Oil gas supply mechanism for sliding block of can making machine

Abstract

An oil and gas supply mechanism for a sliding block of a can making machine comprises an upper distribution block, an upper hinge block, an upper connecting rod, a lower connecting rod, a lower hinge block and a lower distribution block which are arranged from top to bottom, and conveying channels are arranged in the upper distribution block, the upper hinge block, the lower hinge block and the lower distribution block; the upper distribution block is communicated with an external air supply mechanism and / or an external oil supply mechanism, and the upper hinge block is horizontally hinged to the upper distribution block and communicated with the upper distribution block; the upper end of the upper connecting rod is fixedly connected to the upper hinge block, and the lower end of the upper connecting rod is hinged to the upper end of the lower connecting rod; a hose is arranged between the upper hinge block and the lower hinge block, and the upper hinge block and the lower hinge block are communicated through the hose; the lower hinge block is horizontally hinged to the lower distribution block and is communicated with the lower distribution block; the lower distribution block is used for being communicated with a can making machine sliding block. The oil and gas supply mechanism can reduce shaking of the hose during working, so that the hose is not prone to damage, equipment stability is improved, and lasting operation of equipment is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of can making machine equipment, in particular to an oil and gas supply mechanism for a slide block of a can making machine. Background Art

[0002] With the development of society and the improvement of people's living standards, there are more and more types of canned food, and the demand for cans is also increasing. The main structure of the canning machine is a crank slider structure. A guide rail is fixed on the machine tool. The slider of the canning machine moves back and forth along the guide rail under the drive of the crank mechanism to drive the punch rod to punch back and forth. The can body of the can is formed by the punch rod driving the metal cup through multiple molds.

[0003] Among them, compressed gas needs to be introduced into the punch rod during operation to help separate the can from the punch. At the same time, the guide rail and the can making machine slider need to be separated from each other by high-pressure oil to reduce the wear of the can making machine slider and provide stable rigidity. Therefore, high-pressure oil and compressed gas need to be introduced when the can making machine equipment is running.

[0004] In the prior art, an external oil station (hydraulic oil supply device) and a gas station (compressed gas supply device) transport high-pressure oil and compressed gas to an upper distribution block fixed relative to a machine tool, a lower distribution block connected to the slide of a can making machine is fixedly connected to the slide, and the upper distribution block and the lower distribution block are connected by a hose, and the high-pressure oil and compressed gas reach the slide of the can making machine through the upper distribution block, the hose, and the lower distribution block in turn, and the compressed gas then passes through the vent hole on the slide of the can making machine to the punch, thereby realizing the supply of oil and gas.

[0005] However, since the slide of the can making machine has a long stroke when the can making machine equipment is running, usually up to 600mm, and the number of operations per minute can be as high as 350 times, the design of directly connecting the upper distribution block and the lower distribution block through a hose for oil and ventilation will cause the hose to vibrate severely during operation and be easily damaged, resulting in low equipment stability.

[0006] In view of the above problems, it is necessary to provide an oil and gas supply mechanism for the slider of the can making machine, which is not easily damaged during operation and has high stability. Summary of the invention

[0007] The utility model aims to provide an oil and gas supply mechanism for a slide block of a can making machine.

[0008] The technical solution adopted by the utility model is: an oil and gas supply mechanism for a slider of a can making machine, comprising an upper distribution block, an upper hinge block, an upper connecting rod, a lower connecting rod, a lower hinge block and a lower distribution block arranged from top to bottom, wherein the upper distribution block, the upper hinge block, the lower hinge block and the lower distribution block are all provided with a conveying channel;

[0009] The upper distribution block is connected to an external air supply mechanism and / or an oil supply mechanism, and the upper hinge block is horizontally hinged to the upper distribution block and is connected to the upper distribution block;

[0010] The upper end of the upper connecting rod is fixedly connected to the upper hinge block, the lower end of the upper connecting rod is hinged to the upper end of the lower connecting rod, and the lower end of the lower connecting rod is fixedly connected to the lower hinge block;

[0011] A hose is provided between the upper hinge block and the lower hinge block, and the upper hinge block and the lower hinge block are connected through the hose;

[0012] The lower hinge block is horizontally hinged to the lower distribution block and is connected with the lower distribution block; the lower distribution block is used to communicate with a can making machine slider.

[0013] A further technical solution is that a first air inlet channel and a first oil inlet channel are provided in the upper distribution block, the first air inlet channel has an air inlet port connected to an external air supply mechanism, and the first oil inlet channel has an oil inlet port connected to an external oil supply mechanism; a second air inlet channel and a second oil inlet channel are provided in the upper hinge block, the upper port of the second air inlet channel is connected to the first air inlet channel, and the upper port of the second oil inlet channel is connected to the first oil inlet channel; a third air inlet channel and a third oil inlet channel are provided in the lower hinge block, the upper port of the third air inlet channel corresponds one-to-one with the lower port of the second air inlet channel, and are connected through the hose, the upper port of the third oil inlet channel corresponds one-to-one with the lower port of the second oil inlet channel, and are connected through the hose; a fourth air inlet channel and a fourth oil inlet channel are provided in the lower distribution block, one end of the fourth air inlet channel is connected to the lower port of the third air inlet channel, and the other end is used to connect to the canning machine slider, one end of the fourth oil inlet channel is connected to the lower port of the third oil inlet channel, and the other end is used to connect to the canning machine slider.

[0014] According to a further technical solution, the upper port of the third air inlet channel, the lower port of the second air inlet channel and the corresponding hose are provided in two groups; the upper port of the third oil inlet channel, the lower port of the second oil inlet channel and the corresponding hose are provided in two groups.

[0015] According to a further technical solution, the hose is provided with a hose clamp at its end for fixing.

[0016] A further technical solution is that the upper distribution block is provided with an upper air vent shaft and an upper oil vent shaft extending along the same horizontal axis, the upper air vent shaft and the upper oil vent shaft are passed through the upper hinge block to form a horizontal hinge between the upper hinge block and the upper distribution block; the first air intake channel is provided in the upper air vent shaft, and the upper air vent shaft is provided with an opening connecting the first air intake channel with the second air intake channel inside the upper hinge block; the first oil intake channel is provided in the upper oil vent shaft, and the upper oil vent shaft is provided with an opening connecting the first oil intake channel with the second oil intake channel inside the upper hinge block.

[0017] According to a further technical solution, a rotary seal is provided between the upper air shaft and the upper hinge block, and a rotary seal is provided between the upper oil shaft and the upper hinge block.

[0018] A further technical solution is that the lower distribution block is provided with a lower air vent shaft and a lower oil vent shaft extending along the same horizontal axis, the lower air vent shaft and the lower oil vent shaft are passed through the lower hinge block, forming a horizontal hinge between the lower hinge block and the lower distribution block; the fourth air intake channel is arranged in the lower air vent shaft, and the lower air vent shaft is provided with an opening connecting the fourth air intake channel with the third air intake channel inside the lower hinge block; the fourth oil intake channel is arranged in the lower oil vent shaft, and the lower oil vent shaft is provided with an opening connecting the fourth oil intake channel with the third oil intake channel inside the lower hinge block.

[0019] According to a further technical solution, a rotary seal is provided between the lower air shaft and the lower hinge block, and a rotary seal is provided between the lower oil shaft and the lower hinge block.

[0020] According to a further technical solution, the lower end of the upper connecting rod and the upper end of the lower connecting rod are hingedly connected via a joint bearing.

[0021] The beneficial effects of the utility model are as follows: the oil and gas supply mechanism for the slider of the canning machine is designed to be connected from top to bottom through an upper distribution block, an upper hinge block, an upper connecting rod, a lower connecting rod, a lower hinge block and a lower distribution block, and an articulated structure is respectively arranged between the upper distribution block and the upper hinge block, between the upper connecting rod and the lower connecting rod, and between the lower hinge block and the lower distribution block. As a result, when the lower distribution block moves back and forth with a large amplitude and high frequency as the slider of the canning machine moves, the three articulated structures rotate accordingly and bear the acting force, thereby greatly reducing the impact force borne by the hose and reducing the shaking of the hose; in addition, compared with the existing design in which the upper distribution block and the lower distribution block are directly connected by a hose, the present scheme reduces the length of the hose by adding an upper hinge block and a lower hinge block between the upper distribution block and the lower distribution block, and connecting the upper distribution block and the lower distribution block with a hose, thereby reducing the shaking of the hose; by reducing the shaking of the hose, the hose can be made less likely to be damaged, thereby improving the stability of the equipment and ensuring the long-term operation of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Attached Figure 1 It is a schematic diagram of an embodiment of the utility model being assembled on a can making machine body;

[0023] Attached Figure 2 For attachment Figure 1 A magnified view of area A;

[0024] Attached Figure 3 A side view of an embodiment of the utility model;

[0025] Attached Figure 4 It is a cross-sectional view of an embodiment of the utility model.

[0026] In the above drawings: 1. upper distribution block; 11. first air inlet channel; 111. air inlet port; 12. first oil inlet channel; 121. oil inlet port; 13. upper ventilation shaft; 14. upper oil-through shaft; 15. rotary seal; 2. upper hinge block; 21. second air inlet channel; 22. second oil-through shaft; 3. upper connecting rod; 31. joint bearing; 4. lower connecting rod; 5. lower hinge block; 51. third air inlet channel; 52. third oil-through channel; 6. lower distribution block; 61. fourth air inlet channel; 62. fourth oil-through channel; 63. lower ventilation shaft; 64. lower oil-through shaft; 7. hose; 71. pipe clamp; 8. canning machine body; 81. canning machine slide block. DETAILED DESCRIPTION

[0027] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0028] The present invention will be clearly described below with drawings and detailed descriptions. After understanding the embodiments of the present invention, any person skilled in the art can make changes and modifications based on the techniques taught by the present invention without departing from the spirit and scope of the present invention.

[0029] The terms used herein are only for describing specific embodiments and are not intended to be limiting of the present invention. Singular forms such as "a", "this", "here", "this" and "the" as used herein also include plural forms.

[0030] The terms “first”, “second”, etc. used in this document do not specifically refer to an order or sequence, nor are they used to limit the present case. They are only used to distinguish components or operations described with the same technical terms.

[0031] As used herein, “connected” or “positioned” may refer to two or more components or devices being in direct physical contact with each other, or being in indirect physical contact with each other, or may refer to two or more components or devices operating or moving with each other.

[0032] The terms “include,” “including,” “have,” etc. used in this document are open-ended terms, meaning including but not limited to.

[0033] The terms used in this document generally have the ordinary meaning of each term used in this field, in the context of the case and in the specific context, unless otherwise noted. Certain terms used to describe the present invention will be discussed below or elsewhere in this specification to provide additional guidance to those skilled in the art in the description of the present invention.

[0034] The words "front", "back", "up", "down", "left", "right", etc. used in this article are all directional terms. In this case, they are only used to illustrate the positional relationship between the various structures, and are not used to limit the scope of protection of this case and the specific direction during actual implementation.

[0035] like Figures 1 to 4 The embodiment shown provides an oil and gas supply mechanism for a canning machine slider, comprising an upper distribution block 1, an upper hinge block 2, an upper connecting rod 3, a lower connecting rod 4, a lower hinge block 5 and a lower distribution block 6 arranged from top to bottom, wherein the upper distribution block 1, the upper hinge block 2, the lower hinge block 5 and the lower distribution block 6 are all provided with conveying channels for conveying compressed gas and high-pressure oil.

[0036] The upper distribution block 1 is connected to an external air supply mechanism and an oil supply mechanism, and the upper hinge block 2 is horizontally hinged to the upper distribution block 1 and is connected to the conveying channel of the upper distribution block 1; in actual implementation, the upper distribution block 1 may also be only connected to an external air supply mechanism, or only connected to an external oil supply mechanism, to achieve the technical effect of separate air supply or separate oil supply.

[0037] The horizontal hinge mentioned in this case refers to the two mutually hinged parts being hinged through a horizontal hinge axis, and being able to rotate relative to each other with the horizontal hinge axis as the rotation axis under the action of external force.

[0038] The upper end of the upper connecting rod 3 is fixedly connected to the upper hinge block 2 , the lower end of the upper connecting rod 3 is hinged to the upper end of the lower connecting rod 4 , and the lower end of the lower connecting rod 4 is fixedly connected to the lower hinge block 5 .

[0039] A hose 7 is provided between the upper articulated block 2 and the lower articulated block 5 , and the respective conveying passages are communicated through the hose 7 , that is, the oil and gas are conveyed from the upper articulated block 2 to the lower articulated block 5 through the hose 7 .

[0040] The lower hinge block 5 is horizontally hinged to the lower distribution block 6 and is connected to the conveying channel of the lower distribution block 6; the lower distribution block 6 is used to communicate with a can making machine slider 81.

[0041] In the assembled state, the upper distribution block 1 is fixed to the can making machine body 8 by a fixed plate (not shown in the figure), and the lower distribution block 6 is fixedly connected to the can making machine slider 81; when working, the compressed gas is input into the upper distribution block 1 from the air supply mechanism, and reaches the can making machine slider 81 after passing through the upper hinge block 2, the hose 7, the lower hinge block 5 and the conveying channel of the lower distribution block 6 in sequence, and finally is transported from the can making machine slider 81 to the punch rod connected to the can making machine slider 81, while the high-pressure oil is input into the upper distribution block 1 from the oil supply mechanism, and finally reaches the can making machine slider 81 after passing through the upper hinge block 2, the hose 7, the lower hinge block 5 and the lower distribution block 6 in sequence; among them, the oil and gas transmission route structure from the lower distribution block 6 to the can making machine slider 81 to the punch rod is all prior art, well known to those skilled in the art, and is not the invention point of this case, so it will not be repeated here.

[0042] In actual implementation, the oil pressure of the high-pressure oil is between 7Mpa and 10Mpa, the flow rate is about 32L / min, and the compressed gas pressure is between 0.25Mpa and 0.5Mpa.

[0043] Therefore, the oil and gas supply mechanism for the can making machine slider is designed to be connected from top to bottom through the upper distribution block 1, the upper hinge block 2, the upper connecting rod 3, the lower connecting rod 4, the lower hinge block 5 and the lower distribution block 6, and an articulated structure is respectively provided between the upper distribution block 1 and the upper hinge block 2, between the upper connecting rod 3 and the lower connecting rod 4, and between the lower articulated block 5 and the lower distribution block 6. As a result, when the lower distribution block 6 moves back and forth with a large amplitude and high frequency along with the can making machine slider 81, the three articulated structures rotate accordingly and bear the acting force, thereby greatly reducing the impact force borne by the hose 7 and reducing the shaking of the hose 7.

[0044] In addition, compared with the existing design in which the upper distribution block 1 and the lower distribution block 6 are directly connected by the hose 7, the present solution increases the upper hinge block 2 and the lower hinge block 5 between the upper distribution block 1 and the lower distribution block 6, and connects the upper distribution block 1 and the lower distribution block 6 by the hose 7, thereby reducing the length of the hose 7 and further reducing the shaking of the hose 7. By reducing the shaking of the hose 7, the hose 7 can be made less likely to be damaged, thereby improving the stability of the equipment and ensuring the long-term operation of the equipment.

[0045] Specifically in this embodiment, the upper distribution block 1 is provided with a first air inlet channel 11 and a first oil inlet channel 12. The first air inlet channel 11 has an air inlet port 111 connected to an external air supply mechanism, and the first oil inlet channel 12 has an oil inlet port 121 connected to an external oil supply mechanism.

[0046] The upper hinge block 2 is provided with a second air inlet channel 21 and a second oil inlet channel 22 . The upper end of the second air inlet channel 21 is connected to the first air inlet channel 11 , and the upper end of the second oil inlet channel 22 is connected to the first oil inlet channel 12 .

[0047] A third air inlet channel 51 and a third oil inlet channel 52 are provided in the lower hinge block 5. The upper port of the third air inlet channel 51 corresponds one-to-one to the lower port of the second air inlet channel 21 and is connected through the hose 7. The upper port of the third oil inlet channel 52 corresponds one-to-one to the lower port of the second oil inlet channel 22 and is connected through the hose 7.

[0048] A fourth air inlet channel 61 and a fourth oil inlet channel 62 are provided in the lower distribution block 6. One end of the fourth air inlet channel 61 is connected to the lower port of the third air inlet channel 51, and the other end is used to connect to the body making machine slider 81. One end of the fourth oil inlet channel 62 is connected to the lower port of the third oil inlet channel 52, and the other end is used to connect to the body making machine slider 81.

[0049] Among them, the first air intake channel 11 and the first oil intake channel 12, the second air intake channel 21 and the second oil intake channel 22, the third air intake channel 51 and the third oil intake channel 52, and the fourth air intake channel 61 and the fourth oil intake channel 62 are the above-mentioned delivery channels.

[0050] In this embodiment, the upper port of the third air inlet channel 51, the lower port of the second air inlet channel 21 and the corresponding hose 7 are provided in two groups; the upper port of the third oil inlet channel 52 and the lower port of the second oil inlet channel 22 and the corresponding hose 7 are provided in two groups; that is, there are a total of two hoses 7 for ventilation and two hoses 7 for oil ventilation. The multi-channel design can improve the operating stability of the equipment.

[0051] The hose 7 is provided with a pipe clamp 71 at its end for fixing to prevent the joint from loosening.

[0052] In this embodiment, the upper distribution block 1 is provided with an upper air vent shaft 13 and an upper oil vent shaft 14 extending along the same horizontal axis, and the upper air vent shaft 13 and the upper oil vent shaft 14 are passed through the upper hinge block 2 to form a horizontal hinge between the upper hinge block 2 and the upper distribution block 1; the first air intake channel 11 is provided in the upper air vent shaft 13, and the upper air vent shaft 13 is provided with an opening connecting the first air intake channel 11 and the second air intake channel 21 inside the upper hinge block 2; the first oil intake channel 12 is provided in the upper oil vent shaft 14, and the upper oil vent shaft 14 is provided with an opening connecting the first oil intake channel 12 and the second oil intake channel 22 inside the upper hinge block 2.

[0053] Therefore, when the hinged structures of the upper distribution block 1 and the upper hinge block 2 rotate relatively, the oil and air flow between the two can always be kept smooth.

[0054] Wherein, a rotary seal 15 is provided between the upper air-through shaft 13 and the upper hinge block 2 , and a rotary seal 15 is provided between the upper oil-through shaft 14 and the upper hinge block 2 , so as to achieve a sealing effect.

[0055] Similarly, the lower distribution block 6 is provided with a lower air vent shaft 63 and a lower oil vent shaft 64 extending along the same horizontal axis, and the lower air vent shaft 63 and the lower oil vent shaft 64 are passed through the lower hinge block 5 to form a horizontal hinge between the lower hinge block 5 and the lower distribution block 6; the fourth air intake channel 61 is provided in the lower air vent shaft 63, and the lower air vent shaft 63 is provided with an opening connecting the fourth air intake channel 61 with the third air intake channel 51 inside the lower hinge block 5; the fourth oil intake channel 62 is provided in the lower oil vent shaft 64, and the lower oil vent shaft 64 is provided with an opening connecting the fourth oil intake channel 62 with the third oil intake channel 52 inside the lower hinge block 5.

[0056] Therefore, when the hinged structures of the lower distribution block 6 and the lower hinge block 5 rotate relatively, the oil and air flow between the two can always be kept smooth.

[0057] Wherein, a rotary seal 15 is provided between the lower air shaft 63 and the lower hinge block 5 , and a rotary seal 15 is provided between the lower oil shaft 64 and the lower hinge block 5 , so as to achieve a sealing effect.

[0058] In this embodiment, the lower end of the upper connecting rod 3 and the upper end of the lower connecting rod 4 are hinged by a joint bearing 31 to eliminate the non-parallel error that may be caused by the installation deviation of the upper distribution block 1 and the lower distribution block 6; wherein, the specific structure and working principle of the joint bearing 31 are existing technologies and will not be elaborated here.

[0059] In summary, the oil and gas supply mechanism can reduce the vibration of the hose 7 during operation, making the hose 7 less likely to be damaged, thereby improving the stability of the equipment and ensuring the long-term operation of the equipment.

[0060] The above embodiments are only for illustrating the technical concept and features of the utility model, and their purpose is to enable people familiar with the technology to understand the content of the utility model and implement it accordingly, and they cannot be used to limit the protection scope of the utility model. Any equivalent changes or modifications made according to the spirit of the utility model should be included in the protection scope of the utility model.

Claims

1. An oil and gas supply mechanism for a slide block of a can making machine, characterized in that: It includes an upper distribution block, an upper hinge block, an upper connecting rod, a lower connecting rod, a lower hinge block and a lower distribution block arranged from top to bottom, wherein the upper distribution block, the upper hinge block, the lower hinge block and the lower distribution block are all provided with a conveying channel; The upper distribution block is connected to an external air supply mechanism and / or an oil supply mechanism, and the upper hinge block is horizontally hinged to the upper distribution block and is connected to the upper distribution block; The upper end of the upper connecting rod is fixedly connected to the upper hinge block, the lower end of the upper connecting rod is hinged to the upper end of the lower connecting rod, and the lower end of the lower connecting rod is fixedly connected to the lower hinge block; A hose is provided between the upper hinge block and the lower hinge block, and the upper hinge block and the lower hinge block are connected through the hose; The lower hinge block is horizontally hinged to the lower distribution block and is connected with the lower distribution block; the lower distribution block is used to communicate with a can making machine slider.

2. The oil and gas supply mechanism for a slide block of a can making machine according to claim 1, characterized in that: The upper distribution block is provided with a first air inlet channel and a first oil inlet channel, the first air inlet channel has an air inlet port connected to an external air supply mechanism, and the first oil inlet channel has an oil inlet port connected to an external oil supply mechanism; The upper hinge block is provided with a second air inlet channel and a second oil inlet channel, the upper port of the second air inlet channel is connected to the first air inlet channel, and the upper port of the second oil inlet channel is connected to the first oil inlet channel; The lower hinge block is provided with a third air inlet channel and a third oil inlet channel, the upper port of the third air inlet channel corresponds to the lower port of the second air inlet channel one by one and is communicated through the hose, the upper port of the third oil inlet channel corresponds to the lower port of the second oil inlet channel one by one and is communicated through the hose; A fourth air inlet channel and a fourth oil inlet channel are provided in the lower distribution block. One end of the fourth air inlet channel is connected to the lower port of the third air inlet channel, and the other end is used to connect to the body making machine slider. One end of the fourth oil inlet channel is connected to the lower port of the third oil inlet channel, and the other end is used to connect to the body making machine slider.

3. The oil and gas supply mechanism for a slide block of a can making machine according to claim 2, characterized in that: The upper port of the third air inlet channel, the lower port of the second air inlet channel and the corresponding hose are provided in two groups; the upper port of the third oil inlet channel, the lower port of the second oil inlet channel and the corresponding hose are provided in two groups.

4. The oil and gas supply mechanism for a slide block of a can making machine according to claim 3, characterized in that: The hose is provided with a hose clamp for fixing at its end.

5. The oil and gas supply mechanism for a slide block of a can making machine according to claim 2, characterized in that: The upper distribution block is provided with an upper ventilation shaft and an upper oil passage shaft extending along the same horizontal axis, and the upper ventilation shaft and the upper oil passage shaft are passed through the upper hinge block to form a horizontal hinge connection between the upper hinge block and the upper distribution block; The first air intake passage is arranged in the upper air shaft, and the upper air shaft is provided with an opening connecting the first air intake passage and the second air intake passage inside the upper hinge block; the first oil intake passage is arranged in the upper oil shaft, and the upper oil shaft is provided with an opening connecting the first oil intake passage and the second oil intake passage inside the upper hinge block.

6. The oil and gas supply mechanism for a slide block of a can making machine according to claim 5, characterized in that: A rotating seal is provided between the upper air-through shaft and the upper hinge block, and a rotating seal is provided between the upper oil-through shaft and the upper hinge block.

7. The oil and gas supply mechanism for a slide block of a can making machine according to claim 2, characterized in that: The lower distribution block is provided with a lower ventilation shaft and a lower oil passage shaft extending along the same horizontal axis, and the lower ventilation shaft and the lower oil passage shaft are passed through the lower hinge block to form a horizontal hinge connection between the lower hinge block and the lower distribution block; The fourth air inlet channel is arranged in the lower air vent shaft, and the lower air vent shaft is provided with an opening connecting the fourth air inlet channel with the third air inlet channel inside the lower hinge block; the fourth oil inlet channel is arranged in the lower oil vent shaft, and the lower oil vent shaft is provided with an opening connecting the fourth oil inlet channel with the third oil inlet channel inside the lower hinge block.

8. The oil and gas supply mechanism for a slide block of a can making machine according to claim 7, characterized in that: A rotating seal is provided between the lower air-through shaft and the lower hinge block, and a rotating seal is provided between the lower oil-through shaft and the lower hinge block.

9. The oil and gas supply mechanism for a slide block of a can making machine according to claim 1, characterized in that: The lower end of the upper connecting rod and the upper end of the lower connecting rod are hinged via a joint bearing.

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