Nut stamping device for screw production

Abstract

The invention relates to the technical field of nut production, in particular to a nut stamping device for screw production, which comprises a machine table, a support is fixed at the top end of the machine table, a stamping mechanism is arranged in the middle of the support, a stamping head is arranged at the driving end of the stamping mechanism, and a conveying mechanism is inserted into the upper part of the support; a positioning assembly is arranged in the rotating assembly, a discharging assembly is arranged on the upper portion of the machine table, and a pushing assembly is arranged on the upper portion of the machine table. Compared with the prior art, the motor drives the special-shaped gear to rotate so as to drive the positioning tray to rotate, the pushing assembly can push the to-be-stamped parts into the notches for positioning, and after the positioning tray rotates by one circle, the to-be-stamped parts are locked in all the notches of the positioning tray; and at the moment, a plurality of products can be punched at a time through punching operation, the punching efficiency of the nut is improved, the operation frequency of the punching mechanism is reduced, and then the energy-saving effect is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of nut production, and in particular to a nut punching device for screw production. Background Art

[0002] Nuts, also known as nuts, have internal threads and are parts that are screwed together with bolts or screws for fastening. The production process of nuts includes stamping, which is to use a stamping device to stamp the metal sheet so that the middle of the metal sheet is penetrated, which is convenient for subsequent grinding of threads.

[0003] In the prior art, a Chinese patent document with publication number CN218903314U proposes a punching device for nut production that is easy to replace a punch, including a lower die and an upper die located above the lower die, and also including a punch, a connecting piece 1, a through hole, a convex block and a connecting piece 2. The punch is detachably arranged on the lower surface of the upper die through the connecting piece 1, the through hole is opened on the lower die and is coaxial with the punch, the convex block is detachably arranged in the through hole through the connecting piece 2, and a groove matching the convex block is opened on the punch, and the clamping part is quickly detached from the punch and the supporting fixing part is quickly detached through the driving part 1 and the driving part 2. The punch and the protrusion can be separated, and the punch and the protrusion can be quickly disassembled and replaced, thereby improving the practicality of the stamping die, so that the staff can replace the punches and protrusions of different specifications to produce nuts of the required specifications. During the production process of the nuts, the stamping device operates continuously. Due to the large production volume of nuts, each time the stamping device runs to complete the stamping operation of a nut, the stamping efficiency is low, and each stamping requires a certain amount of energy. A single stamping will result in excessive energy consumption. Therefore, the present application provides a nut stamping device for screw production to meet the needs of simultaneous stamping of multiple nuts during the nut stamping process. Summary of the invention

[0004] In view of this, the purpose of the present invention is to provide a nut punching device for screw production to solve the problem of low efficiency of punching a single nut each time by the punching device.

[0005] Based on the above purpose, the present invention provides a nut punching device for screw production, comprising a machine platform, a bracket is fixed on the top of the machine platform, a punching mechanism is arranged in the middle of the bracket, a punching head is arranged at the driving end of the punching mechanism, a feeding mechanism is inserted in the upper part of the bracket, a rotary assembly is arranged inside the machine platform, a positioning assembly is arranged inside the rotary assembly, a feeding assembly is arranged on the upper part of the machine platform, a pushing assembly is arranged on the upper part of the machine platform, and a cylinder is arranged on the upper part of the machine platform;

[0006] The rotary assembly cooperates with the positioning assembly to lock the stamping parts, the unloading assembly cooperates with the positioning assembly to realize the unloading of stamping products, the pushing assembly acts below the feeding mechanism, and the cylinder is placed below the rotary assembly.

[0007] Preferably, the rotating assembly includes a motor 1 arranged inside the machine, the driving end of the motor 1 is fixedly connected to an active rod, the upper fixed sleeve of the outer surface of the active rod is provided with a special-shaped gear, the lower fixed sleeve of the outer surface of the active rod is provided with a half gear, the middle part of the machine is rotatably connected to a center column, the top of the center column is fixedly connected to a positioning material tray, and the outer surface of the center column is fixedly provided with a gear 1.

[0008] Preferably, the special-shaped gear is meshed and connected with gear one, half of the special-shaped gear is a complete tooth block and the number of tooth blocks is the same as that of gear one, the other half of the special-shaped gear is an indirect tooth block and the number of tooth blocks in each group is one quarter of that of gear one, and the positioning tray is arranged directly below the punching head.

[0009] Preferably, the positioning assembly includes a push rod inserted into the side of the positioning tray, the side of the push rod is fixedly connected to a side rod, the end of the side rod away from the push rod is hinged to a pull rod, the end of the pull rod away from the side rod is hinged to a connecting piece, the outer surface of the connecting piece is provided with a sliding rod, the connecting piece and the sliding rod both slide in a limited position inside the positioning tray, the end of the sliding rod is movably connected to a positioning plate, and the top of the positioning plate is fixedly connected to gear 2.

[0010] Preferably, a rack is provided inside the positioning tray, the gear 2 is meshed with the rack, a power spring is provided at one end of the push rod extending into the positioning tray, a strip groove is penetrated through the bottom end of the positioning tray, and the push rod slides inside the strip groove.

[0011] Preferably, a slide groove is provided on the inner wall of the strip groove, the interior of the slide groove is slidably connected to a limit block, a square hole is penetrated through the outer surface of the limit block, a return spring is provided inside the slide groove, and the return spring is arranged at the lower part of the limit block.

[0012] Preferably, the unloading assembly includes a support rod rotatably connected to the inside of the machine, a gear three is fixedly sleeved on the outer surface of the support rod, a turntable is fixedly connected to the top end of the support rod, a shift block is fixedly connected to the top edge of the turntable, a strip rod is provided on the outer surface of the shift block, and a clamp is fixedly connected to the top end of the strip rod.

[0013] Preferably, the gear three is meshingly connected with the half gear, and the number of tooth blocks of the half gear is four times that of the gear three.

[0014] Preferably, a guide groove is formed through the top of the machine platform, and the clamp slides inside the guide groove, and the clamp corresponds to the square hole.

[0015] Preferably, the pushing assembly includes a second motor arranged on the upper part of the machine platform, the driving end of the second motor is fixedly connected to a cam, a limiting groove is provided on the upper surface of the machine platform, a folding block is slidably connected inside the limiting groove, an arc plate is fixedly connected to the end of the folding block, a side groove is provided on the outer surface of the arc plate, and a buffer spring is provided inside the limiting groove.

[0016] Beneficial effects of the present invention:

[0017] 1. This type of nut punching device for screw production sets a rotary component in the middle of the machine, and uses a motor to drive the rotation of the special-shaped gear to drive the rotation of the positioning material tray. Since the tooth block distribution of the special-shaped gear will drive the continuous rotation and indirect rotation of the positioning material tray, the pushing component can push the parts to be punched into the recess for positioning. After the positioning material tray rotates one circle, each recess is locked with the parts to be punched. At this time, the punching operation can punch multiple products at one time, which improves the punching efficiency of the nuts, reduces the number of operations of the punching mechanism, and achieves the effect of energy saving.

[0018] 2. This type of nut stamping device for screw production has a positioning component set inside the positioning turntable. When the pushing component pushes the workpiece to be stamped into the positioning turntable, it will drive the push rod to move. Under the transmission of the side rod, the pull rod and the connecting piece, it will drive the positioning plate to move toward the workpiece to be stamped. At the same time, under the cooperation of gear 2 and the rack, the positioning plate is driven to rotate. When the push rod is blocked by the limit block, the positioning plate covers and locks the workpiece to be stamped, thereby achieving the effect of automatically locking the workpiece to be stamped and ensuring the stability of the workpiece to be stamped during the stamping process.

[0019] 3. The nut punching device for screw production is provided with a blanking component and a rotating component. The motor drives the rotation of the half gear to drive the support rod and the turntable to rotate. During the rotation of the turntable, the shifting block will slide inside the strip rod and push the strip rod and the clamp to do reciprocating motion. During the operation of the clamp, the limit block will be pushed downward. After the push rod loses the obstruction of the limit block, it moves under the action of the rebound force of the power spring, thereby driving the positioning plate to open and pushing the stamped product to slide onto the conveyor belt, achieving the effect of self-locking and opening and closing conversion, and realizing the purpose of indirect continuous blanking.

[0020] 4. This type of nut punching device for screw production sets a pushing component under the feeding component, and uses motor 2 to drive the cam to rotate and push the folding block to slide inside the limit groove. The movement of the folding block will push the part to be punched into the recess of the positioning tray, and the buffer spring rebounds to push the folding part to reset. The cam continues to operate to complete continuous loading, and cooperates with the positioning tray to achieve the effect of indirect continuous loading, thereby improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only for the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0023] Figure 2 It is a schematic diagram of the internal structure of the machine of the present invention;

[0024] Figure 3 It is a schematic diagram of the structure of the rotary assembly of the present invention;

[0025] Figure 4 This is a schematic diagram of the internal structure of the positioning tray of the present invention;

[0026] Figure 5 For the present invention Figure 4 The enlarged structural diagram at A in the middle;

[0027] Figure 6 This is a schematic diagram of a partial cutaway structure of a positioning tray of the present invention;

[0028] Figure 7 This is a schematic diagram of the structure of the blanking assembly of the present invention;

[0029] Figure 8 This is a schematic diagram of the push component structure of the present invention.

[0030] The markings in the figure are:

[0031] 1. Machine; 2. Bracket; 3. Punching mechanism; 4. Punching head; 5. Feeding mechanism; 601. Motor 1; 602. Active rod; 603. Special-shaped gear; 604. Half gear; 605. Center column; 606. Positioning tray; 607. Gear 1; 701. Push rod; 702. Side rod; 703. Pull rod; 704. Connector; 705. Sliding rod; 706. Positioning plate; 707. Gear 2; 708. Rack; 709. Power spring Spring; 710, strip groove; 711, limit block; 712, square hole; 713, slide groove; 714, return spring; 801, support rod; 802, gear three; 803, turntable; 804, shift block; 805, strip rod; 806, clamp; 807, guide groove; 901, motor two; 902, cam; 903, folding block; 904, arc plate; 905, side groove; 906, limit groove; 907, buffer spring; 10, cylinder. DETAILED DESCRIPTION

[0032] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with specific embodiments.

[0033] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the present invention should be understood by people with ordinary skills in the field to which the present invention belongs. The "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0034] like Figures 1 to 8 As shown, a nut punching device for screw production includes a machine 1, a bracket 2 is fixed on the top of the machine 1, a punching mechanism 3 is arranged in the middle of the bracket 2, a punching head 4 is arranged at the driving end of the punching mechanism 3, a feeding mechanism 5 is interspersed on the upper part of the bracket 2, a rotary assembly is arranged inside the machine 1, a positioning assembly is arranged inside the rotary assembly, a blanking assembly is arranged on the upper part of the machine 1, a pushing assembly is arranged on the upper part of the machine 1, a cylinder 10 is arranged on the upper part of the machine 1, the rotary assembly and the positioning assembly are used in conjunction with each other to lock the stamping part, the blanking assembly and the positioning assembly are linked to realize the blanking of the stamping product, the pushing assembly acts on the lower part of the feeding mechanism 5, and the cylinder 10 is placed below the rotary assembly;

[0035] During use of the device, the parts to be stamped are lowered from the feeding mechanism 5 onto the machine table 1, the pushing assembly drives the parts to be stamped to the stamping position, and the rotary assembly operates synchronously. In the interval of the movement of the rotary assembly, the pushing assembly just pushes the parts to be stamped into the rotary assembly and triggers the positioning assembly. The positioning assembly locks the parts to be stamped, and then the materials are loaded synchronously in the gap of the rotation of the rotary assembly, and multiple parts to be stamped are locked in the rotary assembly. Then the stamping mechanism 3 drives the punching head 4 to perform stamping operations on the parts to be stamped, and the stamped iron sheets are uniformly discharged from the cylinder 10. Finally, the unloading assembly operates, and the unloading assembly can open the positioning assembly and push the stamped products onto the conveyor belt.

[0036] like Figure 2 , Figure 3 and Figure 7 As shown, the rotary assembly includes a motor 601 arranged inside the machine 1, the driving end of the motor 601 is fixedly connected to an active rod 602, the upper outer surface of the active rod 602 is fixedly sleeved with a special-shaped gear 603, the lower outer surface of the active rod 602 is fixedly sleeved with a half gear 604, the middle part of the machine 1 is rotatably connected to a center column 605, the top of the center column 605 is fixedly connected to a positioning tray 606, the outer edge of the positioning tray 606 is provided with a plurality of notches for locking the parts to be stamped, the outer surface of the center column 605 is fixedly sleeved with a gear 607, the special-shaped gear 603 is meshed with the gear 607, half of the special-shaped gear 603 is a complete tooth block and the number of tooth blocks is the same as that of the gear 607, the other half of the special-shaped gear 603 is an indirect tooth block and the number of tooth blocks in each group is one quarter of the gear 607, and the positioning tray 606 is arranged directly below the punching head 4;

[0037] The motor 601 drives the active rod 602 to rotate, and the special-shaped gear 603 and the half gear 604 on the active rod 602 rotate synchronously. The special-shaped gear 603 meshes with the gear 607, which will drive the gear 607 and the center column 605 to rotate synchronously. The center column 605 drives the positioning tray 606 at the top to rotate. The edge of the positioning tray 606 is provided with a notch, which is convenient for the pushing component to push the part to be stamped into the notch for positioning. Since half of the special-shaped gear 603 is fully distributed with tooth blocks, and the other half is indirectly distributed with tooth blocks, when the special-shaped gear 603 drives the gear 607 to operate, the half with fully distributed tooth blocks will drive the center rod to rotate continuously. At this time, the pushing mechanism will push the material, and the special-shaped gear 603 will be turned. When half of the indirectly distributed tooth blocks are engaged with gear 607, the center rod will be driven to rotate indirectly. The number of indirectly distributed tooth blocks is one-fourth of the number of gear blocks in gear 607, that is, each time it can drive gear 607 to rotate ninety degrees, which is convenient for the unloading component to unload the positioning tray 606. After the positioning tray 606 rotates one circle, each of its recesses is locked with the parts to be stamped. At this time, the stamping mechanism 3 drives the stamping head 4 to perform stamping operations on the parts to be stamped, and multiple products can be stamped at one time, which improves the stamping efficiency of the nuts. At the same time, the stamping mechanism 3 can complete the stamping of multiple products in one operation, reducing the number of operations of the stamping mechanism 3, thereby achieving energy-saving effects and reducing product production consumption.

[0038] like Figures 3 to 6 As shown, the positioning assembly includes a push rod 701 inserted and arranged on the side of the positioning material tray 606, the side of the push rod 701 is fixedly connected to a side rod 702, the end of the side rod 702 away from the push rod 701 is hinged with a pull rod 703, the end of the pull rod 703 away from the side rod 702 is hinged with a connecting piece 704, the outer surface of the connecting piece 704 is provided with a slide bar 705, the connecting piece 704 and the slide bar 705 are both limited and slidable inside the positioning material tray 606, the end of the slide bar 705 is movably connected to a positioning plate 706, the top of the positioning plate 706 is fixedly connected to a gear 707, and the interior of the positioning material tray 606 is provided with a rack 708, and the rack 708 is arranged on the gear 707. On the inner wall of the sliding part 07, gear 2 707 is meshed with rack 708, one end of the push rod 701 extending into the positioning tray 606 is provided with a power spring 709, the other end of the power spring 709 is fixed on the inner wall of the positioning tray 606, the bottom end of the positioning tray 606 is penetrated with a strip groove 710, the push rod 701 slides inside the strip groove 710, the inner wall of the strip groove 710 is provided with a slide groove 713, the inner sliding connection of the slide groove 713 is limited to the limit block 711, the outer surface of the limit block 711 is penetrated with a square hole 712, the slide groove 713 is provided with a return spring 714, and the return spring 714 is arranged at the lower part of the limit block 711;

[0039] When the push assembly pushes the workpiece to be stamped into the groove of the positioning material tray 606, it pushes the push rod 701 to slide in the strip groove, and the push rod 701 drives the side rod 702 to slide in the positioning material tray 606. When the side rod 702 slides, it pulls the connecting piece 704 to slide horizontally through the pull rod 703. The connecting piece 704 is connected to the slide bar 705, which will drive the slide bar 705 and the positioning plate 706 to slide synchronously. When the slide bar 705 slides to a certain position, the gear 2 707 will mesh with the rack 708, which will drive the positioning plate 706 to move horizontally while moving around the slide bar 70 5 rotates, the push rod 701 slides in the strip groove and squeezes the power spring 709, and after encountering the limit block 711, it pushes the limit block 711 to slide downward, and the limit block 711 slides in the slide groove 713 and squeezes the return spring 714. After the push rod 701 passes over the limit block 711, the return spring 714 rebounds and pushes the limit block 711 to move up to lock the push rod 701. At the same time, the positioning plate 706 also covers the outer surface of the workpiece to be stamped, completing the locking function, achieving the effect of automatically locking the workpiece to be stamped, and ensuring the stability of the workpiece to be stamped during the stamping process.

[0040] like Figure 2 , Figure 6 and Figure 7 As shown, the blanking assembly includes a support rod 801 rotatably connected to the inside of the machine 1, a gear three 802 is fixedly sleeved on the outer surface of the support rod 801, a turntable 803 is fixedly connected to the top of the support rod 801, a shift block 804 is fixedly connected to the top edge of the turntable 803, a strip rod 805 is provided on the outer surface of the shift block 804, a clamp 806 is fixedly connected to the top of the strip rod 805, the gear three 802 is meshed and connected with the half gear 604, the number of teeth of the half gear 604 is four times that of the gear three 802, a guide groove 807 is opened through the top of the machine 1, the clamp 806 slides inside the guide groove 807, and the clamp 806 corresponds to the square hole 712;

[0041] During the process of the positioning material tray 606 rotating to load the material, the smooth side of the half gear 604 is close to the gear three 802. After the stamping is completed, the side of the half gear 604 with the tooth block is meshed with the gear three 802. At this time, the operation of the motor 1 601 will drive the support rod 801 to rotate, and then drive the turntable 803 to rotate. During the rotation of the turntable 803, the shift block 804 will be driven to slide inside the strip rod 805 and push the strip rod 805 to reciprocate. The clamping piece 806 will then reciprocate in the guide groove 807. When the clamping piece 806 moves forward, it will contact the limit block 711. The clamping piece 806 will push the limit block 711 to move downward, and the push rod 701 will lose the limit block. After being blocked by 711, it will quickly move to the outside of the positioning tray 606 under the push of the rebound of the power spring 709, driving the pull rod 703 to push the connecting piece 704 and then driving the positioning plate 706 to rotate outward and open, and the push rod 701 will push the stamped product to slide onto the conveyor belt. At this time, the positioning tray 606 rotates indirectly, and the positioning tray 606 will rotate ninety degrees while the clamp 806 moves backward. When the clamp 806 moves forward, the positioning tray 606 stops, and then the unloading of all products is completed. With the operation of the positioning component and the rotating component, the effect of self-locking and opening and closing conversion is achieved, and the purpose of indirect continuous unloading is realized.

[0042] like Figure 6 and Figure 8 As shown, the pushing assembly includes a second motor 901 disposed on the upper part of the machine 1, a driving end of the second motor 901 is fixedly connected to a cam 902, a limiting groove 906 is provided on the upper surface of the machine 1, a folding block 903 is slidably connected inside the limiting groove 906, an arc plate 904 is fixedly connected to the end of the folding block 903, an outer surface of the arc plate 904 is provided with a side groove 905, and a buffer spring 907 is provided inside the limiting groove 906;

[0043] When the positioning material tray 606 completes unloading, the motor 901 will run and drive the cam 902 to rotate. During the rotation, the cam 902 will push the folding block 903 to slide inside the limit groove 906 and squeeze the buffer spring 907. The folding block 903 moves and drives the arc plate 904 to push the part to be stamped to move until the part to be stamped is pushed into the recess of the positioning material tray 606. When the positioning plate 706 locks the part to be stamped, it will be stuck in the side groove 905 of the arc plate 904 to avoid the contact between the two and cause the conflict of movement. At this time, the cam 902 is away from the folding block 903, and the buffer spring 907 rebounds to push the folding part to reset. The cam 902 continues to operate to complete continuous loading, and cooperates with the positioning material tray 606 to achieve the effect of indirect continuous loading, thereby improving production efficiency.

[0044] Those skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples. Under the concept of the present invention, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity.

[0045] The present invention is intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A nut punching device for screw production, characterized in that: include: A machine (1), a bracket (2) is fixed on the top of the machine (1), a punching mechanism (3) is arranged in the middle of the bracket (2), a punching head (4) is arranged at the driving end of the punching mechanism (3), a feeding mechanism (5) is inserted into the upper part of the bracket (2), a rotary assembly is arranged inside the machine (1), a positioning assembly is arranged inside the rotary assembly, a material discharge assembly is arranged on the upper part of the machine (1), a pushing assembly is arranged on the upper part of the machine (1), and a cylinder (10) is arranged on the upper part of the machine (1); The rotary assembly cooperates with the positioning assembly to lock the stamping part, the unloading assembly cooperates with the positioning assembly to realize the unloading of the stamping product, the pushing assembly acts below the feeding mechanism (5), and the cylinder (10) is placed below the rotary assembly.

2. The nut punching device for screw production according to claim 1, characterized in that: The rotary assembly comprises a motor 1 (601) arranged inside the machine (1); the driving end of the motor 1 (601) is fixedly connected to an active rod (602); the upper part of the outer surface of the active rod (602) is fixedly sleeved with a special-shaped gear (603); the lower part of the outer surface of the active rod (602) is fixedly sleeved with a half gear (604); the middle part of the machine (1) is rotatably connected to a center column (605); the top end of the center column (605) is fixedly connected to a positioning material tray (606); and the outer surface of the center column (605) is fixedly sleeved with a gear 1 (607).

3. The nut punching device for screw production according to claim 2, characterized in that: The special-shaped gear (603) is meshed with gear one (607), half of the special-shaped gear (603) is a complete tooth block and the number of tooth blocks is the same as that of gear one (607), the other half of the special-shaped gear (603) is an indirect tooth block and the number of tooth blocks in each group is one quarter of that of gear one (607), and the positioning material tray (606) is arranged directly below the punching head (4).

4. The nut punching device for screw production according to claim 3, characterized in that: The positioning assembly includes a push rod (701) inserted into the side of the positioning material tray (606), the side of the push rod (701) is fixedly connected to a side rod (702), the end of the side rod (702) away from the push rod (701) is hinged with a pull rod (703), the end of the pull rod (703) away from the side rod (702) is hinged with a connecting piece (704), the outer surface of the connecting piece (704) is provided with a sliding rod (705), the connecting piece (704) and the sliding rod (705) both slide in a limited position inside the positioning material tray (606), the end of the sliding rod (705) is movably connected to a positioning plate (706), and the top of the positioning plate (706) is fixedly connected to a gear 2 (707).

5. The nut punching device for screw production according to claim 4, characterized in that: A rack (708) is arranged inside the positioning material tray (606), and the second gear (707) is meshed with the rack (708). One end of the push rod (701) extending into the positioning material tray (606) is provided with a power spring (709). A strip groove (710) is opened through the bottom end of the positioning material tray (606), and the push rod (701) slides inside the strip groove (710).

6. The nut punching device for screw production according to claim 5, characterized in that: The inner wall of the strip groove (710) is provided with a sliding groove (713), the interior of the sliding groove (713) is slidably connected to a limiting block (711), the outer surface of the limiting block (711) is penetrated by a square hole (712), the interior of the sliding groove (713) is provided with a return spring (714), and the return spring (714) is arranged at the lower part of the limiting block (711).

7. The nut punching device for screw production according to claim 6, characterized in that: The unloading assembly comprises a support rod (801) rotatably connected to the inside of the machine platform (1); a gear three (802) is fixedly sleeved on the outer surface of the support rod (801); a turntable (803) is fixedly connected to the top end of the support rod (801); a shift block (804) is fixedly connected to the top edge of the turntable (803); a strip rod (805) is provided on the outer surface of the shift block (804); and a clamp (806) is fixedly connected to the top end of the strip rod (805).

8. The nut punching device for screw production according to claim 7, characterized in that: The gear three (802) is meshedly connected with the half gear (604), and the number of tooth blocks of the half gear (604) is four times that of the gear three (802).

9. The nut punching device for screw production according to claim 8, characterized in that: A guide groove (807) is provided through the top of the machine platform (1), and the clamping member (806) slides inside the guide groove (807), and the clamping member (806) corresponds to the square hole (712).

10. The nut punching device for screw production according to claim 9, characterized in that: The pushing assembly comprises a second motor (901) arranged on the upper part of the machine platform (1), the driving end of the second motor (901) is fixedly connected to a cam (902), a limiting groove (906) is provided on the upper surface of the machine platform (1), a folding block (903) is slidably connected inside the limiting groove (906), an arc plate (904) is fixedly connected at the end of the folding block (903), an outer surface of the arc plate (904) is provided with a side groove (905), and a buffer spring (907) is provided inside the limiting groove (906).

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