CN101428471B - Thermal forming mould - Google Patents
Thermal forming mould Download PDFInfo
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- CN101428471B CN101428471B CN 200810219734 CN200810219734A CN101428471B CN 101428471 B CN101428471 B CN 101428471B CN 200810219734 CN200810219734 CN 200810219734 CN 200810219734 A CN200810219734 A CN 200810219734A CN 101428471 B CN101428471 B CN 101428471B
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Abstract
A thermoforming die comprises an upper die and a lower die, wherein, the upper die comprises an upper die plate, an upper shearing die and a material press ring; the upper shearing die is mounted on the upper die plate; a cavity is formed in the upper shearing die; the material press ring is arranged in the cavity of the upper shearing die; the lower die comprises a lower die plate, a lower shearing die and a forming die; the lower shearing die is fixedly mounted on the lower die plate; a cavity is formed in the lower shearing die; and the forming die is arranged in the cavity of the shearing die. The thermoforming die is characterized in that the lower die further comprises a forming die lifting drive mechanism which is connected with the forming die; and the upper end surface of the lower shearing die is matched with the lower end surface of the material press ring, and the positions thereof correspond to each other. The thermoforming die is characterized in that during the manufacturing process of plastic products with left-hand thread structure, a plastic product is pressed on the lower shearing die by the material press ring when in demoulding; and the forming die lifting drive mechanism drives the forming die to fall in the cavity of the lower shearing die so as to allow the left-hand thread structure of the plastic product to detach the forming die, thereby finishing the demoulding process smoothly, preventing the plastic product from being deformed or damaged, and ensuring the quality of the product.
Description
Technical field
The present invention relates to thermal forming device, specifically, relate to a kind of hot forming tool that is used for thermoforming machine.
Background technology
Existing a kind of hot forming tool that is used to make plastic products (as plastic cup, plastics box etc.) can be finished moulding, shear action, can obtain goods after the demoulding.
This hot forming tool comprises upper die and lower die.
Patrix comprises cope match-plate pattern, goes up cut-off-die, binder ring and stretching bar.Last cut-off-die is installed on the cope match-plate pattern, and last cut-off-die has a cavity, and the inner edge of going up the cut-off-die lower end usually is last shearing knife edge.The binder ring can move up and down in the cavity of last cut-off-die, and the compression spring is housed between binder ring and the cope match-plate pattern; There is sealing ring in the binder ring outside, makes the binder ring upper end and the cavity inner wall of last cut-off-die form pressure air chamber, and pressure air chamber can feed Compressed Gas, to adjust the binder pressure of binder ring.The stretching bar can move up and down; Stretching bar lower end connects stretching head, and stretching head is located in the cavity of cut-off-die, and under the drive of stretching bar, stretching head can move up and down in the cavity of last cut-off-die; Stretching bar upper end connects stretching bar installing plate, and stretching bar installing plate connects the piston rod of draft cylinder, and draft cylinder is used to drive the stretching bar and moves up and down.
Counterdie comprises lower bolster, following cut-off-die, shaping mould and knock-pin.Following cut-off-die is fixedly mounted on the lower bolster, and following cut-off-die has a cavity, and descending the outer rim of cut-off-die upper end usually is the down cut blade, and down cut blade and last shearing knife edge are complementary.Shaping mould is fixedly mounted on the lower bolster and is in the cavity of following cut-off-die; The bottom of shaping mould is provided with movable bed die, and movable bed die is connected with the upper end of knock-pin, and the lower end of knock-pin extend out to the lower bolster below and connects the knock-pin installing plate, and the knock-pin installing plate is connected with the knock-pin lift drive mechanism.In addition,, recirculated cooling water road in the mould is set also usually, shaping mould and movable bed die are cooled off, make the goods fast cooling shaping for shortening molding cycle.
When making plastic products, at first, make plastic sheet reach forming temperature to the plastic sheet heating; Plastic sheet process forming area through heating, this moment the hot forming tool matched moulds, the binder ring is pressed on down sheet material on the upper surface of cut-off-die and/or shaping mould, between plastic sheet and binder ring, form the moulding air chamber, the stretching of draft cylinder drive subsequently bar installing plate, stretching bar and stretching head down move, and plastic sheet tentatively is drawn into and the stretching head similar shapes; Feed compressed air then in the moulding air chamber, under compressed-air actuated effect, plastic sheet is close to shaping mould, and cool off shaping mould on the recirculated cooling water road in the mould subsequently, and formed sheet is formalized; Formed sheet after the setting is finished shear action by last shearing knife edge and down cut blade, and plastic products are sheared from formed sheet, obtains single plastic products; Then the knock-pin lift drive mechanism drives knock-pin installing plate, knock-pin and the rising of movable bed die, and plastic products are ejected from shaping mould, makes plastic products be detached into pattern; Then to plastic products blowings, with the plastic products hot forming tool that blows off.
During this hot forming tool demoulding, rely on the thrust of knock-pin that plastic products are ejected from shaping mould, finish demoulding action, but, some plastic products is (as plastic cup, plastics box etc.) need cooperate with lid, in order to make lid and plastic products fastening and to keep good sealing, must the left-hand thread structure be set in the opening outer of plastic products, the opening outer that is to say the plastic products of moulding has the left-hand thread structure, like this, the left-hand thread structure of the shearing the back plastic products corresponding position of shaping mould of linking closely, if when the demoulding, directly adopt knock-pin to eject plastic products, the left-hand thread structure of plastic products is broken away from from shaping mould, eject and be easy to cause plastic products distortion or damage in the process, produce a large amount of substandard products and waste product.
Summary of the invention
Technical problem to be solved by this invention provides a kind of hot forming tool that can make the smooth demoulding of plastic products with left-hand thread structure.The technical scheme that adopts is as follows:
A kind of hot forming tool comprises upper die and lower die; Patrix comprises cope match-plate pattern, goes up cut-off-die and binder ring, and last cut-off-die is installed on the cope match-plate pattern, and last cut-off-die has a cavity, and binder is located in the cavity of cut-off-die; Counterdie comprises lower bolster, following cut-off-die and shaping mould, following cut-off-die is fixedly mounted on the lower bolster, following cut-off-die has a cavity, shaping mould is located at down in the cavity of cut-off-die, it is characterized in that: described counterdie also comprises the shaping mould lift drive mechanism that can drive shaping mould lifting in the cavity of following cut-off-die, and the shaping mould lift drive mechanism is connected with shaping mould; The upper surface of following cut-off-die be complementary with the lower surface of binder ring and the position corresponding.
The effect of above-mentioned shaping mould lift drive mechanism is: during the demoulding, drive shaping mould and descend in the cavity of cut-off-die down (this moment, plastic products were pressed on by the binder ring down on the cut-off-die), the left-hand thread structure and the shaping mould of plastic products are separated; After finishing the demoulding, drive shaping mould and in the cavity of following cut-off-die, rise, make shaping mould return back to the moulding desired position.
Preferred above-mentioned shaping mould lift drive mechanism comprises demoulding cylinder, and the cylinder body of demoulding cylinder is installed on the lower bolster, and the piston rod of demoulding cylinder is connected with shaping mould.Usually, shaping mould can be installed on the shaping mould installing plate, the piston rod of demoulding cylinder is connected with the shaping mould installing plate.
In order to make shaping mould lifting reposefully, the above-mentioned madial wall of cut-off-die cavity down and the lateral wall of shaping mould are complementary, and shaping mould is slidingly matched with following cut-off-die cavity, that is to say the lifting reposefully of the bootable shaping mould of the madial wall of following cut-off-die cavity.
Preferred above-mentioned counterdie also comprises knock-pin, knock-pin installing plate and knock-pin lift drive mechanism; the bottom of shaping mould is provided with movable bed die; movable bed die and shaping mould are separate; movable bed die is connected with the upper end of knock-pin; the lower end of knock-pin extend out to the lower bolster below and connects the knock-pin installing plate, and the knock-pin installing plate is connected with the knock-pin lift drive mechanism.During the demoulding, after the left-hand thread structure of plastic products was detached into pattern, knock-pin rose and plastic products is ejected.
In addition,, recirculated cooling water road in the mould is set also usually, shaping mould and/or movable bed die are cooled off, make the goods fast cooling shaping for shortening molding cycle.In a concrete scheme, the recirculated cooling water route is located at the cooling-water duct in the knock-pin in the mould, the cooling-water duct of being located in the movable bed die constitutes.
Usually the inner edge of going up the cut-off-die lower end is last shearing knife edge, and the outer rim of following cut-off-die upper end is the down cut blade, and down cut blade and last shearing knife edge are complementary.
Above-mentioned binder ring can move up and down in the cavity of last cut-off-die, and there is sealing ring in the binder ring outside, makes the cavity inner wall of binder ring and last cut-off-die form pressure air chamber.When patrix and counterdie matched moulds, feed Compressed Gas in the pressure air chamber, circulating application adds downward thrust to Compressed Gas to binder, and the binder ring is pressed on down sheet material on the cut-off-die.By regulating the air pressure of Compressed Gas, the pressure of adjustable seamless material ring.
For the binder ring is steadily moved, preferably be provided with guide section on the top of binder ring, cope match-plate pattern is provided with the guide pin bushing of trend up and down, and the top of binder ring is in this guide pin bushing and with this guide pin bushing and is slidingly matched.
In order to regulate the stroke of binder ring, make the binder ring apply suitable pressure to sheet material, the top of preferred binder ring is provided with thread segment, and thread segment is in the top of guide section, and adjusting nut is installed on the thread segment.When patrix separates with counterdie, under the gravity effect, cut-off-die is stretched out in the lower end of binder ring, the lower surface of adjusting nut contacts (when being provided with guide pin bushing with cope match-plate pattern, the lower surface of adjusting nut contacts with guide pin bushing), therefore, by adjusting the installation site of adjusting nut on thread segment, the length that can regulate the lower end extension of binder ring.
When adopting positive pressure thermoforming technology, the binder ring has a cavity, and the sidewall of last cut-off-die is provided with the Compressed Gas admission passage, and the sidewall of binder ring is provided with at least one air inlet, and air inlet is communicated with the cavity of Compressed Gas admission passage with the binder ring.During the hot forming tool matched moulds, the binder ring is pressed on down sheet material on the upper surface of cut-off-die, between plastic sheet and binder ring cavity body, form the moulding air chamber, the compressed gas admission passage of compressed air, air inlet enter in the moulding air chamber, under compressed-air actuated effect, plastic sheet is close to shaping mould, becomes goods through the cooling afterboarding.
In order to make moulding air chamber air pressure inside even, preferably the lateral surface at the binder ring-side wall is provided with annular groove, and annular groove is communicated with the Compressed Gas admission passage; The sidewall of binder ring is provided with a plurality of above-mentioned air inlets, and air inlet is along the circumferential array (preferred air inlet is circumferentially evenly arranged along annular groove) of annular groove, and each air inlet one end is communicated with annular groove, the other end is communicated with the cavity of binder ring.The compressed gas admission passage of compressed air enters annular groove during matched moulds, after the annular groove guiding, enters the moulding air chamber from each air inlet.
The edge of plastic products has enough sheet materials to stretch when making moulding; make its draw ratio smaller; thereby make the sheet thickness at the sheet thickness at plastic products edge and other positions approaching; make the strength ratio at plastic products edge better; preferred patrix also comprises stretching head, stretching bar, stretching bar installing plate and draft cylinder; stretching bar lower end connects stretching head; stretching head is located in the cavity of binder ring; stretching bar upper end connects stretching bar installing plate, and stretching bar installing plate connects the piston rod of draft cylinder.The cylinder body of draft cylinder can be installed on the cope match-plate pattern; Under patrix was fixed on situation on the frame, the cylinder body of draft cylinder also can be installed on the frame.Draft cylinder is used to drive the stretching bar and moves up and down; Under the drive of stretching bar, stretching head can move up and down in the cavity of binder ring.The shape and the article shape of stretching head are similar, and undersized is in goods, and the surface of stretching head is normally smooth.During matched moulds, under the drive of stretching bar, stretching head is motion downwards in the cavity of binder ring, and sheet material is carried out prestretched, makes sheet form and size and goods approaching, and then further moulding.
For stretching head is steadily moved, preferably be provided with the pilot hole of trend up and down on the top of binder ring, the stretching bar is in this pilot hole and with this pilot hole and is slidingly matched.
During moulding, can be fixed on the frame by patrix, counterdie is with respect to the patrix lifting; Also can be fixed on the frame by counterdie, patrix is with respect to the patrix lifting.
The present invention has in the process of plastic products of left-hand thread structure in manufacturing, during the demoulding, plastic products are pressed on down on the cut-off-die by the binder ring, the shaping mould lift drive mechanism drives shaping mould and descends in the cavity of following cut-off-die, the left-hand thread structure and the shaping mould of plastic products are separated, thereby successfully finish knockout course, and avoid plastic products distortion or damage, guarantee product quality.
Description of drawings
Fig. 1 is the structural representation of the preferred embodiment of the present invention;
Fig. 2 is the enlarged drawing of A part among Fig. 1;
Fig. 3 is the B-B cutaway view of counterdie among Fig. 1;
Fig. 4 is the structural representation of the plastic products of hot forming tool making shown in Figure 1.
The specific embodiment
As shown in Figure 1, this hot forming tool comprises patrix 1 and counterdie 2.In the present embodiment, during moulding, patrix 1 is fixed on the frame, and counterdie 2 is with respect to patrix 1 lifting.The lifting of counterdie 2 is controlled by cam mechanism, and the profile of cam mechanism cam designs according to the stroke of counterdie.The design of cam mechanism belongs to well-known to those skilled in the art, is not described in detail at this.
Patrix 1 comprises cope match-plate pattern 11, goes up cut-off-die 12 and binder ring 13.
Last cut-off-die 12 is installed on the cope match-plate pattern 11, and last cut-off-die 12 has a cavity 14, and the inner edge of last cut-off-die 12 lower ends is last shearing knife edge.
The top of binder ring 13 is provided with guide section 16, and cope match-plate pattern 11 is provided with the guide pin bushing 17 of trend up and down, and the top of binder ring 13 is in this guide pin bushing 17 and with this guide pin bushing 17 and is slidingly matched.
The top of binder ring 13 is provided with thread segment 18, and thread segment 18 is in the top of guide section 16, and adjusting nut 19 is installed on the thread segment 18.When patrix 1 separated with counterdie 2, under the gravity effect, cut-off-die 12 was stretched out in the lower end of binder ring 13, by adjusting the installation site of adjusting nut 19 on thread segment 18, the length that can regulate the lower end extension of binder ring 13.
Present embodiment adopts positive pressure thermoforming technology, and binder ring 13 has a cavity 110, and the sidewall of last cut-off-die 12 is provided with Compressed Gas admission passage 111; The lateral surface of binder ring 13 sidewalls is provided with annular groove 112, and annular groove 112 is communicated with Compressed Gas admission passage 111; The sidewall of binder ring 13 is provided with a plurality of air inlets 113, air inlet 113 is along the circumferential array (air inlet 113 is circumferentially evenly arranged along annular groove 112) of annular groove 112, and each air inlet 113 1 end is communicated with annular groove 112, the other end is communicated with the cavity 110 of binder ring 13.
Patrix 1 also comprises stretching head 114, stretching bar 115, stretching bar installing plate 116 and draft cylinder (not drawing among the figure), stretching bar 115 lower ends connect stretching head 114, stretching head 114 is located in the cavity 110 of binder ring 13, stretching bar 115 upper ends connect stretching bar installing plate 116, and stretching bar installing plate 116 connects the piston rod of draft cylinder.The cylinder body of draft cylinder can be installed on the cope match-plate pattern 11 or on the frame.The shape and the article shape of stretching head 114 are similar, and undersized is in goods, its smooth surface.The top of binder ring 13 is provided with the pilot hole 117 of trend up and down, and stretching bar 115 is in this pilot hole 117 and with this pilot hole 117 and is slidingly matched.
With reference to figure 3, counterdie 2 comprises lower bolster 21, following cut-off-die 22, shaping mould 23, shaping mould lift drive mechanism and knock-pin 24.
Following cut-off-die 22 is fixedly mounted on the lower bolster 21, and following cut-off-die 22 has a cavity 25, and shaping mould 23 is located at down in the cavity 25 of cut-off-die 22; The lateral wall of the madial wall of following cut-off-die cavity 25 and shaping mould 23 is complementary, and shaping mould 23 is slidingly matched with following cut-off-die cavity 25, that is to say the lifting reposefully of the bootable shaping mould 23 of the madial wall of following cut-off-die cavity 25.The upper surface of following cut-off-die 22 be complementary with the lower surface of binder ring 13 and the position corresponding.
With reference to figure 2, the section on the top of shaping mould 23 is trapezoidal shape, and its width reduces from top to bottom gradually, and this part structure is used to make the opening outer of the plastic products 3 of moulding to have corresponding left-hand thread structure.As shown in Figure 4, the opening outer of the plastic products 3 of moulding has a cannelure 31, the shape of cannelure 31 and size are corresponding with the top of shaping mould 23, the width at groove middle part is less than the width of bottom land, cannelure 31 constitutes the left-hand thread structure of plastic products 3, therefore, before the demoulding, the link closely top of shaping mould 23, the opening outer of plastic products 3.
The shaping mould lift drive mechanism comprises demoulding cylinder 26, and the cylinder body 261 of demoulding cylinder 26 is installed on the lower bolster 21; Each shaping mould 23 is installed on the shaping mould installing plate 27, and the piston rod 262 of demoulding cylinder 26 is connected with shaping mould installing plate 27.
The bottom of shaping mould 23 is provided with movable bed die 28, movable bed die 28 is separate with shaping mould 23, movable bed die 28 is connected with the upper end of knock-pin 24, the lower end of knock-pin 24 extend out to lower bolster 21 belows and connects knock-pin installing plate 29, and knock-pin installing plate 29 is connected with the knock-pin lift drive mechanism.Knock-pin lift drive mechanism (can adopt cylinder) belongs to this area technology commonly used at present, is not described in detail at this, does not also draw among Fig. 1.
Also be provided with recirculated cooling water road in the mould in the counterdie 2, the recirculated cooling water route is located at the cooling-water duct 210 in the knock-pin 24 in the mould, the cooling-water duct of being located in the movable bed die 28 211 constitutes, cooling-water duct 210 is communicated with cooling-water duct 211, can cool off movable bed die 28, make the formed sheet fast cooling shaping.
The outer rim of following cut-off-die 22 upper ends is the down cut blade, and down cut blade and last shearing knife edge are complementary.
Brief description is the operation principle of this hot forming tool once:
When making plastic products 3, at first, make plastic sheet reach forming temperature to the plastic sheet heating; Plastic sheet process forming area through heating, counterdie 2 risings this moment, the hot forming tool matched moulds, feed Compressed Gas in the pressure air chamber 118, Compressed Gas applies downward thrust to binder ring 13, binder ring 13 is pressed on down sheet material on the upper surface of cut-off-die 22, and the opening of cavity 110 lower ends of binder ring 13 is sealed by plastic sheet and forms the moulding air chamber; The stretching of draft cylinder drive subsequently bar installing plate 116, stretching bar 115 and stretching head 114 down move, and plastic sheet tentatively is drawn into and stretching head 114 similar shapes; The compressed gas admission passage 111 of compressed air, annular groove 112, air inlet 113 enter in the above-mentioned moulding air chamber then, and under compressed-air actuated effect, plastic sheet is close to shaping mould 23; The recirculated cooling water road feeds cooling water in the mould subsequently, movable bed die 28 is cooled off, with the formed sheet setting, draft cylinder drive stretching this moment bar installing plate 116, stretching bar 115 and stretching head 114 up move, and stretching head 114 is returned back in the cavity 110 of binder ring 13; Then counterdie 2 further rises again, the down cut blade of following cut-off-die 22 upper end outer rims cooperates with the last shearing knife edge of last cut-off-die 12 lower end inner edges, formed sheet after the setting is sheared, plastic products 3 are sheared from formed sheet, obtain single plastic products 3; The piston rod 262 of demoulding cylinder 26 shrinks subsequently, drive shaping mould 23 in the cavity 25 of cut-off-die 22 down, descend (this moment plastic products 3 the edge be pressed on by binder ring 13 under on the cut-off-die 22), the left-hand thread structure of plastic products 3 and shaping mould 23 are separated; Counterdie 2 descends then, and the edge of plastic products 3 leaves binder ring 13; Knock-pin 24 rises subsequently, and movable bed die 28 is along with rising and plastic products 3 being ejected; Then to plastic products 3 blowing,, thereby finish the one-step hot moulding process with plastic products 3 hot forming tool that blows off.Then knock-pin 24 descends, and movable bed die 28 is along with dropping to the moulding desired position; The piston rod 262 of demoulding cylinder 26 stretches out, and drives shaping mould 23 and rises in the cavity 25 of following cut-off-die 22, makes shaping mould 23 return back to the moulding desired position, prepares thermoforming process next time.
Claims (10)
1. a hot forming tool comprises upper die and lower die; Patrix comprises cope match-plate pattern, goes up cut-off-die and binder ring, and last cut-off-die is installed on the cope match-plate pattern, and last cut-off-die has a cavity, and binder is located in the cavity of cut-off-die; Counterdie comprises lower bolster, following cut-off-die and shaping mould, following cut-off-die is fixedly mounted on the lower bolster, following cut-off-die has a cavity, shaping mould is located at down in the cavity of cut-off-die, it is characterized in that: described counterdie also comprises the shaping mould lift drive mechanism that can drive shaping mould lifting in the cavity of following cut-off-die, and the shaping mould lift drive mechanism is connected with shaping mould; The upper surface of following cut-off-die be complementary with the lower surface of binder ring and the position corresponding.
2. hot forming tool according to claim 1 is characterized in that: described shaping mould lift drive mechanism comprises demoulding cylinder, and the cylinder body of demoulding cylinder is installed on the lower bolster, and the piston rod of demoulding cylinder is connected with shaping mould.
3. hot forming tool according to claim 1 and 2 is characterized in that: the described madial wall of cut-off-die cavity down and the lateral wall of shaping mould are complementary, and shaping mould is slidingly matched with following cut-off-die cavity.
4. hot forming tool according to claim 1 and 2; it is characterized in that: described counterdie also comprises knock-pin, knock-pin installing plate and knock-pin lift drive mechanism; the bottom of shaping mould is provided with movable bed die; movable bed die and shaping mould are separate; movable bed die is connected with the upper end of knock-pin; the lower end of knock-pin extend out to the lower bolster below and connects the knock-pin installing plate, and the knock-pin installing plate is connected with the knock-pin lift drive mechanism.
5. hot forming tool according to claim 1 and 2 is characterized in that: the described inner edge of going up the cut-off-die lower end is last shearing knife edge, and the outer rim of following cut-off-die upper end is the down cut blade, and down cut blade and last shearing knife edge are complementary.
6. hot forming tool according to claim 1 and 2 is characterized in that: the top of described binder ring is provided with guide section, and cope match-plate pattern is provided with the guide pin bushing of trend up and down, and the top of binder ring is in this guide pin bushing and with this guide pin bushing and is slidingly matched.
7. hot forming tool according to claim 6 is characterized in that: the top of described binder ring is provided with thread segment, and thread segment is in the top of guide section, and adjusting nut is installed on the thread segment.
8. hot forming tool according to claim 1 and 2, it is characterized in that: described binder ring has a cavity, the sidewall of last cut-off-die is provided with the Compressed Gas admission passage, and the sidewall of binder ring is provided with at least one air inlet, and air inlet is communicated with the cavity of Compressed Gas admission passage with the binder ring.
9. hot forming tool according to claim 8 is characterized in that: the lateral surface of described binder ring-side wall is provided with annular groove, and annular groove is communicated with the Compressed Gas admission passage; The sidewall of binder ring is provided with a plurality of described air inlets, and air inlet is along the circumferential array of annular groove, and each air inlet one end is communicated with annular groove, the other end is communicated with the cavity of binder ring.
10. hot forming tool according to claim 1 and 2, it is characterized in that: described patrix also comprises stretching head, stretching bar, stretching bar installing plate and draft cylinder, stretching bar lower end connects stretching head, stretching head is located in the cavity of binder ring, stretching bar upper end connects stretching bar installing plate, and stretching bar installing plate connects the piston rod of draft cylinder; The top of binder ring is provided with the pilot hole of trend up and down, and the stretching bar is in this pilot hole and with this pilot hole and is slidingly matched.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810219734 CN101428471B (en) | 2008-12-08 | 2008-12-08 | Thermal forming mould |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810219734 CN101428471B (en) | 2008-12-08 | 2008-12-08 | Thermal forming mould |
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| Publication Number | Publication Date |
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| CN101428471A CN101428471A (en) | 2009-05-13 |
| CN101428471B true CN101428471B (en) | 2010-12-15 |
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| CN 200810219734 Active CN101428471B (en) | 2008-12-08 | 2008-12-08 | Thermal forming mould |
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2008
- 2008-12-08 CN CN 200810219734 patent/CN101428471B/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105538673A (en) * | 2016-02-23 | 2016-05-04 | 朱隆娅 | Die system for efficiently producing inner diameter and outer diameter fixed plastic workpiece |
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| CN101428471A (en) | 2009-05-13 |
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Address after: Lu Shengping Industrial Zone Jinping District 515041 Guangdong city of Shantou province No. 28 Patentee after: Guangdong Dacheng Technology Co., LTD Address before: Lu Shengping Industrial Zone Jinping District 515041 Guangdong city of Shantou province No. 28 Patentee before: Guangdong Designer Machinery Co., Ltd. |
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Address after: 7 / F, management committee building, Jinping private science and Technology Park, middle section of Da Xue Road, Shantou City, Guangdong Province Patentee after: Guangdong Dacheng Technology Co.,Ltd. Address before: Lu Shengping Industrial Zone Jinping District 515041 Guangdong city of Shantou province No. 28 Patentee before: GUANGDONG DESIGNER TECHNOLOGY Co.,Ltd. |