Hopper cover pressing structure of mixing machine

Abstract

The utility model provides a hopper cover pressing structure of a mixing machine, which belongs to the technical field of mixing machines and comprises two pressing assemblies which are symmetrically arranged relative to a hopper cover of the mixing machine, each pressing assembly comprises an air cylinder mounting plate and a pressing air cylinder, each pressing air cylinder comprises a cylinder body, a front end cover and a driving shaft, and each cylinder body is connected to the upper end face of the corresponding air cylinder mounting plate. A first through hole allowing the front end cover to penetrate through is formed in the air cylinder mounting plate, a connecting base is arranged at the lower end of the driving shaft, a hopper cover pressing plate is arranged at the end, away from the driving shaft, of the connecting base, and at least two guide rods are evenly arranged on the hopper cover pressing plate in the circumferential direction with the driving shaft as the center; according to the hopper cover pressing device, the left pressing assembly and the right pressing assembly are used for pressing the hopper cover separately, the problem that after the hoppers are in butt joint with the hopper cover, due to the fact that the hoppers are different, the heights of the hoppers and the parallelism of the ground are different, the pressing effect on the hopper cover is affected is solved, meanwhile, the hoppers can be pressed under the guiding effect of the guide rods, and the hoppers can work stably.

Description

TECHNICAL FIELD

[0001] The utility model relates to mixing machine technical field, concretely relates to a hopper cover of mixing machine press structure. BACKGROUND

[0002] In the modern industrial production process, automatic lifting mixing machine is widely used in the uniform mixing of various materials. The traditional mixing equipment often requires manual intervention in the operation process, loads the material into the hopper and manually locks the hopper cover. This not only increases the labor intensity, but also has the risk of material leakage or uneven mixing due to improper operation. In order to improve production efficiency and reduce labor cost, a mixing machine capable of automatically lifting the hopper and reliably locking the hopper cover is needed. The device requires that after the hopper is placed to the specified position, the hopper is automatically lifted and clamped, the hopper is clamped by the rotary frame, and the stability and sealing of the hopper cover are maintained during rotation.

[0003] The current mixing machine lacks a reliable automatic locking mechanism to ensure that the hopper cover is stably pressed on the hopper, especially in the case of different heights of the hopper and different parallelism of the hopper to the ground. SUMMARY

[0004] The utility model aims at overcoming the shortcomings and deficiencies of prior art, and provides a hopper cover press structure of mixing machine.

[0005] The technical scheme adopted by the utility model is as follows: the application provides a hopper cover press structure of mixing machine, which comprises two press components symmetrically arranged on the hopper cover of the mixing machine, the press component comprises a cylinder mounting plate and a press cylinder, the press cylinder comprises a cylinder body, a front end cover and a drive shaft, the cylinder body is connected to the upper end surface of the cylinder mounting plate, the cylinder mounting plate is provided with a first through hole through which the front end cover passes, the lower end of the drive shaft is provided with a connecting seat, the end of the connecting seat away from the drive shaft is provided with a hopper cover pressing plate, at least two guide rods are uniformly arranged on the hopper cover pressing plate in a circumferential direction with the drive shaft as the center, a second through hole through which the guide rod passes is correspondingly arranged on the cylinder mounting plate, the cross section of the second through hole is L-shaped, and a sealing sleeve with an L-shaped cross section is arranged in the second through hole, a lower pressing ring is coaxially arranged on the lower end surface of the cylinder mounting plate and the second through hole, and the lower pressing ring is used to block the downward movement of the sealing sleeve.

[0006] In some embodiments, a lubricating ring is arranged between the upper end of the second through hole and the guide rod, the lubricating ring comprises a liquid storage cavity, a lower extrusion end and a liquid outlet, the lower extrusion end is arc-shaped and abuts against the upper end of the sealing sleeve, the liquid outlet is arranged towards the guide rod, the sealing sleeve comprises a horizontal part and a vertical part, the upper end surface of the horizontal part is provided with a spring, a spring positioning hole is arranged in the second through hole corresponding to the spring, and under the action of the spring, the sealing sleeve abuts against the lower pressing ring.

[0007] In some embodiments, the upper end surface of the cylinder mounting plate is coaxially provided with an upper pressing ring with the second through hole, the upper pressing ring is used for blocking the upward movement of the lubricating ring, and the upper pressing ring is detachably connected with the cylinder mounting plate.

[0008] In some embodiments, the upper end of the connecting seat is provided with an upper connecting hole, and the lower end is provided with a connecting disc, and the diameter of the connecting disc is not less than one half of the diameter of the hopper cover pressing plate.

[0009] In some embodiments, the connecting disc is provided with a first connecting hole, the hopper cover pressing plate is provided with a second connecting hole corresponding to the first connecting hole, the end surface of the guide rod towards the hopper cover pressing plate is provided with a third connecting hole, and the hopper cover pressing plate is provided with a fourth connecting hole corresponding to the third connecting hole, and the first connecting hole and the second connecting hole are threadedly connected by a bolt, and the fourth connecting hole and the third connecting hole are threadedly connected by a bolt.

[0010] In some embodiments, the upper end surface of the hopper cover pressing plate is provided with a guide rod positioning hole matched with the lower end of the guide rod.

[0011] In some embodiments, the outer periphery of the lower pressing ring is provided with a connecting ring, the connecting ring is threadedly connected with a collecting ring, the collecting ring is provided with a collecting cavity, the upper end of the collecting cavity is provided with a scraper close to the guide rod, the end of the scraper is in contact with the guide rod, and a guide cone surface is arranged along the collecting cavity.

[0012] In some embodiments, the upper pressing ring and the lubricating ring are provided with an extrusion spring, the lubricating ring further comprises an upper extrusion end, and the upper extrusion end is arc-shaped and in abutment with the extrusion spring.

[0013] The beneficial effects of the utility model are as follows: in the utility model, the left and right two pressing assemblies are used for pressing the hopper cover separately, the problem that the pressing effect on the hopper cover is affected by the different heights of the hopper and the parallelism of the ground after the hopper is connected to the hopper cover is solved, and the hopper can be pressed tightly under the guidance of the guide rod, so that the hopper can work stably.

[0014] Secondly, the cross sections of the second through hole and the sealing sleeve are both L-shaped, so that the sealing sleeve cannot move upward and separate from the second through hole when the guide rod moves upward, and the sealing sleeve cannot move downward and separate from the second through hole through the lower pressing ring, so that the reliability of the sealing at the position is ensured.

[0015] In addition, the structure is exquisite, the operation is convenient, the work is reliable, and the main structure basically adopts an assembly type structure, so that disassembly, assembly and maintenance are facilitated. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description only constitute some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to these drawings without creative labor, which still belong to the scope of the present application.

[0017] Figure 1 It is a schematic view of the mixing machine in the present application;

[0018] Figure 2 It is a schematic view of the automatic pressing structure in the present application;

[0019] Figure 3 It is Figure 2 the enlarged view of A in the present application;

[0020] Figure 4 It is Figure 3 the enlarged view of B in the present application;

[0021] Figure 5 It is Figure 4 the enlarged view of C in the present application. DETAILED DESCRIPTION

[0022] The following description provides specific application scenarios and requirements of the present application, so as to enable those skilled in the art to manufacture and use the contents in the present application. Various local modifications of the disclosed embodiments are obvious to those skilled in the art, and the general principles defined herein can be applied to other embodiments and applications without departing from the spirit and scope of the present application. Therefore, the present application is not limited to the shown embodiments, but the widest scope consistent with the claims.

[0023] In the description of the present application, it should be noted that, unless otherwise explicitly specified and limited, the orientation or position relationship indicated by the terms "longitudinal", "transverse", "radial", "length", "width", "thickness", "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is based on the orientation or position relationship shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0024] Secondly, the terms "first", "second" and similar words do not represent any order, quantity or importance, but are only used to distinguish different components, and should not be understood as a limitation on the embodiments of the present application.

[0025] Furthermore, the terms "mounting", "arrangement", "provided with", "connected", "linked" should be interpreted broadly. For example, it can be a fixed connection, detachable connection, or integral construction; it can be a mechanical connection, or electrical connection; it can be a direct connection, or indirect connection through an intermediate medium, or internal communication between two devices, elements or components.

[0026] For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0027] With regard to the drawings of the present application, it should be clearly understood that the drawings are for illustrative and descriptive purposes only, and are not intended to limit the scope of the present specification. It should also be understood that the drawings are not drawn to scale.

[0028] Embodiment one:

[0029] When the automatic lifting mixer is working, the hopper filled with materials needs to be placed in the mixer frame and finally clamped with the automatic lifting of the frame. The mixer will hold the hopper through the rotary frame, rotate along the mixing rotary shaft, and a reliable automatic locking mechanism is needed to fix the hopper cover on the hopper during rotation to meet the mixing requirements.

[0030] As shown in Figures 1 to 5 The hopper cover pressing structure of the mixer provided in the embodiment includes two pressing assemblies 100 symmetrically arranged on the hopper cover of the mixer. The pressing assembly includes a cylinder mounting plate 1 and a pressing cylinder 2. The pressing cylinder 2 includes a cylinder body 20, a front end cover 21 and a driving shaft 22. The cylinder body 20 is connected to the upper end surface of the cylinder mounting plate 1. The cylinder mounting plate 1 is provided with a first through hole 10 through which the front end cover 21 passes. The lower end of the driving shaft 22 is provided with a connecting seat 3. The end of the connecting seat 3 away from the driving shaft 22 is provided with a hopper cover pressing plate 4. The hopper cover pressing plate 4 is uniformly provided with at least two guide rods 5 around the center of the driving shaft 22. The cylinder mounting plate 1 is correspondingly provided with a second through hole 11 through which the guide rod 5 passes. The second through hole 11 has an L-shaped cross section and is provided with an L-shaped sealing sleeve 6 inside. The lower end surface of the cylinder mounting plate 1 is coaxially provided with a pressing ring 7 at the second through hole 11. The pressing ring 7 is used to block the downward movement of the sealing sleeve 6.

[0031] Through the above arrangement, the left and right two pressing assemblies 100 are used to press the hopper cover separately. After the hopper is butt-jointed with the hopper cover, the problem of affecting the pressing effect of the hopper cover due to the different heights of the hoppers and the different parallelisms of the hoppers to the ground is solved. At the same time, the hopper can be pressed tightly under the guidance of the guide rods 5, so that it can work stably.

[0032] Secondly, the second through hole 11 and the sealing sleeve 6 are both L-shaped in cross section, so that the sealing sleeve 6 does not move upward to disengage from the second through hole 11 when the guide rod 5 moves upward, and the sealing sleeve 6 is prevented from moving downward to disengage from the second through hole 11 by the lower pressing ring 7, ensuring the reliability of the position seal.

[0033] In addition, the structure is exquisite, the operation is convenient, the work is reliable, and the main structure basically adopts an assembled structure, so that disassembly, installation and maintenance are facilitated.

[0034] In the embodiment of the present disclosure, a lubricating ring 8 is arranged between the upper end of the second through hole 11 and the guide rod 5, the lubricating ring 8 comprises a liquid storage cavity 80, a lower extrusion end 81 and a liquid outlet 82, the lower extrusion end 81 is arc-shaped and abuts against the upper end of the sealing sleeve 6, the liquid outlet 82 is arranged towards the guide rod 5, the sealing sleeve 6 comprises a horizontal part 60 and a vertical part 61, the upper end surface of the horizontal part 60 is provided with a spring 62, the second through hole 11 is provided with a spring positioning hole 110 corresponding to the spring 62, under the action of the spring 62, the sealing sleeve 6 abuts against the lower pressing ring 7, when the guide rod 5 moves upward, the sealing sleeve 6 is driven to move upward, the lower extrusion end 81 is extruded to make the lubricating liquid in the liquid storage cavity 80 flow out of the liquid outlet 82, and the smoothness of the movement of the guide rod 5 is improved.

[0035] Secondly, the upper end surface of the cylinder mounting plate 1 is coaxially provided with an upper pressing ring 9 at the second through hole 11, the upper pressing ring 9 is used for blocking the upward movement of the lubricating ring 8, and the upper pressing ring 9 is detachably connected with the cylinder mounting plate 1, so as to facilitate replacement of the lubricating ring 8.

[0036] Further, the upper pressing ring 9 and the lubricating ring 8 are provided with an extrusion spring 90, and the lubricating ring 8 further comprises an upper extrusion end 83, the upper extrusion end 83 is arc-shaped and abuts against the extrusion spring 90, through the above arrangement, the stability of the liquid outlet of the lubricating ring 8 is ensured.

[0037] Optionally, the connecting seat 3 is provided with an upper connecting hole 30 at the upper end and a connecting disc 31 at the lower end, the diameter of the connecting disc 31 is not less than one half of the diameter of the hopper cover pressing plate 4, the contact area of the connecting seat 3 and the hopper cover pressing plate 4 is enlarged, and the pressing effect of the hopper cover pressing plate 4 on the hopper cover is improved.

[0038] In the embodiment of the present disclosure, the connecting plate 31 is provided with a first connecting hole 310, the hopper cover pressing plate 4 is provided with a second connecting hole 40 corresponding to the first connecting hole 310, the guide rod 5 is provided with a third connecting hole 50 facing the end surface of the hopper cover pressing plate 4, and the hopper cover pressing plate 4 is provided with a fourth connecting hole 41 corresponding to the third connecting hole 50. The first connecting hole 310 and the second connecting hole 40 are threadedly connected by a bolt, and the fourth connecting hole 41 and the third connecting hole 50 are threadedly connected by a bolt, so that the hopper cover pressing plate 4 is locked in both directions at the same time, and the stability of the hopper cover pressing plate 4 is better.

[0039] Secondly, the upper end surface of the hopper cover pressing plate 4 is provided with a guide rod positioning hole 42 matched with the lower end of the guide rod 5, so that the guide rod 5 and the hopper cover pressing plate 4 do not deviate during movement, and the pressing effect of the structure is improved.

[0040] Further, the connecting ring 70 is arranged on the outer periphery of the guide rod 5, the collecting ring 71 is threadedly connected to the connecting ring 70, the collecting cavity 72 is arranged on the collecting ring 71, the scraper 73 is arranged on the upper end of the collecting cavity 72 close to the guide rod 5, the end of the scraper 73 is in contact with the guide rod 5, and the guide cone surface 74 is arranged on the collecting cavity 72, so that the lubricating liquid on the guide rod 5 can be collected on the inner wall of the collecting cavity 72 when the guide rod 5 moves, which can be reused and can avoid dripping on the hopper cover pressing plate 4.

[0041] Further, the pressing cylinders 2 in the two pressing assemblies 100 are uniformly controlled by the control system to ensure that the hopper cover is pressed before and during the operation of the mixing machine.

[0042] In summary, after reading the detailed disclosure, those skilled in the art can understand that the foregoing detailed disclosure can be presented only in an exemplary manner and can not be limiting. Although it is not explicitly stated here, those skilled in the art can understand that the present application requires to cover various reasonable changes, improvements and modifications of the embodiments. These changes, improvements and modifications are intended to be proposed by the present application and are within the spirit and scope of the exemplary embodiments of the present application.

[0043] In addition, it should be understood that in the foregoing description of the embodiments of the present application, for the purpose of helping to understand one feature, the present application combines various features in a single embodiment, figure or its description for the purpose of simplifying the present application. However, this does not mean that the combination of these features is necessary, and those skilled in the art can certainly mark out part of the equipment as a separate embodiment when reading the present application. That is, the embodiments in the present application can also be understood as the integration of multiple secondary embodiments. And the content of each secondary embodiment is also true when there are less than all the features of a single foregoing disclosed embodiment.

[0044] Finally, it should be understood that the embodiments of the application disclosed herein are illustrative of the principles of the present application. Other modifications that are obvious within the spirit and principles of the application are encompassed within the scope of the application. Accordingly, the disclosure of embodiments of the application is intended to be illustrative, but not limiting, of the scope of the application. Those of skill in the art could readily devise their own modifications to the specific embodiments disclosed within the scope of the application. Accordingly, the disclosure of embodiments of the application is intended to be illustrative, but not limiting, of the scope of the application.

Claims

1. A hopper cover hold down structure for a mixer characterized by, The application relates to a compaction assembly for a mixer hopper cover, which comprises two symmetrical compaction assemblies (100), each of which comprises a cylinder mounting plate (1) and a compaction cylinder (2), the compaction cylinder (2) comprising a cylinder body (20), a front end cover (21) and a driving shaft (22), the cylinder body (20) being connected to the upper end surface of the cylinder mounting plate (1), a first through hole (10) being arranged on the cylinder mounting plate (1) and through which the front end cover (21) passes, a connecting seat (3) being arranged on the lower end of the driving shaft (22), a hopper cover pressing plate (4) being arranged on the end of the connecting seat (3) away from the driving shaft (22), at least two guide rods (5) being uniformly arranged on the hopper cover pressing plate (4) in a circumferential direction and taking the driving shaft (22) as the center, a second through hole (11) being correspondingly arranged on the cylinder mounting plate (1) and through which the guide rod (5) passes, the second through hole (11) being L-shaped in cross section and being internally provided with a sealing sleeve (6) which is also L-shaped in cross section, and a lower pressing ring (7) being coaxially arranged on the lower end surface of the cylinder mounting plate (1) and corresponding to the second through hole (11), the lower pressing ring (7) being used for blocking the downward movement of the sealing sleeve (6).

2. The cover hold-down structure for a hopper of a mixer according to claim 1, wherein A lubricating ring (8) is arranged between the upper end of the second through hole (11) and the guide rod (5), the lubricating ring (8) comprising a liquid storage cavity (80), a lower extrusion end (81) and a liquid outlet (82), the lower extrusion end (81) being arc-shaped and abutting against the upper end of the sealing sleeve (6), the liquid outlet (82) being arranged towards the guide rod (5), the sealing sleeve (6) comprising a horizontal part (60) and a vertical part (61), the upper end surface of the horizontal part (60) being provided with a spring (62), a spring positioning hole (110) being correspondingly arranged in the second through hole (11) and corresponding to the spring (62), and the sealing sleeve (6) abutting against the lower pressing ring (7) under the action of the spring (62).

3. The hopper cover hold down structure for a mixer according to claim 2, wherein An upper pressing ring (9) is coaxially arranged on the upper end surface of the cylinder mounting plate (1) and corresponding to the second through hole (11), the upper pressing ring (9) being used for blocking the upward movement of the lubricating ring (8), and the upper pressing ring (9) is detachably connected to the cylinder mounting plate (1).

4. The cover hold down structure for a hopper of a mixer according to claim 1, wherein An upper connecting hole (30) is arranged on the upper end of the connecting seat (3), and a connecting disc (31) is arranged on the lower end of the connecting seat (3), the diameter of the connecting disc (31) being not less than half of the diameter of the hopper cover pressing plate (4).

5. The hopper cover hold down structure for a mixer according to claim 4, wherein A first connecting hole (310) is arranged on the connecting disc (31), a second connecting hole (40) is arranged on the hopper cover pressing plate (4) and corresponding to the first connecting hole (310), a third connecting hole (50) is arranged on the end surface of the guide rod (5) and facing the hopper cover pressing plate (4), and a fourth connecting hole (41) is arranged on the hopper cover pressing plate (4) and corresponding to the third connecting hole (50), a bolt is used for threadedly connecting the first connecting hole (310) and the second connecting hole (40), and a bolt is used for threadedly connecting the fourth connecting hole (41) and the third connecting hole (50).

6. The cover hold-down structure for a hopper of a mixer according to claim 1 or 5, wherein A guide rod positioning hole (42) is arranged on the upper end surface of the hopper cover pressing plate (4) and corresponding to the lower end of the guide rod (5).

7. The cover hold down structure for a hopper of a mixer according to claim 2, wherein The lower pressing ring (7) is provided with a connecting ring (70) on the outer periphery of the guide rod (5), the connecting ring (70) is threadedly connected with a collecting ring (71), the collecting ring (71) is provided with a collecting cavity (72), the upper end of the collecting cavity (72) is provided with a scraper (73) close to the guide rod (5), the end of the scraper (73) is in contact with the guide rod (5), and a guide conical surface (74) is arranged along the collecting cavity (72) on the scraper (73).

8. The cover hold down structure for a hopper of a mixer according to claim 3, wherein The upper pressing ring (9) and the lubricating ring (8) are provided with an extrusion spring (90), and the lubricating ring (8) further comprises an upper extrusion end (83), the upper extrusion end (83) is arc-shaped and in abutment with the extrusion spring (90).

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