CN113733590A - Table tennis adopting glue-free welding process - Google Patents
Table tennis adopting glue-free welding process Download PDFInfo
- Publication number
- CN113733590A CN113733590A CN202111030619.3A CN202111030619A CN113733590A CN 113733590 A CN113733590 A CN 113733590A CN 202111030619 A CN202111030619 A CN 202111030619A CN 113733590 A CN113733590 A CN 113733590A
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- China
- Prior art keywords
- table tennis
- hemispherical
- groove
- hemispherical spherical
- welding
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000003466 welding Methods 0.000 title claims abstract description 18
- 238000000034 method Methods 0.000 title abstract description 15
- 238000001746 injection moulding Methods 0.000 claims abstract description 17
- 238000004519 manufacturing process Methods 0.000 claims abstract description 12
- 238000004023 plastic welding Methods 0.000 claims abstract description 12
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 10
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 claims description 5
- 238000007499 fusion processing Methods 0.000 claims 4
- 239000003292 glue Substances 0.000 abstract description 7
- 229920003023 plastic Polymers 0.000 abstract description 3
- 239000004033 plastic Substances 0.000 abstract description 3
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 239000000243 solution Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229920002635 polyurethane Polymers 0.000 description 2
- 239000004814 polyurethane Substances 0.000 description 2
- 238000007639 printing Methods 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 238000010146 3D printing Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002860 competitive effect Effects 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000036632 reaction speed Effects 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C69/00—Combinations of shaping techniques not provided for in a single one of main groups B29C39/00 - B29C67/00, e.g. associations of moulding and joining techniques; Apparatus therefore
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
- B29C65/08—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using ultrasonic vibrations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/54—Balls
- B29L2031/547—Table tennis balls
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
The invention relates to the field of table tennis processing, and particularly discloses a table tennis adopting a glue-free welding process, which comprises the following steps: injection molding into two hemispherical spherical shells by an injection molding machine; the outer side of the edge of one hemispherical spherical shell is provided with a convex block, and the inner side of the edge of the other hemispherical spherical shell is provided with a groove; the method has the advantages that the hemispherical ball shell with the lug and the hemispherical ball shell with the groove are softened, the two hemispherical ball shells are mutually spliced, the ultrasonic plastic welding is adopted to reinforce and weld the joint, the groove and the lug are matched and fixed, and then the ultrasonic plastic is used for welding and reinforcing, so that the firmness between the two hemispheres of the table tennis is reinforced, the service life is prolonged, the service life is generally more than 5 years, meanwhile, the condition that workers are injured by glue in the production process is avoided, the width of the joint can be controlled to be 0.1-0.9mm, the regularity and the stability of the table tennis are improved, and in addition, the table tennis manufactured by the method is low in manufacturing cost and high in production efficiency.
Description
Technical Field
The invention relates to the technical field of table tennis manufacturing, and particularly discloses a table tennis adopting a glue-free welding process.
Background
The table tennis is a sports item suitable for people of all ages, has a long history as a national ball in China, represents the highest competitive standard in China, can be trained at the reaction speed and limb coordination during table tennis, and is divided into the following gapless balls and seamless balls in modern table tennis sports.
Referring to the description and the accompanying drawing 2, the structure of the prior art table tennis ball is generally as follows: the technical steps of the method comprise cutting a PVC plate into spherical sheets, hot-melting and molding the spherical sheets into hemispheres, overlapping and bonding two hemispherical ends, sticking the table tennis ball with the structure by glue, wherein the width of the joint 3 of the existing table tennis shell is larger and reaches 1.2-1.6 mm, so that the surface of the table tennis ball is uneven, the joint has obvious joints, the thickness of the joint is obviously different from the thicknesses of other parts, the running track of the table tennis ball has certain irregular change in the actual competition process, the competition result is further influenced, in addition, sticking the two hemispheres by glue, in the production process, workers contact with the glue for a long time to influence the health, and the fixed table tennis ball is connected by the glue, so the service life is not long, the typical lifetime is one to two years. Melting
Wherein seamless ball adopts 3D printing technology processing, at the in-process of printing, the node of printing, thickness can't be controlled, leads to the regularity on spheroid surface can't be unified, and then can't reach the standard of international match to the cost of manufacture of seamless ball is higher, and output is little, and in addition, the material majority of preparation seamless ball is polyurethane, and polyurethane is generally harmful to the human body.
Disclosure of Invention
Aiming at the defects, the invention provides a table tennis ball adopting a glue-free welding process.
The technical scheme adopted by the invention for solving the problems is as follows:
the invention provides a table tennis ball adopting a glue-free welding process, and a manufacturing method of the table tennis ball comprises the following steps:
s1, injection molding ABS plastic into two hemispherical spherical shells through an injection molding machine;
s2, taking two hemispherical spherical shells which are subjected to injection molding in S1, wherein a bump is arranged on the outer side of the edge of one hemispherical spherical shell, and a groove matched with the bump is arranged on the inner side of the edge of the other hemispherical spherical shell;
s3, softening the hemispherical spherical shell with the bump and the hemispherical spherical shell with the groove, splicing the two hemispherical spherical shells, fixing the bump in the groove, and reinforcing and welding the joint by ultrasonic plastic welding.
Further, in the step S3, the frequency of the ultrasonic plastic welding is 20000-.
Further, in step S3, the width of the existing seam is 0.1mm to 0.9 mm.
Further, in the step S3, the duration of the ultrasonic plastic welding of the single table tennis ball is 0.1 to 0.5S.
In conclusion, the invention has the beneficial effects that: the invention provides a table tennis ball adopting a glue-free welding process, and a manufacturing method of the table tennis ball comprises the following steps: s1, injection molding ABS plastic into two hemispherical spherical shells through an injection molding machine; s2, taking two hemispherical spherical shells which are subjected to injection molding in S1, wherein a bump is arranged on the outer side of the edge of one hemispherical spherical shell, and a groove matched with the bump is arranged on the inner side of the edge of the other hemispherical spherical shell; s3, softening the hemispherical ball shell with the convex block and the hemispherical ball shell with the groove, splicing the two hemispherical ball shells, fixing the convex block in the groove, reinforcing and welding the joint by ultrasonic plastic welding, fixing the groove and the convex block in a matched manner, welding and reinforcing by ultrasonic plastic, reinforcing the firmness between the two hemispheres of the table tennis, prolonging the service life, generally prolonging the service life by more than 5 years, avoiding the damage to workers by glue in the production process, controlling the width of the existing joint to be between 0.1 and 0.9mm, and improving the regularity and stability of the table tennis.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a finished product of table tennis balls in a table tennis ball adopting a glueless welding process according to the present invention;
fig. 2 is a schematic structural diagram of a conventional table tennis ball with a seam.
In the drawings are labeled: 1-semicircular spherical shell, 2-spherical shell joint and 3-existing spherical shell joint.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.
In addition, the descriptions related to "first", "second", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
The technical scheme adopted by the invention for solving the problems is as follows:
a table tennis ball adopting a glue-free welding process, which comprises the following steps,
s1, injection molding ABS plastic into two hemispherical spherical shells 1 through an injection molding machine;
s2, taking two hemispherical spherical shells 1 which are subjected to injection molding in S1, wherein a bump is arranged on the outer side of the edge of one hemispherical spherical shell 1, and a groove matched with the bump is arranged on the inner side of the edge of the other hemispherical spherical shell 1;
s3, softening the hemispherical spherical shell 1 with the convex block and the hemispherical spherical shell 1 with the groove, splicing the two hemispherical spherical shells 1, fixing the convex block in the groove, and reinforcing and welding the joint by ultrasonic plastic welding.
As a preferred embodiment of this embodiment, in step S3, the frequency of ultrasonic plastic welding is 20000-.
Specifically, in step S3, the width of the existing seam 3 is 0.1mm to 0.9mm, which improves the regularity and stability of the table tennis ball.
As another preferred embodiment of this embodiment, in step S3, the time period for ultrasonic plastic welding of a single table tennis ball is 0.1-0.5S.
The invention provides a table tennis ball adopting a glue-free welding process, and a manufacturing method of the table tennis ball comprises the following steps: s1, injection molding ABS plastic into two hemispherical spherical shells through an injection molding machine; s2, taking two hemispherical spherical shells which are subjected to injection molding in S1, wherein a bump is arranged on the outer side of the edge of one hemispherical spherical shell, and a groove matched with the bump is arranged on the inner side of the edge of the other hemispherical spherical shell; s3, softening the hemispherical ball shell with the convex block and the hemispherical ball shell with the groove, splicing the two hemispherical ball shells, fixing the convex block in the groove, reinforcing and welding the joint by ultrasonic plastic welding, fixing the groove and the convex block in a matched manner, welding and reinforcing by ultrasonic plastic, reinforcing the firmness between the two hemispheres of the table tennis, prolonging the service life, generally prolonging the service life by more than 5 years, avoiding the damage to workers by glue in the production process, controlling the width of the joint to be between 0.1 and 0.9mm, and improving the regularity and stability of the table tennis.
The above embodiments are preferred embodiments of the present invention, but the present invention is not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be construed as equivalents thereof, and all such changes, modifications, substitutions, combinations, and simplifications are intended to be included in the scope of the present invention.
Claims (4)
1. The table tennis ball adopting the glueless fusion process as claimed in claim 1, wherein: the table tennis manufacturing method comprises the following steps:
s1, injection molding ABS plastic into two hemispherical spherical shells through an injection molding machine;
s2, taking two hemispherical spherical shells which are subjected to injection molding in S1, wherein a bump is arranged on the outer side of the edge of one hemispherical spherical shell, and a groove matched with the bump is arranged on the inner side of the edge of the other hemispherical spherical shell;
s3, softening the hemispherical spherical shell with the bump and the hemispherical spherical shell with the groove, splicing the two hemispherical spherical shells, fixing the bump in the groove, and reinforcing and welding the joint by ultrasonic plastic welding.
2. The table tennis ball adopting the glueless fusion process as claimed in claim 1, wherein: in step S3, the frequency of ultrasonic plastic welding is 20000-.
3. The table tennis ball adopting the glueless fusion process as claimed in claim 1, wherein: in the step S3, the width of the joint of the spherical shell is 0.1mm-0.9 mm.
4. The table tennis ball adopting the glueless fusion process as claimed in claim 1, wherein: in the step S3, the time period for ultrasonic plastic welding of a single table tennis ball is 0.1-0.5S.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111030619.3A CN113733590A (en) | 2021-09-03 | 2021-09-03 | Table tennis adopting glue-free welding process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111030619.3A CN113733590A (en) | 2021-09-03 | 2021-09-03 | Table tennis adopting glue-free welding process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113733590A true CN113733590A (en) | 2021-12-03 |
Family
ID=78735287
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111030619.3A Pending CN113733590A (en) | 2021-09-03 | 2021-09-03 | Table tennis adopting glue-free welding process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113733590A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1222901A (en) * | 1968-07-04 | 1971-02-17 | Dunlop Co Ltd | Hollow plastic articles |
| ES2115505A1 (en) * | 1995-10-11 | 1998-06-16 | Bermejo Antonio Piera | Improvements to the manufacture of marbles |
| JP2014223265A (en) * | 2013-05-15 | 2014-12-04 | 日本卓球株式会社 | Manufacturing method for table tennis ball |
| CN105080081A (en) * | 2015-07-28 | 2015-11-25 | 上海红双喜股份有限公司 | Connecting structure and manufacturing method for two hemispheres of table tennis |
| CN105385095A (en) * | 2015-12-23 | 2016-03-09 | 蒋丁科 | Table tennis ball and preparing method thereof |
| WO2017013378A1 (en) * | 2015-07-22 | 2017-01-26 | Decathlon | Table tennis ball and method for manufacturing same |
| US20170106247A1 (en) * | 2014-03-21 | 2017-04-20 | Weener Plastik Gmbh | Celluloid-free, substantially spherical hollow body and fabrication thereof |
| EP3184153A1 (en) * | 2015-12-22 | 2017-06-28 | La Boule Obut | Method for producing a bowling ball |
| CN109999437A (en) * | 2019-05-06 | 2019-07-12 | 丁修宇 | Disposal molding has the seamless table tennis of interior lines |
-
2021
- 2021-09-03 CN CN202111030619.3A patent/CN113733590A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1222901A (en) * | 1968-07-04 | 1971-02-17 | Dunlop Co Ltd | Hollow plastic articles |
| ES2115505A1 (en) * | 1995-10-11 | 1998-06-16 | Bermejo Antonio Piera | Improvements to the manufacture of marbles |
| JP2014223265A (en) * | 2013-05-15 | 2014-12-04 | 日本卓球株式会社 | Manufacturing method for table tennis ball |
| US20170106247A1 (en) * | 2014-03-21 | 2017-04-20 | Weener Plastik Gmbh | Celluloid-free, substantially spherical hollow body and fabrication thereof |
| WO2017013378A1 (en) * | 2015-07-22 | 2017-01-26 | Decathlon | Table tennis ball and method for manufacturing same |
| CN105080081A (en) * | 2015-07-28 | 2015-11-25 | 上海红双喜股份有限公司 | Connecting structure and manufacturing method for two hemispheres of table tennis |
| EP3184153A1 (en) * | 2015-12-22 | 2017-06-28 | La Boule Obut | Method for producing a bowling ball |
| CN105385095A (en) * | 2015-12-23 | 2016-03-09 | 蒋丁科 | Table tennis ball and preparing method thereof |
| CN109999437A (en) * | 2019-05-06 | 2019-07-12 | 丁修宇 | Disposal molding has the seamless table tennis of interior lines |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20211203 |
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| RJ01 | Rejection of invention patent application after publication |