CN214872351U - Impeller injection mold - Google Patents

Abstract

The utility model provides an impeller injection mold, include: the injection molding device comprises a fixed template, a movable template, a mold base and an injection molding port arranged at the upper end of the fixed template, wherein the movable template is arranged above the mold base; the fixed die plate is provided with a front die tooth assembly corresponding to the injection port, and the movable die plate is provided with a rear die tooth assembly matched with the front die tooth assembly; during operation, the injection molding and the demoulding separation of the injection molding piece are completed by the front die tooth component and the rear die tooth component in a rotating matching mode, the front die tooth component comprises a front die gear ring arranged in the fixed die plate, the rear die tooth component comprises a rear die gear ring arranged in the movable die plate, and the front die gear ring and the rear die gear ring are matched with each other. The utility model relates to an impeller injection mould can realize the natural drawing of patterns, improves product machining precision, reduces the machining error rate, guarantees the quality of product, and overall structure is simple, and inner structure sets up rationally.

Description

Impeller injection mold

Technical Field

The utility model relates to an injection mold technical field, in particular to impeller injection mold.

Background

At present, the fan blade impeller is applied to various industries, the basic principle is to accelerate air circulation, but the specific functions are different, and the application fields of the fan blade impeller are large cabinets, personal computers, air supply and exhaust ventilators, household fans, motors, hot melting guns, central air conditioning ventilating fans, smoke exhaust ventilators and the like. The air volume of the impeller is a measure standard for the quality of the impeller, the volume of the impeller needs to be increased when the traditional impeller is large in air volume, as shown in fig. 7, a supercharging fan blade is provided, the root of each fan blade is provided with an arc line which is transited to a straight line and then transited to a reverse arc line, the tail of each fan blade is scattered in the normal direction of the conical surface of the wind wheel, the wind pressure is increased during rotation, the distances among the fan blades are different, the wind speed can be effectively increased, and the requirement for small volume and large air volume is met.

At present, the prior art of the impeller mostly adopts a high-speed motor to drive rotation, so that the requirement on the concentricity of a product is high, the weight of the periphery of the center which is a fulcrum needs to be balanced, the shape of each impeller blade needs to be the same, otherwise, the product can vibrate when rotating, and the noise is very large. Therefore, when the mold is designed, the same central axis is required to be machined, the product must be naturally demolded and cannot be demolded forcibly, the fan blade deformation is avoided, the product performance requirement can be met, however, at present, no injection mold for naturally demolding the impeller exists, the demolding is performed forcibly mostly, the shape and the using effect of the impeller are affected, and the product yield is greatly reduced.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The to-be-solved technical problem of the utility model is to provide a can realize the natural drawing of patterns, impeller blade is indeformable, product quality is higher, inner structure sets up reasonable and the higher impeller injection mold of work efficiency.

(II) technical scheme

In order to solve the technical problem, the utility model discloses an impeller injection mold, include: the injection molding device comprises a fixed template, a movable template, a mold base and an injection molding port arranged at the upper end of the fixed template, wherein the movable template is arranged above the mold base; the fixed die plate is provided with a front die tooth assembly corresponding to the injection port, and the movable die plate is provided with a rear die tooth assembly matched with the front die tooth assembly; during operation, the movable mould board drives down and makes preceding die teeth subassembly with back die teeth subassembly normal running fit accomplishes injection moulding and drawing of patterns separation to the injection molding, utilizes the normal running fit to realize the natural drawing of patterns to the injection molding, guarantees that the integrity of injection molding impeller and the shape of blade are more regular, improves product quality, guarantees production efficiency.

Further, the front die tooth assembly comprises a front die gear ring arranged in the fixed die plate, and a first thrust needle roller bearing is arranged between the front die gear ring and the fixed die plate; the rear die tooth assembly comprises a rear die gear ring arranged in the movable die plate, a second thrust needle bearing is arranged between the rear die gear ring and the movable die plate, the front die gear ring is matched with the rear die gear ring, the injection molding precision of a product during injection molding can be guaranteed, the shape error between blades is reduced, and the matching of the front die gear ring and the rear die gear ring is guaranteed.

Further, back die tooth subassembly is including fixed setting back mould retainer plate on the movable mould board, back mould ring gear is rotated through second deep groove ball bearing and is arranged in on the back mould retainer plate, the one end of front mould ring gear is formed with a plurality of and is used for the fashioned first impeller mould of injection molding blade, the one end of back mould ring gear be formed with first impeller mould complex second impeller mould can carry out spacing rotation to front mould ring gear and back mould ring gear, guarantees the normal running fit between front mould ring gear and the back mould ring gear, and the setting of first impeller mould and second impeller mould can conveniently carry out the processing to the injection molding more in addition, and inner structure sets up rationally, and work efficiency is higher.

Further, the front die tooth assembly is in including setting up guide slot ring in the fixed die plate, the mounting groove has been seted up on the guide slot ring, the spacing setting of front die tooth ring is in the mounting groove, the guide slot ring can play the guide effect to front die tooth ring, guarantees the cooperation of front die tooth ring and back die tooth ring, reduces the shape error to injection molding process impeller blade.

Furthermore, the front die tooth assembly comprises a front die punch head arranged at one end of the fixed die plate, the injection molding port is arranged at one end of the front die punch head and communicated with the front die tooth ring, and a plurality of convex columns used for limiting the injection molding piece are formed at one end of the front die punch head; the rear die tooth assembly comprises a rear die punch arranged on the movable die plate, the rear die punch is arranged in the rear die gear ring and is internally provided with a thimble assembly, the punch can ensure the normal injection molding, the natural demolding of injection molding parts can be realized, the shape error of products is reduced, and the processing efficiency and the processing qualified rate of the products are improved.

Further, the upper end of movable mould board is provided with the fly leaf, the upper end of back mould ring gear is arranged in the fly leaf, the fly leaf is arranged in the movable mould board with set up between the fixed die plate and slidable on the movable mould board, the fly leaf with the pushing mechanism of movable mould board bottom is connected and is made the fly leaf is in the movable mould board slides from top to bottom, can conveniently process the drawing of patterns of accomplishing the back to the product and take out, makes the fly leaf upwards the activity drive back mould ring gear slide through pushing mechanism, and the completion is taken out the drawing of patterns of injection molding, and the structure sets up simply.

Further, the front die tooth assembly is in including fixed setting front die retainer plate in the fixed die plate, the guide slot circle is rotated through first deep groove ball bearing and is arranged in the front die retainer plate, the outside of front die retainer plate with be provided with a plurality of ball locating pin between the guide slot circle, first deep groove ball bearing can fix a position the guide slot circle, and the rotation of guide slot circle when guaranteeing the drawing of patterns utilizes the ball locating pin can guarantee the location to the front die retainer plate in addition, improves the precision of moulding plastics, guarantees product machining precision.

Further, be provided with the guide rail assembly in the fly leaf, the guide rail assembly includes: first rack and second rack, first rack with the second rack corresponds fixed the setting and is in on the fly leaf, just first rack with the second rack when moulding plastics with guide slot circle normal running fit, embedded setting can reduce the space and occupy, guarantees the normal running fit to front mould ring gear and back mould ring gear, and inner structure sets up simply.

Further, a first guide tooth is arranged on the outer side of the guide groove ring, and a second guide tooth is arranged on the outer side of the rear die gear ring; the first guide teeth are matched with the first tooth track and the second tooth track to realize the matched die assembly of the front die gear ring and the rear die gear ring; the tooth is led to the second with first rack and the cooperation of second rack is realized the rotation of back mould ring gear utilizes the rack and leads the setting of tooth can be better make things convenient for the rotation of front mould ring gear and back mould ring gear, guarantees machining efficiency, improves the product precision, holistic simple structure, and inner structure sets up rationally.

(III) advantageous effects

The utility model relates to an impeller injection mold lies in for prior art's advantage: can realize the natural drawing of patterns to the injection molding, can guarantee the degree of integrity of course of working blade and the precision of impeller product, guarantee impeller blade's result of use, can hug the machine-shaping precision of pillow to the impeller injection molding through the normal running fit that is provided with front mould tooth subassembly and back mould tooth subassembly, utilize rotatory natural drawing of patterns that forms to reduce the shape damage to the blade when the drawing of patterns, machining efficiency and the qualification rate of product have been improved effectively, in addition, the rotatory compound die and the drawing of patterns of front mould ring gear and back mould ring gear are guaranteed through the front mould retainer plate and the back mould retainer plate that set up, holistic structure sets up rationally, the inner space occupies fewly.

Drawings

Fig. 1 is a perspective view of an impeller injection mold of the present invention;

FIG. 2 is a bottom-up perspective view of an impeller injection mold of the present invention;

fig. 3 is a sectional view of an impeller injection mold of the present invention;

FIG. 4 is a schematic structural view of the impeller injection mold during demolding;

FIG. 5 is a side view of the impeller injection mold during demolding;

fig. 6 is a schematic structural view of a movable mold plate and a rear mold tooth assembly of the impeller injection mold of the present invention;

fig. 7 is a schematic structural view of a fixed mold plate and a front mold tooth assembly of an impeller injection mold according to the present invention;

fig. 8 is a schematic structural view of a movable plate and a thimble assembly of an impeller injection mold according to the present invention;

fig. 9 is a schematic structural view of the impeller injection mold moving plate of the present invention without the moving plate and the thimble assembly;

fig. 10 is a schematic structural view of the impeller injection mold when the front die tooth assembly and the rear die tooth assembly are closed;

fig. 11 is a bottom-up perspective view of the front die tooth assembly and the rear die tooth assembly of the impeller injection mold according to the present invention when the mold is closed;

fig. 12 is a schematic structural view of the impeller injection mold according to the present invention, in which the guide rail assembly is removed when the front tooth assembly and the rear tooth assembly are closed;

fig. 13 is a schematic structural view of a rear tooth assembly of an impeller injection mold according to the present invention;

fig. 14 is a schematic structural view of a front mold tooth assembly of an impeller injection mold according to the present invention;

fig. 15 is a perspective view of the impeller injection mold with the front die tooth assembly facing upward from the bottom;

fig. 16 is a schematic structural view of a movable plate of an impeller injection mold according to the present invention;

wherein: the injection molding machine comprises a fixed mold plate 1, a movable mold plate 2, a mold base 3, an injection molding opening 4, a front mold tooth assembly 5, a front mold gear ring 501, a guide groove ring 502, a front mold fixing ring 503, a front mold punch 504, a rear mold punch 6, a rear mold gear ring 601, a rear mold fixing ring 602, a rear mold punch 603, an injection molding 7, a first thrust needle bearing 801, a second thrust needle bearing 802, a mounting groove 9, a first deep groove ball bearing 1001, a second deep groove ball bearing 1002, a ball positioning pin 11, a thimble assembly 12, a movable plate 13, a guide rail assembly 14, a first rack 1401, a second rack 1402, a first guide tooth 1501, a second guide tooth 1502, a first impeller mold 1601, a second impeller mold 1602, a convex column 17 and a pushing mechanism 18.

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

Referring to fig. 1 to 16, an impeller injection mold includes: the injection molding device comprises a fixed template 1, a movable template 2, a mold base 3 and an injection molding port 4 arranged at the upper end of the fixed template 1, wherein the movable template 2 is arranged above the mold base 3; a front die tooth assembly 5 corresponding to the injection port 4 is arranged on the fixed die plate 1, and a rear die tooth assembly 6 matched with the front die tooth assembly 5 is arranged on the movable die plate 2; during operation makes preceding die tooth subassembly 5 and 6 normal running fit of back die tooth subassembly accomplish injection moulding and drawing of patterns separation to injection molding 7 under movable mould board 2 drives, and is specific: during die assembly, the movable plate 13 is tightly attached to the movable template 2, the movable template 3 drives the rear die tooth assembly 6 to be matched with the front die tooth assembly 5 of the fixed template 1 to realize die assembly casting, during demolding, the movable template 3 is far away from the fixed template 1, the front die tooth assembly 5 is separated from the rear die tooth assembly 6, the movable plate 13 moves towards one side of the fixed template 1 on the movable template 2 and enables the ejector pin assembly 12 to eject the injection molding 7 out to complete demolding, the injection molding opening 4 is communicated with the upper end of the front die tooth assembly 5 to realize raw material casting, natural demolding of the injection molding 7 is realized by utilizing rotary matching, the integrity of an impeller of the injection molding 7 and the shape of blades are guaranteed to be more regular, the product quality is improved, and the production efficiency is guaranteed.

Referring to fig. 3, 7 and 8, the front die tooth assembly 5 includes a front die gear ring 501 disposed in the fixed die plate 1, and a first thrust needle bearing 801 is disposed between the front die gear ring 501 and the fixed die plate 1; the rear die tooth assembly 6 comprises a rear die gear ring 601 arranged in the movable die plate 2, a second thrust needle bearing 802 is arranged between the rear die gear ring 601 and the movable die plate 2, the front die gear ring 501 is matched with the rear die gear ring 601, the injection molding precision of a product during injection molding can be guaranteed, the shape error between blades is reduced, and the matching of the front die gear ring 501 and the rear die gear ring 601 is guaranteed.

Referring to fig. 3, 12 and 13, the rear die tooth assembly 6 includes a rear die fixing ring 602 fixedly arranged on the movable die plate 2, the rear die gear ring 601 is rotatably arranged on the rear die fixing ring 602 through a second deep groove ball bearing 1002, a plurality of first impellers 1601 used for molding the blades of the injection molded part 7 are formed at one end of the front die gear ring 501, a second impeller 1602 matched with the first impellers 1601 is formed at one end of the rear die gear ring 601, the front die gear ring 501 and the rear die gear ring 601 can be rotated in a limiting manner, the rotation matching between the front die gear ring 501 and the rear die gear ring 601 is ensured, in addition, the first impellers 1601 and the second impellers 1602 are arranged to more conveniently process the injection molded part 7, the internal structure is reasonably arranged, and the working efficiency is higher.

Referring to fig. 3, 6, 7, 14 and 15, the front die teeth assembly 5 includes a guide groove ring 502 disposed in the fixed die plate 1, the guide groove ring 502 is provided with an installation groove 9, the front die teeth ring 501 is disposed in the installation groove 9 in a limiting manner, the front die teeth assembly 5 includes a front die punch 504 disposed at one end of the fixed die plate 1, the injection port 4 is disposed at one end of the front die punch 504 and is communicated with the front die teeth ring 501, and one end of the front die punch 504 is further formed with a plurality of convex columns 17 for limiting the injection molding 7; rear die tooth subassembly 6 is including setting up rear die drift 603 on movable mould board 2, rear die drift 603 is arranged in rear die ring gear 601 and is provided with thimble assembly 12 in the rear die drift 603, guide slot circle 502 can play the guide effect to front die ring gear 501, guarantee the cooperation of front die ring gear 501 and rear die ring gear 601, reduce the shape error to injection moulding process impeller blade, the drift that sets up can guarantee the normal clear of moulding plastics in addition, can realize the natural drawing of patterns to injection molding 7, reduce the shape error to the product, the improvement is to the machining efficiency and the processing qualification rate of product.

Referring to fig. 3, a movable plate 13 is arranged at the upper end of the movable mold plate 2, the upper end of the rear mold gear ring 601 is arranged in the movable plate 13, the movable plate 13 is arranged between the movable mold plate 2 and the fixed mold plate 1 and is slidably arranged on the movable mold plate 2, the movable plate 13 is connected with a pushing mechanism 18 at the bottom of the movable mold plate 2 to enable the movable plate 13 to slide up and down on the movable mold plate 2, so that the product can be conveniently demolded and taken out after processing is completed, the movable plate is enabled to move upwards through the pushing mechanism 18 to drive the rear mold gear ring 601 to slide upwards, demolding and taking out of the injection molding piece 7 are completed, and the structure setting is simple.

Referring to fig. 3, 12, 14 and 15, the front die teeth assembly 5 includes a front die fixing ring 503 fixedly disposed in the fixed die plate 1, the guide groove ring 502 is rotatably disposed in the front die fixing ring 503 through a first deep groove ball bearing 1001, a plurality of ball positioning pins 11 are disposed between the outer side of the front die fixing ring 503 and the guide groove ring 502, so as to ensure the rotation of the guide groove ring 502 during demolding, and in addition, the ball positioning pins 11 can ensure the positioning of the front die fixing ring 503, improve the injection molding precision, and ensure the product processing precision.

Referring to fig. 3, 8, 6, 11 and 16, a rail assembly 14 is disposed in the movable plate 13, and the rail assembly 14 includes: the first rack 1401 and the second rack 1402, the first rack 1401 corresponds fixed the setting on the fly leaf 13 with the second rack 1402, and the first rack 1401 and the second rack 1402 rotate with the guide slot circle 502 when moulding plastics and cooperate, and the embedded setting can reduce the space and occupy, guarantees to the rotating fit of front mould ring gear 501 and back mould ring gear 601, and inner structure sets up simply.

Referring to fig. 12, 13 and 15, the outer side of the guide groove ring 502 is provided with a first guide tooth 1501, and the outer side of the rear die ring 601 is provided with a second guide tooth 1502; the first guide tooth 1501 is matched with a first rack 1401 and a second rack 1402 to realize the matched die of the front die gear ring 501 and the rear die gear ring 601; the second is led tooth 1502 and first rack 1401 and second rack 1402 cooperation and is realized the rotation of back mould ring gear 601, utilizes the rack and leads the setting of tooth can be better make things convenient for the rotation of front mould ring gear 501 and back mould ring gear 601, guarantees machining efficiency, improves the product precision, holistic simple structure, and inner structure sets up rationally.

The impeller injection mold of the embodiment can bolster the machining forming precision of an impeller injection molding part through the rotational matching of the front die tooth assembly and the rear die tooth assembly, natural demolding is formed by rotation during demolding, the shape damage to the blade is reduced, the machining efficiency and the product qualification rate are effectively improved, the natural demolding of the injection molding part can be realized, the integrity of the blade and the precision of an impeller product in the machining process can be ensured, and the using effect of the impeller blade is ensured; in addition, the front die fixing ring and the rear die fixing ring are arranged to ensure the rotary die assembly and the die disassembly of the front die gear ring and the rear die gear ring, the whole structure is reasonable, and the occupied internal space is small.

The above is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the technical principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.

Claims (10)

1. An impeller injection mold, comprising: the injection molding device comprises a fixed template (1), a movable template (2), a mold base (3) and an injection molding port (4) arranged at the upper end of the fixed template (1), wherein the movable template (2) is arranged above the mold base (3); a front die tooth assembly (5) corresponding to the injection port (4) is arranged on the fixed die plate (1), and a rear die tooth assembly (6) matched with the front die tooth assembly (5) is arranged on the movable die plate (2); when the injection molding machine works, the front die tooth assembly (5) and the rear die tooth assembly (6) are rotationally matched under the driving of the movable die plate (2) to complete injection molding and demolding separation of an injection molding piece (7).

2. The impeller injection mold according to claim 1, characterized in that the front mold tooth assembly (5) comprises a front mold ring gear (501) arranged in the fixed mold plate (1), and a first thrust needle bearing (801) is arranged between the front mold ring gear (501) and the fixed mold plate (1); the rear die tooth assembly (6) comprises a rear die gear ring (601) arranged in the movable die plate (2), a second thrust needle bearing (802) is arranged between the rear die gear ring (601) and the movable die plate (2), and the front die gear ring (501) is matched with the rear die gear ring (601).

3. The impeller injection mold according to claim 2, wherein the front mold tooth assembly (5) comprises a guide groove ring (502) arranged in the fixed mold plate (1), a mounting groove (9) is formed in the guide groove ring (502), and the front mold gear ring (501) is limited and arranged in the mounting groove (9).

4. The impeller injection mold as claimed in claim 3, wherein the front mold tooth assembly (5) comprises a front mold fixing ring (503) fixedly arranged in the fixed mold plate (1), the guide groove ring (502) is rotatably arranged in the front mold fixing ring (503) through a first deep groove ball bearing (1001), and a plurality of ball positioning pins (11) are arranged between the outer side of the front mold fixing ring (503) and the guide groove ring (502).

5. The impeller injection mold according to claim 2, characterized in that the rear mold tooth assembly (6) comprises a rear mold fixing ring (602) fixedly arranged on the movable mold plate (2), and the rear mold ring gear (601) is rotatably arranged on the rear mold fixing ring (602) through a second deep groove ball bearing (1002).

6. The impeller injection mold as claimed in claim 2, wherein the front mold tooth assembly (5) comprises a front mold punch (504) arranged at one end of the fixed mold plate (1), the injection port (4) is arranged at one end of the front mold punch (504) and communicated with the front mold gear ring (501), and a plurality of convex columns (17) for limiting the injection molding piece (7) are further formed at one end of the front mold punch (504); the rear die tooth assembly (6) comprises a rear die punch (603) arranged on the movable die plate (2), the rear die punch (603) is arranged in the rear die gear ring (601), and a thimble assembly (12) is arranged in the rear die punch (603).

7. The impeller injection mold as claimed in claim 3, wherein a movable plate (13) is provided at an upper end of the movable mold plate (2), an upper end of the rear mold ring gear (601) is disposed in the movable plate (13), the movable plate (13) is disposed between the movable mold plate (2) and the fixed mold plate (1) and slidably disposed on the movable mold plate (2), and the movable plate (13) is connected with a pushing mechanism (18) at a bottom of the movable mold plate (2) to enable the movable plate (13) to slide up and down on the movable mold plate (2).

8. The impeller injection mold as claimed in claim 7, wherein a rail assembly (14) is provided in the movable plate (13), the rail assembly (14) comprising: the first rack rail (1401) and the second rack rail (1402) are correspondingly and fixedly arranged on the movable plate (13), and the first rack rail (1401) and the second rack rail (1402) are matched with the guide groove ring (502) in a rotating mode during injection molding.

9. The impeller injection mold as claimed in claim 8, characterized in that the outside of the guide groove ring (502) is provided with a first guide tooth (1501), and the outside of the rear mold ring gear (601) is provided with a second guide tooth (1502); the first guide tooth (1501) is matched with the first rack (1401) and the second rack (1402) to realize matched die matching of the front die gear ring (501) and the rear die gear ring (601); the second guide tooth (1502) is matched with the first rack (1401) and the second rack (1402) to realize the rotation of the rear die gear ring (601).

10. The impeller injection mold as claimed in claim 2, wherein one end of the front mold ring gear (501) is formed with a plurality of first impeller molds (1601) for molding the blades of the injection molded part (7), and one end of the rear mold ring gear (601) is formed with a second impeller mold (1602) which is engaged with the first impeller mold (1601).

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