Injection mold for oblique flow fan blade production

Abstract

The utility model discloses an injection mold for oblique flow fan blade production, which relates to the technical field of oblique flow fan blade production and comprises a base, a mounting groove is arranged at the upper end of the base, a lower mold body is movably connected in the mounting groove, mold grooves are symmetrically arranged at the upper end of the lower mold body, and demolding components are arranged at the bottom ends in the mold grooves. Fixing grooves are formed in the two ends of the lower mold body, fixing assemblies are symmetrically installed at the two ends in the fixing grooves, fixing blocks are symmetrically and slidably connected to the two ends of the base, an upper mold body is arranged at the upper end of the lower mold body, and injection molding holes are symmetrically formed in the bottom end of the upper mold body. With the adoption of the structure, the oblique flow fan blade can be ensured to be smoothly separated from the mold after being cured, so that the surface quality and the structural integrity of the fan blade are effectively guaranteed, the problem of damage or deformation caused by improper demolding is reduced, and the service life of the oblique flow fan blade is prolonged. And the oblique flow fan blades of different specifications, shapes and sizes can be subjected to injection molding production according to production requirements, and the production flexibility of the oblique flow fan blades is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of the production of the mixed flow fan blade, and particularly relates to an injection mold for the production of a mixed flow fan blade. BACKGROUND

[0002] The mixed flow fan blade is a key component of the mixed flow fan, and the design and performance of the mixed flow fan blade directly affect the overall efficiency and effect of the mixed flow fan. The working principle of the mixed flow fan is that when the motor drives the impeller, the mixed flow blade generates a mixed flow, which makes the air flow from one side of the impeller to the other side, thereby generating a pushing force to make the fan generate greater air volume. In the mixed flow fan, the flow direction of the gas in the impeller is at an angle to the axis, and therefore, the flow of the gas has strong three-dimensional characteristics. The injection mold for the production of the mixed flow fan blade is a key tool for manufacturing the mixed flow fan blade, and the design and manufacturing quality of the injection mold directly affect the performance and quality of the mixed flow fan blade.

[0003] The injection mold for the production of the centrifugal fan blade disclosed in the publication No. CN214605764U includes a main mold body, and a base is fixedly connected to the outer surface of the lower end of the main mold body. The injection mold for the production of the centrifugal fan blade has a heat preservation mechanism and a heat dissipation mechanism, can adjust the height of the outer cover through the lifting knob during use, can adjust the use height of the outer wall of the mold of different models, can ensure normal work through the electric heating pipe connected through the power column, can heat and preserve the different heights in the mold, can ensure the flow property of the internal injection, can drive the fan to run through the driving motor under the condition that the temperature is relatively high, can make the heat dissipation fins better guide the heat of the mold during injection, can be more beneficial to the molding of the internal product, and can make the safety higher during actual use due to the isolation effect of the protective net, thereby bringing better use prospect.

[0004] Although the above-mentioned utility model can make the heat dissipation fins better guide the heat of the mold during injection, can be more beneficial to the molding of the internal product, and can make the safety higher during actual use due to the isolation effect of the protective net, thereby bringing better use prospect, but during the injection process, the mixed flow fan blade is tightly combined with the surface of the mold cavity, is difficult to separate during demolding, causes the product to be deformed, the surface to be damaged or broken, and affects the production quality of the product. UTILITY MODEL CONTENTS

[0005] In view of the problems mentioned in the background art, the utility model aims to provide an injection mold for the production of a mixed flow fan blade to solve the problem that the mixed flow fan blade is tightly combined with the surface of the mold cavity during the injection process, is difficult to separate during demolding, causes the product to be deformed, the surface to be damaged or broken, and affects the production quality of the product.

[0006] The above technical purpose of the utility model is achieved through the following technical scheme:

[0007] The utility model provides an injection mold for the production of a mixed flow fan blade, comprising a base, an installation groove is formed in the upper end of the base, a lower mold body is movably connected inside the installation groove, a mold groove is symmetrically formed in the upper end of the lower mold body, a demolding assembly is installed at the bottom end inside the mold groove, a fixing groove is formed at both ends of the lower mold body, a fixing assembly is symmetrically installed at both ends inside the fixing groove, a fixing block is symmetrically and slidably connected to both ends of the base, an upper mold body is arranged on the upper end of the lower mold body, and an injection hole is symmetrically formed in the bottom end of the upper mold body.

[0008] The demolding assembly comprises a first built-in hole, a first return spring, a moving column, a sealing ejection plate, a magnetic attraction column and a through hole, the first built-in hole is symmetrically formed in the bottom end inside the mold groove, the first return spring is fixedly connected to the bottom end inside the first built-in hole, the other end of the first return spring is fixedly connected to the moving column, the moving column is slidably connected to the inside of the first built-in hole, the sealing ejection plate is fixedly connected to one end of the moving column away from the first return spring, the magnetic attraction column is fixedly connected to the bottom end of the sealing ejection plate, the through hole is formed in the bottom end inside the mold groove, the magnetic attraction column is slidably connected to the inside of the through hole, the installation groove is symmetrically provided with a containing groove at the bottom end, an electromagnet is installed in the containing groove, and the electromagnet is magnetically connected to the magnetic attraction column.

[0009] As a preferred technical solution, installation columns are symmetrically and fixedly connected to the bottom end inside the installation groove near the chamfers, installation holes are symmetrically formed in the bottom end of the lower mold body near the chamfers, and the installation holes are inserted into the installation columns.

[0010] As a preferred technical solution, positioning blocks are symmetrically and fixedly connected to both ends inside the installation groove, positioning grooves are symmetrically formed at both ends of the lower mold body, and the positioning grooves are slidably connected to the positioning blocks.

[0011] As a preferred technical scheme, the fixing assembly comprises a second built-in hole, a second return spring and a locking column, the second built-in hole is symmetrically arranged at two ends inside the fixing groove, the second return spring is fixedly connected to one end inside the second built-in hole, the locking column is fixedly connected to the other end of the second return spring, the locking column is in sliding connection with the second built-in hole, one end of the locking column away from the second return spring is in arc shape, the fixing block is in insertion with the fixing groove, the locking groove is symmetrically arranged at two ends of the fixing block, the locking groove is in clamping connection with the locking column, the sliding groove is symmetrically arranged at two ends of the base, the sliding groove is in communication with the mounting groove, the sliding groove is in sliding connection with the fixing block, the limiting groove is symmetrically arranged at two ends inside the sliding groove, the limiting block is symmetrically fixedly connected to two ends of the fixing block, and the limiting block is in sliding connection with the limiting groove, so that the mold can be replaced according to production requirements, different specifications, shapes and sizes of the inclined flow fan blade can be injection molded, and the flexibility of the inclined flow fan blade production is improved.

[0012] As a preferred technical scheme, the fixing assembly comprises a second built-in hole, a second return spring and a locking column, the second built-in hole is symmetrically arranged at two ends inside the fixing groove, the second return spring is fixedly connected to one end inside the second built-in hole, the locking column is fixedly connected to the other end of the second return spring, the locking column is in sliding connection with the second built-in hole, one end of the locking column away from the second return spring is in arc shape, the fixing block is in insertion with the fixing groove, the locking groove is symmetrically arranged at two ends of the fixing block, the locking groove is in clamping connection with the locking column, the sliding groove is symmetrically arranged at two ends of the base, the sliding groove is in communication with the mounting groove, the sliding groove is in sliding connection with the fixing block, the limiting groove is symmetrically arranged at two ends inside the sliding groove, the limiting block is symmetrically fixedly connected to two ends of the fixing block, and the limiting block is in sliding connection with the limiting groove, so that the mold can be replaced according to production requirements, different specifications, shapes and sizes of the inclined flow fan blade can be injection molded, and the flexibility of the inclined flow fan blade production is improved.

[0013] In summary, the utility model mainly has the following beneficial effects:

[0014] Firstly, in the utility model, the lower mold body is placed into the mounting groove of the base and fixed, the electromagnet is started, the electromagnet is magnetically connected with the magnetic attraction column, the magnetic attraction column drives the sealing ejection plate and the moving column to descend, the moving column presses the first return spring, the first return spring is compressed, the material is injection molded into the mold groove of the lower mold body, after the injection molding is completed, the electromagnet is turned off, the magnetic attraction between the electromagnet and the magnetic attraction column is ended, the first return spring is reset, the moving column rebounds to drive the sealing ejection plate to pop out, the material is ejected, the inclined flow fan blade can be separated from the mold smoothly after solidification, the surface quality and structural integrity of the fan blade are effectively guaranteed, and the breakage or deformation problem caused by improper demolding is reduced.

[0015] Second, in the utility model, the lower mould body is placed inside the installation groove of the base, the positioning block and the positioning groove are slidably connected, then the fixed block is pushed to slide in the sliding groove, the fixed block is inserted into the fixed groove, the extrusion force presses the arc surface of one end of the locking column, the locking column compresses the second return spring, the locking column is retracted into the second built-in hole, then when the locking column moves to the locking groove, the second return spring resets, the locking column pops out, the locking column is clamped and fixed with the locking groove, the mould can be replaced according to production requirements, different specifications, shapes and sizes of the inclined flow fan blade can be injection molded, and the flexibility of the inclined flow fan blade production is improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is the three-dimensional structure schematic diagram of the utility model;

[0017] Figure 2 is the three-dimensional structure schematic diagram of the base of the utility model;

[0018] Figure 3 is the sectional three-dimensional structure schematic diagram of the fixed assembly of the utility model;

[0019] Figure 4 is the three-dimensional structure schematic diagram of the lower mould body of the utility model;

[0020] Figure 5 is the sectional three-dimensional structure schematic diagram of the demoulding assembly of the utility model.

[0021] Reference signs: 1, base; 2, installation groove; 3, lower mould body; 4, positioning block; 5, positioning groove; 6, mould groove; 7, mounting column; 8, mounting hole; 9, containing groove; 10, electromagnet; 11, demoulding assembly; 111, first built-in hole; 112, first return spring; 113, moving column; 114, sealing ejection plate; 115, magnetic attraction column; 116, through hole; 12, fixed groove; 13, fixed assembly; 131, second built-in hole; 132, second return spring; 133, locking column; 14, sliding groove; 15, fixed block; 16, limiting block; 17, limiting groove; 18, locking groove; 20, upper mould body; 21, injection hole; 22, positioning column; 23, positioning hole. DETAILED DESCRIPTION

[0022] EMBODIMENT

[0023] REFERENCE Figures 1 to 5The embodiment discloses a injection mold for producing a mixed flow fan blade, which comprises a base 1, an installation groove 2 is formed in the upper end of the base 1, a lower mold body 3 is movably connected in the installation groove 2, a mold groove 6 is symmetrically formed in the upper end of the lower mold body 3, a demolding assembly 11 is installed in the inner bottom end of the mold groove 6, a fixing groove 12 is formed in the both ends of the lower mold body 3, a fixing assembly 13 is symmetrically installed in the inner both ends of the fixing groove 12, a fixing block 15 is symmetrically and slidably connected to the both ends of the base 1, an upper mold body 20 is arranged on the upper end of the lower mold body 3, and an injection hole 21 is symmetrically formed in the bottom end of the upper mold body 20.

[0024] The demolding assembly 11 comprises a first built-in hole 111, a first return spring 112, a moving column 113, a sealing ejection plate 114, a magnetic attraction column 115 and a through hole 116, the first built-in hole 111 is symmetrically formed in the inner bottom end of the mold groove 6, the first return spring 112 is fixedly connected to the inner bottom end of the first built-in hole 111, the other end of the first return spring 112 is fixedly connected with the moving column 113, the moving column 113 is slidably connected with the first built-in hole 111, the sealing ejection plate 114 is fixedly connected to the end, away from the first return spring 112, of the moving column 113, the magnetic attraction column 115 is fixedly connected to the bottom end of the sealing ejection plate 114, the through hole 116 is formed in the inner bottom end of the mold groove 6, and the magnetic attraction column 115 is slidably connected with the through hole 116, a containing groove 9 is symmetrically formed in the inner bottom end of the installation groove 2, an electromagnet 10 is installed in the containing groove 9, and the electromagnet 10 is magnetically connected with the magnetic attraction column 115, the lower mold body 3 is placed in the installation groove 2 of the base 1 and fixed, the electromagnet 10 is started, the electromagnet 10 is magnetically connected with the magnetic attraction column 115, the magnetic attraction column 115 drives the sealing ejection plate 114 and the moving column 113 to descend, the moving column 113 is pressed to the first return spring 112, the first return spring 112 is compressed, the material is injected into the mold groove 6 of the lower mold body 3, after the injection is completed, the electromagnet 10 is turned off, the magnetic attraction between the electromagnet 10 and the magnetic attraction column 115 is ended, the first return spring 112 is reset, the moving column 113 rebounds to drive the sealing ejection plate 114 to pop out, and the material is ejected.

[0025] Reference Figure 2 And Figure 4 The installation column 7 is symmetrically and fixedly connected to the inner bottom end of the installation groove 2 near the chamfer, the installation hole 8 is symmetrically formed in the bottom end of the lower mold body 3 near the chamfer, and the installation hole 8 is inserted with the installation column 7, the lower mold body 3 is placed in the installation groove 2 of the base 1, and the installation column 7 in the installation groove 2 is inserted with the installation hole 8.

[0026] Reference Figure 2 And Figure 4The positioning block 4 is symmetrically and fixedly connected to both ends inside the installation slot 2, the positioning groove 5 is symmetrically arranged at both ends of the lower mold body 3, and the positioning groove 5 is in sliding connection with the positioning block 4.

[0027] With reference to Figure 3 The fixing assembly 13 comprises a second built-in hole 131, a second reset spring 132 and a locking column 133, the second built-in hole 131 is symmetrically arranged at both ends inside the fixing slot 12, the second reset spring 132 is fixedly connected to one end inside the second built-in hole 131, the locking column 133 is fixedly connected to the other end of the second reset spring 132, the locking column 133 is in sliding connection with the second built-in hole 131, one end of the locking column 133 away from the second reset spring 132 is arc-shaped, the fixing block 15 is in plug connection with the fixing slot 12, the locking slot 18 is symmetrically arranged at both ends of the fixing block 15, the locking slot 18 is in clamping connection with the locking column 133, the sliding slot 14 is arranged at both ends of the base 1, the sliding slot 14 is in communication with the installation slot 2, the sliding slot 14 is in sliding connection with the fixing block 15, the limiting slot 17 is symmetrically arranged at both ends inside the sliding slot 14, the limiting block 16 is symmetrically and fixedly connected to both ends of the fixing block 15, the limiting block 16 is in sliding connection with the limiting slot 17, the lower mold body 3 is placed inside the installation slot 2 of the base 1, the positioning block 4 is in sliding connection with the positioning groove 5, then the fixing block 15 is pushed, the fixing block 15 is in plug connection with the fixing slot 12, the arc-shaped surface at one end of the locking column 133 is pressed, the second reset spring 132 is compressed, the locking column 133 is retracted inside the second built-in hole 131, then the second reset spring 132 is reset when the locking column 133 moves to the locking slot 18, the locking column 133 is popped out, and the locking column 133 is in clamping connection with the locking slot 18.

[0028] With reference to Figure 1 And Figure 4 The positioning hole 23 is symmetrically arranged at both ends of the lower mold body 3, the positioning column 22 is symmetrically and fixedly connected to the bottom end of the upper mold body 20, and the positioning column 22 is in plug connection with the positioning hole 23 when the upper mold body 20 and the lower mold body 3 are combined.

[0029] Principle and advantages: first, the lower mold body 3 is placed in the mounting groove 2 of the base 1, and the positioning block 4 is connected with the positioning groove 5, then the fixed block 15 is pushed, the fixed block 15 is slid in the sliding groove 14, the fixed block 15 is inserted with the fixed groove 12, the extrusion force is pressed on one end of the arc surface of the locking column 133, the locking column 133 is compressed to the second reset spring 132, the locking column 133 is retracted into the second built-in hole 131, then when the locking column 133 moves to the locking groove 18, the second reset spring 132 resets, the locking column 133 pops out, the locking column 133 is clamped and fixed with the locking groove 18, the electromagnet 10 is started, the electromagnet 10 is connected with the magnetic attraction column 115, the magnetic attraction column 115 drives the sealing ejection plate 114 and the moving column 113 to descend, the moving column 113 is pressed to the first reset spring 112, the first reset spring 112 is compressed, the upper mold body 20 and the lower mold body 3 are combined, the positioning column 22 is inserted into the positioning hole 23, and the injection hole 21 is injected, after injection, the electromagnet 10 is closed, the electromagnet 10 and the magnetic attraction column 115 end the magnetic attraction connection, the first reset spring 112 resets, the moving column 113 rebounds and drives the sealing ejection plate 114 to pop out, and the material is ejected;

[0030] The utility model discloses can ensure that the inclined flow fan blade separates from the mould successfully after solidification, make the surface quality and structural integrity of fan blade have been effectively guaranteed, reduced the breakage or deformation problem of improper demoulding.

Claims

1. An injection mold for producing oblique flow fan blades, comprising a base (1), characterized in that: The base (1) has an installation groove (2) at its upper end. The lower mold body (3) is movably connected inside the installation groove (2). The lower mold body (3) has symmetrical mold grooves (6) at its upper end. The mold groove (6) has a demolding component (11) installed at the bottom of its interior. The lower mold body (3) has fixing grooves (12) at both ends. Fixing components (13) are symmetrically installed at both ends inside the fixing grooves (12). Fixing blocks (15) are symmetrically slidably connected to both ends of the base (1). The lower mold body (3) has an upper mold body (20) at its upper end. The upper mold body (20) has symmetrically opened injection holes (21) at its bottom end. The demolding assembly (11) includes a first internal hole (111), a first reset spring (112), a moving column (113), a sealing ejector plate (114), a magnetic column (115), and a through hole (116). The mold groove (6) has a first internal hole (111) symmetrically opened at the bottom. The first reset spring (112) is fixedly connected to the bottom of the first internal hole (111). The other end of the first reset spring (112) is fixedly connected to the moving column (113). The moving column (113) is slidably connected to the inside of the first internal hole (111). The end of the moving column (113) away from the first reset spring (112) is fixedly connected to the sealing ejector plate (114). The bottom end of the sealing ejector plate (114) is fixedly connected to the magnetic column (115). The mold groove (6) has a through hole (116) opened at the bottom. The magnetic column (115) is slidably connected to the inside of the through hole (116).

2. The injection mold for producing a mixed-flow fan blade according to claim 1, characterized in that: The mounting groove (2) has symmetrically opened receiving grooves (9) at the bottom. An electromagnet (10) is installed inside the receiving groove (9). The electromagnet (10) and the magnetic column (115) are magnetically connected.

3. The injection mold for producing a mixed-flow fan blade according to claim 1, characterized in that: The mounting groove (2) has mounting posts (7) symmetrically fixedly connected at the bottom end near the chamfer. The lower mold body (3) has mounting holes (8) symmetrically opened at the bottom end near the chamfer. The mounting holes (8) and the mounting posts (7) are inserted into each other.

4. The injection mold for producing a mixed-flow fan blade according to claim 1, characterized in that: The mounting groove (2) has symmetrical fixed connections at both ends to positioning blocks (4), and the lower mold body (3) has symmetrical positioning grooves (5) at both ends. The positioning grooves (5) and positioning blocks (4) are slidably connected.

5. The injection mold for producing a mixed-flow fan blade according to claim 1, characterized in that: The fixing component (13) includes a second internal hole (131), a second return spring (132), and a locking post (133). The fixing groove (12) has two symmetrically arranged second internal holes (131) inside. One end of the second internal hole (131) is fixedly connected to the second return spring (132), and the other end of the second return spring (132) is fixedly connected to the locking post (133). The locking post (133) is slidably connected to the inside of the second internal hole (131). The end of the locking post (133) away from the second return spring (132) is set to be arc-shaped.

6. The injection mold for producing a mixed-flow fan blade according to claim 1, characterized in that: The fixing block (15) and the fixing groove (12) are plugged in. The fixing block (15) has locking grooves (18) symmetrically opened at both ends. The locking grooves (18) and the locking pins (133) are snapped in.

7. The injection mold for producing a mixed-flow fan blade according to claim 1, characterized in that: The base (1) has sliding grooves (14) at both ends. The sliding grooves (14) are connected to the mounting groove (2). The sliding grooves (14) are slidably connected to the fixing block (15). The sliding grooves (14) have symmetrically opened limit grooves (17) at both ends. The fixing block (15) has symmetrically fixed blocks (16) at both ends. The limit blocks (16) are slidably connected to the limit grooves (17).

8. The injection mold for producing a mixed-flow fan blade according to claim 1, characterized in that: The lower mold body (3) has symmetrically provided positioning holes (23) near the chamfer at the upper end, and the upper mold body (20) has symmetrically fixedly connected positioning posts (22) near the chamfer at the bottom end, and the positioning posts (22) and positioning holes (23) are inserted into each other.

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