Bottle cap screwing device of grinding bottle

Abstract

The utility model provides a bottle cap screwing device for a grinding bottle, and belongs to the technical field of grinding devices. The bottle cap screwing device is used for pressing and rotating a bottle cap of a grinding bottle and comprises a bottle cap clamping device, a rotating mechanism and a lifting mechanism. The bottle cap clamping device comprises a pressing plate and two clamping plates arranged on one side of the pressing plate in a spaced mode. A containing space used for containing a mounting rod on a bottle cap is defined by the two clamping plates and the pressing plate, and the two clamping plates are used for abutting against the two sides of the mounting rod correspondingly. The rotating mechanism is connected with the bottle cap clamping device and used for driving the bottle cap clamping device to rotate around the center axis of the bottle cap. The lifting mechanism is connected with the rotating mechanism and used for driving the rotating mechanism and the bottle cap clamping mechanism to ascend and descend. According to the bottle cap screwing device, the bottle cap can be pressed down and rotated, the bottle cap screwing device is suitable for a grinding bottle which can be opened and closed through pressing down and rotating, and the bottle cap of the grinding bottle can be screwed easily, conveniently and efficiently.

Description

Technical Field

[0001] This application relates to the field of grinding equipment technology, specifically to a bottle cap screwing device for grinding bottles. Background Technology

[0002] In the sample grinding production line, the sample and grinding rod need to be placed in a grinding bottle, then placed on a grinding machine for rotation. During rotation, the grinding rod grinds the sample. After grinding is complete, the sample and grinding rod are removed. During this process, both the insertion and removal of the sample and grinding rod require opening and closing the grinding bottle.

[0003] When opening or closing a grinding bottle, it is usually necessary to hold the bottle in place while screwing on the cap. Manually screwing on the cap is not only time-consuming and labor-intensive, but also difficult to standardize, often resulting in the cap not being fully opened or closed, thus affecting the efficiency of opening and closing and the seal between the bottle and cap after closing.

[0004] In view of this, it is necessary to design a cap screwing device for grinding bottles to solve the above problems. Summary of the Invention

[0005] In view of the technical problems existing in the background art, this application provides a bottle cap screwing device for pressing down and rotating the bottle cap of the grinding bottle.

[0006] This application provides a bottle cap screwing device for grinding bottles, used to press down and rotate the bottle cap of the grinding bottle, including a bottle cap clamping device, a rotating mechanism and a lifting mechanism;

[0007] The bottle cap clamping device includes a pressure plate and two clamping plates spaced apart on one side of the pressure plate; the two clamping plates and the pressure plate form a receiving space for accommodating the mounting rod on the bottle cap, and the two clamping plates are respectively used to abut against the two sides of the mounting rod;

[0008] The rotating mechanism is connected to the bottle cap clamping device and is used to drive the bottle cap clamping device to rotate around the central axis of the bottle cap.

[0009] The lifting mechanism is connected to the rotating mechanism and is used to drive the rotating mechanism and the bottle cap clamping device to lift and lower.

[0010] In the technical solution of this application embodiment, by setting a bottle cap clamping device, a rotating mechanism, and a lifting mechanism, the lifting mechanism can drive the rotating mechanism and the bottle cap clamping device to move up and down as a whole, and the bottle cap clamping device can clamp the mounting rod in the bottle cap to realize the pressing operation of the mounting rod; at the same time, the rotating mechanism can drive the bottle cap clamping device and the mounting rod in the bottle cap to rotate, thereby realizing the rotation operation of the mounting rod. For grinding bottles with mounting rods in the bottle cap, and which can be opened or closed by pressing and rotating the mounting rods, the bottle cap screwing device provided in this application embodiment can automatically press and rotate the bottle cap, so that the bottle cap can be screwed open or closed as needed, thereby realizing the automatic opening and closing of the grinding bottle.

[0011] In some embodiments, a pressure sensor is provided on the inner wall of the clamping plate to detect whether the clamping plate abuts against the mounting rod.

[0012] In this embodiment, a pressure sensor can be set up to easily detect whether the clamping plate is in contact with the mounting rod. Only when in contact can the clamping plate drive the mounting rod to rotate.

[0013] In some embodiments, the grinding bottle includes a bottle body and a bottle cap; the bottle cap includes a cap body, a mounting rod, and a first telescopic mechanism connecting the cap body and the mounting rod; the inner wall of the bottle body is provided with a mounting groove for engaging with the end of the mounting rod and a limiting protrusion for supporting the cap body, the mounting groove being located above the limiting protrusion.

[0014] In this embodiment, the bottle body and cap of the grinding bottle are respectively engaged and connected by a mounting groove and a mounting rod, and the mounting rod in the cap can move vertically under the action of the first telescopic mechanism. Based on the structure of the grinding bottle, the cap screwing device provided in this application embodiment can press the mounting rod down to the height of the mounting groove through a lifting mechanism, and then drive the mounting rod to rotate through a rotating mechanism, so that the end of the mounting rod is screwed into or out of the mounting groove, so as to unscrew or screw the cap.

[0015] In some embodiments, the mounting rod includes a mounting portion connected to the first telescopic mechanism and sleeves disposed on both sides of the mounting portion; the clamping plate includes a clearance portion and clamping portions disposed on both sides of the clearance portion, a cavity for clearance of the mounting portion is formed between the clearance portions of the two clamping plates, and the clamping portions are used to abut against the sleeves.

[0016] In this embodiment, the structure of the clamping plate is set according to the structure of the mounting rod. It can effectively avoid the mounting part of the mounting rod through the avoidance part, and effectively clamp the sleeve through the clamping part so as to drive the sleeve to rotate.

[0017] In some embodiments, the rotating mechanism includes a rotary motor connected to the bottle cap clamping device, a first fixing structure for fixing the rotary motor, and a first connecting plate for connecting the first fixing structure and the lifting mechanism.

[0018] In this embodiment, the rotary motor can drive the bottle cap clamping device to rotate; the first fixing structure can effectively fix the rotary motor so as to control the position of the rotating shaft during rotation; the first connecting plate can effectively connect the rotating mechanism and the lifting mechanism so as to use the lifting mechanism to drive the entire rotating mechanism to lift.

[0019] In some embodiments, the output shaft of the rotary motor is connected to the side of the pressure plate away from the clamping plate; the output shaft, the central axis of the bottle cap, and the center of the cavity formed by the two clamping plates are on the same straight line.

[0020] In this embodiment, by aligning the output shaft of the rotary motor, the central axis of the bottle cap, and the center of the cavity formed by the two clamping plates on the same straight line, the output shaft can drive the two clamping plates to rotate around the straight line, thereby causing the clamping plates to rotate around the straight line.

[0021] In some embodiments, the lifting mechanism is disposed on a workbench, the workbench is provided with a grinding bottle opening and closing station for placing grinding bottles, and the bottle cap clamping device is located directly above the grinding bottle opening and closing station.

[0022] In this embodiment, by placing the grinding bottle on the grinding bottle opening and closing station on the workbench, the bottle cap clamping device can be lowered to the height of the bottle cap by using the lifting mechanism to drive the bottle cap clamping device to move up and down, so as to perform the clamping operation.

[0023] In some embodiments, the lifting mechanism includes a second fixed structure disposed on the workbench, a telescopic cylinder disposed on the second fixed structure and extending and retracting in the vertical direction, and a second connecting plate for connecting the telescopic end of the telescopic cylinder and the first connecting plate.

[0024] In this embodiment, the telescopic cylinder can drive the rotating mechanism and the bottle cap clamping device to move up and down as a whole.

[0025] In some embodiments, the lifting mechanism further includes a lifting guide rod disposed on the second fixed structure and a lifting guide slider slidably connected to the lifting guide rod; the axial direction of the lifting guide rod is consistent with the extension and retraction direction of the telescopic cylinder, and the lifting guide slider is connected to the first connecting plate.

[0026] In this embodiment, by setting a lifting guide rod, it can be ensured that the first connecting plate moves along the axial direction of the lifting guide rod, thereby improving the stability of the lifting process.

[0027] In some embodiments, the lifting mechanism further includes a lifting limit rod disposed at the lower part of the second fixed structure, the lifting limit rod being located below the second connecting plate.

[0028] In this embodiment, by setting a lifting limit rod, the descent position can be limited so as to accurately control the descent position of the bottle clamping device and enable it to effectively clamp the bottle cap.

[0029] The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this application more obvious and understandable, the following are specific embodiments of this application. Attached Figure Description

[0030] To more clearly illustrate the technical solutions of this application, the accompanying drawings used in this application will be briefly described below. Obviously, the drawings described below are merely some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without any creative effort.

[0031] Figure 1 This is a schematic diagram of the bottle cap screwing device provided in the embodiments of this application;

[0032] Figure 2 This is a schematic diagram showing the position of the bottle cap screwing device provided in this embodiment on the workbench;

[0033] Figure 3 This is a schematic diagram of the bottle cap clamping device in the bottle cap screwing device provided in the embodiments of this application;

[0034] Figure 4 This is a schematic diagram of the lifting mechanism in the bottle cap screwing device provided in the embodiments of this application;

[0035] Figure 5 A schematic diagram of the structure of the grinding bottle used in the bottle cap screwing device provided in the embodiments of this application;

[0036] Figure 6 A schematic diagram of the structure of the grinding bottle body used in the bottle cap screwing device provided in the embodiments of this application;

[0037] Figure 7 A schematic diagram of the structure of the bottle cap in the grinding bottle used in the bottle cap screwing device provided in the embodiments of this application;

[0038] Figure 8 This is a schematic diagram of the structure of the mounting rod in the grinding bottle used in the bottle cap screwing device provided in the embodiments of this application.

[0039] Explanation of reference numerals in the attached drawings: 10. Bottle body; 11. Tank body; 111. Mounting hole; 12. Limiting protrusion; 13. Grinding rod; 20. Bottle cap; 21. Mounting rod; 211. Mounting part; 212. Sleeve; 213. Mounting pin; 2131. Guide hole; 214. Second spring; 215. Guide pin; 22. Cap body; 23. Telescopic rod; 24. First spring; 30. Bottle cap clamping device; 31. Pressure plate; 32. Clamping plate; 321. Clearance part; 322. Pressure sensor; 41. Rotary motor; 42. First fixing structure; 43. First connecting plate; 50. Lifting mechanism; 51. Telescopic cylinder; 52. Second connecting plate; 53. Second fixing structure; 54. Lifting guide rod; 55. Lifting guide slider; 56. Lifting limit rod; 60. Worktable. Detailed Implementation

[0040] The embodiments of the technical solution of this application will now be described in detail with reference to the accompanying drawings. These embodiments are only used to more clearly illustrate the technical solution of this application and are therefore merely examples, and should not be used to limit the scope of protection of this application.

[0041] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0042] In the description of the embodiments of this application, technical terms such as "first" and "second" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly specifying the number, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, "multiple" means two or more, unless otherwise explicitly defined.

[0043] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0044] In the description of the embodiments of this application, the technical terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0045] In the description of the embodiments of this application, unless otherwise expressly specified and limited, technical terms such as "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0046] To address the issues of low efficiency and unstable tightening of manual bottle caps, this application proposes a bottle cap tightening device for grinding bottles. The device features a cap 20 with an mounting rod 21, which can be opened or closed by pressing and rotating the rod 21. The device uses a cap clamping device 30 to hold the mounting rod 21, and a rotating mechanism and a lifting mechanism 50 to rotate and lift the cap clamping device 30. This allows for pressing and rotating the mounting rod 21, enabling the bottle cap 20 to be opened or closed through these actions.

[0047] Specifically, such as Figure 1 As shown, this application embodiment provides a bottle cap screwing device for grinding bottles, used to press down and rotate the bottle cap 20 of the grinding bottle, including a bottle cap clamping device 30, a rotating mechanism and a lifting mechanism 50;

[0048] The bottle cap clamping device 30 includes a pressure plate 31 and two clamping plates 32 spaced apart on one side of the pressure plate 31; the two clamping plates 32 and the pressure plate 31 form a receiving space for accommodating the mounting rod 21 on the bottle cap 10, and the two clamping plates 32 are respectively used to abut against the two sides of the mounting rod 21.

[0049] The rotating mechanism is connected to the bottle cap clamping device 30 and is used to drive the bottle cap clamping device 30 to rotate around the central axis of the bottle cap 20.

[0050] The lifting mechanism 50 is connected to the rotating mechanism and is used to drive the rotating mechanism and the bottle cap clamping device 30 to lift.

[0051] In the technical solution of this application embodiment, by setting a bottle cap clamping device 30, a rotating mechanism, and a lifting mechanism 50, the lifting mechanism 50 can drive the rotating mechanism and the bottle cap clamping device 30 to move up and down as a whole, and the bottle cap clamping device 30 can clamp the mounting rod 21 in the bottle cap 20 to realize the pressing operation of the mounting rod 21; at the same time, the rotating mechanism can drive the bottle cap clamping device 30 and the mounting rod 21 in the bottle cap 20 to rotate, thereby realizing the rotation operation of the mounting rod 21. For grinding bottles with a mounting rod 21 in the bottle cap 20, and which can be opened or closed by pressing and rotating the mounting rod 21, the bottle cap screwing device provided in this application embodiment can automatically press and rotate the bottle cap 20 to open or close the bottle cap 20.

[0052] Furthermore, please refer to the following: Figure 2 In some embodiments of this application, the bottle cap screwing device is disposed on the workbench 60. The workbench 60 has several grinding bottle opening and closing stations for placing grinding bottles. Each grinding bottle opening and closing station corresponds to one bottle cap screwing device. The number of stations and bottle cap screwing devices can be set according to actual needs. Preferably, two grinding bottle opening and closing stations are provided, which can be used to perform the opening and closing operations of the bottle cap 20 respectively. Specifically, the lifting mechanism 50 is vertically disposed on the workbench 60 and located on one side of the grinding bottle opening and closing station, while the bottle cap clamping device 30 is located directly above the grinding bottle opening and closing station. The lifting mechanism 50 and the rotating mechanism are used to drive the bottle cap clamping device 30 to move up and down and rotate, respectively.

[0053] To achieve automatic opening and closing of the grinding bottle, the bottle body 10 needs to be fixed while the cap is being screwed on. This can be achieved by installing a bottle clamping device at the grinding bottle opening and closing station. The bottle clamping device may include two bottle clamping parts respectively located on both sides of the grinding bottle opening and closing station, and a drive mechanism for driving the two bottle clamping parts closer or further apart. The drive mechanism includes a drive gear and two racks meshing with the drive gear. The two racks are located above and below the drive gear, respectively, and are connected to the two bottle clamping parts. It should be noted that the above-described bottle clamping device structure is only an example and can be configured according to actual needs, as long as it can fix the bottle body 10. This application is not limited to this.

[0054] Furthermore, please refer to the following: Figure 3In some embodiments of this application, two clamping plates 32 are symmetrically arranged, and a pressure sensor 322 is provided on the inner wall of the clamping plate 32 to detect whether the clamping plate 32 abuts against the mounting rod 21. The shape of the clamping plate 32 can be determined according to the shape of the mounting rod 21 to clamp the mounting rod 21 more stably.

[0055] In some embodiments of this application, since the mounting rod 21 has a mounting part 211 in the middle and sleeves 212 on both sides of the mounting part 211, and the clamping plate 32 is mainly used to clamp the sleeves 212 in the mounting rod 21, thereby driving the mounting rod 21 to rotate, the clamping plate 32 has a clearance part 321 in the middle corresponding to the mounting part 211, so that a cavity is formed between the clearance parts 321 of the two clamping plates 32 to allow clearance for the mounting part 211. The shape of the clearance part 321 can be completely consistent with the mounting part 211, or it can be adjusted as needed to ensure that the cavity formed between the clearance parts 321 of the two clamping plates 32 can completely accommodate the mounting part 211. The pressure sensor 322 can also be set in the clearance part 321, as long as the mounting part 211 can squeeze the pressure sensor 322 in the clamping state. The clamping parts are located on both sides of the clamping plate 32 corresponding to the sleeve 212 of the mounting rod 21. In the clamping state, the clamping parts of the two clamping plates 32 are located on both sides of the sleeve 212. When the two clamping plates 32 are rotated by the rotating mechanism, the clamping parts can abut against the sleeve 212 and drive the sleeve 212 to rotate around the central axis of the bottle cap 20.

[0056] Furthermore, in this embodiment, the two clamping plates 32 only need to be located on both sides of the mounting rod 21, capable of rotating the mounting rod 21. After the cap opening operation, a robotic arm can be used to remove the cap 20 so that the sample and grinding rod 13 can be loaded into the bottle body 10. If it is necessary to use the clamping plates 32 to clamp the cap 20 and lift it after opening, an additional drive mechanism can be provided as needed to control the two clamping plates 32 to move closer or further apart. This application does not limit this.

[0057] Furthermore, in some embodiments of this application, the rotating mechanism includes a rotary motor 41 connected to the bottle cap clamping device 30, a first fixing structure 42 for fixing the rotary motor 41, and a first connecting plate 43 for connecting the first fixing structure 42 and the lifting mechanism 50. The output shaft of the rotary motor 41 is connected to the pressure plate 31 of the bottle cap clamping device 30. The output shaft, the central axis of the bottle cap 20, and the center of the cavity formed by the two clamping plates 32 are on the same straight line, enabling the bottle cap clamping device 30 to drive the mounting rod 21 to rotate around the central axis of the bottle cap 20. The output shaft of the rotary motor 41 can rotate forward and backward to open or close the bottle cap 20.

[0058] Furthermore, please refer to the following: Figure 4 In some embodiments of this application, the lifting mechanism 50 includes a second fixed structure 53 mounted on the worktable 60, a telescopic cylinder 51 mounted on the second fixed structure 53 and extending and retracting vertically, and a second connecting plate 52 for connecting the telescopic end of the telescopic cylinder 51 and the first connecting plate 43. Thus, the telescopic cylinder 51 can drive the rotating mechanism and the bottle cap clamping device 30 to move up and down. More preferably, to ensure the stability of the lifting process, a lifting guide rod 54 is also provided on the second fixed structure 53. The axial direction of the lifting guide rod 54 is consistent with the telescopic direction of the telescopic cylinder 51. A lifting guide slider 55 is slidably connected to the lifting guide rod 54, and the lifting guide slider 55 is slidably connected to the first connecting plate 43. With this configuration, when the telescopic cylinder 51 drives the first connecting plate 43 to move, it can be ensured that the plate moves along the axial direction of the lifting guide rod 54. The number of lifting guide rods 54 can be set as needed, preferably two, and the two lifting guide rods 54 are symmetrically arranged on both sides of the telescopic cylinder 51, further improving the stability of the lifting process. More preferably, a lifting limit rod 56 is also provided at the lower part of the second fixed structure 53, and the lifting limit rod 56 is located below the second connecting plate 52; when the second connecting plate 52 descends to abut against the top of the lifting limit rod 56, the second connecting plate 52 will no longer descend, at which point the bottle cap clamping device reaches the preset working height. This arrangement facilitates accurate control of the descent position of the bottle cap clamping device, so as to effectively clamp the bottle cap.

[0059] Through the above-described method, the bottle cap screwing device provided in this application can perform pressing and rotating operations on the bottle cap 20. It is suitable for grinding bottles where the bottle cap 20 has a mounting rod 21, and the cap can be opened or closed by pressing and rotating the mounting rod 21. Using the bottle cap screwing device provided in this application, the cap of such grinding bottles can be screwed on and off easily and efficiently, thereby achieving automatic opening and closing of the grinding bottle. For example, this application provides a grinding bottle that meets the above conditions, as shown in the schematic diagram below. Figure 5-8 As shown, it should be noted that Figure 5-8 The structure of the grinding bottle shown is only one embodiment of this application. The structure of the grinding bottle is not limited to this one. Any grinding bottle that meets the above conditions can be screwed on using the bottle cap screwing device provided in this application.

[0060] Specifically, please refer to the following: Figure 5-8The grinding bottle includes a bottle body 10 and a bottle cap 20. The bottle cap 20 includes a cap body 22, a mounting rod 21, and a first telescopic mechanism connecting the cap body 22 and the mounting rod 21. The first telescopic mechanism includes a first spring 24 connecting the mounting rod 21 and the cap body 22, and a telescopic rod 23 disposed in the middle of the top surface of the cap body 22. The telescopic directions of the first spring 24 and the telescopic rod 23 are both perpendicular to the top surface of the cap body 22. The mounting portion 211 in the middle of the mounting rod 21 is connected to the telescopic end of the telescopic rod 23. The first spring 24 is sleeved on the outside of the telescopic rod 23, and its two ends are connected to the bottom surface of the mounting portion 211 and the top surface of the cap body 22, respectively. The mounting rod 21 includes a mounting part 211, a sleeve 212, and a mounting pin 213. The mounting part 211 is connected to the telescopic end of the telescopic rod 23. The sleeve 212 is symmetrically arranged on both sides of the mounting part 211. The mounting pin 213 is located at the end of the sleeve 212 away from the mounting part 211. A second spring 214 is provided between the sleeve 212 and the mounting pin 213 to allow the mounting pin 213 to extend and retract along the axial direction of the sleeve 212. A guide pin 215 is radially arranged in the sleeve 212. A guide hole 2131 is provided in the mounting pin 213 along the axial direction of the sleeve 212. The guide pin 215 is located in the guide hole 2131. The side of the mounting pin 213 facing the cap 22 is beveled at the end away from the sleeve 212. When the end of the mounting rod 21 is fully extended, its length does not exceed the diameter of the outer wall of the bottle 10 to avoid affecting the rotation of the grinding bottle on the grinding machine.

[0061] The bottle body 10 has a cavity for accommodating the grinding rod 13 and the sample. The inner wall of the cavity protrudes outward to form a limiting protrusion 12 for supporting the cap 22. The cap 22 can be placed directly on the limiting protrusion 12. When the cap 22 is placed on the limiting protrusion 12, the central axis of the bottle body 10 and the central axis of the cap 20 are on the same straight line. A mounting groove for engaging with the end of the mounting rod 21 is also provided on the inner wall of the bottle body 10. The mounting groove is located above the limiting protrusion 12, and its height is determined according to the position of the mounting rod 21 above the cap 22, so that the mounting rod 21 can be vertically aligned with the mounting groove after being pressed. The mounting groove includes a groove body 11 and a mounting hole 111. The groove body 11 extends circumferentially along the bottle body 10 and gradually increases in depth. The mounting hole 111 is provided on the side of the groove body 11 with the greatest depth.

[0062] Based on the structure of the bottle cap 20 and bottle body 10, the direction in which the depth of the groove 11 gradually increases is the closing direction, and vice versa. When placing the bottle cap 20, the inclined surface of the mounting pin 213 contacts the inner wall edge of the bottle body 10 and retracts inward to compress the second spring 214, thereby shortening the overall length of the mounting pin 213 and allowing it to enter the bottle body 10, ensuring that the bottle cap 20 can be properly placed on the limiting protrusion 12. Automatic closing is then achieved by rotating and engaging the pin. During the rotation and engagement process, when the end of the mounting rod 21 enters the groove 11 and rotates in the closing direction, the second spring 214 gradually extends, causing the mounting pin 213 to gradually extend outward, causing the end of the mounting rod 21 to gradually extend and fully extend out of the mounting hole 111, thus engaging the mounting rod 21 with the mounting groove and completing the closing operation. Furthermore, when the end of the mounting rod 21 engages with the mounting groove, the first spring 24 is in a compressed state, which applies an upward force to the mounting rod 21 to push the mounting rod 21 upward as much as possible, thereby improving the sealing degree of the cover.

[0063] More specifically, the mounting hole 111 includes a connecting portion that communicates with the groove 11 along the circumference of the bottle body 10 and a top portion disposed at the top of the connecting portion. The top portion is not connected to the groove 11 in the circumference of the bottle body 10. With this configuration, by pressing down on the mounting rod 21 so that its end is located inside the groove 11, and then rotating it in the capping direction into the connecting portion of the mounting hole 111, and then stopping the pressing down on the mounting rod, the first spring 24 can be used to push the mounting rod 21 upward, so that the end of the mounting rod 21 enters the top portion of the mounting hole 111. Since the top portion is not connected to the groove 11 in the circumference of the bottle body 10, the mounting rod 21 cannot be disengaged from the mounting groove by rotation alone, thereby achieving a secure engagement between the bottle body 10 and the bottle cap 20. When it is necessary to open the cap, simply press down on the mounting rod 21 so that its end moves from the top part of the mounting hole 111 to the connecting part, and then rotate it in the opening direction so that the end of the mounting rod 21 gradually disengages from the mounting groove, thereby loosening the bottle body 10 from the cap 20 and completing the cap opening operation.

[0064] The following describes in detail the screwing process of the cap screwing device for the grinding bottle provided in this application, taking the aforementioned grinding bottle as an example:

[0065] When it is necessary to unscrew the cap 20 of the grinding bottle, the specific procedure is as follows:

[0066] S1. Place the grinding bottle on the grinding bottle opening and closing position of the workbench 60 and fix the bottle body 10.

[0067] S2. Position the mounting rod 21 and clamp it using the bottle cap clamping device 30. By controlling the extension end of the telescopic cylinder 51 to extend outward, the rotating mechanism and the bottle cap clamping device 30 are lowered as a whole until the bottle cap clamping device 30 is lowered to the preset working height (i.e., the height of the bottle cap clamping device 30 when the mounting rod 21 is flush with the mounting groove and the clamping plate 32 is located on both sides of the mounting rod 21). At this time, the first spring 24 is in a compressed state and will continuously apply an upward force to the mounting rod 21. Then, the rotary motor 41 is controlled to rotate, which drives the clamping plate 32 to rotate. When the clamping plate 32 rotates to the same angle as the mounting rod 21, the mounting rod 21 can be pushed into the receiving space between the two clamping plates 32 under the action of the first spring 24. The pressure sensor 322 in the clamping plate 32 can detect the corresponding pressure information and complete the clamping of the mounting rod 21. At this time, the mounting rod 21 and the mounting groove are aligned in the vertical direction. The mounting pin 213 at the end of the mounting rod 21 is in the connecting part of the mounting hole 111, and the overall length of the mounting rod 21 is consistent with the inner diameter of the bottle 10 corresponding to the deepest part of the groove 11.

[0068] S3. Control the rotating mechanism to drive the mounting rod 21 to rotate in the opening direction, so that the mounting pin 213 at the end of the mounting rod 21 gradually disengages from the mounting groove in the opening direction. The rotation angle of the rotating mechanism can be determined according to the circumferential curvature of the mounting groove, ensuring that the mounting pin 213 can disengage from the mounting groove after rotation. After the mounting pin 213 disengages from the mounting groove, the bottle cap 20 is merely placed on the limiting protrusion 12 of the bottle body 10, and the two are not engaged. At this time, the bottle cap 20 has been unscrewed, and the lifting mechanism 50 can drive the bottle cap clamping device 30 to rise to the initial position. The bottle cap 20 placed on the limiting protrusion 12 can be removed by a robotic arm so that the sample and grinding rod 13 can be added into the bottle body 10.

[0069] When it is necessary to tighten the cap 20 of the grinding bottle, the specific process is as follows:

[0070] S1. Place the grinding bottle body 10 on the grinding bottle opening and closing position of the workbench 60 and fix the bottle body 10.

[0071] S2. Position the mounting rod 21 and clamp it using the bottle cap clamping device 30. This step is the same as the corresponding operation when unscrewing the bottle cap 20, and will not be described again here. The bottle cap 20 can be placed on the limiting protrusion 12 of the bottle body 10 by a robotic arm.

[0072] S3. Control the rotating mechanism to drive the mounting rod 21 to rotate along the cap-closing direction, so that the mounting pin 213 at the end of the mounting rod 21 gradually enters the mounting groove along the cap-closing direction. The rotation angle of the rotating mechanism is determined by rotating until it can no longer rotate. When it can no longer rotate, it is confirmed that the mounting pin 213 is in the mounting hole 111. At this time, the first spring 24 is in a compressed state and will continuously apply an upward force to the mounting rod 21. Then, control the telescopic cylinder 51 to retract inward, driving the bottle cap clamping device 30 to rise to its original position. The mounting rod 21 can then move upward under the action of the first spring 24 until the mounting pin 213 is located at the top of the mounting hole 111, causing the bottle cap 20 to engage with the bottle body 10. At this point, the screwing operation of the bottle cap 20 is completed.

[0073] In the manner described above, the bottle cap screwing device for grinding bottles provided in this application can perform pressing and rotating operations on the bottle cap 20. It is suitable for grinding bottles that can be opened and closed by pressing and rotating. It can easily and efficiently screw the bottle cap 20 of such grinding bottles, so that the bottle cap can be screwed open or closed as needed, thereby realizing the automatic opening and closing of the grinding bottle.

[0074] It should be noted that this application is not limited to the above-described embodiments. The above embodiments are merely examples, and any embodiments with the same structure and effect as the technical concept within the scope of this application are included in the technical scope of this application. Furthermore, various modifications that can be conceived by those skilled in the art to the embodiments, and other ways of constructing by combining some of the constituent elements of the embodiments, without departing from the spirit of this application, are also included in the scope of this application.

Claims

1. A bottle cap screwing device of a grinder bottle for pressing down and rotating a bottle cap of a grinder bottle, characterized by, The bottle cap clamping device, the rotating mechanism and the lifting mechanism are included; The bottle cap clamping device includes a pressing plate and two clamping plates arranged at intervals on one side of the pressing plate; the two clamping plates and the pressing plate form a containing space for containing a mounting rod on the bottle cap, and the two clamping plates are respectively used for abutting against two sides of the mounting rod; The rotating mechanism is connected with the bottle cap clamping device and used for driving the bottle cap clamping device to rotate around a central axis of the bottle cap; The lifting mechanism is connected with the rotating mechanism and used for driving the rotating mechanism and the bottle cap clamping device to lift.

2. The bottle cap screwing device of a grinder bottle according to claim 1, characterized in that, An inner wall of the clamping plate is provided with a pressure sensor for detecting whether the clamping plate abuts against the mounting rod.

3. The bottle cap screwing device of a grinder bottle according to claim 1, characterized in that, The grinding bottle includes a bottle body and the bottle cap; the bottle cap includes a cap body, the mounting rod and a first telescopic mechanism connecting the cap body and the mounting rod; an inner wall of the bottle body is provided with a mounting groove for clamping connection with an end of the mounting rod and a limiting protrusion for bearing the cap body, and the mounting groove is located above the limiting protrusion.

4. The bottle cap screwing device of a grinder bottle according to claim 3, characterized in that, The mounting rod includes a mounting portion connected with the first telescopic mechanism and sleeves arranged on two sides of the mounting portion; the clamping plate includes an avoiding portion and clamping portions arranged on two sides of the avoiding portion, and cavities for avoiding the mounting portion are formed between the avoiding portions of the two clamping plates, and the clamping portions are used for abutting against the sleeves.

5. The bottle cap screwing device of a grinder bottle according to claim 1, wherein, The rotating mechanism includes a rotating motor connected with the bottle cap clamping device, a first fixing structure for fixing the rotating motor and a first connecting plate for connecting the first fixing structure and the lifting mechanism.

6. The bottle cap screwing device of a grinder bottle according to claim 5, wherein, An output shaft of the rotating motor is connected with a side of the pressing plate away from the clamping plates; the output shaft, the central axis of the bottle cap and the cavities formed by the two clamping plates are on the same straight line.

7. The bottle cap screwing device of a grinder bottle according to claim 5, wherein The lifting mechanism is arranged on a workbench, the workbench is provided with a grinding bottle opening and closing station for placing the grinding bottle, and the bottle cap clamping device is located directly above the grinding bottle opening and closing station.

8. The bottle cap screwing device of a grinder bottle according to claim 7, characterized in that, The lifting mechanism includes a second fixing structure arranged on the workbench, a telescopic cylinder arranged on the second fixing structure and telescoping in a vertical direction, and a second connecting plate for connecting a telescopic end of the telescopic cylinder and the first connecting plate.

9. The bottle cap screwing device of a grinder bottle according to claim 8, characterized in that, The lifting mechanism further includes a lifting guide rod arranged on the second fixing structure and a lifting guide sliding block in sliding connection with the lifting guide rod; an axial direction of the lifting guide rod is consistent with a telescopic direction of the telescopic cylinder, and the lifting guide sliding block is connected with the first connecting plate.

10. The bottle cap screwing device of a grinder bottle according to claim 9, wherein, The lifting mechanism further includes a lifting limiting rod arranged at a lower part of the second fixing structure, and the lifting limiting rod is located below the second connecting plate.

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