Injection mold for ball handle

Abstract

The utility model belongs to the technical field of injection molding equipment, and particularly provides a ball handle injection mold which comprises an upper mold, a lower mold and a mold base, the upper mold is matched with the lower mold, and the mold base is arranged on the lower portion of the lower mold. The upper die comprises an upper die frame and an upper die core, and the upper die core is embedded in the upper die frame; the lower mold comprises a lower mold frame and a lower mold core, the lower mold core is embedded in the lower mold frame, and the upper mold core and the lower mold core are combined to form an injection molding cavity; a sliding block and a group of positioning blocks are arranged on the lower mold frame, a group of mounting blocks are arranged on the sliding block, clamping grooves are formed in the positioning blocks, ball heads are arranged on the two sides of the clamping grooves, springs are arranged in the positioning blocks, the springs are connected with the ball heads, long rod inserts are arranged between the mounting blocks and the positioning blocks, and the long rod inserts transversely penetrate through an injection molding cavity. The injection molding machine is simple in structure, reasonable in design, high in automation degree, high in injection molding efficiency, good in molding effect and high in product quality, and the long-handle insert is easy to mount and separate.

Description

TECHNICAL FIELD

[0001] The utility model belongs to injection molding equipment technical field, especially relates to a kind of ball handle handle injection mold. BACKGROUND

[0002] Ball handle is widely used in medical instrument field. Ball handle generally includes the round ball head of hand holding and longer handle, and the material of ball head is generally plastic, while handle is generally made of stainless steel or other metal material. When injection molding, handle is embedded in cavity, and then injection molding is formed into finished product of plastic wrapping metal. However, the injection molding mode of the present still has the following problems: since the length of handle is longer and needs to be kept concentric with ball head after injection molding, positioning and installation of handle before injection molding need to spend a lot of time, which affects production efficiency; at the same time, during the molding of plastic, handle can be slightly deviated due to external factors or material scouring, which affects product quality.

[0003] Therefore, the above problems become technical problems to be solved. INVENTION CONTENTS

[0004] The utility model discloses a kind of ball handle handle injection mold, which is simple in structure, reasonable in design, high in automation, easy to install and separate long handle insert, high in injection molding efficiency, good in forming effect, and high in product quality.

[0005] Technical scheme: in order to achieve the above object, the utility model provides a kind of ball handle handle injection mold, including upper die, lower die and die holder, the upper die and lower die cooperate, the die holder is located in the lower part of lower die;

[0006] The upper die includes upper die frame and upper die core, and the upper die core is embedded in the upper die frame;

[0007] The lower die includes lower die frame and lower die core, and the lower die core is embedded in the lower die frame, and the upper die core and the lower die core are combined to form an injection molding cavity;

[0008] A set of positioning blocks and a slider are provided on the lower die frame, a set of mounting blocks are provided on the slider, a clamping groove is provided on the positioning block, a ball head is provided on the two sides of the clamping groove, a spring is provided in the positioning block, the spring is connected with the ball head, a long rod insert is provided between the mounting block and the positioning block, and the long rod insert crosses the injection molding cavity.

[0009] One end of the long rod insert is inserted into the mounting block, and the other end is clamped into the clamping groove of the positioning block, so that the long rod insert is positioned by two points, and the long rod insert can be quickly and efficiently installed in place.

[0010] Further, the upper die frame and the lower die frame are provided with a recess for accommodating the long rod insert, one end of the long rod insert is inserted into the mounting block, and the other end is clamped into the clamping groove of the positioning block. After the upper die and the lower die are closed, the long rod insert is accommodated in the recess to further limit the position.

[0011] Further, the upper die further comprises a top plate and a runner plate, the runner plate is arranged on the upper die frame, and the top plate is arranged on the runner plate. The top plate is provided with a runner port, and the runner plate is embedded with a shunt pipe. The main pipe of the shunt pipe is in communication with the runner port, and the branch pipe is in communication with the injection molding cavity. The material enters the injection molding cavity after being shunted by the shunt pipe through the runner port, and a plurality of products can be injection molded at one time.

[0012] Further, the top plate is further provided with a positioning ring, and the positioning ring is coaxially arranged with the runner port. The positioning ring can realize quick and accurate connection of the material supply device and the top plate.

[0013] Further, the upper die is provided with a first guide column, the lower die is provided with a first guide hole, the first guide column cooperates with the first guide hole, the lower die frame is provided with a first positioning column, and the upper die frame is provided with a first positioning hole. The first positioning column cooperates with the first positioning hole.

[0014] Further, the die seat comprises a base and an ejection assembly, the base is provided with a group of die feet, and the ejection assembly is arranged on the base and located between the die feet.

[0015] Further, the ejection assembly comprises a bottom plate and a mounting plate, the bottom plate is arranged on the base, and the mounting plate is arranged on the bottom plate. The mounting plate is provided with a group of ejector pins and a group of support columns. The ejector pins pass through the lower die frame and the lower die core and are in communication with the injection molding cavity and the recess for accommodating the long rod insert. The top surface of the support column can be in contact with the bottom surface of the lower die frame for limiting. The mounting plate drives the ejector pins to eject the injection molded parts and the long rod insert from the mold to complete demolding. When the mounting plate rises to the limit position, the support column is in contact with the bottom surface of the lower die frame for limiting the continuous rising.

[0016] Further, the mounting plate is further provided with a second guide column, a damping spring is sleeved on the second guide column, the lower die frame is provided with a second guide hole, the second guide column cooperates with the second guide hole, the die feet are provided with a second positioning column, and the lower die frame is provided with a second positioning hole. The second positioning column cooperates with the second positioning hole. The second guide column guides the up-and-down movement of the mounting plate, and the damping spring can automatically return the mounting plate to the initial position.

[0017] Further, the base is provided with an ejection hole, and the ejection hole is connected with an external power device to provide power for the upward movement of the mounting plate and the bottom plate.

[0018] Further, the upper die holder and the lower die holder are internally provided with cooling pipes, water inlets and outlets of the cooling pipes are arranged on the side surfaces of the upper die holder and the lower die holder, and exhaust holes are further arranged on the side surfaces of the upper die holder and the lower die holder. The cooling pipes can accelerate the cooling of the material in the injection molding cavity, improve the injection efficiency, and the exhaust holes can exhaust air to avoid the formation of bubbles in the product.

[0019] The technical scheme can achieve the beneficial effects that the ball handle injection mold has the following beneficial effects:

[0020] The ball handle injection mold has the advantages of simple structure, reasonable design, and the like. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 The ball handle injection mold has the advantages of simple structure, reasonable design, and the like.

[0022] Figure 2 The ball handle injection mold has the advantages of simple structure, reasonable design, and the like.

[0023] Figure 3 The ball handle injection mold has the advantages of simple structure, reasonable design, and the like.

[0024] Figure 4 The ball handle injection mold has the advantages of simple structure, reasonable design, and the like.

[0025] Figure 5 The ball handle injection mold has the advantages of simple structure, reasonable design, and the like.

[0026] Figure 6 The ball handle injection mold has the advantages of simple structure, reasonable design, and the like.

[0027] Figure 7 The ball handle injection mold has the advantages of simple structure, reasonable design, and the like.

[0028] Figure 8 The ball handle injection mold has the advantages of simple structure, reasonable design, and the like.

[0029] Figure 9 The ball handle injection mold has the advantages of simple structure, reasonable design, and the like.

[0030] In the figure: 1 - upper die, 11 - upper die holder, 111 - first positioning hole, 12 - upper die core, 13 - top plate, 131 - flow channel opening, 132 - positioning ring, 14 - flow channel plate, 141 - flow divider, 15 - first guide column, 2 - lower die, 21 - lower die holder, 211 - first positioning column, 212 - second guide hole, 213 - second positioning hole, 22 - lower die core, 23 - slider, 231 - mounting block, 24 - positioning block, 241 - ball head, 25 - long rod insert, 26 - first guide hole, 3 - die holder, 31 - base, 311 - ejection hole, 32 - ejection assembly, 321 - bottom plate, 322 - mounting plate, 323 - ejector pin, 324 - support, 325 - second guide column, 326 - damping spring, 33 - die foot, 331 - second positioning column, 4 - exhaust hole, 5 - cooling pipe. DETAILED DESCRIPTION

[0031] It should be understood that the specific embodiments described herein are merely exemplary and not intended to limit the present application.

[0032] As shown in Figure 1 and Figure 2 , a spherical handle injection mold, comprising an upper die 1, a lower die 2 and a die holder 3, the upper die 1 and the lower die 2 cooperate, the die holder 3 is arranged at the lower part of the lower die 2.

[0033] The upper die 1 comprises an upper die holder 11 and an upper die core 12, the upper die core 12 is embedded in the upper die holder 11.

[0034] The lower die 2 comprises a lower die holder 21 and a lower die core 22, the lower die core 22 is embedded in the lower die holder 21, the upper die core 12 and the lower die core 22 are combined to form an injection cavity; in this embodiment, the injection cavity is two, the number is not limited and can be increased or decreased according to actual conditions.

[0035] As shown in Figure 2 and Figure 3 , a set of positioning blocks 24 is arranged on the lower die holder 21 and a slider 23, a set of mounting blocks 231 is arranged on the slider 23, a clamping groove is arranged on the positioning block 24, ball heads 241 are arranged on both sides of the clamping groove, a spring is arranged in the positioning block 24, the spring is connected with the ball head 241, a long rod insert 25 is arranged between the mounting block 231 and the positioning block 24, and the long rod insert 25 crosses the injection cavity. The two ends of the long rod insert 25 are connected with the mounting block 231 and the positioning block 24 respectively, the ball head 241 is arranged on the positioning block 24, the ball head retracts when the long rod insert 25 is pressed into the clamping groove, and the ball head 241 pops out to firmly clamp the long rod insert 25 under the action of the spring after the long rod insert 25 completely enters the clamping groove. When demolding, the slider 23 only needs to be moved away, and the mounting block 231 is separated from the long rod insert 25.

[0036] Please refer toFigure 5 and Figure 6 The upper die frame 11 and the lower die frame 21 are provided with a recess for accommodating the long rod insert 25, one end of the long rod insert 25 is inserted into the mounting block 231, and the other end is clamped into the clamping groove of the positioning block 24.

[0037] As shown in Figure 2 , the upper die 1 further comprises a top plate 13 and a runner plate 14, the runner plate 14 is arranged on the upper die frame 11, and the top plate 13 is arranged on the runner plate 14, and the top plate 13 is provided with a runner port 131, as shown in Figure 4 , wherein the runner plate 14 is embedded with a shunt pipe 141, the main pipe of the shunt pipe 141 communicates with the runner port 131, and the branch pipe communicates with the injection cavity.

[0038] As shown in Figure 8 , the top plate 13 is further provided with a positioning ring 132, and the positioning ring 132 is coaxially arranged with the runner port 131.

[0039] As shown in Figure 2 , Figures 5-7 , the upper die 1 is provided with a first guide column 15, the lower die 2 is provided with a first guide hole 26, the first guide column 15 cooperates with the first guide hole 26, the lower die frame 21 is provided with a first positioning column 211, and the upper die frame 11 is provided with a first positioning hole 111, and the first positioning column 211 cooperates with the first positioning hole 111.

[0040] Please refer again to Figure 2 , the mold base 3 comprises a base 31 and an ejection assembly 32, the base 31 is provided with a group of mold feet 33, and the ejection assembly 32 is arranged on the base 31 and located between the mold feet 33.

[0041] Among them, the ejection assembly 32 comprises a bottom plate 321 and a mounting plate 322, the bottom plate 321 is arranged on the base 31, and the mounting plate 322 is arranged on the bottom plate 321, and the mounting plate 322 is provided with a group of ejector pins 323 and a group of support columns 324, the ejector pins 323 pass through the lower die frame 21 and the lower die core 22 and communicate with the injection cavity and the recess for accommodating the long rod insert 25, and the top surface of the support column 324 can be in contact with the bottom surface of the lower die frame 21 for limiting. When the ejector pin 323 is ejected, it acts on the plastic part of the product and the long rod insert 25, and when it is up, the ball head 241 on the positioning block 24 retracts after the long rod insert 25 is separated from the clamping groove, and the ball head 241 rebounds.

[0042] As shown in Figure 2 and Figure 7As shown, the mounting plate 322 is further provided with a second guide column 325, the second guide column 325 is sleeved with a damping spring 326, the lower mold frame 21 is provided with a second guide hole 212, the second guide column 325 cooperates with the second guide hole 212, the mold foot 33 is provided with a second positioning column 331, the lower mold frame 21 is provided with a second positioning hole 213, and the second positioning column 331 cooperates with the second positioning hole 213.

[0043] As shown in the drawings, Figure 9 As shown, the base 31 is provided with an ejection hole 311, and the ejection hole 311 is connected with an external power device.

[0044] As shown in the drawings, Figure 2 As shown, the upper mold frame 11 and the lower mold frame 21 are provided with cooling pipes, water inlets and outlets of the cooling pipes are arranged on the side of the upper mold frame 11 and the lower mold frame 21, and the side of the upper mold frame 11 and the lower mold frame 21 is further provided with exhaust holes 4.

[0045] In summary, the round ball handle injection mold provided by the utility model has the advantages of simple structure, simple and convenient use, rapid positioning and installation of metal inserts for injection molding of the round ball handle, high precision of metal inserts and plastic parts after injection molding, high product quality, convenient and efficient demolding, good economic benefits, and the like.

[0046] The above is only the preferred embodiment of the utility model, and it should be pointed out that, for ordinary skilled persons in the technical field, several improvements can be made without departing from the principle of the utility model, and these improvements should also be regarded as the protection range of the utility model.

Claims

1. A ball handle injection mold, characterized in that: It comprises an upper die (1), a lower die (2) and a die base (3), wherein the upper die (1) and the lower die (2) cooperate with each other, and the die base (3) is arranged at the lower part of the lower die (2); The upper mold (1) comprises an upper mold frame (11) and an upper mold core (12), wherein the upper mold core (12) is embedded in the upper mold frame (11); The lower mold (2) comprises a lower mold frame (21) and a lower mold core (22), wherein the lower mold core (22) is embedded in the lower mold frame (21), and the upper mold core (12) and the lower mold core (22) are combined to form an injection molding cavity; The lower mold frame (21) is provided with a slider (23) and a group of positioning blocks (24); the slider (23) is provided with a group of mounting blocks (231); the positioning block (24) is provided with a slot; ball heads (241) are provided on both sides of the slot; a spring is provided in the positioning block (24); the spring is connected to the ball head (241); a long rod insert (25) is provided between the mounting block (231) and the positioning block (24); the long rod insert (25) crosses the injection molding cavity.

2. The ball handle injection mold according to claim 1, characterized in that: The upper mold frame (11) and the lower mold frame (21) are provided with grooves for accommodating the long rod insert (25), wherein one end of the long rod insert (25) is plugged into the mounting block (231) and the other end is clamped into the clamping groove of the positioning block (24).

3. The ball handle injection mold according to claim 1, characterized in that: The upper mold (1) further comprises a top plate (13) and a flow channel plate (14); the flow channel plate (14) is arranged on the upper mold frame (11); the top plate (13) is arranged on the flow channel plate (14); a flow channel opening (131) is provided on the top plate (13); a diverter pipe (141) is embedded in the flow channel plate (14); the main pipe of the diverter pipe (141) is connected to the flow channel opening (131), and the branch pipe is connected to the injection cavity.

4. The ball handle injection mold according to claim 3, characterized in that: A positioning ring (132) is also provided on the top plate (13), and the positioning ring (132) is coaxially arranged with the flow channel opening (131).

5. The ball handle injection mold according to claim 1, characterized in that: The upper die (1) is provided with a first guide column (15), the lower die (2) is provided with a first guide hole (26), the first guide column (15) cooperates with the first guide hole (26), the lower die frame (21) is provided with a first positioning column (211), the upper die frame (11) is provided with a first positioning hole (111), the first positioning column (211) cooperates with the first positioning hole (111).

6. The ball handle injection mold according to claim 2, characterized in that: The mold base (3) comprises a base (31) and an ejection assembly (32); a group of mold feet (33) is provided on the base (31); and the ejection assembly (32) is provided on the base (31) and located between the mold feet (33).

7. The ball handle injection mold according to claim 6, characterized in that: The ejection assembly (32) includes a base plate (321) and a mounting plate (322). The base plate (321) is arranged on the base (31), and the mounting plate (322) is arranged on the base plate (321). A group of ejector pins (323) and a group of support columns (324) are provided on the mounting plate (322). The ejector pins (323) pass through the lower mold frame (21) and the lower mold core (22) and communicate with the injection cavity and the groove for accommodating the long rod insert (25). The top surface of the support column (324) can contact and limit the bottom surface of the lower mold frame (21).

8. The ball handle injection mold according to claim 7, characterized in that: A second guide column (325) is further provided on the mounting plate (322), a damping spring (326) is sleeved on the second guide column (325), a second guide hole (212) is provided on the lower mold frame (21), the second guide column (325) cooperates with the second guide hole (212), a second positioning column (331) is provided on the mold foot (33), a second positioning hole (213) is provided on the lower mold frame (21), and the second positioning column (331) cooperates with the second positioning hole (213).

9. The ball handle injection mold according to claim 8, characterized in that: The base (31) is provided with an ejection hole (311), and the ejection hole (311) is connected to an external power device.

10. The ball handle injection mold according to claim 1, characterized in that: Cooling pipes (5) are provided in the upper mold frame (11) and the lower mold frame (21), and water inlets and outlets of the cooling pipes (5) are provided on the sides of the upper mold frame (11) and the lower mold frame (21). Exhaust holes (4) are also provided on the sides of the upper mold frame (11) and the lower mold frame (21).

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