Motor assembly
By using the motor assembly of the control group and the support group, the problem of inconsistent traction action of the roll material in the existing technology has been solved, achieving constant traction and high-speed operation, and simplifying maintenance and adaptability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- MARCHESINI GROUP SPA
- Filing Date
- 2024-10-02
- Publication Date
- 2026-07-10
AI Technical Summary
When existing motor assemblies perform traction actions on the coil, the thrust is not constant, which causes the rollers to rotate slowly and the coil to slip, especially in complex operations and high-speed conditions.
The motor assembly consists of a control group and a support group. The control group includes a control roller and a control driver, and the support group includes first and second support rollers. By engaging and rotating the control roller and the support roller, a constant roll traction action is achieved, avoiding the use of elastic thrust elements.
It achieves constant roll traction, avoids roller slowdown and roll slippage, supports high-speed operation, and simplifies maintenance and adaptability to different roll sizes.
Smart Images
Figure CN122374237A_ABST
Abstract
Description
[0001] This invention relates to a motor assembly. Furthermore, this invention relates to a system for performing operations on a roll of material, the system including the motor assembly.
[0002] In the prior art, there are known system embodiments that operate on rolled materials. Known motor assembly solutions are also suitable for performing rolled material traction actions.
[0003] In this discussion, the term "web" means any type of article in the form of a thin, flexible strip, including films or foils as well.
[0004] Specifically, the system includes an operating assembly suitable for performing specific operations on a roll material: the operating assembly receives the roll material to be processed as input at an input end and returns the processed roll material as output at an output end.
[0005] According to known embodiments, the system includes a labeling system: the operating assembly of the labeling system receives a roll of material to be processed (i.e., a roll with a label) and returns a processed roll of material (i.e., a roll without a label). That is, the operating assembly decouples the label and places it on the product, or transfers it to another assembly that places it on the product.
[0006] In order to perform the operation on the roll, a known system performs movement of the roll, which varies over time in terms of speed, traction, or pushing action.
[0007] Specifically, known systems for moving rolls of material include at least one motor assembly adapted to pull / unwind / rewind the roll from a spool. In other words, known motor assembly embodiments essentially act as a traction assembly, performing the action of pulling out the roll.
[0008] Known motor assembly solutions typically include a roller pair, such that the roll is clamped between the two rollers and then pulled. Specifically, to ensure the roll is clamped between the two rollers, one roller is fixed while the other is subjected to radial thrust. In known solutions, this radial thrust is achieved by providing at least one resilient thrust element.
[0009] Known motor assembly solutions and typical problems with known systems relate to traction action, which is not particularly effective and is generally not constant over time. Specifically, in known solutions, the elastic thrust component is not particularly effective during thrust application: in fact, high radial thrust causes the rollers to rotate slower (which is obviously undesirable) and also causes the roll to slip; furthermore, the radial thrust application is often found to be not constant over time, decreasing as the motor assembly is used.
[0010] These problems become more severe as the operations performed by the operating assembly on the roll material become more complex, and as the speed of these operations increases. For example, these problems become more pronounced when alternating traction of the roll material is required.
[0011] The purpose of this invention is to provide a system that can successfully meet all the above-mentioned requirements while minimizing or eliminating the above-mentioned problems.
[0012] This objective is achieved by the motor assembly claimed in claim 1, specifically by a motor assembly suitable for performing efficient and constant roll traction. This objective is also achieved by the system comprising said motor assembly as described in claim 12. Claims dependent on these claims claim other features and provide further technical benefits.
[0013] Furthermore, other features and advantages of the present invention will become apparent from the following description of preferred embodiments, given by way of non-limiting example in conjunction with the accompanying drawings, wherein: - Figure 1 A schematic diagram of the system according to the present invention is shown; - Figures 2' and 2'' show two perspective views of an electric motor assembly constructed in a working configuration according to the present invention; - Figure 3 The exploded perspective views of the motor assembly shown in Figures 2' and 2'' are illustrated. - Figure 4a and Figure 4b The side view and front view of the motor assembly in Figure 2' and Figure 2'' are shown respectively; - Figure 5a It is along Figure 4a A sectional view of section AA; - Figure 5b It is along Figure 4b The sectional view of section BB shown; - Figures 6' and 6'' show two perspective views of the motor assembly configured in an open configuration according to the present invention; - Figure 7 The exploded perspective views of the motor assembly shown in Figures 6' and 6'' are illustrated. - Figure 8a and Figure 8b The side view and front view of the motor assembly in Figures 6' and 6'' are shown respectively; - Figure 9a It is along Figure 8a A sectional view of section AA; - Figure 9b It is along Figure 8b The sectional view of section BB.
[0014] Referring to the accompanying drawings, the motor assembly 1 according to the present invention is indicated by the numeral 1.
[0015] Conversely, the number 900 indicates a system that performs operations on the roll 500. The system 900 includes the motor assembly 1.
[0016] The system 900 also includes: an unwinding assembly 910 adapted to accommodate a roll of the roll 500 to be processed, an operating assembly 920 adapted to perform operations on the roll 500, a motor assembly 1 adapted to pull the roll 500, and a rewinding assembly 990 adapted to rewind the rolled roll 500 after rewinding.
[0017] The unwind assembly 910 is the entry point for system 900.
[0018] The roll of the material to be processed 500 is actually housed in the unwinding assembly 910. In other words, the unwinding assembly 910 is adapted to allow the unwinding of the roll of material 500 housed therein.
[0019] The rewind assembly 990 is the output of system 900.
[0020] In practice, the spool of the processed roll 500 is housed on the rewinding assembly 990. Specifically, the rewinding assembly 990 winds the processed roll 500 to form a spool of the processed roll.
[0021] Specifically, the unwinding action of the roll housed in the unwinding assembly 910 can be performed by the motor assembly 1, which performs the action of pulling the roll 500.
[0022] Preferably, the traction actions performed by the motor assembly 1 are alternating. More preferably, the traction actions performed by the motor assembly 1 are performed at alternating speeds. That is, the traction actions performed by the motor assembly 1 do not have the same continuity in time.
[0023] In other words, the traction action experienced by the roll material 500 changes over time.
[0024] According to a preferred embodiment, system 900 is a labeling system. Therefore, preferably, the operating assembly 920 performs the labeling operation; the roll 500 housed on the unwinding assembly 910 includes the roll to be processed (i.e., the roll with a label), while the roll on the rewinding assembly 990 includes the processed roll (i.e., the roll without a label).
[0025] Preferably, the operating assembly 920 decouples the tag from and places it on the product, or transfers it to another assembly on which it is placed.
[0026] In addition to certain specific features of system 900 as described below, it should be noted that system 900 is adapted to include a plurality of free or guide wheels and / or rollers, which are adapted to identify a specific track / path of roll 500. The number and / or position and / or shape of the components in no way limit the subject matter of the invention.
[0027] According to a preferred embodiment, the motor assembly 1 is arranged after the operating assembly 920. This means that the motor assembly 1 performs the action of traction of the roll 500, which has previously been processed within the operating assembly 920, i.e., has undergone processing. This means that the motor assembly 1 operates on the processed roll 500.
[0028] According to the present invention, the motor assembly 1, which includes a control group 2 and a support group 3, is adapted to perform the action of traction of the traction coil 500.
[0029] The roll 500 actually slides between the control group 2 and the support group 3, and bears the traction action between the two.
[0030] The control group 2 includes a control roller 20 that extends along the control axis XX direction.
[0031] In addition, control group 2 includes control driver 25, which is operatively connected to control roller 20 to drive it to rotate about control axis XX.
[0032] The control driver 25 is preferably an electric motor.
[0033] The motor is preferably a brushless type or a stepper type.
[0034] In other words, the rotation of the control roller 20 corresponds to a traction of 500 on the roll.
[0035] The support group 3 includes a first support roller 4 and a second support roller 5, wherein the first support roller 4 extends along a first support axis Y'-Y' direction that is substantially parallel to the control axis XX, and the second support roller 5 extends along a second support axis Y''-Y'' direction that is substantially parallel to the control axis XX.
[0036] In other words, support group 3 includes roller pairs.
[0037] Preferably, the first support roller 4 idles.
[0038] Preferably, the second support roller 5 is idled.
[0039] According to a preferred embodiment, the first support roller 4 and the second support roller 5 both rotate freely relative to their respective first support shaft Y'-Y' and second support shaft Y''-Y''.
[0040] According to the present invention, the support group 3 can be configured in an open configuration and an operating configuration, wherein in the open configuration it is spaced apart from the control group 2; and in the operating configuration it is engaged with the control group 2.
[0041] According to the present invention, in the control configuration, the first support roller 4 and the second support roller 5 engage with the control roller 20 in two regions located on opposite semicircles.
[0042] In other words, in the control configuration, the first support roller 4 and the second support roller 5 engage with the control roller 20 by performing two opposing engagement actions.
[0043] In other words, the first support roller 4 and the second support roller 5 engage with the control roller 20 by performing a clamping action.
[0044] According to a preferred embodiment, the support group 3 includes a support axis YY that is substantially parallel to the control axis XX.
[0045] According to a preferred embodiment, the support assembly 3 can rotate about the support axis YY.
[0046] According to a preferred embodiment, the motor assembly 1 includes an imaginary plane I, on which the control shaft XX and the support shaft YY are both located.
[0047] According to a preferred embodiment, the hypothetical plane I is basically horizontally arranged, preferably with an inclination angle α of less than 30 degrees, less than 30 degrees, more preferably less than 25 degrees, and more preferably less than 10 degrees relative to the horizontal position.
[0048] According to a preferred embodiment, in the working configuration, the first support shaft Y'-Y' is arranged below the imaginary plane I, while the second support shaft Y''-Y'' is arranged above the imaginary plane I. In other words, according to the preferred embodiment, the first support shaft Y'-Y' is arranged such that it engages with the lower semicircle. In other words, according to the preferred embodiment, the second support shaft Y''-Y'' is arranged such that it engages with the upper semicircle.
[0049] According to a preferred embodiment, the control roller 20 has a smooth outer surface 200.
[0050] According to a preferred embodiment, the outer surface 200 is made of an elastic material, such as preferably rubber.
[0051] According to a preferred embodiment, the first support roller 4 includes a surface-formed support surface 500.
[0052] Preferably, the first support surface 500 is wavy along the first support axis Y'-Y' direction. Preferably, the first support surface 500 includes a plurality of axially stacked annular elements.
[0053] According to a preferred embodiment, the second support roller 5 includes a surface-formed support surface 600.
[0054] Preferably, the second support surface 600 is wavy along the second support axis Y''-Y'' direction. Preferably, the second support surface 600 includes a plurality of axially stacked annular elements.
[0055] Preferably, both the first support surface 500 and the second support surface 600 are surface-formed structures.
[0056] According to a preferred embodiment, the first support roller 4 has a first support surface 500 that is harder than the outer surface 200, wherein, in the working configuration, the outer surface 200 of the control roller 20 abuts against the shape of the support surface 500.
[0057] According to a preferred embodiment, the second support roller 5 has a second support surface 600 that is harder than the outer surface 200, wherein, in the working configuration, the outer surface 200 of the control roller 20 abuts against the shape of the support surface 500.
[0058] According to a preferred embodiment, the control roller 20 has a control radius R2.
[0059] According to a preferred embodiment, the first support roller 4 has a first support radius R4.
[0060] According to a preferred embodiment, the support roller 5 has a second support radius R5.
[0061] Preferably, the control radius R2 is greater than the first support radius R4 and the second support radius R5.
[0062] Preferably, the first support radius R4 is greater than the second support radius R5.
[0063] According to a preferred embodiment, the distance between the first support axis Y'-Y' and the control axis XX is less than the sum of the control radius R2 and the first support radius R4.
[0064] According to a preferred embodiment, the distance between the second support axis Y''-Y'' and the control axis XX is less than the sum of the control radius R2 and the second support radius R5.
[0065] According to a preferred embodiment, the support assembly 3 includes a base 30, and a first support roller 4 and a second support roller 5 are hinged to the base.
[0066] Preferably, the base 30 is movable between an open configuration and a working configuration.
[0067] According to a preferred embodiment, the base 30 is hinged to the support shaft YY so that it can rotate between an open configuration and a working configuration.
[0068] According to a preferred embodiment, in the open configuration, the support group 3 arranges the first support roller 4 and the second support roller 5 in a manner that is away from the control roller 20.
[0069] By rotating the support assembly 3, starting from the open configuration, the second support roller 5 engages the control roller 20. Through forced rotation, the control roller 20 is partially compressed, and the second support roller 5 passes over the control roller 20 and continues rotating until the first support roller 4 engages the control roller 20. Specifically, the position of the first support roller 4 prevents further rotation. As previously described, in the working configuration, both the first support roller 4 and the second support roller 5 clamp and partially alter the surface of the control roller 20.
[0070] According to a preferred embodiment, the motor assembly 1 is also suitable for driving the movement of the rewinding assembly 990.
[0071] Preferably, the motor assembly 1 can be connected to the rewinding assembly 990.
[0072] According to a preferred embodiment, the control driver 25 controls the movement of both the control roller 20 and the rewinding assembly 990.
[0073] Preferably, the control driver 25 further includes a pulley 255.
[0074] Preferably, the system 900 includes a drive member located between the pulley 255 and the rewinding assembly 990.
[0075] Preferably, the driving component is a belt, chain, or toothed belt.
[0076] According to a preferred embodiment, the support group 3 can be arranged in a first position on the left side of the control group 2; or it can be arranged in a second position on the right side of the control group 2.
[0077] Innovatively, this motor assembly fully achieves its intended objectives in overcoming typical problems of the prior art. Advantageously, the system including said motor assembly also fully achieves its intended objectives in overcoming typical problems of the prior art.
[0078] Advantageously, in practice, this motor assembly is suitable for managing the movement of traction coils.
[0079] Advantageously, the motor assembly is suitable for achieving high adhesion of the control roller to the roll material. Advantageously, the roll material extends over the control roller from the contact area between the first support roller and the control roller to the contact area between the second support roller and the control roller.
[0080] Advantageously, this motor assembly is suitable for achieving extremely high speeds.
[0081] Advantageously, the motor assembly prevents the roll material from slipping.
[0082] Advantageously, the motor assembly does not include a resilient thrust element in the support assembly, which is susceptible to wear over time and thus loses its resilient thrust function.
[0083] Advantageously, the motor assembly can be configured for both working and open modes using a simple and intuitive operating structure.
[0084] Advantageously, the motor assembly can be configured in a simple, intuitive, and accident-proof manner for both working and open configurations.
[0085] Advantageously, the maintenance and / or assembly and / or disassembly of the motor assembly are extremely simplified.
[0086] Advantageously, the motor assembly is highly flexible and can easily adapt to rolls of different sizes.
[0087] Advantageously, the aforementioned specific advantages for the motor assembly also exist in this system. Advantageously, these advantages are even more pronounced in the labeling system.
[0088] Advantageously, the roll material moved by the motor assembly is adapted to be wound into the rewinding assembly in a simplified manner. Advantageously, the roll material moved by the motor assembly can effectively achieve self-alignment and avoid forming a tapered roll on the rewinding assembly.
[0089] Obviously, those skilled in the art can modify the above invention to meet specific needs, and all such modifications fall within the scope of protection defined by the following claims.
Claims
1. A motor assembly (1) for performing operations on a roll (500) of material (900), the system (900) comprising: An unwinding assembly (910) is adapted to accommodate a reel of coil (500); an operating assembly (920) is adapted to perform operations on the coil (500); and a rewinding assembly (990) is used to wind the processed coil (500), wherein the motor assembly (1) is adapted to perform the action of traction of the coil (500), including: i) Control group (2), including control roller (20) extending along control axis (XX) and control driver (25) operatively connected to the control roller (20) to drive the control roller (20) to rotate about the control axis (XX); ii) Support group (3), configured in an open configuration and an operational configuration, wherein in the open configuration the support group (3) is spaced apart from the control group (2), and in the operational configuration the support group (3) is engaged with the control group (2), wherein the support group (3) comprises: - A first support roller (4) extends along a first support axis (Y'-Y') that is substantially parallel to the control axis (XX). - A second support roller (5) extends along a second support axis (Y''-Y'') that is substantially parallel to the control axis (XX); In the controlled configuration, the first support roller (4) and the second support roller (5) engage with the control roller (20) in two regions located in opposite semicircles.
2. The motor assembly (1) according to claim 1, wherein, The support assembly (3) includes a support shaft (YY) rotatable about it, wherein the support shaft (YY) is substantially parallel to the control shaft (XX), wherein the motor assembly (1) includes an imaginary plane (I), and both the control shaft (XX) and the support shaft (YY) are located on the imaginary plane (I), wherein, in the working configuration, the first support shaft (Y'-Y') is located below the imaginary plane (I), and the second support shaft (Y''-Y'') is located above the imaginary plane (I).
3. The motor assembly (1) according to claim 2, wherein, The imaginary plane (I) is basically horizontal, preferably tilted at an angle (α) relative to the horizontal position, the angle (α) being less than 30 degrees, preferably less than 25 degrees, and preferably less than 10 degrees.
4. The motor assembly (1) according to any one of the preceding claims, wherein, The control roller (20) has a smooth outer surface (200) made of an elastic material, for example, preferably rubber.
5. The motor assembly (1) according to any one of the preceding claims, wherein, The first support roller (4) and / or the second support roller (5) include surface-formed support surfaces (500; 600).
6. The motor assembly (1) according to claims 4 and 5, wherein, The first support roller (4) and / or the second support roller (5) have support surfaces (500, 600) that are harder than the outer surface (200), wherein in the working configuration, the outer surface (200) of the control roller (20) abuts against the shape of the support surfaces (500, 600).
7. The motor assembly (1) according to any one of the preceding claims, wherein, The first support roller (4) and the second support roller (5) idle relative to the first support shaft (Y'-Y') and the second support shaft (Y''-Y'').
8. The motor assembly (1) according to any one of the preceding claims, wherein, The control roller (20) has a control radius (R2), the first support roller (4) has a first support radius (R4), and the second support roller (5) has a second support radius (R5), wherein the control radius (R2) is greater than the first support radius (R4) and the second support radius (R5).
9. The motor assembly (1) according to claim 8, wherein, The first support radius (R4) is greater than the second support radius (R5).
10. The motor assembly (1) according to any one of the preceding claims, wherein, The support assembly (3) includes a base (30), to which the first support roller (4) and the second support roller (5) are hinged, wherein the support assembly (3) is configured to be in an open or working configuration by moving the base (30).
11. The motor assembly (1) according to claim 10 in conjunction with claim 2, wherein, The base (30) is hinged to the support shaft (YY) to rotate between the open configuration and the working configuration.
12. A system (900) for performing operations on a roll (500), comprising: The unwinding assembly (910) is adapted to receive a reel of a roll to be processed (500); the operating assembly (920) is adapted to perform operations on the roll (500); the motor assembly (1) according to any one of the preceding claims is adapted to perform the action of traction of the roll (500); and the rewinding assembly (990) is adapted to rewind the processed roll (500).
13. The system (900) according to claim 12, wherein, The rewinding assembly (990) is operatively connected to the motor assembly (1), specifically to the control driver (25), preferably via a drive component, such as a belt, chain, or toothed belt, to simultaneously control the movement of the control roller (20) and the rewinding assembly (990).
14. The system (900) according to claim 12 or 13, wherein, The operating assembly (920) performs a labeling operation, wherein the roll material (500) housed on the unwinding assembly (910) includes labeled roll material, while the roll material on the rewinding assembly (990) includes unlabeled roll material.