Cover feeding and listening device and cover buckling machine

Abstract

The utility model provides a cover feeding and listening device and a cover buckling machine, and relates to the technical field of cover buckling equipment, the cover feeding and listening device comprises a cover feeding drive plate, a fixed plate, a fixed stand column, a lead screw and a displacement digital display, the lead screw rotates relative to the fixed disc so as to drive the cap feeding drive plate to move back and forth along the fixed stand column, and the displacement digital display can display the moving numerical value of the cap feeding drive plate based on rotation of the lead screw. The vertical height is adjusted through the lead screw, meanwhile, the displacement digital display precisely displays the real-time adjustment height, rapid reset adjustment can be conducted when the height deviates from a standard value, and the situations that in the prior art, the height adjustment work intensity of the cap feeding drive plate is large, the adjustment efficiency is low, the adjustment height range cannot be guaranteed, and clamping stagnation is likely to happen are relieved. The next procedure is affected, the situation that the cover is pressed obliquely is prone to occurring, and the possibility of bumping of personnel is large.

Description

Technical Field

[0001] The utility model relates to the technical field of cover-closing equipment, in particular to a cover-in and -out device and a cover-closing machine. Background Art

[0002] In the production process of cans, a capping machine is needed to automatically cap the cans. Different switching components of the capping machine need to be replaced for different usage scenarios. At the same time, the capping machine has a cap feeding dial, and the cap feeding dial needs to be height-adjusted for different usage scenarios.

[0003] In the prior art, the height adjustment of the cover feed dial is generally performed visually, and the height cannot be confirmed during adjustment, and the finished tin needs to be repeatedly used to calibrate the main shaft height. Therefore, the prior art has the problems of high labor intensity and low adjustment efficiency for adjusting the height of the cover feed dial, and the height adjustment range cannot be guaranteed. Therefore, the cover feed of the tin may get stuck, and then the deviation may affect the next process, resulting in the situation of biased cover pressing; in addition, the manual adjustment switching process is also prone to cause injuries to the operator. Utility Model Content

[0004] The utility model aims to provide a cover feeding and discharging device and a cover buckling machine, so as to alleviate the technical problems existing in the prior art, such as high intensity of work for adjusting the height of the cover feeding dial, low adjustment efficiency, inability to ensure the height range of adjustment, easy jamming, affecting the next step of the process, easy to cause the cover to be pressed off-center, and a high possibility of collision by personnel.

[0005] The utility model provides a cover-in and listen-out device, comprising: a cover-in dial, a fixed plate, a fixed column, a lead screw and a displacement digital display;

[0006] The fixed plate is connected to the fixed column, the cover entry dial is slidably connected to the fixed column, the lead screw sequentially penetrates the fixed plate and the cover entry dial, and the lead screw is threadedly connected to the fixed plate, the lead screw is connected to the cover entry dial, and the displacement digital display is connected to the lead screw, the lead screw is used to rotate relative to the fixed plate to drive the cover entry dial to reciprocate along the fixed column, and the displacement digital display can display the movement value of the cover entry dial based on the rotation of the lead screw.

[0007] In a preferred embodiment of the utility model, the fixed columns are provided in plurality, and the plurality of fixed columns are arranged at intervals along the circumferential direction of the cover entry dial;

[0008] The fixing plate is mounted on the ends of the plurality of fixing columns, and the fixing plate is connected to the fixing columns via fixing screws.

[0009] In a preferred embodiment of the utility model, it also includes a screw handwheel;

[0010] The displacement digital display is arranged on the fixed plate, the lead screw passes through the displacement digital display and the fixed plate in sequence, and the lead screw is located at one end of the displacement digital display away from the fixed plate and is connected to the lead screw handwheel.

[0011] In a preferred embodiment of the utility model, a screw limiting mechanism is also included;

[0012] The screw limiting mechanism is connected to one end of the screw away from the fixed disk, and the screw limiting mechanism is connected to the fixed column. The screw limiting mechanism and the fixed column have a fixed state and a sliding state. In the fixed state, the screw limiting mechanism is used to limit the relative rotation of the screw and the fixed disk. In the sliding state, the screw can rotate relative to the fixed disk.

[0013] In a preferred embodiment of the present utility model, the limiting mechanism includes a screw support plate and an adjusting portion;

[0014] The screw support plate is connected to one end of the screw away from the fixed plate, and the screw support plate is provided with a limiting hole corresponding to the fixed column, the screw support plate is connected with the fixed column through the limiting hole, the adjustment part is connected to the screw support plate, and the adjustment part is used to adjust the screw support plate and the fixed column to be fixedly matched or slidingly matched.

[0015] In a preferred embodiment of the present utility model, the adjustment portion includes an adjustment slot and a fastener;

[0016] The adjustment groove extends along the side wall of the screw support plate into the limiting hole, and the fastener passes through the side wall of the adjustment groove. The fastener is used to adjust the gap between the side walls on both sides of the adjustment groove to adjust the inner diameter of the limiting hole so that the screw support plate and the fixed column are in an interference fit or a clearance fit through the limiting hole.

[0017] In a preferred embodiment of the present utility model, the adjustment portion comprises a threaded sleeve;

[0018] The inner wall of the threaded sleeve is provided with a first thread segment, the threaded sleeve is sleeved on the outside of the fixed column, and the fixed column is provided with a second thread segment corresponding to the first thread segment, and the threaded sleeve is threadedly connected to the fixed column;

[0019] The threaded sleeves are provided with two, and the two threaded sleeves are respectively located on two opposite sides of the screw support plate, and each of the threaded sleeves can abut against the surface of the screw support plate.

[0020] In a preferred embodiment of the utility model, it also includes a listening dial;

[0021] The output and listening dial is located on the side of the cover entry dial away from the fixed plate, and the output and listening dial is connected to the fixed column;

[0022] A plurality of listening grooves are arranged at intervals along the circumferential direction of the listening dial, and a plurality of cover inlet grooves are arranged at intervals along the circumferential direction of the cover inlet dial. The number of the listening grooves corresponds to the number of the cover inlet grooves, and the plurality of fixed columns are used to limit the corresponding arrangement of each of the cover inlet grooves and each of the listening grooves.

[0023] In a preferred embodiment of the present invention, a pressure head step is provided on the inner wall of the cover entry groove, and the cover entry groove is engaged and limited with the cover body through the pressure head step.

[0024] The utility model provides a cover-locking machine, which comprises the cover-in and can-out device.

[0025] The utility model provides a cover inlet and outlet listening device, comprising: a cover inlet dial, a fixed plate, a fixed column, a lead screw and a displacement digital display; the fixed plate is connected to the fixed column, the cover inlet dial is slidably connected to the fixed column, the lead screw sequentially penetrates the fixed plate and the cover inlet dial, and the lead screw is threadedly connected to the fixed plate, the lead screw is connected to the cover inlet dial, the displacement digital display is connected to the lead screw, the lead screw is used to rotate relative to the fixed plate to drive the cover inlet dial to move back and forth along the fixed column, and the displacement digital display can display the movement value of the cover inlet dial based on the rotation of the lead screw; the displacement digital display accurately displays the real-time adjustment height while the lead screw adjusts the upper and lower heights, and can quickly reset and adjust when the height deviates from the standard value, thereby alleviating the technical problems in the prior art that the work intensity of the cover inlet dial height adjustment is large, the adjustment efficiency is low, the adjustment height range cannot be guaranteed, the situation of easy jamming occurs, the next step of the process is affected, the situation of biased cover pressing occurs, and the possibility of personnel collision is large. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0027] Figure 1 A schematic diagram of the overall structure of the cover-in and ear-out device provided in an embodiment of the utility model;

[0028] Figure 2A schematic structural diagram of the cover-in and ear-out device provided by an embodiment of the utility model from another perspective;

[0029] Figure 3 This is a partial enlarged structural schematic diagram of the position of the lead screw limiting mechanism of the cover inlet and outlet device provided in an embodiment of the utility model.

[0030] Icons: 100-cover entry dial; 110-cover entry groove; 120-pressure head step; 200-fixed plate; 300-fixed column; 400-screw; 500-displacement digital display; 600-screw handwheel; 700-screw limiting mechanism; 710-screw support plate; 711-limiting hole; 721-adjusting slot; 800-listening dial; 810-listening groove. DETAILED DESCRIPTION

[0031] The technical solution of the utility model will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0032] like Figure 1-Figure 3 As shown, a cover entry and exit listening device provided in this embodiment includes: a cover entry dial 100, a fixed plate 200, a fixed column 300, a lead screw 400 and a displacement digital display 500; the fixed plate 200 is connected to the fixed column 300, the cover entry dial 100 is slidably connected to the fixed column 300, the lead screw 400 sequentially penetrates the fixed plate 200 and the cover entry dial 100, and the lead screw 400 is threadedly connected to the fixed plate 200, the lead screw 400 is connected to the cover entry dial 100, and the displacement digital display 500 is connected to the lead screw 400, the lead screw 400 is used to rotate relative to the fixed plate 200 to drive the cover entry dial 100 to reciprocate along the fixed column 300, and the displacement digital display 500 can display the movement value of the cover entry dial 100 based on the rotation of the lead screw 400.

[0033] It should be noted that the cover inlet and outlet device provided in this embodiment can adjust the height of the cover inlet dial 100 of the cover buckling machine by digital display, and adjust the cover inlet height of different products by reference to numerical values; specifically, the lead screw 400 is connected to the displacement digital display 500, the lead screw 400 is threadedly connected to the fixed disk 200, and the lead screw 400 is connected to the cover inlet dial 100, and the cover inlet dial 100 forms a sliding limit through the fixed column 300, and the fixed column 300 is fixedly connected to the fixed disk 200. When the lead screw rotates relative to the fixed disk 200, the lead screw 400 00 can reciprocate along its own axis, and then synchronously drive the cover feeding dial 100 to reciprocate. When the up and down height is adjusted by hand-cranked lead screw, the lead screw 400 is threadedly connected with the displacement digital display 500. When the lead screw 400 rotates, the rotation and lifting height of the lead screw 400 can be converted into a digital signal. The displacement digital display 500 can accurately display the real-time adjustment height, and can quickly reset and adjust when the height deviates from the standard value, thereby ensuring the manual adjustment height range of the cover feeding dial 100, effectively improving production efficiency, reducing the safety risk of personnel injury, and reducing personnel labor.

[0034] The cover-entry and listen-out device provided in this embodiment includes: a cover-entry dial 100, a fixed plate 200, a fixed column 300, a lead screw 400 and a displacement digital display 500; the fixed plate 200 is connected to the fixed column 300, the cover-entry dial 100 is slidably connected to the fixed column 300, the lead screw 400 sequentially penetrates the fixed plate 200 and the cover-entry dial 100, and the lead screw 400 is threadedly connected to the fixed plate 200, the lead screw 400 is connected to the cover-entry dial 100, and the displacement digital display 500 is connected to the lead screw 400, and the lead screw 400 is used to rotate relative to the fixed plate 200 to drive the cover-entry dial 1 00 reciprocates along the fixed column 300, and the displacement digital display 500 can display the movement value of the cover feed dial 100 based on the rotation of the screw 400; while the upper and lower heights are adjusted by the screw, the displacement digital display 500 accurately displays the real-time adjusted height, and can quickly reset and adjust when the height deviates from the standard value, thereby alleviating the technical problems existing in the prior art that the height adjustment of the cover feed dial 100 is high in intensity, the adjustment efficiency is low, the height adjustment range cannot be guaranteed, and it is easy to get stuck, which affects the next step of the process, and it is easy to press the cover off-center, as well as there is a high possibility of collision with personnel.

[0035] On the basis of the above embodiments, further, in a preferred embodiment of the utility model, a plurality of fixed columns 300 are provided, and the plurality of fixed columns 300 are arranged at intervals along the circumferential direction of the cover access dial 100; the fixed disk 200 is mounted on the ends of the plurality of fixed columns 300, and the fixed disk 200 is connected to the fixed columns 300 by fixing screws.

[0036] In this embodiment, at least two fixed columns 300 are provided. Preferably, three fixed columns 300 can be provided. The three fixed columns 300 are arranged in a ring shape with equal intervals in the cylindrical direction of the cover access dial 100. The ends of the fixed columns 300 can be fitted with the surface of the fixed disk 200. The fixed disk 200 can be connected to the fixed columns 300 by fixing screws so that the fixed disk 200 and the fixed columns 300 form a fixed connection. When the screw rod rotates relative to the fixed disk 200, the fixed columns 300 can serve as a limiting structure to ensure that the cover access dial 100 can be adjusted in height along the vertical direction.

[0037] In a preferred embodiment of the utility model, it also includes a screw handwheel 600; the displacement digital display 500 is arranged on the fixed disk 200, the screw 400 passes through the displacement digital display 500 and the fixed disk 200 in sequence, and the screw 400 is located at the end of the displacement digital display 500 away from the fixed disk 200 and is connected to the screw handwheel 600.

[0038] In this embodiment, the screw handwheel 600 is transmission connected to the screw 400, and the screw handwheel 600 can drive the screw 400 to rotate relative to the fixed plate. At the same time, the screw handwheel 600 is located at the end of the displacement digital display 500 away from the fixed plate 200, that is, the rotation of the screw can be better controlled through the screw handwheel 600 at the top in the vertical direction.

[0039] In a preferred embodiment of the utility model, a screw limiting mechanism 700 is also included; the screw limiting mechanism 700 is connected to one end of the screw 400 away from the fixed disk 200, and the screw limiting mechanism 700 is connected to the fixed column 300, and the screw limiting mechanism 700 and the fixed column 300 have a fixed state and a sliding state. In the fixed state, the screw limiting mechanism 700 is used to limit the relative rotation of the screw 400 and the fixed disk 200, and in the sliding state, the screw 400 can rotate relative to the fixed disk 200.

[0040] In this embodiment, the lead screw limiting mechanism 700 is connected to the fixed column 300, and the lead screw limiting mechanism 700 can be used to adjust the rotation state of the lead screw, that is, when the lead screw limiting mechanism 700 and the fixed column 300 are in a fixed state, the lead screw 400 is limited by the lead screw limiting mechanism 700, and the lead screw 400 and the fixed disk 200 are in a fixed state, and the lead screw 400 cannot form a relative rotation with respect to the fixed disk 200, and the fixed disk 200, the lead screw 400, the cover dial 100 and The fixed column 300 rotates synchronously to ensure the rotation and transportation of the cover body; when the screw limiting mechanism 700 and the fixed column 300 are in a sliding state, the screw 400 is free from the restriction of the screw limiting mechanism 700, and the screw 400 and the fixed disk 200 are in a free state. The screw 400 rotates relative to the fixed disk 200, and the screw 400 drives the cover feed dial 100 to reciprocate along the fixed column 300 so as to adjust the moving distance of the cover feed dial 100.

[0041] In a preferred embodiment of the utility model, the limiting mechanism includes a screw support plate 710 and an adjusting part; the screw support plate 710 is connected to one end of the screw 400 away from the fixed plate 200, and the screw support plate 710 is provided with a limiting hole 711 corresponding to the fixed column 300, the screw support plate 710 is connected with the fixed column 300 through the limiting hole 711, and the adjusting part is connected to the screw support plate 710, and the adjusting part is used to adjust the screw support plate 710 and the fixed column 300 to be fixedly matched or slidingly matched.

[0042] In this embodiment, the screw support plate 710 is located at the end of the screw 400. The screw support plate 710 and the screw 400 can be rotatably connected via a bearing. The screw support plate 710 can be connected to the fixed column 300 respectively using the limiting holes 711, and the screw support plate 710 can rotate synchronously with the fixed column 300. The adjustment part can control the matching mode of the screw support plate 710 and the fixed column 300. When the adjustment part controls the screw support plate 710 to be fixedly matched with the fixed column 300, the screw 400 cannot form a relative position relative to the fixed plate 200. Rotate, the fixed plate 200, the screw 400, the cover entry dial 100, the fixed column 300 and the screw support plate 710 rotate synchronously; when the adjustment part controls the screw support plate 710 to slide with the fixed column 300, the screw 400 is released from the fixed restriction, the screw 400 and the fixed plate 200 are in a free state, the screw 400 rotates relative to the fixed plate 200, and the screw 400 drives the cover entry dial 100 and the screw support plate 710 to reciprocate along the fixed column 300, so as to be able to adjust the moving distance of the cover entry dial 100.

[0043] In a preferred embodiment of the utility model, the adjustment portion includes an adjustment groove 721 and a fastener; the adjustment groove 721 extends along the side wall of the screw support plate 710 to the limiting hole 711, and the fastener passes through the side wall of the adjustment groove 721. The fastener is used to adjust the gap between the side walls of the adjustment groove 721 to adjust the inner diameter of the limiting hole 711 so that the screw support plate 710 is in an interference fit or a clearance fit with the fixed column 300 through the limiting hole 711.

[0044] In this embodiment, the adjustment groove 721 is used as a structure for adjusting the inner diameter of the limiting hole 711. The adjustment groove 721 penetrates along the side wall of the screw support plate 710 to the inside of the limiting hole 711. The side walls of the adjustment groove 721 are respectively penetrated with fastening holes. The fastener can penetrate the side wall of the adjustment groove 721. By rotating the fastener, the gap of the adjustment groove 721 can be changed, thereby changing the inner diameter of the limiting hole 711. Optionally, the fastener can be a bolt, that is, when it is necessary to adjust the height of the cover access dial 100, by loosening the fastener, a clearance fit is formed between the screw support plate 710 and the fixed column 300. At this time, the height adjustment of the cover access dial 100 is completed by rotating the screw handwheel. When the appropriate height is reached, the fastener is tightened to form an interference fit between the screw support plate 710 and the fixed column 300. At this time, the screw support plate 710 rotates the screw 400 and reciprocates along the fixed column 300 to provide a reaction force to ensure the stability of the screw 400.

[0045] In a preferred embodiment of the utility model, the adjusting part includes a threaded sleeve; a first threaded section is provided on the inner wall of the threaded sleeve, the threaded sleeve is sleeved on the outside of the fixed column 300, and a second threaded section is provided on the fixed column 300 corresponding to the first threaded section, and the threaded sleeve is threadedly connected to the fixed column 300; two threaded sleeves are provided, and the two threaded sleeves are respectively located on two opposite sides of the screw support plate 710, and each threaded sleeve can abut against the surface of the screw support plate 710.

[0046] The screw support plate 710 is moved in a direction close to the above-mentioned threaded sleeves. When the appropriate height is reached, the threaded sleeve is rotated toward the direction of the screw support plate 710 until it abuts against the surface of the screw support plate 710. At this time, the two sides of the screw support plate 710 are respectively provided with abutment restrictions by the two threaded sleeves. The stability of the screw 400 is ensured.

[0047] Optionally, in order to prevent the second thread segment on the fixed column 300 from affecting the sliding of the screw support plate 710, the second thread segment is not arranged in the moving path of the screw support plate 710 to ensure the stability of the screw support plate 710 sliding along the fixed column 300.

[0048] In a preferred embodiment of the utility model, it also includes a listening dial 800; the listening dial 800 is located on the side of the cover inlet dial 100 away from the fixed disk 200, and the listening dial 800 is connected to the fixed column 300; a plurality of listening grooves 810 are arranged at intervals along the circumferential direction of the listening dial 800, and a plurality of cover inlet grooves 110 are arranged at intervals along the circumferential direction of the cover inlet dial 100, the number of the listening grooves 810 is arranged corresponding to the number of the cover inlet grooves 110, and the plurality of fixed columns 300 are used to limit each cover inlet groove 110 to form a corresponding arrangement with each listening groove 810.

[0049] In this embodiment, the listening dial 800 is located at the bottom of the cover feeding dial 100, and the listening dial 800 can rotate and transport the can body with the cover fastened, and the listening dial 800 is connected to the fixed column 300. If the cover body in the listening groove 810 is not accurately positioned during the cover suction process or the cover feeding turntable is slightly offset, the cover will be pressed or dropped. The original movable part connection mode between the cover feeding dial 100 and the listening dial 800 is improved to a limit connection formed by at least three fixed columns 300, which ensures that the cover feeding groove 110 and the listening groove 810 are arranged in a completely corresponding manner, and eliminates the possibility of a cover feeding position inaccurate pressing cover failure caused by the asynchronous position of the cover feeding groove 110 and the listening groove 810.

[0050] In a preferred embodiment of the present invention, a pressure head step 120 is provided on the inner wall of the cover entry groove 110 , and the cover entry groove 110 is engaged and limited with the cover body through the pressure head step 120 .

[0051] In this embodiment, the cover entry groove 110 can be clamped with the cover body during the conveying process, and the pressure head step 120 is arranged in a ring along the inner wall of the cover entry groove 110. The cover entry groove 110 forms a clamping limit with the cover body through the pressure head step 120, so as to better complete the cover suction and rotation action.

[0052] The present embodiment provides a cover-closing machine, comprising the cover-in and ear-out device. Since the technical effect of the cover-closing machine provided by the present embodiment is the same as the technical effect of the cover-in and ear-out device provided by the above embodiment, it will not be described in detail here.

[0053] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A cover-in and outlet-out device, characterized in that: include: A cover entry dial (100), a fixed plate (200), a fixed column (300), a lead screw (400) and a displacement digital display (500); The fixed disk (200) is connected to the fixed column (300), the cover entry dial (100) is slidably connected to the fixed column (300), the lead screw (400) sequentially penetrates the fixed disk (200) and the cover entry dial (100), and the lead screw (400) is threadedly connected to the fixed disk (200), the lead screw (400) is connected to the cover entry dial (100), the displacement digital display (500) is connected to the lead screw (400), the lead screw (400) is used to rotate relative to the fixed disk (200) to drive the cover entry dial (100) to reciprocate along the fixed column (300), and the displacement digital display (500) can display the movement value of the cover entry dial (100) based on the rotation of the lead screw (400).

2. The cover-in and outlet-out device according to claim 1, characterized in that: A plurality of the fixed columns (300) are provided, and the plurality of the fixed columns (300) are arranged at intervals along the circumferential direction of the cover entry dial (100); The fixing plate (200) is mounted on the ends of the plurality of fixing columns (300), and the fixing plate (200) is connected to the fixing columns (300) via fixing screws.

3. The cover-in and outlet-out hearing device according to claim 2, characterized in that: Also includes a screw hand wheel (600); The displacement digital display (500) is arranged on the fixed disk (200), and the lead screw (400) passes through the displacement digital display (500) and the fixed disk (200) in sequence. The lead screw (400) is located at one end of the displacement digital display (500) away from the fixed disk (200) and is connected to the lead screw handwheel (600).

4. The cover-in and outlet-out hearing device according to claim 2, characterized in that: Also includes a screw limiting mechanism (700); The lead screw limiting mechanism (700) is connected to one end of the lead screw (400) away from the fixed disk (200), and the lead screw limiting mechanism (700) is connected to the fixed column (300). The lead screw limiting mechanism (700) and the fixed column (300) have a fixed state and a sliding state. In the fixed state, the lead screw limiting mechanism (700) is used to limit the relative rotation between the lead screw (400) and the fixed disk (200). In the sliding state, the lead screw (400) can rotate relative to the fixed disk (200).

5. The cover-in and outlet-out hearing device according to claim 4, characterized in that: The limiting mechanism comprises a screw support plate (710) and an adjusting portion; The screw support plate (710) is connected to one end of the screw (400) away from the fixed plate (200), and the screw support plate (710) is provided with a limiting hole (711) corresponding to the fixed column (300), and the screw support plate (710) is connected to the fixed column (300) through the limiting hole (711), and the adjustment part is connected to the screw support plate (710), and the adjustment part is used to adjust the screw support plate (710) and the fixed column (300) to be fixedly matched or slidably matched.

6. The cover-in and outlet-out hearing device according to claim 5, characterized in that: The adjustment portion comprises an adjustment slot (721) and a fastener; The adjusting groove (721) extends along the side wall of the screw support plate (710) into the limiting hole (711), and the fastener penetrates the side wall of the adjusting groove (721). The fastener is used to adjust the gap between the side walls of the adjusting groove (721) on both sides to adjust the inner diameter of the limiting hole (711), so that the screw support plate (710) and the fixed column (300) are in an interference fit or a clearance fit through the limiting hole (711).

7. The cover-in and outlet-out hearing device according to claim 5, characterized in that: The adjusting portion comprises a threaded sleeve; The inner wall of the threaded sleeve is provided with a first threaded section, the threaded sleeve is sleeved on the outside of the fixed column (300), and the fixed column (300) is provided with a second threaded section corresponding to the first threaded section, and the threaded sleeve is threadedly connected to the fixed column (300); Two threaded sleeves are provided, and the two threaded sleeves are respectively located on two opposite sides of the screw support plate (710), and each threaded sleeve can abut against the surface of the screw support plate (710).

8. The cover-in and outlet-out device according to any one of claims 2 to 7, characterized in that: Also included is a listening dial (800); The output and listening dial (800) is located on a side of the cover entry dial (100) away from the fixed plate (200), and the output and listening dial (800) is connected to the fixed column (300); A plurality of listening grooves (810) are arranged at intervals along the circumferential direction of the listening dial (800), and a plurality of cover inlet grooves (110) are arranged at intervals along the circumferential direction of the cover inlet dial (100). The number of the listening grooves (810) is arranged correspondingly to the number of the cover inlet grooves (110), and the plurality of fixed columns (300) are used to restrict each of the cover inlet grooves (110) to form a corresponding arrangement with each of the listening grooves (810).

9. The cover-in and outlet-out hearing device according to claim 8, characterized in that: A pressure head step (120) is provided on the inner wall of the cover entry groove (110), and the cover entry groove (110) is locked and limited with the cover body through the pressure head step (120).

10. A capping machine, characterized in that: The invention comprises the cover-in and outlet-listening device as claimed in any one of claims 1 to 9.

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