A static sealing oil distribution mechanism

Abstract

20. The oil distribution mechanism of claim 19, wherein the cam is an oil distribution member formed in the form of a plurality of oil separation members, each of which is connected to a plurality of oil separation members, each of which is connected to a plurality of oil separation members. The cam is connected to a plurality of oil separation members, each of which is connected to a plurality of oil separation members. The cam is connected to a plurality of oil separation members, each of which is connected to a plurality of oil separation members. The cam is connected to a plurality of oil separation members, each of which is connected to a plurality of oil separation members.

Description

Technical Field

[0001] The invention relates to the technical field of compression molding equipment, and in particular to a static sealing oil separation mechanism used in a compression molding cap making machine. Background Art

[0002] The rotary full-automatic compression molding cap making machine is a machine that uses hydraulic rotary compression molding technology to produce plastic caps. The core component of the cap making machine is the rotating component that completes the feeding, compression molding and unloading processes during the rotational motion. The rotating component includes a turntable seat, a turntable, an upper mold and a lower mold for compression molding. A number of upper molds and lower molds are arranged on the turntable. By driving the lower mold and the upper mold to rotate synchronously, the control oil valve on the turntable diverts the hydraulic oil through the oil channel in the turntable into the lower mold drive cylinder to drive the lower mold to move upward to complete the mold closing and downward demolding.

[0003] However, the traditional turntable has a complex structure design, large mass, high processing precision requirements, and great processing difficulty. The maintenance difficulty is also increased, which further increases the maintenance cost. Figure 1 As shown, a conventional rotary sealed oil distribution mechanism is provided, comprising an oil distribution plate body 4' and a connected oil distribution core shaft 2', wherein the oil distribution plate body 4' rotates relative to the oil distribution core shaft 2', and a plurality of driving oil cylinders 60 are arranged in the circumferential direction of the oil distribution plate body 4', and a lower mold 50 is installed at the upper end of each driving oil cylinder 60, and each driving oil cylinder 60 corresponds to at least one oil transport passage 40' for conveying hydraulic oil in the oil distribution plate body 4', so that the oil distribution plate body 4' is provided with a plurality of oil channels 40' having ... The oil transport channel 40' of a fixed depth is difficult to process in a deep hole, so the size of the oil distribution plate 4' will be greatly limited. This design cannot improve the production efficiency of the bottle cap by expanding the number of driving cylinders 60. Furthermore, one end of the deep hole needs to be blocked after processing. After aging, the equipment is prone to leakage at the blockage or the plugging head may be washed away due to excessive oil pressure. Therefore, the existing design has a large number of plugs, which increases the risk. Therefore, it is urgent to design an oil distribution mechanism that can solve the above problems. Summary of the invention

[0004] In view of the above situation, the present invention provides a static sealing oil distribution mechanism, which eliminates the size limitation of the traditional design, has a reasonable structural design, greatly reduces the processing difficulty, and reduces the maintenance cost.

[0005] To achieve this purpose, the present invention provides a static sealed oil distribution mechanism comprising: a rotary oil distribution joint assembly and an oil distribution plate assembly, the rotary oil distribution joint assembly comprising: an oil distribution seat and an oil distribution core shaft rotatably arranged in the oil distribution seat, at least one oil distribution oil passage is opened inside the oil distribution core shaft, an oil inlet connected to the oil distribution oil passage is provided on the side wall of the oil distribution core shaft, an oil transport groove is provided on the inner wall of the oil distribution seat corresponding to the oil inlet and surrounding the axis of the oil distribution seat, and an oil distribution oil passage is opened on the side wall of the oil distribution seat There is an oil inlet connected to the oil transport groove; the oil separator plate assembly includes: a circular oil separator plate body, the oil separator plate body includes an upper end face and an opposite lower end face, and the oil separator plate body is provided with at least one oil separator chamber around its axis, the lower end face is connected to the oil separator core shaft, and the oil separator plate body is also provided with an oil transport channel connecting the oil separator oil channel and the corresponding oil separator chamber, and the upper end face is provided with a predetermined number of oil outlets connected to the oil separator chamber at a position corresponding to the oil separator chamber.

[0006] Preferably, four oil separation passages are opened inside the oil separation core shaft; four oil transport grooves are provided on the inner wall of the oil separation seat respectively corresponding to the four oil separation passages; four oil separation chambers corresponding to the four oil separation passages are concentrically arranged inside the oil separation plate along its axis, and each of the oil separation chambers is connected with a corresponding oil separation passage by an independent oil transport passage, so as to realize the separation of high-pressure oil, medium-pressure oil, low-pressure oil and return oil.

[0007] Preferably, a supporting connecting shaft is further provided between the lower end surface of the oil separating disc body and the oil separating core shaft, one end of the supporting connecting shaft is connected to the lower end surface, and the end away from the lower end surface is flange-connected to the oil separating core shaft, and an oil separating auxiliary oil passage connecting the oil transport oil passage and the oil separating oil passage is provided in the supporting connecting shaft, and the flange connection arrangement facilitates later inspection and maintenance.

[0008] Furthermore, the supporting connecting shaft and the oil separation plate body are designed to form an integrated structure.

[0009] Furthermore, a first seal is provided at the assembly point of the oil separation core shaft and the oil separation seat, and a second seal is provided at the connection point between the supporting connecting shaft and the lower end surface and the oil separation core shaft.

[0010] Furthermore, at least one oil unloading port is provided on the lower end surface of the oil separation disc body corresponding to the oil separation chamber, so as to realize the unloading function when the oil pressure in the oil separation chamber is too high, thereby maintaining the balance and stability of the oil pressure in each oil separation chamber.

[0011] Beneficial effects of the present invention:

[0012] 8. The operative position of the camshaft in the oil separator is higher than that of the camshaft in the oil separator, and the camshaft in the oil separator is higher than that of the camshaft in the oil separator. Oil port; a control oil valve for controlling the action of the oil cylinder is installed at the oil outlet. Compared with the prior art, the present design is simpler in structure, wherein the number of processing of the oil transport channel in the oil separator plate body is greatly reduced, that is, the number of deep holes is reduced, the processing difficulty is reduced, and the size limitation is removed, that is, a larger size can be designed to arrange more oil valves to control more oil cylinders, thereby improving the efficiency of the cap making machine in producing bottle caps; in terms of structure, the rotary oil separator assembly and the oil separator plate assembly are modularly assembled in design. If the rotary oil separator assembly is damaged, only a spare rotary oil separator assembly needs to be replaced, thereby reducing the impact on production progress, saving maintenance costs and improving the convenience of maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of an existing rotary seal type oil separation mechanism;

[0014] Figure 2 It is a cross-sectional view of a static sealing oil distribution mechanism provided by an embodiment of the present invention;

[0015] Figure 3 is a cross-sectional view of another position of a static seal oil distribution mechanism provided by an embodiment of the present invention;

[0016] Figure 4 It is a partial cross-sectional view of different layers of the oil separation disc body provided by the embodiment of the present invention.

[0017] In the figure: 1-oil separation seat, 2, 2'-oil separation core shaft, 3-support connecting shaft, 4, 4'-oil separation plate, 4a-upper end surface, 4b-lower end surface, 10-oil transport groove, 11-medium pressure oil transport groove, 12-return oil transport groove, 13-low pressure oil transport groove, 13a-low pressure oil inlet, 14-high pressure oil transport groove, 21-medium pressure oil separation oil passage, 22-return oil separation oil passage, 23-low pressure oil separation oil passage, 24-high pressure oil separation oil passage, 25-first flange, 26-bearing, 27-first seal, 31-second flange, 32-second seal, 40, 40 '- oil transport channel, 41- medium pressure oil transport channel, 42- return oil transport channel, 43- low pressure oil transport channel, 44- high pressure oil transport channel, 50- lower die, 60- driving cylinder, 400- oil separation chamber, 400a- oil outlet, 401- medium pressure oil separation chamber, 401a- medium pressure oil outlet, 402- return oil separation chamber, 402a- return oil outlet, 402b- return oil unloading port, 403- low pressure oil separation chamber, 403a- low pressure oil outlet, 403b- low pressure oil unloading port, 404- high pressure oil separation chamber, 404a- high pressure oil outlet. DETAILED DESCRIPTION

[0018] The technical solution of the present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0019] Example

[0020] See also Figure 2 The static sealed oil separation mechanism provided in this embodiment is applied to the rotating parts of a rotary fully automatic compression molding cap making machine. Specifically, the static sealed oil separation mechanism includes: a rotary oil separation joint assembly and an oil separation plate assembly.

[0021] See below Figure 2 and Figure 3, the rotary oil-dividing joint assembly comprises: an oil-dividing seat 1 and an oil-dividing core shaft 2 rotatably arranged in the oil-dividing seat 1, a bearing 26 for supporting the rotation of the oil-dividing core shaft 2 is also arranged between the oil-dividing core shaft 2 and the oil-dividing seat 1, and a first sealing member 27 is provided at the rotational cooperation position between the oil-dividing core shaft 2 and the oil-dividing seat 1, four oil-dividing oil passages are opened inside the oil-dividing core shaft 2, in this embodiment, the four oil-dividing oil passages are respectively a high-pressure oil-dividing oil passage 24, a medium-pressure oil-dividing oil passage 21, a low-pressure oil-dividing oil passage 23 and a return oil-dividing oil passage 22, wherein the high-pressure oil-dividing oil passage 24, the medium-pressure oil-dividing oil passage 21 and the low-pressure oil-dividing oil passage 23 are respectively used for transporting high-pressure oil, medium-pressure oil and a low-pressure oil, and the return oil-dividing oil passage 22 is used for returning high-pressure oil, medium-pressure oil and low-pressure oil; the side wall of the oil-dividing core shaft 2 An oil inlet is provided which is connected to the four oil distribution channels respectively. Four oil transport grooves 10 are provided on the inner wall of the oil distribution seat 1 corresponding to the oil inlets of the four oil distribution channels from top to bottom around the axis of the oil distribution seat 1. In this embodiment, the four oil transport grooves 10 are a high-pressure oil transport groove 14, a low-pressure oil transport groove 13, a return oil transport groove 12 and a medium-pressure oil transport groove 11 from top to bottom. The side wall of the oil distribution seat 1 is provided with A high-pressure oil inlet (not shown), a low-pressure oil inlet 13a, a return oil inlet (not shown) and a medium-pressure oil inlet (not shown) are respectively connected to the oil transport grooves 10 at four locations, wherein the high-pressure oil inlet (not shown), the low-pressure oil inlet 13a and the medium-pressure oil inlet (not shown) provide high-pressure oil, low-pressure oil and medium-pressure oil respectively, and the return oil inlet (not shown) is used for the outflow of return oil hydraulic oil.

[0022] The oil separator assembly comprises: a circular oil separator body 4, the oil separator body 4 comprises an upper end face 4a and an opposite lower end face 4b, and the oil separator body 4 is provided with four oil separator chambers 400 along its axis. In the present embodiment, the four oil separator chambers 400 are arranged concentrically, and are a medium-pressure oil separator chamber 401, a high-pressure oil separator chamber 404, a return oil separator chamber 402 and a low-pressure oil separator chamber 403 from the outside to the inside, the center position of the lower end face 4b is connected to the oil separator core shaft 2, and the oil separator body 4 is also provided with a connecting oil channel and a corresponding oil separator chamber 403. The oil separation chamber 400 has a high-pressure oil transport passage 44, a medium-pressure oil transport passage 41, a low-pressure oil transport passage 43 and a return oil transport passage 42, and the upper end surface 4a is provided with a predetermined number of a medium-pressure oil outlet 401a, a high-pressure oil outlet 404a, a return oil outlet 402a and a low-pressure oil outlet 403a at positions corresponding to the medium-pressure oil separation chamber 401, the high-pressure oil separation chamber 404, the return oil separation chamber 402 and the low-pressure oil separation chamber 403, and these outlets 400a are used to communicate with a control oil valve (not shown).

[0023] Furthermore, a supporting connecting shaft 3 is provided between the lower end surface 4b of the oil separating disc body 4 and the oil separating core shaft 2, one end of the supporting connecting shaft 3 is connected to the lower end surface 4b, and the end away from the lower end surface 4b is provided with a second flange portion 31, the second flange portion 31 is connected to a first flange portion 25 of the oil separating core shaft 2, and an oil separation auxiliary oil passage connecting the oil transport oil passage 40 and the oil separation oil passage respectively is provided in the supporting connecting shaft 3, and the flange connection setting facilitates later inspection and maintenance. In this embodiment, the supporting connecting shaft 3 and the oil separating disc body 4 are an integrated structure, and the oil separation auxiliary oil passage is the oil transport oil passage 40.

[0024] Furthermore, a second seal 32 is provided at the connection between the first flange portion 25 and the second flange portion 31. In this embodiment, since the supporting connecting shaft 3 and the oil separator body 4 are an integral structure, a seal is omitted between the supporting connecting shaft 3 and the lower end surface 4b of the oil separator body 4.

[0025] Furthermore, the lower end surface 4b of the oil separator body 4 is provided with a high-pressure oil unloading port (not shown), a medium-pressure oil unloading port (not shown), a low-pressure oil unloading port 403b and a return oil unloading port 402b corresponding to the high-pressure oil separator chamber 404, the medium-pressure oil separator chamber 401, the low-pressure oil separator chamber 403 and the return oil separator chamber 402, so that when the oil pressure in the oil separator chambers 400 is too high, the unloading function is realized to maintain the balance and stability of the oil pressure in each of the oil separator chambers 400.

[0026] In conjunction with the accompanying drawings, the oil circuits for high pressure oil, medium pressure oil, low pressure oil and return oil in this embodiment are as follows:

[0027] Medium-pressure oil circuit: medium-pressure oil flows from the medium-pressure oil inlet on the oil separator seat 1 along the medium-pressure oil transport groove 11, the medium-pressure oil separation oil passage 21, the medium-pressure oil transport oil passage 41, the medium-pressure oil separation chamber 401, and the medium-pressure oil outlet 401a into a control oil valve installed on the upper end surface 4a of the oil separator plate 4;

[0028] High-pressure oil circuit: high-pressure oil flows from the high-pressure oil inlet on the oil separator seat 1 along the high-pressure oil transport groove 14, the high-pressure oil separation oil passage 24, the high-pressure oil transport oil passage 44, the high-pressure oil separation chamber 404, and the high-pressure oil outlet 404a into a control oil valve installed on the upper end surface 4a of the oil separator disc 4;

[0029] Low-pressure oil circuit: low-pressure oil flows from the low-pressure oil inlet 13a on the oil separator seat 1 along the low-pressure oil transport groove 13, the low-pressure oil separation oil passage 23, the low-pressure oil transport oil passage 43, the low-pressure oil separation chamber 403, and the low-pressure oil outlet 403a into a control oil valve installed on the upper end surface 4a of the oil separator disc 4;

[0030] Oil return circuit: The control valve opens the oil return channel of the hydraulic oil, and the hydraulic oil flows out from the oil return outlet 402a on the upper end surface 4a of the oil separation disc 4 along the oil return separation chamber 402, the oil return oil transport channel 42, the oil return separation channel 22, the oil return oil transport groove 12, and the oil return inlet on the oil separation seat 1.

[0031] Compared with the prior art, the static sealing oil distribution mechanism provided in this embodiment has the following advantages:

[0032] (1) The oil distributor assembly and the rotary oil distributor assembly are designed up and down and connected by flanges. If one of the components is damaged, it can be replaced as a whole, which is more convenient and does not affect the production progress;

[0033] (2) The oil passages that need to be drilled deep holes in the oil distribution plate 4 are only the high-pressure oil passage 44, the medium-pressure oil passage 41, the low-pressure oil passage 43 and the return oil passage 42, which greatly reduces the number of deep holes to be drilled and reduces the production and processing costs;

[0034] (3) The size of the disc-shaped oil separator 4 can be designed to be larger, and more control oil valves for controlling the stroke of the oil cylinder can be arranged on the upper end surface 4a of the oil separator 4, and these oil valves can be arranged more compactly, which effectively increases the output of bottle caps;

[0035] (4) The number of seals is reduced, and subsequent maintenance is more convenient. The annular oil separation chamber 400 in the oil separation plate body 4 is easy to process, and the oil leakage problem is also greatly reduced.

[0036] The above description is only a specific embodiment of the present invention, but those skilled in the art should understand that this is only an example, and the protection scope of the present invention is defined by the appended claims. Therefore, equivalent changes made to the scope of the patent application of the present invention still fall within the scope covered by the present invention.

Claims

1. A static seal oil distribution mechanism, characterized in that: include: A rotary oil distribution joint assembly, comprising: an oil distribution seat and an oil distribution core shaft rotatably disposed in the oil distribution seat, the oil distribution core shaft is provided with at least one oil distribution oil passage inside, the side wall of the oil distribution core shaft is provided with an oil inlet connected to the oil distribution oil passage, an oil transport groove is provided on the inner wall of the oil distribution seat corresponding to the oil inlet and surrounding the axis of the oil distribution seat, and an oil inlet connected to the oil transport groove is provided on the side wall of the oil distribution seat; and 4. The oil distribution pan of claim 1, wherein the at least one oil distribution chamber is provided in the oil distribution pan body along its axis, the at least one oil distribution chamber being connected to the oil distribution core shaft and the at least one oil transport passage being connected to the oil distribution passage and the corresponding oil distribution chamber. The at least one oil distribution chamber is provided in the oil distribution pan body at a position corresponding to the oil distribution chamber and a predetermined number of oil outlets being connected to the oil distribution chamber are provided on the upper end face at positions corresponding to the oil distribution chambers, and the at least one oil discharge passage is provided on the lower end face corresponding to the oil distribution chamber. Four oil distribution passages are provided inside the oil distribution core shaft. Four oil transport grooves are provided on the inner wall of the oil distribution seat respectively corresponding to the four oil distribution passages. Four oil distribution chambers corresponding to the four oil distribution passages are concentrically provided in the oil distribution pan body along its axis, and each of the oil distribution chambers is connected to a corresponding oil distribution passage by an independent oil transport passage. Among them, a supporting connecting shaft is also provided between the lower end surface of the oil separation disc body and the oil separation core shaft, a first sealing member is provided at the assembly point of the oil separation core shaft and the oil separation seat, and a second sealing member is respectively provided at the connection point between the supporting connecting shaft and the lower end surface and the oil separation core shaft.

2. The static sealing oil distribution mechanism according to claim 1, characterized in that: One end of the supporting connecting shaft is connected to the lower end surface, and the end away from the lower end surface is connected to the oil separation core shaft flange, and an oil separation auxiliary oil passage connecting the oil transport oil passage and the oil separation oil passage is provided in the supporting connecting shaft.

3. The static sealing oil distribution mechanism according to claim 2, characterized in that: The supporting connecting shaft and the oil separation plate body are designed to form an integrated structure.

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