Injection mold with plastic recycling function

Abstract

The invention provides an injection mold with a plastic recycling function, and relates to the technical field of injection molds. A die female seat is fixed on the die frame body, a die male seat is arranged on the die frame body in a sliding manner, a first hydraulic cylinder is fixed on the die frame body, the extending end of the first hydraulic cylinder is fixed on the die male seat, and the die male seat and the die female seat are combined when the first hydraulic cylinder extends. The first cut-off seat of the mold male seat and the second cut-off seat of the mold female seat are linked through the second hydraulic cylinder and the third hydraulic cylinder, so that waste materials, such as pouring gate and runner aggregate, generated by injection molding can be accurately cut off, the complexity of manual cutting is avoided, and the production efficiency is improved. Meanwhile, the first cut-off base of the annular structure is matched with the annular groove of the die male base, the accurate cut-off position can be guaranteed, waste residues are reduced, and the material utilization rate is increased. And the inclined collecting plate in the mold frame body can guide the cut-off waste materials to slide to a recovery area along the inclined plane, so that the waste materials are prevented from being accumulated, and centralized recovery and reutilization are facilitated.

Description

Technical Field

[0001] The present invention relates to the technical field of injection molds, and particularly to an injection mold with a plastic recycling function. Background Art

[0002] An injection mold is a forming tool precision machined from materials such as steel. Molten plastic is injected into the cavity through high temperature and high pressure, and a plastic product with a specific shape is obtained after cooling. An injection mold is required during plastic processing.

[0003] During the injection process of the existing device, the injection liquid easily enters the gap between the mold base and the mold plug. After the injection is completed, the plastic at the gap forms waste that needs to be manually removed separately. The operation is cumbersome and cannot be automatically cut and recycled on the injection device. Summary of the Invention

[0004] The present invention relates to an injection mold with a plastic recycling function, which solves the problem that during the injection process of the existing device, the injection liquid easily enters the gap between the mold base and the mold plug, and after the injection is completed, the plastic at the gap forms waste that needs to be manually removed separately. The operation is cumbersome and cannot be automatically cut and recycled on the injection device.

[0005] The present invention provides an injection mold with a plastic recycling function, which specifically includes: a mold frame; a mold base is fixed on the mold frame, a mold plug slides on the mold frame, a first hydraulic cylinder is fixed on the mold frame, and the extending end of the first hydraulic cylinder is fixed on the mold plug. When the first hydraulic cylinder extends, the mold plug and the mold base are combined; a circular groove is formed on the left end face of the mold plug, and a circular first cutting seat is clamped in the circular groove. The size of the first cutting seat matches that of the circular groove. A first sliding seat is welded to the right end face of the first cutting seat, and the first sliding seat slides on the mold plug. A second hydraulic cylinder is fixed on the right end face of the mold plug, and the extending end of the second hydraulic cylinder is fixed on the first sliding seat.

[0006] Furthermore, a second cutting seat slides in the mold base. The second cutting seat can slide left and right in the mold base. The second cutting seat has the same size as the first cutting seat. A second sliding seat is welded to the left end face of the second cutting seat. The second sliding seat passes through the mold base and the mold frame, and a third hydraulic cylinder is welded to the left end face of the mold frame. The extending end of the third hydraulic cylinder is fixed on the second sliding seat.

[0007] Further, the first truncation seat, the first sliding seat, the second hydraulic cylinder, the second truncation seat, the second sliding seat and the third hydraulic cylinder together form a truncation assembly; a discharging assembly is installed on the mold frame body. The discharging assembly is composed of a connecting rod, a discharging plate, a guiding rod, a connecting seat and a spiral spring. A connecting rod slides on the mold frame body. The connecting rod passes through the mold female seat. A discharging plate is welded to the right end of the connecting rod. The discharging plate is located in the mold groove of the mold female seat.

[0008] Further, a flange is welded to the left end face of the connecting rod. Two guiding rods with a stepped shaft structure slide on the flange. The left ends of the two guiding rods are welded to the connecting seat. The left end of the connecting seat is welded to the second sliding seat. A spiral spring is sleeved on each guiding rod. When the two spiral springs elastically extend, the connecting seat is in close contact with the flange on the guiding rod.

[0009] Further, a vibration assembly is installed on the mold female seat. The vibration assembly is composed of a protrusion, a mounting arm and a contact rod. The protrusions are welded to the top end face of the mold female seat in a rectangular array. The protrusions are semi-cylindrical structures.

[0010] Further, two mounting arms are fixed to the top end face of the mold male seat. The two mounting arms are both L-shaped structures. A contact rod is welded to the bottom end face of each mounting arm. The lower ends of the two contact rods are in contact with the top end face of the mold female seat. The two contact rods are aligned with the protrusions. When the mold male seat moves to the right, the two contact rods are in a continuous elastic clamping state with the protrusions.

[0011] Further, the two contact rods are both cylindrical rod structures. The lower ends of each contact rod are polished. After polishing, the lower ends of the two contact rods are both arc-shaped structures.

[0012] Further, the mold frame body is fixed to the workbench by four fixing screws. Two auxiliary grooves are provided on the mold frame body. The two auxiliary grooves are both rectangular groove structures. The left two fixing screws are hidden in the left auxiliary groove, and the right two fixing screws are hidden in the right auxiliary groove.

[0013] Further, a collecting plate is welded inside the mold frame body. The collecting plate is a rectangular plate structure. The collecting plate is located below the mold female seat and the mold male seat. The collecting plate is welded in an inclined shape.

[0014] The present invention provides an injection mold with a plastic recycling function, having the following beneficial effects:

[0015] In terms of waste treatment: The first truncation seat of the male mold base and the second truncation seat of the female mold base can accurately cut the waste generated by injection molding, such as gate, runner condensate, etc., through the linkage of the second and third hydraulic cylinders, avoiding the tediousness of manual cutting and improving production efficiency. At the same time, the annular first truncation seat matches the annular groove of the male mold base, which can ensure accurate cutting position, reduce waste residue and improve material utilization rate. The inclined collection plate in the mold frame can guide the cut waste to slide down along the inclined surface to the recycling area, avoiding waste accumulation, facilitating centralized recycling and reuse, and meeting environmental protection requirements.

[0016] In the unloading and demolding process: In the unloading assembly, the connecting rod, unloading plate, spiral spring, etc. cooperate. When the third hydraulic cylinder contracts, it drives the unloading plate to push out the finished product. The elastic buffer of the guide rod and the spiral spring can offset the pushing impact force, realizing gentle demolding, avoiding part deformation or surface scratches caused by traditional rigid pushing, especially suitable for thin-walled and precision parts; in the vibration assembly, when the male mold base moves, the contact rod and the protrusion at the top of the female mold base generate vibration through continuous elastic clamping, which can reduce the adhesion force between the finished product and the mold, avoid sticking and tearing problems, and at the same time prompt the waste to fall quickly, reduce manual intervention and improve the demolding effect.

[0017] In terms of mold durability and maintenance convenience: The lower end of the contact rod is ground into an arc structure, which converts sliding friction into rolling friction when contacting the semi-cylindrical protrusion, reduces the wear rate, extends the mold life and reduces the maintenance frequency. The auxiliary groove of the mold frame hides the fixing screw, avoiding the screw from being exposed and colliding to deform or damage the thread, ensuring convenient installation and disassembly, and reducing the precision problems caused by screw damage.

[0018] During the production process: Through the linkage of hydraulic and mechanical structures for functions such as truncation, unloading and vibration, no additional manual operation is required, the timing of each action is accurate, the production cycle is shortened, and it is suitable for large-scale automated production; the first hydraulic cylinder drives the male and female mold bases to merge, and cooperates with the truncation assembly to cut synchronously, ensuring the mold is tightly closed, avoiding problems such as flash and dimensional deviation, and improving the precision and surface quality of the finished product. Description of the Drawings

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings of the embodiments will be briefly introduced below.

[0020] The drawings in the following description only relate to some embodiments of the present invention and do not limit the present invention.

[0021] In the drawings:

[0022] Figure 1 The front view structural schematic diagram of the injection mold with plastic recycling function of the present invention is shown;

[0023] Figure 2shows the present invention Figure 1 schematic enlarged view of the structure at position A;

[0024] Figure 3 shows the present invention Figure 1 schematic enlarged view of the structure at position B;

[0025] Figure 4 shows the axonometric structure schematic diagram of the injection mold with plastic recycling function of the present invention;

[0026] Figure 5 shows the axonometric structure schematic diagram of the injection mold with plastic recycling function of the present invention after partial sectioning;

[0027] Figure 6 shows the front view structure schematic diagram of the injection mold with plastic recycling function of the present invention after partial sectioning;

[0028] Figure 7 shows the present invention Figure 5 axonometric structure schematic diagram after further sectioning;

[0029] Figure 8 shows the present invention Figure 7 schematic enlarged view of the structure at position C.

[0030] List of reference numerals

[0031] 1. Mold frame; 101. Fixed screw; 102. Auxiliary groove; 103. Collection plate; 2. Mold female seat; 3. Mold male seat; 4. First hydraulic cylinder; 5. Truncation assembly; 501. First truncation seat; 502. First sliding seat; 503. Second hydraulic cylinder; 504. Second truncation seat; 505. Second sliding seat; 506. Third hydraulic cylinder; 6. Unloading assembly; 601. Connecting rod; 602. Unloading plate; 603. Guide rod; 604. Connecting seat; 605. Helical spring; 7. Vibration assembly; 701. Protrusion; 702. Mounting arm; 703. Contact rod. Detailed implementation manners

[0032] Embodiment 1: Please refer to Figures 1 to 8 :

[0033] The present invention provides an injection mold with a plastic recycling function, including: a mold frame body 1; a mold female seat 2 is fixed on the mold frame body 1, a mold male seat 3 slides on the mold frame body 1, a first hydraulic cylinder 4 is fixed on the mold frame body 1, and the extending end of the first hydraulic cylinder 4 is fixed on the mold male seat 3. When the first hydraulic cylinder 4 extends, the mold male seat 3 is combined with the mold female seat 2; an annular groove is formed on the left end face of the mold male seat 3, and an annular first cutting seat 501 is clamped in the annular groove. The size of the first cutting seat 501 matches that of the annular groove. A first sliding seat 502 is welded to the right end face of the first cutting seat 501. The first sliding seat 502 slides on the mold male seat 3. A second hydraulic cylinder 503 is fixed on the right end face of the mold male seat 3, and the extending end of the second hydraulic cylinder 503 is fixed on the first sliding seat 502. During use, when the second hydraulic cylinder 503 is driven to contract, the second hydraulic cylinder 503 can drive the first sliding seat 502 to move leftward, and the first sliding seat 502 drives the first cutting seat 501 to move leftward to complete the cutting of waste materials, facilitating subsequent recycling.

[0034] Among them, a second cutting seat 504 slides in the mold female seat 2. The second cutting seat 504 can slide left and right in the mold female seat 2. The second cutting seat 504 is the same size as the first cutting seat 501. A second sliding seat 505 is welded to the left end face of the second cutting seat 504. The second sliding seat 505 passes through the mold female seat 2 and the mold frame body 1. A third hydraulic cylinder 506 is welded to the left end face of the mold frame body 1, and the extending end of the third hydraulic cylinder 506 is fixed on the second sliding seat 505. When cutting is required, the third hydraulic cylinder 506 is driven to extend, and the third hydraulic cylinder 506 drives the second sliding seat 505 and the second cutting seat 504 to move leftward. At this time, the first cutting seat 501 is inserted into the sliding groove of the second cutting seat 504 to complete the cutting.

[0035] Among them, the first cutting seat 501, the first sliding seat 502, the second hydraulic cylinder 503, the second cutting seat 504, the second sliding seat 505, and the third hydraulic cylinder 506 together form a cutting assembly 5; a discharging assembly 6 is installed on the mold frame body 1. The discharging assembly 6 is composed of a connecting rod 601, a discharging plate 602, a guide rod 603, a connecting seat 604, and a spiral spring 605. A connecting rod 601 slides on the mold frame body 1. The connecting rod 601 passes through the mold female seat 2. A discharging plate 602 is welded to the right end of the connecting rod 601. The discharging plate 602 is located in the mold groove of the mold female seat 2.

[0036] Among them, a flange is welded to the left end face of the connecting rod 601. Two guide rods 603 with a stepped shaft structure slide on the flange. The left ends of the two guide rods 603 are welded to the connecting seat 604. The left end of the connecting seat 604 is welded to the second sliding seat 505. A spiral spring 605 is sleeved on each guide rod 603. When the two spiral springs 605 elastically expand, the connecting seat 604 is in close contact with the flange on the guide rod 603. During unloading, the third hydraulic cylinder 506 is driven to contract. The third hydraulic cylinder 506 drives the second sliding seat 505, the connecting seat 604, the connecting rod 601 and the unloading plate 602 to move to the right. At this time, the unloading action can be completed under the action of the unloading plate 602.

[0037] Among them, a vibration assembly 7 is installed on the female die base 2. The vibration assembly 7 is composed of a protrusion 701, a mounting arm 702 and a contact rod 703. The protrusions 701 are welded to the top end face of the female die base 2 in a rectangular array. The protrusions 701 are of a semi-cylindrical structure.

[0038] Among them, two mounting arms 702 are fixed to the top end face of the male die base 3. The two mounting arms 702 are both of an L-shaped structure. A contact rod 703 is welded to the bottom end face of each mounting arm 702. The lower ends of the two contact rods 703 are both in contact with the top end face of the female die base 2. The two contact rods 703 are aligned with the protrusions 701. When the male die base 3 moves to the right, the two contact rods 703 are both in a continuous elastic clamping state with the protrusions 701. Vibration can be generated through the continuous elastic clamping of the contact rod 703 and the protrusion 701. Through vibration, the demoulding effect of the finished parts can be improved and the waste materials after cutting can be quickly dropped.

[0039] Among them, the two contact rods 703 are both of a cylindrical rod structure. The lower ends of each contact rod 703 are polished. After polishing, the lower ends of the two contact rods 703 are both of an arc structure. During use, the wear of the contact rod 703 and the protrusion 701 can be reduced, and the subsequent maintenance cost is reduced.

[0040] Among them, the die frame 1 is fixed to the workbench through four fixing screws 101. Two auxiliary grooves 102 are opened on the die frame 1. The two auxiliary grooves 102 are both of a rectangular groove structure. The left two fixing screws 101 are hidden in the left auxiliary groove 102, and the right two fixing screws 101 are hidden in the right auxiliary groove 102. During use, since the four fixing screws 101 are all hidden in the auxiliary grooves 102, the probability of the fixing screws 101 being knocked is reduced, and thus the difficulty of disassembly caused by the fixing screws 101 being knocked is avoided.

[0041] Embodiment 2, on the basis of Embodiment 1, as Figures 1 - 8As shown in the figure, a collecting plate 103 is welded inside the mold frame body 1. The collecting plate 103 is a rectangular plate structure. The collecting plate 103 is located below the mold female seat 2 and the mold male seat 3. The collecting plate 103 is welded in an inclined shape. When fertilizers fall during use, they can be guided and recycled through the inclined collecting plate 103.

[0042] The working principle of this embodiment: During injection molding, the first hydraulic cylinder 4 is driven to extend to complete the mold closing action. After the mold is closed, the injection liquid is injected into the injection slots in the mold female seat 2 and the mold male seat 3; when cutting off the waste, the second hydraulic cylinder 503 is driven to contract. The second hydraulic cylinder 503 can drive the first sliding seat 502 to move leftward. The first sliding seat 502 drives the first cutting seat 501 to move leftward to complete the cutting of the waste; at the same time, the third hydraulic cylinder 506 is driven to extend. The third hydraulic cylinder 506 drives the second sliding seat 505 and the second cutting seat 504 to move leftward. At this time, the first cutting seat 501 is inserted into the sliding slot of the second cutting seat 504 to complete the cutting; the first hydraulic cylinder 4 is driven to contract to open the mold. At the same time, continuous elastic clamping between the contact rod 703 and the protrusion 701 can generate vibration. Through the vibration, the demolding effect of the finished parts can be improved and the waste after cutting can fall quickly; at the same time, discharging is carried out. During discharging, the third hydraulic cylinder 506 is driven to contract. The third hydraulic cylinder 506 drives the second sliding seat 505, the connecting seat 604, the connecting rod 601 and the discharging plate 602 to move rightward. At this time, the discharging action can be completed under the action of the discharging plate 602. Under the action of the vibration, the finished parts and the waste fall downward to the collecting plate 103, and then slide forward. When sliding, the fertilizers are screened out through an external screening part for recycling.

Claims

1. An injection mold with a plastic recycling function, characterized in that, Including: A mold frame body (1); a mold female seat (2) is fixed on the mold frame body (1), a mold male seat (3) slides on the mold frame body (1), a first hydraulic cylinder (4) is fixed on the mold frame body (1), and the extending end of the first hydraulic cylinder (4) is fixed on the mold male seat (3). When the first hydraulic cylinder (4) extends, the mold male seat (3) merges with the mold female seat (2); an annular groove is formed on the left end face of the mold male seat (3), and an annular first truncation seat (501) is clamped in the annular groove. The size of the first truncation seat (501) matches that of the annular groove. A first sliding seat (502) is welded on the right end face of the first truncation seat (501), and the first sliding seat (502) slides on the mold male seat (3). A second hydraulic cylinder (503) is fixed on the right end face of the mold male seat (3), and the extending end of the second hydraulic cylinder (503) is fixed on the first sliding seat (502).

2. The injection mold with plastic recycling function according to claim 1, characterized in that, A second truncation seat (504) slides in the mold female seat (2). The second truncation seat (504) can slide left and right in the mold female seat (2). The second truncation seat (504) has the same size as the first truncation seat (501). A second sliding seat (505) is welded on the left end face of the second truncation seat (504). The second sliding seat (505) passes through the mold female seat (2) and the mold frame body (1). A third hydraulic cylinder (506) is welded on the left end face of the mold frame body (1), and the extending end of the third hydraulic cylinder (506) is fixed on the second sliding seat (505).

3. The injection mold with plastic recycling function according to claim 2, characterized in that, The first truncation seat (501), the first sliding seat (502), the second hydraulic cylinder (503), the second truncation seat (504), the second sliding seat (505) and the third hydraulic cylinder (506) together form a truncation assembly (5); a discharging assembly (6) is installed on the mold frame body (1). The discharging assembly (6) is composed of a connecting rod (601), a discharging plate (602), a guiding rod (603), a connecting seat (604) and a spiral spring (605). A connecting rod (601) slides on the mold frame body (1), the connecting rod (601) passes through the mold female seat (2), and a discharging plate (602) is welded on the right end of the connecting rod (601). The discharging plate (602) is located in the mold groove of the mold female seat (2).

4. The injection mold with plastic recycling function according to claim 3, characterized in that: A flange is welded on the left end face of the connecting rod (601), and two stepped shaft-shaped guiding rods (603) slide on the flange. The left ends of the two guiding rods (603) are welded on the connecting seat (604), and the left end of the connecting seat (604) is welded on the second sliding seat (505). A spiral spring (605) is sleeved on each guiding rod (603). When the two spiral springs (605) elastically extend, the connecting seat (604) is in close contact with the flange on the guiding rod (603).

5. The injection mold with a plastic recycling function according to claim 4, characterized in that, A vibration assembly (7) is installed on the mold base (2). The vibration assembly (7) is composed of a protrusion (701), a mounting arm (702), and a contact rod (703). The protrusions (701) are welded to the top surface of the mold base (2) in a rectangular array. The protrusions (701) are semi-cylindrical structures.

6. The injection mold with plastic recycling function according to claim 5, characterized in that, Two mounting arms (702) are fixed to the top surface of the mold male seat (3). The two mounting arms (702) are both L-shaped structures. A contact rod (703) is welded to the bottom end surface of each mounting arm (702). The lower ends of the two contact rods (703) are in contact with the top surface of the mold base (2). The two contact rods (703) are aligned with the protrusions (701). When the mold male seat (3) moves to the right, the two contact rods (703) are in a continuous elastic clamping state with the protrusions (701).

7. The injection mold with plastic recycling function according to claim 6, characterized in that, The two contact rods (703) are both cylindrical rod-shaped structures. The lower end of each contact rod (703) is polished. After polishing, the lower ends of the two contact rods (703) are arc-shaped structures.

8. An injection mold with a plastic recycling function according to claim 7, characterized in that, The mold frame (1) is fixed to the workbench by four fixing screws (101). Two auxiliary grooves (102) are formed in the mold frame (1). The two auxiliary grooves (102) are both rectangular groove-shaped structures. The two left fixing screws (101) are hidden in the left auxiliary groove (102), and the two right fixing screws (101) are hidden in the right auxiliary groove (102).

9. The injection mold with plastic recycling function according to claim 8, characterized in that, A collecting plate (103) is welded inside the mold frame (1). The collecting plate (103) is a rectangular plate-shaped structure. The collecting plate (103) is located below the mold base (2) and the mold male seat (3). The collecting plate (103) is welded in an inclined shape.

Images