Double-cutter driving mechanism of slitting equipment

Abstract

The utility model relates to a double-blade driving mechanism of slitting equipment. The double-blade driving mechanism comprises a rotary driving mechanism, a telescopic driving mechanism and an output end, the rotation driving mechanism drives the output end to rotate, and the telescopic driving mechanism drives the output end to stretch out and draw back. The output end comprises a connector female head; a connector male head corresponding to the connector female head is arranged at one end of the circular knife / straight knife, and power transmission is achieved when the connector female head makes contact with the connector male head. According to the double-cutter driving mechanism of the slitting equipment, the rotation driving mechanism and the telescopic driving mechanism are combined, transmission and separation of power are achieved, a foundation is provided for replacement of a circular cutter and a straight cutter, and final power output is achieved in cooperation with the connector male head arranged on the cutter and the connector female head arranged on the driving mechanism. The double-cutter driving mechanism has the advantages of being compatible with a circular cutter and a straight cutter at the same time, and the workload during cutter replacement is reduced.

Description

Technical Field

[0001] The utility model relates to a driving mechanism, in particular to a double-knife driving mechanism of a slitting device. Background Art

[0002] Common types of knives for slitting machines include circular knives and straight knives. When slitting, the circular knife needs to be driven by a motor to rotate; the straight knife requires a drive device to swing it to a specific angle. This angle requires that the cutting angle of the straight knife does not change except for a slight swing margin during operation.

[0003] Based on the above working principle, the circular knife and straight knife of the current slitting equipment each have a set of independent drivers. When changing the knife type, the driver needs to be replaced and adjusted. Since there are many parts that need to be adjusted, it takes a long time and effort to change the knife type of the current slitting equipment. Utility Model Content

[0004] In view of the above situation, it is necessary to provide a double-blade drive mechanism of a slitting device that solves at least one of the above problems, including a rotating drive mechanism and a telescopic drive mechanism and an output end;

[0005] The rotation drive mechanism drives the output end to rotate, and the telescopic drive mechanism drives the output end to telescope;

[0006] The output end includes a female connector; a male connector corresponding to the female connector is provided at one end of the round knife / straight knife, and power transmission is achieved when the female connector contacts the male connector.

[0007] As a further solution of the utility model: the output end comprises a housing, a transmission shaft disposed in the housing, and the transmission shaft is assembled to the housing through a bushing and a first bearing assembly;

[0008] The transmission shaft slides axially in the shaft sleeve, and the transmission shaft rotates with the shaft sleeve;

[0009] A synchronous wheel is arranged outside the shaft sleeve, and the rotation driving mechanism drives the shaft sleeve to rotate through the synchronous wheel and the synchronous belt;

[0010] The output end also includes a telescopic sleeve arranged at the end of the transmission shaft, the telescopic sleeve is assembled with the transmission shaft through a second bearing group, and the telescopic sleeve is also connected to the telescopic driving mechanism.

[0011] As a further solution of the utility model: the second bearing group includes a rolling bearing and a thrust bearing;

[0012] A step is respectively arranged at a position on the transmission shaft and the telescopic sleeve corresponding to the thrust bearing, and the two steps clamp the thrust bearing therebetween.

[0013] As a further solution of the utility model: the rolling bearing is arranged at the end position of the transmission shaft, and a fixing piece is provided on the end of the transmission shaft close to the rolling bearing, and the fixing piece and the step limit the axial movement of the rolling bearing.

[0014] As a further solution of the utility model: the female connector has a conical notch at one end facing the male connector; correspondingly, the shape of the male connector matches the conical notch, and when the movable end of the telescopic drive mechanism is extended, the female connector extends and presses the male connector.

[0015] As a further solution of the utility model: the synchronous wheel is provided with an induction disk, and the induction disk rotates together with the synchronous wheel;

[0016] The induction disk is provided with a notch, and when the sensor detects the notch, the rotation drive mechanism stops working.

[0017] The double-knife drive mechanism of the above-mentioned slitting equipment adopts a combination of a rotary drive mechanism and a telescopic drive mechanism, realizes the transmission and separation of power, provides a basis for the replacement of round knives and straight knives, and cooperates with the male connector set on the knife and the female connector on the drive mechanism to achieve the final power output. The double-knife drive mechanism provided by the utility model has the advantage of being compatible with both round knives and straight knives, reducing the workload when replacing knives. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the installation position of an embodiment of the utility model;

[0019] Figure 2 This is a schematic diagram of the installation of a circular knife in an embodiment of the utility model;

[0020] Figure 3 This is a schematic diagram of the installation of a straight knife in an embodiment of the utility model;

[0021] Figure 4 It is a structural schematic diagram of an embodiment of the utility model;

[0022] Figure 5 It is a cross-sectional view of an embodiment of the utility model;

[0023] Figure 6 yes Figure 5 The enlarged view of point B in the middle;

[0024] Figure 7It is a schematic diagram of the installation of the male connector of the embodiment of the utility model;

[0025] Figure 8 yes Figure 7 Enlarged view of point A in the middle. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0027] In the description of the present invention, unless otherwise specified, "multiple" means two or more; the terms "center", "longitudinal", "lateral", "up", "down", "left", "right", "inside", "outside", "front end", "rear end", "head", "tail", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0028] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0029] A double-blade drive mechanism of a slitting device includes a rotation drive mechanism 100, a telescopic drive mechanism 200 and an output end 300; Figure 1-Figure 3 As shown, the double-blade driving mechanism provided in this embodiment is arranged on the side of the frame, and the output end 300 penetrates the vertical plate of the frame.

[0030] The rotation drive mechanism 100 drives the output end 300 to rotate, and the telescopic drive mechanism 200 drives the output end 300 to telescope; that is, the output end 300 can perform rotation or telescopic actions simultaneously or separately.

[0031] like Figure 2-Figure 3As shown, the output end 300 includes a female connector 400; at one end of the round knife / straight knife, a male connector 500 corresponding to the female connector 400 is provided, and power transmission is achieved when the female connector 400 contacts the male connector 500. In this embodiment, the connector can be two gears that can mesh with each other, such as a combination of a gear and an internal gear, or two rubber parts with matching shapes, which use friction to achieve power transmission.

[0032] Furthermore, if Figure 4-Figure 5 As shown, the output end 300 includes a housing 310 and a transmission shaft 320 disposed in the housing 310 . The transmission shaft 320 is assembled to the housing 310 through a shaft sleeve 330 and a first bearing assembly 340 .

[0033] like Figure 5 As shown, the transmission shaft 320 slides axially in the sleeve 330, and the transmission shaft 320 rotates with the sleeve 330; specifically, the sleeve 330 and the transmission shaft 320 are assembled by a key and a keyway, and a keyway with a length greater than the key is set on the transmission shaft 320 or the sleeve 330, so that the key can slide in the keyway to achieve telescopic action.

[0034] The shaft sleeve 330 is fixed with a synchronous wheel 350, and the rotation drive mechanism 100 drives the shaft sleeve 330 to rotate through the synchronous wheel 350 and the synchronous belt 360; through the key and keyway, the shaft sleeve 330 drives the transmission shaft 320 to rotate. That is, the combination of the shaft sleeve 330 and the transmission shaft 320 and the key and keyway between the two is the basis for realizing telescopic and rotation.

[0035] The output end 300 further includes a telescopic sleeve 370 disposed at the end of the transmission shaft 320. The telescopic sleeve 370 is assembled with the transmission shaft 320 through a second bearing group 380, and the telescopic sleeve 370 is also connected to the telescopic drive mechanism 200. The telescopic sleeve 370 is a connector for connecting the transmission shaft 320 and the telescopic drive mechanism 200. The telescopic drive mechanism 200 is preferably a cylinder, and the movement of its piston drives the transmission shaft 320 as a whole to realize the telescopic action through the telescopic sleeve 370.

[0036] Furthermore, the second bearing group 380 includes a rolling bearing 381 and a thrust bearing 382; a step 321 / 322 is respectively provided at the position corresponding to the thrust bearing 382 on the transmission shaft 320 and the telescopic sleeve 370, and the two steps clamp the thrust bearing 382 therebetween. The second bearing group 380 composed of the rolling bearing 381 and the thrust bearing 382 has a good axial bearing capacity, providing a basis for the compression of the telescopic drive mechanism 200 after extension.

[0037] Furthermore, the rolling bearing 381 is arranged at the end of the transmission shaft 320, and a fixing member 323 is arranged on the end of the transmission shaft 320 close to the rolling bearing 381, and the fixing member 323 and the step 321 limit the axial movement of the rolling bearing 381. Together with the thrust bearing 382, ​​better stability is provided to ensure the accuracy of the film material after slitting.

[0038] Furthermore, if Figure 4-Figure 8 As shown, in this embodiment, the connector is preferably a combination of two rubber parts. Specifically, the connector female head 400 has a conical notch at one end facing the connector male head 500; correspondingly, the shape of the connector male head 500 matches the conical notch, and when the movable end of the telescopic drive mechanism 200 is extended, the connector female head 400 extends and presses the connector male head 500. When the connector female head 400 and the connector male head 500 are pressed tightly, power transmission is achieved based on the large static friction coefficient between the two. In addition to rubber materials, the connector can also use other materials with a high static friction coefficient.

[0039] When the connector uses a material with a high static friction coefficient such as rubber material, the distance between the connector female head 400 and the connector male head 500 should be slightly smaller than the stroke of the piston of the telescopic drive mechanism 200, so that the connector female head 400 and the connector male head 500 are pressed against each other after the telescopic drive mechanism 200 drives the transmission shaft 320 to extend.

[0040] Furthermore, the synchronous wheel 350 is provided with an induction disc 600, and the induction disc 600 rotates with the synchronous wheel 350; the induction disc 600 is provided with a notch 610, and when the sensor 700 detects the notch 610, the rotary drive mechanism 100 stops working. The sensor 700 may be a non-contact photoelectric sensor. It should be noted that the straight knife is generally fixed at a certain angle when slitting the film material, so when the straight knife is used, the rotary drive mechanism 100 only rotates to the corresponding position and stops to ensure the angle of the straight knife. Therefore, the above-mentioned induction disc 600 is used to achieve angle control, that is, the position where the motor stops working. Correspondingly, the use of an absolute value servo motor can also achieve the same technical effect, but the cost is higher than the combination of the induction disc 600 and the ordinary motor. Theoretically, the combination of the induction disc 600 and the absolute value servo motor can bring a more precise angle control effect.

[0041] The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technician familiar with the profession can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A double-knife drive mechanism for a slitting device, characterized in that: It comprises a rotation drive mechanism (100), a telescopic drive mechanism (200) and an output end (300); The rotation drive mechanism (100) drives the output end (300) to rotate, and the telescopic drive mechanism (200) drives the output end (300) to telescope; The output end (300) comprises a female connector (400); a male connector (500) corresponding to the female connector (400) is provided at one end of the round knife / straight knife, and power transmission is achieved when the female connector (400) is in contact with the male connector (500).

2. The double-blade driving mechanism according to claim 1, characterized in that: The output end (300) comprises a housing (310) and a transmission shaft (320) disposed in the housing (310); the transmission shaft (320) is assembled to the housing (310) via a shaft sleeve (330) and a first bearing group (340); The transmission shaft (320) slides axially in the shaft sleeve (330), and the transmission shaft (320) rotates along with the shaft sleeve (330); A synchronous wheel (350) is disposed outside the shaft sleeve (330), and the rotation drive mechanism (100) drives the shaft sleeve (330) to rotate via the synchronous wheel (350) and the synchronous belt (360); The output end (300) further comprises a telescopic shaft sleeve (370) arranged at the end of the transmission shaft (320); the telescopic shaft sleeve (370) is assembled with the transmission shaft (320) via a second bearing group (380); and the telescopic shaft sleeve (370) is also connected to the telescopic driving mechanism (200).

3. The double-blade driving mechanism according to claim 2, characterized in that: The second bearing group (380) includes a rolling bearing (381) and a thrust bearing (382); A step (321 / 322) is respectively provided at a position on the transmission shaft (320) and the telescopic sleeve (370) corresponding to the thrust bearing (382), and the two steps clamp the thrust bearing (382) therebetween.

4. The double-blade driving mechanism according to claim 3, characterized in that: The rolling bearing (381) is arranged at the end position of the transmission shaft (320), and a fixing member (323) is arranged on the end of the transmission shaft (320) close to the rolling bearing (381), and the fixing member (323) and the step (321) limit the axial movement of the rolling bearing (381).

5. The double-blade driving mechanism according to claim 1, characterized in that: The female connector (400) has a conical notch at one end facing the male connector (500); correspondingly, the shape of the male connector (500) matches the conical notch, and when the movable end of the telescopic drive mechanism (200) is extended, the female connector (400) extends and presses the male connector (500).

6. The double-blade driving mechanism according to claim 2, characterized in that: An induction disc (600) is disposed on the synchronous wheel (350), and the induction disc (600) rotates together with the synchronous wheel (350); The induction disk (600) is provided with a notch (610), and when the sensor (700) detects the notch (610), the rotation drive mechanism (100) stops working.

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