Lifting rod and fluting machine for making cans

Abstract

The present application discloses a lifting rod of a groove machine for manufacturing cans and a groove machine. The lifting rod comprises a lifting rod shaft, a lifting rod sleeve, a slider and a bearing. The lifting rod sleeve is sleeved on the lifting rod shaft, and is provided with a slider receiving groove and a bearing receiving groove extending along the axial direction of the lifting rod sleeve. The lifting rod shaft comprises a first end and a second end opposite to the first end, and is provided with a channel connected to the slider receiving groove, and the channel passes through the second end. The slider is provided with a slider through-hole penetrating the slider, connected to the lifting rod shaft, and located in the slider receiving groove, the slider through-hole is connected to the channel, and when the lifting rod shaft is lifted, the slider is driven by the lifting rod shaft to move linearly in the slider receiving groove. The bearing is connected to the lifting rod shaft and is located in the bearing receiving groove, and when the lifting rod shaft is lifted, the slider is driven by the lifting rod shaft to roll in the bearing receiving groove. The lifting rod has a long service life.

Description

Technical Field

[0001] The present application relates to the technical field of can manufacturing, and in particular to a lifting rod of a corrugation machine and a corrugation machine for manufacturing cans. Background Art

[0002] The grooved machine for manufacturing cans includes a grooved mandrel, a lifting rod and a cam. The grooved mandrel is a mold that produces grooves on the cans and is connected to the lifting rod. In actual use, the cam rotates to push the lifting rod to rise and fall. The lifting rod is lifted and lowered to put the cans one by one on the grooved mandrel. The grooved mandrel with the cans is then contacted with the rubber roller for extrusion and rotation, so that the can body of the can is grooved. In use, a grooved machine lifting rod with a long service life is required. If the grooved machine lifting rod has a short service life, it will eventually cause the cam to wear. Summary of the invention

[0003] In order to overcome some or all of the problems existing in the related art, the present application provides a long-life corrugated machine lifting rod for can manufacturing, the lifting rod comprising a lifting rod shaft, a lifting rod sleeve, a slider and a bearing. The lifting rod sleeve is sleeved on the lifting rod shaft, and is provided with a slider receiving groove and a bearing receiving groove extending along the axial direction of the lifting rod sleeve. The lifting rod shaft comprises a first end and a second end opposite to the first end, and is provided with a channel connected to the slider receiving groove, the channel passing through the second end. The slider is provided with a slider through-hole penetrating the slider, connected to the lifting rod shaft, and located in the slider receiving groove, the slider through-hole is connected to the channel, and when the lifting rod shaft is lifted, the slider is driven by the lifting rod shaft to move linearly in the slider receiving groove. The bearing is connected to the lifting rod shaft and is located in the bearing receiving groove, and when the lifting rod shaft is lifted, the slider is driven by the lifting rod shaft to roll in the bearing receiving groove.

[0004] On the other hand, the present application also discloses a groove machine for manufacturing cans. The groove machine includes a cam and the aforementioned lifting rod. The cam pushes the lifting rod shaft of the aforementioned lifting rod to rise and fall.

[0005] The technical solution provided by the embodiments of the present application may have the following beneficial effects:

[0006] Since the lifting rod sleeve is provided with a slider receiving groove and a bearing receiving groove, and the slider receiving groove and the slider receiving groove are symmetrical with respect to the lifting rod axis, the lifting rod shaft is connected with a slider located in the slider receiving groove and a bearing located in the bearing receiving groove. During the high-speed operation of the slider, the bearing can share the force borne by the slider. Therefore, the force on the slider is greatly reduced, and the friction between the slider and the slider receiving groove will be greatly reduced accordingly. Therefore, the service life of the slider can be extended. In addition, since there is rolling friction between the bearing and the bearing receiving groove, the friction is small, and the bearing also plays a guiding role when performing linear motion in the bearing receiving groove. Therefore, the friction between the bearing and the bearing receiving groove is not large. The use of these two means together prolongs the service life of the lifting rod.

[0007] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0009] Figure 1 It is a structural schematic diagram of a fluting machine lifting rod at an angle, used to illustrate the structure and positional relationship of the lifting rod and the air pipe elbow;

[0010] Figure 2 yes Figure 1 The structural schematic diagram of the fluting machine lifting rod and the air pipe elbow shown;

[0011] Figure 3 It is a structural schematic diagram of another type of fluting machine lifting rod at an angle;

[0012] Figure 4 yes Figure 3 The structural schematic diagram of the fluting machine lifting rod and the air pipe elbow shown is used to illustrate the structure and positional relationship of the lifting rod and the air pipe elbow;

[0013] Figure 5 yes Figure 3 The schematic diagram of the structure of the groove machine lifting rod and the air pipe elbow after assembly shown;

[0014] Figure 6 It is a schematic diagram of the structure of the connecting shaft of the fluting machine lifting rod;

[0015] Figure 7 yes Figure 6 Left view of . DETAILED DESCRIPTION

[0016] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Instead, they are merely examples of devices and methods consistent with some aspects of the present application as detailed in the appended claims.

[0017] The terms used in this application are for the purpose of describing specific embodiments only and are not intended to limit this application. The singular forms "a", "said" and "the" used in this application and the appended claims are also intended to include plural forms, unless the context clearly indicates otherwise.

[0018] It should be understood that the words "first", "second" and similar words used in the specification and claims of this application do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, words such as "one" or "an" do not indicate a quantity limitation, but indicate the presence of at least one; "plurality" indicates a quantity of two or more. Unless otherwise specified, words such as "front", "rear", "lower" and / or "upper" are only for convenience of description and are not limited to one position or one spatial orientation. Words such as "include" or "comprise" and similar words mean that the elements or objects appearing before "include" or "comprises" include the elements or objects listed after "include" or "comprises" and their equivalents, and do not exclude other elements or objects.

[0019] The exemplary embodiments of the present application are described in detail below in conjunction with the accompanying drawings. In the absence of conflict, the following embodiments and features in the embodiments may complement or be combined with each other.

[0020] See also Figure 1 to Figure 2A flute machine lifting rod comprises a lifting rod shaft 1, a lifting rod sleeve 2, a slider 3 and a trachea elbow 4 connected to the slider 3. The lifting rod sleeve 2 is sleeved on the lifting rod shaft 1, and a slider receiving groove 21 is provided along its length direction, for example, the slider receiving groove 21 is a keyway. The lifting rod shaft 1 comprises a first end 11 and a second end 12 opposite to the first end 11, and a channel 13 connected to the slider receiving groove 21 is provided. The channel 13 passes through the second end 12. The slider 3 is connected to the lifting rod shaft 1 and is located in the slider receiving groove 21, and a slider through hole 31 passing through the slider 3 is provided. For example, the slider 3 adopts a copper key. In use, a follower bearing is installed at the first end 11 of the lifting rod shaft 1, and the follower bearing is located on the undulating surface of the cam, and the cam makes the follower bearing move on the undulating surface, so that the cam pushes the lifting rod shaft 1 to rise and fall, and thus, the slider 3 moves linearly in the slider receiving groove 21 with the lifting rod shaft 1. The inventor found that the slider 3 is very easy to be damaged when running at high speed, and this damage accelerates the wear of the follower bearing, and after the damage, the slider receiving groove 21 of the lifting rod sleeve 2 is also damaged, making the cam more easily damaged. The service life of the lifting rod of this structure is only about half a year.

[0021] In order to extend the service life of the lifting rod, another lifting rod shaft is designed, please refer to Figures 3 to 7 Combined with Figure 1In addition to the lifting rod shaft 1, the lifting rod sleeve 2 and the slider 3, the lifting rod shaft also includes a bearing 5. In addition to the slider receiving groove 21, the lifting rod sleeve 2 is also provided with a bearing receiving groove 22. The bearing receiving groove 22 and the slider receiving groove 21 both extend along the axial direction of the lifting rod sleeve 2, and the bearing receiving groove 22 is located directly opposite the slider receiving groove 21. The length of the bearing receiving groove 22 is greater than or equal to the stroke of the cam that drives the lifting rod to rise and fall. In one embodiment, the length of the bearing receiving groove 22 is equal to the length of the slider receiving groove 21, and the width is 0.01 to 0.80 mm larger than the width of the bearing 5, for example, 0.01 mm, 0.02 mm, 0.05 mm, 0.06 mm, 0.07 mm, 0.1 mm, 0.12 mm, 0.15 mm, 0.20 mm, 0.24 mm, 0.30 mm, 0.35 mm, 0. .37mm, 0.4mm, 0.45mm, 0.47mm, 0.5mm, 0.52mm, 0.56mm, 0.58mm, 0.65mm, 0.68mm, 0.7mm, 0.74mm, 0.76mm, 0.78mm or 0.8mm. In a more specific solution, the length of the bearing receiving groove is 188.07 mm, the width is 25.45-25.50 mm, for example, the diameter is 25.4mm, and the tolerance is 0.1mm or 0.05mm. The bearing 5 is connected to the lifting rod shaft 1, and can be connected to the lifting rod shaft 1 in the following manner: the lifting rod shaft 1 is provided with a fixing hole 10; the lifting rod includes a connecting shaft 6, and the connecting shaft 6 includes a fixing section 61 and a bearing connecting section 62. The fixing section 61 is fixedly connected to the fixing hole 10. For example, the fixing hole is a threaded hole, the fixing end is a threaded section, and the thread outer diameter of the fixing end is at least 0.02 mm smaller than the diameter of the bearing connection section. The bearing connecting section 62 is fixedly connected to the inner ring of the bearing 5, and its diameter is 0.01mm to 0.10mm smaller than the diameter of the inner ring of the bearing 5, for example, 0.01mm, 0.15mm, 0.2mm, 0.23mm, 0.25mm, 0.28mm, 0.3mm, 0.35mm, 0.4mm, 0.42mm, 0.45mm, 0.46mm, 0.5mm, 0.53mm, 0.55mm, 0.57mm, 0.6mm, 0.62mm, 0.65mm, 0.68mm, 0.7mm, 0.75mm, 0.8mm, 0.82mm, 0.85mm, 0.88mm, 0.9mm, 0.92mm, 0.95mm, 0.96mm, 0.98mm or 0.1mm. In a specific embodiment, the fixing section 62 adopts American coarse thread, the outer diameter of the thread is 5 / 16 inch, the number of thread teeth is 18, and the sum of the lengths of the bearing connection section and the fixing section is 20.36 mm.The bearing connection section 62 of the connecting shaft 6 is hollow inside and forms an oil hole 621 for applying lubricating oil to the rolling elements located in the inner and outer rings of the bearing. The oil hole 621 includes a first oil path 6211 and a second oil path 6212 perpendicular to the first oil path; the second oil path 6212 is located in the bearing connection section. The diameter of the first oil path 6211 is 4 mm, and the diameter of the second oil path 6212 is 2 mm. The sum of the axis of the second oil path 6212 and the length of the bearing connection section 62 is 6.32 mm. The bearing connection section 62 includes a connection section body 622 and a blocking end 623 connected to the connection section body 622 and opposite to the fixed section 61, the diameter of the blocking end 623 is larger than the diameter of the connection section body 622, and the connection section body 622 is located in the inner ring of the bearing 5. The oil hole 621 to the blocking end 623 penetrates the connection section body 622. The lifting rod includes an end cover, which is located at the blocking end 623 and seals the oil hole 621. A section of the oil hole 621 located at the blocking end 623 is a threaded hole, the outer diameter of the thread is 1 / 4 inch and the number of threads is 28, and the end cover is threadedly connected to the threaded hole. Because the arc portion 6231 of the blocking end 623 blocks the bearing 5 and the fixed section 61 is threadedly connected to the fixed hole 10, the bearing 5 is tightened and will not fall off. The bearing 5 and the slider 3 are both installed behind the lifting rod shaft 1, and the connection between the connecting shaft 6 and the lifting rod shaft 1 and the connection between the slider 3 and the lifting rod shaft 1 are symmetrical relative to the lifting rod shaft 1. The bearing 5 is located in the bearing receiving groove 22. In one embodiment, the bearing 5 is clearance-fitted with the bearing receiving groove 22.

[0022] See also Figures 3 to 7 Combined with Figure 1 and Figure 2 When the lifting rod of this embodiment is applied to a groove machine, the axis of the connecting shaft 6 coincides with the axis 41 of the air pipe elbow 4 connected to the slider 3. The hollow pipe of the air pipe elbow 4 is connected to the slider through hole 31 of the slider 3 and the channel 13 of the lifting rod shaft 1.

[0023] See also Figures 3 to 7 Combined with Figure 1 and Figure 2The working process of the lifting rod of this embodiment is as follows: the rotation of the cam makes the follower bearing installed on the first end 11 move on the undulating surface of the cam, thereby pushing the lifting rod shaft 1 to rise and fall, whereby the slider 3 is driven by the lifting rod shaft 1 to move linearly in the slider receiving groove 21 when the lifting rod shaft 1 rises and falls; the bearing 5 is driven by the lifting rod shaft 1 to roll in the bearing receiving groove 22 when the lifting rod shaft 1 rises and falls. After the lifting rod shaft 1 rises, since the pipeline of the air pipe elbow 4 is connected with the slider through hole 31 and the channel 13 of the slider 3, the bottom of the can is adsorbed on the second end 12 of the lifting rod shaft 1 at the can inlet star wheel, and the can is gradually sent into the groove machine. After forming, the vacuum is released at the can unloading star wheel, and the can is taken away by the star wheel.

[0024] In summary, the lifting rod of this embodiment has at least the following advantages:

[0025] 1) Since the lifting rod sleeve is provided with a slider receiving groove 21 and a bearing receiving groove 22, and the slider receiving groove and the slider receiving groove 21 are symmetrical with respect to the lifting rod shaft 1, the lifting rod shaft 1 is connected with a slider 3 located in the slider receiving groove 21 and a bearing 5 located in the bearing receiving groove 22. During the high-speed operation of the slider 3, the bearing 5 can share the force borne by the slider 3, so the force borne by the slider 3 is greatly reduced, and the friction between the slider 3 and the slider receiving groove 21 will be greatly reduced accordingly, so the service life of the slider 3 can be extended. In addition, since there is rolling friction between the bearing 5 and the bearing receiving groove 22, the friction is small, and the bearing 5 also plays a guiding role when performing linear motion in the bearing receiving groove 22. Therefore, the service life of the lifting rod using these two technical means can reach two years, while the service life of the previous lifting rod is half a year, so the service life of the lifting rod is long. The slider 3 is not easy to be damaged during use, so that the slider receiving groove 21 of the lifting rod sleeve 2 is not easy to be damaged, and further, the service life of the cam can be extended.

[0026] 2) The bearing receiving groove 22 and the slider receiving groove 21 extend along the axis of the lifting rod sleeve 2 to ensure the straightness of the slider 3 and the bearing 5 during operation.

[0027] 3) By providing oil holes on the connecting shaft 6 for applying lubricating oil to the rolling elements located on the inner ring and the outer ring of the bearing, it is convenient to lubricate the bearing 5 and ensure the reliability of the connection between the bearing 5 and the connecting shaft 6.

[0028] 4) Since the length of the bearing receiving groove is greater than or equal to the stroke of the cam that drives the lifting rod to rise and fall, the bearing provides stable guidance when the lifting rod moves and the bearing will not collide with the two ends of the bearing receiving groove.

[0029] 6) Since the length of the bearing receiving groove is equal to the length of the slider receiving groove and the width is 0.01 to 0.80 mm larger than the width of the bearing, the system error of the clearance between the bearing receiving groove and the bearing is very small and the system error can be controlled, and no further debugging is required after the bearing and the bearing receiving groove are assembled.

[0030] 6) Since the bearing and the bearing receiving groove are clearance-matched, lubricating oil can be stored between the clearances, thus facilitating guided movement and compensating for various errors.

[0031] 7) Since the connection between the connecting shaft and the lifting rod shaft and the connection between the slider and the lifting rod shaft are symmetrical relative to the lifting rod shaft and the bearing receiving groove is located directly opposite to the slider receiving groove, the reliability of the lifting rod during movement is guaranteed and jamming during movement is avoided.

[0032] 8) Since the axis of the connecting shaft coincides with the axis of the trachea elbow connected to the slider, the force balance is met when the lifting rod moves, ensuring the smoothness of the movement.

[0033] The above is only a preferred implementation mode of the present application, and does not constitute any form of limitation to the present application. Although the present application has been disclosed as a preferred implementation mode as above, it is not used to limit the present application. Any technician familiar with this profession can make some changes or modify the technical contents disclosed above into equivalent implementation modes without departing from the scope of the technical solution of the present application. However, any simple modification, equivalent change and modification made to the above implementation modes based on the technical essence of the present application without departing from the content of the technical solution of the present application still fall within the scope of the technical solution of the present application.

Claims

1. A lifting rod of a corrugation machine for manufacturing cans, characterized in that: It includes a lifting rod shaft, a lifting rod sleeve, a slider and a bearing, wherein: The lifting rod sleeve is sleeved on the lifting rod shaft, and is provided with a slider receiving groove and a bearing receiving groove extending along the axial direction of the lifting rod sleeve; The lifting rod shaft includes a first end and a second end opposite to the first end, and is provided with a passage communicating with the slider receiving groove, the passage passing through the second end; The slider is provided with a slider through-hole penetrating the slider, the slider is connected to the lifting rod shaft and is located in the slider receiving groove, the slider through-hole is communicated with the channel, and when the lifting rod shaft is lifted or lowered, the slider is driven by the lifting rod shaft to move linearly in the slider receiving groove; The bearing is connected to the lifting rod shaft and is located in the bearing receiving groove. When the lifting rod shaft is lifted or lowered, the bearing is driven by the lifting rod shaft to roll in the bearing receiving groove. The lifting rod shaft is provided with a fixing hole; the lifting rod includes a connecting shaft, which includes a fixing section and a bearing connecting section, the fixing section is fixedly connected to the fixing hole, the bearing connecting section is fixedly connected to the inner ring of the bearing, and the bearing connecting section of the connecting shaft is hollow inside to form an oil hole for applying lubricating oil to the rolling elements located at the inner ring and outer ring of the bearing.

2. The lifting rod of the groove machine for manufacturing cans according to claim 1, characterized in that: The length of the bearing accommodating groove is greater than or equal to the stroke of the cam that drives the lifting rod to rise and fall.

3. The lifting rod of the groove machine for manufacturing cans according to claim 1 or 2, characterized in that: The length of the bearing receiving groove is equal to the length of the slider receiving groove, and the width is 0.01-0.80 mm larger than the width of the bearing.

4. The lifting rod of the groove machine for manufacturing cans according to claim 3, characterized in that: The length of the bearing accommodating groove is 188.07 mm and the width is 25.45-25.50 mm.

5. The lifting rod of the groove machine for manufacturing cans according to claim 1, characterized in that: The bearing is clearance-matched with the bearing accommodating groove.

6. The lifting rod of the corrugation machine for manufacturing cans according to claim 1, characterized in that: The connection between the connecting shaft and the lifting rod shaft and the connection between the sliding block and the lifting rod shaft are symmetrical with respect to the lifting rod shaft, and the bearing receiving groove is located directly opposite to the sliding block receiving groove.

7. The lifting rod of the corrugation machine for manufacturing cans according to claim 1, characterized in that: The diameter of the bearing connection section of the connecting shaft is 0.01mm~0.10mm smaller than the diameter of the inner ring of the bearing; the fixing hole is a threaded hole, the fixing section is a threaded section, and the threaded outer diameter of the fixing section is at least 0.02mm smaller than the diameter of the bearing connection section.

8. The lifting rod of the corrugation machine for manufacturing cans according to claim 7, characterized in that: The sum of the lengths of the bearing connection section and the fixed section is 20.36 mm, and the diameter of the bearing connection section is 7.84 mm to 7.86 mm.

9. The lifting rod of the corrugation machine for manufacturing cans according to claim 1, characterized in that: The oil hole comprises a first oil passage and a second oil passage perpendicular to the first oil passage; the second oil passage is located in the bearing connection section and applies lubricating oil to the rolling element.

10. The lifting rod of the corrugation machine for manufacturing cans according to claim 9, characterized in that: The diameter of the first oil passage is 4 mm; the diameter of the second oil passage is 2 mm.

11. The lifting rod of the corrugation machine for manufacturing cans according to claim 1, characterized in that: The bearing connecting section includes a connecting section body and a blocking end connected to the connecting section body and opposite to the fixed section. The blocking end has a diameter greater than that of the connecting section body. The connecting section body is located in the inner ring of the bearing.

12. The lifting rod of the corrugation machine for manufacturing cans according to claim 11, characterized in that: The lifting rod includes an end cover, and the oil hole is located in a section of the end cover which is a threaded hole, the outer diameter of the thread is 1 / 4 inch and the number of threads is 28; the end cover is threadedly connected to the threaded hole.

13. A fluting machine, characterized in that: It comprises a cam and a flute machine lifting rod as claimed in any one of claims 1 to 12, wherein the cam drives the flute machine lifting rod to move up and down.

14. The fluting machine according to claim 13, characterized in that: The groove machine comprises an air pipe elbow connected to the slider and communicated with the through hole of the slider, and the axis of the connecting shaft coincides with the axis of the air pipe elbow.

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