A quick mold changing mechanism for injection molds

Abstract

The present invention relates to the technical field of injection molding equipment, and discloses a quick mold changing mechanism for an injection mold, comprising a supporting base, a material storage mechanism for storing injection molding raw materials provided on the supporting base, an injection molding mechanism and a mold mechanism for cooperating with the injection molding mechanism for injection molding on the supporting base, a connecting sleeve slidingly provided on the supporting base, a connecting top plate provided on the upper end of the connecting sleeve, and a locking mechanism for fixing the mold mechanism provided on the connecting top plate. The present invention locks and unlocks the mold mechanism by synchronously switching the unlocking and locking states of multiple sets of locking mechanisms during the rotation process. Multiple sets of mold mechanisms can be synchronously replaced at one time without repeatedly disassembling and assembling multiple sets of bolts, thereby improving the mold changing speed and reducing the downtime caused by mold changing. The injection molding mechanism can synchronously perform injection molding operations on multiple sets of mold mechanisms, thereby improving injection molding efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of injection molding equipment, in particular to a quick mold changing mechanism for an injection mold. Background Art

[0002] An injection mold is a mold that produces a molded product by injecting heated and molten plastic into a mold cavity under high pressure from an injection molding machine, and then cooling and solidifying it. It processes plastic raw materials into plastic products with specific shapes, sizes, and precision requirements based on the plastic's physical properties such as extrudability and moldability, and using the pressure, speed, and other conditions provided by the injection molding machine.

[0003] During the use of existing injection molds, it is inevitable to replace the injection molds due to wear and tear or production needs. Since the existing injection molds are usually connected to the injection molding base through multiple sets of bolts during installation, when the injection mold needs to be replaced, multiple sets of bolts need to be disassembled and assembled, which is inefficient. The injection molding tube and the injection mold also need to be disassembled and reconnected after installation, and only one set of injection molds can be replaced at a time. When encountering a production situation where there are many types of products but a small quantity of each type, the injection molds need to be replaced frequently, resulting in excessive downtime due to mold change, thereby reducing the production efficiency of injection molded products. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the above difficulties and provide a rapid mold changing mechanism for an injection mold.

[0005] In order to solve the above technical problems, the technical solution provided by the present invention is as follows: a quick mold changing mechanism for an injection mold, comprising a supporting base, a material storage mechanism for storing injection molding raw materials is provided on the supporting base, an injection molding mechanism and a mold mechanism for performing injection molding in cooperation with the injection molding mechanism is provided on the supporting base, a connecting sleeve is slidably provided on the supporting base, a connecting gear ring is provided on the outer side of the connecting sleeve, a connecting gear meshing with the connecting gear ring is rotatably provided on the supporting base, the connecting gear is driven by a motor, a connecting top plate is provided on the upper end of the connecting sleeve, a locking mechanism for fixing the mold mechanism is provided on the connecting top plate, the locking mechanism comprises a mold changing bracket provided on the connecting top plate, a locking slider is slidably provided in the mold changing bracket, A locking bracket is symmetrically rotated on the locking slider, and a locking pressure plate is provided on the upper end of the locking bracket. An adjusting tube is symmetrically provided in the mold changing bracket, and an adjusting nut is threadedly connected to the adjusting tube. An adjusting spring is provided on the upper end of the adjusting nut. An adjusting slide column connected to the adjusting spring slides in the adjusting tube, and the adjusting slide column extends one end of the adjusting tube and movably abuts against the locking bracket. A mold changing slide rod is slidably provided on the mold changing bracket, and a mold changing cross plate is provided on the mold changing slide rod. The locking slider is sleeved on the outer side of the mold changing cross plate, and a mold changing slider is provided at the lower end of the mold changing slide rod. A support block is provided on the support base, and a support slide groove is provided on the outer side of the support block. The support slide groove includes an inclined groove and a horizontal groove connected to each other, and the mold changing slider slides in cooperation with the support slide groove.

[0006] As an improvement, the mold mechanism includes a mold bracket movably arranged on the mold changing bracket and coordinated with the locking pressure plate, the mold bracket is provided with a mold support plate, the mold support plate is symmetrically provided with support slides, the support slides are symmetrically slidably provided with connecting sliders, one group of the connecting sliders is provided with a male template, the male template is connected with an injection molding tube, the other group of the connecting sliders is provided with a female template corresponding to the male template, and the mold support plate is provided with a driving mechanism for driving the male template and the female template to move synchronously.

[0007] As an improvement, the driving mechanism includes a fixed rod symmetrically arranged on the mold support plate, a driving support rod is rotatably provided on the fixed rod, a top support sleeve is rotatably provided at one end of the driving support rod, a rotating rod rotatably connected to the top support sleeve is rotatably provided on both the male template and the female template, a driving electric push rod is provided on the support slide rail, and a top support slide column is provided at the telescopic end of the driving electric push rod, and the top support slide column is slidably fitted with the two groups of top support sleeves on the same side.

[0008] As an improvement, the mold support plate is symmetrically provided with a blanking mechanism for pushing the injection molded product out of the male template and the female template. The blanking mechanism includes a blanking plate arranged on the mold support plate. The blanking plate is a Y-shaped structure. A blanking bracket is slidingly provided on the blanking plate. A group of the blanking brackets extends into the inner side of the male template and is provided with a blanking top plate at one end. The blanking bracket is sleeved with a blanking spring connected to the blanking plate.

[0009] As an improvement, the mold support plate is provided with a pushing mechanism that moves with the male template and pushes the injection molded product out of the mold support plate. The pushing mechanism includes a pushing gear rotatably arranged on the mold support plate, and a pushing rack meshing with the pushing gear is provided at the lower end of the male template. A mating rack meshing with the pushing gear is slidably provided on the mold support plate, and a pushing plate is provided at one end of the mating rack. A pushing block is slidably provided on the pushing plate, and pushing tension springs connected to the pushing plate are provided on both sides of the pushing block.

[0010] As an improvement, the storage mechanism includes a storage box arranged on a support base, a stirring rod is rotated in the storage box, the stirring rod is driven by a motor, a heating rod is provided in the storage box, and a feeding pipe connected to the injection molding mechanism is provided on the storage box.

[0011] As an improvement, the injection molding mechanism includes a supporting plate arranged on the storage box, a supporting electric push rod is provided on the supporting plate, a buffer box connected to the feed pipe is provided at the telescopic end of the supporting electric push rod, a plurality of groups of fixing frames are equidistantly arranged around the buffer box in a circumferential direction, an L bracket is rotatably provided on the fixing frame, a matching block is rotatably provided on the L bracket, a plurality of groups of injection molding frames are equidistantly arranged around the supporting plate in a circumferential direction, the injection molding frames are arranged corresponding to the fixing frames, an injection molding rod rotatably connected to the matching block is rotatably provided on the injection molding frames, an adjusting frame is connected to the matching block by bolts, an injection molding head matching the injection molding pipe is provided on the adjusting frame, and a material delivery pipe connected to the buffer box is provided at one end of the injection head.

[0012] Compared with the prior art, the present invention has the following advantages: multiple sets of mold locking mechanisms synchronously switch between unlocking and locking states during the rotation process. When the mold locking mechanism enters the locked state, it locks the mold mechanism. The injection molding mechanism can transport the injection molding raw materials in the material storage mechanism to the mold mechanism for injection molding. The mold locking mechanism enters the unlocked state. At this time, the mold mechanism can be replaced as needed. There is no need to repeatedly disassemble and assemble multiple sets of bolts. At the same time, multiple sets of mold mechanisms can be replaced synchronously at one time, which improves the mold changing speed and reduces the downtime caused by mold changing. The injection molding mechanism can synchronously perform injection molding operations on multiple sets of mold mechanisms, thereby improving the injection molding efficiency. Specifically:

[0013] 1. During the rotation of the mold-changing bracket, the mold-changing slider is driven to slide along the supporting slide groove. When the mold-changing slider drives the mold-changing slide bar to slide upward, the mold-changing horizontal plate drives the locking slider to slide upward synchronously, and the locking bracket is synchronously rotated and opened. At this time, multiple sets of locking brackets are in the unlocked state, and multiple sets of mold mechanisms to be replaced can be easily removed and replaced with new mold mechanisms. When the mold-changing slide bar slides downward, the mold-changing horizontal plate drives the locking slider to slide downward synchronously. During the downward movement of the locking slider, the locking bracket is synchronously rotated and closed. At this time, multiple sets of mold mechanisms are synchronously locked. Since multiple sets of mold mechanisms can be replaced and locked synchronously, the efficiency of mold changing is greatly improved, the downtime caused by mold changing is reduced, and the injection molding efficiency is improved;

[0014] 2. After the injection molding is completed, the male mold plate drives the push rack to move to the left, the push gear rotates in the opposite direction, and the push gear drives the mating rack meshing with it to move to the right. The mating rack drives the push plate and the push block to move to the right synchronously to push the injection molded product out of the unloading guide groove, thereby realizing the unloading of the injection molded product. Through the linkage structure, the unloading of the injection molded product can be completed without the need for power components or human participation, thus avoiding the wear of the appearance of the injection molded product caused by the accumulation of the injection molded product. At the same time, it can save energy and reduce maintenance costs. In addition, the operator is away from the high-temperature male and female mold plates, thereby improving the protection of the operator.

[0015] 3. The load-bearing electric push rod is shortened, and the buffer box drives the L bracket to rotate in the opposite direction through the fixed frame. The matching block moves away from the buffer box. The matching block drives the injection head to move synchronously through the adjustment frame. The injection head is connected to the injection pipe. At this time, the injection operation can be carried out. Since multiple groups of mold mechanisms can be injected at the same time, the efficiency of the injection operation is effectively improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The present invention is a structural schematic diagram of a quick mold changing mechanism for an injection mold.

[0017] Figure 2 The invention discloses an exploded view of a quick mold changing mechanism for an injection mold.

[0018] Figure 3 The present invention is a cross-sectional view of a quick mold changing mechanism for an injection mold.

[0019] Figure 4 The present invention is a structural schematic diagram of a mold locking mechanism of a quick mold changing mechanism for an injection mold.

[0020] Figure 5 The invention discloses an exploded view of a mold locking mechanism of a quick mold changing mechanism for an injection mold.

[0021] Figure 6 This is a cross-sectional view of a clamping mechanism of a quick mold change mechanism for an injection mold of the present invention. Figure 1 .

[0022] Figure 7 This is a cross-sectional view of a clamping mechanism of a quick mold change mechanism for an injection mold of the present invention. Figure 2 .

[0023] Figure 8 The present invention is a structural diagram of a mold mechanism of a quick mold changing mechanism for an injection mold.

[0024] Figure 9 The invention discloses an exploded view of a mold mechanism of a quick mold changing mechanism for an injection mold.

[0025] Figure 10The present invention is a cross-sectional view of a mold mechanism of a quick mold change mechanism for an injection mold.

[0026] Figure 11 The invention discloses an exploded view of an injection mechanism of a quick mold changing mechanism for an injection mold.

[0027] Figure 12 It is a cross-sectional view of a material storage mechanism of a quick mold changing mechanism for an injection mold of the present invention.

[0028] Figure 13 The present invention is a cross-sectional view of a connecting sleeve portion of a quick mold change mechanism for an injection mold.

[0029] As shown in the figure: 1. Support base; 11. Support block; 12. Support chute; 2. Material storage mechanism; 21. Material storage box; 22. Heating rod; 23. Feed pipe; 24. Stirring rod; 3. Injection mechanism; 31. Injection bracket; 32. Injection rod; 33. L bracket; 34. Adjustment frame; 341. Injection head; 342. Feed pipe; 35. Buffer box; 351. Fixed frame; 36. Loading plate; 361. Loading electric push rod; 3 7. Matching block; 4. Locking mechanism; 41. Mold changing bracket; 411. Centering plate; 412. Centering spring; 413. Anti-rebound ejector rod; 414. Anti-rebound spring; 42. Mold changing slide bar; 421. Mold changing cross plate; 422. Mold changing column; 423. Mold changing slide bar; 43. Locking slide bar; 431. Locking bracket; 432. Locking pressure plate; 433. Locking pressure block; 44. Adjusting slide bar; 441. Adjusting spring; 442. Adjusting screw Mother; 443, adjustment tube; 5, connecting sleeve; 51, connecting top plate; 52, connecting ring; 53, connecting gear; 54, connecting gear ring; 6, mold mechanism; 61, mold bracket; 611, mold support plate; 612, support slide; 613, locking pressure groove; 614, blanking guide groove; 62, connecting slider; 621, male template; 622, female template; 623, injection tube; 63, blanking mechanism; 631, blanking plate; 6 32. Unloading bracket; 633. Unloading top plate; 634. Unloading spring; 64. Driving mechanism; 641. Fixed rod; 642. Driving support rod; 643. Top support sliding sleeve; 644. Rotating rod; 645. Top support sliding column; 646. Driving electric push rod; 65. Pushing mechanism; 651. Pushing rack; 652. Pushing gear; 653. Matching rack; 654. Pushing plate; 655. Pushing stop block; 656. Pushing tension spring. DETAILED DESCRIPTION

[0030] The present invention will be described in further detail below with reference to the accompanying drawings.

[0031] Combined with attachment Figure 1 , Attachment Figure 2 , Attachment Figure 3 With attached Figure 13As shown, a quick mold changing mechanism for an injection mold comprises a support base 1, the support base 1 is provided with a storage mechanism 2 for storing injection molding raw materials, the support base 1 is provided with an injection molding mechanism 3 and a mold mechanism 6 for cooperating with the injection molding mechanism 3 for injection molding, and the mold mechanism 6 can be provided with multiple groups as needed. A connecting sleeve 5 is slidingly provided on the support base 1, and a connecting gear ring 54 is provided on the outer side of the connecting sleeve 5. A connecting gear 53 that meshes with the connecting gear ring 54 is rotatably provided on the support base 1, and the connecting gear 53 is driven by a motor. A connecting top plate 51 is provided at the upper end of the connecting sleeve 5, and a plurality of connecting rings 52 are equidistantly provided on the connecting top plate 51 along the circumferential direction. The connecting rings 52 are arranged corresponding to the mold mechanism 6, and a locking mechanism 4 for fixing the mold mechanism 6 is provided on the connecting ring 52.

[0032] The working principle of the present invention is as follows: the motor drives the connecting gear 53 to rotate, and the connecting gear 53 drives the connecting sleeve 5 to rotate through the connecting gear ring 54 meshing therewith, and the connecting top plate 51 drives the connecting ring 52 to rotate synchronously, and the connecting ring 52 rotates synchronously through the locking mechanism 4. Multiple sets of locking mechanisms 4 synchronously switch between unlocking and locking states during the rotation process. When the locking mechanism 4 enters the locked state, the locking mechanism 4 locks the mold mechanism 6, and the position of the mold mechanism 6 is fixed. The injection molding mechanism 3 can transport the injection molding raw materials in the storage mechanism 2 to the mold mechanism 6 for injection molding operation, and as the locking mechanism 4 continues to rotate, the locking mechanism 4 enters the unlocked state, and the locking mechanism 4 releases the lock on the mold mechanism 6. At this time, the mold mechanism 6 can be replaced as needed, and multiple sets of mold mechanisms 6 can be replaced synchronously at one time, thereby improving the mold changing speed and reducing the downtime caused by mold changing. The injection molding mechanism 3 can synchronously perform injection molding operations on multiple sets of mold mechanisms 6, further improving the injection molding efficiency.

[0033] Combined with attachment Figure 3 , Attachment Figure 4 , Attachment Figure 5 , Attachment Figure 6 , Attachment Figure 7 , Attachment Figure 9 With attached Figure 13As shown, the locking mechanism 4 includes a mold changing bracket 41 arranged on the connecting top plate 51, the mold changing bracket 41 is a hollow structure, a locking slider 43 is slidably provided in the mold changing bracket 41, a locking bracket 431 is symmetrically rotated on the locking slider 43, the locking bracket 431 is a C-shaped structure, a locking pressure plate 432 is provided at the upper end of the locking bracket 431, the locking pressure plate 432 is a C-shaped structure, a locking pressure block 433 is symmetrically provided at the lower end of the locking pressure plate 432, an adjusting tube 443 is symmetrically provided in the mold changing bracket 41, an adjusting nut 442 is threadedly connected in the adjusting tube 443, an adjusting spring 441 is provided at the upper end of the adjusting nut 442, an adjusting slide column 44 connected to the adjusting spring 441 is slidably provided in the adjusting tube 443, and an adjusting The sliding column 44 extends out of the adjustment tube 443 and one end thereof is movably abutted against the locking bracket 431. A mold-changing slide bar 42 is slidably provided on the mold-changing bracket 41. A mold-changing cross plate 421 is provided on the mold-changing slide bar 42. The locking slide bar 43 is sleeved on the outer side of the mold-changing cross plate 421. A mold-changing slide bar 423 is provided at the lower end of the mold-changing slide bar 42. A mold-changing column 422 is provided at the upper end of the mold-changing slide bar 42 for sliding cooperation with the mold-changing bracket 41. A sliding protrusion is provided on the mold-changing column 422. A sliding groove cooperating with the sliding protrusion is provided on the mold-changing bracket 41. A support block 11 is provided on the support base 1. A support slide groove 12 is provided on the outer side of the support block 11. The support slide groove 12 includes an oblique groove and a horizontal groove that are interconnected. The mold-changing slide bar 423 slides with the support slide groove 12.

[0034] A centering disk 411 is slidably provided on the upper end of the mold changing bracket 41, a centering spring 412 connected to the centering disk 411 is provided inside the mold changing bracket 41, an anti-rebound push rod 413 is slidably provided on the mold changing bracket 41, and an anti-rebound spring 414 connected to the anti-rebound push rod 413 is provided inside the mold changing bracket 41.

[0035] When the mold-changing slide 423 is in a state of rotation, the mold-changing slide 423 drives the mold-changing slide bar 42 to slide upward along the axis of the mold-changing support 41, and the mold-changing cross plate 421 drives the locking slide bar 43 to slide upward synchronously.

[0036] Furthermore, when the mold mechanism 6 is placed on the mold changing bracket 41, the centering spring 412 cooperates with the centering disk 411 to perform self-centering on the mold mechanism 6, thereby improving the accuracy of the placement of the mold mechanism 6. At the same time, the setting of the anti-reverse ejector rod 413 avoids the reverse placement of the mold mechanism 6, thereby improving the accuracy of the operation, further improving the efficiency of the mold change, reducing the downtime caused by the mold change, and improving the injection molding efficiency.

[0037] Combined with attachment Figure 3 , Attachment Figure 4 , Attachment Figure 8 , Attachment Figure 9 With attached Figure 10 As shown, the mold mechanism 6 includes a mold bracket 61 movably arranged on the mold changing bracket 41 and matched with the locking pressure plate 432, a mold support plate 611 is provided on the mold bracket 61, and a locking pressure groove 613 that cooperates with the locking pressure block 433 is provided on the mold support plate 611, and a supporting slide rail 612 is symmetrically provided on the mold support plate 611, and a connecting slider 62 is symmetrically slidably provided on the supporting slide rail 612, one group of the connecting sliders 62 is provided with a male template 621, and the male template 621 is connected with an injection pipe 623, and another group of the connecting sliders 62 is provided with a female template 622 corresponding to the male template 621, and the male template 621 and the female template 622 are both provided with corresponding cooling cavities and exhaust cavities. This is the current existing technology and is therefore not reflected in the figure. A driving mechanism 64 that drives the male template 621 and the female template 622 to move synchronously is provided on the mold support plate 611, and a blanking guide groove 614 is obliquely provided on the mold support plate 611;

[0038] The driving mechanism 64 includes a fixed rod 641 symmetrically arranged on the mold support plate 611, a driving support rod 642 is rotatably provided on the fixed rod 641, and a top support slide sleeve 643 is rotatably provided at one end of the driving support rod 642. The male template 621 and the female template 622 are both rotatably provided with a rotating rod 644 rotatably connected to the top support slide sleeve 643. A driving electric push rod 646 is provided on the support slide rail 612, and a top support slide column 645 is provided at the telescopic end of the driving electric push rod 646. The top support slide column 645 is slidably matched with the two groups of top support slide sleeves 643 on the same side.

[0039] The working principle of the mold mechanism 6: the electric push rod 646 is driven to extend, and the electric push rod 646 drives the top support slide column 645 to move upward, and the top support slide column 645 drives the top support slide sleeve 643 that slides with it to move upward. In this process, due to the rotation limit of the top support slide sleeve 643 by the driving support rod 642, the two groups of top support slide sleeves 643 on the same side move upward and approach each other synchronously. The rotating rod 644 rotates and drives the male template 621 and the female template 622 to approach each other until they are closed, completing the process. After the mold closing operation is completed, the injection molding operation can be carried out through the injection molding tube 623. On the contrary, the electric push rod 646 is driven to shorten, and the electric push rod 646 drives the top support slide column 645 to move downward, and the top support slide column 645 drives the top support slide sleeve 643 that slides with it to move downward. The two groups of top support slide sleeves 643 on the same side move downward and move away from each other synchronously. The rotating rod 644 rotates and drives the male template 621 and the female template 622 away from each other, thereby realizing mold opening, which is convenient for unloading the injection molded product.

[0040] Combined with attachment Figure 8 , Attachment Figure 9 With attached Figure 10 As shown, the mold support plate 611 is symmetrically provided with a blanking mechanism 63 for pushing the injection molded product out of the male template 621 and the female template 622. The blanking mechanism 63 includes a blanking plate 631 arranged on the mold support plate 611, and the injection tube 623 is fixedly arranged on the blanking plate 631. The connection between the injection tube 623 and the male template 621 is made of a retractable material. The blanking plate 631 is a Y-shaped structure. A blanking bracket 632 is slidably provided on the blanking plate 631. A group of the blanking brackets 632 extend into the inner side of the male template 621 and are provided with a blanking top plate 633 at one end. Multiple groups of blanking top plates 633 are provided. A blanking spring 634 connected to the blanking plate 631 is sleeved on the blanking bracket 632.

[0041] When the male plate 621 and the female plate 622 move toward each other, the male plate 621 and the female plate 622 synchronously drive the corresponding blanking top plate 633 to move. Due to the elastic action of the blanking spring 634, the blanking top plate 633 maintains contact with the male plate 621, avoiding the quality of the injection molded product caused by the random movement of the blanking top plate 633. When the male plate 621 and the female plate 622 move away from each other, the male plate 621 and the female plate 622 synchronously drive the corresponding blanking top plate 633 to move until the end of the blanking bracket 632 contacts the blanking plate 631. After that, the male plate 621 and the female plate 622 continue to move, and the position of the blanking top plate 633 remains fixed, thereby ejecting the injection molded product on the male plate 621 or the female plate 622 to realize the blanking operation, without the need for manual blanking of the injection molded product, and the operation efficiency is high. At the same time, it can keep the operator away from the high-temperature male plate 621 and the female plate 622, thereby improving the protection capability of the operator.

[0042] Combined with attachment Figure 8 , Attachment Figure 9 With attached Figure 10 As shown, the mold support plate 611 is provided with a pushing mechanism 65 that moves with the male template 621 to push the injection molded product out of the mold support plate 611. The pushing mechanism 65 includes a pushing gear 652 rotatably set on the mold support plate 611, and a gear bracket is provided on the mold support plate 611. The pushing gear 652 is rotatably set on the gear bracket. The lower end of the male template 621 is provided with a pushing rack 651 engaged with the pushing gear 652, and a matching rack 653 engaged with the pushing gear 652 is slidably provided on the gear bracket. A pushing plate 654 is provided at one end of the matching rack 653, and a pushing stopper 655 is slidably provided on the pushing plate 654. Both sides of the pushing stopper 655 are provided with pushing tension springs 656 connected to the pushing plate 654.

[0043] The working principle of the pushing mechanism 65: When the male template 621 moves to the right for mold closing operation, the male template 621 drives the pushing rack 651 to move to the right synchronously, and the pushing rack 651 drives the pushing gear 652 engaged with it to rotate, and the pushing gear 652 drives the mating rack 653 engaged with it to move to the left, and the mating rack 653 drives the pushing plate 654 and the pushing stopper 655 to move to the left synchronously to prepare for the subsequent pushing. Afterwards, when the injection molding is completed, the male template 621 drives the pushing rack 651 to move to the left synchronously, and the pushing gear 652 drives the mating rack 653 engaged with it to move to the left. The bar 651 drives the push gear 652 meshing with it to rotate in the opposite direction, and the push gear 652 drives the mating rack 653 meshing with it to move to the right, and the mating rack 653 drives the push plate 654 and the push stop block 655 to move to the right synchronously to push the injection molded product out of the discharge guide groove 614, thereby realizing the discharge of the injection molded product. Through the linkage structure, the discharge of the injection molded product can be completed without setting up power components or manpower participation, avoiding wear on the appearance of the injection molded product caused by the accumulation of the injection molded products, and at the same time saving energy and reducing maintenance costs.

[0044] Combined with attachment Figure 2 , Attachment Figure 3 , Attachment Figure 11 With attached Figure 12 As shown, the storage mechanism 2 includes a storage box 21 provided on the support base 1, a stirring rod 24 is rotatably provided in the storage box 21, the stirring rod 24 is driven by a motor, a heating rod 22 is provided in the storage box 21, and a feeding pipe 23 connected to the injection molding mechanism 3 is connected to the storage box 21, and a delivery pump is provided on the feeding pipe 23. This is the current existing technology and is therefore not reflected in the drawings;

[0045] The injection molding mechanism 3 includes a supporting plate 36 arranged on the storage box 21, and a supporting electric push rod 361 is provided on the supporting plate 36. The telescopic end of the supporting electric push rod 361 is provided with a buffer box 35 connected to the feed pipe 23, and a plurality of groups of fixing frames 351 are equidistantly arranged around the buffer box 35 along the circumferential direction. An L bracket 33 is rotatably provided on the fixing frame 351, and a matching block 37 is rotatably provided on the L bracket 33. A plurality of groups of injection molding brackets 31 are equidistantly arranged around the supporting plate 36 along the circumferential direction. The injection molding bracket 31 is arranged corresponding to the fixing frame 351, and an injection molding rod 32 rotatably connected to the matching block 37 is rotatably provided on the injection molding bracket 31. The matching block 37 is connected to the adjusting frame 34 by bolts, and the adjusting frame 34 is provided with an injection head 341 that cooperates with the injection molding tube 623. One end of the injection head 341 is connected to a material delivery pipe 342 connected to the buffer box 35.

[0046] The working principle of the injection molding mechanism 3: the load-bearing electric push rod 361 extends, and the load-bearing electric push rod 361 drives the buffer box 35 to move upward, and the buffer box 35 drives the L bracket 33 to rotate through the fixed frame 351. Due to the rotation limit of the injection rod 32, the matching block 37 moves toward the buffer box 35, and the matching block 37 drives the injection head 341 to move synchronously through the adjustment frame 34. The injection head 341 is separated from the injection tube 623, and the mold changing operation can be carried out at this time. On the contrary, the load-bearing electric push rod 361 shortens, the buffer box 35 moves downward, and the buffer box 35 drives the L bracket 33 to rotate in the opposite direction through the fixed frame 351, and the matching block 37 moves away from the buffer box 35. The matching block 37 drives the injection head 341 to move synchronously through the adjustment frame 34, and the injection head 341 is connected to the injection tube 623, and the injection molding operation can be carried out at this time.

[0047] During the specific implementation of the present invention, when the injection molding operation is required, the load-bearing electric push rod 361 is shortened, the buffer box 35 moves downward and drives the L bracket 33 to rotate in the opposite direction through the fixing frame 351, and the matching block 37 drives the injection head 341 to connect with the injection tube 623 through the adjusting frame 34, completing the preparation operation before injection molding. After that, the electric push rod 646 is extended by the operation, and the top support slide column 645 drives the top support sliding sleeve 643 that slides with it to move upward. The two groups of top support sliding sleeves 643 on the same side move upward and simultaneously approach each other. The rotating rod 644 rotates and drives the male template 621 and the female template 622 to approach each other until they are closed, completing the mold closing. At this time, the injection molding operation can be carried out.

[0048] When it is necessary to change the mold, the operating load-bearing electric push rod 361 is extended, the buffer box 35 moves upward and drives the L bracket 33 to rotate through the fixed frame 351, the matching block 37 drives the injection head 341 to separate from the injection tube 623 through the adjustment frame 34, the motor drives the connecting gear 53 to rotate, the connecting sleeve 5 rotates, the connecting top plate 51 drives the mold changing bracket 41 to rotate synchronously through the connecting ring 52, the mold changing slider 423 slides along the supporting slide groove 12, the mold changing slider 423 slides to a higher horizontal groove, and the mold changing slider 423 drives the mold changing slide rod 42 upward along the axis of the mold changing bracket 41 The mold-changing cross plate 421 slides and drives the locking slider 43 to slide upward synchronously. Due to the support of the locking bracket 431 by the adjusting slide column 44, the locking bracket 431 rotates and opens synchronously. At this time, it is in the unlocked state, so that the mold bracket 61 that needs to be replaced can be removed and a new mold bracket 61 can be placed. After that, the connecting gear 53 rotates, and the mold-changing slider 423 slides to a horizontal groove with a lower height. During the downward movement of the locking slider 43, the locking bracket 431 rotates and closes synchronously, and the locking pressure block 433 is pressed into the locking pressure groove 613. At this time, the mold bracket 61 is in the locked state and the mold changing operation is completed.

[0049] The above description of the present invention and its embodiments is non-limiting. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if a person skilled in the art is inspired by the above and, without departing from the purpose of the present invention, designs structures and embodiments similar to the technical solution without creatively designing, they shall fall within the scope of protection of the present invention.

Claims

1. A quick mold change mechanism for an injection mold, comprising a support base (1), a material storage mechanism (2) for storing injection molding raw materials provided on the support base (1), an injection molding mechanism (3) and a mold mechanism (6) for performing injection molding in cooperation with the injection molding mechanism (3), the support base (1), characterized in that: A connecting sleeve (5) is slidably provided on the support base (1), a connecting gear ring (54) is provided on the outside of the connecting sleeve (5), a connecting gear (53) is rotatably provided on the support base (1) and meshed with the connecting gear ring (54), the connecting gear (53) is driven by a motor, a connecting top plate (51) is provided on the upper end of the connecting sleeve (5), a locking mechanism (4) for fixing the mold mechanism (6) is provided on the connecting top plate (51), the locking mechanism (4) comprises a mold changing bracket (41) provided on the connecting top plate (51), a locking slider (41) is slidably provided in the mold changing bracket (41), 3) A locking bracket (431) is symmetrically rotated on the locking slider (43), a locking pressure plate (432) is provided on the upper end of the locking bracket (431), an adjusting tube (443) is symmetrically provided in the mold changing bracket (41), an adjusting nut (442) is connected to the adjusting tube (443) by a thread, an adjusting spring (441) is provided on the upper end of the adjusting nut (442), an adjusting slide column (44) connected to the adjusting spring (441) is slidably provided in the adjusting tube (443), and one end of the adjusting slide column (444) extends out of the adjusting tube (443) and movably abuts against the locking bracket (431); A mold changing slide bar (42) is provided on the mold changing bracket (41) for sliding movement, a mold changing horizontal plate (421) is provided on the mold changing slide bar (42), a locking slide bar (43) is sleeved on the outside of the mold changing horizontal plate (421), a mold changing slide bar (42) is provided at the lower end of the mold changing slide bar (42), a support block (11) is provided on the support base (1), a support slide groove (12) is provided on the outside of the support block (11), the support slide groove (12) includes an oblique groove and a horizontal groove that are interconnected, the mold changing slide bar (423) and the support slide groove (12) are slidably matched, when the mold changing slide bar (423) slides to the horizontal groove with a higher height, the mold locking mechanism (4) is in an unlocked state, when the mold changing slide bar (423) slides to the horizontal groove with a lower height, the mold locking mechanism (4) is in a locked state; The material storage mechanism (2) comprises a material storage box (21) arranged on the support base (1), a stirring rod (24) is rotatably provided in the material storage box (21), the stirring rod (24) is driven by a motor, a heating rod (22) is provided in the material storage box (21), and a feeding pipe (23) connected to the injection molding mechanism (3) is provided on the material storage box (21); The injection molding mechanism (3) includes a bearing plate (36) arranged on a material storage box (21), a bearing electric push rod (361) is provided on the bearing plate (36), a buffer box (35) connected to the feed pipe (23) is provided at the telescopic end of the bearing electric push rod (361), a plurality of fixed frames (351) are provided around the buffer box (35) at equal intervals along the circumferential direction, an L bracket (33) is rotatably provided on the fixed frame (351), a matching block (37) is rotatably provided on the L bracket (33), and the bearing plate (36) is provided with a plurality of fixed frames (351) at equal intervals along the circumferential direction. ) is provided with a plurality of injection molding brackets (31) equidistantly around the circumferential direction, the injection molding brackets (31) are provided corresponding to the fixing brackets (351), an injection molding rod (32) rotatably connected to the matching block (37) is provided on the injection molding bracket (31), an adjusting bracket (34) is connected to the matching block (37) by bolts, an injection molding head (341) is provided on the adjusting bracket (34) and is matched with the injection molding tube (623), and one end of the injection molding head (341) is connected to a material delivery pipe (342) connected to the buffer box (35).

2. The rapid mold change mechanism for injection mold according to claim 1, characterized in that: The mold mechanism (6) includes a mold support (61) movably arranged on a mold changing support (41) and cooperating with a locking pressure plate (432), a mold support plate (611) is provided on the mold support plate (611), support slide rails (612) are symmetrically provided on the mold support plate (611), and connecting sliders (62) are symmetrically slidably provided on the support slide rails (612), one group of the connecting sliders (62) is provided with a male template (621), and an injection tube (623) is connected to the male template (621), and another group of the connecting sliders (62) is provided with a female template (622) corresponding to the male template (621), and a driving mechanism (64) for driving the male template (621) and the female template (622) to move synchronously is provided on the mold support plate (611).

3. The rapid mold change mechanism for injection mold according to claim 2, characterized in that: The driving mechanism (64) includes a fixed rod (641) symmetrically arranged on the mold support plate (611), a driving rod (642) is rotatably provided on the fixed rod (641), and a top support sliding sleeve (643) is rotatably provided on one end of the driving rod (642), and a rotating rod (644) rotatably connected to the top support sliding sleeve (643) is rotatably provided on the male template (621) and the female template (622), and a driving electric push rod (646) is provided on the support slide rail (612), and a top support sliding column (645) is provided at the telescopic end of the driving electric push rod (646), and the top support sliding column (645) is slidably matched with the two groups of the top support sliding sleeves (643) on the same side.

4. The rapid mold change mechanism for injection mold according to claim 2, characterized in that: The mold support plate (611) is symmetrically provided with a blanking mechanism (63) for pushing the injection molded product out of the male mold plate (621) and the female mold plate (622). The blanking mechanism (63) includes a blanking plate (631) provided on the mold support plate (611). The blanking plate (631) is a Y-shaped structure. A blanking bracket (632) is slidably provided on the blanking plate (631). A set of the blanking brackets (632) extends into the inner side of the male mold plate (621) and is provided with a blanking top plate (633) at one end. A blanking spring (634) connected to the blanking plate (631) is sleeved on the blanking bracket (632).

5. The rapid mold change mechanism for injection mold according to claim 2, characterized in that: The mold support plate (611) is provided with a pushing mechanism (65) that moves with the male mold plate (621) to push the injection molded product out of the mold support plate (611). The pushing mechanism (65) includes a pushing gear (652) rotatably arranged on the mold support plate (611), a pushing rack (651) meshing with the pushing gear (652) is provided at the lower end of the male mold plate (621), a matching rack (653) meshing with the pushing gear (652) is slidably provided on the mold support plate (611), a pushing plate (654) is provided at one end of the matching rack (653), a pushing block (655) is slidably provided on the pushing plate (654), and a pushing tension spring (656) connected to the pushing plate (654) is provided on both sides of the pushing block (655).

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