A pencil sharpener tester

Abstract

The invention relates to a pencil sharpener tester, comprising a sharpening mechanism and a lead-breaking mechanism, wherein the lead-breaking mechanism comprises a lead-breaking knife (1), the lead-breaking knife (1) is located at one side of the sharpening mechanism, and the lead-breaking mechanism is used to break the pen tip sharpened by the sharpening mechanism. The advantages are: a higher degree of automation and the ability to more realistically simulate actual use conditions.

Description

Technical Field

[0001] The invention relates to the technical field of pencil sharpener testing, in particular to a pencil sharpener testing instrument. Background Art

[0002] Pencil sharpener testing is an important means of detecting the quality of pencil sharpeners, and may be used in design, production, sampling and other links. At present, the pencil sharpener industry already has pencil sharpener testing equipment or testing machines or testing devices with certain functions, but it mainly focuses on the machine to achieve the sharpening function, by breaking the tip of the pencil with the sharpening number, and then repeating the automatic sharpening, and repeating the sharpening test in this way to simulate the actual use situation, but there is no more involvement, which restricts the degree of automation and performance of the test. The applicant believes that improving automation and more realistically simulating the actual use situation, and obtaining reference data in this way are important means for subsequently improving the efficiency of pencil sharpener research, optimizing pencil sharpener performance, and providing reference for production quality. Summary of the invention

[0003] 1. Technical issues

[0004] The technical problem to be solved by the present invention is to overcome the shortcomings and deficiencies of the above prior art and to provide a pencil sharpener tester with a higher degree of automation and the ability to more realistically simulate actual use conditions.

[0005] (II) Technical solution

[0006] In order to solve the above technical problems, the present invention proposes a pencil sharpener tester, and the specific technical solution is as follows:

[0007] The invention provides a pencil sharpener tester, comprising a curling mechanism and a lead breaking mechanism, wherein the lead breaking mechanism comprises a lead breaking knife and a lateral moving structure, wherein the lateral moving structure is connected to the lead breaking knife, the lead breaking knife is located at one side of the curling mechanism, and the lead breaking mechanism is used for breaking a pen tip sharpened by the curling mechanism.

[0008] Preferably, it further comprises a curling force testing mechanism, which is provided with a mounting structure for mounting a pencil sharpener, and is used for detecting a feed force or a curling force or both of them exerted on the pencil sharpener mounted therein.

[0009] Preferably, the sharpening force testing structure includes a pencil sharpener clamp, a feed force sensor, and a torque sensor connected in sequence from top to bottom.

[0010] Preferably, it further comprises a dust suction mechanism, wherein the dust suction mechanism is provided with a dust suction end, and the dust suction end is located at the periphery of the pencil sharpener.

[0011] Preferably, the dust collection mechanism comprises a dust collector and a dust collection tube, one end of the dust collection tube is connected to the dust collector, and the other end of the dust collection tube is the dust collection end.

[0012] Preferably, the curling mechanism includes an up and down moving part, a feeding part and a rotating part, the feeding part and the rotating part are both arranged on the moving structure of the up and down moving part, the up and down moving part is used to drive the feeding part and the rotating part to move up and down together, the feeding part is connected to the rotating part, the feeding part is used to drive the rotating part to feed up and down, and the rotating part is used to install the pencil and drive the pencil to rotate.

[0013] Preferably, it also includes a vertical mounting plate and a movable plate connected to the vertical mounting plate track, the movable plate supports and is installed with a support platform, the support platform passes through the vertical mounting plate, and is divided into a front and a rear part by the vertical mounting plate, recorded as a front part and a rear part, the front part is installed with a feeding part and a rotating part, the rear part is installed with a first power structure and a second power structure, the second power structure and the first power structure are distributed up and down with the support platform as the boundary, the first power structure is connected to the rotating part through a transmission structure, the second power structure is connected to the vertical mounting plate, the upper and lower driving ends of the second power structure are connected to the rear, and the second power structure is used to drive the overall movement formed by the connection of the support platform and the movable plate up and down via the track connection.

[0014] Preferably, the track connection comprises a track arranged on the front side of the vertical mounting plate, and the movable plate cooperates with the track.

[0015] Preferably, the lead breaking mechanism includes a first lateral moving structure, a second lateral moving structure and a pen tip gauge plate, the first lateral moving structure is used to drive the second lateral moving structure and the pen tip gauge plate to move back and forth laterally, the lead breaking knife is connected to the second lateral moving structure, and the lead breaking knife is located below the pen tip gauge plate, the pen tip gauge plate is provided with a socket, the socket is used to cooperate with the pen tip of the pencil, the cooperation makes the sharpened tip of the pen tip exposed on the lower side of the pen tip gauge plate.

[0016] Preferably, the pen tip gauge is provided with a sensor for detecting whether the tip exposed on the lower side of the pen tip gauge is present.

[0017] (III) Technical Effect

[0018] The use of a pencil sharpener tester disclosed in the present invention can effectively solve the deficiencies of the prior art.

[0019] In the present invention, continuous rolling can be performed, or rolling can be completed, cut, re-rolled, and cut again, and this cycle can be repeated to obtain detection data for a certain number of cycles, thereby simulating a real usage environment. Compared with the existing technology, the degree of automation is higher and the actual usage situation can be simulated more realistically. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional schematic diagram of the pencil sharpener tester of the present invention.

[0021] Figure 2 This is one of the partial three-dimensional schematic diagrams of the pencil sharpener tester of the present invention.

[0022] Figure 3 This is the second partial three-dimensional schematic diagram of the pencil sharpener tester of the present invention.

[0023] Figure 4 The third partial stereoscopic schematic diagram of the pencil sharpener tester of the present invention.

[0024] Figure 5 It is one of the three-dimensional schematic diagrams of the lead breaking mechanism.

[0025] Figure 6 This is the second three-dimensional schematic diagram of the lead breaking mechanism.

[0026] Figure 7 This is the third three-dimensional schematic diagram of the lead breaking mechanism.

[0027] Figure 8 It is a three-dimensional schematic diagram mainly showing the vertical mounting plate.

[0028] Fig. 9 It is a three-dimensional schematic diagram of the pencil sharpener tester of the present invention after being covered with a shell sheet metal.

[0029] [Description of Reference Numerals]

[0030] 1. Lead cutter; 2. First lateral moving structure; 3. Second lateral moving structure; 4. Pen tip gauge plate; 5. Socket; 6. Sensor; 7. Pencil sharpener fixture; 8. Feed force sensor; 9. Torque sensor; 10. Vacuum cleaner; 11. Vacuum tube; 12. Vertical mounting plate; 13. Moving plate; 14. Support platform; 15. L-shaped cover plate; 16. Rotating chuck; 17. Moving block; 18. Screw; 19. First motor; 20. First power structure; 21. Second power structure; 22. Synchronous belt; 23. Synchronous wheel; 24. Rotating shaft; 25. First bracket; 26. Second bracket; 27. First track; 28. Second track; 29. ​​Third track; 30. Support block; 31. Control console; 32. Touch screen; 33. Control switch; 34. Upper support plate; 35. Reinforcement plate; 36. Machine table; 37. Opening; 38. Moving seat. DETAILED DESCRIPTION

[0031] In order to better explain the present invention and facilitate understanding, the present invention is described in detail below through specific implementation modes in conjunction with the accompanying drawings.

[0032] like Fig. 9 As shown, it is a three-dimensional schematic diagram of the pencil sharpener tester of the present invention after being covered with a housing sheet metal. For the sake of simplicity, the detailed structure is marked in other drawings. Fig. 9 Just do some simple marking.

[0033] like Figure 1 Shown is a three-dimensional schematic diagram of the main structure of the pencil sharpener tester of the present invention.

[0034] Depend on Figure 1 It can be seen that the pencil sharpener tester of the present invention generally includes several major mechanisms, namely, a curling mechanism, a curling force testing mechanism, a dust suction mechanism, and a lead breaking mechanism. In this example, these structures are intensively controlled, for example, by using a PLC control system. The PLC control system is a common technology in the field of mechanical motion control and will not be elaborated here.

[0035] In this example, the curling mechanism includes an up and down moving part, a feeding part and a rotating part. The feeding part and the rotating part are both arranged on the moving structure of the up and down moving part. The up and down moving part is used to drive the feeding part and the rotating part to move up and down together. The feeding part is connected to the rotating part. The feeding part is used to drive the rotating part to feed up and down. The rotating part is used to install the pencil and drive the pencil to rotate.

[0036] The vertical mounting plate 12 and the movable plate 13 connected to the track of the vertical mounting plate 12 are also included. The movable plate 13 supports and installs a supporting platform 14, and the supporting platform 14 passes through the vertical mounting plate 12. The vertical mounting plate 12 is provided with an opening 37 for the supporting platform 14 to pass through. The opening 37 is as shown in FIG. Figure 8 As shown. The support platform 14 is divided into two parts, front and back, by the vertical mounting plate 12, which are denoted as the front and rear. The front part is equipped with a feeding part and a rotating part, and the rear part is equipped with a first power structure 20 and a second power structure 21. The second power structure 21 and the first power structure 20 are distributed up and down with the support platform 14 as the boundary. The first power structure 20 is connected to the rotating part through a transmission structure, and the second power structure 21 is connected to the vertical mounting plate 12. The upper and lower driving ends of the second power structure 21 are connected to the rear part. The second power structure 21 is used to drive the support platform 14 and the moving plate 13 to form a whole connected up and down via a track. In this way, the structure is compact, which is conducive to the center of gravity of the overall movement, and is more conducive to the stability and reliability of the up and down reciprocating motion, thereby facilitating the improvement and guarantee of the test accuracy. In order to make the stability of the vertical mounting plate 12 better, a reinforcing plate 35 is also provided on the rear side of the vertical mounting plate 12.

[0037] The track connection includes a track arranged on the front side of the vertical mounting plate 12 , and the movable plate 13 cooperates with the track. In this example, a linear guide rail is used, which is denoted as the first track 27 , and a movable seat 38 is installed on the first track 27 .

[0038] The above constitutes the curling mechanism of this example.

[0039] Furthermore, an upper support plate 34 is provided between the second power structure 21 and the vertical mounting plate 12 for connecting the two. The up and down reciprocating motion ends of the second power structure 21 are connected to the rear of the support platform 14, the first power structure 20 is located at the lower side of the rear, and the rotating end of the first power structure 20 passes through the rear and is located at the upper side of the rear, and is located on the inner side. The first power structure 20 is connected to the rotating part through a belt drive structure.

[0040] The first power structure 20 is an electric motor, and the belt transmission structure is a synchronous belt 22 transmission structure. The output end of the electric motor is connected to the synchronous belt 22, and the synchronous belt 22 passes through the opening 37 of the support platform 14 and then is connected to the rotating part.

[0041] An L-shaped cover plate 15 is installed on the support platform 14 to form a receiving cavity between the L-shaped cover plate 15 and the support platform 14. The synchronous belt 22 passes through the opening 37 of the support platform 14 and enters the receiving cavity, which is beneficial to protecting the synchronous belt 22 and ensuring the working accuracy of the synchronous belt 22.

[0042] The L-shaped cover plate 15 is provided with a first bracket 25, which includes a vertical plate and two horizontal plates arranged at both ends of the vertical plate, a screw rod 18 is connected between the two horizontal plates, a second track 28 is installed on the vertical plate, a moving block 17 is installed on the screw rod 18, and the moving block 17 is a screw rod 18 nut of the screw rod 18. A first motor 19 is installed on the upper side of the upper horizontal plate of the two horizontal plates, and the output end of the first motor 19 passes through the upper horizontal plate and is connected to the screw rod 18 through a coupling. The above structure constitutes the feeding part. For a more stable movement, the moving block 17 cooperates with the second track 28.

[0043] The rotating part includes a rotating shaft 24, a second bracket 26 is connected between the rotating shaft 24 and the moving block 17, the rotating shaft 24 is connected to the second bracket 26, the moving block 17 can drive the rotating shaft 24 to reciprocate up and down, the rotating shaft 24 is connected to a synchronous belt 22 wheel, the synchronous belt 22 wheel is located in the accommodating cavity, and is connected to the synchronous belt 22, such as Figure 4 As shown, a section of the synchronous belt 22 is cut off to expose the synchronous belt 22 wheel. Figure 4 For the purpose of schematic expression, no details are drawn. The rotating shaft 24 can be driven by the synchronous belt 22 wheel, and the rotating shaft 24 can reciprocate up and down relative to the synchronous belt 22 wheel under the drive of the moving block 17, so as to realize the feeding of the feed part and the rotation of the pencil at the same time, thereby completing the sharpening action. A pencil sharpener clamp 7 is installed at the lower end of the rotating shaft 24, and the pencil is clamped by the pencil sharpener clamp 7. Since the synchronous belt 22 and the synchronous belt 22 wheel are both arranged in the accommodating cavity, not only the transmission structure of the synchronous belt 22 is protected, which is conducive to ensuring the test accuracy, but also the safety is improved and it is not easy to be touched by human hands.

[0044] The cutting force testing mechanism is located at the lower side of the cutting mechanism. The cutting force testing mechanism provides a pencil sharpener clamp 7. The pencil sharpener is installed in the pencil sharpener clamp 7. A feed force sensor 8 and a torque sensor 9 are connected below the pencil sharpener clamp 7. Generally speaking, the pencil sharpener clamp 7, the feed force sensor 8, and the torque sensor 9 are connected in sequence from top to bottom and supported by the torque sensor 9. The torque sensor 9 is supported by the frame. The feed force sensor 8 is an S-type force sensor 6, such as an S-type force sensor with a model of dyly-103. The torque sensor 9 is a torque sensor with a model of dyjn-105. In this example, the cutting force testing mechanism is used to detect the feed force and cutting force of the pencil sharpener installed therein, rather than just detecting one force. As can be seen from the foregoing, the cutting force testing mechanism of this example has a compact structure and powerful functions.

[0045] This example is also provided with a dust suction mechanism, which includes a dust collector 10 and a dust suction pipe 11, one end of the dust suction pipe 11 is connected to the dust collector 10, and the other end of the dust suction pipe 11 is the dust suction end, which is located around the pencil sharpener clamp 7. In this way, the dust generated by sharpening can be better handled, reducing pollution and greatly reducing the risk of harming the health of users.

[0046] The lead-breaking mechanism includes a lead-breaking knife 1 and a transverse moving structure, the transverse moving structure is connected to the lead-breaking knife 1, the lead-breaking knife 1 is located on one side of the rolling mechanism, and the lead-breaking mechanism is used to break the pen tip that has been rolled by the rolling mechanism. In this example, the lead-breaking mechanism includes a first transverse moving structure 2, a second transverse moving structure 3, and a pen tip gauge plate 4, the first transverse moving structure 2 is used to drive the second transverse moving structure 3 and the pen tip gauge plate 4 to move back and forth transversely, the lead-breaking knife 1 is connected to the second transverse moving structure 3, and the lead-breaking knife 1 is located below the pen tip gauge plate 4, the pen tip gauge plate 4 is provided with a socket 5, the socket 5 is used to cooperate with the pen tip of the pencil, and the cooperation makes the tip of the pen tip that has been rolled out be exposed on the lower side of the pen tip gauge plate 4.

[0047] The moving end of the first transverse moving structure 2 is connected to a support block 30, the lower part of the support block 30 is connected to the moving end of the first transverse moving structure 2, the upper part of the support block 30 is connected to the second transverse moving structure 3, and the second transverse moving structure 3 and the first transverse moving structure 2 are arranged up and down and are located on the same side of the support block 30, so that the structure is compact and the movement is stable and reliable.

[0048] The moving end of the second lateral moving structure 3 is connected to the lead breaking knife 1, the pen tip gauge plate 4 is connected to the upper end of the support block 30, the lead breaking knife 1 is located on the lower surface of the pen tip gauge plate 4, and the moving end of the second lateral moving structure 3 drives the lead breaking knife 1 to move laterally along the lower surface of the pen tip gauge plate 4. In the initial state, the socket 5 is located in front of the lead breaking knife 1.

[0049] In order to make the lead cutter 1 work more stably and reliably, a third track 29 is provided between the lower surface of the pen tip gauge plate 4 and the outer side surface of the support block 30, and the lead cutter 1 is connected to the third track 29. Figure 6 A third track 29 is shown. Figure 7 The figure shows one side of the third track 29 removed. In conjunction with FIGS. 6 and 7 , the connection between the lead cutting knife 1 and the third track 29 can be clearly seen.

[0050] In order to determine whether the tip of the pencil is present, the pen tip gauge plate 4 is provided with a sensor 6. In this example, the sensor 6 is installed at a position of the third track 29 aligned with the socket 5. The sensor 6 is, for example, a through-beam fiber optic sensor, model pt ft-310. The two sides of the socket 5 are two oppositely arranged parts of the through-beam fiber optic sensor.

[0051] All the above components are supported by a frame, and the frame is provided with a machine platform 36, and the main structure of the pencil sharpener tester of the present invention is located on the machine platform 36. For operation, a control console 31 is also provided on the frame, and the control console 31 is equipped with electrical equipment such as a PLC control module, a touch screen 32, and a control switch 33.

[0052] The above structure can also refer to the attached Figure 2 , 3 , 5. Understanding.

[0053] The above-mentioned power structures or moving structures, if reciprocating linear movement, can use cylinders, oil cylinders, electric cylinders, screw rods 18, etc., if rotation, can use motors and other structures, which can be adopted by referring to the existing technology.

[0054] The thickness of each plate or structural member is determined by the load design requirements and is called a plate, not a limited thickness.

[0055] In order to facilitate maintenance or adapt to pencils of different sizes or both, multiple lead cutting mechanisms can be arranged around the curling mechanism, such as Figure 1 As shown, two lead breaking mechanisms are provided, which are respectively arranged on the left side and the rear side of the machine platform 36.

[0056] The working process of the pencil sharpener tester of the present invention can be referred to as follows:

[0057] The pencil sharpener fixture 7 installs the pencil sharpener, and the rotating chuck 16 installs the pencil. After the installation is completed, set the number of repetitions and start the test. First, the second power structure 21 drives the support platform 14 to descend, so that the pencil can contact the sharpening opening of the pencil sharpener. The first power structure 20 drives the synchronous belt 22 wheel to rotate through the synchronous belt 22, and the synchronous belt 22 wheel drives the rotating shaft 24 to rotate. The rotation of the rotating shaft 24 drives the rotating chuck 16 to rotate, so that the pencil sharpener starts to rotate and sharpen the pencil. During the sharpening process, the first motor 19 drives the lead screw 18 to rotate, so that the pencil rotates and is also subjected to the feed force and moves downward. During the sharpening process, the S-type force sensor 6 and the torque sensor 9 output the feed force and the sharpening force through the force condition of the pencil sharpener fixture 7 and record them in the PLC control system. Since the pencil has a length, in order to make the pencil rotate more stably and not easy to shake, a positioning plate can be added. The pencil passes through the positioning hole of the positioning plate, and the rotation direction of the pencil is limited by the positioning hole. When the sharpening is completed, the positioning plate is evacuated, so that the pencil rotates more stably.

[0058] After the curling is completed, the second power structure 21 drives the support platform 14 to rise, so that the rotating chuck 16 rises to the core breaking position, that is, the pen tip gauge plate 4 can be moved horizontally to the bottom of the pencil. When the rotating chuck 16 rises to the core breaking position, the second horizontal moving structure 3 drives the support block 30 to move, and the support block 30 drives the first horizontal moving structure 2 and the pen tip gauge plate 4 to move together, and the insertion hole 5 of the pen tip gauge plate 4 is moved to the bottom of the pencil. At this time, the insertion hole 5 and the pencil move up and down relative to each other, so that the pencil tip is inserted into the pen tip gauge plate 4. This up and down relative movement can be achieved by adding a motion structure to make the pen tip gauge plate 4 move upward, or by the rotating chuck 16 moving downward. The sensor determines whether the pencil tip is broken. If the pencil tip is not broken (it may be broken during rolling, so a judgment is made here, which is helpful to reflect the situation of rolling and to judge whether to start the lead-breaking knife 1). If the pencil tip is still there, the second lateral moving structure 3 pushes out the lead-breaking knife 1 to break the lead core. After the lead core is broken, the jack 5 is separated from the pencil in the opposite direction, and the lead-breaking mechanism is reset, and then the next cycle of rolling and breaking begins. When the set number of cycles is reached, the test is completed.

[0059] Working principle of high-precision force test: The S-type force sensor 6 and the torque sensor 9 are connected to the pencil sharpener clamp 7. The force transmitted to the clamp by the pencil sharpener is added to the force consumed in the conduction process to calculate the final force condition.

[0060] The above description is only an example of the present invention, so all equivalent changes or modifications made according to the structure, characteristics and principles described in the scope of the patent application of the present invention are included in the scope of the patent application of the present invention.

Claims

1. A pencil sharpener tester, comprising a sharpening mechanism, characterized in that: The lead-breaking mechanism also includes a lead-breaking knife (1), the lead-breaking knife (1) is located on one side of the rolling mechanism, and the lead-breaking mechanism is used to break the pen tip that has been rolled by the rolling mechanism; The curling mechanism includes an up-and-down moving part, a feeding part and a rotating part. The feeding part and the rotating part are both arranged on the moving structure of the up-and-down moving part. The up-and-down moving part is used to drive the feeding part and the rotating part to move up and down together. The feeding part is connected to the rotating part. The feeding part is used to drive the rotating part to feed up and down. The rotating part is used to install the pencil and drive the pencil to rotate. It also includes a vertical mounting plate (12) and a moving plate (13) connected to a track of the vertical mounting plate (12); the moving plate (13) supports and mounts a supporting platform (14); the supporting platform (14) passes through the vertical mounting plate (12) and is divided by the vertical mounting plate (12) into two parts, namely, a front part and a rear part, wherein the front part is provided with a feeding part and a rotating part, and the rear part is provided with a first power structure (20) and a second power structure (21); the second power structure (21) and the first power structure (20) are distributed up and down with the supporting platform (14) as a boundary; the first power structure (20) is connected to the rotating part via a transmission structure; the second power structure (21) is connected to the vertical mounting plate (12); the upper and lower driving ends of the second power structure (21) are connected to the rear part; the second power structure (21) is used to drive the whole formed by the connection of the supporting platform (14) and the moving plate (13) to move up and down via the track connection; The lead-breaking mechanism comprises a first lateral moving structure (2), a second lateral moving structure (3) and a pen tip gauge plate (4); the first lateral moving structure (2) is used to drive the second lateral moving structure (3) and the pen tip gauge plate (4) to move back and forth together in a lateral direction; a lead-breaking knife (1) is connected to the second lateral moving structure (3); the lead-breaking knife (1) is located below the pen tip gauge plate (4); the pen tip gauge plate (4) is provided with an insertion hole (5); the insertion hole (5) is used to cooperate with the pen tip of a pencil; the cooperation enables the sharpened tip of the pen tip to be exposed at the bottom of the pen tip gauge plate (4).

2. The pencil sharpener tester according to claim 1, characterized in that: The utility model also comprises a cutting force testing mechanism, which is provided with a mounting structure for mounting a pencil sharpener, and is used for detecting a feeding force or a cutting force or both of them to which the pencil sharpener mounted therein is subjected.

3. The pencil sharpener tester according to claim 2, characterized in that: The sharpening force testing structure comprises a pencil sharpener fixture (7), a feed force sensor (8), and a torque sensor (9) which are sequentially connected from top to bottom.

4. The pencil sharpener tester according to claim 1, characterized in that: The utility model also comprises a dust suction mechanism, wherein the dust suction mechanism is provided with a dust suction end, and the dust suction end is located at the periphery of the pencil sharpener.

5. The pencil sharpener tester according to claim 4, characterized in that: The dust suction mechanism comprises a dust collector (10) and a dust suction pipe (11), one end of the dust suction pipe (11) is connected to the dust collector (10), and the other end of the dust suction pipe (11) is the dust suction end.

6. The pencil sharpener tester according to claim 1, characterized in that: The track connection comprises a track arranged on the front side of the vertical mounting plate (12), and the movable plate (13) matches the track.

7. The pencil sharpener tester according to claim 1, characterized in that: The invention also comprises a sensor (6) for detecting whether the tip exposed on the lower side of the pen tip gauge plate (4) is present.

Images