Loading and unloading device for thread rolling machine

Abstract

The present invention discloses a loading and unloading device for a thread rolling machine, comprising: a thread-by-thread loading mechanism and a pushing mechanism. The thread-by-thread loading mechanism comprises: a first lifting drive mechanism, a lifting plate drivingly connected to the first lifting drive mechanism and extending in the height direction, and an inclined unloading plate inclined relative to a horizontal plane. The first lifting drive mechanism is used to transport the workpiece supported on the top of the lifting plate to the inclined unloading plate. The pushing mechanism comprises: a second lifting drive mechanism, a lifting frame drivingly connected to the second lifting drive mechanism and having a horizontal conveying trough, a horizontal linear pushing drive mechanism provided on the lifting frame, a pushing rod drivingly connected to the horizontal linear pushing drive mechanism and movably plugged into the horizontal conveying trough, and a discharging conveying mechanism located directly above or directly below the lifting frame. It can realize mechanized loading and unloading to improve production efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of thread rolling machine tooling, and in particular to a loading and unloading device for a thread rolling machine. Background Art

[0002] The thread rolling machine is a multifunctional cold extrusion forming machine tool. The thread rolling machine can perform thread, straight grain, diagonal grain rolling and other processes on the workpiece in the cold state within its rolling force range. In the straight grain thread rolling machine, the material is generally loaded manually. After the processing is completed, the thread rolling machine sends the workpiece in the opposite direction of the feeding direction. If necessary, a stacking frame will be set at the inlet and outlet of the thread rolling machine, otherwise the product will fall to the ground.

[0003] Obviously, the current straight thread rolling machine requires a mechanized loading and unloading device. Summary of the invention

[0004] In order to overcome the deficiencies of the prior art, an object of the present invention is to provide a loading and unloading device for a thread rolling machine, which can realize mechanized loading and unloading to improve production efficiency.

[0005] The purpose of the present invention is achieved by the following technical solutions:

[0006] The loading and unloading device for the thread rolling machine includes: a thread-by-thread loading mechanism and a pushing mechanism;

[0007] The one-by-one feeding mechanism comprises: a first lifting drive mechanism, a lifting plate drivingly connected to the first lifting drive mechanism and extending in the height direction, and an inclined unloading plate inclined relative to a horizontal plane; the first lifting drive mechanism is used to transport the workpiece supported on the top of the lifting plate to the inclined unloading plate;

[0008] The pushing mechanism comprises: a second lifting drive mechanism, a lifting frame drivingly connected to the second lifting drive mechanism and having a horizontal conveying trough, a horizontal linear pushing drive mechanism provided on the lifting frame, a pushing rod drivingly connected to the horizontal linear pushing drive mechanism and movably plugged into the horizontal conveying trough, and a discharging conveying mechanism located directly above or directly below the lifting frame;

[0009] The inclined unloading plate is used to transfer the workpiece to the horizontal conveying trough, the pushing rod is used to send the workpiece in the horizontal conveying trough into the thread rolling machine, and the discharging conveying mechanism is used to unload the workpiece sent out by the thread rolling machine.

[0010] Furthermore, the discharging conveying mechanism is arranged directly below the lifting frame; the horizontal height of the discharging conveying mechanism is lower than the inlet and outlet of the thread rolling machine; when the lifting frame rises, the horizontal conveying trough is connected with the inclined unloading plate.

[0011] Furthermore, the discharge conveying mechanism includes a motor and at least two conveying bars which are both in a closed-loop structure and are driven and connected to the motor. The two conveying bars are arranged at intervals to form a loading trough therebetween, and the loading trough is used to carry and guide the workpiece.

[0012] Furthermore, the discharging conveying mechanism also includes a discharging trough, and the conveying bar is arranged in the discharging trough; an inclined limit plate is respectively provided on the opposite sides of the top of the discharging trough, and the extension direction of the inclined limit plate is consistent with the extension direction of the discharging trough.

[0013] Furthermore, the pushing mechanism also includes a guide seat arranged on the lifting frame and having a guide hole, a guide rod movably plugged into the guide hole, and a linkage block fixedly connected to the guide rod; the horizontal linear pushing drive mechanism is drivingly connected to the pushing rod through the linkage block.

[0014] Furthermore, the lifting frame is provided with a material stopping block, and the material stopping block is located on a side of the horizontal conveying trough away from the inclined unloading plate.

[0015] Furthermore, the one-by-one feeding mechanism also includes an inclined material preparation plate that is inclined relative to a horizontal plane, and a horizontal height of a side of the inclined material preparation plate close to the lifting plate is lower than a horizontal height of a side away from the lifting plate.

[0016] Furthermore, the inclined material preparation plate is connected to two guide limit plates, and a material preparation area is formed between the two guide limit plates; the inclined material preparation plate is provided with a plurality of insertion holes, and the plurality of insertion holes are arranged at intervals along the horizontal direction; at least one of the guide limit plates is detachably connected to the insertion hole so as to be able to adjust the spacing between the two guide limit plates.

[0017] Furthermore, the one-by-one feeding mechanism also includes a frame, a rotating shaft pivotally connected to the frame, and a material blocking plate fixedly connected to the rotating shaft, and the material blocking plate abuts against the inclined material discharge plate to prevent the workpiece from sliding off the inclined material discharge plate.

[0018] The one-by-one feeding mechanism also includes a fixed plate fixed to the frame, the top of the fixed plate is fixedly connected to the top of the inclined unloading plate, and the lifting plate is parallel to the fixed plate.

[0019] Furthermore, the rotating shaft is fixedly connected to a lifting rod, the swinging end of the lifting rod is connected to a return spring, and the end of the return spring away from the lifting rod is connected to the frame body; the return spring is used to drive the material blocking plate to abut against the inclined material discharge plate; when the lifting frame rises, the lifting frame supports the swinging end of the lifting rod to keep the material blocking plate away from the inclined material discharge plate.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] The lifting plate is driven by the first lifting drive mechanism of the thread-by-thread feeding mechanism to enable the lifting plate to deliver the workpiece to the inclined unloading plate (because the lifting plate extends in the height direction, the wall thickness is limited and it can only support one workpiece). The workpiece then slides down to the horizontal conveying groove of the pushing mechanism on the inclined unloading plate by its own gravity. The workpiece is then pushed into the thread rolling machine for processing by the pushing rod. The lifting frame is driven by the second lifting drive mechanism to avoid the inlet and outlet of the thread rolling machine, so that the processed workpiece can be ejected by the thread rolling machine to the discharging conveying mechanism. This makes rational use of the operating mechanism of the thread rolling machine to mechanizedly complete the loading and unloading work, reduces labor and improves production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of a loading and unloading device for a thread rolling machine of the present invention;

[0023] Figure 2 for Figure 1 A local enlarged view of point A;

[0024] Figure 3 for Figure 1 Another perspective of the picture;

[0025] Figure 4 for Figure 1 Another perspective of the picture;

[0026] Figure 5 for Figure 4 A partial enlarged view of point B.

[0027] In the figure: 1. Loading and unloading device for thread rolling machine; 11. Thread-by-thread loading mechanism; 111. First lifting drive mechanism; 112. Lifting plate; 113. Inclined unloading plate; 114. Inclined material preparation plate; 1141. Insert hole; 115. Guide limit plate; 116. Frame; 117. Rotating shaft; 118. Blocking plate; 119. Fixed plate; 12. Pushing mechanism; 121. Second lifting drive mechanism; 122. Lifting frame; 1221. Horizontal conveyor Trough; 1222, blocking block; 123, horizontal linear pushing drive mechanism; 124, pushing rod; 125, discharging conveying mechanism; 1251, conveying bar; 1252, loading trough; 1253, discharging trough; 1254, inclined limit plate; 126, guide seat; 127, guide rod; 128, linkage block; 13, lifting rod; 14, reset spring; 15, top support limit rod; 16, support rod; 17, guide rail; 18, slide block; 2, workpiece. DETAILED DESCRIPTION

[0028] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment.

[0029] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element, or there may be an element centered thereon. When an element is considered to be "connected to" another element, it may be directly connected to the other element, or there may be an element centered thereon. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0030] Unless otherwise defined, all technical terms and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used in the specification of the invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0031] Figure 1 A loading and unloading device 1 for a thread rolling machine according to a preferred embodiment of the present invention is shown, comprising: a thread-by-thread loading mechanism 11 and a pushing mechanism 12 .

[0032] See also Figure 3 The feeding mechanism 11 comprises: a first lifting drive mechanism 111, a lifting plate 112 drivingly connected to the first lifting drive mechanism 111 and extending in the height direction, and an inclined unloading plate 113 (see Figure 2 ). The first lifting drive mechanism 111 is used to transport the workpiece 2 supported on the top of the lifting plate 112 to the inclined unloading plate 113, so that the workpiece 2 slides down from the top of the inclined unloading plate 113 to the pushing mechanism 12. In order to lift the workpieces 2 one by one, the lifting plate 112 is preferably extended in a vertical height direction (that is, placed vertically, of course, it is also allowed to be inclined at a certain angle, that is, extending in an inclined height direction). In this way, the thickness of the lifting plate 112 depends on the diameter of the workpiece 2. If necessary, the lifting plate 112 of different thicknesses can be replaced.

[0033] See also Figure 4 and Figure 5The pushing mechanism 12 includes: a second lifting drive mechanism 121, a lifting frame 122 which is drivingly connected to the second lifting drive mechanism 121 and has a horizontal conveying groove 1221, a horizontal linear pushing drive mechanism 123 arranged on the lifting frame 122, a pushing rod 124 which is drivingly connected to the horizontal linear pushing drive mechanism 123 and movably connected to the horizontal conveying groove 1221, and a discharging conveying mechanism 125 located directly above or directly below the lifting frame 122.

[0034] See also Figure 5 The inclined unloading plate 113 is used to transfer the workpiece 2 to the horizontal conveying trough 1221, the pushing rod 124 is used to send the workpiece 2 in the horizontal conveying trough 1221 into the thread rolling machine, and the discharge conveying mechanism 125 is used to unload the workpiece 2 sent out by the thread rolling machine.

[0035] When working, see Figure 2 , the lifting plate 112 descends to the lowest point, and the workpieces 2 are first stacked on the inclined material preparation plate 114. Driven by the gravity of the workpieces 2 themselves, the workpieces 2 closest to the lifting plate 112 slide to the top of the lifting plate 112. Then, see Figure 3 The first lifting drive mechanism 111 drives the lifting plate 112 to rise and support a workpiece 2 to rise until the workpiece 2 slides down to the inclined unloading plate 113 (see Figure 2 ). At this time, the workpiece 2 is ready to enter the pushing mechanism 12 from the feeding mechanism 11 one by one. Figure 5 , that is, the workpiece 2 falls into the horizontal conveying trough 1221, and then the horizontal linear push drive mechanism 123 drives the push rod 124 to move, so that the workpiece 2 is sent from the horizontal conveying trough 1221 to the thread rolling machine for straight grain rolling. Since the horizontal conveying trough 1221 must be at the same height as the inlet and outlet of the thread rolling machine, in order to prevent the thread rolling machine from ejecting the workpiece 2 and falling into the horizontal conveying trough 1221 or colliding with the lifting frame 122, so that it cannot fall into the discharge conveying mechanism 125, the second lifting drive mechanism 121 needs to immediately drive the lifting frame 122 to rise or fall to avoid the inlet and outlet of the thread rolling machine, so that the workpiece 2 coming out of the thread rolling machine (that is, the workpiece 2 after the straight grain rolling is completed) falls into the discharge conveying mechanism 125, and is then sent out through the discharge conveying mechanism 125. In this way, the mechanized loading and unloading of the thread rolling machine is completed.

[0036] It should be noted that, in fact, the relative position relationship between the discharge conveying mechanism 125 and the lifting frame 122 will determine the operation sequence and the position relationship of some parts. Figure 5, the discharge conveying mechanism 125 is arranged directly below the lifting frame 122; at this time, it is necessary that the horizontal height of the discharge conveying mechanism 125 is lower than the inlet and outlet of the thread rolling machine; when the lifting frame 122 rises, the horizontal conveying trough 1221 is connected with the inclined blanking plate 113, and is slightly lower than the lower end of the inclined blanking plate 113, so that the workpiece 2 can slide from the inclined blanking plate 113 to the horizontal conveying trough 1221; it is particularly noted that at this time, the horizontal height of the horizontal conveying trough 1221 is greater than the inlet and outlet of the thread rolling machine, that is, the horizontal conveying trough 1221 is avoiding the inlet and outlet of the thread rolling machine at this time, so the inlet and outlet of the thread rolling machine can horizontally blast out the processed workpiece 2, and then the workpiece 2 will fall to the discharge conveying mechanism 125, and then be sent out through the discharge conveying mechanism 125. After understanding the actual setting method of this embodiment, the setting method in which the discharge conveying mechanism 125 is arranged directly above the lifting frame 122 (i.e., the replaceable setting method) will be explained: At this time, it is necessary that the discharge conveying mechanism 125 should be arranged on the lifting frame 122 for synchronous lifting, and at this time, the horizontal conveying trough 1221 first descends to connect with the inclined unloading plate 113, so that the workpiece 2 slides from the inclined unloading plate 113 to the horizontal conveying trough 1221 (at this time, the horizontal conveying trough 1221 is also avoiding the inlet and outlet of the thread rolling machine). , so the inlet and outlet of the thread rolling machine can horizontally blast the workpiece 2 to the discharge conveying mechanism 125 to be sent out through the discharge conveying mechanism 125), and then the horizontal conveying trough 1221 rises (the discharge conveying mechanism 125 rises synchronously so its height will be higher than the inlet and outlet of the thread rolling machine, so it is in the feeding state rather than the discharging state at this time) until it is the same height as the inlet and outlet of the thread rolling machine, and then the pushing rod 124 pushes the workpiece 2 into the thread rolling machine for processing, and then the horizontal conveying trough 1221 immediately descends to avoid and carry the next workpiece 2.

[0037] Obviously, the lifting plate 112 is driven by the first lifting drive mechanism 111 of the thread-by-thread feeding mechanism 11, so that the lifting plate 112 delivers the workpiece 2 to the inclined unloading plate 113, and then the workpiece 2 slides on the inclined unloading plate 113 to the horizontal conveying groove 1221 of the pushing mechanism 12 by its own gravity, and then the workpiece 2 is pushed into the thread rolling machine for processing by the pushing rod 124, and the lifting frame 122 is driven by the second lifting drive mechanism 121 to avoid the inlet and outlet of the thread rolling machine, so that the processed workpiece 2 can be blasted out by the thread rolling machine to the discharge conveying mechanism 125, that is, the operating mechanism of the thread rolling machine is reasonably utilized to complete the work of loading and unloading in a mechanized manner, thereby reducing labor and improving production efficiency.

[0038] Preferably, see Figure 5The discharge conveying mechanism 125 includes a motor and at least two conveying bars 1251 connected to the motor in a closed loop structure. The two conveying bars 1251 are arranged at intervals to form a loading trough 1252 therebetween. The loading trough 1252 is used to carry and guide the workpiece 2. This arrangement is a clever combination of the discharge method of the thread rolling machine, that is, the workpiece 2 is linearly supported and continuously conveyed through the loading trough 1252, thereby preventing the workpiece 2 from rolling on the discharge conveying mechanism 125 to prevent the workpiece 2 from falling. It can be understood that, as an alternative, the discharge conveying mechanism 125 can also adopt a conventional conveyor, etc.

[0039] Preferably, see Figure 5 The discharging conveying mechanism 125 also includes a discharging trough 1253, and the conveying bar 1251 is arranged in the discharging trough 1253; an inclined stop plate 1254 is respectively arranged on opposite sides of the top of the discharging trough 1253, and the extending direction of the inclined stop plate 1254 is consistent with the extending direction of the discharging trough 1253. This arrangement can improve the fault tolerance of the discharging of the thread rolling machine, so that even if an unexpected situation occurs, causing a certain workpiece 2 to be ejected with a certain inclination, under the guidance of the inclined stop plate 1254, the direction can be corrected and fall into the loading trough 1252.

[0040] Preferably, see Figure 5 The pusher mechanism 12 also includes a guide seat 126 disposed on the lifting frame 122 and having a guide hole, a guide rod 127 movably connected to the guide hole, and a linkage block 128 fixedly connected to the guide rod 127 (see Figure 4 ). The horizontal linear material pushing driving mechanism 123 is drivingly connected to the pushing rod 124 through the linkage block 128. In this way, the guide seat 126 is used for guiding, thereby reducing the bearing capacity of the horizontal linear material pushing driving mechanism 123 to improve its operation accuracy.

[0041] See also Figure 5 In order to prevent the workpiece 2 from falling off the inclined blanking plate 113 due to excessive inertia and falling off the horizontal conveying trough 1221, preferably, the lifting frame 122 is provided with a stop block 1222, which is located on the side of the horizontal conveying trough 1221 away from the inclined blanking plate 113.

[0042] Preferably, in order to improve the material preparation efficiency, preferably, see Figure 4 The feeding mechanism 11 further includes an inclined material preparation plate 114 arranged obliquely relative to the horizontal plane, and the inclined material preparation plate 114 is close to the lifting plate 112 (see Figure 2 ) is lower than the horizontal height of the side away from the lifting plate 112. In this way, the workpiece 2 will be close to the lifting plate 112 due to its own gravity until a workpiece 2 in the front row rolls down to the top of the lifting plate 112.

[0043] See also Figure 2 In order to prevent multiple workpieces 2 from rolling down to the top of the lifting plate 112 side by side at the same time, preferably, the inclined material preparation plate 114 is connected to two guide limit plates 115, and a material preparation area is formed between the two guide limit plates 115. The inclined material preparation plate 114 is provided with a plurality of plug holes 1141, and the plurality of plug holes 1141 are arranged at intervals in the horizontal direction; at least one of the guide limit plates 115 is detachably plugged into the plug hole 1141, so that the spacing between the two guide limit plates 115 can be adjusted. In this way, by adjusting the spacing between the two guide limit plates 115, it can be suitable for workpieces 2 of different lengths.

[0044] Preferably, see Figure 2 or Figure 5 The one-by-one feeding mechanism 11 also includes a frame 116, a rotating shaft 117 pivotally connected to the frame 116, and a material blocking plate 118 fixedly connected to the rotating shaft 117. The material blocking plate 118 abuts against the inclined material discharge plate 113 to prevent the workpiece 2 from sliding off the inclined material discharge plate 113. This arrangement can prevent the workpiece 2 from sliding off the inclined material discharge plate 113 directly. In this embodiment, it is necessary to wait for the horizontal conveying trough 1221 to rise to connect with the inclined material discharge plate 113, and then lift the material blocking plate 118 to facilitate the workpiece 2 to slide onto the horizontal conveying trough 1221. It should be understood that the power that drives the inclined material discharge plate 113 to be lifted can be another power source, and in the embodiment, it is preferably borrowed from the original power source: see Figure 5 The rotating shaft 117 is fixedly connected to the lifting rod 13, and the swinging end of the lifting rod 13 is connected to the return spring 14. The end of the return spring 14 away from the lifting rod 13 is connected to the frame body 116. The return spring 14 is used to drive the blocking plate 118 to abut against the inclined material discharge plate 113; when the lifting frame 122 rises, the lifting frame 122 (specifically, the support rod 16 fixedly connected to the guide rod 127) supports the swinging end of the lifting rod 13 to keep the blocking plate 118 away from the inclined material discharge plate 113.

[0045] Preferably, see Figure 1 The one-by-one feeding mechanism 11 further includes a fixed plate 119 fixed to the frame 116, the top of the fixed plate 119 is fixedly connected to the top of the inclined feeding plate 113, and the lifting plate 112 is parallel to the fixed plate 119. Specifically, there is a spacing groove between the fixed plate 119 and the inclined material preparation plate 114, and the lifting plate 112 is embedded in the spacing groove and can be lifted and lowered. The fixed plate 119 supports the workpiece 2, thereby preventing the workpiece 2 from falling when being lifted by the lifting plate 112.

[0046] Also, see Figure 5In order to prevent the blocking plate 118 from frequently colliding with the inclined material discharge plate 113 for a long time, the frame 116 is provided with a top support limit rod 15 located directly below the lifting rod 13. The lifting rod 13 is limited by the top support limit rod 15 to prevent the blocking plate 118 from colliding violently with the inclined material discharge plate 113.

[0047] Also, see Figure 5 The pushing mechanism 12 further includes a guide rail 17 extending in the height direction, a slider 18 movably matched with the guide rail 17 , and the slider 18 is fixedly connected to the lifting frame 122 .

[0048] In the present invention, the linear drive mechanism may be a linear cylinder, a linear motor, a linear hydraulic cylinder, an electric push rod, etc. For example, in the present invention, the linear drive mechanisms include: a first lifting drive mechanism 111 , a second lifting drive mechanism 121 , and a horizontal linear push drive mechanism 123 .

[0049] The above-mentioned embodiments are only preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A loading and unloading device (1) for a thread rolling machine, characterized in that: include: A material feeding mechanism (11) and a material pushing mechanism (12) for each piece of material; The piece-by-piece feeding mechanism (11) comprises: a first lifting drive mechanism (111), a lifting plate (112) drivingly connected to the first lifting drive mechanism (111) and extending in a height direction, and an inclined unloading plate (113) arranged obliquely relative to a horizontal plane; the first lifting drive mechanism (111) is used to transport the workpiece (2) supported on the top of the lifting plate (112) to the inclined unloading plate (113); The pushing mechanism (12) comprises: a second lifting drive mechanism (121), a lifting frame (122) drivingly connected to the second lifting drive mechanism (121) and having a horizontal conveying groove (1221), a horizontal linear pushing drive mechanism (123) arranged on the lifting frame (122), a pushing rod (124) drivingly connected to the horizontal linear pushing drive mechanism (123) and movably connected to the horizontal conveying groove (1221), and a discharging conveying mechanism (125) located directly above or directly below the lifting frame (122); The inclined unloading plate (113) is used to transfer the workpiece (2) to the horizontal conveying trough (1221), the pushing rod (124) is used to deliver the workpiece (2) in the horizontal conveying trough (1221) into the thread rolling machine, and the unloading conveying mechanism (125) is used to unload the workpiece (2) delivered by the thread rolling machine; The pusher mechanism (12) further comprises a guide seat (126) disposed on the lifting frame (122) and provided with a guide hole, a guide rod (127) movably plugged into the guide hole, and a linkage block (128) fixedly connected to the guide rod (127); the horizontal linear pusher drive mechanism (123) is drivingly connected to the pusher rod (124) via the linkage block (128); The material discharging conveying mechanism (125) comprises a motor and at least two conveying bars (1251) both of which are in a closed-loop structure and are drive-connected to the motor. The two conveying bars (1251) are arranged at intervals to form a loading trough (1252) therebetween. The loading trough (1252) is used to carry and guide the workpiece (2).

2. The loading and unloading device (1) for a thread rolling machine according to claim 1, characterized in that: The discharge conveying mechanism (125) is arranged directly below the lifting frame (122); the horizontal height of the discharge conveying mechanism (125) is lower than the inlet and outlet of the thread rolling machine; when the lifting frame (122) rises, the horizontal conveying trough (1221) is connected with the inclined unloading plate (113).

3. The loading and unloading device (1) for a thread rolling machine according to claim 2, characterized in that: The discharge conveying mechanism (125) further comprises a discharge trough (1253), wherein the conveying bar (1251) is arranged in the discharge trough (1253); an inclined limiting plate (1254) is respectively arranged on opposite sides of the top of the discharge trough (1253), and the extension direction of the inclined limiting plate (1254) is consistent with the extension direction of the discharge trough (1253).

4. The loading and unloading device (1) for a thread rolling machine according to claim 1, characterized in that: The lifting frame (122) is provided with a material blocking block (1222), and the material blocking block (1222) is located on a side of the horizontal conveying trough (1221) away from the inclined unloading plate (113).

5. The loading and unloading device (1) for a thread rolling machine according to claim 1, characterized in that: The one-by-one feeding mechanism (11) further comprises an inclined material preparation plate (114) arranged obliquely relative to a horizontal plane, wherein the horizontal height of a side of the inclined material preparation plate (114) close to the lifting plate (112) is lower than the horizontal height of a side away from the lifting plate (112).

6. The loading and unloading device (1) for a thread rolling machine according to claim 5, characterized in that: The inclined material preparation plate (114) is connected to two guide limit plates (115), and a material preparation area is formed between the two guide limit plates (115); the inclined material preparation plate (114) is provided with a plurality of insertion holes (1141), and the plurality of insertion holes (1141) are arranged at intervals in the horizontal direction; at least one of the guide limit plates (115) is detachably plugged into the insertion hole (1141) so as to be able to adjust the spacing between the two guide limit plates (115).

7. The loading and unloading device (1) for a thread rolling machine according to claim 2, characterized in that: The one-by-one feeding mechanism (11) further comprises a frame (116), a rotating shaft (117) pivotally connected to the frame (116), and a material blocking plate (118) fixedly connected to the rotating shaft (117), wherein the material blocking plate (118) abuts against the inclined material discharge plate (113) to prevent the workpiece (2) from sliding off the inclined material discharge plate (113); The one-by-one feeding mechanism (11) further comprises a fixed plate (119) fixed to the frame (116), the top of the fixed plate (119) being fixedly connected to the top of the inclined unloading plate (113), and the lifting plate (112) being parallel to the fixed plate (119).

8. The loading and unloading device (1) for a thread rolling machine according to claim 7, characterized in that: The rotating shaft (117) is fixedly connected to a lifting rod (13), and the swinging end of the lifting rod (13) is connected to a return spring (14), and the end of the return spring (14) away from the lifting rod (13) is connected to the frame body (116); the return spring (14) is used to drive the material blocking plate (118) to abut against the inclined material discharge plate (113); when the lifting frame (122) rises, the lifting frame (122) supports the swinging end of the lifting rod (13) to make the material blocking plate (118) away from the inclined material discharge plate (113).

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