CN218903414U - Cup body rotary shrinkage die - Google Patents
Cup body rotary shrinkage die Download PDFInfo
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- CN218903414U CN218903414U CN202320204402.8U CN202320204402U CN218903414U CN 218903414 U CN218903414 U CN 218903414U CN 202320204402 U CN202320204402 U CN 202320204402U CN 218903414 U CN218903414 U CN 218903414U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
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- Y02P40/57—Improving the yield, e-g- reduction of reject rates
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Abstract
The utility model discloses a cup body rotary shrinkage die, which can achieve the purposes of simplifying the working procedure and improving the processing efficiency and quality; the die comprises a top of an upper die assembly, a flange of a lower die assembly, a die rod and a pressing block; the flange is fixedly connected to the equipment rotary power device; the center of the top surface of the die rod is provided with a die core extending upwards; the pressing block is fixedly connected to the top of the mold core; the demoulding mechanism has an outer slide block which is at least 3 equal parts and moves inside and outside; the inner slide block is arranged between the outer slide block and the mold core, and the outer side surface of the inner slide block and the inner side surface of the outer slide block are inclined surfaces matched with each other; at least 3 ejector rods which are uniformly arranged in the circumferential direction are vertically movably arranged in the through holes of the pressing block, the ejector rods are longer than the through holes, and the lower ends of the ejector rods are abutted against the top surface of the inner sliding block; the demoulding elastic ring is arranged in the groove at the outer side of the outer sliding block and provides elastic restoring force for inward contraction of the outer sliding block.
Description
Technical Field
The utility model belongs to the field of cup processing molds, and particularly relates to a cup body rotary shrinkage mold.
Background
As shown in fig. 1, some products are provided with concave ribs (ring grooves) on the surface of the water cup so as to make the shape more personalized; in the prior art, the water swelling forming is generally adopted in the industry, and the water swelling forming process also needs to carry out shaping and corner cleaning on the water swelling formed concave rib to obtain the expected concave rib, so that the manufacturing procedures are more, and the production efficiency is low; in addition, there are also the following drawbacks: the water expansion concave rib molding has higher requirement on a water expansion die and poor output; because the concave ribs are inward, the problem that demolding is difficult to achieve after water expansion is caused, the water expansion die is required to be of a double-opening Ha Fumo structure (the water expansion die is complex), namely, a movable half block (sliding block) is required to be arranged on the water expansion die at the position from the concave ribs to the cup mouth, so that after water expansion, a cup body can be taken out, due to the fact that the half block is arranged, the cavity of the water expansion die is poor in integrity (gaps are reserved between parts) due to too many parts, obvious marks are reserved on the surface of the cup body close to the half block after water pressure molding, and the produced cup body is poor in appearance.
Disclosure of Invention
The utility model provides a cup body rotary shrinkage die, which achieves the purposes of simplifying procedures and improving processing efficiency and quality.
In order to achieve the above purpose, the present utility model adopts the following technical scheme.
The cup body rotary shrinkage die comprises an upper die assembly and a lower die assembly, wherein the upper die assembly comprises a top fixedly connected with an equipment lifting mechanism, and the lower die assembly is sequentially provided with a flange, a die rod and a pressing block from bottom to top and is fixedly connected by bolts; the flange is fixedly connected to the equipment rotary power device; the center of the top surface of the die rod is provided with an upwardly extending die core, and the outer side of the top end of the die rod is provided with a concave table; the pressing block is fixedly connected to the top of the mold core, the upper section of the outer side of the pressing block is a round straight section, the lower section of the pressing block is a conical section, the pressing block is respectively matched with the head and the shoulder of the cup body blank, and an accommodating space is formed between the bottom surface of the pressing block and the top surface of the mold rod; the demolding mechanism comprises an outer sliding block which is at least 3 equal parts and is movably arranged in the accommodating space inside and outside; the inner slide block is arranged between the outer slide block and the mold core, and the outer side surface of the inner slide block and the inner side surface of the outer slide block are inclined surfaces matched with each other; at least 3 ejector rods which are uniformly arranged in the circumferential direction are vertically movably arranged in the through holes of the pressing block, the ejector rods are longer than the through holes, and the lower ends of the ejector rods are abutted against the top surface of the inner sliding block; the demoulding elastic ring is arranged in the groove at the outer side of the outer sliding block and provides elastic restoring force for inward contraction of the outer sliding block; in the die assembly state, the top presses down the top rod, the inner slide block is pressed to enable the outer slide block to outwards expand under the action of the inclined plane, the annular groove formed by the outer slide block and the concave table is used for forming the concave rib, and the round straight section of the pressing block is used for rotary compression forming of the head; in the open mold state, the upper end of the ejector rod extends out of the through hole, the outer sliding block is contracted inwards to enable the outer side surface of the outer sliding block not to protrude out of the concave table, and demolding of the cup blank after concave rib molding is facilitated.
By adopting the technical scheme, before the cup body blank is spirally shrunk, the water expansion of the cup body blank can be performed by adopting a conventional die, the manufacturing cost and the material cost of the water expansion die are reduced, the cup body blank after the water expansion can not generate marks, and the spirally shrinking quality is ensured; the rotary shrinkage die adopting the technical scheme can simultaneously process concave rib forming and mouth rotary shrinkage one-step forming, realizes smooth demoulding, reduces working procedures, and has high processing efficiency and stable quality; solves the problems existing in the prior art and solves the problem that the existing cup opening rotary shrinkage die cannot process concave ribs.
Preferably, a blind hole is formed in the center of the top surface of the die rod, and a step is formed in the outer side of the top end of the die rod; the mold core is inserted into the blind hole and protrudes upwards from the mold rod; the step is provided with a fixed block, the top surface of the fixed block is flush with the top surface of the die rod to form a sliding surface, the outer side of the upper section of the fixed block is a concave table, and the outer side of the lower section of the fixed block is flush with the die rod.
By adopting the technical scheme, the part of the die rod in a friction state in the processing process is componentized, and the fixing block and the die core are independently arranged, so that the die rod is convenient to replace after being worn.
Preferably, a gap is arranged between the mold core and the blind hole of the mold rod for placing a demolding spring, and elastic force is provided for the upward movement of the inner slide block.
By adopting the technical scheme, the demoulding spring is arranged, so that the inner slide block can rapidly move upwards during demoulding, and the demoulding efficiency and quality are ensured.
Preferably, the materials of the mold core, the pressing block, the fixed block, the outer sliding block and the inner sliding block are Cr12 mold steel.
By adopting the technical scheme, the Cr12 die steel is used as the material of the parts, so that the service life of the parts can be prolonged.
Preferably, the plug is formed by contracting the lower part of the main body of the plug inwards, and a first step surface is formed between the plug and the main body; when the mold is closed, the plug-in part is inserted into the head of the cup blank for limiting radial shaking of the cup blank, and the first step surface is matched with the conical surface section of the pressing block for limiting the jumping of the cup blank in the up-down direction.
By adopting the technical scheme, the cup blank can be prevented from moving in disorder in the processing process, stable rotation is ensured, and further the processing quality is ensured.
Preferably, the bottom surface of the plug-in connection part is provided with a guide part in a downward protruding way, and the top surface of the pressing block is correspondingly provided with a guide groove.
By adopting the technical scheme, the plug and the pressing block can be ensured to be concentric, and further the rotation stability of the die and the cup blank is ensured.
Preferably, the bottom surface of the pressing block is provided with a first groove, and the pressing block is sleeved on the top of the mold core through the first groove; the bottom surface of briquetting still is equipped with the second recess for increase the stroke space of interior slider.
By adopting the technical scheme, the first groove can ensure that the connection between the mold core and the pressing block is more stable; the second groove ensures that the inner slide has sufficient space to move upwards.
Preferably, the ejector rod is in an inverted T shape, and the T-shaped head is arranged between the inner slide block and the pressing block and used for limiting the ejector rod to be outwards separated from the through hole; the upper surface of the inner slide block is provided with a groove for accommodating the T-shaped head.
By adopting the technical scheme, the ejector rod can not deviate from in the processing process, and the T-shaped head is accommodated by arranging the groove on the inner slide block, so that the influence of the T-shaped head on the space for reducing the upward movement of the inner slide block can be avoided.
Preferably, the material of the elastic demolding ring is cowhells.
By adopting the technical scheme, the TPU cowhells for the demolding elastic ring are made of better wear resistance and elasticity.
Compared with the prior art, the utility model has the beneficial effects that: by adopting the technical scheme, before the cup body blank is spirally shrunk, the water expansion of the cup body blank can be performed by adopting a conventional die, the manufacturing cost and the material cost of the water expansion die are reduced, and the cup body blank after the water expansion can not generate marks, so that the spirally shrinking quality is ensured; the rotary shrinkage die adopting the technical scheme can simultaneously process concave rib forming and mouth rotary shrinkage one-step forming, realizes smooth demoulding, reduces working procedures, and has high processing efficiency and stable quality; solves the problems existing in the prior art and solves the problem that the existing cup opening rotary shrinkage die cannot process concave ribs.
Drawings
Fig. 1 is a schematic diagram of a step of the shrinking process of the shrinking mold.
Fig. 2 is a schematic sectional view of the mold opening state of the rotary shrinkage mold of example 1.
Fig. 3 is a schematic sectional view of the mold clamping state of the rotary shrinkage mold according to example 1.
Fig. 4 is a schematic cross-sectional view of the compact.
Fig. 5 is a schematic sectional view of the mold-opening state of the rotary shrinkage mold of example 2.
Fig. 6 is a schematic sectional view of the mold clamping state of the rotary shrinkage mold according to example 2.
Description of the embodiments
In order to make the technical scheme of the present utility model clearer, the present utility model will be described in detail with reference to fig. 1 to 6. It should be understood that the detailed description and specific examples, while indicating the utility model, are intended for purposes of illustration only and are not intended to limit the scope of the utility model.
Example 1
The utility model relates to a cup body rotary shrinkage die, which is shown in fig. 2-4, and comprises a flange 1 fixed on a device rotary power device and a die rod 2 fixed on the flange 1, wherein the center of the top surface of the die rod 2 is provided with a die core 3 extending upwards, the outer side of the top end of the die rod is provided with a concave table 51, the top of the die core 3 is provided with a pressing block 4, and a top head 7 fixedly connected with a device lifting mechanism is arranged above the pressing block 4; the upper section of the outer side of the pressing block 4 is a circular straight section, the lower section of the pressing block 4 is a conical section which is respectively matched with the head 101 and the shoulder 102 of the cup body blank, the diameter of the circular straight section is smaller than the inner diameter of the head 101 after the head is rotationally contracted, the preset size is smaller than the inner diameter of the head 101, a containing space is reserved between the bottom surface of the pressing block 4 and the top surface of the die rod 2, a first groove 41 is further reserved on the bottom surface of the pressing block 4, the pressing block 4 is sleeved on the top of the die core 3 through the first groove 41, and the pressing block 4 is more firmly connected with the die core 3; the demoulding mechanism 6 comprises an outer sliding block 61, an inner sliding block 62, an ejector rod 63 and a demoulding elastic ring 64; the outer slide block 61 is at least 3 divided equally and is movably arranged in the accommodating space between the bottom surface of the pressing block 4 and the top surface of the die rod 2; the inner slide block 62 is arranged between the outer slide block 61 and the mold core 3, the outer side surface of the inner slide block 62 and the inner side surface of the outer slide block 61 are inclined surfaces matched with each other, under the matching of the inclined surfaces, the outer slide block 61 is contracted inwards to enable the inner slide block 62 to move upwards, and the inner slide block 62 is pressed to move downwards to force the outer slide block 61 to expand outwards; at least 3 push rods 63 which are uniformly arranged along the circumferential direction are vertically movably arranged in the through holes 43 of the pressing block 4, the push rods 63 are longer than the through holes 43, and the lower ends of the push rods 63 are in contact with the top surface of the inner slide block 62; the demolding elastic ring 64 is arranged in the groove at the outer side of the outer sliding block 61 and provides elastic restoring force for the inner shrinkage of the outer sliding block 61, and the material of the demolding elastic ring is cowhells (TPU), so that the cowhells are wear-resistant, high in elasticity and suitable.
As shown in fig. 2, the plug portion 72 is formed by contracting the lower part of the main body 71 of the plug 7, and a first step surface is formed between the plug portion 72 and the main body 72; during die assembly, the plug-in portion 72 is inserted into the head portion 101 of the cup blank to limit radial shaking, and the first step surface and the conical surface of the pressing block 4 cooperate to limit the runout of the cup blank in the up-down direction.
As shown in fig. 2, in order to ensure concentricity between the plug 7 and the press block 4 during mold clamping, a guide portion 73 is provided to protrude downward from the bottom surface of the insertion portion 72, and a guide groove 44 is provided to correspond to the top surface of the press block 4.
As shown in fig. 2, in the mold opening state, the plug 7 is separated from the pressing block 4, the ejector rod 63 is not stressed any more, and at the moment, the outer slide block 61 is contracted inwards and kept under the action of the demolding elastic ring 64, so that the outer side surface of the outer slide block is not protruded out of the concave table 51, and the demolding and the taking out of the cup blank concave rib 104 after the molding are facilitated; the inner slide 62 moves up to drive the ejector rod 63 to move up and the upper end of the ejector rod extends out of the top surface of the pressing block 4.
As shown in fig. 3, in the mold closing state, the top 7 is pressed down, the upper end of the ejector rod 63 extending out of the top surface of the pressing block 4 is forced to move down, so that the inner slide block 62 is pressed to expand the outer slide block 61 outwards under the action of the inclined surface, at this time, the annular groove formed by the outer slide block 61 and the concave table 51 is used for forming the concave rib, and the circular straight section of the pressing block 4 is used for rotationally shrinking and forming the head 101.
As shown in fig. 4, in order to secure a stroke space for the inner slide 62 to move up and down, the bottom surface of the pressing block 4 is further provided with a second groove 42.
In order to ensure that the ejector rod 63 is not easily dropped out during production, the ejector rod 63 is designed in an inverted T shape, and a T-shaped head is interposed between the inner slide 62 and the press block 4 for restricting the ejector rod 63 from being pulled out from the through hole 43. Based on this, the upper surface of the inner slide 62 is provided with a groove for accommodating the T-shaped head, which prevents the T-shaped head from affecting the movable stroke of the inner slide 62.
Example 2
On the basis of embodiment 1, since the mold core 3 and the concave table 51 arranged on the mold rod 2 are in a sliding friction state during the use process of the mold, the mold core is easy to wear and needs to be replaced, and therefore, the mold core and the concave table are required to be arranged as independent parts, so that the replacement is convenient and the cost is saved, as shown in fig. 5-6:
the center of the top surface of the die rod 2 is provided with a blind hole, the outer side of the top end is provided with a step, and the die core 3 is inserted into the blind hole and protrudes upwards from the die rod 2; the step is provided with a fixed block 5, the top surface of the fixed block is flush with the top surface of the die rod 2 to form a sliding surface, the outer side of the upper section of the fixed block is provided with a concave table 51, and the outer side of the lower section of the fixed block is flush with the die rod 2.
Because the mold core 3, the pressing block 4, the fixed block 5, the outer sliding block 61 and the inner sliding block 62 are in a sliding friction state in the use process of the mold, the mold core is easy to wear, and Cr12 mold steel is adopted as the materials of the components in order to prolong the service life of the components.
In order to ensure that the inner slide 62 can move upwards smoothly during demolding, a gap is arranged between the mold core 3 and the blind hole of the mold rod 2 for placing the demolding spring 65, and the demolding spring 65 provides elastic restoring force for the upward movement of the inner slide 62.
The specific steps for using the mold are as follows:
s1: in the mold opening state, sleeving the cup blank on a clamp, wherein the shoulder 102 of the cup blank is limited downwards by the conical surface section of the pressing block 4;
s2: starting the equipment lifting mechanism, wherein the plug 7 moves downwards under the action of the equipment lifting mechanism, the guide part 73 is inserted into the guide groove 44 to be matched with the pressing block 4 so as to ensure that the plug 7 and the pressing block 4 are concentric, the bottom surface of the inserting part 72 presses the ejector rod 63 to move downwards until the bottom surface of the inserting part 72 is in contact with the top surface of the pressing block 4, at the moment, in a die assembly state, the inserting part 72 is inserted into the head 101 of the cup blank, and the cup blank is limited in the radial direction and the circumferential direction so as to prevent shaking or jumping; the ejector rod 63 drives the inner slide block 62 to move downwards so as to enable the outer slide block 61 to move outwards and form a ring groove with the concave table 51 for forming the concave rib 104; the round straight section of the pressing block 4 is used for rotationally shrinking and forming the opening 101;
s3: starting a device rotating mechanism, enabling the die and the cup body blank to rotate under the action of the device rotating mechanism, and enabling the rotary shrinkage cutter wheel 8 to feed the cup body blank to the preset position of the cup body 103 and the head 101 to be rotationally shrunk, so that the concave ribs 104 and the head 101 are rotationally shrunk and formed, and the rotary shrinkage molding sequence of the concave ribs 104 and the head 101 can be changed;
s4: the rotary cutter wheel 8 is retracted, the rotation of the equipment rotating mechanism is stopped, the equipment lifting mechanism is lifted, the top head 7 is moved away from the pressing block 4, the top rod 63 is not stressed any more, the outer slide block 61 is contracted inwards under the action of the demolding elastic ring 64, the inner slide block 62 is moved upwards under the double action of the inner inclined surface of the outer slide block 61 and the elastic force of the demolding spring 65, so that the top rod 63 is moved upwards, the upper end of the inner slide block extends out of the top surface of the pressing block 4, at the moment, the concave rib 104 of the cup blank is not clamped by the outer slide block 61 any more, the cup blank can be taken down, and demolding is completed.
Claims (9)
1. The utility model provides a cup contracts mould soon, includes mould subassembly and lower mould subassembly, goes up mould subassembly including top (7) with equipment elevating system fixed connection, its characterized in that: the lower die assembly is sequentially provided with a flange (1), a die rod (2) and a pressing block (4) from bottom to top and is fixedly connected by bolts;
the flange (1) is fixedly connected to the equipment rotary power device;
the center of the top surface of the die rod (2) is provided with a die core (3) extending upwards, and the outer side of the top end of the die rod is provided with a concave table (51);
the pressing block (4) is fixedly connected to the top of the mold core (3), the upper section of the outer side of the pressing block is a round straight section, the lower section of the pressing block is a conical section, the pressing block is respectively matched with the head (101) and the shoulder (102) of the cup body blank, and an accommodating space is formed between the bottom surface of the pressing block (4) and the top surface of the mold rod (2);
the device also comprises a demoulding mechanism (6) which comprises an outer slide block (61) which is at least 3 equal parts and is movably arranged in the accommodating space inside and outside; the inner slide block (62) is arranged between the outer slide block (61) and the mold core (3), and the outer side surface of the inner slide block (62) and the inner side surface of the outer slide block (61) are inclined surfaces which are matched with each other; at least 3 ejector rods (63) which are uniformly arranged in the circumferential direction are vertically movably arranged in the through holes (43) of the pressing block (4), the ejector rods (63) are longer than the through holes (43), and the lower ends of the ejector rods are in contact with the top surface of the inner sliding block (62); the demolding elastic ring (64) is arranged in the groove at the outer side of the outer sliding block (61) and provides elastic restoring force for inward contraction of the outer sliding block (61);
in the die assembly state, the jacking rod (63) is pressed down by the jacking head (7), the inner slide block (62) is pressed to expand the outer slide block (61) outwards under the action of the inclined plane, the annular groove formed by the outer slide block and the concave table (51) is used for forming the concave rib (104), and the round straight section of the pressing block (4) is used for rotary compression forming of the head part (101); in the open mold state, the upper end of the ejector rod (63) extends out of the through hole (43), the outer sliding block (61) is contracted inwards to enable the outer side surface of the outer sliding block not to protrude out of the concave table (51), and demolding of the cup blank after the concave rib (104) is formed is facilitated.
2. A cup rotary shrinkage die according to claim 1, wherein: a blind hole is arranged in the center of the top surface of the die rod (2), and a step is arranged at the outer side of the top end; the mold core (3) is inserted into the blind hole and protrudes upwards from the mold rod (2); the step is provided with a fixed block (5), the top surface of the fixed block is flush with the top surface of the die rod (2) to form a sliding surface, the outer side of the upper section of the fixed block is provided with a concave table (51), and the outer side of the lower section of the fixed block is flush with the die rod (2).
3. A cup rotary shrinkage die according to claim 2, wherein: a gap is arranged between the mould core (3) and the blind hole of the mould rod (2) for placing a demoulding spring (65) to provide elastic force for the upward movement of the inner slide block (62).
4. A cup rotary shrinkage die according to claim 2, wherein: the mold core (3), the pressing block (4), the fixed block (5), the outer sliding block (61) and the inner sliding block (62) are made of Cr12 mold steel.
5. A cup rotary shrinkage die according to claim 1, wherein: the lower part of the main body (71) of the plug (7) is contracted inwards to form an inserting part (72), and a first step surface is formed between the inserting part (72) and the main body (71); when the mold is closed, the plug-in part (72) is inserted into the head part (101) of the cup blank to limit radial shaking of the cup blank, and the first step surface is matched with the conical surface section of the pressing block (4) to limit the jumping of the cup blank in the up-down direction.
6. The cup rotary shrinkage die according to claim 5, wherein: the bottom surface of the inserting part (72) is provided with a guide part (73) in a downward protruding way, and the top surface of the pressing block (4) is correspondingly provided with a guide groove (44).
7. A cup rotary shrinkage die according to claim 1 or 2, wherein: the bottom surface of the pressing block (4) is provided with a first groove (41), and the pressing block (4) is sleeved at the top of the mold core (3) through the first groove (41); the bottom surface of briquetting (4) still is equipped with second recess (42) for increase the stroke space of interior slider (62).
8. A cup rotary shrinkage die according to claim 1, wherein: the ejector rod (63) is in an inverted T shape, and a T-shaped head is arranged between the inner slide block (62) and the pressing block (4) and used for limiting the ejector rod (63) to be outwards separated from the through hole (43); the upper surface of the inner slide (62) is provided with a groove for accommodating the T-shaped head.
9. A cup rotary shrinkage die according to claim 1, wherein: the demoulding elastic ring (64) is made of cowhells.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320204402.8U CN218903414U (en) | 2023-02-14 | 2023-02-14 | Cup body rotary shrinkage die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320204402.8U CN218903414U (en) | 2023-02-14 | 2023-02-14 | Cup body rotary shrinkage die |
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| Publication Number | Publication Date |
|---|---|
| CN218903414U true CN218903414U (en) | 2023-04-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320204402.8U Active CN218903414U (en) | 2023-02-14 | 2023-02-14 | Cup body rotary shrinkage die |
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| CN (1) | CN218903414U (en) |
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2023
- 2023-02-14 CN CN202320204402.8U patent/CN218903414U/en active Active
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