of the T-shaped stud is threadedly connected to a butterfly nut, the other end of the left half clamp is provided with a hanging block, and a notch adapted to the T-shaped stud is opened inside the hanging block, and the T-shaped stud is inserted into the notch and the butterfly nut is tightened to fasten the upper detection tube and the lower detection tube; A sealing gasket is also provided on the bottom surface of the upper detection cylinder, and a groove for positioning the coffee machine filter is provided on the bottom surface of the sealing gasket; the opposing surfaces of the upper detection cylinder and the lower detection cylinder both have convex edges extending outward, the outer surface of the convex edge is a slope, and a wear-resistant metal ring is embedded and fixed on the slope, and when the clamp is tightened, the wear-resistant metal ring is squeezed to compress the upper detection cylinder and the lower detection cylinder.

6. The coffee machine filter production and detection device according to claim 1, characterized in that: The bracket includes an upper ring and a lower ring, and multiple vertical plates are connected between the upper ring and the lower ring. An air pump is fixedly connected between the vertical plates on one side through a mounting plate. An inflation pipe is connected between the air outlet end and the air inlet nozzle of the air pump. A dust filter cover is provided at the air inlet end of the air pump. A starting switch is fixedly connected between the vertical plates on the other side through a mounting plate. The starting switch is connected to an external power supply and to the air pump through a wire.

7. The coffee machine filter production and detection device according to claim 6, characterized in that: The top of the upper ring is elastically connected to multiple U-shaped seats through multiple evenly distributed springs. The sides of the clamp and the upper detection tube are fixedly connected to multiple clamping rods. The detection mechanism is placed on the bracket by placing the clamping rods into the U-shaped seats.

8. A method for detecting a coffee machine filter based on the production detection device according to any one of claims 1 to 7, characterized in that: The following steps are involved: Step 1: First, place the upper test cylinder upside down on the bracket, open the clamp, pour water and sand into the upper test cylinder, then place the coffee machine filter to be tested. Then, cover the lower test cylinder on the upper test cylinder and press the coffee machine filter tightly. Then, lock the upper and lower test cylinders with the clamp, turn it over and place it on the bracket; Step 2: First, observe whether there is sand in the transparent observation bottle in a static state to preliminarily judge the quality of the coffee machine filter. If no sand is observed, activate the pneumatic power source to rotate the stirring mechanism through the driving member to stir the sand for a second test, and again observe whether there is sand falling into the transparent observation bottle in a dynamic state. If no sand is still observed, press down the eccentric swinging mechanism, and use the stirring mechanism to drive the eccentric swinging mechanism to rotate, causing the detection mechanism to shake for a third test, and again observe whether there is sand falling into the transparent observation bottle. Step 3: Use triple testing to determine the quality of the coffee machine filter and record it, then repeat step 1 to replace the coffee machine filter.

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