Drainage forming device for plastic part injection molding

Abstract

The utility model discloses a drainage forming device for injection molding of plastic parts, which comprises a device seat, an ejector plate, a turntable and a connecting seat, the top of the device seat is connected with a lower mold, the ejector plate is arranged at the bottom of the lower mold, the middle of the device seat is connected with a first movable cavity, the inside of the first movable cavity is connected with a screw rod, and the screw rod is connected with the connecting seat. The screw rod is sleeved with a lifting cylinder, the outer surface of the screw rod is connected with a driven conical tooth, and the bottom of one side of the driven conical tooth is connected with a driving conical tooth in a meshed mode. The driving conical tooth is driven by the rotating disc to rotate so as to drive the driven conical tooth and the screw rod to rotate, then the lifting cylinder and the sliding sleeve synchronously eject upwards through the resilience of the first spring, a mold formed in the lower mold is rapidly ejected out through the ejector plate, workers can take materials conveniently, and the working efficiency is improved. A mold sample in the lower mold does not need to be manually dug out, so that the quality of the plastic part mold is greatly improved, and the overall production efficiency is enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molding devices, in particular to a drainage molding device for injection molding of plastic parts. Background Art

[0002] Injection molding machine, also known as injection molding machine or injection machine, is the main molding equipment that uses plastic molding devices to make plastic products of various shapes from thermoplastics or thermosetting plastics. Existing injection molding devices usually include upper and lower molds. The upper mold is provided with an injection pipe, and the molten plastic is injected into the lower mold through the injection pipe. After the plastic is cooled, the mold can be formed.

[0003] The molding device currently used does not have an auxiliary material removal device. After the plastic inside the lower mold is molded, the plastic needs to be manually removed from the inside of the lower mold, which increases the burden on the staff. At the same time, the staff needs to use force to separate the molded plastic parts from the lower mold. It is inconvenient to use and urgently needs to be developed. Utility Model Content

[0004] The purpose of the utility model is to provide a drainage molding device for plastic part injection molding to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a drainage molding device for injection molding of plastic parts, comprising a device seat, a ejector plate, a turntable and a connecting seat, the top of the device seat is connected to a lower mold, the bottom of the lower mold is provided with an ejector plate, the middle of the device seat is connected to a first movable cavity, the interior of the first movable cavity is connected to a screw, the outer sleeve of the screw is provided with a lifting cylinder, the outer surface of the screw is connected to a driven conical tooth, the bottom of one side of the driven conical tooth is meshed with an active conical tooth, and the driven conical tooth cooperates with the active conical tooth to drive the lifting cylinder up and down;

[0006] A transmission rod is connected to the interior of the active conical tooth, a turntable and a connecting seat are provided on one side of the device seat, one end of the transmission rod passes through one side of the device seat and is connected to the turntable, the connecting seat is located at the bottom of the turntable, and a second movable groove matching the turntable is connected to the top of the connecting seat, a second movable cavity is connected to the interior of the connecting seat, a second limiting groove is connected to the top of the second movable cavity, a second limiting block is provided inside the second movable cavity, a second plug and a third spring are respectively connected to the two sides of the second limiting block, one side of the third spring is connected to the inner side of the second movable cavity, a second control rod is connected to the top of the second limiting block, the second control rod is movably arranged in the second limiting groove, and the second control rod can move in the second limiting groove to adjust the positioning and plugging state of the second plug and the second fixing groove.

[0007] Preferably, an upper mold matching the lower mold is arranged above the lower mold, and connecting blocks are connected to both sides of the top of the upper mold. A telescopic driving mechanism is installed at the bottom of the connecting block. The telescopic driving mechanism is located on both sides of the lower mold, and the bottom is connected to the top of the device seat. The telescopic drive of the telescopic driving mechanism can control the lower mold and the upper mold to close.

[0008] Preferably, a drainage tube is provided in the middle of the upper mold, the top of the drainage tube is connected to a guide bucket, connecting blocks are provided on both sides of the guide bucket, and the two sides of the guide bucket are connected to the first fixing groove, and the drainage tube and the guide bucket play a role in guiding the drainage of the plastic.

[0009] Preferably, both sides of the first movable cavity are connected with a first movable groove, the interior of the first movable groove is connected with a lubrication rod, the end sleeve of the lubrication rod is outerly provided with a first spring, the top of the first spring is tightly attached to the bottom of the sliding sleeve, and the resilience of the first spring can assist the lifting cylinder and the lifting plate in the lifting operation.

[0010] Preferably, both sides of the lifting cylinder are connected with sliding sleeves, and the sliding sleeves are arranged outside the lubrication rod.

[0011] Preferably, a positioning hole matching the second plug-in component is connected to the bottom of the turntable.

[0012] Preferably, a first limit block is provided inside the connecting block, one side of the first limit block is connected to the inner side of the connecting block through a second spring, the other side of the first limit block is connected to a first plug matching the first plug slot, the front side of the first limit block is connected to a first operating rod, and the front side of the connecting block is connected to a first limit slot matching the first operating rod, and the first operating rod can be controlled to slide along the first limit slot to control the plugging state with the first plug slot.

[0013] Preferably, one side of the second movable groove is connected to a second fixing groove matching the second plugging piece.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] (1) The drainage molding device for plastic part injection molding drives the driven conical teeth and the screw to rotate by driving the active conical teeth to rotate on the rotating turntable, and then uses the restoring property of the first spring to synchronously push up the lifting cylinder and the sliding sleeve, and uses the ejection plate to quickly eject the mold formed in the lower mold, which is convenient for workers to take out materials, and there is no need to manually pick out the mold sample in the lower mold, which greatly improves the quality of the plastic part mold and enhances the overall production efficiency;

[0016] (2) This drainage molding device for plastic part injection molding can adjust the plugging state of the second plugging piece and the second plugging groove by setting and cooperating with the second control rod, the second limit block, the third spring, the second plugging piece and the second plugging groove. When the second plugging piece moves in the second active cavity and is retracted to the cavity inside the second active cavity along with the second limit block, the turntable loses its limit and the lifting cylinder drives the ejecting plate to move upward through the resilience of the first spring and the mutual transmission of the driven conical teeth and the active conical teeth. On the contrary, when the ejecting plate is pressed down to make the lifting cylinder and the sliding sleeve move downward to squeeze the first spring, the driven conical teeth and the active conical teeth rotate and drive the turntable to rotate. The second plugging piece can automatically penetrate the positioning hole and be positioned and plugged in the second plugging groove through the resilience of the third spring, thereby completing the limit function of the turntable. The control is stable, convenient for the staff to operate, and makes the material removal faster.

[0017] (3) This drainage molding device for plastic part injection molding can smoothly guide the molten plastic to the upper mold and cooperate with the lower mold to perform injection molding by cooperating with the drainage pipe and the guide bucket. The first limit block, the first control rod, the first plug-in component, the second spring and the first plug-in groove can be set and used in coordination to control the plugging state with the first plug-in groove, so as to facilitate the later disassembly of the guide bucket and the drainage pipe as a whole, facilitate cleaning or replacement, and avoid clogging of the drainage pipe due to long-term use, which affects the injection molding drainage work. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the front view structure of the utility model;

[0019] Figure 2 For this utility model Figure 1 The enlarged structural diagram at A in the middle;

[0020] Figure 3 This is a front view structural diagram of the connection between the connecting block and the first control rod of the utility model;

[0021] Figure 4 This is a schematic diagram of the connection structure between the device seat, the turntable and the connection seat of the utility model;

[0022] Figure 5 It is a schematic diagram of the top view of the structure of the connection between the lower mold and the top plate of the utility model.

[0023] In the figure: 1, device seat; 2, lower mold; 3, upper mold; 4, connecting block; 5, telescopic drive mechanism; 6, drainage pipe; 7, guide bucket; 701, first insertion groove; 8, ejector plate; 9, first movable cavity; 901, first movable groove; 10, screw; 11, lifting cylinder; 1101, sliding sleeve; 12, lubricating rod; 13, first spring; 14, driven conical gear; 15, active conical gear; 16, transmission rod; 17, turntable; 17 01, positioning hole; 18, connecting seat; 19, connecting block; 1901, first limiting groove; 20, first limiting block; 2001, first control rod; 2002, first plug; 21, second spring; 22, second movable groove; 2201, second plug-in groove; 23, second movable cavity; 2301, second limiting groove; 24, second limiting block; 2401, second plug; 2402, second control rod; 25, third spring. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1-5 , the utility model provides an embodiment: a drainage molding device for injection molding of plastic parts, including a device seat 1, a ejector plate 8, a turntable 17 and a connecting seat 18, the top of the device seat 1 is connected to the lower mold 2, the bottom of the lower mold 2 is provided with an ejector plate 8, the middle of the device seat 1 is connected to the first active cavity 9, the interior of the first active cavity 9 is connected to the screw 10, the outer sleeve of the screw 10 is provided with a lifting cylinder 11, the outer surface of the screw 10 is connected to the driven conical gear 14, the bottom of one side of the driven conical gear 14 is meshed and connected with the active conical gear 15, the interior of the active conical gear 15 is connected with a transmission rod 16, a turntable 17 and a connecting seat 18 are provided on one side of the device seat 1, the rotating turntable 17 drives the active conical gear 15 to rotate to drive the driven conical gear 14 and the screw 10 to rotate, and then the restorability of the first spring 13 is used to make the lifting cylinder 11 and the sliding sleeve 1101 synchronously push up, and the mold formed in the lower mold 2 is quickly ejected by using the ejector plate 8;

[0026] One end of the transmission rod 16 passes through one side of the device seat 1 and is connected to the turntable 17. The connecting seat 18 is located at the bottom of the turntable 17. The top of the connecting seat 18 is connected to a second movable groove 22 matching the turntable 17. The interior of the connecting seat 18 is connected to a second movable cavity 23. The top of the second movable cavity 23 is connected to a second limiting groove 2301. A second limiting block 24 is arranged inside the second movable cavity 23. The two sides of the second limiting block 24 are respectively connected to a second plug 2401 and a third spring 25. One side of the third spring 25 is connected to the inner side of the second movable cavity 23. The top of the second limiting block 24 is connected to a second operating rod 2402. The second operating rod 2402 is movably arranged in the second limiting groove 2301. The second operating rod 2402, the second limiting block 24, the third spring 25, the second plug 2401 and the second The setting and coordinated use of the insertion groove 2201 can regulate the insertion state of the second insertion piece 2401 and the second insertion groove 2201. When the second insertion piece 2401 is moved and retracted to the inner cavity of the second active cavity 23 along with the second limiting block 24 in the second active cavity 23, the turntable 17 loses its limit and through the resilience of the first spring 13 and the mutual transmission effect of the driven conical teeth 14 and the active conical teeth 15, the lifting cylinder 11 can drive the ejection plate 8 to push up. On the contrary, when the ejection plate 8 is pressed down to make the lifting cylinder 11 and the sliding sleeve 1101 move downward to squeeze the first spring 13, the driven conical teeth 14 and the active conical teeth 15 rotate and drive the turntable 17 to rotate. The second insertion piece 2401 can automatically penetrate the positioning hole 1701 and the second insertion groove 2201 for positioning and insertion through the resilience of the third spring 25, thereby completing the limiting effect on the turntable 17.

[0027] An upper mold 3 matching the lower mold 2 is arranged above the lower mold 2. Connecting blocks 4 are connected to both sides of the top of the upper mold 3. A telescopic driving mechanism 5 is installed at the bottom of the connecting block 4. The telescopic driving mechanism 5 is located on both sides of the lower mold 2, and the bottom is connected to the top of the device seat 1.

[0028] A drainage tube 6 is provided in the middle of the upper mold 3, and a guide hopper 7 is connected to the top of the drainage tube 6. Connecting blocks 19 are provided on both sides of the guide hopper 7. Both sides of the guide hopper 7 are connected to first insertion grooves 701. The drainage tube 6 and the guide hopper 7 cooperate to guide the molten plastic smoothly to the upper mold 3 and cooperate with the lower mold 2 to perform injection molding.

[0029] Both sides of the first movable cavity 9 are connected with first movable grooves 901 , the interior of the first movable groove 901 is connected with a lubricating rod 12 , the end of the lubricating rod 12 is covered with a first spring 13 , and the top of the first spring 13 is in close contact with the bottom of the sliding sleeve 1101 .

[0030] Both sides of the lifting cylinder 11 are connected with sliding sleeves 1101 , and the sliding sleeves 1101 are slidably mounted on the outside of the lubricating rod 12 .

[0031] The bottom of the rotating disk 17 is connected with a positioning hole 1701 matching with the second plug-in member 2401 .

[0032] A first limit block 20 is provided inside the connecting block 19, one side of the first limit block 20 is connected to the inner side of the connecting block 19 through the second spring 21, and the other side of the first limit block 20 is connected to a first plug 2002 matching the first plug slot 701, and the front side of the first limit block 20 is connected to a first operating rod 2001, and the front side of the connecting block 19 is connected to a first limit slot 1901 matching the first operating rod 2001. Through the setting and coordinated use of the first limit block 20, the first operating rod 2001, the first plug 2202 and the first plug slot 701 can be controlled to connect. The latter disassembly of the guide bucket 7 and the drainage pipe 6 as a whole is convenient for cleaning or replacement, and the drainage pipe 6 is prevented from being blocked due to long-term use.

[0033] One side of the second movable slot 22 is connected with a second fixing slot 2201 matching with the second fixing member 2401 .

[0034] When the embodiment of the present application is in use: the second operating rod 2402, the second limiting block 24, the third spring 25, the second plug 2401 and the second plug slot 2201 are set and used in combination, and the plugging state of the second plug 2401 and the second plug slot 2201 can be adjusted. When the second plug 2401 moves in the second active cavity 23 and is retracted into the inner cavity of the second active cavity 23 along with the second limiting block 24, the turntable 17 loses its limit and through the resilience of the first spring 13 and the mutual transmission effect of the driven conical teeth 14 and the active conical teeth 15, the lifting cylinder 11 can drive the ejection plate 8 to push up, and vice versa, the ejection plate 8 is pressed down to make the lifting cylinder 11 and the sliding sleeve 1101 move down When the first spring 13 is moved to be squeezed, the driven conical gear 14 and the active conical gear 15 rotate to drive the turntable 17 to rotate, and the second plug 2401 can automatically penetrate the positioning hole 1701 and the second plug groove 2201 through the resilience of the third spring 25 to position and plug, thereby completing the limiting effect on the turntable 17. The rotating turntable 17 drives the active conical gear 15 to rotate to drive the driven conical gear 14 and the screw 10 to rotate, and then the restorability of the first spring 13 is used to make the lifting cylinder 11 and the sliding sleeve 1101 synchronously push up, and the ejection plate 8 is used to quickly eject the mold formed in the lower mold 2, so that the staff can take the material conveniently, and there is no need to manually pick out the sample in the mold in the lower mold 2.

[0035] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A drainage molding device for plastic part injection molding, characterized in that: The invention comprises a device seat (1), a top material plate (8), a rotating disk (17) and a connecting seat (18); the top of the device seat (1) is connected to a lower mold (2); the bottom of the lower mold (2) is provided with a rotating disk (8); the middle of the device seat (1) is connected to a first movable cavity (9); the interior of the first movable cavity (9) is connected to a screw rod (10); the exterior of the screw rod (10) is sleeved with a lifting cylinder (11); the outer surface of the screw rod (10) is connected to a driven conical tooth (14); the bottom of one side of the driven conical tooth (14) is meshed with an active conical tooth (15); the interior of the active conical tooth (15) is connected to a transmission rod (16); a rotating disk (17) and a connecting seat (18) are provided on one side of the device seat (1); one end of the transmission rod (16) passes through a side of the device seat (1) and is connected to the driven conical tooth (15). The connecting seat (18) is connected to the rotating disk (17), the connecting seat (18) is located at the bottom of the rotating disk (17), the top of the connecting seat (18) is connected to a second movable groove (22) matching the rotating disk (17), the interior of the connecting seat (18) is connected to a second movable cavity (23), the top of the second movable cavity (23) is connected to a second limiting groove (2301), the interior of the second movable cavity (23) is provided with a second limiting block (24), the two sides of the second limiting block (24) are respectively connected to a second plug (2401) and a third spring (25), one side of the third spring (25) is connected to the inner side of the second movable cavity (23), the top of the second limiting block (24) is connected to a second operating rod (2402), and the second operating rod (2402) is movably arranged in the second limiting groove (2301).

2. A drainage molding device for plastic part injection molding according to claim 1, characterized in that: An upper mold (3) matching the lower mold (2) is arranged above the lower mold (2), and connecting blocks (4) are connected to both sides of the top of the upper mold (3). A telescopic driving mechanism (5) is installed at the bottom of the connecting block (4). The telescopic driving mechanism (5) is located on both sides of the lower mold (2), and the bottom is connected to the top of the device seat (1).

3. A drainage molding device for plastic part injection molding according to claim 2, characterized in that: A drainage tube (6) is provided in the middle of the upper mold (3), the top of the drainage tube (6) is connected to a flow guide hopper (7), both sides of the flow guide hopper (7) are provided with connecting blocks (19), and both sides of the flow guide hopper (7) are connected to first insertion grooves (701).

4. A drainage molding device for plastic part injection molding according to claim 1, characterized in that: Both sides of the first movable cavity (9) are connected to a first movable groove (901), the interior of the first movable groove (901) is connected to a lubrication rod (12), an end portion of the lubrication rod (12) is provided with a first spring (13) on its outer sleeve, and the top of the first spring (13) is tightly attached to the bottom of the sliding sleeve (1101).

5. A drainage molding device for plastic part injection molding according to claim 1, characterized in that: Both sides of the lifting cylinder (11) are connected with sliding sleeves (1101), and the sliding sleeves (1101) are slidably mounted on the outside of the lubrication rod (12).

6. A drainage molding device for plastic part injection molding according to claim 1, characterized in that: The bottom of the rotating disk (17) is connected with a positioning hole (1701) matching the second plug-in component (2401).

7. A drainage molding device for plastic part injection molding according to claim 3, characterized in that: A first limiting block (20) is arranged inside the connecting block (19); one side of the first limiting block (20) is connected to the inner side of the connecting block (19) via a second spring (21); the other side of the first limiting block (20) is connected to a first plugging piece (2002) matching the first plugging groove (701); the front side of the first limiting block (20) is connected to a first operating rod (2001); and the front side of the connecting block (19) is connected to a first limiting groove (1901) matching the first operating rod (2001).

8. The drainage molding device for plastic part injection molding according to claim 1, characterized in that: One side of the second movable groove (22) is connected to a second fixing groove (2201) matching the second inserting piece (2401).

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