Core pulling mechanism for injection mold

Abstract

The utility model discloses a core-pulling mechanism for an injection mold, which comprises a slide, slide core-pulling inserts mounted on two sides of the outside of the slide, a shovel base groove arranged in the slide, a shovel base slidably mounted in the shovel base groove, wear-resistant blocks mounted on two sides of the bottom of the slide, and limit blocks connected to the rear sides of the wear-resistant blocks. Slide guide blocks are installed on the left side and the right side of the slide, a moving block is installed at the bottom of the slide, tooth grooves are formed in the two sides of the moving block, the two sides of the moving block are in meshed connection with a transfer gear through the tooth grooves, the transfer gear is connected with a transfer gear shaft, the other side of the transfer gear is in meshed connection with a core-pulling gear, and the core-pulling gear is connected with a core-pulling gear shaft. A core-pulling shaft sleeve is installed at the top of the core-pulling gear shaft, and a bent pipe core-pulling insert is installed at the top of the core-pulling shaft sleeve. According to the utility model, the power of bent pipe core pulling is transferred to the mold opening power of slide core pulling, and the bent pipe core pulling power and the slide core pulling power use the same power and move simultaneously, so that the mold opening period is further shortened, and the production efficiency of the mold is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to injection mold technical field, concretely relates to a core pulling mechanism for injection mold. BACKGROUND

[0002] Mold, industrial production is used to injection, blow molding, extrusion, die casting or forging pressure forming, smelting, stamping and other methods to get the desired products of various molds and tools. In short, mold is used to make the tool of forming object, has the title of "mother of industry".

[0003] In injection mold design, often encounter the product that needs to design the core pulling of elbow pipe, because the traditional core pulling mechanism of elbow pipe is more complex, the parts of core pulling mechanism are more, and cannot be combined with the line position core pulling, lead to need to use multiple core pulling mechanisms to support use, make the whole core pulling process need to occupy a lot of time, thereby increase the mold opening cycle, reduce the production efficiency of mold. UTILITY MODEL CONTENT

[0004] In view of the problems in the above background art, the utility model aims at providing a core pulling mechanism for injection mold.

[0005] To achieve the above technical purpose, the utility model adopts the following technical scheme:

[0006] A core pulling mechanism for injection mold, including line position, the outside both sides of line position are installed with line position core pulling insert, the inside of line position is equipped with spade base groove, the inside of spade base groove is installed with spade base slidingly, the bottom both sides of line position are installed with wear block, the rear side of wear block is connected with limiting block, the left and right sides of line position are installed with line position guide block, the bottom of line position is installed with moving block, the both sides of moving block are equipped with gear slot, the both sides of moving block are connected with transfer gear through gear slot meshing, transfer gear is connected with transfer gear shaft, the other side of transfer gear is connected with core pulling gear, core pulling gear is connected with core pulling gear shaft, the top of core pulling gear shaft is installed with core pulling shaft sleeve, the top of core pulling shaft sleeve is installed with elbow pipe core pulling insert, the other side of elbow pipe core pulling insert is connected with line position core pulling insert.

[0007] Further limit, still include front mold and rear mold, the cavity of injection product is formed between the cooperation of front mold and rear mold, line position core pulling insert and elbow pipe core pulling insert are arranged in the cavity, the rear mold is equipped with empty slot at the corresponding core pulling shaft sleeve, the top of core pulling gear shaft is rotatably installed in the rear mold. Such structure design is convenient for the installation of line position core pulling insert and elbow pipe core pulling insert, and is convenient for the movement of core pulling shaft sleeve.

[0008] Further limited, the outside of the front die core is provided with an A plate, the top of the A plate is provided with a panel, the bottom of the panel is provided with a squeezing block, the bottom of the squeezing block penetrates the A plate and extends to the lower side thereof, the bottom of the squeezing block is arranged at the rear side of the row position and located in the limiting block, the top of the A plate is provided with an assembly block, the top of the shovel base penetrates the assembly block and is locked and arranged at the bottom of the panel. The structure design has the squeezing effect on the row position and the fixed mounting effect on the shovel base.

[0009] Further limited, the outside of the rear die core is provided with a B plate, the B plate is provided with a row position slot, the wear-resistant block, the limiting block and the row position guide block are arranged in the row position slot, the B plate is provided with a shovel base avoidance slot at the lower side of the row position slot, the bottom of the shovel base is arranged in the shovel base avoidance slot, and the transfer gear shaft is rotationally arranged in the B plate. The structure design facilitates the fixed mounting of the row position related parts.

[0010] Further limited, the two sides of the row position are provided with insert slots, the row position core-pulling insert is arranged in the insert slot, the upper side of the row position is provided with a latch slot, the latch slot is provided with a positioning latch in an L-shaped structure, and the bottom of the positioning latch penetrates the row position core-pulling insert and extends to the lower side thereof. The structure design enables the row position core-pulling insert to have the fixed mounting effect.

[0011] The utility model discloses the beneficial effects are: the utility model discloses the power of core-pulling of elbow pipe is switched to the mold opening power of row position core-pulling, realizes the multiple cooperation of core-pulling mechanism, simultaneously, in the process of core-pulling, the row position is driven to move through mold opening movement, realizes the row position core-pulling and elbow pipe core-pulling of product, and both use the same power, and move simultaneously, thereby further shorten the mold opening cycle, makes the whole core-pulling process fast, improves the production efficiency of mould. BRIEF DESCRIPTION OF DRAWINGS

[0012] The utility model can be further illustrated by the non-limiting embodiment shown in the drawings;

[0013] Figure 1 It is a shaft side structure schematic diagram of the core-pulling mechanism for injection mold of the utility model embodiment;

[0014] Figure 2 It is a row position core-pulling insert section structure schematic diagram of the core-pulling mechanism for injection mold of the utility model embodiment;

[0015] Figure 3 It is an assembly section structure schematic diagram of the core-pulling mechanism for injection mold of the utility model embodiment;

[0016] Figure 4 It is a B plate internal structure schematic diagram of the core-pulling mechanism for injection mold of the utility model embodiment;

[0017] The main element symbols are explained as follows:

[0018] Row 1, row core-pulling insert 2, shovel base groove 3, shovel base 4, wear block 5, limit block 6, row guide block 7, moving block 8, gear slot 9, transfer gear 10, transfer gear shaft 11, core-pulling gear 12, core-pulling gear shaft 13, core-pulling shaft sleeve 14, elbow core-pulling insert 15, front mold core 16, rear mold core 17, clearance groove 18, A plate 19, face plate 20, extrusion block 21, assembly block 22, B plate 23, row slot 24, shovel base clearance groove 25, insert slot 26, bolt slot 27, positioning bolt 28. DETAILED DESCRIPTION

[0019] In order for those skilled in the art to better understand the present application, the technical solutions of the present application are further described below in conjunction with the drawings and examples.

[0020] As shown in Figure 1 The core-pulling mechanism for the injection mold of the present application, the row 1 is provided with row core-pulling inserts 2 on the outer two sides, the row 1 is provided with a shovel base groove 3 inside, the shovel base groove 3 is provided with a shovel base 4 slidingly installed inside, the row 1 is provided with wear blocks 5 on the bottom of the two sides, the wear blocks 5 are connected with limit blocks 6 on the rear side, the row 1 is provided with row guide blocks 7 on the left and right sides, the row 1 is provided with a moving block 8 on the bottom, the moving block 8 is provided with gear slots 9 on the two sides, the moving block 8 is provided with transfer gears 10 engaged and connected on the two sides through the gear slots 9, the transfer gears 10 are connected with transfer gear shafts 11, the transfer gears 10 are provided with core-pulling gears 12 engaged and connected on the other side, the core-pulling gears 12 are connected with core-pulling gear shafts 13, the core-pulling gear shafts 13 are provided with core-pulling shaft sleeves 14 installed on the top, the core-pulling shaft sleeves 14 are provided with elbow core-pulling inserts 15 installed on the top, the elbow core-pulling inserts 15 are connected with the row core-pulling inserts 2 on the other side.

[0021] Preferably, the front mold core 16 and the rear mold core 17 are further included, the front mold core 16 and the rear mold core 17 cooperate to form a mold cavity of the injection product, the row core-pulling insert 2 and the elbow core-pulling insert 15 are arranged in the mold cavity, the rear mold core 17 is provided with a clearance groove 18 at the position corresponding to the core-pulling shaft sleeve 14, and the top of the core-pulling gear shaft 13 is rotatably installed in the rear mold core 17. Such a structure design facilitates the installation of the row core-pulling insert 2 and the elbow core-pulling insert 15, and facilitates the movement of the core-pulling shaft sleeve 14. In fact, other structure shapes of the front mold core 16 and the rear mold core 17 can also be considered for use according to specific conditions.

[0022] Preferably, the outside of the front mold core 16 is provided with an A plate 19, the top of the A plate 19 is provided with a face plate 20, the bottom of the face plate 20 is provided with a squeezing block 21, the bottom of the squeezing block 21 penetrates through the A plate 19 and extends to the lower side thereof, the bottom of the squeezing block 21 is arranged at the rear side of the row position 1 and located in the limiting block 6, the top of the A plate 19 is provided with an assembly block 22, the top of the shovel base 4 penetrates through the assembly block 22 and is locked and arranged at the bottom of the face plate 20. Such a structure design has a squeezing effect on the row position 1 and a fixed mounting effect on the shovel base 4. In fact, other structure shapes of the front mold part can also be considered according to specific conditions.

[0023] Preferably, the outside of the rear mold core 17 is provided with a B plate 23, the B plate 23 is provided with a row position slot 24, the wear-resistant block 5, the limiting block 6 and the row position guide block 7 are all arranged in the row position slot 24, the B plate 23 is provided with a shovel base clearance slot 25 at the lower side of the row position slot 24, the bottom of the shovel base 4 is arranged in the shovel base clearance slot 25, and the transfer gear shaft 11 is rotatably arranged in the B plate 23. Such a structure design is convenient for fixed mounting of the related parts of the row position 1. In fact, other structure shapes of the rear mold part can also be considered according to specific conditions.

[0024] Preferably, the two sides of the row position 1 are provided with insert slots 26, the row position core-pulling insert 2 is arranged in the insert slots 26, the row position 1 is provided with a latch slot 27 at the upper side of the insert slots 26, the latch slot 27 is arranged with a positioning latch 28 in an L-shaped structure, and the bottom of the positioning latch 28 penetrates through the row position core-pulling insert 2 and extends to the lower side thereof. Such a structure design has a fixed mounting effect on the row position core-pulling insert 2. In fact, other fixed structure shapes of the row position core-pulling insert 2 can also be considered according to specific conditions.

[0025] In the embodiment, when the mold is opened, the face plate 20 drives the shovel base 4 and the squeezing block 21 to move upward, so that the squeezing block 21 exits the squeezing state of the row position 1, and when the shovel base 4 moves upward, the lower side of the shovel base 4 slides along the shovel base slot 3, so that the shovel base 4 drives the row position 1, the row position 1 drives the row position core-pulling insert 2 to slide on the wear-resistant block 5, the row position core-pulling insert 2 performs row position core-pulling work, when the row position 1 slides, the row position 1 is pressed and guided by the row position guide block 7, so as to ensure that the row position 1 moves stably, the movement stroke of the row position 1 is limited by the limiting block 6, when the row position 1 moves, the bottom of the row position 1 drives the movement block 8, when the movement block 8 moves, the transfer gear 10 is driven by the two side gear slots 9 to rotate along the transfer gear shaft 11, the rotating transfer gear 10 drives the core-pulling gear 12 to rotate, the core-pulling gear 12 drives the core-pulling gear shaft 13, the core-pulling gear shaft 13 drives the core-pulling shaft sleeve 14, the core-pulling shaft sleeve 14 drives the elbow pipe core-pulling insert 15 to perform elbow pipe core-pulling movement in the rear mold core 17, so as to perform row position core-pulling and elbow pipe core-pulling at the same time when the mold is opened, and the mold opening cycle is shortened.

[0026] The above embodiments only exemplarily illustrate the principles and effects of the present application, and are not intended to limit the present application. Any person skilled in the art can modify or change the above embodiments without departing from the spirit and scope of the present application. Therefore, all equivalent modifications or changes made by those skilled in the art without departing from the spirit and technical concept disclosed by the present application should be covered by the claims of the present application.

Claims

1. A core pulling mechanism for an injection mold, characterized in that: The invention comprises a slide (1), slide core inserts (2) are installed on both sides of the outside of the slide (1), a shovel base groove (3) is provided in the slide (1), a shovel base (4) is slidably installed in the shovel base groove (3), wear-resistant blocks (5) are installed on both sides of the bottom of the slide (1), the rear side of the wear-resistant block (5) is connected to a limited block (6), slide guide blocks (7) are installed on the left and right sides of the slide (1), a moving block (8) is installed on the bottom of the slide (1), tooth grooves (9) are provided on both sides of the moving block (8), and the moving block ( 8) are meshedly connected with a transfer gear (10) on both sides through a tooth groove (9), the transfer gear (10) is connected to a transfer gear shaft (11), the other side of the transfer gear (10) is meshedly connected with a core-pulling gear (12), the core-pulling gear (12) is connected to a core-pulling gear shaft (13), a core-pulling sleeve (14) is installed on the top of the core-pulling sleeve (14), a bent tube core-pulling insert (15) is installed on the top of the core-pulling sleeve (14), and the other side of the bent tube core-pulling insert (15) is connected to the row core-pulling insert (2).

2. A core-pulling mechanism for an injection mold according to claim 1, characterized in that: It also includes a front mold core (16) and a rear mold core (17), wherein the front mold core (16) and the rear mold core (17) cooperate to form a mold cavity for the injection molded product, the sliding core-pulling insert (2) and the elbow core-pulling insert (15) are arranged in the mold cavity, the rear mold core (17) is provided with an air avoidance groove (18) at the corresponding core-pulling shaft sleeve (14), and the top of the core-pulling gear shaft (13) is rotatably installed in the rear mold core (17).

3. A core-pulling mechanism for an injection mold according to claim 2, characterized in that: An A-plate (19) is installed on the outer side of the front mold core (16), a panel (20) is installed on the top of the A-plate (19), a squeeze block (21) is installed on the bottom of the panel (20), the bottom of the squeeze block (21) passes through the A-plate (19) and extends to the lower side thereof, the bottom of the squeeze block (21) is arranged on the rear side of the row position (1) and is located in the limit block (6), an assembly block (22) is installed on the top of the A-plate (19), the top of the shovel base (4) passes through the assembly block (22) and is locked and installed on the bottom of the panel (20).

4. A core-pulling mechanism for an injection mold according to claim 3, characterized in that: A B plate (23) is installed on the outer side of the rear mold core (17), and the B plate (23) is provided with a row groove (24). The wear-resistant block (5), the limit block (6) and the row guide block (7) are all installed in the row groove (24). The B plate (23) is provided with a shovel base avoidance groove (25) on the lower side of the row groove (24). The bottom of the shovel base (4) is set in the shovel base avoidance groove (25), and the transfer gear shaft (11) is rotatably installed in the B plate (23).

5. The core-pulling mechanism for an injection mold according to claim 4, characterized in that: The two sides of the slider (1) are provided with insert grooves (26), the slider core-pulling insert (2) is installed in the insert grooves (26), the slider (1) is provided with a pin groove (27) on the upper side of the insert groove (26), and a positioning pin (28) arranged in an L-shaped structure is installed in the pin groove (27), and the bottom of the positioning pin (28) passes through the slider core-pulling insert (2) and extends to the lower side thereof.

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