CN109366096B - Method for manufacturing paper box lifting rod - Google Patents

Method for manufacturing paper box lifting rod Download PDF

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Publication number
CN109366096B
CN109366096B CN201811082989.XA CN201811082989A CN109366096B CN 109366096 B CN109366096 B CN 109366096B CN 201811082989 A CN201811082989 A CN 201811082989A CN 109366096 B CN109366096 B CN 109366096B
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blank
cylindrical end
finished product
punch press
punch
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CN109366096A (en
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彭龙江
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Shenzhen Jinpeng Hardware Plastic Co ltd
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Shenzhen Jinpeng Hardware Plastic Co ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass

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  • Mechanical Engineering (AREA)
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Abstract

The invention provides a method for manufacturing a paper box lifting rod, which comprises the following steps: step 1, blanking: punching and blanking the raw material by using a punch press to form a first blank; step 2, first-time punch forming: pressing the R-shaped corner surface of the first blank by using a punch press, and flattening to form a second blank; step 3, secondary punch forming: performing rounding operation on the second blank by using a punch press to enable one end of the middle rod part to form a first cylindrical end semi-finished product and the other end of the middle rod part to form a second cylindrical end semi-finished product to form a third blank; step 4, third punch forming: rotating the third blank by 90 degrees and fixing the third blank on a punching machine, performing rounding operation on a first cylindrical end semi-finished product of the third blank by using the punching machine to form a first cylindrical end, and performing rounding operation on a second cylindrical end semi-finished product to form a second cylindrical end to form a fourth blank; step 5, surfacing: and (4) performing surfacing welding on the joint position of the middle rod part and the second cylindrical end of the blank four by using automatic welding. The invention can effectively reduce the production cost and ensure the product quality.

Description

Method for manufacturing paper box lifting rod
Technical Field
The invention relates to the technical field of printing, in particular to a method for manufacturing a paper box lifting rod.
Background
The paper box lifting rod (SHAFT-LIFT) is a common accessory in the printing industry at present, and is generally used in a printing and copying compound machine for driving the paper box to move up and down. The existing carton lifting rod is formed by adopting a casting process, and on one hand, a corresponding casting mold needs to be designed, so that the production cost is high; on the other hand, casting defects which are difficult to avoid, such as air holes, sand holes, pits, cracks, abrasion and the like, are easily caused by the casting process, so that the quality of products is difficult to ensure, the control difficulty of the yield is high, the production efficiency is low, the requirement of casting on operators is high, a large number of dangerous and harmful factors exist, a large number of machining processes are needed in the follow-up process, and the production cost is high.
Disclosure of Invention
The invention aims to provide a method for manufacturing a lifting rod of a paper box, which can effectively reduce the production cost, improve the production efficiency and the yield, ensure the product quality, facilitate the operation and improve the operation safety.
In order to solve the technical problem, the invention provides a method for manufacturing a paper box lifting rod, which comprises the following steps:
step 1, blanking: punching and blanking the raw material by using a punch press to form a blank I with a middle rod part and a plurality of branch rod parts;
step 2, first-time punch forming: pressing an R-shaped angle surface of the first blank by using a punch press, and flattening the support rod part to form a second blank;
step 3, secondary punch forming: performing rounding operation on the middle rod part of the second blank by using a punch press to enable one end of the middle rod part to form a first cylindrical end semi-finished product and the other end of the middle rod part to form a second cylindrical end semi-finished product to form a third blank;
step 4, third punch forming: fixing the third blank on a punching machine, performing primary rounding operation on the first cylindrical end semi-finished product and the second cylindrical end semi-finished product of the third blank by using the punching machine, rotating the third blank by 60 degrees, and performing primary rounding operation on the first cylindrical end semi-finished product and the second cylindrical end semi-finished product of the third blank to enable the first cylindrical end semi-finished product to form a first cylindrical end and the second cylindrical end semi-finished product to form a second cylindrical end to form a fourth blank;
in a preferred embodiment of the present invention, the diameter of the first cylindrical end of the fourth blank is 8.6mm, and the diameter of the second cylindrical end is 5 mm.
As a preferable scheme of the invention, the step 1 further comprises fixing the raw materials in a blanking die before punching and blanking, and brushing punching oil on the raw materials; step 2, brushing stamping oil on the processing part of the blank I; step 3, brushing stamping oil on the processing part of the blank II; and step 4, brushing stamping oil on the machining part of the blank III.
In a preferred embodiment of the present invention, the press used in step 1 is a 300T press.
In a preferred embodiment of the present invention, the punch press used in step 2 is a 200T punch press.
In a preferred embodiment of the present invention, the punch used in step 3 and step 4 is an 80T punch.
As a preferable scheme of the present invention, the step 4 further includes a step 5 of overlaying welding: and overlaying the joint position of the middle rod part and the second cylindrical end of the blank IV.
As a preferable scheme of the invention, the overlaying welding in the step 5 adopts automatic welding, the welding current is 120-140A, the welding voltage is 21-23V, the amplitude speed is 8.0s, the welding speed is 0.7-0.8s, the welding strength is more than 1000N, and the CO2 protective gas pressure is 10-20 MPa.
In a preferred embodiment of the present invention, the weld portion of the weld deposit extends from the center shank portion to the second cylindrical end.
As a preferable aspect of the present invention, the weld site of the bead weld includes a first region located on the middle rod portion and a second region located on the second cylindrical end; the welding length on the first area 51 is 14mm, the width is 5mm-6mm, the welding height is 1.5mm, and the tolerance is-0.1 mm to-0.3 mm; the welding length on the second area is 7.5mm, the welding height is 1.5mm, and the tolerance is-0.1 mm to-0.7 mm.
As a preferable scheme of the invention, the step 5 further comprises machining, carburizing treatment, sand blasting, electroplating and packaging.
The invention has the following technical effects: according to the manufacturing method of the paper box lifting rod, the plurality of punch forming steps are carried out after blanking, so that compared with the prior art, the production efficiency and the yield can be effectively improved, the product quality is guaranteed, the operation can be effectively and conveniently carried out by adopting the punch forming steps, the operation safety is improved, and the production cost is greatly reduced.
Drawings
FIG. 1 is a block diagram illustrating a process of manufacturing a carton lifter according to the present invention;
FIG. 2 is a schematic structural diagram of a first blank according to the present invention;
FIG. 3 is a schematic structural diagram of a second blank according to the present invention;
FIG. 4 is a schematic cross-sectional view taken along line A-A of FIG. 3 according to the present invention;
FIG. 5 is a schematic cross-sectional view taken along line B-B of FIG. 3 according to the present invention;
FIG. 6 is a schematic cross-sectional view taken along line C-C of FIG. 3 in accordance with the present invention;
FIG. 7 is a schematic cross-sectional view taken along line D-D of FIG. 3 in accordance with the present invention;
FIG. 8 is a schematic cross-sectional view E-E of FIG. 3 according to the present invention;
FIG. 9 is a schematic cross-sectional view F-F of FIG. 3 according to the present invention;
FIG. 10 is a schematic cross-sectional view taken along line G-G of FIG. 3 in accordance with the present invention;
FIG. 11 is a schematic cross-sectional view taken along line H-H of FIG. 3 in accordance with the present invention;
FIG. 12 is a schematic cross-sectional view of the J-J of FIG. 3 in accordance with the present invention;
FIG. 13 is a schematic view of the direction A of FIG. 3 according to the present invention;
FIG. 14 is a schematic view of the direction B of FIG. 3 according to the present invention;
FIG. 15 is a schematic structural view of a third blank according to the present invention;
FIG. 16 is a schematic cross-sectional view taken along line 1-1 of FIG. 15 in accordance with the present invention;
FIG. 17 is a schematic cross-sectional view taken along line 2-2 of FIG. 15 in accordance with the present invention;
FIG. 18 is a schematic view of a single rounding operation of a third blank according to the present invention;
FIG. 19 is a schematic cross-sectional view of the 1 '-1' section of FIG. 18 according to the present invention;
FIG. 20 is a schematic cross-sectional view of the 2 '-2' of FIG. 18 according to the present invention;
FIG. 21 is a schematic structural view of a fourth blank according to the present invention;
FIG. 22 is a schematic cross-sectional view of 1 "-1" of FIG. 21 according to the present invention;
FIG. 23 is a schematic cross-sectional view of the 2 "-2" of FIG. 21 according to the present invention;
FIG. 24 is a schematic view of a weld location for one weld overlay provided by the present invention;
fig. 25 is a schematic view of an operation position of the machining according to the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention are described in further detail below with reference to the accompanying drawings. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the invention without any inventive step, are within the scope of protection of the invention.
Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The use of "first," "second," and similar terms in the present application do not denote any order, quantity, or importance, but rather the terms are used to distinguish one element from another.
As shown in fig. 1, it shows a method for making a carton lifting rod provided by the invention. The manufacturing method of the paper box lifting rod specifically comprises the following steps:
step 1, blanking: the raw material is punched and blanked by a punch press to form a blank one 100 having a central rod portion 1 and a plurality of branch rod portions 2. Specifically, in the present embodiment, the plate thickness of the raw material may be 5 mm. As shown in fig. 2, a blank 100 formed after punching and blanking comprises a middle rod part 1 and three branch rod parts 2 connected to the middle rod part 1; the middle rod part 1 comprises a first section 11, a second section 12, a third section 13 and a fourth section 14, wherein the first section 11, the second section 12 and the third section 13 are connected in sequence from small to large in width, and the fourth section 14 is connected to the third section 13 and is smaller than the third section in width; specifically, the length L11 of the first end 11 is 27.5mm, and the maximum width B11 is 6 mm; the length L12 of the second section 12 is 227.7mm, and the maximum width B12 is 8 mm; the length L13 of the third section 13 is 163.2mm, and the maximum width B12 is 16 mm; the length L14 of the fourth section 14 is 26 mm; the maximum width B12 is 13.6 mm. The middle part of the first section 11 is provided with a rounding part 111 with smaller width, which is used for the subsequent rounding operation with the diameter of 5 mm; the fourth section 14 is used for subsequent rounding operation with a diameter of 8mm, wherein a connecting isthmus with a width of about 8mm is formed at a connecting position between the fourth section 14 and the third section 13, so that the second cylindrical end and the middle rod part formed after the subsequent rounding operation is finished are excessively smooth.
Specifically, in the present embodiment, the three strut portions 2 are a first strut portion 21 connected to the junction of the first segment 11 and the second segment 12, a second strut portion 22 connected to the second segment 12, and a third strut portion 23 connected to the junction of the second segment 12 and the third segment 13, respectively. Specifically, the width of the first strut part 21 and the width of the second strut part 22 may be 6mm, the free end of the third strut part 23 is a bending section, and one end connected to the middle strut part 1 is a triangular section; the length L2 of the first, second and third strut parts 21, 22 and 23 is preferably kept the same, and may be 83mm in particular, and the length L2 refers to the distance of the end line of the strut part 2 on the side away from the middle strut part 1 from the bottom end line of the middle strut part. Specifically, in this embodiment, the step 1 further includes fixing the raw material in a blanking die before punching and blanking, and brushing punching oil on the raw material, and the punch press used in the step 1 is preferably a 300T punch press.
Step 2, first-time punch forming: pressing an R-angle surface pressing process, namely a surface pressing process for pressing an R angle, on the first blank 100 by using a punch press, and flattening the branch part 2 to form a second blank 200; specifically, as shown in fig. 3 to 14, in the present embodiment, the pressing position of the R-pressing surface is 36, which can effectively remove the front edge of the first blank formed after punching and blanking, so that the cross section of the strut portion 2 and the middle rod portion 1 of the second blank 200 after forming has round chamfer transition. Specifically, the two crushing positions are respectively located on the second strut part 22 and the third strut part 23, and the crushing length L isBPreferably 20 mm. Specifically, in this embodiment, the step 2 further includes brushing stamping oil on the processing portion of the first blank 100, and the punch press used in the step 2 is a 200T punch press. Specifically, in this embodiment, step 2 still includes the leveling operation, levels through using same punch press to pressing the two 200 of blank that form after the R angle face was given as security and was flattened the operation to can effectively eliminate and press the R angle face and give as security and flatten the product deformation that the operation back leads to because of the internal stress, effectively guarantee product quality.
Step 3, secondary punch forming: performing rounding operation on the middle rod part 1 of the second blank 200 by using a punch press, so that a first cylindrical end semi-finished product 15 is formed at one end of the middle rod part 1, and a second cylindrical end semi-finished product 16 is formed at the other end of the middle rod part to form a third blank 300; specifically, in the present embodiment, the first cylindrical end semi-finished product 15 is formed by the rounding operation of the rounding portion 111 in the middle of the first section 11 of the middle rod portion 1 of the second blank, and the second cylindrical end semi-finished product 16 is formed by the rounding operation of the fourth section 14 of the middle rod portion 1 of the second blank 200. Specifically, as shown in FIGS. 15-17, the cross-section of the first cylindrical end blank of the formed blank three 300, as shown in section 1-1, is approximately circular; similarly, the cross-section of the second cylindrical end blank of the formed blank three 300, as shown in cross-section 2-2, is approximately circular. In this embodiment, the punch press used in step 3 is an 80T punch press, and the method further includes brushing punching oil on the processing portion before the rounding operation, that is, brushing punching oil on the operation position of the rounding operation.
Step 4, third punch forming: fixing the blank III 300 on a punching machine, performing primary rounding operation on the first cylindrical end semi-finished product 15 and the second cylindrical end semi-finished product 16 of the blank III by using the punching machine, then rotating the blank III by 60 degrees, and performing primary rounding operation on the first cylindrical end semi-finished product 15 and the second cylindrical end semi-finished product 16 of the blank III to enable the first cylindrical end semi-finished product 15 to form a first cylindrical end 3 and the second cylindrical end semi-finished product 16 to form a second cylindrical end 4 to form a blank IV; specifically, in the present embodiment, as shown in fig. 18 to 20, the cross section formed by fixing the blank three 300 to the punch and performing the first rounding operation on the first cylindrical end semi-finished product 15 of the blank three by using the punch is shown as a cross section 1 'to 1', and similarly, the cross section formed by performing the first rounding operation on the second cylindrical end semi-finished product 16 of the blank three is shown as a cross section 2 'to 2'; then, rotating the blank three by 60 degrees, and performing a first rounding operation on the first cylindrical end semi-finished product 15 and the second cylindrical end semi-finished product 16 of the blank three to enable the first cylindrical end semi-finished product 15 to form a first cylindrical end 3, and the second cylindrical end semi-finished product 16 to form a second cylindrical end 4, specifically, as shown in fig. 21-23, the cross section of the formed first cylindrical end 3 is shown as a section 1 "-1", and the cross section of the formed second cylindrical end 4 is shown as a section 2 "-2"; specifically, the diameter of the first cylindrical end 3 of the formed blank four is 5mm, and the diameter of the second cylindrical end 4 is 8.6 mm. In this embodiment, the punch press used in step 4 is an 80T punch press, and the method further includes brushing punching oil on the processing portion before the rounding operation, that is, brushing punching oil on the operation position of the rounding operation. Like this, can effectively guarantee the formation of first cylinder end 3 and second cylinder end 4 through second stamping forming and third stamping forming, can use same punch press moreover, simple process, low in production cost, product quality is high.
Further, step 4 is followed by step 5 of overlaying: and (3) overlaying the joint position of the middle rod part 1 and the second cylindrical end 4 of the blank four 400 by using automatic welding. Specifically, in this embodiment, the welding current of the automatic welding in step 5 is 120-140A, the welding voltage is 21-23V, the amplitude speed is 8.0s, the welding speed is 0.7-0.8s, the welding strength is over 1000N, and the pressure of the CO2 shielding gas is 10-20 Mpa. Specifically, as shown in fig. 24, the weld site 5 of the overlay welding extends from the central rod portion 1 to the second cylindrical end 4, and the weld site 5 of the overlay welding includes a first region 51 located on the central rod portion 1 and a second region 52 located on the second cylindrical end 4; the length of the weld on the first region 51 is 14mm and the width is 5mm to 6 mm. The welding height is 1.5mm, and the tolerance is-0.1 mm to-0.3 mm; the length of the weld on the second region 52 is 7.5mm, the height of the weld is 1.5mm, and the tolerance is-0.1 mm to-0.7 mm. The connecting strength between the second cylindrical end 4 and the middle rod part 1 which are formed by multiple times of punch forming can be effectively ensured through the surfacing process, the torsional deformation caused by bearing torque is prevented, and the product quality is effectively improved.
Further, the step 5 is followed by machining, carburizing, sand blasting, electroplating and packaging. Specifically, the machining process may be a turning and drilling process using a combined machine tool, as shown in fig. 25, the working position of the turning is the second cylindrical end 4, the diameter of the second cylindrical end 4 is corrected to be 8mm by the turning, and the tolerance is 0mm to-0.15 mm, so that the forming of the second cylindrical end 4 is effectively ensured, and the precision and quality of the product are ensured. The drilling process is to form a bore hole with a diameter of 4mm on the second cylindrical end 4. Particularly, the product can have higher surface hardness, high wear resistance and fatigue strength and maintained toughness through carburizing treatment, and the corrosion resistance of the product can be effectively enhanced through sand blasting and electroplating.
The manufacturing method of carton lifter that this embodiment provided is through a plurality of stamping forming after the blanking and build-up welding in handing-over position to the well pole portion of blank four and second cylinder end, thereby compare with current casting process, can effectively avoid the product of casting defect, effectively improve the quality and the yields of product, improve production efficiency, and adopt stamping forming can effectively make things convenient for the operation, improve the operation security, also can effectively guarantee the uniformity of product quality simultaneously, reduce the control degree of difficulty of product yields, moreover, manufacturing cost has been reduced by a wide margin.
The above-mentioned embodiments only express the embodiments of the present invention, and the description is more specific and detailed, but not understood as the limitation of the patent scope of the present invention, but all the technical solutions obtained by using the equivalent substitution or the equivalent transformation should fall within the protection scope of the present invention.

Claims (9)

1. A method for manufacturing a paper box lifting rod is characterized by comprising the following steps:
step 1, blanking: punching and blanking the raw material by using a punch press to form a blank I with a middle rod part and a plurality of branch rod parts;
step 2, first-time punch forming: performing a surface pressing process of pressing an R angle on the first blank by using a punch press, and performing flattening operation on the support rod part to form a second blank;
step 3, secondary punch forming: performing rounding operation on the middle rod part of the second blank by using a punch press to enable one end of the middle rod part to form a first cylindrical end semi-finished product and the other end of the middle rod part to form a second cylindrical end semi-finished product to form a third blank;
step 4, third punch forming: and fixing the third blank on a punching machine, performing primary rounding operation on the first cylindrical end semi-finished product and the second cylindrical end semi-finished product of the third blank by using the punching machine, rotating the third blank by 60 degrees, and performing primary rounding operation on the first cylindrical end semi-finished product and the second cylindrical end semi-finished product of the third blank to enable the first cylindrical end semi-finished product to form a first cylindrical end and the second cylindrical end semi-finished product to form a second cylindrical end to form a fourth blank.
2. A method of making a carton lifter according to claim 1, wherein the first cylindrical end of the blank four has a diameter of 8.6mm and the second cylindrical end has a diameter of 5 mm.
3. A method for making a carton lifter according to claim 1, wherein the step 1 further comprises fixing the raw material in a blanking die before punching and blanking, and brushing punching oil on the raw material; step 2, brushing stamping oil on the processing part of the blank I; step 3, brushing stamping oil on the processing part of the blank II; and step 4, brushing stamping oil on the machining part of the blank III.
4. A method of making a carton lifter according to claim 1, characterized in that the punch press used in step 1 is a 300T punch press.
5. A method of making a carton lifter according to claim 1, characterized in that the punch press used in step 2 is a 200T punch press.
6. A method of making a carton lifter according to claim 1, wherein the punch used in step 3 and step 4 is an 80T punch.
7. A method for making a carton lifter according to claim 1, characterized in that step 4 is followed by step 5 of overlaying: and overlaying the joint position of the middle rod part and the second cylindrical end of the blank IV.
8. A method of making a carton lifter according to claim 7, wherein the weld of the weld overlay extends from the shank portion to the second cylindrical end.
9. A method of making a carton lifter according to claim 8, wherein the weld locations of the weld overlay comprise a first zone on the mid-rod portion and a second zone on the second cylindrical end; the welding length on the first area is 14mm, the width is 5mm-6mm, the welding height is 1.5mm, and the tolerance is-0.1 mm to-0.3 mm; the welding length on the second area is 7.5mm, the welding height is 1.5mm, and the tolerance is-0.1 mm to-0.7 mm.
CN201811082989.XA 2018-09-17 2018-09-17 Method for manufacturing paper box lifting rod Active CN109366096B (en)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6049964A (en) * 1996-06-19 2000-04-18 Nsk Ltd. Method of making a yoke for universal joint
EP1134412A2 (en) * 2000-03-15 2001-09-19 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Method and apparatus for producing hollow piston for compressor by forging
CN101235847A (en) * 2008-02-20 2008-08-06 宁波恒力汽配轴承有限公司 Straight-line rolling slipper block and method of manufacture
CN102528392A (en) * 2011-12-23 2012-07-04 浙江鼎美电器有限公司 Preparation process of anti-oxidation non-discoloring local wiredrawn buckle plate
CN106514154A (en) * 2016-12-12 2017-03-22 南通福乐达汽车配件有限公司 Integral spinning forming method of silicone oil damper housing of crankshaft
CN107088611A (en) * 2017-06-20 2017-08-25 江苏华灿电讯股份有限公司 One kind installs board mount and its processing method

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6049964A (en) * 1996-06-19 2000-04-18 Nsk Ltd. Method of making a yoke for universal joint
EP1134412A2 (en) * 2000-03-15 2001-09-19 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Method and apparatus for producing hollow piston for compressor by forging
CN101235847A (en) * 2008-02-20 2008-08-06 宁波恒力汽配轴承有限公司 Straight-line rolling slipper block and method of manufacture
CN102528392A (en) * 2011-12-23 2012-07-04 浙江鼎美电器有限公司 Preparation process of anti-oxidation non-discoloring local wiredrawn buckle plate
CN106514154A (en) * 2016-12-12 2017-03-22 南通福乐达汽车配件有限公司 Integral spinning forming method of silicone oil damper housing of crankshaft
CN107088611A (en) * 2017-06-20 2017-08-25 江苏华灿电讯股份有限公司 One kind installs board mount and its processing method

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