CN201020819Y - Inner-mould inlay injection membrane moulding device - Google Patents
Inner-mould inlay injection membrane moulding device Download PDFInfo
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- CN201020819Y CN201020819Y CNU2007200499496U CN200720049949U CN201020819Y CN 201020819 Y CN201020819 Y CN 201020819Y CN U2007200499496 U CNU2007200499496 U CN U2007200499496U CN 200720049949 U CN200720049949 U CN 200720049949U CN 201020819 Y CN201020819 Y CN 201020819Y
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- diaphragm
- mold frame
- lower die
- low mold
- blank holder
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Abstract
The utility model discloses a molding device for an in-mold insert injection molding film. The device comprises a lower die frame 1, a lower die 3, a binder ring 8, an upper die 7 and a heat transmission block 11. The lower die 3 is positioned in the lower die frame 1, to form the molding surface of a film 4 with the lower die frame 1, the lower end of the lower die frame 1 is connected with the heat transmission block 11, and the lower die frame 1 is also provided with a cooling channel 12; the binder ring 8 is a hollow cavity, the cavity edge of the hollow cavity is matched with the lower die frame 1, to be used for clamping the film 4; the upper die 7 is extended into the cavity of the binder ring 8 from the upper end center, to be matched with the lower die 3; the binder ring 8 is also provided with a through hole for connecting with the hollow cavity, or the through hole for connecting with the hollow cavity is arranged on the upper die 7. The utility model overcomes the problem that the character or the pattern shape and the position accuracy are poor in the traditional air heat forming method under high pressure.
Description
Technical field
The utility model relates to a kind of shaped device of built-in piece injection membrane in mould; particularly relate to the moulding of the built-in piece injection membrane in mould that the metal pattern mechanical pressure method of forming combines with the gas hot high pressure method of forming, the product casing manufacturing of industries such as the household electrical appliances of be applicable to that die cavity is dark, area is big, the shape of literal or pattern and position accuracy demand are higher, electronics, computer, automobile, instrument.
Background technology
At present, the in-mode inserts injection molding technology is widely used in industries such as household electrical appliances, electronics, computer, automobile, instrument.Traditional method is to put into make-up machine by the decorative membrance that will be printed on literal or pattern; utilize the method for vacuum forming, the moulding of metal pattern mechanical pressure or the moulding of gas hot high pressure; make the diaphragm moulding have the shell of shape of product; and then by injection molding process, diaphragm and plastic cement are combined into one and obtain final products.Vacuum forming also is a negative pressure plastics sucking moulding method, just can carry out more than the Tg value temperature that requires diaphragm to heat to reach softening point, causes the literal or the pattern deformation dislocation of diaphragm inside easily, and the pressure of vacuum forming 1kg/cm approximately only
2, be unsuitable for that moulding is thicker, crest line requirement product casing clearly.The metal pattern mechanical pressure method of forming has literal or the high advantage of pattern positioning accuracy, but have that the diaphragm degree of depth and angle radius are restricted, print surface is easily by shortcomings such as crushings; Gas high-pressure molding rule is to utilize gases at high pressure that diaphragm is carried out bulging and moulding, its advantage is that gas pressure is adjustable, can rapid shaping crest line product enclosure clearly, but had the shape of literal or pattern with positional precision is relatively poor, the easy shortcoming such as wrinkling of film.
Dark for the moulding die cavity, area is big, literal or pattern form and position accuracy demand is higher but diaphragm that tensile property is relatively poor; because there are above-mentioned shortcoming in vacuum forming, the metal pattern mechanical pressure method of forming or the gas hot high pressure method of forming; can not use separately, must seek a kind of new method.
The utility model content
The purpose of this utility model is to provide a kind of shaped device of built-in piece injection membrane in mould, the pull and stretch preformed and the air pressure expansion shape forming of the built-in piece injection membrane in mould of solve effectively that die cavity is dark, area is big, the shape of literal or pattern and position accuracy demand are higher.
The purpose of this utility model is achieved through the following technical solutions:
A kind of shaped device of built-in piece injection membrane in mould comprises low mold frame, counterdie, blank holder and heat transfer block, and counterdie is arranged in low mold frame, constitutes the forming surface of diaphragm with low mold frame, and the low mold frame lower end is connected with heat transfer block, and low mold frame also is provided with the cooling duct; Blank holder is hollow cavity, and its cavity edge cooperates with low mold frame, compresses diaphragm; Described device also comprises patrix, and patrix stretches in the cavity of blank holder from center, blank holder upper end, cooperates with counterdie, and blank holder also has the through hole that is communicated with hollow cavity, perhaps is provided with the through hole that is communicated with hollow cavity on patrix.
With respect to prior art, the utlity model has following beneficial effect:
(1) because the utility model in conjunction with the metal pattern mechanical pressure method of forming and the gas hot high pressure method of forming, has overcome the technical problem of literal or pattern form and positional precision difference;
(2) gas pressure is controlled, is enough to satisfy the working ability requirement of various diaphragms, and the diaphragm after the moulding is not prone to and breaks, and product surface details and crest line are clear;
(3) use the utility model device, can solve the bad thin-film sheet of draftability and the gauffer problem occur; By pull and stretch, make periphery have more diaphragm material to enter and participate in the air pressure bulging in the die cavity, help that shaping area is big, the darker product of die cavity.
Description of drawings
Fig. 1 is the shaped device structural representation of the utility model built-in piece injection membrane in mould;
Fig. 2 is the shaped device drawing process schematic diagram of the utility model built-in piece injection membrane in mould;
Fig. 3 is the shaped device air pressure bulging process schematic diagram of the utility model built-in piece injection membrane in mould.
Shown in the figure: 1. low mold frame, 2. spring, 3. counterdie, 4. diaphragm, 5. gas-tpe fitting, 6. tracheae, 7. patrix, 8. blank holder, 9. pattern in the diaphragm or literal, 10. water pipe and joint, 11. heat transfer blocks, 12. cooling ducts.
The specific embodiment
Below in conjunction with drawings and Examples the utility model is further described, but the claimed scope of the utility model is not limited to the scope of embodiment statement.
As shown in Figure 1, the shaped device of built-in piece injection membrane in mould comprises low mold frame 1, counterdie 3, patrix 7, blank holder 8 and heat transfer block 11.Counterdie 3 is arranged in low mold frame 1, constitutes the forming surface of diaphragm 4 with low mold frame 1, and low mold frame 1 lower end is connected with heat transfer block 11, and low mold frame 1 also is provided with cooling duct 12; Blank holder 8 is hollow cavity, its cavity edge cooperates with low mold frame 1, be used to compress diaphragm 4, patrix 7 stretches into from center, blank holder 8 upper end in the cavity of blank holder 8 and cooperates with counterdie 3, blank holder 8 also has the through hole that is communicated with hollow cavity, gas-tpe fitting 5 is installed in the through hole, and gas-tpe fitting 5 is connected with tracheae 6; Water pipe and joint 10 are connected with cooling duct 12.Be provided with spring 3 at low mold frame 1 and counterdie 3, be used for the pull and stretch and the discharging of diaphragm.
Diaphragm parameters: length is taken advantage of wide about 250 * 300mm, and thick about 0.25mm, material are ABS, about 100 ℃ of its Tg temperature, and the pull and stretch temperature is got 90 ℃, and air pressure bulging temperature is got 150 ℃.
Make purposes: the notebook computer panel shell of making the about deeply 10mm of die cavity.
In Fig. 1, the diaphragm 4 that includes pattern or literal 9 is located and is placed on the low mold frame 1, and movable counterdie 3 is posted by the bottom of diaphragm 4; Heat is passed to diaphragm 4 from heat transfer block 11 by low mold frame 1 and is carried out preheating; Diaphragm 4 is to be formed by transparent ABS material preparation, and the preheat temperature of diaphragm 4 on low mold frame is controlled at 90 ℃.
In Fig. 2, after diaphragm 4 preheatings, blank holder 8 moves downwards, blank holder 8 is pushed down diaphragm 4 earlier, patrix 7 moves downwards then, pushes down diaphragm 4 back and move downwards with counterdie 3, make zone that diaphragm 4 contains higher literal of shape and position accuracy demand or pattern 9 places in advance at the beginning of one-step forming; After patrix 7 and counterdie 3 compress diaphragm 4, heat transfer block 11 heating, heat is passed to diaphragm 4 by low mold frame 1, reaches 150 ℃ up to the temperature of diaphragm 4.In the present embodiment, the pressure-pad-force of blank holder 8 is adjustable, and diaphragm 4 material when moulding can be flowed freely.
In Fig. 3, after the temperature of diaphragm 4 reaches 150 ℃, apply about 2kg/cm
2Gas pressure, this gas can be air, nitrogen, argon gas etc., this embodiment is an air, gas is to enter in the closed chamber of being made up of blank holder 8, diaphragm 4, patrix 7 by tracheae 6 and gas-tpe fitting 5, diaphragm 4 after softening is close to the forming surface of being made up of counterdie 3 and low mold frame 1 under the effect of air pressure, and moulding.After the diaphragm moulding, cooling water enters cooling duct 12 low mold frame 1 from water pipe and joint 10, makes the diaphragm cooling and shaping, and patrix and blank holder be operation upwards, sheds pressure, and counterdie 3 ejects diaphragm 4 under the effect of spring 2.
Diaphragm parameters: length is taken advantage of wide about 100 * 50mm, and thick about 0.188mm, material are PET, about 165 ℃ of its Tg temperature, and the pull and stretch temperature is got 120 ℃, and gas bulging temperature is got 200 ℃.
Make purposes: certain cosmetic container shell of making the about deeply 4mm of die cavity.
The diaphragm 4 that includes pattern or literal 9 is located and is placed on the low mold frame 1, and movable counterdie 3 is posted by the bottom of diaphragm 4; Heat is passed to diaphragm 4 from heat transfer block 11 by low mold frame 1 and is carried out preheating; Diaphragm 4 is to be formed by transparent PET material preparation, and the preheat temperature of diaphragm 4 on low mold frame is controlled at 120 ℃.Different with Fig. 1 is, blank holder 8 is not offered the through hole that is communicated with hollow cavity, but is provided with the through hole that is communicated with hollow cavity on patrix, and gas-tpe fitting 5 is installed in the through hole, and gas-tpe fitting 5 is connected with tracheae 6.
After diaphragm 4 preheatings, blank holder 8 moves downwards, and blank holder 8 is pushed down diaphragm 4 earlier, and patrix 7 moves downwards then, push down diaphragm 4 back and move downwards with counterdie 3, make zone that diaphragm 4 contains higher literal of shape and position accuracy demand or pattern 9 places in advance at the beginning of one-step forming; After patrix 7 and counterdie 3 compress diaphragm 4, heat transfer block 11 heating, heat is passed to diaphragm 4 by low mold frame 1, reaches 200 ℃ up to the temperature of diaphragm 4.In the present embodiment, the pressure-pad-force of blank holder 8 is adjustable, and diaphragm 4 material when moulding can be flowed freely.
After the temperature of diaphragm 4 reaches 200 ℃, apply about 1kg/cm
2Gas pressure, this gas can be air, nitrogen, argon gas etc., this embodiment is an air, gas is to enter in the closed chamber of being made up of blank holder 8, diaphragm 4, patrix 7 by tracheae 6 and gas-tpe fitting 5, and the diaphragm 4 after softening is close to the forming surface be made up of counterdie 3 and low mold frame 1 and moulding under the effect of gas pressure.After the diaphragm moulding, cooling water enters cooling duct 12 low mold frame 1 from water pipe and joint 10, makes the diaphragm cooling and shaping, and patrix and blank holder be operation upwards, sheds pressure, and counterdie 3 ejects diaphragm 4 under the effect of spring 2.
The utility model has been taked the metal pattern mechanical pressure method of forming and the mode that the gas hot high pressure method of forming combines, and has overcome the problem that traditional gas hot high pressure method of forming exists literal or pattern form and positional precision difference; The pull and stretch temperature is controlled at the following a certain temperature range of Tg value, can solve the bad thin-film sheet of draftability and the gauffer problem occur; By pull and stretch, make periphery have more diaphragm material to enter and participate in the gas bulging in the die cavity, help that shaping area is big, the darker product of die cavity; The utility model gas pressure is controlled, is enough to satisfy the working ability requirement of various diaphragms, and the diaphragm after the moulding is not prone to and breaks, and product surface details and crest line are clear.Therefore the utility model can be widely used in the forming field of the built-in piece injection membrane in mould of industries such as household electrical appliances, electronics, computer, automobile, instrument, is fit to especially that area is big, die cavity is dark, literal or the shape of pattern and the moulding of its diaphragm of position accuracy demand high product.
Claims (2)
1. the shaped device of a built-in piece injection membrane in mould, comprise low mold frame (1), counterdie (3), blank holder (8) and heat transfer block (11), counterdie (3) is arranged in low mold frame (1), constitute the forming surface of diaphragm (4) with low mold frame (1), low mold frame (1) lower end is connected with heat transfer block (11), and low mold frame (1) also is provided with cooling duct (12); Blank holder (8) is hollow cavity, and its cavity edge cooperates with low mold frame (1), compresses diaphragm (4); It is characterized in that described device also comprises patrix (7), patrix (7) stretches in the cavity of blank holder (8) from center, blank holder (8) upper end, cooperates with counterdie (3); Blank holder (8) also has the through hole that is communicated with hollow cavity, perhaps is provided with the through hole of the hollow cavity of connection on patrix (7).
2. the shaped device of built-in piece injection membrane in mould according to claim 1 is characterized in that, is provided with spring (2) at low mold frame (1) and counterdie (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200499496U CN201020819Y (en) | 2007-04-03 | 2007-04-03 | Inner-mould inlay injection membrane moulding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200499496U CN201020819Y (en) | 2007-04-03 | 2007-04-03 | Inner-mould inlay injection membrane moulding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201020819Y true CN201020819Y (en) | 2008-02-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200499496U Expired - Fee Related CN201020819Y (en) | 2007-04-03 | 2007-04-03 | Inner-mould inlay injection membrane moulding device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201020819Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102198725A (en) * | 2011-04-20 | 2011-09-28 | 鹏达精密包装材料（上海）有限公司 | Plastic suction mold and molding method thereof |
| CN103770239A (en) * | 2012-10-24 | 2014-05-07 | 上海富亿德塑胶有限公司 | In-mold nylon net cloth performing device |
| CN105500582A (en) * | 2016-01-20 | 2016-04-20 | 东台市华威标准件有限公司 | Forming component |
-
2007
- 2007-04-03 CN CNU2007200499496U patent/CN201020819Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102198725A (en) * | 2011-04-20 | 2011-09-28 | 鹏达精密包装材料（上海）有限公司 | Plastic suction mold and molding method thereof |
| CN103770239A (en) * | 2012-10-24 | 2014-05-07 | 上海富亿德塑胶有限公司 | In-mold nylon net cloth performing device |
| CN105500582A (en) * | 2016-01-20 | 2016-04-20 | 东台市华威标准件有限公司 | Forming component |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080213 Termination date: 20130403 |