An electric rewinding machine and its circuit connection structure.

Abstract

This invention discloses an electric rewinding machine and its circuit connection structure, which includes a stepper motor, a transmission unit, and a rewinding unit. The rewinding unit is driven electrically, which improves work efficiency and reduces manual labor. It also includes a stepper pulse generator and a driver, which can control the rewinding unit within a wide speed range. Furthermore, it includes an interlock circuit, which can simultaneously drive and control two rewinding machines.

Description

Technical Field

[0001] This invention relates to the field of rewinding machine technology, and particularly to an electric rewinding machine and its circuit connection structure. Background Technology

[0002] The die-cutting industry belongs to the precision parts processing industry. During the processing and manufacturing process, products need to be rolled up in roll form. During the rolling process, the operators will check the appearance of the products, reject the defective ones, and replace the qualified ones in the empty spaces.

[0003] The current method involves using a hand-cranked rewinding machine for winding. During operation, the operator needs to crank with one hand and hold the material belt with the other, while visually inspecting the products on the belt. This method requires the operator to use both hands, is strenuous, and easily leads to fatigue. Furthermore, when moving from a relatively high speed to a stop, or when a defective product is found, the inertia of the material tray prevents it from stopping at the required position in a timely or accurate manner. The operator must then use both hands to pull the material belt back to the corresponding position for inspection, rejection, and replenishment, which is inconvenient and inefficient. Summary of the Invention

[0004] The purpose of this invention is to provide an electric rewinding machine and its circuit connection structure, which drives the rewinding unit to rotate via a stepper motor, thereby improving work efficiency and reducing manual labor.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] An electric rewinding machine includes a stepper motor, a transmission unit, and a rewinding unit;

[0007] The reel unit includes a main shaft and a first baffle. The first baffle includes a cylindrical part with a shaft hole, and one end of the main shaft is inserted into the shaft hole.

[0008] The transmission unit includes a first rotating shaft and a second rotating shaft, which are drivenly connected.

[0009] The first rotating shaft is connected to the output end of the stepper motor, and the output end of the second rotating shaft is inserted into the shaft hole.

[0010] Thus, the stepper motor drives the transmission unit to rotate, and the transmission unit then drives the roller unit to rotate, thereby realizing the electric drive of the roller unit, improving work efficiency, reducing manual labor, and reducing the labor intensity of operators.

[0011] In some embodiments, the rewinding machine further includes a stepper pulse generator and a driver, wherein the output of the stepper pulse generator is electrically connected to the input of the driver, and the output of the driver is electrically connected to the input of the stepper motor.

[0012] Therefore, the stepper pulse generator can emit pulse signals, and the driver drives the stepper motor to rotate according to the pulse signals, which helps to improve the control of the spindle. Furthermore, the cooperation between the stepper pulse generator and the driver can drive the spindle within a wide speed range. For example, even at very high speeds, it can accurately respond to the operator's stop command and stop accurately at the required position, thereby improving the functionality and reliability of the rewinding machine.

[0013] In some embodiments, the transmission unit further includes a first bevel gear and a second bevel gear, the first bevel gear and the second bevel gear meshing, the first bevel gear being linked to a first rotating shaft, and the second bevel gear being linked to a second rotating shaft.

[0014] In some embodiments, the reel unit further includes a second baffle connected to the end of the main shaft away from the first baffle;

[0015] A handle is attached to the edge of the second baffle.

[0016] In some implementations, the cylindrical portion of the first baffle is connected to the bracket via a bearing.

[0017] In some embodiments, the rewinding machine further includes a damping unit fixedly connected to the support, with the end face of the damping unit abutting against the first baffle.

[0018] A circuit connection structure for a rewinding machine includes a stepper motor, a rewinding unit, a stepper pulse generator, and a driver;

[0019] The output of the stepper motor is connected to the drive unit of the reel;

[0020] The output terminal of the stepper pulse generator is electrically connected to the input terminal of the driver, and the output terminal of the driver is electrically connected to the input terminal of the stepper motor.

[0021] The stepping pulse generator is connected to a speed control potentiometer;

[0022] The stepping pulse generator is connected to a forward and reverse control switch.

[0023] Therefore, the stepper motor drives the reel unit to rotate, improving work efficiency and reducing manual labor. The stepper pulse generator can emit pulse signals, and the driver drives the stepper motor to rotate according to the pulse signals, thereby improving the control of the spindle. Furthermore, the cooperation between the stepper pulse generator and the driver can drive the spindle within a wide speed range. For example, even at very high speeds, it can accurately respond to the operator's stop command and stop accurately at the required position, improving the functionality and reliability of the rewinding machine.

[0024] In some implementations, the step pulse generator is connected to a foot switch;

[0025] Both the stepping pulse generator and the driver are electrically connected to the switching power supply.

[0026] In some embodiments, the circuit connection structure further includes an interlock circuit that can simultaneously drive both of the rewinding machines.

[0027] The beneficial effects of this invention are: the electric rewinding machine drives the rewinding unit to rotate via a stepper motor, which improves work efficiency and reduces manual labor;

[0028] Furthermore, the combination of the stepping pulse generator and the driver can drive the spindle within a wide speed range, further improving spindle control and increasing work efficiency;

[0029] Furthermore, the interlock circuit enables simultaneous drive control of two rewinding machines. Attached Figure Description

[0030] Figure 1 This is a structural diagram of an electric rewinding machine according to the present invention;

[0031] Figure 2 This is a cross-sectional view of an electric rewinding machine according to the present invention;

[0032] Figure 3 This is a circuit connection diagram of a rewinding machine according to the present invention;

[0033] Figure 4 This is a structural diagram of the electrical box of the present invention;

[0034] Figure 5 The circuit diagram of the switching power supply of the present invention is shown below.

[0035] Figure 6 This is a diagram showing the arrangement and connection of the two rewinding machines of the present invention;

[0036] Figure 7 This is a circuit connection diagram of the first embodiment of the interlocking circuit of the present invention;

[0037] Figure 8 This is a circuit connection diagram of the isolation relay of the present invention;

[0038] Figure 9 This is a schematic diagram of the circuit connection of the plug-in terminal of the present invention;

[0039] Figure 10 This is a circuit connection diagram of a second embodiment of the interlocking circuit of the present invention;

[0040] Figure 11 This is a schematic diagram of the circuit connection of the plug-in terminal of the present invention;

[0041] Wherein: 1-Stepper motor; 2-Driver; 3-Stepper pulse generator; 31-Foot switch; 32-Speed ​​control potentiometer; 33-Forward and reverse control switch; 10-Switching power supply; 4-Transmission unit; 41-First shaft; 42-First bevel gear; 43-Second shaft; 44-Second bevel gear; 5-Roller unit; 51-Main shaft; 52-First baffle; 521-Cylinder; 522-Shaft hole; 53-Second baffle; 54-Handle; 6-Bracket; 7-Electrical box; 8-Damping unit; 91-First plug-in terminal; 92-Second plug-in terminal; 93-First isolation relay; 94-Second isolation relay; 95-First self-locking button; 96-Second self-locking button. Detailed Implementation

[0042] The present invention will now be described in further detail with reference to the accompanying drawings.

[0043] refer to Figure 1 and Figure 2 An electric rewinding machine includes a stepper motor 1, a transmission unit 4, and a rewinding unit 5;

[0044] The scroll unit 5 includes a main shaft 51 and a first baffle 52. The first baffle 52 includes a cylindrical portion 521, which is provided with a shaft hole 522. One end of the main shaft 51 is inserted into the shaft hole 522.

[0045] The transmission unit 4 includes a first rotating shaft 41 and a second rotating shaft 43, which are drivenly connected.

[0046] The first rotating shaft 41 is connected to the output end of the stepper motor 1, and the output end of the second rotating shaft 43 is inserted into the shaft hole 522.

[0047] Stepper motor 1 drives transmission unit 4 to rotate, and transmission unit 4 in turn drives roller unit 5 to rotate, thereby realizing electric drive of roller unit 5, improving work efficiency, reducing manual labor, and reducing the labor intensity of operators.

[0048] One end of the main shaft 51 and the output end of the second rotating shaft 43 are both inserted into the shaft hole 522 to achieve linkage connection. The main shaft 51 and the second rotating shaft 43 can be matched with the shaft hole 522 through non-circular cross sections. That is, the ends of the main shaft 51 and the second rotating shaft 43 have non-circular cross sections, and the corresponding shaft hole 522 has a non-circular cross section that matches them. The cylindrical part 521 can be provided with a corresponding radial screw hole, and a radial screw is connected to the radial screw hole. The end face of the corresponding radial screw abuts against the corresponding second rotating shaft 43 or main shaft 51, thereby achieving limit.

[0049] To further explain, the rewinding machine also includes a stepper pulse generator 3 and a driver 2. The output terminal of the stepper pulse generator 3 is electrically connected to the input terminal of the driver 2, and the output terminal of the driver 2 is electrically connected to the input terminal of the stepper motor 1.

[0050] The stepper pulse generator 3 can emit pulse signals, and the driver 2 drives the stepper motor 1 to rotate according to these pulse signals, thereby improving the control of the spindle 51. Furthermore, the cooperation between the stepper pulse generator 3 and the driver 2 allows for the drive of the spindle 51 within a wide speed range. For example, even at very high speeds, it can accurately respond to the operator's stop command and stop precisely at the required position, improving the functionality and reliability of the rewinding machine. The stepper pulse generator 3 and the driver 2 can be housed inside the electrical box 7.

[0051] To further explain, the transmission unit 4 also includes a first bevel gear 42 and a second bevel gear 44, which mesh with each other. The first bevel gear 42 is linked with the first rotating shaft 41, and the second bevel gear 44 is linked with the second rotating shaft 43.

[0052] The first bevel gear 42 is connected to the second gear at a 90-degree angle, which changes the transmission direction, saves space, and makes the transmission unit 4 and the rewinding machine more compact.

[0053] To further explain, the scroll unit 5 also includes a second baffle 53, which is connected to the end of the main shaft 51 away from the first baffle 52;

[0054] A handle 54 is connected to the edge of the second baffle 53. The handle 54 serves as another power source, allowing manual driving and fine-tuning of the spindle 51, complementing the electric drive method and enhancing functionality.

[0055] To further explain, the cylindrical portion 521 of the first baffle 52 is connected to the bracket 6 via a bearing, thereby enabling the rotatable connection of the roller unit 5 to the bracket 6.

[0056] To further explain, the unwinding machine also includes a damping unit 8, which is fixedly connected to the bracket 6. The end face of the damping unit 8 abuts against the first baffle 52. The damping unit 8 is adjustablely connected to the bracket 6 via an adjusting screw. The damping unit 8 may be equipped with a damping plate, which abuts against the first baffle 52 to form a certain damping force.

[0057] refer to Figures 3 to 5 A circuit connection structure for a rewinding machine includes a stepper motor 1, a rewinding unit 5, a stepper pulse generator 3, and a driver 2;

[0058] The output end of stepper motor 1 is connected to the drive of reel unit 5;

[0059] The output terminal of the stepper pulse generator 3 is electrically connected to the input terminal of the driver 2, and the output terminal of the driver 2 is electrically connected to the input terminal of the stepper motor 1.

[0060] The stepper pulse generator 3 is connected to a speed control potentiometer 32, i.e., TRI, which can adjust the speed of the stepper motor 1.

[0061] The stepper pulse generator 3 is connected to the forward and reverse control switch 33, i.e., K2, which can adjust the direction of the stepper motor 1, so that the stepper motor 1 can rotate in the forward and reverse directions.

[0062] The stepper motor 1 drives the reel unit 5 to rotate, improving work efficiency and reducing manual labor. The stepper pulse generator 3 can emit pulse signals, and the driver 2 drives the stepper motor 1 to rotate according to these pulse signals, thereby improving the control of the main shaft 51. Furthermore, the cooperation between the stepper pulse generator 3 and the driver 2 can drive the main shaft 51 within a wide speed range. For example, even at very high speeds, it can accurately respond to the operator's stop command and stop precisely at the required position, improving the functionality and reliability of the rewinding machine. The stepper pulse generator 3 and the driver 2 can be housed in the electrical box 7.

[0063] To further explain, the stepper pulse generator 3 is connected to a foot switch 31, or K1, which controls the signal generation of the stepper pulse generator 3 by foot, reducing hand operation and improving convenience.

[0064] Both the stepping pulse generator 3 and the driver 2 are electrically connected to the switching power supply 10, which consists of a transformer and a full-bridge diode circuit, and is capable of outputting a DC 24V power supply.

[0065] Multiple rewinding machines can be set up. To facilitate the simultaneous control of multiple rewinding machines, such as controlling two rewinding machines, an interlock circuit can be set up to interlock the two rewinding machines, thereby realizing the simultaneous start-stop or forward / reverse control of two rewinding machines.

[0066] Interlocking circuits have multiple implementation methods. The first implementation method is described in the reference section. Figures 6 to 9 The interlock circuit includes a first plug-in terminal 91, a second plug-in terminal 92, a first isolation relay 93, and a second isolation relay 94;

[0067] The first plug-in terminal 91 and the second plug-in terminal 92 are cross-connected;

[0068] The input terminal of the first isolation relay 93 is electrically connected to the step pulse generator 3 of one of the rewinding machines, and the output terminal of the first isolation relay 93 is electrically connected to the first plug-in terminal 91.

[0069] The input terminal of the second isolation relay 94 is electrically connected to the step pulse generator 3 of another rewinding machine, and the output terminal of the second isolation relay 94 is electrically connected to the second plug-in terminal 92.

[0070] The stepping pulse generator 3 is connected to a foot switch 31, namely K1. One end of the foot switch 31 is connected to the IN terminal of the isolation relay, and the COM and NO terminals of the isolation relay are connected to the plug-in terminals respectively.

[0071] When the two rewinding machines are interlocked, one end of the foot switch 31 of one of the rewinding machines is connected to the IN terminal of the first isolation relay 93, the COM terminal and the NO terminal of the first isolation relay 93 are connected to the TX03 terminal and the TX04 terminal of the first plug-in terminal 91 respectively, and the ENA- terminal and the GND terminal of the driver 2 are connected to the TX01 terminal and the TX02 terminal of the first plug-in terminal 91 respectively.

[0072] One end of the foot switch 31 of the other rewinder is connected to the IN terminal of the second isolation relay 94. The COM and NO terminals of the second isolation relay 94 are connected to the TX03 and TX04 terminals of the second plug-in terminal 92, respectively. The ENA- and GND terminals of the driver 2 are connected to the TX01 and TX02 terminals of the second plug-in terminal 92, respectively.

[0073] The first plug-in terminal 91 and the second plug-in terminal 92 are cross-connected, that is, the TX01 and TX02 ends of the first plug-in terminal 91 are connected to the TX03 and TX04 ends of the second plug-in terminal 92 respectively, and the TX03 and TX04 ends of the first plug-in terminal 91 are connected to the TX01 and TX02 ends of the second plug-in terminal 92 respectively.

[0074] In this way, the two rewinding machines are interlocked through isolation relays and plug-in terminals, which means that the two rewinding machines can be started, stopped, or rotated in both directions simultaneously.

[0075] The second implementation of the interlock circuit is described in reference to... Figure 10 and Figure 11 The interlock circuit includes a first plug-in terminal 91, a second plug-in terminal 92, a first self-locking button 95, and a second self-locking button 96;

[0076] The first plug-in terminal 91 and the second plug-in terminal 92 are electrically connected to each other, and both are electrically connected to the switching power supply 10;

[0077] The first plug terminal 91 is connected to a first self-locking button 95, and the second plug terminal 92 is connected to a second self-locking button 96.

[0078] The TX01 and TX02 terminals of the first plug-in terminal 91 and the TX01 and TX02 terminals of the second plug-in terminal 92 are electrically connected respectively. The TX01 and TX02 terminals of the first plug-in terminal 91 and the second plug-in terminal 92 are respectively connected to the L terminal and N terminal of the switching power supply 10. The TX01 terminal of the first plug-in terminal 91 is connected to a first self-locking button 95, and the TX01 terminal of the second plug-in terminal 92 is connected to a second self-locking button 96. In this way, by touching the corresponding self-locking button, the two rewinding machines can be interlocked and driven, that is, the two rewinding machines can be started, stopped or reversed simultaneously.

[0079] The above description only discloses some embodiments of the present invention. For those skilled in the art, various modifications and improvements can be made without departing from the inventive concept of the present invention, and these all fall within the scope of protection of the invention.

Claims

1. An electric rewinding machine, characterized in that, It includes a stepper motor (1), a transmission unit (4), and a reel unit (5); The reel unit (5) includes a main shaft (51) and a first baffle (52). The first baffle (52) includes a cylindrical portion (521) with a shaft hole (522). One end of the main shaft (51) is inserted into the shaft hole (522). The transmission unit (4) includes a first rotating shaft (41) and a second rotating shaft (43), and the first rotating shaft (41) and the second rotating shaft (43) are drivenly connected; The first rotating shaft (41) is connected to the output end of the stepper motor (1), and the output end of the second rotating shaft (43) is inserted into the shaft hole (522); It also includes a step pulse generator (3) and a driver (2), the output terminal of the step pulse generator (3) is electrically connected to the input terminal of the driver (2), and the output terminal of the driver (2) is electrically connected to the input terminal of the stepper motor (1); The step pulse generator (3) is connected to a foot switch (31); The cylindrical portion (521) of the first baffle (52) is connected to the bracket (6) via a bearing; It also includes a damping unit (8), which is fixedly connected to the bracket (6), and the end face of the damping unit (8) abuts against the first baffle (52).

2. The electric rewinding machine according to claim 1, characterized in that, The transmission unit (4) further includes a first bevel gear (42) and a second bevel gear (44), the first bevel gear (42) meshing with the second bevel gear (44), the first bevel gear (42) being linked with the first rotating shaft (41), and the second bevel gear (44) being linked with the second rotating shaft (43).

3. The electric rewinding machine according to claim 2, characterized in that, The scroll unit (5) further includes a second baffle (53), which is connected to the end of the main shaft (51) away from the first baffle (52); A handle (54) is connected to the edge of the second baffle (53).

4. A circuit connection structure for a rewinding machine, characterized in that, The rewinding machine is an electric rewinding machine as described in claim 1; The step pulse generator (3) is connected to a speed regulating potentiometer (32); The step pulse generator (3) is connected to a forward and reverse control switch (33).

5. The circuit connection structure of the rewinding machine according to claim 4, characterized in that, Both the step pulse generator (3) and the driver (2) are electrically connected to the switching power supply (10).

6. The circuit connection structure of the rewinding machine according to claim 4, characterized in that, The rewinding machine is provided in two parts, and the circuit connection structure also includes an interlock circuit, which can drive both rewinding machines simultaneously.

7. The circuit connection structure of the rewinding machine according to claim 6, characterized in that, The interlock circuit includes a first plug-in terminal (91), a second plug-in terminal (92), a first isolation relay (93), and a second isolation relay (94); The first plug-in terminal (91) and the second plug-in terminal (92) are cross-connected; The input terminal of the first isolation relay (93) is electrically connected to the step pulse generator (3) of one of the rewinding machines, and the output terminal of the first isolation relay (93) is electrically connected to the first plug-in terminal (91). The input terminal of the second isolation relay (94) is electrically connected to the step pulse generator (3) of another rewinding machine, and the output terminal of the second isolation relay (94) is electrically connected to the second plug-in terminal (92).

8. The circuit connection structure of the rewinding machine according to claim 6, characterized in that, The interlock circuit includes a first plug-in terminal (91), a second plug-in terminal (92), a first self-locking button (95), and a second self-locking button (96); The first plug-in terminal (91) and the second plug-in terminal (92) are electrically connected to each other and are both electrically connected to the switching power supply (10); The first plug terminal (91) is connected to a first self-locking button (95), and the second plug terminal (92) is connected to a second self-locking button (96).

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