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] The present invention relates to the technical field of mechanical transmission structures, and in particular to a transmission structure of a molding machine. Background Art

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

[0003] Because forming machines occupy a large area, the number of machines that can be installed in a factory is limited. In actual production, the specifications and dimensions of profiles often change, necessitating the replacement of the rollers on the forming machines. However, the existing forming machines' rollers are directly connected to the motor shaft via a coupling. Whenever a roller needs to be replaced, the coupling must be disassembled and reassembled. This is a cumbersome and laborious process, considering the large number of rollers. Frequent disassembly and assembly of the coupling can lead to failure. Summary of the Invention

[0004] The purpose of the present invention is to solve the problem that the pressure roller and the motor shaft of the existing forming machine are directly connected through a coupling. When the pressure roller needs to be replaced, the coupling needs 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 assembly of the coupling may lead to failure.

[0005] To solve the above problems, the present invention provides a molding machine transmission structure, comprising a base frame, and:

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

[0007] A driven shaft is rotatably connected to the base frame and is coaxial with and adjacent to the power shaft. A first engaging portion is provided at one end of the driven shaft close to the power shaft, and a pressure roller is provided at the middle of the driven shaft.

[0008] The clutch assembly includes an adapter sleeve, a linear drive member and a receiving frame, wherein the adapter sleeve is sleeved on one end of the power shaft close to the driven shaft, the adapter sleeve is circumferentially limited relative to the power shaft and is axially slidable, and a second bite portion is provided on the side of the adapter sleeve close to the driven shaft, and a card groove is provided on the outer peripheral wall of the adapter sleeve along the circumference, and the receiving frame is provided with a rotatable first roller and the axis of the first roller is arranged along the radial direction of the adapter sleeve, and the first roller is inserted into the card groove, and the linear drive member is connected to the base frame and is arranged parallel to the axis of the power shaft, and the linear drive member acts on the receiving frame and is used to drive the receiving frame to move along the axial direction of the power shaft, and then the receiving frame drives the adapter sleeve to move to realize the clutch switching between the second bite portion and the first bite portion.

[0009] In the above scheme, the power shaft is used to connect with the power parts such as the motor to realize active rotation, and the driven shaft is used to connect with the pressure roller of the forming machine or equipment with similar requirements. Under normal circumstances, the second engaging portion of the adapter sleeve and the first engaging portion of the driven shaft are in an engaging state. Since the adapter sleeve and the power shaft are circumferentially limited, the power of the power part is transmitted from the active shaft to the driven shaft through the adapter sleeve to realize normal power transmission; and when it is necessary to replace the pressure roller or the driven shaft, the linear drive member drives the receiving frame away from the driven shaft, and the receiving frame drives the first roller and the adapter sleeve away from the driven shaft through the slot, and the second engaging portion disengages from the first engaging portion. At this time, the pressure roller or the driven shaft can be replaced. After the replacement is completed, the linear drive member drives the receiving frame close to the driven shaft, and the second engaging portion of the adapter sleeve re-engages with the first engaging portion of the driven shaft to restore normal power transmission; at the same time, since the first roller is rotatable, during the process of the receiving sleeve rotating with the power shaft, there is rolling friction between the first roller and the slot, which effectively improves the wear problem. Compared with the existing technology, the above scheme realizes convenient clutch control between the power shaft and the driven shaft by setting a clutch assembly, thereby facilitating the operator to replace and maintain the pressure roller or the driven shaft, and the cooperation between the adapter sleeve and the receiving frame realizes rolling friction by setting a card groove and a first roller, resulting in less wear and a long service life.

[0010] In an improved solution, a plurality of rotatable second rollers are provided on the side of the supporting frame 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 along the circumference of the driven shaft. When the linear drive member drives the supporting frame to move toward the driven shaft, the second rollers abut against the outer peripheral wall of the driven shaft. Therefore, when the linear drive member drives the supporting frame to move toward the driven shaft, the second rollers will first abut against the outer peripheral wall of the driven shaft, thereby realizing the pre-positioning of the supporting frame relative to the driven shaft, and then the second engaging portion of the subsequent adapter sleeve can be more accurately engaged with the first engaging portion; at the same time, there is also rolling friction between the second roller and the driven shaft, and wear is small.

[0011] In an improved solution, there are two first rollers, which are respectively located on both 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 solution, there are two linear drive members, which are respectively located on both sides of the receiving frame, so as to achieve a more stable driving effect of the linear drive members on the receiving frame.

[0013] In an improved solution, 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, so that the movement guiding function of the receiving frame is achieved through the sliding cooperation between the guide block and the guide rail.

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

[0015] In an improved solution, the coupling is a telescopic universal coupling, the axis of the power shaft is arranged horizontally, the base frame has a lifting platform that can move vertically, and the power shaft is rotatably connected to the lifting platform. Therefore, when the driven shaft needs to change its height, the height of the power shaft can be changed by moving the lifting platform to ensure that the height of the power shaft and the driven shaft are adapted.

[0016] In an improved solution, the base frame is provided with a lifting drive member, which acts on the lifting platform to control the vertical position of the lifting platform, thereby realizing automatic adjustment of the vertical position of the lifting platform through the lifting drive member. BRIEF DESCRIPTION OF THE DRAWINGS

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

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

[0019] Figure 3 It is a schematic diagram of the main view of the transmission structure of a molding machine;

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

[0021] Figure 5 for Figure 1 A partial enlarged schematic diagram of area A in the middle;

[0022] Figure 6 for Figure 2 A partial enlarged schematic diagram of area B in the middle;

[0023] Figure 7 for Figure 4 A partial enlarged schematic diagram of the D area in the middle.

[0024] Description of reference numerals:

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

[0026] It should be understood by those skilled in the art that the following embodiments are merely intended to explain the technical principles of the embodiments of the present application and are not intended to limit the scope of protection of the embodiments of the present application. Those skilled in the art may adjust them as needed to suit specific applications.

[0027] In the following descriptions of the embodiments, it should be noted that, unless otherwise specified or limited, the terms "connected" and "connection" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, or indirect connections through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in the embodiments of this application based on the specific circumstances.

[0028] In the embodiments of the present application, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, a first feature being "above," "above," and "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

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

[0030] See also Figure 1-Figure 7 The embodiment of the present invention provides a transmission structure of a molding machine, comprising a base frame 1, and:

[0031] The power shaft 2 is rotatably mounted on the base frame 1 and is driven by a power member 7 to rotate.

[0032] The driven shaft 3 is rotatably connected to the base frame 1 and is coaxial with and adjacent to the power shaft 2. A first engaging portion 31 is provided at one end of the driven shaft 3 close to the power shaft 2, and a pressure roller is provided in the middle of the driven shaft 3.

[0033] The clutch assembly includes an adapter sleeve 4, a linear drive member 5 and a receiving frame 6. The adapter sleeve 4 is sleeved on one end of the power shaft 2 close to the driven shaft 3. The adapter sleeve 4 is circumferentially limited relative to the power shaft 2 and can slide axially. A second engaging portion 41 is provided on the side of the adapter sleeve 4 close to the driven shaft 3. A card groove 42 is provided on the outer peripheral wall of the adapter sleeve 4 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 along the radial direction of the adapter sleeve 4. The first roller 61 is inserted into the card groove 42. The linear drive member 5 is connected to the base frame 1 and is arranged parallel to the axis of the power shaft 2. The linear drive member 5 acts on the receiving frame 6 and is used to drive the receiving frame 6 to move along the axial direction of the power shaft 2, and then the receiving frame 6 drives the adapter sleeve 4 to move to realize the clutch switching between the second engaging portion 41 and the first bite portion 31.

[0034] In the above scheme, the power shaft 2 is used to connect with the power member 7 such as the motor 71 to realize active rotation, and the driven shaft 3 is used to connect with the pressure roller of the forming machine or equipment with similar requirements. Under normal circumstances, the second bite portion 41 of the adapter sleeve 4 and the first bite portion 31 of the driven shaft 3 are in a bite state. Since the adapter sleeve 4 and the power shaft 2 are circumferentially limited, the power of the power member 7 is transmitted from the active shaft to the driven shaft 3 through the adapter sleeve 4 to realize normal power transmission; and when it is necessary to replace the pressure roller or the driven shaft 3, the linear drive member 5 drives the receiving frame 6 away from the driven shaft 3, and the receiving frame 6 drives the first roller 61 and the adapter sleeve 4 away from the driven shaft 3 through the slot 42, and the second bite portion 41 disengages from the first bite portion 31. At this time, the pressure roller or the driven shaft 3 can be replaced. After the replacement is completed, the linear drive member 5 drives the receiving frame 6 close to the driven shaft 3, and the second bite portion 41 of the adapter sleeve 4 re-engages with the first bite portion 31 of the driven shaft 3, restoring normal power transmission. At the same time, because the first roller 61 is rotatable, during the process of the receiving sleeve rotating with the power shaft 2, rolling friction occurs between the first roller 61 and the slot 42, effectively improving the wear problem. Compared with the prior art, the above scheme realizes convenient clutch control between the power shaft 2 and the driven shaft 3 by setting a clutch assembly, thereby facilitating the operator to replace and maintain the pressure roller or the driven shaft 3. In addition, the cooperation between the adapter sleeve 4 and the receiving frame 6 realizes rolling friction by setting 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 the power shaft 2 and the driven shaft 3 are both arranged horizontally, a long key is provided at one end of the power shaft 2 close to the driven shaft 3, and the inner circumferential wall of the adapter sleeve 4 is provided with a long key groove matching the long key, thereby realizing the circumferential limitation of the adapter sleeve 4 relative to the power shaft 2 and the axial sliding; of course, other forms can also be used to realize the circumferential limitation of the adapter sleeve 4 relative to the power shaft 2 and the axial sliding. For example, the end of the power shaft 2 close to the driven shaft 3 is designed as a direction, and the inner hole of the adapter sleeve 4 is designed as a square hole.

[0036] The first engaging portion 31 can be a groove provided on the driven shaft 3, and the second engaging portion 41 can be a cog provided on the adapter sleeve, so that the cog is engaged with the first engaging portion 31 and the second engaging portion 41 when the cog is engaged with the groove; of course, the first engaging portion 31 and the second engaging portion 41 can also be in other forms, for example, the first engaging portion 31 is a square groove, and the second engaging portion 41 is a square boss, etc.

[0037] As an improvement to this embodiment, a plurality of rotatable second rollers 62 are provided on the side of the receiving frame 6 facing the driven shaft 3, and the axes of the second rollers 62 are parallel to the axis of the driven shaft 3. The plurality of second rollers 62 are distributed along the circumference of 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. Therefore, 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, thereby realizing the pre-positioning of the receiving frame 6 relative to the driven shaft 3, and then the second engaging portion 41 of the subsequent adapter sleeve 4 can be more accurately engaged with the first engaging portion 31; at the same time, there is also rolling friction between the second rollers 62 and the driven shaft 3, and the wear is small.

[0038] More specifically, Figure 5 As shown, in this embodiment, the receiving frame 6 is arc-shaped and is located above the driven shaft 3. There are three second rollers 62 and they are spaced apart on the side of the receiving frame 6 facing the driven shaft 3. When the receiving frame 6 is close to the driven shaft 3, the three second rollers 62 will abut against the upper side of the driven shaft 3 to realize 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 respectively located on both sides of the adapter sleeve 4 , so that the supporting frame 6 can better drive the transfer sleeve 4 to move through the two first rollers 61 .

[0040] In this embodiment, there are two linear drive members 5 and they are respectively located on both sides of the support frame 6, so as to achieve a more stable driving effect of the linear drive member 5 on the support frame 6. The linear drive member 5 can be a cylinder or an electric cylinder, etc., which is not limited in this design.

[0041] In order to improve the movement stability of the receiving frame 6, 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 to the guide rail 11. The receiving frame 6 is connected to the guide block 12, so that the movement guiding effect of the receiving frame 6 is achieved through the sliding cooperation between the guide block 12 and the guide rail 11.

[0042] In this embodiment, the power member 7 includes a motor 71 and a coupling 72 . The motor 71 is connected to the power shaft 2 via the coupling 72 , so that the motor 71 can realize the rotation of the power shaft 2 via 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 a preferred embodiment, the coupling 72 can be adopted as a telescopic universal coupling. At the same time, the base frame 1 has a lifting platform 13 that can be moved vertically, and the power shaft 2 is rotatably connected to the lifting platform 13. Therefore, when the driven shaft 3 needs to change its height, the height of the power shaft 2 can be changed by moving the lifting platform 13 to ensure that the height of the power shaft 2 is adapted to the driven shaft 3.

[0044] Furthermore, the base frame 1 is provided with a lifting drive 14, which can be a pneumatic cylinder or electric cylinder arranged vertically. The output end of the lifting drive 14 is connected to the lifting platform 13, so that the vertical position of the lifting platform 13 is automatically adjusted by the lifting drive 14.

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

[0046] In the description of the present application, the description with reference to the terms "one embodiment", "some embodiments", "in the present embodiment", "specific example", or "some examples" means that the specific features, mechanisms, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, mechanisms, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples, unless they are contradictory.

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

Claims

1. A molding machine transmission structure, characterized in that: It comprises a base frame (1), and: A power shaft (2) is rotatably arranged on the base frame (1), and the power shaft (2) is driven by a power member (7) to rotate; A driven shaft (3) is rotatably connected to the base frame (1) and is coaxial with and adjacent to the power shaft (2). A first engaging portion (31) is provided at one end of the driven shaft (3) close to the power shaft (2), and a pressure roller is provided at the middle of the driven shaft (3); The clutch assembly comprises an adapter sleeve (4), a linear drive member (5) and a receiving frame (6), wherein the adapter sleeve (4) is sleeved on one end of the power shaft (2) close to the driven shaft (3), the adapter sleeve (4) is circumferentially limited relative to the power shaft (2) and axially slidable, a second engaging portion (41) is provided on the side of the adapter sleeve (4) close to the driven shaft (3), a card slot (42) is provided on the outer peripheral wall of the adapter sleeve (4) along the circumferential direction, and the receiving frame (6) is provided with a rotatable first roller (61) and the first roller The axis of the wheel (61) is arranged along the radial direction of the adapter sleeve (4), the first roller (61) is inserted into the slot (42), the linear drive member (5) is connected to the base frame (1) and is arranged parallel to the axis of the power shaft (2), the linear drive member (5) acts on the receiving frame (6) and is used to drive the receiving frame (6) to move along the axial direction of the power shaft (2), and then the receiving frame (6) drives the adapter sleeve (4) to move to realize the clutch switching between the second bite portion (41) and the first bite portion (31).

2. The molding machine transmission structure according to claim 1, characterized in that: The receiving frame (6) is provided with a plurality of rotatable second rollers (62) on one side facing the driven shaft (3), and the axes of the second rollers (62) are parallel to the axis of the driven shaft (3). The plurality of second rollers (62) are distributed along the circumference of 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).

3. The molding machine transmission structure according to claim 1, characterized in that: There are two first rollers (61) and they are respectively located on both sides of the adapter sleeve (4).

4. The molding machine transmission structure according to claim 1 or 3, characterized in that: There are two linear drive members (5) and they are respectively located on both sides of the supporting frame (6).

5. The molding machine transmission structure according to claim 1, characterized in that: The base frame (1) is provided with a guide rail (11) arranged parallel to the axis of the power shaft (2); a guide block (12) is slidably connected to the guide rail (11); and the receiving frame (6) is connected to the guide block (12).

6. The molding machine transmission structure according to claim 1, characterized in that: The power member (7) comprises a motor (71) and a coupling (72), and the motor (71) is connected to the power shaft (2) via the coupling (72).

7. The transmission structure of the molding machine according to claim 6, characterized in that: 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 in the vertical direction, and the power shaft (2) is rotatably connected to the lifting platform (13).

8. The transmission structure of the molding machine according to claim 7, characterized in that: The base frame (1) is provided with a lifting drive member (14), and the lifting drive member (14) acts on the lifting platform (13) to control the vertical position of the lifting platform (13).

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