Transmission structure of forming machine

Abstract

A transmission structure of a forming machine comprises a base frame and a power shaft which is rotatably arranged on the base frame and driven by a power piece to rotate. The driven shaft is rotationally connected to the base frame, and a first meshing part is arranged at the end, close to the power shaft, of the driven shaft; the clutch assembly comprises an adapter shaft sleeve, a linear driving piece and a bearing frame, the adapter shaft sleeve is connected to the end, close to the driven shaft, of the power shaft in a sleeving mode, a second meshing part is arranged on the side, close to the driven shaft, of the adapter shaft sleeve, a clamping groove is formed in the peripheral wall of the adapter shaft sleeve in the circumferential direction, and the bearing frame is provided with a rotatable first roller inserted into the clamping groove. The linear driving piece acts on the bearing frame and is used for driving the bearing frame to move in the axial direction of the power shaft, and then the bearing frame drives the adapter shaft sleeve to move to achieve clutch switching between the second meshing part and the first meshing part. According to the scheme, convenient clutch control between the power shaft and the driven shaft is achieved by arranging the clutch assembly, and therefore an operator can replace and maintain the pressing roller or the driven shaft conveniently.

Description

Technical Field

[0001] This utility model relates to the technical field of mechanical transmission structures, and more specifically to a transmission structure for a molding machine. Background Technology

[0002] A forming machine is the main equipment for profile forming. It usually has multiple sets of pressure rollers with gradually changing shapes. The pressure rollers are driven by a motor shaft to rotate continuously. The strip-shaped raw material is gradually shaped into the required shape, such as a rectangle or concave shape, after passing through multiple sets of pressure rollers, thus completing the profile forming process.

[0003] Because molding machines occupy a large area, the number of molding machines that can be equipped in a factory is limited. In actual production, the specifications and dimensions of the profiles often change, requiring the replacement of the pressure rollers on the molding machine. However, the pressure rollers of existing molding machines are directly connected to the motor shaft via a coupling. When the pressure roller needs to be replaced, the coupling must be disassembled and reassembled. Considering the large number of pressure rollers, this method is obviously cumbersome, time-consuming, and labor-intensive. Furthermore, frequent disassembly and reassembly of the coupling may lead to failure. Utility Model Content

[0004] The purpose of this invention is to solve the problem that in existing molding machines, the pressure rollers and motor shafts are directly connected by a coupling. When the pressure rollers need to be replaced, the couplings need to be disassembled and reassembled. Considering the large number of pressure rollers, this method is obviously cumbersome, not only time-consuming and labor-intensive, but also the frequent disassembly and reassembly of the couplings may lead to failure.

[0005] To solve the above problems, this utility model provides a molding machine transmission structure, including a base frame, and:

[0006] A power shaft is rotatably mounted on a base frame, and the power shaft is driven to rotate by a power component;

[0007] The driven shaft is rotatably connected to the base frame and is coaxial with and adjacent to the power shaft. The driven shaft has a first engagement part at one end near the power shaft.

[0008] The clutch assembly includes an adapter sleeve, a linear drive, and a receiving frame. The adapter sleeve is fitted onto the end of the power shaft near the driven shaft. The adapter sleeve is circumferentially limited relative to the power shaft and axially slidable. The side of the adapter sleeve near the driven shaft has a second engagement portion. The outer peripheral wall of the adapter sleeve has a groove along its circumferential direction. The receiving frame has a rotatable first roller, and the axis of the first roller is arranged radially along the adapter sleeve. The first roller is inserted into the groove. The linear drive is connected to the base frame and is arranged parallel to the axis of the power shaft. The linear drive acts on the receiving frame and drives the receiving frame to move axially along the power shaft. In turn, the receiving frame drives the adapter sleeve to move, realizing the clutch switching between the second engagement portion and the first engagement portion.

[0009] In the above scheme, the drive shaft is used to connect with power components such as motors to achieve active rotation, while the driven shaft is used to connect with the pressure rollers of the molding machine or other equipment with similar requirements. Under normal circumstances, the second engagement part of the adapter sleeve and the first engagement part of the driven shaft are engaged. Since the adapter sleeve and the drive shaft are circumferentially limited, the power of the power component is transmitted from the drive shaft to the driven shaft through the adapter sleeve, realizing normal power transmission. When it is necessary to replace the pressure roller or the driven shaft, the linear drive component drives the receiving frame away from the driven shaft. The receiving frame drives the first roller and the adapter sleeve away from the driven shaft through the slot, and the second engagement part disengages from the first engagement part. At this time, the pressure roller or the driven shaft can be replaced. After the replacement is completed, the linear drive component drives the receiving frame closer to the driven shaft, and the second engagement part of the adapter sleeve re-engages with the first engagement part of the driven shaft, restoring normal power transmission. At the same time, since the first roller is rotatable, during the rotation of the receiving sleeve with the drive shaft, the first roller and the slot experience rolling friction, which effectively improves the wear problem. Compared with the existing technology, the above solution realizes convenient clutch control between the power shaft and the driven shaft by setting a clutch assembly, which makes it easier for operators to replace and maintain the pressure roller or the driven shaft. Moreover, the cooperation between the adapter sleeve and the receiving frame is achieved by setting a slot and the first roller to realize rolling friction, resulting in less wear and a longer service life.

[0010] In an improved embodiment, the receiving frame is provided with a plurality of rotatable second rollers on the side facing the driven shaft, and the axes of the second rollers are parallel to the axis of the driven shaft. The plurality of second rollers are distributed circumferentially along the driven shaft. When the linear drive drives the receiving frame to move toward the driven shaft, the second rollers abut against the outer peripheral wall of the driven shaft. Thus, when the linear drive drives the receiving frame to move toward the driven shaft, the second rollers will first abut against the outer peripheral wall of the driven shaft, realizing the pre-positioning function of the receiving frame relative to the driven shaft. Consequently, the second engagement part of the subsequent adapter sleeve can engage more accurately with the first engagement part. At the same time, the second rollers and the driven shaft also have rolling friction, resulting in less wear.

[0011] In an improved embodiment, there are two first rollers, located on opposite sides of the adapter sleeve, so that the receiving frame can better drive the movement of the adapter sleeve through the two first rollers.

[0012] In an improved embodiment, there are two linear drive members located on both sides of the support frame, thereby achieving a more stable driving effect of the linear drive members on the support frame.

[0013] In an improved embodiment, the base frame is provided with a guide rail arranged parallel to the axis of the power shaft, and a guide block is slidably connected to the guide rail. The receiving frame is connected to the guide block, thereby achieving the moving guidance function of the receiving frame through the sliding cooperation between the guide block and the guide rail.

[0014] In an improved embodiment, the power component includes a motor and a coupling, wherein the motor is connected to a power shaft via the coupling.

[0015] In an improved embodiment, the coupling is a telescopic universal coupling, the axis of the power shaft is arranged laterally, the base frame has a vertically movable lifting platform, and the power shaft is rotatably connected to the lifting platform. Thus, when the driven shaft needs to change its height, the height of the power shaft can be changed by moving the lifting platform, ensuring that the heights of the power shaft and the driven shaft are matched.

[0016] In an improved embodiment, the base frame is equipped with a lifting drive component, which acts on the lifting platform to control the vertical position of the lifting platform, thereby achieving automatic adjustment of the vertical position of the lifting platform through the lifting drive component. Attached Figure Description

[0017] Figure 1 A schematic diagram of the overall transmission structure of a molding machine Figure 1 ;

[0018] Figure 2 A top view of a molding machine transmission structure Figure 2 ;

[0019] Figure 3 This is a front view schematic diagram of a molding machine transmission structure;

[0020] Figure 4 For along Figure 3 A cross-sectional view of the CC section line;

[0021] Figure 5 for Figure 1 A magnified view of a portion of region A in the middle;

[0022] Figure 6 for Figure 2 A magnified view of a portion of region B in the middle;

[0023] Figure 7 for Figure 4 A magnified view of a portion of region D.

[0024] Explanation of reference numerals in the attached figures.

[0025] 1. Base frame; 11. Guide rail; 12. Guide block; 13. Lifting platform; 14. Lifting drive component; 2. Power shaft; 3. Driven shaft; 31. First engagement part; 4. Adapter bushing; 41. Second engagement part; 42. Slot; 5. Linear drive component; 6. Support frame; 61. First roller; 62. Second roller; 7. Power component; 71. Motor; 62. Coupling. Detailed Implementation

[0026] It should be understood by those skilled in the art that the following embodiments are merely illustrative of the technical principles of the embodiments of this application and are not intended to limit the scope of protection of the embodiments of this application. Those skilled in the art can make adjustments as needed to adapt to specific application scenarios.

[0027] In the following description of the embodiments, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application based on the specific circumstances.

[0028] In the embodiments of this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0029] The present application will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0030] Please see Figures 1-7 An embodiment of this utility model provides a molding machine transmission structure, including a base frame 1, and:

[0031] The power shaft 2 is rotatably mounted on the base frame 1, and the power shaft 2 is driven to rotate by the power component 7;

[0032] Driven shaft 3 is rotatably connected to base frame 1 and is coaxial with and adjacent to power shaft 2. A first engagement part 31 is provided at the end of driven shaft 3 near power shaft 2.

[0033] The clutch assembly includes an adapter sleeve 4, a linear drive 5, and a receiving frame 6. The adapter sleeve 4 is sleeved on the end of the power shaft 2 near the driven shaft 3. The adapter sleeve 4 is circumferentially limited relative to the power shaft 2 and axially slidable. The side of the adapter sleeve 4 near the driven shaft 3 is provided with a second engagement part 41. The outer peripheral wall of the adapter sleeve 4 is provided with a groove 42 along the circumferential direction. The receiving frame 6 is provided with a rotatable first roller 61, and the axis of the first roller 61 is arranged radially along the adapter sleeve 4. The first roller 61 is inserted into the groove 42. The linear drive 5 is connected to the base frame 1 and is arranged parallel to the axis of the power shaft 2. The linear drive 5 acts on the receiving frame 6 and is used to drive the receiving frame 6 to move axially along the power shaft 2. In turn, the receiving frame 6 drives the adapter sleeve 4 to move to realize the clutch switching between the second engagement part 41 and the first engagement part 31.

[0034] In the above scheme, the drive shaft 2 is used to connect with the motor 71 and other power components 7 to achieve active rotation, while the driven shaft 3 is used to connect with the pressure roller of the molding machine or other equipment with similar requirements. Under normal circumstances, the second engagement part 41 of the adapter sleeve 4 and the first engagement part 31 of the driven shaft 3 are engaged. Since the adapter sleeve 4 and the drive shaft 2 are circumferentially limited, the power of the power component 7 is transmitted from the drive shaft through the adapter sleeve 4 to the driven shaft 3, achieving normal power transmission. However, when it is necessary to replace the pressure roller or the driven shaft 3, the linear drive component 5 drives the support frame 6 away from the driven shaft 3. 6. The first roller 61 and the adapter sleeve 4 are driven away from the driven shaft 3 by the slot 42, and the second engagement part 41 disengages from the first engagement part 31. At this time, the pressure roller or driven shaft 3 can be replaced. After replacement, the linear drive 5 drives the receiving frame 6 to approach the driven shaft 3, and the second engagement part 41 of the adapter sleeve 4 re-engages with the first engagement part 31 of the driven shaft 3, restoring normal power transmission. At the same time, since the first roller 61 is rotatable, rolling friction occurs between the first roller 61 and the slot 42 during the rotation of the receiving sleeve with the power shaft 2, effectively improving the wear problem. Compared with the prior art, the above solution achieves convenient clutch control between the power shaft 2 and the driven shaft 3 by setting a clutch assembly, which facilitates the operator to replace and maintain the pressure roller or driven shaft 3. Moreover, the cooperation between the adapter sleeve 4 and the receiving frame 6 achieves rolling friction through the slot 42 and the first roller 61, resulting in less wear and a longer service life.

[0035] More specifically, in this embodiment, the axes of both the power shaft 2 and the driven shaft 3 are arranged transversely. The end of the power shaft 2 near the driven shaft 3 is provided with a long key, and the inner circumferential wall of the adapter sleeve 4 is provided with an elongated keyway that matches the long key, thereby realizing that the adapter sleeve 4 is circumferentially limited relative to the power shaft 2 and axially slidable. Of course, the adapter sleeve 4 can also be circumferentially limited relative to the power shaft 2 and axially slidable in other ways, such as designing the end of the power shaft 2 near the driven shaft 3 as the direction, and designing the inner hole of the adapter sleeve 4 as a square hole.

[0036] The first engagement part 31 can be a groove provided in the driven shaft 3, and the second engagement part 41 can be a tooth provided in the adapter sleeve. Thus, after the tooth is engaged in the groove, the engagement of the first engagement part 31 and the second engagement part 41 can be realized. Of course, the first engagement part 31 and the second engagement part 41 can also be in other forms, such as the first engagement part 31 being a square groove and the second engagement part 41 being a square boss.

[0037] As an improvement to this embodiment, the receiving frame 6 is provided with a plurality of rotatable second rollers 62 on the side facing the driven shaft 3, and the axis of the second rollers 62 is parallel to the axis of the driven shaft 3. The plurality of second rollers 62 are distributed circumferentially along the driven shaft 3. When the linear drive member 5 drives the receiving frame 6 to move toward the driven shaft 3, the second rollers 62 abut against the outer peripheral wall of the driven shaft 3. Thus, when the linear drive member 5 drives the receiving frame 6 to move toward the driven shaft 3, the second rollers 62 will first abut against the outer peripheral wall of the driven shaft 3, realizing the pre-positioning function of the receiving frame 6 relative to the driven shaft 3. As a result, the second engagement part 41 of the subsequent adapter sleeve 4 can engage more accurately with the first engagement part 31. At the same time, the second rollers 62 and the driven shaft 3 also have rolling friction, resulting in less wear.

[0038] More specifically, such as Figure 5 As shown, in this embodiment, the receiving frame 6 is arc-shaped and located above the driven shaft 3. There are three second rollers 62, which are spaced apart on the side of the receiving frame 6 facing the driven shaft 3. When the receiving frame 6 approaches the driven shaft 3, the three second rollers 62 will abut against the upper side of the driven shaft 3 to achieve the pre-positioning of the receiving frame 6 relative to the driven shaft 3.

[0039] In this embodiment, there are two first rollers 61, which are located on both sides of the adapter sleeve 4, so that the receiving frame 6 can better drive the movement of the adapter sleeve 4 through the two first rollers 61.

[0040] In this embodiment, there are two linear drive components 5, located on both sides of the receiving frame 6, thereby achieving a more stable driving effect of the linear drive components 5 on the receiving frame 6. The linear drive components 5 can be cylinders or electric cylinders, etc., and this design does not limit them.

[0041] To improve the stability of the support frame 6, the base frame 1 is provided with a guide rail 11 parallel to the axis of the power shaft 2. A guide block 12 is slidably connected to the guide rail 11. The support frame 6 is connected to the guide block 12, thereby achieving the guiding effect of the support frame 6 through the sliding cooperation between the guide block 12 and the guide rail 11.

[0042] In this embodiment, the power component 7 includes a motor 71 and a coupling 72. The motor 71 is connected to the power shaft 2 through the coupling 72, so that the motor 71 can realize the rotation of the power shaft 2 through the coupling 72.

[0043] Furthermore, considering that the vertical position of the driven shaft 3 may need to be adjusted when the specifications and dimensions of the profile change, in the preferred embodiment, the coupling 72 can be a telescopic universal coupling. At the same time, the base frame 1 has a lifting platform 13 that can move vertically. The power shaft 2 is rotatably connected to the lifting platform 13. Thus, when the height of the driven shaft 3 needs to be changed, the height of the power shaft 2 can be changed by moving the lifting platform 13 to ensure that the heights of the power shaft 2 and the driven shaft 3 are matched.

[0044] Furthermore, the base frame 1 is provided with a lifting drive component 14, which can be a cylinder or electric cylinder arranged vertically. The output end of the lifting drive component 14 is connected to the lifting platform 13, thereby realizing the automatic adjustment of the vertical position of the lifting platform 13 through the lifting drive component 14.

[0045] It should be noted that in the description of this application, the terms "inner" and "outer," etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. This is only for the convenience of description and does not indicate or imply that the device or component must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this application. All directional indications (such as up, down, left, right, front, back, inner, and outer) are only used to explain the relative positional relationships and movement between components in a specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0046] In the description of this application, the references to terms such as "an embodiment," "some embodiments," "in this embodiment," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0047] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A molding machine drive structure, characterized by, Including the base frame (1), and: A power shaft (2) is rotatably mounted on a base frame (1), and the power shaft (2) is driven to rotate by a power component (7); Driven shaft (3) is rotatably connected to base frame (1) and coaxial with and adjacent to power shaft (2). The driven shaft (3) is provided with a first engagement part (31) at one end near power shaft (2). The clutch assembly includes an adapter sleeve (4), a linear drive element (5), and a support frame (6). The adapter sleeve (4) is fitted onto one end of the drive shaft (2) near the driven shaft (3). The adapter sleeve (4) is circumferentially limited relative to the drive shaft (2) and axially slidable. A second engagement part (41) is provided on the side of the adapter sleeve (4) near the driven shaft (3). A groove (42) is provided circumferentially on the outer peripheral wall of the adapter sleeve (4). The support frame (6) is provided with a rotatable first roller (61). The axis of the wheel (61) is arranged radially along the adapter sleeve (4). The first roller (61) is inserted into the slot (42). The linear drive (5) is connected to the base frame (1) and arranged parallel to the axis of the power shaft (2). The linear drive (5) acts on the receiving frame (6) and is used to drive the receiving frame (6) to move axially along the power shaft (2). Then the receiving frame (6) drives the adapter sleeve (4) to move to realize the clutch switching between the second engagement part (41) and the first engagement part (31).

2. The molding machine drive structure of claim 1, wherein, The receiving frame (6) is provided with a plurality of rotatable second rollers (62) on the side facing the driven shaft (3), and the axis of the second rollers (62) is parallel to the axis of the driven shaft (3). The plurality of second rollers (62) are distributed circumferentially along the driven shaft (3). When the linear drive (5) drives the receiving frame (6) to move toward the driven shaft (3), the second rollers (62) abut against the outer peripheral wall of the driven shaft (3).

3. The molding machine drive structure of claim 1, wherein There are two first rollers (61) located on both sides of the adapter sleeve (4).

4. The molding machine drive structure of claim 1 or 3, wherein The linear drive unit (5) consists of two parts, which are located on both sides of the support frame (6).

5. The molding machine drive structure of claim 1 wherein, The base frame (1) is provided with a guide rail (11) arranged parallel to the axis of the power shaft (2), and a guide block (12) is slidably connected on the guide rail (11). The receiving frame (6) is connected to the guide block (12).

6. The molding machine drive structure of claim 1 wherein, The power component (7) includes a motor (71) and a coupling (72), wherein the motor (71) is connected to the power shaft (2) via the coupling (72).

7. The molding machine drive structure of claim 6, wherein, The coupling (72) is a telescopic universal coupling. The axis of the power shaft (2) is arranged in the transverse direction. The base frame (1) has a lifting platform (13) that can move vertically. The power shaft (2) is rotatably connected to the lifting platform (13).

8. The molding machine drive structure of claim 7, wherein, The base frame (1) is provided with a lifting drive (14), which acts on the lifting platform (13) to control the vertical position of the lifting platform (13).

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