Stacking equipment for phosphor copper ball packaging
By designing a phosphorus copper ball packaging and placement device combining rodless cylinders, rotating mechanisms and pushing mechanisms, the problems of high cost of robotic arms and high manual handling work intensity in the prior art are solved, and automatic placement is realized, reducing costs and work intensity.
Patent Information
- Application Number
- CN202411601738.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-11
- Publication Date
- 2025-03-04
AI Technical Summary
The existing phosphorus copper balls are packed and placed after packaging, mostly automatic stacking or manual handling of robotic arms. The cost of robotic arms is high and the area occupies a large area. Manual transport is very strong, which can easily lead to fatigue.
A small area and low cost of phosphorus copper ball packaging is designed to achieve automated stacking operation using a combination of rodless cylinder, rotating mechanism and pushing mechanism.
It realizes the automatic placement of phosphorus copper ball packaging boxes, reduces the equipment footprint and use cost, reduces the working intensity of manual handling, and improves work efficiency and safety.
Smart Images
Figure CN119551283A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of phosphor bronze ball packaging, and in particular to a stacking device for phosphor bronze ball packaging. Background Art
[0002] Phosphor copper balls, also known as phosphor copper anode balls, are an electroplating material. As the basic raw material for making circuit boards, phosphor copper balls are widely used in printed circuit and hardware industries. Phosphor copper balls are mostly packaged in cartons. The packaged phosphor copper balls need to be stacked. Stacking cartons can save space and facilitate subsequent transportation. At present, there are generally two ways to stack the phosphor copper balls after packaging. The first is to use a robotic arm for automatic stacking, but the robotic arm operation, occupation of space, and high cost of use, the second is to stack by manual handling, and phosphor copper balls as metal materials have a certain weight. Manual handling for a long time is labor-intensive and labor is easily fatigued.
[0003] In order to solve the above problems, we propose a stacking device for phosphor bronze ball packaging which has a small footprint and low use cost. Summary of the invention
[0004] In order to overcome the shortcomings of high cost of stacking phosphor bronze balls by instrument arms and high work intensity of manually carrying phosphor bronze balls, the present invention provides a stacking device for phosphor bronze ball packaging which occupies a small area and has low use cost.
[0005] The technical implementation scheme of the present invention is: a stacking device for packaging phosphor bronze balls, including a mounting seat, a rodless cylinder, a mounting plate, a first slider, a first spring, a placement plate, a button, a rotating mechanism and a pushing mechanism. A rodless cylinder is connected to the upper side of the mounting seat, a mounting plate is slidably connected to the rodless cylinder, a first slider is slidably connected to the mounting plate, a first spring is connected between the first slider and the mounting plate, a placement plate is rotatably connected to the first slider, a button is connected to the lower part of the mounting plate, the button is electrically connected to the rodless cylinder, the placement plate moves downward and contacts the button, a rotating mechanism is provided between the mounting seat and the placement plate, the rotating mechanism is used to control the rotation of the placement plate for reversing, and a pushing mechanism is provided on the right side of the mounting seat for pushing the packaging box containing phosphor bronze balls backwards.
[0006] Optionally, the rotating mechanism includes a strip plate, a contact plate and a first torsion spring. The strip plate is connected to the lower right part of the mounting seat, the contact plate is connected to the rear of the placement plate, the contact plate moves to the right to contact the strip plate, and the first torsion spring is connected between the contact plate and the first slider.
[0007] Optionally, the pushing mechanism includes a rotating shaft, a pushing plate, a second torsion spring, a gear, a telescopic rod, a square plate and a rack. The rotating shaft is rotatably connected to the right side of the mounting seat, the pushing plate is connected to the rotating shaft, the second torsion spring is connected between the pushing plate and the mounting seat, the lower part of the rotating shaft is connected to the telescopic rod, the lower part of the right side of the mounting seat is connected to the telescopic rod, the left end of the telescopic rod is connected to the square plate, the placement plate moves to the right and contacts the square plate, the rear of the square plate is connected to a rack, and the rack is meshed with the gear.
[0008] Optionally, a protective mechanism for supporting and protecting a packaging box containing phosphor bronze balls is also included, the protective mechanism including a support frame, a cross plate and a protective plate, the support frame is connected to the lower rear side of the mounting seat, the support frame is connected to the cross plate, and the protective plate is slidably connected to the cross plate.
[0009] Optionally, it also includes a pushing mechanism for pushing the packaging box containing phosphor bronze balls to the right, the pushing mechanism including a sliding plate, a sliding rod, a pushing plate, a second spring and a connecting plate, the right portion of the rear side of the mounting seat is slidably connected to the sliding plate, the first sliding block moves to the left and contacts the sliding plate, the upper portion of the rear side of the mounting seat is slidably connected to the sliding rod, the right portion of the sliding rod is connected to the pushing plate, the second spring is connected between the pushing plate and the mounting seat, the lower portion of the rear side of the mounting seat is rotatably connected to the connecting plate, the lower portion of the sliding plate contacts the left portion of the connecting plate, and the right portion of the connecting plate is slidably connected to the lower portion of the pushing plate.
[0010] Optionally, a fixing mechanism for fixing the position of the protective plate is also included, the fixing mechanism includes a third spring, a pressure plate and a fourth spring, the third spring is connected between the left part of the protective plate and the mounting seat, the pressure plate is slidably connected to the cross plate, and two fourth springs are connected between the pressure plate and the cross plate.
[0011] Optionally, a limiting mechanism for limiting the packaging box is also included, the limiting mechanism includes a second slider, a fifth spring and a limiting plate, the second slider is slidably connected to the rear of the placement plate, the fifth spring is connected between the second slider and the placement plate, and the upper part of the second slider is connected to the limiting plate.
[0012] Optionally, both the left and right parts of the lower part of the protective plate are provided with a plurality of slots that cooperate with the pressure plate.
[0013] The present invention has the following advantages: 1. The packaging box is placed on the placement plate for loading. After a certain amount of phosphor bronze balls are loaded, the rodless cylinder can control the placement plate to move to the right, and the placement plate can be rotated to the right through the cooperation of the strip plate and the contact plate, and the push plate can rotate backward to push the phosphor bronze ball packaging box backward for stacking.
[0014] 2. When the phosphor-bronze ball packaging box pushed backward moves to the horizontal plate, the phosphor-bronze ball packaging box is supported by the horizontal plate, and the protective plate can protect the phosphor-bronze ball packaging box to prevent the phosphor-bronze ball packaging box from tipping over.
[0015] 3. The first slider moves to the left and resets to cooperate with the sliding plate, so that the push plate slides to the right to push the phosphor bronze ball packaging box on the horizontal plate to the right onto the cart.
[0016] 4. When the phosphor bronze ball packaging box is pushed to the right by the push plate, the protective plate can ensure that the phosphor bronze ball packaging box moves parallel to the right, thereby ensuring that the phosphor bronze ball packaging box is arranged neatly. Under the cooperation of the pressure plate and the protective plate, the protective plate can slide back and forth to adapt to packaging boxes of different sizes.
[0017] 5. The packaging box is placed on the placement plate and the packaging box is limited by the limit plate. When the push plate pushes the packaging box backward, the limit plate can prevent the packaging box from being pushed to the left. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 It is a schematic diagram of the three-dimensional structure from the first viewing angle of the present invention.
[0019] Figure 2 It is a schematic diagram of the three-dimensional structure from a second viewing angle of the present invention.
[0020] Figure 3 It is a schematic diagram of the three-dimensional structure of the first part of the present invention.
[0021] Figure 4 It is a schematic diagram of the three-dimensional structure of the second part of the present invention.
[0022] Figure 5 It is a schematic diagram of the three-dimensional structure of the rotating mechanism of the present invention.
[0023] Figure 6 It is a partial three-dimensional structural schematic diagram of the rotating mechanism of the present invention.
[0024] Figure 7 It is a three-dimensional structural schematic diagram of the pushing mechanism of the present invention.
[0025] Figure 8 It is a three-dimensional structural schematic diagram of the protection mechanism of the present invention.
[0026] Fig. 9 It is a partial three-dimensional structural schematic diagram of the protection mechanism of the present invention.
[0027] Fig.10 It is a schematic diagram of the three-dimensional structure of the material pushing mechanism of the present invention.
[0028] Fig.11 It is a three-dimensional structural schematic diagram of the fixing mechanism of the present invention.
[0029] Fig.12 It is a partial cross-sectional structural schematic diagram of the fixing mechanism of the present invention.
[0030] Fig.13It is a schematic diagram of the three-dimensional structure of the limiting mechanism of the present invention.
[0031] The markings of the components in the accompanying drawings are as follows: 1: mounting seat, 2: rodless cylinder, 3: mounting plate, 4: first slider, 5: first spring, 6: placement plate, 7: button, 8: rotating mechanism, 81: strip plate, 82: contact plate, 83: first torsion spring, 9: pushing mechanism, 91: rotating shaft, 92: pushing plate, 93: second torsion spring, 94: gear, 95: telescopic rod, 96: square plate, 97: rack, 10: protective mechanism, 101: supporting frame, 102: horizontal plate, 103: protective plate, 11: pushing mechanism, 111: sliding plate, 112: sliding rod, 113: pushing plate, 114: second spring, 115: connecting plate, 12: fixing mechanism, 121: third spring, 122: pressing plate, 123: fourth spring, 13: limiting mechanism, 131: second slider, 132: fifth spring, 133: limiting plate. DETAILED DESCRIPTION
[0032] In order to make the purpose, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings. It is hereby stated that the directional terms such as up, down, left, right, front, back, inside, outside, etc. that appear or will appear in the text of the present invention are only based on the accompanying drawings of the present invention, and are not specific limitations of the present invention. Example 1
[0033] A stacking device for packaging phosphor bronze balls, such as Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, it includes a mounting seat 1, a rodless cylinder 2, a mounting plate 3, a first slider 4, a first spring 5, a placement plate 6, a button 7, a rotating mechanism 8 and a pushing mechanism 9. The rodless cylinder 2 is fixed to the upper side of the mounting seat 1 by bolts, the mounting plate 3 is slidably on the rodless cylinder 2, the first slider 4 is slidably connected to the mounting plate 3, the first spring 5 is connected between the first slider 4 and the mounting plate 3, the placement plate 6 is rotatably connected to the first slider 4, the button 7 is installed at the lower position of the mounting plate 3, the button 7 is electrically connected to the rodless cylinder 2, the placement plate 6 moves downward and contacts with the button 7, a rotating mechanism 8 is provided between the mounting seat 1 and the placement plate 6, the rotating mechanism 8 can control the placement plate 6 to rotate for reversing, and a pushing mechanism 9 is provided on the right side of the mounting seat 1, the pushing mechanism 9 can push the packaging box containing phosphor bronze balls backwards.
[0034] When using the device, the staff moves the device to a suitable position so that the placement plate 6 is located below the phosphor bronze ball discharge port. Then the staff can move the cart loaded with the phosphor bronze ball packaging box to the right rear side of the device. Then the staff puts the packaging box on the placement plate 6. When the phosphor bronze ball falls into the packaging box, as the weight increases, the placement plate 6 will drive the first slider 4 to slide downward, and the first spring 5 will deform. When the placement plate 6 moves downward to contact with the button 7, the rodless cylinder 2 will operate to drive the mounting plate 3 to move to the right and then to the left. When the mounting plate 3 moves to the right, the placement plate 6 is also driven to move to the right through the first slider 4, thereby driving the phosphor bronze ball packaging box to move to the right. Then, the phosphor bronze ball packaging box is pushed backward through the cooperation of the rotating mechanism 8 and the pushing mechanism 9, so that the phosphor bronze ball packaging box is pushed to the cart at the rear side of the device for stacking. When the phosphor bronze ball packaging box is pushed backward, under the action of the first spring 5 returning to its original position, the first slider 4 drives the placement plate 6 to move upward and return to its original position. Then, the staff puts the next packaging box on the placement plate 6 for packaging and stacking again.
[0035] like Figure 1 , Figure 5 and Figure 6 As shown, the rotating mechanism 8 includes a strip plate 81, a contact plate 82 and a first torsion spring 83. The strip plate 81 is provided at the lower right part of the mounting seat 1, and the contact plate 82 is welded at the rear part of the placement plate 6. The contact plate 82 moves to the right and is squeezed by the strip plate 81 to rotate. The first torsion spring 83 is connected between the contact plate 82 and the first slider 4.
[0036] like Figure 1 , Figure 2 and Figure 7 As shown, the pushing mechanism 9 includes a rotating shaft 91, a pushing plate 92, a second torsion spring 93, a gear 94, a telescopic rod 95, a square plate 96 and a rack 97. The right side of the mounting seat 1 is connected to the rotating shaft 91 through a bearing, and the pushing plate 92 is welded on the rotating shaft 91. The second torsion spring 93 is connected between the pushing plate 92 and the mounting seat 1. The lower part of the rotating shaft 91 is keyed to the gear 94. The lower right part of the mounting seat 1 is welded with a telescopic rod 95. The left end of the telescopic rod 95 is welded with a square plate 96. The placement plate 6 moves to the right and contacts the square plate 96. The rear of the square plate 96 is bolted with a rack 97 meshing with the gear 94.
[0037] When the device is used, the placement plate 6 moves downward and drives the contact plate 82 to move downward. The placement plate 6 moves to the right and also drives the contact plate 82 to move to the right. When the contact plate 82 moves to the right and contacts with the strip plate 81, the contact plate 82 continues to move to the right and is squeezed by the strip plate 81 to rotate, thereby driving the placement plate 6 to rotate to the right on the first slider 4, and the first torsion spring 83 is deformed. When the placement plate 6 moves to the right and contacts with the square plate 96, the placement plate 6 continues to move to the right and pushes the square plate 96 to move to the right. The telescopic rod 95 is shortened, and the square plate 96 moves to the right and drives the rack 97 to move to the right. The rack 97 moves to the right and drives the gear 94 to rotate. The rotation of the gear 94 drives the rotating shaft 91 to rotate. The rotation of the rotating shaft 91 drives the push plate 92 to rotate backward. The second torsion spring 93 When deformation occurs, the pushing plate 92 rotates backward to push the phosphor-bronze ball packaging box on the placing plate 6 backward. When the phosphor-bronze ball packaging box is pushed out, the first slider 4 slides upward to drive the placing plate 6 and the contact plate 82 to move upward. After the contact plate 82 moves upward, it is no longer squeezed by the strip plate 81. At this time, under the action of the first torsion spring 83 resetting, the placing plate 6 rotates forward and no longer squeezes the square plate 96. Under the action of the second torsion spring 93 resetting, the pushing plate 92 rotates forward and resets, and then drives the gear 94 to reverse through the rotating shaft 91. The reverse rotation of the gear 94 drives the rack 97 to move to the left, and then drives the square plate 96 to move to the left and reset. In this way, when the placing plate 6 transports the phosphor-bronze ball packaging box to the right position of the device, the phosphor-bronze ball packaging box can be automatically pushed backward for stacking. Example 2
[0038] On the basis of Example 1, Figure 1 , Figure 2 , Figure 8 and Fig. 9 As shown, it also includes a protection mechanism 10, which can support and protect the packaging box containing phosphor bronze balls. The protection mechanism 10 includes a support frame 101, a cross plate 102 and a protection plate 103. The support frame 101 is installed on the lower rear side of the mounting seat 1 by bolts, and the cross plate 102 is welded on the support frame 101. The protection plate 103 is slidably connected to the cross plate 102.
[0039] like Figure 1 , Figure 2 and Fig.10As shown, it also includes a pushing mechanism 11, which can push the packaging box containing phosphor bronze balls to the right. The pushing mechanism 11 includes a sliding plate 111, a sliding rod 112, a pushing plate 113, a second spring 114 and a connecting plate 115. The sliding plate 111 is slidably connected to the right position of the rear side of the mounting seat 1, the first sliding block 4 moves to the left and contacts the sliding plate 111, the sliding rod 112 is slidably connected to the upper rear side of the mounting seat 1, the right part of the sliding rod 112 is welded with the pushing plate 113, the second spring 114 is connected between the pushing plate 113 and the mounting seat 1, the lower part of the rear side of the mounting seat 1 is connected with the connecting plate 115 through a bearing, the lower part of the sliding plate 111 is in contact with the left part of the connecting plate 115, and the right part of the connecting plate 115 is slidably connected to the lower part of the pushing plate 113.
[0040] In the initial state, the sliding plate 111 is squeezed by the first sliding block 4 and is in an upward state, and the second spring 114 is in a deformed state. When the device is used, when the first sliding block 4 slides downward and no longer squeezes the sliding plate 111, under the action of the second spring 114 returning to its original position, the sliding rod 112 drives the pushing plate 113 to slide leftward, and the pushing plate 113 slides leftward to drive the connecting plate 115 to rotate upward, thereby pushing the sliding plate 111 to slide downward. When the phosphor bronze ball packaging box pushed backward moves to the cross plate 102, the phosphor bronze ball packaging box is supported by the cross plate 102, and the protective Plate 103 can protect the phosphor bronze ball packaging box to prevent it from tipping over. When the first sliding block 4 moves to the left and resets to contact with the sliding plate 111, the first sliding block 4 continues to move to the left to squeeze the sliding plate 111 to slide upward. The sliding plate 111 slides upward and pushes the connecting plate 115 to rotate downward. The connecting plate 115 rotates downward and squeezes the pushing plate 113 to move right. The pushing plate 113 moves to the right and drives the sliding rod 112 to slide to the right. The second spring 114 is deformed, and the pushing plate 113 slides to the right to push the phosphor bronze ball packaging box on the cross plate 102 to the right onto the cart.
[0041] like Figure 2 , Fig.11 and Fig.12 As shown, it also includes a fixing mechanism 12, which can fix the position of the protective plate 103. The fixing mechanism 12 includes a third spring 121, a pressure plate 122 and a fourth spring 123. The third spring 121 is connected between the left part of the protective plate 103 and the mounting seat 1, and the pressure plate 122 is slidably connected to the cross plate 102. The left and right parts of the lower part of the protective plate 103 are each provided with four slots that cooperate with the pressure plate 122, and two fourth springs 123 are connected between the pressure plate 122 and the cross plate 102.
[0042] When the device is used, the phosphor bronze ball packaging box pushed backward will move onto the pressure plate 122, and at the same time, it will squeeze the protective plate 103 to slide backward, and the third spring 121 will be deformed. When the phosphor bronze ball packaging box is completely moved onto the pressure plate 122, under the action of gravity, the pressure plate 122 will slide downward, and the fourth spring 123 will be deformed. After the pressure plate 122 slides downward, it will be stuck in the card slot of the protective plate 103, thereby fixing the position of the protective plate 103. When the phosphor bronze ball packaging box is pushed to the right by the push plate 113 At the same time, under the cooperation of the pressure plate 122 and the protective plate 103, the protective plate 103 can slide back and forth to adapt to packaging boxes of different sizes. When the phosphor bronze ball packaging box is separated from the pressure plate 122, under the reset action of the fourth spring 123, the pressure plate 122 slides upward and resets, and under the reset action of the third spring 121, the protective plate 103 slides forward and resets.
[0043] like Figure 1 , Figure 2 and Fig.13 As shown, it also includes a limiting mechanism 13, which can limit the packaging box. The limiting mechanism 13 includes a second slider 131, a fifth spring 132 and a limiting plate 133. The second slider 131 is slidably connected to the rear of the placement plate 6, the fifth spring 132 is connected between the second slider 131 and the placement plate 6, and the limiting plate 133 is welded on the upper part of the second slider 131.
[0044] When using the device, the packaging box is placed on the placement plate 6 and the packaging box is limited by the limiting plate 133. When the pushing plate 92 pushes the packaging box backward, the limiting plate 133 can prevent the packaging box from being pushed to the left. At the same time, under the action of the fifth spring 132, the second slider 131 can drive the limiting plate 133 to slide left and right to prevent the packaging box from being stuck.
[0045] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A stacking device for packaging phosphor bronze balls, comprising a mounting seat (1), a rodless cylinder (2), a mounting plate (3), a first slider (4), a first spring (5), a placement plate (6) and a button (7), wherein the mounting seat (1) is connected to the upper side of the rodless cylinder (2), the mounting plate (3) is slidably connected to the rodless cylinder (2), the mounting plate (3) is slidably connected to the first slider (4), the first spring (5) is connected between the first slider (4) and the mounting plate (3), the placement plate (6) is rotatably connected to the first slider (4), the mounting plate (3) is connected to the lower part of the button (7), the button (7) is electrically connected to the rodless cylinder (2), and the placement plate (6) moves downward to contact the button (7), wherein: The utility model also comprises a rotating mechanism (8) and a pushing mechanism (9). The rotating mechanism (8) is provided between the mounting seat (1) and the placement plate (6). The rotating mechanism (8) is used to control the placement plate (6) to rotate and change direction. The right part of the mounting seat (1) is provided with a pushing mechanism (9) for pushing the packaging box containing the phosphor bronze balls backwards.
2. A stacking device for packaging phosphor bronze balls according to claim 1, characterized in that: The rotating mechanism (8) comprises a strip plate (81), a contact plate (82) and a first torsion spring (83); the strip plate (81) is connected to the lower right portion of the mounting seat (1); the contact plate (82) is connected to the rear portion of the placement plate (6); the contact plate (82) moves rightward to contact the strip plate (81); and the first torsion spring (83) is connected between the contact plate (82) and the first slider (4).
3. A stacking device for packaging phosphor bronze balls according to claim 2, characterized in that: The pushing mechanism (9) comprises a rotating shaft (91), a pushing plate (92), a second torsion spring (93), a gear (94), a telescopic rod (95), a square plate (96) and a rack (97). The right side of the mounting seat (1) is rotatably connected to the rotating shaft (91), the pushing plate (92) is connected to the rotating shaft (91), the second torsion spring (93) is connected between the pushing plate (92) and the mounting seat (1), the lower part of the rotating shaft (91) is connected to the right side of the mounting seat (1), the telescopic rod (95) is connected to the left end of the telescopic rod (95), the placement plate (6) moves to the right to contact the square plate (96), the rear part of the square plate (96) is connected to the rack (97), and the rack (97) is meshed with the gear (94).
4. A stacking device for packaging phosphor bronze balls according to claim 3, characterized in that: It also includes a protection mechanism (10) for supporting and protecting a packaging box containing phosphor bronze balls, the protection mechanism (10) including a support frame (101), a transverse plate (102) and a protection plate (103), the support frame (101) is connected to the lower rear side of the mounting seat (1), the transverse plate (102) is connected to the support frame (101), and the protection plate (103) is slidably connected to the transverse plate (102).
5. A stacking device for packaging phosphor bronze balls according to claim 4, characterized in that: The invention also comprises a pushing mechanism (11) for pushing the packaging box containing phosphor bronze balls to the right. The pushing mechanism (11) comprises a sliding plate (111), a sliding rod (112), a pushing plate (113), a second spring (114) and a connecting plate (115). The right part of the rear side of the mounting seat (1) is slidably connected to the sliding plate (111). The first sliding block (4) moves to the left and contacts the sliding plate (111). The upper part of the rear side of the mounting seat (1) is slidably connected to the sliding rod (112). The right part of the sliding rod (112) is connected to the pushing plate (113). The second spring (114) is connected between the pushing plate (113) and the mounting seat (1). The lower part of the rear side of the mounting seat (1) is rotatably connected to the connecting plate (115). The lower part of the sliding plate (111) contacts the left part of the connecting plate (115). The right part of the connecting plate (115) is slidably connected to the lower part of the pushing plate (113).
6. A stacking device for packaging phosphor bronze balls according to claim 5, characterized in that: It also includes a fixing mechanism (12) for fixing the position of the protective plate (103), the fixing mechanism (12) including a third spring (121), a pressure plate (122) and a fourth spring (123), the third spring (121) being connected between the left portion of the protective plate (103) and the mounting seat (1), the pressure plate (122) being slidably connected to the transverse plate (102), and two fourth springs (123) being connected between the pressure plate (122) and the transverse plate (102).
7. A stacking device for packaging phosphor bronze balls according to claim 6, characterized in that: It also includes a limiting mechanism (13) for limiting the position of the packaging box. The limiting mechanism (13) includes a second slider (131), a fifth spring (132) and a limiting plate (133). The rear portion of the placement plate (6) is slidably connected to the second slider (131). The fifth spring (132) is connected between the second slider (131) and the placement plate (6). The upper portion of the second slider (131) is connected to the limiting plate (133).
8. A stacking device for packaging phosphor bronze balls according to claim 7, characterized in that: The left and right parts of the lower part of the protection plate (103) are both provided with a plurality of slots that cooperate with the pressing plate (122).