Stirring force testing device

Abstract

The invention discloses a stirring force testing device, a driving assembly comprises a motor body, a ball screw and a nut seat, the ball screw is connected with the motor body, and the nut seat sleeves the peripheral wall of the ball screw; the stirring assembly comprises a rotating motor, a fixing assembly, a fine adjustment assembly and a stirring rod, the rotating motor is fixedly connected with the nut seat, the fixing assembly is connected with the output end of the rotating motor, the fine adjustment assembly is connected with the fixing assembly, one end of the stirring rod is connected with the fine adjustment assembly, and the other end of the stirring rod and the positioning assembly are coaxially arranged; the detection assembly comprises a pressure bearing device and a positioning assembly, the pressure bearing device is arranged at the bottom of the positioning assembly, and the positioning assembly is provided with a groove used for installing the cup body. The rotating force rubs the cup bottom, the pressure bearing device arranged at the bottom of the positioning assembly displays the stress condition, a worker compares the abrasion condition of the cup bottom and records data, and the reasonable abrasion-resistant interval of the coffee cup is measured.

Description

Technical Field

[0001] The invention relates to the technical field of cup wear resistance detection, and in particular to a stirring force testing device. Background Art

[0002] With the accelerated pace of life, most office workers generally choose disposable brewed drinks in order to save time. Therefore, disposable coffee and coffee cups are popular among white-collar workers. However, the existing coffee dissolves slowly during the brewing process, and the coffee needs to be stirred manually with a hand-held stirring rod. During the stirring process, the stirring rod will inevitably wear the bottom of the coffee cup, causing the coffee cup to leak during use. It is necessary to test the wear resistance of the stirring rod on the coffee cup. However, since the coffee is stirred manually with a hand-held stirring rod, it is impossible to ensure accurate and continuous friction to perform pressure testing on the waterproof layer inside the coffee cup, and it is impossible to obtain accurate test data. Therefore, most factories will not test the wear resistance of coffee cups, resulting in manufacturers being unable to know the specific wear resistance standards of coffee cups. Summary of the invention

[0003] In response to the technical problem that coffee cups lack necessary wear resistance standards, the present invention proposes a stirring force testing device, in which a rotating motor drives a stirring rod to rotate, and the rotating force rubs the bottom of the cup. By testing friction forces of different sizes, a reasonable wear resistance range of the coffee cup is measured.

[0004] The technical solution adopted by the present invention is as follows: a stirring force testing device, comprising a frame, a driving assembly, a stirring assembly and a detection assembly, wherein: the driving assembly comprises a motor body, a ball screw and a nut seat, the ball screw is connected to the motor body, and the nut seat is sleeved on the outer peripheral wall of the ball screw; the stirring assembly comprises a rotating motor, a fixing assembly, a fine-tuning assembly and a stirring rod, the rotating motor is fixedly connected to the nut seat, the fixing assembly is connected to the output end of the rotating motor, the fine-tuning assembly is connected to the fixing assembly, one end of the stirring rod is connected to the fine-tuning assembly, and the other end of the stirring rod is coaxially arranged with the positioning assembly; the detection assembly comprises a pressure bearer and a positioning assembly, the pressure bearer is arranged at the bottom of the positioning assembly, and the positioning assembly is provided with a groove for mounting a cup body.

[0005] Optionally, the fine-tuning assembly includes a linear motor, a guide rod, a support block and a clamping rod, the guide rod is fixedly connected to the fixed assembly, the linear motor moves axially along the guide rod, the support block is installed on the linear motor, one end of the clamping rod is connected to the support block, and the other end of the clamping rod clamps the stirring rod.

[0006] Optionally, the number of the guide rods is two, the linear motor is mounted on one of the guide rods, one side of the support block is fixedly connected to the linear motor, and the other side of the support block is slidably connected to the other guide rod via a shaft sleeve.

[0007] Optionally, the fixing assembly includes a first clamping block and a second clamping block fixedly connected to the first clamping block, the first clamping block is provided with a first left block and a first right block detachably connected to the first left block, the first left block and the first right block cooperate to form a first through hole for clamping the output end of the rotating motor, the second clamping block is provided with a second left block and a second right block detachably connected to the second left block, the second left block and the second right block cooperate to form a second through hole for clamping the guide rod.

[0008] Optionally, one end of the first left block and one end of the first right block are integrally connected, and the other end of the first left block and the other end of the first right block are both provided with a first connecting hole for the first connecting member to pass through; one end of the second left block and one end of the second right block are integrally connected, and the other end of the second left block and the other end of the second right block are both provided with a second connecting hole for the second connecting member to pass through.

[0009] Optionally, the clamping rod is provided with a clamping groove, and two side walls of the clamping groove are provided with a plurality of third connecting holes for the third connecting member to pass through at intervals along the length direction, the third connecting holes penetrate the clamping groove, and the stirring rod cooperates with the clamping groove.

[0010] Optionally, the positioning assembly includes a first positioning member and a plurality of second positioning members, the first positioning member is provided with the groove, the groove wall is provided with a plurality of positioning holes spaced apart along the circumferential direction, and the positioning holes are movably matched with the second positioning members in a one-to-one correspondence.

[0011] Optionally, the inner peripheral wall of the positioning hole is provided with an internal thread, and the outer peripheral wall of the second positioning member is provided with an external thread matching the internal thread; or the second positioning member is connected to a cylinder or a hydraulic cylinder.

[0012] Optionally, an arc-shaped plate is provided at one end of the second positioning member located in the groove, and the concave surface of the arc-shaped plate faces the cup body.

[0013] Optionally, the frame includes a first support frame and a second support frame vertically connected to the first support frame, the motor body is installed on the top surface of the second support frame, the output end of the motor body passes through the second support frame and is connected to the ball screw, the first support frame is arranged parallel to the ball screw, a motor seat for installing a rotating motor is provided on one side of the nut seat, a slider is provided on the other side of the nut seat, and the first support frame is provided with a slide rail that slides with the slider.

[0014] The beneficial effects of the present invention are as follows: before testing, a paper cup filled with coffee is placed inside the groove of the positioning component, and the weight of the pressure bearing device is reset to zero. The pressure bearing device can be an electronic scale with a pressure sensor installed inside. The motor body drives the stirring component to move to the top of the cup body through the nut seat, and the fine-tuning component drives the stirring rod to descend until the stirring rod touches the bottom of the cup. The rotating motor is turned on to drive the stirring rod to rotate. The rotating force rubs the bottom of the cup. The pressure bearing device set at the bottom of the positioning component displays the force condition. The staff compares the wear condition of the bottom of the cup and records the data. The fine-tuning component can adjust the force range of the stirring rod on the bottom of the cup. Through tests of different friction forces, the reasonable wear resistance range of the coffee cup is measured. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A schematic diagram of the structure of a stirring force testing device provided in an embodiment of the present invention;

[0016] Figure 2 A schematic diagram of a clamping rod of a stirring force testing device according to an embodiment of the present invention.

[0017] The marks in the accompanying drawings are: 1. frame; 2. motor body; 3. ball screw; 4. nut seat; 5. rotating motor; 6. pressure bearer; 7. linear motor; 8. guide rod; 9. support block; 10. clamping rod; 11. first clamping block; 12. second clamping block; 13. clamping groove; 14. third connecting hole; 15. stirring rod; 16. first positioning piece; 17. groove; 18. first support frame; 19. second support frame; 20. motor seat; 21. slider; 22. slide rail; 23. positioning hole. DETAILED DESCRIPTION

[0018] The present application is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0019] like Figure 1 and 2As shown, a stirring force testing device includes a frame 1, a driving component, a stirring component and a detection component, wherein: the driving component includes a motor body 2, a ball screw 3 and a nut seat 4, the ball screw 3 is connected to the motor body 2, and the nut seat 4 is sleeved on the outer peripheral wall of the ball screw 3; the stirring component includes a rotating motor 5, a fixing component, a fine-tuning component and a stirring rod 15, the rotating motor 5 is fixedly connected to the nut seat 4, the fixing component is connected to the output end of the rotating motor 5, the fine-tuning component is connected to the fixing component, one end of the stirring rod 15 is connected to the fine-tuning component, and the other end of the stirring rod 15 is coaxially arranged with the positioning component; the detection component includes a pressure bearer 6 and a positioning component, the pressure bearer 6 is arranged at the bottom of the positioning component, and the positioning component is provided with a groove 17 for mounting a cup body. Before the test, place the paper cup filled with coffee inside the groove 17 of the positioning component, and reset the weight of the pressure device 6. The pressure device 6 can be an electronic scale with a pressure sensor installed inside. The motor body 2 drives the stirring component to move to the top of the cup body through the nut seat 4. The fine-tuning component drives the stirring rod 15 down until the stirring rod 15 touches the bottom of the cup. Turn on the rotating motor 5, so that the rotating motor 5 drives the stirring rod 15 to rotate. The rotating force rubs the bottom of the cup. The pressure device 6 set at the bottom of the positioning component displays the force condition. The staff compares the wear condition of the bottom of the cup and records the data. The fine-tuning component can adjust the force range of the stirring rod 15 on the bottom of the cup. By testing different friction forces, the reasonable wear resistance range of the coffee cup can be measured. The driving component can also be a linear motor 7.

[0020] In this embodiment, if Figure 1 As shown, the fine-tuning assembly includes a linear motor 7, a guide rod 8, a support block 9 and a clamping rod 10. The guide rod 8 is fixedly connected to the fixed assembly, and the linear motor 7 moves axially along the guide rod 8. The support block 9 is installed on the linear motor 7. One end of the clamping rod 10 is connected to the support block 9, and the other end of the clamping rod 10 clamps the stirring rod 15. When the motor body 2 drives the stirring assembly to move to the top of the cup body through the nut seat 4, the linear motor 7 drives the stirring rod 15 to drop to the bottom of the cup, and the rotating motor 5 is turned on, so that the rotating motor 5 drives the stirring rod 15 to rotate, and the rotating force rubs the bottom of the cup. There are two guide rods 8, and the linear motor is installed on one of the guide rods 8. One side of the support block 9 is fixedly connected to the linear motor, and the other side of the support block 9 is slidably connected to the other guide rod 8 through a sleeve. The sleeve is set on the outer peripheral wall of the guide rod 8, and the support block 9 is fixedly connected to the sleeve. The sleeve can be made of flexible material to reduce noise.

[0021] In this embodiment, if Figure 1As shown, the fixing assembly includes a first clamping block 11 and a second clamping block 12 fixedly connected to the first clamping block 11, the first clamping block 11 is provided with a first left block and a first right block detachably connected to the first left block, the first left block and the first right block cooperate to form a first through hole for clamping the output end of the rotating motor 5, the second clamping block 12 is provided with a second left block and a second right block detachably connected to the second left block, the second left block and the second right block cooperate to form a second through hole for clamping the guide rod 8. The second clamping block 12 is mounted on the lower bottom surface of the first clamping block 11 by screws, and the design of the first clamping block 11 and the second clamping block 12 enables the rotating motor 5 to drive the fine adjustment assembly and the stirring rod 15 to rotate synchronously. One end of the first left block is integrally connected with one end of the first right block, and the other end of the first left block and the other end of the first right block are both provided with a first connecting hole for the first connecting member to pass through; one end of the second left block is integrally connected with one end of the second right block, and the other end of the second left block and the other end of the second right block are both provided with a second connecting hole for the second connecting member to pass through. The first connecting hole and the second connecting hole can be screw holes, the first connecting member and the second connecting member can be screw rods, and the first clamping block 11 and the second clamping block 12 can quickly separate and assemble the rotating motor 5 and the guide rod 8.

[0022] like Figure 2 As shown, the clamping rod 10 is provided with a clamping groove 13, and a plurality of third connection holes 14 for the third connection member to pass through are provided at intervals along the length direction on both side walls of the clamping groove 13, and the third connection holes 14 penetrate the clamping groove 13, and the stirring rod 15 cooperates with the clamping groove 13. The length of the stirring rod 15 exposed outside the clamping groove 13 can be set according to the depth of the cup body, the third connection member can be a screw, and the third connection hole 14 can be a screw hole, and the two side walls of the clamping groove 13 are screwed by the third connection member to achieve the purpose of clamping the stirring rod 15.

[0023] like Figure 1 As shown, the positioning assembly includes a first positioning member 16 and a plurality of second positioning members, the first positioning member 16 is provided with the groove 17, the groove wall of the groove 17 is provided with a plurality of positioning holes 23 at intervals along the circumferential direction, and the positioning holes 23 are movably matched with the second positioning member in a one-to-one correspondence. The inner peripheral wall of the positioning hole 23 is provided with an internal thread, and the outer peripheral wall of the second positioning member is provided with an external thread matching the internal thread; or the second positioning member is connected to a cylinder or a hydraulic cylinder. By screwing in the second positioning member, the plurality of second positioning members are brought close to each other to limit the cup body and prevent the cup body from shaking. The second positioning member can also be connected to a cylinder or a hydraulic cylinder, and the second positioning members are driven close to each other by the cylinder or the hydraulic cylinder. An arc plate is provided at one end of the second positioning member located in the groove 17, and the concave surface of the arc plate faces the cup body. The shapes of the arc plate and the cup body fit each other, and the limiting effect is better.

[0024] like Figure 1As shown, the frame 1 includes a first support frame 18 and a second support frame 19 vertically connected to the first support frame 18, the motor body 2 is mounted on the top surface of the second support frame 19, the output end of the motor body 2 passes through the second support frame 19 and is connected to the ball screw 3, the first support frame 18 is arranged in parallel with the ball screw, a motor seat 20 for mounting the rotating motor 5 is provided on one side of the nut seat 4, a slider 21 is provided on the other side of the nut seat 4, and the first support frame 18 is provided with a slide rail 22 slidably matched with the slider 21. The slider cooperates with the slide rail to make the motor body more stable in adjusting the axial displacement of the stirring assembly.

[0025] It is understandable that the specific embodiments described above are only used to explain the relevant inventions, rather than to limit the inventions. It should also be noted that, for ease of description, only the parts related to the invention are shown in the drawings. Multiple technical solutions in the same embodiment, as well as multiple technical solutions in different embodiments, can be arranged and combined to form new technical solutions without contradictions or conflicts. All equivalent structural transformations made using the contents of the specification and drawings of the present invention, directly or indirectly used in other related technical fields, are similarly included in the protection scope of the present invention.

Claims

1. A stirring force testing device, characterized in that: It includes a frame, a driving assembly, a stirring assembly and a detection assembly, wherein: The driving assembly comprises a motor body, a ball screw and a nut seat, wherein the ball screw is connected to the motor body, and the nut seat is sleeved on the outer peripheral wall of the ball screw; The stirring assembly comprises a rotating motor, a fixing assembly, a fine-tuning assembly and a stirring rod, wherein the rotating motor is fixedly connected to the nut seat, the fixing assembly is connected to the output end of the rotating motor, the fine-tuning assembly is connected to the fixing assembly, one end of the stirring rod is connected to the fine-tuning assembly, and the other end of the stirring rod is coaxially arranged with the positioning assembly; The detection assembly includes a pressure bearer and a positioning assembly. The pressure bearer is arranged at the bottom of the positioning assembly, and the positioning assembly is provided with a groove for mounting the cup body.

2. The stirring force testing device according to claim 1, characterized in that: The fine-tuning assembly includes a linear motor, a guide rod, a support block and a clamping rod. The guide rod is fixedly connected to the fixed assembly, the linear motor moves axially along the guide rod, the support block is installed on the linear motor, one end of the clamping rod is connected to the support block, and the other end of the clamping rod clamps the stirring rod.

3. The stirring force testing device according to claim 2, characterized in that: There are two guide rods, the linear motor is mounted on one of the guide rods, one side of the support block is fixedly connected to the linear motor, and the other side of the support block is slidably connected to the other guide rod via a shaft sleeve.

4. The stirring force testing device according to claim 3, characterized in that: The fixing assembly includes a first clamping block and a second clamping block fixedly connected to the first clamping block, the first clamping block is provided with a first left block and a first right block detachably connected to the first left block, the first left block and the first right block cooperate to form a first through hole for clamping the output end of the rotating motor, the second clamping block is provided with a second left block and a second right block detachably connected to the second left block, the second left block and the second right block cooperate to form a second through hole for clamping the guide rod.

5. The stirring force testing device according to claim 4, characterized in that: One end of the first left block and one end of the first right block are integrally connected, and the other end of the first left block and the other end of the first right block are both provided with a first connecting hole for the first connecting member to pass through; one end of the second left block and one end of the second right block are integrally connected, and the other end of the second left block and the other end of the second right block are both provided with a second connecting hole for the second connecting member to pass through.

6. The stirring force testing device according to claim 2, characterized in that: The clamping rod is provided with a clamping groove, and the two side walls of the clamping groove are provided with a plurality of third connecting holes for the third connecting member to pass through at intervals along the length direction, the third connecting holes penetrate the clamping groove, and the stirring rod cooperates with the clamping groove.

7. The stirring force testing device according to claim 1, characterized in that: The positioning assembly includes a first positioning member and a plurality of second positioning members, the first positioning member is provided with the groove, the groove wall of the groove is provided with a plurality of positioning holes spaced apart along the circumferential direction, and the positioning holes are movably matched with the second positioning members in a one-to-one correspondence.

8. The stirring force testing device according to claim 7, characterized in that: The inner peripheral wall of the positioning hole is provided with an internal thread, and the outer peripheral wall of the second positioning member is provided with an external thread matching the internal thread; or the second positioning member is connected to a cylinder or a hydraulic cylinder.

9. The stirring force testing device according to claim 7, characterized in that: An arc-shaped plate is provided at one end of the second positioning member located in the groove, and the concave surface of the arc-shaped plate faces the cup body.

10. The stirring force testing device according to claim 1, characterized in that: The frame includes a first support frame and a second support frame vertically connected to the first support frame, the motor body is installed on the top surface of the second support frame, the output end of the motor body passes through the second support frame and is connected to the ball screw, the first support frame is arranged parallel to the ball screw, a motor seat for installing a rotating motor is provided on one side of the nut seat, a slider is provided on the other side of the nut seat, and the first support frame is provided with a slide rail that slides with the slider.

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