Electrically powered tool for stacking round goods

Abstract

This invention relates to the field of forklift technology and discloses an electric stacking attachment for round goods, including a fork carriage, a load-bearing guide rod installed inside the fork carriage, fork arms inside the fork carriage, self-lubricating copper sleeves installed on the sides of the fork arms, a lead screw drive motor installed inside the fork carriage, a reduction gearbox connected to the lower side of the lead screw drive motor, the output ends of the left and right sides of the reduction gearbox being connected to the inner ends of the transmission lead screw, a transmission nut installed inside the fork arm being connected to the transmission lead screw, an automatic limit switch installed inside the fork carriage being electrically connected to the forklift controller, and a V-shaped groove opened at the end of the fork arm away from the fork carriage, with support blocks fixedly installed on the front and rear walls of the V-shaped groove. This invention improves the positioning accuracy of the forks through the configuration of the fork arms and the transmission lead screw, while eliminating the need for pallets and avoiding increased material costs for enterprises.

Description

Technical Field

[0001] This invention relates to the field of forklift technology, specifically to an electric attachment for stacking round goods. Background Technology

[0002] Forklifts are industrial handling vehicles, referring to various wheeled handling vehicles used for loading, unloading, stacking, and short-distance transportation of palletized goods. The International Organization for Standardization (ISO / TC110) refers to them as industrial vehicles. They are commonly used for transporting large items in warehouses and are usually powered by fuel engines or batteries.

[0003] Adjustable forklift attachments are auxiliary equipment for forklifts. Before picking up goods, the forklift operator controls the spacing between the forks according to the width of the fork holes on the goods or pallet, making it easier for the forks to pick up goods. This eliminates the need for manual adjustment of the fork arm width, greatly reducing the operator's workload, simplifying the use of the forklift, and improving work efficiency. Forklifts with adjustable forklift attachments are widely used in loading, unloading, storage, handling, and stacking operations in machinery manufacturing, pharmaceutical industry, supermarkets, food lifting warehouses, cold storage facilities, and other similar locations.

[0004] Existing adjustable fork attachments on the market all use double-acting hydraulic cylinders to drive the forks to move left and right to achieve the adjustable fork distance function. Since the medium for achieving this function is hydraulic oil and the actuation mechanism is a hydraulic cylinder, in actual use, the hydraulic system suffers from large pressure loss and large pressure fluctuations, resulting in large action errors and unstable speed. In addition, the above structure requires the addition of multi-way valves and pipelines, which are prone to oil leakage and seepage problems during long-term use. Moreover, when using existing forks, the goods need to be placed on pallets, and the goods can be picked up, stacked and transferred by picking up the pallets. For some cylindrical goods, special pallets are also required, which increases the material costs for enterprises. Summary of the Invention

[0005] In view of the shortcomings of existing attachments mentioned in the background art during use, the present invention provides an electric stacking attachment for round goods, which has the advantages of directly picking up rolled goods or bar materials and high fork positioning accuracy, thus solving the technical problems mentioned in the background art.

[0006] This invention provides the following technical solution: an electric stacking attachment for round goods, including a fork carriage. Load-bearing guide rods are fixedly installed on both the upper and lower sides inside the fork carriage. Fork arms are provided on both the left and right sides inside the fork carriage. Self-lubricating copper sleeves are fixedly installed on the sides of the fork arms corresponding to the positions of the load-bearing guide rods. The self-lubricating copper sleeves are slidably connected to the load-bearing guide rods. A lead screw drive motor is fixedly installed in the middle position inside the fork carriage. A reduction gearbox is driven and connected to the lower position of the lead screw drive motor. The output ends on both sides of the reduction gearbox are fixedly connected to the inner ends of two transmission lead screws. The outer end of the transmission lead screw is rotatably connected to the inner wall of the fork carriage. The threaded grooves on the surfaces of the two transmission lead screws are arranged in opposite directions. A transmission nut is fixedly installed in the middle position inside the fork arm. The transmission nut is threadedly connected to the transmission lead screw. Automatic limit switches are installed on both sides of the fork arm inside the fork carriage. The automatic limit switches are electrically connected to the forklift controller. When the fork arm contacts the automatic limit switch, the lead screw drive motor stops working. A V-shaped groove is opened on the end of the fork arm away from the fork carriage. Support blocks are fixedly installed on the front and rear walls of the V-shaped groove.

[0007] Preferably, the fork arm has a groove inside, the bottom surface of the groove is inclined from front to back, a slider is slidably installed on the front side of the bottom surface of the groove, and the V-shaped groove is formed on the slider.

[0008] Preferably, an extrusion member is installed on the rear side of the slider, and an air cavity is opened inside the fork arm near the extrusion member. The extrusion member and the air cavity are slidably connected. An elastic member is sleeved on the outer circumferential side of the extrusion member. The elastic member connects the rear side of the slider to the inner rear wall of the groove.

[0009] Preferably, the bottom surface of the slider is equidistantly fitted with ball bearings from front to back to reduce the friction between the slider and the groove.

[0010] Preferably, the extrusion member and the air cavity form a sealed sliding connection. A slot is provided inside the fork arm at the lower side of the slide groove. A locking block is movably engaged in the slot. The locking block is located at the front side of the slider. An air bladder is provided inside the fork arm at the front side of the slot. The rear end of the air bladder contacts the front side of the locking block. An air guide hole is provided inside the fork arm at the lower side of the slot to connect the inner cavity of the air bladder and the air cavity. The longitudinal cross-sectional area of ​​the air cavity is larger than the longitudinal cross-sectional area of ​​the air bladder.

[0011] Preferably, a rotating groove is provided on the rear side of the slider, and the front end of the extruder is rotatably connected to the rotating groove. The distance from the upper inner wall of the rotating groove to the extruder is greater than the distance from the lower inner wall of the rotating groove to the extruder, so that the slider can rotate upward along the hinge point between the extruder and the rotating groove. Telescopic cavities are provided on both the front and rear sides of the V-shaped groove inside the slider, and a support block is slidably installed in the telescopic cavity. A deflection cavity is provided on the lower side of the telescopic cavity inside the slider, and a translation cavity is provided on the lower side of the V-shaped groove inside the slider. The telescopic cavity is connected to the translation cavity through the deflection cavity. A translation component is slidably installed in the middle of the translation cavity, and a connecting rod is provided in the deflection cavity. The connecting rod connects the support block and the translation component.

[0012] Preferably, a fitting groove is provided inside the slider near the card block, the card block contacts the wall of the fitting groove, and a toggle member is rotatably installed inside the card block corresponding to the fitting groove. A second elastic member is fixedly installed between the lower surface of the rear section of the toggle member and the card block. A connecting rope is installed inside the card block and inside the slider, and the connecting rope connects the rear side of the translation member and the lower surface of the front section of the toggle member.

[0013] The present invention has the following beneficial effects:

[0014] 1. This invention utilizes the configuration of the fork arm and the transmission screw. By rotating the transmission screw, the fork arm can slide left and right along the load guide rod, thereby completing the fork arm's distance adjustment function. The above structure does not require the use of hydraulic oil for transmission operations, thus eliminating fluid pressure loss and improving the positioning accuracy of the forks. At the same time, since the fork arm has a V-shaped groove at its front end, it can directly fork the fixed rod of the rolled goods or the surface of the bar material through the V-shaped groove. Through the above actions, there is no need to use a pallet, avoiding increased material costs for enterprises.

[0015] 2. This invention, through the setting of the chute and the slider, allows the forklift to lift the goods. Because the bottom surface of the chute is inclined, the goods move the slider towards the forklift. Through this action, the center of gravity of the goods moves synchronously towards the forklift, preventing the distance between the center of gravity of the goods and the forklift from being too far, which could cause the forklift to tip over and affect the handling efficiency. At the same time, when the goods move the slider to the limit position, part of the weight of the goods will be applied to the forklift along the bottom surface of the chute. Through this action, the impact of the chute on the overall mechanical performance of the forklift can be compensated to a certain extent, reducing the probability of forklift breakage.

[0016] 3. The present invention, through the setting of the extrusion member and the clamping block, allows the extrusion member to move synchronously during the movement of the slider and extrude the gas in the air chamber. This gas drives the airbag to push the clamping block to move. Then, when the slider moves to the limit position, the clamping block will cooperate with the fork arm to clamp the slider, thereby preventing the goods from causing the slider to shake when the forklift is handling the goods, which would affect the stability of the goods during handling.

[0017] 4. By setting up the actuating component and connecting rope, when the slider moves to the limit position, the slider and the pressing component will hit the fork arm, thereby causing the goods to be subjected to a counter-shock force. This counter-shock force pulls the connecting rope, thereby causing the actuating component to apply a towing force to the slider, causing the slider to deflect. The deflection force thereby offsets the counter-shock force on the goods to a certain extent, reducing the probability of the goods falling out of the V-groove. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the internal structure of the fork frame in Embodiment 1 of the present invention;

[0019] Figure 2 This is a schematic diagram of the internal structure of the chute in Embodiment 1 of the present invention;

[0020] Figure 3 This is a schematic diagram of the internal structure of the fork arm in Embodiment 1 of the present invention;

[0021] Figure 4 This is a schematic diagram showing the connection state between the transfer groove and the extrusion piece in Embodiment 2 of the present invention;

[0022] Figure 5 This is a schematic diagram of the internal structure of the slider and the card block in Embodiment 2 of the present invention;

[0023] Figure 6 For the present invention Figure 5 A magnified view of the structure at point A in the middle.

[0024] In the diagram: 1. Fork frame; 2. Load-bearing guide rod; 3. Fork arm; 4. Self-lubricating copper bushing; 5. Screw drive motor; 6. Gearbox; 7. Transmission screw; 8. Transmission nut; 9. Automatic limit switch; 10. Support block; 11. Slide groove; 12. Slider; 13. Extrusion component; 14. Air chamber; 15. Elastic component No. 1; 16. Ball bearing; 17. Slot; 18. Locking block; 19. Airbag; 20. Air vent; 21. Rotary groove; 22. Telescopic chamber; 23. Deflection chamber; 24. Translation chamber; 25. Translation component; 26. Connecting rod; 27. Actuating component; 28. Elastic component No. 2; 29. ​​Connecting rope. Detailed Implementation

[0025] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0026] Example 1

[0027] Please see Figure 1 An electric stacking attachment for round goods includes a fork carriage 1, which is mounted inside the mast of a forklift (existing technology). Load-bearing guide rods 2 are welded to the upper and lower sides of the fork carriage 1. Fork arms 3 are provided on the left and right sides of the fork carriage 1. Self-lubricating copper sleeves 4 are fixedly installed on the fork arms 3 corresponding to the positions of the load-bearing guide rods 2, forming a sliding connection between the self-lubricating copper sleeves 4 and the load-bearing guide rods 2. A lead screw drive motor 5 is fixedly installed in the middle position inside the fork carriage 1. A reduction gearbox 6 is fixedly installed on the lower side of the lead screw drive motor 5, forming a transmission connection between the lead screw drive motor 5 and the reduction gearbox 6. The output ends on both sides of the reduction gearbox 6 are fixedly connected to the inner ends of transmission lead screws 7. The outer ends of the transmission lead screws 7 pass through the fork arms 3 and form a rotatable connection with the inner wall of the fork carriage 1. The thread grooves on the surfaces of the two transmission lead screws 7 are arranged in opposite directions. A transmission nut 8 is fixedly installed in the middle position inside the fork arms 3, forming a threaded connection between the transmission nut 8 and the transmission lead screw 7. Automatic limit switches 9 are installed on both sides of the fork arm 3 inside the frame 1. The automatic limit switches 9 are electrically connected to the forklift controller (existing technology). When the fork arm 3 contacts the automatic limit switch 9, the screw drive motor 5 stops working. A V-shaped groove is opened on the end of the fork arm 3 away from the fork carriage 1. Support blocks 10 are welded to the front and rear walls of the V-shaped groove. Before handling goods, the screw drive motor 5 and the reduction gearbox 6 drive the transmission screw 7 to rotate, thereby causing the fork arm 3 to slide left and right along the load guide rod 2, thus completing the adjustment of the fork arm 3. The above structure does not require the use of hydraulic oil to realize the transmission operation, thus eliminating the liquid pressure loss and improving the positioning accuracy of the forks. At the same time, since the front end of the fork arm 3 is provided with a V-shaped groove, the fixed rod or bar material surface of the rolled goods can be directly forked through the V-shaped groove. Through the above actions, the pallet is not needed, thus avoiding increasing the company's material costs.

[0028] Please see Figure 2The fork arm 3 has a groove 11 inside, and the bottom surface of the groove 11 is inclined from front to back. A slider 12 is slidably installed on the front side of the bottom surface of the groove 11. A V-shaped groove is opened on the slider 12. When the fork arm 3 lifts the goods, the weight of the goods causes the slider 12 to slide towards the fork 1. Through the above action, the center of gravity of the goods moves towards the fork 1 simultaneously, avoiding the distance between the center of gravity of the goods and the fork 1, which would cause the forklift to tip over when handling goods, thus affecting the handling efficiency. At the same time, when the goods drive the slider 12 to slide to the limit position, part of the weight of the goods will be applied to the fork arm 3 along the bottom surface of the groove 11. Through the above action, the influence of the groove 11 inside the fork arm 3 on the overall mechanical performance of the fork arm 3 is compensated to a certain extent, reducing the probability of the fork arm 3 breaking.

[0029] Please see Figure 3 An extrusion member 13 is welded to the rear side of the slider 12. An air cavity 14 is provided inside the fork arm 3 near the extrusion member 13. The extrusion member 13 and the air cavity 14 are slidably connected. An elastic member 15 is sleeved on the outer circumferential side of the extrusion member 13. The front end of the elastic member 15 is connected to the rear side of the slider 12, and the rear end of the elastic member 15 is connected to the inner rear wall of the slide groove 11. The shape of the extrusion member 13 can be set as a cylinder or a cuboid. By setting the extrusion member 13, the movement path of the slider 12 is limited, and the slider 12 is prevented from disengaging from the slide groove 11.

[0030] The bottom surface of the slider 12 is equidistantly fitted with ball bearings 16 from front to back. By setting the ball bearings 16, the friction between the slider 12 and the groove 11 and the influence of the slider 12's movement distance are reduced, so that the center of gravity of the goods can move fully towards the forklift 1.

[0031] Please see Figure 3The extrusion member 13 and the air chamber 14 form a sealed sliding connection (similar to the connection between a hydraulic cylinder and a piston in the prior art). A slot 17 is provided inside the fork arm 3 at the lower side of the slide groove 11, and a locking block 18 is movably engaged in the slot 17. The locking block 18 is located at the front side of the slider 12. An air bladder 19 is provided inside the fork arm 3 at the front side of the slot 17, with the rear end of the air bladder 19 contacting the front side of the locking block 18. An air guide hole 20 is provided inside the fork arm 3 at the lower side of the slot 17, with the front end of the air guide hole 20 contacting the inner surface of the air bladder 19. The cavity is connected, and the rear end of the air guide hole 20 is connected to the air cavity 14. The longitudinal cross-sectional area of ​​the air cavity 14 is larger than that of the air bladder 19. During the movement of the slider 12, the extruder 13 will squeeze the gas in the air cavity 14, so that the gas will drive the air bladder 19 to extend through the air guide hole 20. The extended air bladder 19 pushes the locking block 18 to move. Then, when the slider 12 moves to the limit position, the locking block 18 and the rear side wall of the slide groove 11 will clamp the slider 12 together, thereby preventing the goods from causing the slider 12 to shake when the forklift is handling the goods, which would affect the stability of the goods handling.

[0032] A sealing ring can be used to achieve a sealed sliding connection between the extrusion part 13 and the inner wall of the air chamber 14. When the seal fails, it can be reused by replacing the sealing ring.

[0033] The method of using (working principle) of this invention is as follows:

[0034] During operation, the lead screw drive motor 5 is first activated, which in turn causes the reduction gearbox 6 to rotate the transmission lead screw 7, allowing the fork arms 3 on both sides to slide left and right within the fork carriage 1, adjusting the distance between them. Once the distance is adjusted, the lead screw drive motor 5 is turned off. Then, the forklift (existing technology) drives the fork arms 3 to contact the rolled goods, and the V-groove of the fork arms 3 contacts the lower side of the goods fixing rod. Afterward, the fork carriage 1 is moved upward, causing the goods to leave the ground. Once the goods leave the ground, they will cause the slider 12 and the pressing element 13 to move towards the fork carriage 1, gradually bringing the center of gravity of the goods closer to the fork carriage 1. Then, the moving pressing element 13 gradually extends into the air chamber 14, while the slider... The rear side wall of slide 11 and slide 12 together compress the first elastic element 15. During the process of the extrusion element 13 extending into the air chamber 14, the gas in the air chamber 14 will enter the inner cavity of the air bag 19 through the air guide hole 20, causing the air bag 19 to extend and push the locking block 18 to move towards the fork carriage 1. Then, when the slider 12 moves to the limit position, the locking block 18 and the rear side wall of slide 11 together clamp the slider 12 to prevent the goods from causing the slider 12 to shake. Then, after the forklift moves the goods to the designated position, the fork carriage 1 is lowered so that the goods re-contact the ground. Then, the fork arm 3 is removed from the goods. At this time, the first elastic element 15 releases its elastic force, so that the above structure is reset. This is one working cycle.

[0035] Example 2

[0036] Unlike Example 1, please refer to Figures 4-6 A rotating groove 21 is provided on the rear side of the slider 12. The front end of the extruder 13 is rotatably connected to the rotating groove 21. The distance from the upper inner wall of the rotating groove 21 to the extruder 13 is greater than the distance from the lower inner wall of the rotating groove 21 to the extruder 13, allowing the slider 12 to rotate upward along the hinge point between the extruder 13 and the rotating groove 21. Telescopic cavities 22 are provided on both the front and rear sides of the V-shaped groove inside the slider 12. A support block 10 is slidably installed in the telescopic cavity 22. A deflection cavity 23 is provided on the lower side of the telescopic cavity 22 inside the slider 12. A translation cavity 24 is provided on the lower side of the V-shaped groove inside the slider 12. The telescopic cavity 22 is connected to the translation cavity 24 through the deflection cavity 23. A translation component 25 is slidably installed in the middle of the translation cavity 24. A connecting rod 26 is provided, with its longitudinal end hinged to the side of the support block 10 facing away from the V-shaped groove, and its lateral end hinged to the translation member 25. When the cargo moves the slider 12 backward, the pressure exerted by the cargo on the rear support block 10 is greater than the pressure exerted on the front support block 10. Then, when the slider 12 moves to its limit position, the slider 12 and the pressing member 13 will collide with the fork arm 3, thereby causing the cargo to be subjected to a forward reaction force along the bottom surface of the slide groove 11. This makes the pressure exerted by the cargo on the front support block 10 greater than the pressure exerted on the rear support block 10. Through the change of the above forces, the connecting rod 26 drives the translation member 25 to move forward. The above structure provides power support for the realization of subsequent functions.

[0037] Please see Figure 5 and Figure 6 A fitting groove is provided inside the slider 12 near the locking block 18. The locking block 18 contacts the wall of the fitting groove. A toggle member 27 is rotatably installed inside the locking block 18 corresponding to the fitting groove. The length of the front section of the toggle member 27 is greater than the length of the rear section of the toggle member 27. A second elastic member 28 is fixedly installed between the lower surface of the rear section of the toggle member 27 and the locking block 18. A connecting rope 29 (such as a steel wire rope in the prior art) is installed inside the locking block 18 and the slider 12. The rear end of the connecting rope 29 is fixedly connected to the rear side of the translation member 25, and the front end of the connecting rope 29 is fixedly connected to the lower surface of the front section of the toggle member 27. The forward-moving translation member 25 pulls the connecting rope 29, thereby causing the rear section of the toggle member 27 to apply a toggle force to the slider 12, causing the slider 12 to deflect upward. Through the deflection force, the reaction force on the goods is offset to a certain extent, reducing the probability of the goods falling out of the V-shaped groove.

[0038] The method of using (working principle) of this invention is as follows:

[0039] After the slider 12 and the pressing member 13 move to their extreme positions, they will impact the fork arm 3, thereby generating a forward reaction force along the bottom surface of the slide groove 11. This reaction force is transmitted to the cargo, causing the cargo to exert further pressure on the support block 10 at the front position. At this time, the pressure exerted by the cargo on the support block 10 at the rear position decreases. Through the above actions, the connecting rod 26 at the front position pulls the translation member 25 forward, while the connecting rod 26 at the rear position pushes the translation member 25 forward, causing the translation member 25 to move forward and tighten the connecting rope 29. 29 drives the front section of the actuating member 27 to deflect downward, which in turn causes the rear section of the actuating member 27 to deflect upward and stretch the second elastic member 28. Then, the upwardly deflected rear section applies an upward actuating force to the front of the slider 12, causing the slider 12 to deflect upward and offset the reaction force on the cargo to a certain extent. After that, when the reaction force disappears, the pressure of the cargo on the front and rear support blocks 10 is restored, causing the connecting rod 26 on the front and rear sides to drive the translation member 25 back to the initial position. Then, the second elastic member 28 releases its elastic force and drives the actuating member 27 to reset.

[0040] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0041] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An electric stacking attachment for round goods, comprising a forklift (1), characterized in that: Load-bearing guide rods (2) are fixedly installed on both the upper and lower sides inside the fork frame (1). Fork arms (3) are provided on both the left and right sides inside the fork frame (1). Self-lubricating copper sleeves (4) are fixedly installed on the sides of the fork arms (3) corresponding to the positions of the load-bearing guide rods (2). The self-lubricating copper sleeves (4) and the load-bearing guide rods (2) are slidably connected. A lead screw drive motor (5) is fixedly installed in the middle position inside the fork frame (1). A reduction gearbox (6) is driven and connected to the lower position of the lead screw drive motor (5). The output ends of the left and right sides of the reduction gearbox (6) are fixedly connected to the inner ends of the transmission lead screws (7). There are two transmission lead screws (7). The outer ends of the transmission lead screws (7) are connected to the fork frame (1). The inner wall forms a rotating connection, and the thread grooves on the surfaces of the two transmission screws (7) are arranged in opposite directions. A transmission nut (8) is fixedly installed in the middle position inside the fork arm (3). The transmission nut (8) and the transmission screw (7) form a threaded connection. Automatic limit switches (9) are installed on both the left and right sides of the fork arm (3) inside the fork frame (1). The automatic limit switches (9) are electrically connected to the controller of the forklift. When the fork arm (3) contacts the automatic limit switch (9), the screw drive motor (5) stops working. A V-shaped groove is opened on the fork arm (3) at the end away from the fork frame (1). Support blocks (10) are fixedly installed on the front and rear walls of the V-shaped groove. An extrusion member (13) is installed on the rear side of the slider (12). An air chamber (14) is opened inside the fork arm (3) near the extrusion member (13). The extrusion member (13) and the air chamber (14) form a sliding connection. A first elastic member (15) is sleeved on the outer circumferential side of the extrusion member (13). The first elastic member (15) connects the rear side of the slider (12) to the rear inner wall of the slide groove (11). The extrusion member (13) and the air chamber (14) form a sealed sliding connection. An air chamber (14) is opened inside the fork arm (3) at the lower side of the slide groove (11). A slot (17) is provided, in which a locking block (18) is movably engaged. The locking block (18) is located in front of the slider (12). An airbag (19) is provided inside the fork arm (3) in front of the slot (17). The rear end of the airbag (19) contacts the front side of the locking block (18). An air guide hole (20) is provided inside the fork arm (3) in the lower part of the slot (17) to connect the inner cavity of the airbag (19) with the air chamber (14). The longitudinal cross-sectional area of ​​the air chamber (14) is larger than that of the airbag (19).

2. The electric attachment for stacking round goods according to claim 1, characterized in that: The fork arm (3) has a sliding groove (11) inside. The bottom surface of the sliding groove (11) is inclined from front to back. A slider (12) is slidably installed on the front side of the bottom surface of the sliding groove (11). The V-shaped groove is opened on the slider (12).

3. The electric attachment for stacking round goods according to claim 2, characterized in that: The bottom surface of the slider (12) is equidistantly fitted with balls (16) from front to back to reduce the friction between the slider (12) and the groove (11).

4. The electric stacking attachment for round goods according to claim 1, characterized in that: A rotating groove (21) is provided on the rear side of the slider (12). The front end of the extruder (13) is rotatably connected to the rotating groove (21). The distance from the upper inner wall of the rotating groove (21) to the extruder (13) is greater than the distance from the lower inner wall of the rotating groove (21) to the extruder (13), so that the slider (12) can rotate upward along the hinge point between the extruder (13) and the rotating groove (21). Telescopic cavities (22) are provided on both the front and rear sides of the V-shaped groove inside the slider (12). The slider slides in the telescopic cavities (22). A support block (10) is installed. A deflection cavity (23) is provided inside the slider (12) at the lower side of the telescopic cavity (22). A translation cavity (24) is provided inside the slider (12) at the lower side of the V-shaped groove. The telescopic cavity (22) is connected to the translation cavity (24) through the deflection cavity (23). A translation component (25) is slidably installed in the middle of the translation cavity (24). A connecting rod (26) is provided in the deflection cavity (23). The connecting rod (26) connects the support block (10) and the translation component (25).

5. The electric attachment for stacking round goods according to claim 4, characterized in that: The slider (12) has a fitting groove inside near the card block (18). The card block (18) contacts the wall of the fitting groove. The card block (18) has a toggle (27) rotatably installed inside the card block (18) at the position corresponding to the fitting groove. The lower surface of the rear section of the toggle (27) and the card block (18) are fixedly installed together with a second elastic element (28). The card block (18) and the slider (12) are both installed with a connecting rope (29). The connecting rope (29) connects the rear side of the translation component (25) and the lower surface of the front section of the toggle (27).

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