Drawing frame

Abstract

The utility model discloses a drawing frame, relates to the technical field of textile machinery, and can automatically control lifting or falling of a cradle according to needs, so that the labor cost is reduced, and the working efficiency of equipment is improved. The drawing frame comprises a drafting mechanism; the first end of the cradle is rotationally connected with the drafting mechanism; the transmission assembly is connected with the second end of the cradle; and the driving piece is used for driving the transmission assembly so as to lift or drop the cradle.

Description

Technical Field

[0001] The present application relates to the technical field of textile machinery, and in particular to a drawing frame. Background Art

[0002] In the field of textile machinery technology, the drawing frame is a commonly used equipment that can combine, stretch and mix fiber strips. In the stretching area, the fiber strips are stretched and thinned by a pressure device and a leather roller to make the fibers more parallel and oriented. However, when the pressure of the pressure device on the leather roller needs to be adjusted, for example, when the equipment is shut down for a long time, the pressure device will still exert pressure on the leather roller, which can easily cause deformation of the leather roller over a long period of time. At present, this situation is overly dependent on manual operation, so the labor cost is relatively high. Utility Model Content

[0003] The embodiment of the present application provides a drawing frame, which can automatically control the lifting or lowering of the cradle as needed, thereby reducing labor costs and improving the working efficiency of the equipment.

[0004] The above-mentioned draw frame comprises:

[0005] Drafting mechanism;

[0006] A cradle, a first end of which is rotatably connected to the drafting mechanism;

[0007] A transmission assembly connected to the second end of the cradle;

[0008] The driving member is used to drive the transmission assembly to lift or lower the cradle.

[0009] In some embodiments, the drafting mechanism includes a pressurizing base, and the pressurizing base is provided with an open slot;

[0010] Wherein, a first rotating shaft is disposed at the second end of the cradle, the first rotating shaft is rotatably connected to the transmission assembly, and the first rotating shaft is clamped in the open slot.

[0011] In some embodiments, the driving member comprises a piston actuator, and the piston actuator comprises a cylinder and a piston rod;

[0012] Wherein, the cylinder body can swing around a fixed point, and the piston rod is connected to the transmission assembly.

[0013] In some embodiments, the transmission assembly includes:

[0014] A driving connecting rod, one end of which is connected to the piston rod;

[0015] A second rotating shaft, rotatably connected to the other end of the driving connecting rod, wherein the second rotating shaft is provided with an eccentric point;

[0016] A pull rod has one end rotatably connected to the first rotating shaft of the cradle, and the other end rotatably connected to the eccentric point of the second rotating shaft.

[0017] In some embodiments, the piston actuator is a pressure relief cylinder.

[0018] When the pressure relief cylinder receives a pressure relief gas source, the pressure relief cylinder is used to contract the piston rod so that the first rotating shaft slides upward in the open groove to lift the first end of the cradle;

[0019] Otherwise, the pressure relief cylinder is used to extend the piston rod to make the first rotating shaft slide downward in the open groove to lower the first end of the cradle.

[0020] In some embodiments, the drawing frame further comprises:

[0021] The solenoid valve is arranged between the pressure relief cylinder and the pressure relief gas source.

[0022] In some embodiments, the drawing frame further comprises:

[0023] A programmable logic controller is connected to the solenoid valve for communication, and the programmable logic controller is used to control the connection or cutoff of the solenoid valve.

[0024] In some embodiments, a locking mechanism is provided between the first end of the cradle and the drafting mechanism.

[0025] In some embodiments, the cradle includes a pressurizing mechanism for pressurizing the pressurized workpiece on the drafting mechanism, and the pressurizing mechanism is disposed at a position close to the second end of the cradle.

[0026] In some embodiments, the pressurizing mechanism comprises:

[0027] A pressurizing seat is formed with a receiving cavity;

[0028] A pressurizing column, nested in the accommodating cavity, and capable of reciprocating along the inner wall of the accommodating cavity;

[0029] An elastic member is connected between the bottom of the accommodating cavity and the pressurizing column.

[0030] In summary, the drawing frame provided in the embodiment of the present application includes: a drafting mechanism; a cradle, a first end of which is rotatably connected to the drafting mechanism; a transmission assembly connected to the second end of the cradle; and a driving member for driving the transmission assembly to lift or lower the cradle. Compared with the related art, the cradle is manually lifted or lowered to control the pressure of the cradle on the drafting mechanism, which increases the labor cost. In addition, due to the complex on-site conditions in actual production, it is difficult for the staff to go to the equipment in person to lift or lower the cradle, which aggravates the wear of the drawing frame equipment. In this embodiment, a driving member is set to lift or lower the cradle to replace manual operation, thereby reducing labor costs, and can timely control the cradle to relieve pressure on the drafting mechanism or re-apply pressure, thereby improving the stability and work efficiency of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present application. Also, the same reference symbols are used throughout the accompanying drawings to represent the same components. In the accompanying drawings:

[0032] Figure 1 A schematic structural diagram of a drawing frame provided in an embodiment of the present application at a first angle;

[0033] Figure 2 A schematic structural diagram of a drawing frame provided in an embodiment of the present application at a second angle;

[0034] Figure 3 A left view of a drawing frame provided in an embodiment of the present application;

[0035] Figure 4 A schematic cross-sectional view of a pressurizing mechanism provided in an embodiment of the present application;

[0036] Figure 5A A drawing frame provided in an embodiment of the present application is provided along a pressure-applied Figure 3 Front view in the middle AA direction;

[0037] Figure 5B A drawing frame provided in an embodiment of the present application is provided along the Figure 3 Front view in the middle AA direction;

[0038] Figure 6 A pneumatic principle diagram provided for an embodiment of the present application;

[0039] Figure 7 An electrical schematic diagram provided for an embodiment of the present application.

[0040] in, Figures 1 to 7The corresponding relationship between the component names and numbers is as follows:

[0041] 100 drafting mechanism, 200 cradle, 300 transmission assembly, 400 drive member, 500′ pressure workpiece, 600 solenoid valve, 700 programmable logic controller;

[0042] 110 pressurizing base, 210 first rotating shaft, 220 locking mechanism, 230 pressurizing mechanism, 310 driving connecting rod, 320 second rotating shaft, 330 pulling rod, 340 rotating shaft seat, 410 cylinder seat, 420′ pressure relief air source;

[0043] 111 opening slot, 231 pressurizing seat, 232 pressurizing column, 233 elastic member, 321 eccentric shaft, 610 speed regulating valve, 620 filter pressure reducing valve, 710 control panel. DETAILED DESCRIPTION

[0044] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments.

[0045] Figure 1 A schematic structural diagram of a drawing frame provided in an embodiment of the present application at a first angle, Figure 2 A schematic structural diagram of a drawing frame provided in an embodiment of the present application at a second angle, Figure 1 and Figure 2 The overall structure of the draw frame provided by the embodiment of the present application is shown from different angles. Figure 3 It is a left view of a drawing frame provided in an embodiment of the present application. The drawing frame provided in an embodiment of the present application will be introduced below in conjunction with the accompanying drawings.

[0046] like Figure 1 , Figure 2 and Figure 3 As shown, the above-mentioned drawing frame includes: a drafting mechanism 100; a cradle 200, a first end of which is rotatably connected to the above-mentioned drafting mechanism 100; a transmission assembly 300, connected to the second end of the above-mentioned cradle 200; and a driving member 400, which is used to drive the above-mentioned transmission assembly 300 to lift or lower the above-mentioned cradle 200.

[0047] It should be noted that the drafting mechanism 100 is a conventional textile machinery in the field of processing machinery, which generally includes a plurality of orderly arranged leather rollers, which are fixed by bearing seats (such as Figure 2The fiber strips to be processed are transported by the leather rollers. The cradle 200 is also called the pressurized cradle 200, which is a long strip structure, and the length direction is consistent with the fiber strip transportation direction. The drafting mechanism 100 applies a certain pressure to the drafting mechanism 100 so that the fiber strips are stretched.

[0048] Exemplarily, the driving member 400 refers to a device or apparatus that can generate a certain amount of mechanical power when receiving a power source such as a power source or a gas source. The transmission assembly 300 is used to transmit the power generated by the driving member 400. The first end and the second end of the cradle 200 can be understood as two ends of the frame, wherein the first end is rotatably connected to the drafting mechanism 100, that is, the cradle 200 can be rotated to a certain extent with the second end as the center, and the second end is connected to the transmission assembly 300. Therefore, under the action of the driving member 400, the second end of the cradle 200 can be lifted, or when the cradle 200 is in a lifted state, it can be dropped.

[0049] It can be understood that, in actual production, the first end of the cradle 200 may also be referred to as a cradle front end, and the second end may also be referred to as a cradle rear end.

[0050] Compared with the related art, the drawing frame provided in the embodiment of the present application has a large labor cost in that the cradle 200 is manually lifted or lowered to control the pressure of the cradle 200 on the drafting mechanism 100. In addition, due to the complex on-site conditions in actual production, it is difficult to ensure that the corresponding operations are performed in time if the staff personally go to the equipment to lift or lower the cradle 200, thereby aggravating the wear of the drawing frame equipment. In this embodiment, a driving member 400 is provided to lift or lower the cradle 200 to replace the manual operation, thereby reducing the labor cost, and the cradle 200 can be controlled in time to relieve the pressure on the drafting mechanism 100 or re-apply pressure, thereby improving the stability and working efficiency of the equipment.

[0051] According to some embodiments, the cradle 200 includes a pressurizing mechanism 230 , and the pressurizing mechanism 230 is used to pressurize the workpiece 500 ′ on the drafting mechanism 100 . The pressurizing mechanism 230 is disposed at a position close to the second end of the cradle 200 .

[0052] It should be noted that the above-mentioned pressed workpiece 500 ′ can be understood as the top roller of the above-mentioned drafting mechanism.

[0053] Exemplarily, the pressure mechanism 230 is used to pressurize the compressed workpiece 500' on the drafting mechanism 100, and is arranged near the first end of the cradle 200, i.e., the front end of the cradle, to ensure that pressure can be applied to the fiber strips on the drafting mechanism 100 without omission. At the same time, multiple pressure mechanisms 230 arranged along the rolling direction of the drafting mechanism 100 can also be provided to more fully pressurize the fiber strips.

[0054] In some examples, Figure 4 A schematic cross-sectional view of a pressurizing mechanism provided in an embodiment of the present application, such as Figure 4 As shown, the pressurizing mechanism 230 includes: a pressurizing seat 231, which forms a receiving cavity; a pressurizing column 232, which is nested in the receiving cavity, and the pressurizing column 232 can reciprocate along the inner wall of the receiving cavity; and an elastic member 233, which is connected between the bottom of the receiving cavity and the pressurizing column 232.

[0055] For example, Figure 4 As shown, the pressurizing seat 231 forms a accommodating cavity, and the pressurizing column 232 can be a force-applying member of a solid structure, which is nested in the above-mentioned accommodating cavity, and one end of which can be exposed in the accommodating cavity is used to pressurize the fiber strip, and the other end is connected to the bottom of the accommodating cavity through an elastic member 233.

[0056] For example, Figure 4 As shown, the elastic member 233 may be a spring, one end of which is fixed to the pressure seat 231, and the other end of which is in contact with the pressure column 232, and the front end of the pressure column 232 faces the drafting mechanism 100. In this way, when the cradle 200 presses the drafting mechanism 100, the pressure column 232 contacts the top roller of the drafting mechanism 100, and the compression spring presses the pressure column 232 to stretch the fiber strip between the top roller and the pressure mechanism 230, and when the pressure is released, the cradle 200 is lifted, the compressed spring gradually recovers, and the pressure on the pressure roller gradually decreases.

[0057] In some examples, such as Figure 1 and Figure 2 As shown, a locking mechanism 220 is provided between the first end of the cradle 200 and the drafting mechanism 100 .

[0058] For example, the locking mechanism 220 may be a handle-type hook lock, which is disposed between the front end of the cradle and the drafting mechanism 100, and can play a fixing role when the drawing frame is working, preventing the cradle 200 from being relatively displaced from the drafting mechanism 100. In addition, when it is necessary to lift or lower the first end of the cradle 200, the staff can conveniently operate the first end of the cradle 200 through the handle.

[0059] Figure 5A A drawing frame provided in an embodiment of the present application is provided along a pressure-applied Figure 3 Front view in the AA direction, Figure 5B A drawing frame provided in an embodiment of the present application is provided along the Figure 3 Front view in the AA direction, Figure 5A and Figure 5B The following diagrams intuitively show the relative position changes of the cradle 200 of the drawing frame provided by the embodiment of the present application in the pressurized state and the depressurized state at the same viewing angle. Figure 1 , Figure 2 and Figure 3 Based on Figure 5A and Figure 5B , this embodiment is introduced.

[0060] According to some embodiments, Figure 1 and Figure 2 As shown, the stretching mechanism 100 includes a pressurizing base 110 , which is provided with an open slot 111 ; wherein, a first rotating shaft 210 is provided at the second end of the cradle 200 , and the first rotating shaft 210 is rotatably connected to the transmission assembly 300 , and the first rotating shaft 210 is clamped in the open slot 111 .

[0061] Exemplarily, the stretching mechanism 100 includes a pressurizing base 110, an opening groove 111 is provided on the pressurizing base 110, a first rotating shaft 210 is provided on the second end of the cradle 200, the first rotating shaft 210 is clamped in the opening groove 111, and the first rotating shaft 210 is rotatably connected to the transmission assembly 300, so that the first rotating shaft 210 can be moved up and down along the opening groove 111 under the drive of the transmission assembly 300, and the lifting or lowering trajectory of the second end of the cradle 200 is also equivalent to the moving trajectory of the first rotating shaft 210.

[0062] It should be noted that if Figure 5A and Figure 5B As shown, in the pressurized state and the depressurized state, the second end of the cradle 200 is vertically lifted or lowered relative to the ground through the open groove 111. Since the first end of the cradle 200 is rotatably connected to the above-mentioned stretching mechanism 100, the cradle 200 applies pressure to the stretching mechanism 100 or reduces the pressure more evenly, thereby improving the stretching effect on the fiber strips.

[0063] In some examples, the opening of the opening slot 111 is fully opened so that the second end of the cradle 200 can be fully lifted and separated from the pressurized base 110 to facilitate inspection or maintenance.

[0064] It should be noted that the first end of the cradle 200 is clamped to the opening groove 111 via a rotating shaft, so that the cradle 200 can rotate around the first end to realize the folding opening of the drawing frame from the front end of the cradle to the rear end of the cradle.

[0065] In some examples, such as Figure 1 and Figure 2 As shown, the driving member 400 comprises a piston actuator, which comprises a cylinder body and a piston rod; wherein the cylinder body can swing around a fixed point, and the piston rod is connected to the transmission assembly 300 .

[0066] It should be noted that the above-mentioned piston-type actuator can be a pneumatic cylinder or an electric cylinder, which outputs mechanical power through the reciprocating motion of the piston rod.

[0067] For example, Figure 1 , Figure 2 , Figure 3 , Figure 5A and Figure 5B As shown, the cylinder body of the piston actuator can swing around a fixed point, which can be achieved by setting a cylinder seat 410, which is fixed to the drafting mechanism 100 and is rotatably connected to the cylinder body, and the piston rod is connected to the above-mentioned transmission assembly 300.

[0068] It should be noted that the piston rod performs linear reciprocating motion and is connected to the transmission assembly 300, which is in turn connected to the first rotating shaft 210. Therefore, when the first end of the cradle 200 is lifted or lowered, the cylinder body is rotatable, thereby giving the piston rod a larger working space, and the cradle 200 has a larger range of movement.

[0069] In some examples, such as Figure 1 , Figure 2 , Figure 3 , Figure 5A and Figure 5B As shown, the transmission assembly 300 includes: a driving connecting rod 310, one end of which is connected to the piston rod; a second rotating shaft 320, which is rotatably connected to the other end of the driving connecting rod 310, and the second rotating shaft 320 is provided with an eccentric point; a pull rod 330, one end of which is rotatably connected to the first rotating shaft 210 of the cradle 200, and the other end of which is rotatably connected to the eccentric point of the second rotating shaft 320.

[0070] Exemplarily, the driving connecting rod 310 can be a straight rod or a connecting rod, one end of which is connected to the piston rod of the above-mentioned piston actuator, and the other end is connected to the above-mentioned second rotating shaft 320, so that when the piston rod transmits mechanical power by extension or contraction, the second rotating shaft 320 will rotate accordingly, and the second rotating shaft can be rotatably connected to the rotating shaft seat 340 fixed to the above-mentioned drawing mechanism 100, so as to ensure stability during rotation.

[0071] like Figure 5A and Figure 5B As shown, an eccentric point is provided on the second rotating shaft 320, that is, an eccentric shaft 321 is sleeved on the second rotating shaft 320, the eccentric shaft 321 is connected to one end of a pull rod 330, and the other end of the pull rod 330 is rotatably connected to the first rotating shaft 210 of the cradle 200, and the pull rod 330 can be a straight rod.

[0072] It should be noted that as the piston rod of the piston actuator extends or contracts, the second rotating shaft 320 rotates under the action of the driving connecting rod 310, and the eccentric point arranged on the second rotating shaft 320 drives one end of the pull rod 330 to perform a circular motion. Since the first rotating shaft 210 of the above-mentioned cradle 200 is clamped in the open groove 111, the first end of the cradle 200 will move up and down in the open groove 111, thereby realizing the lifting or lowering of the rear end of the cradle.

[0073] In some examples, the piston actuator may be a pressure relief cylinder.

[0074] When the pressure relief cylinder receives the pressure relief gas source 420', the pressure relief cylinder is used to retract the piston rod so that the first rotating shaft 210 slides upward in the opening groove 111 to lift the first end of the cradle 200;

[0075] Otherwise, the pressure relief cylinder is used to extend the piston rod to allow the first rotating shaft 210 to slide downward in the opening groove 111 to lower the first end of the cradle 200 .

[0076] It should be noted that the pressure relief cylinder contracts the piston rod when receiving the pressure relief gas source 420', and extends the piston rod under the action of the internal elastic element or the internal pre-filled gas when the pressure relief gas source 420' is withdrawn.

[0077] The present embodiment is introduced below in conjunction with specific working conditions.

[0078] 1. The drawing frame needs to be depressurized due to long-term shutdown. Figure 5A Towards Figure 5B change:

[0079] The pressure relief cylinder is charged with a pressure relief gas source 420′, and the piston rod of the cylinder contracts under the action of the gas source, thereby driving the second rotating shaft 320 to rotate by driving the connecting rod 310; the eccentric point on the second rotating shaft 320 drives the pull rod 330 to move upward as it rotates, and then the pull rod 330 drives the first rotating shaft 210 to move upward in the open groove 111, thereby completing the lifting of the front end of the cradle. In this process, the pressurizing mechanism 230 of the cradle 200 gradually disengages from the pressurizing of the drawing mechanism 100 as it is lifted, thereby completing the pressure relief work.

[0080] 2. After the pressure is released, the drawing frame will re-enter the pressurization work, that is, Figure 5B Towards Figure 5A change:

[0081] Stop filling the pressure relief gas source 420′ into the pressure relief cylinder, and the filling pressure will decrease, so that the pressure relief cylinder will extend the piston rod under the action of the internal elastic element or the internal pre-filled gas pressure, and drive the second rotating shaft 320 to move by driving the connecting rod 310. The eccentric point on the second rotating shaft 320 drives the pull rod 330 to move downward as it rotates, and then the pull rod 330 drives the first rotating shaft 210 to move forward and downward in the opening groove 111, thereby completing the descent of the front end of the cradle. In this process, the pressurizing mechanism 230 of the cradle 200 re-pressurizes the drawing mechanism 100 as it descends, thereby completing the pressurization recovery work.

[0082] Figure 6 A pneumatic principle diagram provided in an embodiment of the present application, such as Figure 6 As shown, in some examples, in order to accurately control the above-mentioned piston actuators such as the pressure relief cylinder, the drawing machine provided in the embodiment of the present application also includes: a solenoid valve 600, which is arranged between the above-mentioned pressure relief cylinder and the above-mentioned pressure relief air source 420'.

[0083] It should be noted that the electromagnetic valve 600 is provided between the pressure relief gas source 420' and the pressure relief cylinder, so that the connection state between the pressure relief gas source 420' and the pressure relief cylinder can be accurately and quickly controlled. For example, when the drawing frame needs to be depressurized, the electromagnetic valve 600 is controlled to be connected, the pressure relief gas source 420' can be connected to the pressure relief cylinder, the piston rod is retracted, and the cradle 200 is lifted; on the contrary, when the drawing frame needs to be re-pressurized, the electromagnetic valve 600 is controlled to be cut off, the pressure relief gas source 420' cannot be connected to the pressure relief cylinder, the piston rod is extended, and the cradle 200 is lowered.

[0084] For example, Figure 6 As shown, a filter pressure reducing valve 620, a solenoid valve 600 and a speed regulating valve 610 are sequentially arranged in series between the pressure relief gas source 420' and the above-mentioned piston actuator.

[0085] A filter pressure reducing valve 620 is arranged near the pressure relief gas source 420', which can filter impurities in the gas and reduce the corrosion of the impurities to the cylinder and pipeline. It can also control the gas pressure to reach the actual required value without adjusting the gas pressure from the source, thereby improving controllability and convenience.

[0086] A speed regulating valve 610 is arranged near the pressure relief cylinder to control the speed of the gas entering the pressure relief cylinder, which will affect the movement speed of the piston rod of the cylinder, so that the lifting or lowering speed of the cradle 200 can be controlled by the speed regulating valve 610.

[0087] In some examples, Figure 7 An electrical schematic diagram provided for an embodiment of the present application, such as Figure 7 As shown, the above-mentioned drawing frame further includes: a programmable logic controller 700, which is in communication connection with the above-mentioned solenoid valve 600, and the programmable logic controller 700 is used to control the connection or cutoff of the solenoid valve 600.

[0088] It should be noted that PLC (Programmable Logic Controller) is a digital operating electronic system commonly used in industry, which can realize real-time control of the connection or cutoff of the solenoid valve 600 based on actual needs on site.

[0089] For example, Figure 7 As shown, taking Guangyang SN type PLC as an example, the AC (L) and AC (N) of the PLC are connected to the AC200V AC power supply for powering the PLC, and the FG interface is grounded; Cq0 and Q0 represent the output address electrically connected to the above-mentioned solenoid valve 600 to control whether the DC24V DC power supply is connected to the solenoid valve 600, thereby controlling the connection or cutoff of the solenoid valve 600; PORT0 and RS232 define the communication protocol and interface standard.

[0090] By setting up the PLC, precise control of the solenoid valve 600 is achieved. Furthermore, in order to make it easier for the staff to operate, the external control panel 710 can be used to transmit control instructions to the PLC, and the PLC controls the solenoid valve 600 to be turned on or off based on the control instructions.

[0091] For example, Figure 7 As shown, the control screen 710 takes the Koyo CG type touch screen as an example. The touch screen adopts a DC24 direct current power supply, and the interface standard and communication protocol are consistent with the aforementioned Koyo SN type PLC, both of which are PORT0 and RS232.

[0092] For example, the aforementioned Koyo CG touch screen can be set in the control room, and can receive and reflect the working conditions of the on-site draw frame to the staff in the control room in the form of video, data, etc. through the aforementioned Koyo SN PLC. When the staff determines that the working state of the draw frame needs to be adjusted, the touch screen sends a control command to the PLC to control the solenoid valve 600 to be turned on or off, thereby realizing the control of depressurizing or re-pressurizing the draw frame.

[0093] The terms "first", "second", "third", "fourth", etc. (if any) in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments described herein can be implemented in an order other than that illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0094] In the description of the present application, it should be understood that the directions or positional relationships indicated by the terms "up", "down", "left", "right", "front", "back", etc. are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or unit referred to must have a specific direction, be constructed and operated in a specific orientation, and therefore, should not be understood as a limitation on the present application.

[0095] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "specific embodiments", etc. means that the specific features, structures, 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 representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0096] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A drawing frame, characterized in that: include: Drafting mechanism; A cradle, a first end of which is rotatably connected to the drafting mechanism; A transmission assembly connected to the second end of the cradle; The driving member is used to drive the transmission assembly to lift or lower the cradle.

2. The drawing frame according to claim 1, characterized in that: The drafting mechanism comprises a pressurizing base, and the pressurizing base is provided with an open slot; Wherein, a first rotating shaft is disposed at the second end of the cradle, the first rotating shaft is rotatably connected to the transmission assembly, and the first rotating shaft is clamped in the open slot.

3. The drawing frame according to claim 2, characterized in that: The driving member comprises a piston-type actuator, and the piston-type actuator comprises a cylinder body and a piston rod; Wherein, the cylinder body can swing around a fixed point, and the piston rod is connected to the transmission assembly.

4. The drawing frame according to claim 3, characterized in that: The transmission assembly comprises: A driving connecting rod, one end of which is connected to the piston rod; A second rotating shaft, rotatably connected to the other end of the driving connecting rod, wherein the second rotating shaft is provided with an eccentric point; A pull rod has one end rotatably connected to the first rotating shaft of the cradle, and the other end rotatably connected to the eccentric point of the second rotating shaft.

5. The drawing frame according to claim 3 or 4, characterized in that: The piston-type actuator is a pressure relief cylinder. When the pressure relief cylinder receives a pressure relief gas source, the pressure relief cylinder is used to contract the piston rod so that the first rotating shaft slides upward in the open groove to lift the first end of the cradle; Otherwise, the pressure relief cylinder is used to extend the piston rod to make the first rotating shaft slide downward in the open groove to lower the first end of the cradle.

6. The drawing frame according to claim 5, characterized in that: Also includes: The solenoid valve is arranged between the pressure relief cylinder and the pressure relief gas source.

7. The drawing frame according to claim 6, characterized in that: Also includes: A programmable logic controller is connected to the solenoid valve for communication, and the programmable logic controller is used to control the connection or cutoff of the solenoid valve.

8. The drawing frame according to any one of claims 1 to 4, characterized in that A locking mechanism is arranged between the first end of the cradle and the drafting mechanism.

9. The drawing frame according to any one of claims 1 to 4, characterized in that The cradle comprises a pressurizing mechanism for pressurizing the pressed workpiece on the drafting mechanism, and the pressurizing mechanism is arranged at a position close to the second end of the cradle.

10. The drawing frame according to claim 9, characterized in that: The pressurizing mechanism comprises: A pressurizing seat is formed with a receiving cavity; A pressurizing column, nested in the accommodating cavity, and capable of reciprocating along the inner wall of the accommodating cavity; An elastic member is connected between the bottom of the accommodating cavity and the pressurizing column.

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