CN104801027A - Manufacture method for baseball bat - Google Patents
Manufacture method for baseball bat Download PDFInfo
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- CN104801027A CN104801027A CN201510111277.6A CN201510111277A CN104801027A CN 104801027 A CN104801027 A CN 104801027A CN 201510111277 A CN201510111277 A CN 201510111277A CN 104801027 A CN104801027 A CN 104801027A
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- bat
- bar
- baseball bat
- steel core
- silica gel
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Abstract
The invention discloses a manufacture method for a baseball bat. The manufacture method for the baseball bat takes the strip-type silica gel piece made of raw silica gel material as packing material, a steel core bar is used as the support rod at the middle, the strip-type silica gel piece and the steel core bar are combined in a high density mode via a layering mould through a high temperature forming method for forming baseball strip, thermal expansion of the strip-type silica gel piece is used for generating pressure for each layer of yarn material for curing epoxy resin adhered to each layer of carbon fiber or glass fiber yarn material. The manufacture method for the baseball bat has the characteristics of being high in repeating utilization factor, saving production cost, being simple in forming operation, even in wall thickness, high in strength and stable in quality; the coarse blank defect rate and the scrap rate of the baseball bat are low and the prepared baseball bat has no bubbles.
Description
Technical field
The present invention relates to sports goods manufacture technology field, especially relate to that a kind of production efficiency is high, cost is low and can make that intensity is high, quality stability good, the baseball bat preparation method of the baseball bat of uniform wall thickness.
Background technology
The molding mode that traditional bat adopts, for filling with eolian type, puts into ultra-thin plastic films pipe in bat preform, when bat preform is shaping, envelope mouth place is applied certain blast, makes ultra-thin plastic films pipe support bat preform inwall.
There is following shortcoming in bat forming method of the prior art:
1. when with fill with wind molding mode shaping time, after applying certain blast to ultra-thin plastic films pipe, ultra-thin plastic films pipe easily breaks, and makes bat produce gauffer, the phenomenon such as to leak out.
2. when with fill with wind molding mode shaping time, blast instability can cause bat wall unevenness, thus causes the problem of bat bad.
Chinese patent mandate publication number: CN103121254A, authorize publication date on May 29th, 2013, disclose a kind of compound bar bat preparation method, this preparation method comprises the steps: rack forming, makes the thick embryo support of baseball bat; Put into mould, shaping thick embryo support is put into the mould for making baseball bat, evenly fits and is covered with TPU layer in mould endosexine; Perfusion PU, pours into PU in the longitudinal direction erectting thick embryo support in mould in the mould placed; Hot briquetting, after the pouring into of PU to be done, carries out Baking out to mould together with baseball bat, is taken out by baseball bat after slaking is shaping in mould.The weak point of this invention is, has that production efficiency is low, cost is high, the shortcoming that the baseball bat wall unevenness made is even.
Although the eolian type of filling of the prior art can meet the requirement of producing baseball bat, fill with the bat quality instability that wind mode forms out, bat wall unevenness is even, causes unstable properties, and fraction defective is higher.
The bar shaped silica gel piece that raw silica gel material is made have high temperature resistant, mechanical strength is high, aging-resistant feature, bar shaped silica gel piece expands and extrudes each layer carbon fiber or glass fiber yarn material under the second forming temperature, thus make to combine closely between each layer yarn bed of material of the thick embryo of baseball bat made, bubble-free; Baseball bat thick embryo uniform wall thickness, surfaces externally and internally are smooth; Bar given as security by bat repeatedly for making baseball bat, can produce stay-in-grade baseball bat, and product percent of pass is high, reduce production cost.
Therefore, it is high that the present invention has recycling rate of waterused, saves production cost, and forming operation is simple, baseball bat thick embryo defective products rate and to scrap ratio low; High, the stay-in-grade feature of the baseball bat bubble-free made, uniform wall thickness, intensity.
As preferably, described steel core bar outer peripheral face is provided with screw thread.The setting of screw thread is convenient to silica gel piece and is attached in steel core bar, avoids silica gel piece and steel core bar to produce displacement.
As preferably, the spacing of described screw thread is 0.23cm to 0.30cm, and the depth of thread is 0.25cm to 0.30cm.
As preferably, the face area of described steel core bar right-hand member is greater than the face area of left end, and the end face at steel core bar two ends is equipped with along the axially extended extension rod of steel core bar, the extension rod end of right-hand member is provided with nut.
The effect of extension rod is location, steel core bar or bat preform is placed in and gives as security bar mould and baseball bat mould central authorities; The effect of nut is that bar given as security by fixing bat, and bat is given as security bar and extracted from bat formed body by fixture easy to use.
As preferably, described first forming temperature is 155 DEG C to 195 DEG C, and described first molding time is 50 minutes to 70 minutes, and described first briquetting pressure is 105 to 155 kilograms.
As preferably, described second forming temperature is 125 DEG C to 160 DEG C, and described second molding time is 65 minutes to 80 minutes, and described second briquetting pressure is 102 to 152 kilograms.
As preferably, described T is 60 DEG C to 80 DEG C.
As preferably, described carbon fiber yarn material adopts the high rigidity carbon fibre braiding being stained with liquid-state epoxy resin to form, and described glass fiber yarn material adopts that the high rigidity being stained with liquid-state epoxy resin is fiberglass braided to be formed.Glass fiber yarn material and carbon fiber yarn material have the advantages such as lightweight, good springiness, stable performance, durability be strong.
As preferably, when bar shaped silica gel piece there being bubble, needing first with blade, bubble to be punctured, and then wrapping up steel core bar with bar shaped silica gel piece.
Therefore, the present invention has following beneficial effect:
(1) recycling rate of waterused is high, saves production cost, and forming operation is simple;
(2) baseball bat thick embryo defective products rate and to scrap ratio low;
(3) the baseball bat bubble-free made, uniform wall thickness, intensity are high, steady quality.
Summary of the invention
Goal of the invention of the present invention is to overcome the deficiency that bat wall unevenness of the prior art is even, production efficiency is low, provides that a kind of production efficiency is high, cost is low and can make that intensity is high, quality stability good, the baseball bat preparation method of the baseball bat of uniform wall thickness.
To achieve these goals, the present invention is by the following technical solutions:
A kind of baseball bat preparation method, comprises the steps:
(6-1) the signature bar mould giving as security bar shaping for bat is delivered to table, by after signature bar mold heated to temperature T, mould inner surface is cleaned up, and brush mould release;
To give as security after bar mold heated cleaning die again, the effect of mold cleaning can be strengthened, better wash away the oil stain of mould inner surface and resin etc.;
(6-2) on the steel core bar outer peripheral face of the mating shapes with baseball bat, brush silica gel solid, and stove plate steel core bar being placed on table toasts, when steel core bar surface is in white, stop baking;
The length of steel core bar is longer than the length of baseball bat, and the diameter of steel core bar is less than the diameter of baseball bat; When being baked on steel core bar surface in white, steel core bar and bar shaped silica gel piece is enable better to paste combination;
(6-3) steel core bar after baking is wrapped up with the bar shaped silica gel piece be made up of raw silica gel material;
(6-4) steel core bar being enclosed with bar shaped silica gel piece is put into signature bar mould, close and give as security bar mould and be sent on table, shaping in the first briquetting pressure, the first forming temperature and the first molding time;
In forming process, bar shaped silica gel piece softens and is fitted in uniformly in steel core bar;
(6-5), after the first molding time reaches, take out giving as security bar by bar shaped silica gel piece and the shaping bat formed of steel core bar;
(6-6) on the bat signature bar outer peripheral face of forming, wrap up carbon fiber or the glass fiber yarn material that some layers are attached with viscous epoxy resin, obtain bat preform;
(6-7) bat preform is put into baseball bat mould, shaping in the second briquetting pressure, the second forming temperature and the second molding time;
In forming process, epoxy resin generation interlinkage solidifies.The silica gel expanded by heating on bar given as security by bat, produces pressure, extruded by unnecessary epoxy resin the carbon fiber on outer peripheral face or glass fibre, and make the Coating combination of each layer yarn material tight, bat inwall is even;
(6-8) the bat preform of forming is taken out from mould, with instrument, the bat of forming is given as security bar and take out from bat preform, obtain the thick embryo of shaping baseball bat;
(6-9) the thick embryo of baseball bat that step (6-6) to step (6-8) makes other is repeated.
The present invention is using the bar shaped silica gel piece of giving birth to silica gel material and making as inserts, middle using steel core bar as centre post, utilize and give as security bar mould high-temperature molding and bar shaped silica gel piece is combined with steel core bar high density form bat to give as security bar, the thermal expansivity of bar shaped silica gel piece is utilized to produce pressure to each layer yarn material, make to be attached to the epoxy resin cure on each layer carbon fiber or glass fiber yarn material, and combine closely between each layer yarn bed of material, bubble-free.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of steel core bar of the present invention;
Fig. 2 is a kind of structural representation that bar given as security by bat of the present invention;
Fig. 3 is a kind of structural representation of bat preform of the present invention;
Fig. 4 is a kind of flow chart of embodiments of the invention 1;
Fig. 5 is the another kind of structural representation of steel core bar of the present invention.
In figure: steel core bar 1, silica gel piece 2, bat give as security bar 3, carbon fiber yarn material 4, bat preform 5, extension rod 6, nut 7.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention will be further described.
Embodiment 1
Embodiment is as shown in Figure 4 a kind of baseball bat preparation method, comprises the steps:
Step 100, bar mould is given as security in cleaning
The signature bar mould giving as security bar shaping for bat is delivered to table, by after signature bar mold heated to temperature 70 C, mould inner surface butanone and mold cleaning agent are cleaned up, then brush hole sealing agent makes mould inner surface smooth, and brush mould release;
Step 200, baking steel core bar
Steel core bar 1 outer peripheral face as shown in Figure 1 of the mating shapes with baseball bat brushes silica gel solid, and stove plate steel core bar being placed on table toasts, when steel core bar surface is in white, stop baking;
As shown in Figure 1, the face area of steel core bar right-hand member is greater than the face area of left end, and the end face at steel core bar two ends is equipped with along the axially extended extension rod 6 of steel core bar, the extension rod end of right-hand member is provided with nut 7;
Step 300, the steel core bar after parcel baking
The bar shaped silica gel piece be made up of raw silica gel material is taken out from freezer and thaws, and press requirement specification pound weight.
As shown in Figure 2, the steel core bar after baking is wrapped up with the bar shaped silica gel piece 2 after pound weight; When bar shaped silica gel piece there being bubble, needing first with blade, bubble to be punctured, and then wrapping up steel core bar with bar shaped silica gel piece;
Step 400, it is shaping that bar given as security by bat
The steel core bar being enclosed with bar shaped silica gel piece put into and give as security bar mould, close and give as security bar mould and be sent on table, be 190 DEG C at the first forming temperature, the first molding time is 60 minutes, and the first briquetting pressure is the condition compacted under of 110 kilograms;
Step 500, bar given as security by the bat taking out forming
After first molding time reaches, take out giving as security bar by bar shaped silica gel piece and the shaping bat formed of steel core bar;
Arrange bat and give as security bar surface, silica gel material blade unnecessary for spue line place is pruned;
Step 600, makes bat preform
As shown in Figure 3, give as security bar at the bat of forming and overlap the nylon membrane pipe closed one end outward, nylon membrane tube opening end inserts vacuum tube, nylon membrane pipe and the air given as security between bar is extracted out, makes nylon membrane pipe be adjacent to bat and gives as security bar;
Give as security parcel 8 layers on bar outer peripheral face at the bat being enclosed with nylon membrane pipe and be attached with the carbon fiber yarn material 4 of viscous epoxy resin, obtain bat preform 5; Carbon fiber yarn material adopts the high rigidity carbon fibre braiding being stained with liquid-state epoxy resin to form.
Step 700, bat preform is shaping
Bat preform is put into baseball bat mould, is 140 DEG C at the second forming temperature, and the second molding time is 70 minutes, and the second briquetting pressure is the condition compacted under of 140 kilograms;
Step 800, the thick embryo forming of baseball bat
The bat preform of forming is taken out from mould, with instrument, the bat of forming is given as security bar and take out from bat preform, obtain the thick embryo of shaping baseball bat;
Step 900, repeats to make the thick embryo of other baseball bat
Repeat the thick embryo of baseball bat that step 600 to step 800 makes other.
Embodiment 2
In embodiment 2, as shown in Figure 5, steel core bar outer peripheral face is provided with screw thread, and the spacing of screw thread is 0.23cm, and the depth of thread is 0.30cm; With the carbon fiber yarn material in glass fiber yarn material alternative embodiment 1; Glass fiber yarn material adopts and is stained with that the high rigidity of liquid-state epoxy resin is fiberglass braided to be formed.
Other structure and the step part of embodiment 2 are all in the same manner as in Example 1.
Should be understood that the present embodiment is only not used in for illustration of the present invention to limit the scope of the invention.In addition should be understood that those skilled in the art can make various changes or modifications the present invention, and these equivalent form of values fall within the application's appended claims limited range equally after the content of having read the present invention's instruction.
Claims (9)
1. a baseball bat preparation method, is characterized in that, comprises the steps:
(6-1) the signature bar mould giving as security bar shaping for bat is delivered to table, by after signature bar mold heated to temperature T, mould inner surface is cleaned up, and brush mould release;
(6-2) on steel core bar (1) outer peripheral face of the mating shapes with baseball bat, brush silica gel solid, and stove plate steel core bar being placed on table toasts, when steel core bar surface is in white, stop baking;
(6-3) steel core bar after baking is wrapped up with the bar shaped silica gel piece (2) be made up of raw silica gel material;
(6-4) steel core bar being enclosed with bar shaped silica gel piece is put into signature bar mould, close and give as security bar mould and be sent on table, shaping in the first briquetting pressure, the first forming temperature and the first molding time;
(6-5), after the first molding time reaches, take out giving as security bar by bar shaped silica gel piece and the shaping bat formed of steel core bar;
(6-6) on the bat signature bar outer peripheral face of forming, wrap up carbon fiber yarn material (4) or the glass fiber yarn material that some layers are attached with viscous epoxy resin, obtain bat preform (5);
(6-7) bat preform is put into baseball bat mould, shaping in the second briquetting pressure, the second forming temperature and the second molding time;
(6-8) the bat preform of forming is taken out from mould, with instrument, the bat of forming is given as security bar and take out from bat preform, obtain the thick embryo of shaping baseball bat;
(6-9) the thick embryo of baseball bat that step (6-6) to step (6-8) makes other is repeated.
2. baseball bat preparation method according to claim 1, is characterized in that, described steel core bar outer peripheral face is provided with screw thread.
3. baseball bat preparation method according to claim 2, is characterized in that, the spacing of described screw thread is 0.23cm to 0.30cm, and the depth of thread is 0.25cm to 0.30cm.
4. baseball bat preparation method according to claim 1, it is characterized in that, the face area of described steel core bar right-hand member is greater than the face area of left end, the end face at steel core bar two ends is equipped with along the axially extended extension rod of steel core bar (6), the extension rod end of right-hand member is provided with nut (7).
5. baseball bat preparation method according to claim 1, is characterized in that, described first forming temperature is 165 DEG C to 210 DEG C, and described first molding time is 50 minutes to 70 minutes, and described first briquetting pressure is 105 to 155 kilograms.
6. baseball bat preparation method according to claim 1, is characterized in that, described second forming temperature is 125 DEG C to 160 DEG C, and described second molding time is 65 minutes to 80 minutes, and described second briquetting pressure is 102 to 152 kilograms.
7. baseball bat preparation method according to claim 1, is characterized in that, described T is 60 DEG C to 80 DEG C.
8. the baseball bat preparation method according to claim 1 or 2 or 3 or 4 or 5 or 6 or 7, it is characterized in that, described carbon fiber yarn material adopts the high rigidity carbon fibre braiding being stained with liquid-state epoxy resin to form, and the high rigidity that described glass fiber yarn material employing is stained with liquid-state epoxy resin is fiberglass braided to be formed.
9. the baseball bat preparation method according to claim 1 or 2 or 3 or 4 or 5 or 6 or 7, is characterized in that, when bar shaped silica gel piece there being bubble, needing first to be punctured by bubble with blade, and then wrapping up steel core bar with bar shaped silica gel piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510111277.6A CN104801027A (en) | 2015-03-13 | 2015-03-13 | Manufacture method for baseball bat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510111277.6A CN104801027A (en) | 2015-03-13 | 2015-03-13 | Manufacture method for baseball bat |
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| Publication Number | Publication Date |
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| CN104801027A true CN104801027A (en) | 2015-07-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510111277.6A Pending CN104801027A (en) | 2015-03-13 | 2015-03-13 | Manufacture method for baseball bat |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113021943A (en) * | 2021-03-10 | 2021-06-25 | 广州雷迅创新科技股份有限公司 | Composite material bent sheet forming method and die |
| CN114315399A (en) * | 2021-12-23 | 2022-04-12 | 湖南金博碳素股份有限公司 | Carbon/carbon composite die and preparation method and application thereof |
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| CA2345914A1 (en) * | 2000-05-02 | 2001-11-02 | Spalding Sports Worldwide, Inc. | Composite bat with metal barrel area and method of fabrication |
| CN102490372A (en) * | 2011-12-12 | 2012-06-13 | 中国科学院宁波材料技术与工程研究所 | Method for forming carbon fiber pipe and die thereof |
| CN103448257A (en) * | 2013-08-28 | 2013-12-18 | 中国科学院福建物质结构研究所 | Method for forming fiber reinforced composite tube |
| CN103831971A (en) * | 2012-11-23 | 2014-06-04 | 杨贤斌 | Silica gel inner core mould heating andcuring epoxy resin preimpregnated fiber forming method and product thereof |
| CN203647661U (en) * | 2013-12-15 | 2014-06-18 | 闫会昌 | Comfortable and durable walking stick |
| CN104162994A (en) * | 2014-08-08 | 2014-11-26 | 西安拓飞复合材料有限公司 | Manufacture method of carbon fiber parabolic antenna |
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2015
- 2015-03-13 CN CN201510111277.6A patent/CN104801027A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2345914A1 (en) * | 2000-05-02 | 2001-11-02 | Spalding Sports Worldwide, Inc. | Composite bat with metal barrel area and method of fabrication |
| CN102490372A (en) * | 2011-12-12 | 2012-06-13 | 中国科学院宁波材料技术与工程研究所 | Method for forming carbon fiber pipe and die thereof |
| CN103831971A (en) * | 2012-11-23 | 2014-06-04 | 杨贤斌 | Silica gel inner core mould heating andcuring epoxy resin preimpregnated fiber forming method and product thereof |
| CN103448257A (en) * | 2013-08-28 | 2013-12-18 | 中国科学院福建物质结构研究所 | Method for forming fiber reinforced composite tube |
| CN203647661U (en) * | 2013-12-15 | 2014-06-18 | 闫会昌 | Comfortable and durable walking stick |
| CN104162994A (en) * | 2014-08-08 | 2014-11-26 | 西安拓飞复合材料有限公司 | Manufacture method of carbon fiber parabolic antenna |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113021943A (en) * | 2021-03-10 | 2021-06-25 | 广州雷迅创新科技股份有限公司 | Composite material bent sheet forming method and die |
| CN114315399A (en) * | 2021-12-23 | 2022-04-12 | 湖南金博碳素股份有限公司 | Carbon/carbon composite die and preparation method and application thereof |
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Application publication date: 20150729 |
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