CN104325602A - Injection molding method and injection mold of small closed junction box - Google Patents
Injection molding method and injection mold of small closed junction box Download PDFInfo
- Publication number
- CN104325602A CN104325602A CN201410590753.2A CN201410590753A CN104325602A CN 104325602 A CN104325602 A CN 104325602A CN 201410590753 A CN201410590753 A CN 201410590753A CN 104325602 A CN104325602 A CN 104325602A
- Authority
- CN
- China
- Prior art keywords
- terminal box
- guide rail
- movable block
- die cavity
- glue
- Prior art date
- 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.)
- Pending
Links
- 238000002347 injection Methods 0.000 title claims abstract description 17
- 239000007924 injection Substances 0.000 title claims abstract description 17
- 238000001746 injection moulding Methods 0.000 title claims abstract description 14
- 238000007514 turning Methods 0.000 claims abstract description 31
- 229920003023 plastic Polymers 0.000 claims abstract description 12
- 239000004033 plastic Substances 0.000 claims abstract description 12
- 239000003292 glue Substances 0.000 claims description 38
- 230000003139 buffering effect Effects 0.000 claims description 13
- 239000004568 cement Substances 0.000 claims description 7
- 238000000034 method Methods 0.000 claims 1
- 238000004382 potting Methods 0.000 abstract 1
- 238000006073 displacement reaction Methods 0.000 description 4
- 238000007789 sealing Methods 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 238000007598 dipping method Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012797 qualification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Classifications
-
- 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
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
-
- 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
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/2602—Mould construction elements
-
- 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
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/27—Sprue channels ; Runner channels or runner nozzles
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention relates to an injection molding method of a small closed junction box. The injection molding method comprises the following steps: (1) clamping and straightening cables on both ends of the junction box by clamping devices; (2) injecting plastics to an injection point, wherein the plastics enter a mold cavity of the junction box after passing one or more turnings. The invention further relates to an injection mold of the small closed junction box. The injection mold comprises a forming mold, wherein the mold cavity of the junction box is formed in the forming mold, cable guiding grooves are formed in both ends of the mold cavity of the junction box, the clamping devices which are used for clamping and straightening the cables are arranged on both sides of the cable guiding grooves, the injection point for potting is arranged on one side of the mold cavity of the junction box and is communicated with a plastic inlet point on one side of the mold cavity of the junction box by virtue of a plastic inlet channel, and the one or more turnings are formed in the plastic inlet channel.
Description
Technical field
The present invention relates to a kind of injection moulding process for small enclosed terminal box and injection mold.
Background technology
As shown in Figure 1, small enclosed terminal box is compared to general terminal box, and small volume, inside generally only arranges a diode, and two ends connect photovoltaic connector by cable.During injection moulding, charging can produce certain impulsive force, and this burst of impulsive force can have influence on the connection of cable and diode, causes it to bend and then affects its connection reliability and sealing.Therefore need to eliminate the impulsive force of supplied materials, in prior art, be generally shapingly avoid above-mentioned phenomenon by twice, but which increase production cost, make production technology also more complicated.
Summary of the invention
In order to overcome above-mentioned deficiency in prior art, the invention provides injection moulding process and the injection mold of the impact can eliminating the impulsive force butted line box that charging brings.
The technical scheme that the present invention solves its technical problem is:
A kind of small enclosed terminal box injection moulding process, is characterized in that:
(1) by clamping device, the cable at terminal box two ends is carried out clamping stretching;
(2) plastic cement is injected into decanting point and enters terminal box die cavity after turning round together or together.
A kind of small enclosed terminal box injection mold, comprise mould, described mould is arranged terminal box die cavity, it is characterized in that: the two ends of described terminal box die cavity arrange cable metallic channel, the both sides of cable metallic channel are arranged can carry out clamping stretching clamping device to cable, the side of described terminal box die cavity arranges the decanting point carrying out encapsulating, what described decanting point passed through to be positioned at terminal box die cavity side into glue channel connection enters glue point, and described enters the one or more turning of glue channel setting.
As preferably, the turning of entering on glue passage is provided with two, and the described glue channel setting that enters is " Z " font.
As preferably, turning arranges buffering extension.
As preferably, clamping device comprises and is arranged on mould both sides and can the first guide rail of longitudinal sliding motion and the second guide rail, the first described guide rail, the front end of the second guide rail is arranged respectively to outer incline, first guide rail, second guide rail is arranged with the first movable block, second movable block, the first described movable block, second movable block is arranged on the both sides of mould, the first described movable block, second movable block is arranged respectively can the first fixture block of clamping cables line, second fixture block, the first described guide rail, second guide rail longitudinal sliding motion drives the first movable block, second movable block laterally slides.
As preferably, the first guide rail, the second guide rail are linked together by cross bar, and described cross bar connects the cylinder rod of a cylinder.
Injection moulding process is: during plastic cement charging, first by clamping device, the cable being connected with diode is carried out tension to stretch, such when can reduce charging due to the impact of impulsive force butted line box, prevent it from becoming bending deformation, after being injected by decanting point, after the reduction impulsive force of turning round of more than together or one, enter terminal box die cavity again.Setting of turning round when carrying out stretching and encapsulating by butted line box, all substantially reduces the impact of charging butted line box, improves qualification rate and the performance of product.
The concrete structure of injection mold is: arrange clamping device in the mould both sides arranging terminal box die cavity, clamping device comprises can the first fixture block of clamping cables line, second fixture block, first fixture block, second fixture block is separately fixed at the first movable block, on second movable block, when cylinder promotes the first guide rail by cross bar, when second guide rail vertically moves, first guide rail, the inclined-plane that the front end of the second guide rail is outward-dipping moves to the first movable block, during the second movable block position, first movable block, second movable block generation lateral displacement, thus realize the first fixture block, stretching or the relaxation state of second fixture block butted line box clamping, terminal box after stretching, greatly can reduce the impact of impulsive force on it of charging.
Decanting point and the entering between glue point of terminal box die cavity of injecting glue arrange into glue passage, enter on glue passage and be provided with one or more turning, turning can be provided with two, thus to enter glue channel setting be " Z " font, when then entering glue, plastic cement is first cushioned by turning, greatly reduce the impulsive force that it brings, turning can also arrange buffering extension, buffering effect is better, buffering extension, and actual is to have stretched out a part into glue passage at upper reaches, turning side, realize backflow, buffering effect is better.Certainly enter glue passage and can also be set to other shapes, as long as can realize reducing impulsive force.
Clamping device butted line box carries out stretching, and butted line box is fixed itself, prevents it to be out of shape.Glue first weakens impulsive force by turning before passing through to enter in die cavity into glue point, then avoid butted line box to cause displacement or distortion.
Beneficial effect of the present invention: the present invention clamping device butted line box carry out stretching, enter double action that glue passage cushions charging under, the impulsive force of injection moulding charging is less on its impact, ensures connection reliability and the sealing of the diode of low profile photovoltaic terminal box.
Accompanying drawing explanation
Fig. 1 is the structural representation of small enclosed terminal box.
Fig. 2 is structural representation of the present invention.
Fig. 3 is the part-structure schematic diagram of Fig. 2.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
A kind of small enclosed terminal box injection moulding process,
(1) by clamping device, the cable at terminal box two ends is carried out clamping stretching;
(2) plastic cement is injected into decanting point and enters terminal box die cavity after turning round together or together.
As shown in Figure 2,3, a kind of small enclosed terminal box injection mold, comprise mould 1, described mould is arranged terminal box die cavity 8, the two ends of terminal box die cavity arrange cable metallic channel, the both sides of cable metallic channel are arranged can carry out clamping stretching clamping device to cable, the side of described terminal box die cavity arranges the decanting point 2 carrying out encapsulating, described decanting point 2 pass through into glue passage 3 be communicated be positioned at terminal box die cavity side enter glue point 5, enter glue passage 3 and one or more turning be set.The turning of entering on glue passage 3 is provided with two, and the described glue channel setting that enters is " Z " font, can certainly be set to other shapes.Also arrange buffering extension 4 at the turning entering glue passage, buffering extension is that the side of upstream extends one section of formation, strengthens the buffering effect at turning.
Clamping device comprises and is arranged on mould both sides and can the first guide rail 12 and the second guide rail 9 of longitudinal sliding motion, the first described guide rail 12, the front end of the second guide rail 9 is arranged respectively to outer incline, first guide rail, second guide rail is arranged with the first movable block 11, second movable block 7, the first described movable block, second movable block is arranged on the both sides of mould, the first described movable block, second movable block is arranged respectively can the first fixture block 10 of clamping cables line, second fixture block 6, the first described guide rail, second guide rail longitudinal sliding motion drives the first movable block, second movable block laterally slides.As shown in Figure 3, the first guide rail 12, second guide rail 9 is linked together by cross bar 13, and described cross bar connects the cylinder rod of a cylinder.
Injection moulding process is: during plastic cement charging, first by clamping device, the cable being connected with diode is carried out tension to stretch, such when can reduce charging due to the impact of impulsive force butted line box, prevent it from becoming bending deformation, after being injected by decanting point 2, after the reduction impulsive force of turning round of more than together or one, enter terminal box die cavity 8 again.Setting of turning round when carrying out stretching and encapsulating by butted line box, all substantially reduces the impact of charging butted line box, improves qualification rate and the performance of product.
The concrete structure of injection mold is: arrange clamping device in the mould both sides arranging terminal box die cavity, clamping device comprises can the first fixture block 10 of clamping cables line, second fixture block 6, first fixture block, second fixture block is separately fixed at the first movable block 11, on second movable block 7, when cylinder promotes the first guide rail 12 by cross bar 13, when second guide rail 9 vertically moves, first guide rail, the inclined-plane that the front end of the second guide rail is outward-dipping moves to the first movable block 11, during the second movable block 7 position, first movable block, second movable block generation lateral displacement, thus realize the first fixture block, stretching or the relaxation state of second fixture block butted line box clamping, terminal box after stretching, greatly can reduce the impact of impulsive force on it of charging.
Decanting point 2 and the entering between glue point 5 of terminal box die cavity of injecting glue arrange into glue passage 3, enter on glue passage 3 and be provided with one or more turning, turning can be provided with two, thus to enter glue channel setting be " Z " font, when then entering glue, plastic cement is first cushioned by turning, greatly reduce the impulsive force that it brings, turning can also arrange buffering extension 4, buffering effect is better, buffering extension, and actual is to have stretched out a part into glue passage at upper reaches, turning side, realize backflow, buffering effect is better.Certainly enter glue passage and can also be set to other shapes, as long as can realize reducing impulsive force.
Clamping device butted line box carries out stretching, and butted line box is fixed itself, prevents it to be out of shape.Glue first weakens impulsive force by turning before passing through to enter in die cavity into glue point, then avoid butted line box to cause displacement or distortion.
The present invention clamping device butted line box carry out stretching, enter double action that glue passage cushions charging under, the impulsive force of injection moulding charging is less on its impact, ensures connection reliability and the sealing of the diode of low profile photovoltaic terminal box.
Claims (6)
1. a small enclosed terminal box injection moulding process, is characterized in that:
(1) by clamping device, the cable at terminal box two ends is carried out clamping stretching;
(2) plastic cement is injected into decanting point and enters terminal box die cavity after turning round together or together.
2. adopt a kind of small enclosed terminal box injection mold of method as claimed in claim 1, comprise mould, described mould is arranged terminal box die cavity, it is characterized in that: the two ends of described terminal box die cavity arrange cable metallic channel, the both sides of cable metallic channel are arranged can carry out clamping stretching clamping device to cable, the side of described terminal box die cavity arranges the decanting point carrying out encapsulating, what described decanting point passed through to be positioned at terminal box die cavity side into glue channel connection enters glue point, described enters the one or more turning of glue channel setting.
3. a kind of small enclosed terminal box injection mold according to claim 2, is characterized in that: the described turning of entering on glue passage is provided with two, and the described glue channel setting that enters is " Z " font.
4. a kind of small enclosed terminal box injection mold according to claim 3, is characterized in that: described turning arranges buffering extension.
5. a kind of small enclosed terminal box injection mold according to claim 4, it is characterized in that: described clamping device comprises and is arranged on mould both sides and can the first guide rail of longitudinal sliding motion and the second guide rail, the first described guide rail, the front end of the second guide rail is arranged respectively to outer incline, first guide rail, second guide rail is arranged with the first movable block, second movable block, the first described movable block, second movable block is arranged on the both sides of mould, the first described movable block, second movable block is arranged respectively can the first fixture block of clamping cables line, second fixture block, the first described guide rail, second guide rail longitudinal sliding motion drives the first movable block, second movable block laterally slides.
6. a kind of small enclosed terminal box injection mold according to claim 5, is characterized in that: the first described guide rail, the second guide rail are linked together by cross bar, and described cross bar connects the cylinder rod of a cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410590753.2A CN104325602A (en) | 2014-10-29 | 2014-10-29 | Injection molding method and injection mold of small closed junction box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410590753.2A CN104325602A (en) | 2014-10-29 | 2014-10-29 | Injection molding method and injection mold of small closed junction box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104325602A true CN104325602A (en) | 2015-02-04 |
Family
ID=52400470
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410590753.2A Pending CN104325602A (en) | 2014-10-29 | 2014-10-29 | Injection molding method and injection mold of small closed junction box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104325602A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102615778A (en) * | 2011-02-01 | 2012-08-01 | 广达电脑股份有限公司 | Plastic Injection Molding System |
| CN202826277U (en) * | 2012-09-25 | 2013-03-27 | 昆山市浩坤机械有限公司 | Mould rubber inlet runner structure for manufacturing plastic upper cover of display |
| CN202922899U (en) * | 2012-11-22 | 2013-05-08 | 青岛佳友模具科技有限公司 | Injection mold gate |
| CN203125869U (en) * | 2013-03-05 | 2013-08-14 | 浙江创源光伏科技有限公司 | Injection mould of small photovoltaic junction box |
| CN203805249U (en) * | 2013-12-17 | 2014-09-03 | 保定市易通光伏科技有限公司 | Injection mould of junction box |
-
2014
- 2014-10-29 CN CN201410590753.2A patent/CN104325602A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102615778A (en) * | 2011-02-01 | 2012-08-01 | 广达电脑股份有限公司 | Plastic Injection Molding System |
| CN202826277U (en) * | 2012-09-25 | 2013-03-27 | 昆山市浩坤机械有限公司 | Mould rubber inlet runner structure for manufacturing plastic upper cover of display |
| CN202922899U (en) * | 2012-11-22 | 2013-05-08 | 青岛佳友模具科技有限公司 | Injection mold gate |
| CN203125869U (en) * | 2013-03-05 | 2013-08-14 | 浙江创源光伏科技有限公司 | Injection mould of small photovoltaic junction box |
| CN203805249U (en) * | 2013-12-17 | 2014-09-03 | 保定市易通光伏科技有限公司 | Injection mould of junction box |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150204 |
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| RJ01 | Rejection of invention patent application after publication |