Injection mold with anti-collision mechanism

Abstract

The utility model relates to the technical field of injection molds, in particular to an injection mold with an anti-collision mechanism, which is characterized in that a top mold matched with a bottom mold is arranged at the bottom end of a lifting rod, a buffer frame is arranged below the top mold, a plurality of cavities are arranged at the lower end of the top mold, a plurality of support rods inserted into the cavities are arranged at the upper end of the buffer frame, and the bottom end of the lifting rod is provided with an anti-collision mechanism. A cavity is formed in the top end of the top die, a spring is arranged in the cavity, the supporting rod is inserted into the cavity and connected with the bottom end of the spring, an empty groove is formed in the top end of the cavity, and a pressure sensor is arranged in the empty groove. And the motor can also control the bent rod to clamp and lock the lifting rod when abnormity is detected, double guarantees are provided, the service life of the die is effectively prolonged, and the production cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to injection mold technical field, concretely is injection mold with anti -collision mechanism. BACKGROUND

[0002] Injection mold as indispensable important tool in modern manufacturing industry, is widely used in many fields such as automobile, electronic, household appliance, medical instrument. Through injection mold, can process various plastic raw materials into the plastic product with specific shape and size, greatly improves production efficiency and product quality, meets the diversified demand of different industries to plastic product;

[0003] When the upper die of the mold is in the process of descending, if there is foreign matter between the lower die and the upper die, the upper die and the object will collide, which can easily cause damage to the mold and shorten the service life of the mold. UTILITY MODEL CONTENT

[0004] (I) technical problem solved

[0005] In view of the deficiency of prior art, the utility model provides injection mold with anti -collision mechanism.

[0006] (II) technical scheme

[0007] In order to realize the above object, the utility model provides the following technical scheme: injection mold with anti -collision mechanism, including processing platform, the upper end of processing platform is equipped with bottom die, the upper side of bottom die is fixedly arranged lifting assembly, the output of lifting assembly is equipped with lifting rod, the bottom of lifting rod is equipped with top die matched with bottom die, the lower side of top die is equipped with buffer frame, the lower end of top die is equipped with a plurality of cavities, the upper end of buffer frame is equipped with a plurality of support rods inserted into the inside of cavity, the inside of cavity is equipped with spring, the bottom end of support rod inserted into the inside of cavity is connected with spring, the top of cavity is equipped with empty slot, the inside of empty slot is equipped with pressure sensor, the upper end of support rod is equipped with pressure rod inserted into the inside of empty slot through spring;

[0008] The side of lifting assembly is equipped with base, the bottom of base is equipped with limit seat, the limit seat is penetrated by lifting rod, and two bending rods are symmetrically arranged on the two sides of limit seat, one end of bending rod is inserted into the inside of limit seat, the other end of bending rod is equipped with moving block, the inside of limit seat is rotatably arranged pivot, the pivot is fixedly arranged driven sector on it, the rear side of limit seat is equipped with motor, the output of motor is equipped with driving sector engaged with driven sector, the two ends of pivot are symmetrically arranged two screw rods penetrating moving block, and the two screw rods are reverse screw thread structure, the pressure sensor, motor and lifting assembly are respectively connected through electric signal.

[0009] In order to improve the stability of the top die when lifting, the utility model discloses, the improvement has, the both sides symmetry of top die set up multiple side blocks, the upper end of processing platform symmetry bottom die set up multiple vertical rods of the through side block, and the side block with vertical rod sliding fit.

[0010] Further, the utility model discloses, the improvement has, the motor adopts servo motor, and the lifting assembly adopts cylinder.

[0011] Further, the utility model discloses, the improvement has, multiple the cavity is located at the four corners of top die respectively, and multiple the support rod is installed at the four corners of buffer frame respectively.

[0012] Further, the utility model discloses, the improvement has, the moving block and the bent pole are integral type structure.

[0013] (Three) beneficial effects

[0014] Compared with the prior art, the utility model provides an injection mold of anti -collision mechanism has the following beneficial effects:

[0015] Multiple anti -collision protection: not only has buffer frame and pressure sensor cooperation and prevents top die from colliding with foreign matter directly, and the motor can control bent pole clamping lock dead lifting rod when detecting the exception, provides double protection, effectively prolongs the service life of mold, and reduces production cost.

[0016] Improve stability: the side block of top die both sides and vertical rod sliding fit, ensure the stability of top die in the process of lifting, guarantee injection precision, improve product quality. DRAWINGS

[0017] Figure 1 It is the first perspective three-dimensional structure schematic diagram of the utility model;

[0018] Figure 2 It is the second perspective three-dimensional structure schematic diagram of the utility model;

[0019] Figure 3 It is the third perspective three-dimensional structure schematic diagram of the utility model;

[0020] Figure 4 It is the installation structure schematic diagram of pressure sensor in the utility model;

[0021] Figure 5 It is the utility model Figure 2 The partial close -up structure schematic diagram of A place in;

[0022] Figure 6 It is the cooperation structure schematic diagram of driving bevel gear and driven bevel gear in the utility model;

[0023] In the figure: 1, processing platform; 2, top die; 3, bottom die; 4, lifting assembly; 5, side block; 6, vertical rod; 7, buffer frame; 8, cavity; 9, support rod; 10, lifting rod; 11, empty slot; 12, spring; 13, pressure rod; 14, pressure sensor; 15, motor; 16, driving bevel gear; 17, rotating shaft; 18, driven bevel gear; 19, screw rod; 20, bent rod; 21, limit seat. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0025] Please refer to Figures 1-6 The injection mold with anti-collision mechanism comprises a processing platform 1, the upper end of the processing platform 1 is provided with a bottom die 3, the upper side of the bottom die 3 is fixedly provided with a lifting assembly 4, the output end of the lifting assembly 4 is provided with a lifting rod 10, the bottom end of the lifting rod 10 is provided with a top die 2 matched with the bottom die 3, the lower side of the top die 2 is provided with a buffer frame 7, the lower end of the top die 2 is provided with a plurality of cavities 8, the upper end of the buffer frame 7 is provided with a plurality of support rods 9 inserted into the cavities 8, the inside of the cavity 8 is provided with a spring 12, the bottom end of the support rod 9 inserted into the inside of the cavity 8 is connected with the spring 12, the top end of the cavity 8 is provided with an empty slot 11, the inside of the empty slot 11 is provided with a pressure sensor 14, the upper end of the support rod 9 is provided with a pressure rod 13 penetrating through the spring 12 and inserted into the inside of the empty slot 11.

[0026] One side of the lifting assembly 4 is provided with a base, the bottom end of the base is provided with a limit seat 21, the limit seat 21 is penetrated through by the lifting rod 10, and two bent rods 20 are symmetrically arranged on the two sides of the limit seat 21, one end of the bent rod 20 is inserted into the inside of the limit seat 21, the other end of the bent rod 20 is provided with a moving block, a rotating shaft 17 is rotatably arranged in the inside of the limit seat 21, a driven bevel gear 18 is fixedly arranged on the rotating shaft 17, the rear side of the limit seat 21 is provided with a motor 15, the output end of the motor 15 is provided with a driving bevel gear 16 engaged with the driven bevel gear 18, two screw rods 19 penetrating through the moving block are symmetrically arranged on the two ends of the rotating shaft 17, and the two screw rods 19 are reverse screw structures, and the pressure sensor 14, the motor 15 and the lifting assembly 4 are respectively connected through electric signals.

[0027] In the embodiment, a plurality of cavities 8 are respectively located at the four corners of the top die 2, and a plurality of support rods 9 are respectively installed at the four corners of the buffer frame 7.

[0028] In the embodiment, the moving block is integrated with the bent rod 20.

[0029] Anti-collision principle: when the top die 2 is descending, if it encounters foreign matter, the buffer frame 7 first contacts the foreign matter, the supporting rod 9 compresses the spring 12, the pressing rod 13 extrudes the pressure sensor 14, the pressure sensor 14 converts the pressure change into an electrical signal, which is transmitted to the motor 15 and the lifting assembly 4 respectively, and the lifting assembly 4 stops the top die 2 from descending immediately after receiving the signal; the motor 15 drives the umbrella gear 16 to rotate the driven umbrella gear 18, so that the rotating shaft 17 rotates, and the moving block integrated with the bent rod 20 moves towards the other, so that the two bent rods 20 clamp and lock the lifting rod 10, further preventing the top die 2 from continuing to descend due to inertia or other reasons, and avoiding damage to the mold caused by collision.

[0030] 1) Start-up preparation: turn on the power of the equipment, check the pressure sensor 14, servo motor, lifting assembly 4 (cylinder) and other components comprehensively, and ensure that the equipment is in normal working condition.

[0031] 2) Place raw materials: carefully place the plastic raw materials to be injection molded in the bottom die 3 on the processing table 1.

[0032] 3) Start clamping: start the lifting assembly 4 (cylinder), the cylinder pushes the lifting rod 10, driving the top die 2 to move downward, and the buffer frame 7 first contacts the bottom die 3 or possible foreign matter during the descent of the top die 2.

[0033] 4) Abnormality detection and processing: if there is no foreign matter, the top die 2 continues to descend until it is clamped with the bottom die 3, and the injection molding operation begins, at which time the value on the pressure sensor 14 is a normal value; if foreign matter is detected, the buffer frame 7 is pressed, and the pressure sensor 14 sends a signal to the motor 15 and the lifting assembly 4, which immediately stops the top die 2 from descending, and at the same time the motor 15 drives the bent rod 20 to clamp and lock the lifting rod 10, after the operator removes the foreign matter, the clamping of the lifting rod 10 by the bent rod 20 is released, and the equipment is started again for clamping operation.

[0034] Not only does the buffer frame 7 and the pressure sensor 14 cooperate to prevent the top die 2 from directly colliding with foreign matter, but the motor 15 also controls the bent rod 20 to clamp and lock the lifting rod 10 when an abnormality is detected, providing double protection, effectively extending the service life of the mold, and reducing production costs.

[0035] In the embodiment, a plurality of side blocks 5 are symmetrically arranged on both sides of the top die 2, a plurality of vertical rods 6 that penetrate the side blocks 5 are symmetrically arranged on the upper end of the processing table 1, and the side blocks 5 and the vertical rods 6 are in sliding cooperation;

[0036] The side blocks 5 on both sides of the top die 2 are in sliding fit with the vertical rods 6, which ensures the stability of the top die 2 during lifting, guarantees the injection precision, and improves the product quality.

[0037] In the embodiment, the motor 15 is a servo motor, and the lifting assembly 4 is a pneumatic cylinder.

[0038] The servo motor can accurately control the rotating speed and angle, precisely adjusts the position of the moving block, and meets the diversified requirements of complex injection molding processes.

[0039] The overall structure is simple in design, and the components work in cooperation, which is convenient for the maintenance and operation of the equipment, reduces the work difficulty of the operators, and improves the production efficiency.

[0040] In the description in the present document, it should be noted that the relational terms such as first and second are used only to differentiate one entity or operation from another entity or operation, and do not necessarily require or imply that there is any such actual relationship or order between these entities or operations. Moreover, the terms "comprise", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such a process, method, article or equipment.

[0041] Although the embodiments of the present application have been shown and described, it should be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application.

Claims

1. An injection mold with an anti-collision mechanism, comprising a processing table (1), wherein a bottom mold (3) is provided at the upper end of the processing table (1), a lifting assembly (4) is fixedly provided above the bottom mold (3), a lifting rod (10) is provided at the output end of the lifting assembly (4), and a top mold (2) that cooperates with the bottom mold (3) is provided at the bottom end of the lifting rod (10), characterized in that: The bottom of the top die (2) is provided with a buffer frame (7), the lower end of the top die (2) is provided with a plurality of cavities (8), the upper end of the buffer frame (7) is provided with a plurality of support rods (9) inserted into the cavities (8), the inside of the cavity (8) is provided with a spring (12), the support rod (9) is inserted into the inside of the cavity (8) and connected to the bottom end of the spring (12), the top end of the cavity (8) is provided with a hollow slot (11), the inside of the hollow slot (11) is provided with a pressure sensor (14), the upper end of the support rod (9) is provided with a pressure rod (13) penetrating the spring (12) and inserted into the hollow slot (11); One side of the lifting assembly (4) is provided with a base, the bottom end of the base is provided with a limiting seat (21), the limiting seat (21) is penetrated by a lifting rod (10), and two bending rods (20) are symmetrically arranged on both sides of the limiting seat (21), one end of the bending rod (20) is inserted into the inside of the limiting seat (21), the other end of the bending rod (20) is provided with a moving block, a rotating shaft (17) is rotatably arranged in the inside of the limiting seat (21), a driven sector (18) is fixedly arranged on the rotating shaft (17), the rear side of the limiting seat (21) is provided with a motor (15), the output end of the motor (15) is provided with a driving sector (16) engaged with the driven sector (18), two screw rods (19) penetrating the moving block are symmetrically arranged at both ends of the rotating shaft (17), and the two screw rods (19) are reverse threaded structures, and the pressure sensor (14), the motor (15) and the lifting assembly (4) are respectively connected through electrical signals.

2. The injection mold with anti-collision mechanism according to claim 1, characterized in that: A plurality of side blocks (5) are symmetrically arranged on both sides of the top die (2), a plurality of vertical rods (6) penetrating the side blocks (5) are arranged on the upper end of the processing table (1) and symmetrically arranged on the bottom die (3), and the side blocks (5) and the vertical rods (6) are in sliding fit.

3. The injection mold with anti-collision mechanism according to claim 2, characterized in that: The motor (15) is a servo motor.

4. The injection mold with anti-collision mechanism according to claim 3, characterized in that: A plurality of cavities (8) are respectively located at four corners of the top die (2), and a plurality of support rods (9) are respectively installed at four corners of the buffer frame (7).

5. The injection mold with anti-collision mechanism according to claim 4, characterized in that: The lifting assembly (4) is a gas cylinder.

6. The injection mold with anti-collision mechanism according to claim 5, characterized in that: The moving block and the bending rod (20) are of an integral structure.

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