CN215825940U - Detachable movable bottom die of thermal forming die - Google Patents
Detachable movable bottom die of thermal forming die Download PDFInfo
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- CN215825940U CN215825940U CN202122395475.3U CN202122395475U CN215825940U CN 215825940 U CN215825940 U CN 215825940U CN 202122395475 U CN202122395475 U CN 202122395475U CN 215825940 U CN215825940 U CN 215825940U
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- bottom die
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Abstract
The utility model relates to a detachable movable bottom die of a thermal forming die, which is characterized in that: comprises a movable bottom die main body and an insert; the insert is detachably arranged on the top surface of the movable bottom die main body through at least one inserting mechanism; the movable bottom die main body is provided with a positioning mechanism capable of fixing the position of the mounted insert. The insert in the detachable movable bottom die can be conveniently and quickly replaced, is used for producing various plastic products with the same specification and different characters or patterns, and can save the replacement time and cost of the movable bottom die.
Description
Technical Field
The utility model relates to thermal forming equipment, in particular to a detachable movable bottom die of a thermal forming die.
Background
The existing thermoforming mould for manufacturing plastic products (such as plastic cups, plastic boxes, plastic covers and the like) can complete the forming and shearing actions. The hot forming die comprises an upper die and a lower die; the upper die generally comprises an upper die plate, an upper die body, an upper shear die and a material pressing ring, wherein the upper die body is arranged on the upper die plate and is positioned below the upper die plate, the upper shear die is arranged on the upper die body and is positioned below the upper die body, the upper shear die is provided with a cavity, the inner edge of the lower end of the upper shear die is an upper shear blade, the material pressing ring can move up and down in the cavity of the upper shear die, and the material pressing ring presses the sheet material onto the lower die when the die is closed; the lower die comprises a lower die plate, a lower die body, a lower shearing die, a forming die and an ejector rod, wherein the lower die body is arranged on the lower die plate and is positioned above the lower die plate, the lower shearing die is arranged on the lower die body and is positioned above the lower die body, the outer edge of the upper end of the lower shearing die is a lower shearing cutting edge generally, the lower shearing cutting edge is matched with the upper shearing cutting edge (the upper shearing cutting edge and the lower shearing cutting edge are both annular cutting edges), the forming die comprises a side die and a movable bottom die, the side die is arranged on the lower die body and is positioned at the inner side of the lower shearing die, the movable bottom die is arranged at the inner side of the side die and is connected with the upper end of the ejector rod, and the lower end of the ejector rod extends out of the lower die plate and is connected with an ejector rod mounting plate.
When the plastic product is manufactured, firstly, the plastic sheet is heated to enable the plastic sheet to reach the molding temperature; the heated plastic sheet passes through a forming area, the thermal forming die is closed, and the plastic sheet is tightly attached to the forming die through positive pressure thermal forming or negative pressure thermal forming; the formed sheet material is sheared by an upper shearing blade and a lower shearing blade, and the plastic product is sheared from the formed sheet material to obtain a single plastic product; then the ejector rod mounting plate, the ejector rod and the movable bottom die are lifted relative to the lower die plate, and the plastic product is ejected from the forming die, so that the plastic product is separated from the forming die; then blowing air to the plastic product to blow the plastic product away from the thermal forming die to complete the one-step forming process.
When plastic containers such as plastic cups, plastic boxes and the like are manufactured, characters or patterns need to be formed at the bottoms of the containers sometimes; in the manufacture of plastic closures, it is sometimes necessary to form text or graphics on top of the plastic closure. In order to save equipment cost, in the design of the thermal forming die, one die is multipurpose by replacing the movable bottom die, namely, one set of thermal forming die is provided with a plurality of different movable bottom dies, and different characters or patterns are engraved on each movable bottom die according to production requirements. When another plastic product with different characters and patterns needs to be produced, the original whole movable bottom die needs to be detached from the ejector rod, and then a new movable bottom die needs to be installed. However, because the movable bottom die is usually provided with a cooling water path, the movable bottom die needs to be aligned and communicated with the cooling water path in the ejector rod, so that the whole disassembly and assembly process is complicated, long time is needed, the cost is high, and the normal production is affected.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem of providing a detachable movable bottom die of a thermal forming die, wherein an insert in the detachable movable bottom die can be conveniently and quickly replaced to produce various plastic products with the same specification and different characters or patterns, and the replacement time and cost of the movable bottom die can be saved. The technical scheme is as follows:
the utility model provides a thermal forming die's activity die block of dismantling which characterized in that: comprises a movable bottom die main body and an insert; the insert is detachably arranged on the top surface of the movable bottom die main body through at least one inserting mechanism; the movable bottom die main body is provided with a positioning mechanism capable of fixing the position of the mounted insert.
The above-mentioned thermoforming mold generally includes an upper mold and a lower mold; the upper die generally comprises an upper die plate, an upper die body, an upper shear die and a material pressing ring, wherein the upper die body is arranged on the upper die plate and is positioned below the upper die plate, the upper shear die is arranged on the upper die body and is positioned below the upper die body, the upper shear die is provided with a cavity, the inner edge of the lower end of the upper shear die is an upper shear blade, the material pressing ring can move up and down in the cavity of the upper shear die, and the material pressing ring presses the sheet material onto the lower die when the die is closed; the lower die comprises a lower die plate, a lower die body, a lower shearing die, a forming die and an ejector rod, the lower die body is arranged on the lower die plate and is positioned above the lower die plate, the lower shearing die is arranged on the lower die body and is positioned above the lower die body, the outer edge of the upper end of the lower shearing die is a lower shearing blade, and the lower shearing blade is matched with the upper shearing blade (the upper shearing blade and the lower shearing blade are both annular blades); the forming die comprises a side die and a movable bottom die, the side die is installed on the lower die body and is located on the inner side of the lower shear die, the movable bottom die is arranged on the inner side of the side die, the movable bottom die is connected with the upper end of the ejector rod, and the lower end of the ejector rod extends out of the lower die plate and is connected with the ejector rod mounting plate. When the movable bottom die is applied to a thermal forming die, the movable bottom die main body is connected with the upper end of the ejector rod, and a cooling water channel is usually arranged in the movable bottom die main body and is aligned and communicated with the cooling water channel in the ejector rod.
In the detachable movable bottom die, a plurality of inserts can be matched with the main body of the movable bottom die, the upper surface of each insert is provided with different characters or patterns, the movable bottom die is modified by replacing the inserts, so that the detachable movable bottom die has multiple functions, and is used for producing multiple plastic products (for example, different characters or patterns are arranged on the plastic cover, and different characters or patterns are arranged at the bottom of the plastic container) with the same specification and different characters or patterns. When another plastic product with different characters or patterns needs to be produced, the positioning mechanism is firstly unfastened, the original insert is detached from the top surface of the movable bottom die main body, then the new insert is installed on the top surface of the movable bottom die main body through the inserting mechanism, and the position of the installed insert is fixed through the positioning mechanism.
In a preferred scheme, the inserting mechanism comprises an inserting groove and an inserting block, the inserting groove is arranged on the top surface of the movable bottom die main body, and the inserting block is arranged on the bottom surface of the insert and is in inserting fit with the inserting groove; the positioning mechanism comprises at least one locking assembly, the number of the locking assemblies is the same as that of the inserting mechanisms, the locking assemblies correspond to the inserting mechanisms one by one, and the locking assemblies can lock the inserting blocks of the corresponding inserting mechanisms in the inserting grooves. When another plastic product with different characters or patterns needs to be produced, the locking assembly is unlocked, and then the original insert block on the insert is pulled out from the inserting groove on the movable bottom die main body, so that the original insert can be detached from the top surface of the movable bottom die main body; then, the inserting block of the new insert is inserted into the inserting groove on the movable bottom die main body, so that the insert is positioned at a preset position on the top surface of the movable bottom die main body, and then the inserting block of the corresponding inserting mechanism is locked in the inserting groove through the locking assembly, so that the position of the insert after being installed is fixed.
In a more preferable scheme, the locking assembly comprises a locking screw, a threaded through hole formed in the movable bottom die main body and a locking screw hole formed in the inserting block, the threaded through hole is communicated with the cavity of the inserting groove, the locking screw hole corresponds to the threaded through hole in position, and the tail end of a screw rod of the locking screw is meshed with the corresponding locking screw hole after penetrating through the threaded through hole from the outer side wall of the movable bottom die main body. When the position of the insert after installation is required to be fixed, after the inserting block is inserted into the inserting groove, the screw rod of the locking screw of the locking assembly penetrates through the threaded through hole from the outer side wall of the movable bottom die main body and then enters the locking screw hole to be locked, and then the inserting block of the inserting mechanism can be locked in the inserting groove through the locking assembly.
In a further more preferable scheme, the insertion groove and the insertion block are both strip-shaped and move forward and backward, and the front end of the insertion groove is provided with a front notch opened on the front side wall of the movable bottom die main body; the screw thread through hole is formed in the rear side wall of the movable bottom die main body and is in the front-back direction, and the locking screw hole is formed in the rear end face of the inserting block. In general, the cross-sectional shape of the plugging block can be isosceles trapezoid, T-shaped or other shapes, and the plugging groove is matched with the cross-sectional shape and size of the plugging block.
In another preferred scheme, the inserting mechanism comprises an inserting block and an inserting groove, the inserting block is arranged on the top surface of the movable bottom die main body, and the inserting groove is arranged on the bottom surface of the insert and is in inserting fit with the inserting block; the positioning mechanism comprises at least one locking assembly, the number of the locking assemblies is the same as that of the inserting mechanisms, the locking assemblies correspond to the inserting mechanisms one by one, and the locking assemblies can lock the inserting blocks of the corresponding inserting mechanisms in the inserting grooves. When another plastic product with different characters or patterns needs to be produced, the original insert can be detached from the top surface of the movable bottom die main body only by unlocking the locking assembly and then drawing out the inserting groove on the insert along the inserting block on the insert of the movable bottom die main body; then, the inserting groove of the new insert is inserted into the inserting block on the movable bottom die main body, so that the insert is positioned at a preset position on the top surface of the movable bottom die main body, and then the inserting block of the corresponding inserting mechanism is locked in the inserting groove through the locking assembly, so that the position of the insert after being installed is fixed.
In a more preferable scheme, the locking assembly comprises a locking screw, a threaded through hole formed in the insert and a locking screw hole formed in the insertion block, the threaded through hole is communicated with the cavity of the insertion groove, the locking screw hole corresponds to the threaded through hole in position, and the tail end of a screw rod of the locking screw penetrates through the threaded through hole from the outer side wall of the insert and is meshed with the corresponding locking screw hole. When the position of the insert after installation is required to be fixed, after the inserting block is inserted into the inserting groove, a screw rod of a locking screw of the locking assembly penetrates through the threaded through hole from the outer side wall of the insert and then enters the locking screw hole to be locked, and then the inserting block of the inserting mechanism can be locked in the inserting groove through the locking assembly.
In a further more preferable scheme, the insertion groove and the insertion block are both strip-shaped and move forwards and backwards, and the front end of the insertion groove is provided with a front notch opened on the front side wall of the insert; the thread through hole is formed in the rear side wall of the insert and is in the front-back direction, and the locking screw hole is formed in the rear end face of the inserting block. In general, the cross-sectional shape of the plugging block can be isosceles trapezoid, T-shaped or other shapes, and the plugging groove is matched with the cross-sectional shape and size of the plugging block.
The detachable movable bottom die can be modified by replacing the insert, so that the replacement is very convenient and fast, one die is multipurpose, the detachable movable bottom die is used for producing various plastic products with the same specification and different characters or patterns (for example, different characters or patterns are arranged on the plastic cover, and different characters or patterns are arranged at the bottom of the plastic container), the whole movable bottom die does not need to be replaced like the prior art, the whole replacement process is very convenient and fast, the replacement time and cost of the movable bottom die can be saved, and the normal production can be ensured.
Drawings
Fig. 1 is a schematic structural view of a detachable movable bottom die according to a preferred embodiment of the present invention.
Fig. 2 is a bottom view of the insert in the removable moving die of fig. 1.
Fig. 3 is a schematic view of the removable moving die shown in fig. 1, in which the insert is separated from the moving die.
Detailed Description
As shown in fig. 1 to 3, the detachable movable bottom die of the thermoforming mold comprises a movable bottom die main body 1 and an insert 2; the insert 2 is detachably arranged on the top surface of the movable bottom die main body 1 through at least one inserting mechanism 3; the movable bottom die main body 1 is provided with a positioning mechanism 4 capable of fixing the position of the insert 2 after installation.
In the present embodiment, the movable die body 1 is provided therein with a cooling water passage 101 that is in aligned communication with a cooling water passage in the ejector rod of the thermoforming mold.
In the present embodiment, the number of the plugging mechanisms 3 is two, and the two plugging mechanisms 3 are arranged side by side from left to right; the inserting mechanism 3 comprises an inserting groove 31 and an inserting block 32, the inserting groove 31 is arranged on the top surface of the movable bottom die main body 1 and is in a front-back direction, the front end of the inserting groove 31 is provided with a front notch 311 opened on the front side wall of the movable bottom die main body 1, the inserting block 32 is arranged on the bottom surface of the insert 2 and is in inserting fit with the inserting groove 31, the shape and the size of the cross section of the inserting groove 31 are matched with those of the inserting block 32, and the shapes of the cross sections of the inserting block 32 and the inserting groove 31 are both T-shaped; the positioning mechanism 4 includes two locking assemblies 41, the two locking assemblies 41 correspond to the two plugging mechanisms 3 one by one, each locking assembly 41 includes a locking screw (not shown in the figure), a threaded through hole 412 formed in the rear side wall of the movable bottom die body 1 and a locking screw hole 413 formed in the rear end face of the plugging block 32, the threaded through hole 412 extends in the front-back direction and is communicated with the cavity of the plugging groove 31, the locking screw hole 413 corresponds to the threaded through hole 412, and the tail end of a screw rod of the locking screw is meshed with the corresponding locking screw hole 413 after passing through the threaded through hole 412 from the outer side wall of the movable bottom die body 1.
The method for mounting the detachable movable bottom die is briefly described as follows:
the detachable movable bottom die is characterized in that the movable bottom die main body 1 is matched with a plurality of inserts 2, the upper surface of each insert 2 is provided with different characters or patterns, the movable bottom die is modified by replacing the inserts 2, and the detachable movable bottom die has multiple functions and is used for producing various plastic products (for example, different characters or patterns are arranged on a plastic cover, and different characters or patterns are arranged at the bottom of a plastic container) with the same specification and different characters or patterns.
When another plastic product with different characters or patterns needs to be produced, the two locking assemblies 41 are firstly unfastened, the screw rods of the two locking screws are screwed out of the corresponding locking screw holes 413, and then the original inserting block 32 on the insert 2 is pulled out of the inserting groove 31 on the movable bottom die main body 1, so that the original insert 2 can be detached from the top surface of the movable bottom die main body 1; then, the insert block 32 of a new insert 2 is inserted into the insert groove 31 of the movable bottom die main body 1 from the front notch 311, so that the insert 2 is located at a predetermined position on the top surface of the movable bottom die main body 1, and then the screws of the locking screws of the two locking assemblies 41 pass through the threaded through holes 412 from the outer side wall of the movable bottom die main body 1 and then enter the locking screw holes 413 to be locked, so that the insert blocks 32 of the two inserting mechanisms 3 can be locked in the insert groove 31 through the two locking assemblies 41, and the position of the installed insert 2 is fixed.
In addition, it should be noted that the names of the parts and the like of the embodiments described in the present specification may be different, and the equivalent or simple change of the structure, the characteristics and the principle described in the present patent idea is included in the protection scope of the present patent. Various modifications, additions and substitutions for the specific embodiments described may be made by those skilled in the art without departing from the scope of the utility model as defined in the accompanying claims.
Claims (8)
1. The utility model provides a thermal forming die's activity die block of dismantling which characterized in that: comprises a movable bottom die main body and an insert; the insert is detachably arranged on the top surface of the movable bottom die main body through at least one inserting mechanism; the movable bottom die main body is provided with a positioning mechanism capable of fixing the position of the mounted insert.
2. The detachable movable bottom die of the thermoforming mold according to claim 1, characterized in that: and a cooling water channel is arranged in the movable bottom die main body.
3. The removable movable counter die of a thermoforming mold according to claim 1 or 2, characterized in that: the inserting mechanism comprises an inserting groove and an inserting block, the inserting groove is arranged on the top surface of the movable bottom die main body, and the inserting block is arranged on the bottom surface of the insert and is in inserting fit with the inserting groove; the positioning mechanism comprises at least one locking assembly, the number of the locking assemblies is the same as that of the inserting mechanisms, the locking assemblies correspond to the inserting mechanisms one by one, and the locking assemblies can lock the inserting blocks of the corresponding inserting mechanisms in the inserting grooves.
4. The detachable movable bottom die of the thermoforming mold according to claim 3, characterized in that: the locking assembly comprises a locking screw, a threaded through hole formed in the movable bottom die main body and a locking screw hole formed in the inserting block, the threaded through hole is communicated with the cavity of the inserting groove, the locking screw hole corresponds to the threaded through hole in position, and the tail end of a screw rod of the locking screw is meshed with the corresponding locking screw hole after penetrating through the threaded through hole from the outer side wall of the movable bottom die main body.
5. The detachable movable bottom die of the thermoforming mold according to claim 4, characterized in that: the inserting groove and the inserting block are strip-shaped and move forwards and backwards, and the front end of the inserting groove is provided with a front notch opened on the front side wall of the movable bottom die main body; the screw thread through hole is formed in the rear side wall of the movable bottom die main body and is in the front-back direction, and the locking screw hole is formed in the rear end face of the inserting block.
6. The removable movable counter die of a thermoforming mold according to claim 1 or 2, characterized in that: the inserting mechanism comprises an inserting block and an inserting groove, the inserting block is arranged on the top surface of the movable bottom die main body, and the inserting groove is arranged on the bottom surface of the insert and is in inserting fit with the inserting block; the positioning mechanism comprises at least one locking assembly, the number of the locking assemblies is the same as that of the inserting mechanisms, the locking assemblies correspond to the inserting mechanisms one by one, and the locking assemblies can lock the inserting blocks of the corresponding inserting mechanisms in the inserting grooves.
7. The detachable movable bottom die of the thermoforming mold according to claim 6, characterized in that: the locking assembly comprises a locking screw, a threaded through hole formed in the insert and a locking screw hole formed in the inserting block, the threaded through hole is communicated with the cavity of the inserting groove, the locking screw hole corresponds to the threaded through hole in position, and the tail end of a screw rod of the locking screw penetrates through the threaded through hole from the outer side wall of the insert and is meshed with the corresponding locking screw hole.
8. The detachable movable bottom die of the thermoforming mold according to claim 7, characterized in that: the insertion groove and the insertion block are both strip-shaped and move forwards and backwards, and the front end of the insertion groove is provided with a front notch opened on the front side wall of the insert; the thread through hole is formed in the rear side wall of the insert and is in the front-back direction, and the locking screw hole is formed in the rear end face of the inserting block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122395475.3U CN215825940U (en) | 2021-09-30 | 2021-09-30 | Detachable movable bottom die of thermal forming die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122395475.3U CN215825940U (en) | 2021-09-30 | 2021-09-30 | Detachable movable bottom die of thermal forming die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215825940U true CN215825940U (en) | 2022-02-15 |
Family
ID=80201858
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122395475.3U Active CN215825940U (en) | 2021-09-30 | 2021-09-30 | Detachable movable bottom die of thermal forming die |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215825940U (en) |
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2021
- 2021-09-30 CN CN202122395475.3U patent/CN215825940U/en active Active
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