Search

CN-121977935-A - Injection mold pressure testing device

CN121977935ACN 121977935 ACN121977935 ACN 121977935ACN-121977935-A

Abstract

The invention relates to the field of injection mold pressure test and discloses an injection mold pressure test device, which comprises a base, a test bearing seat is slidably arranged on a guide rod, a pressing piece is arranged at the top end of the guide rod, a mold fixing mechanism is arranged on the test bearing seat, an abutting mechanism is arranged on the base, a follow-up pressing mechanism is arranged on the pressing piece, a transmission mechanism is correspondingly arranged between the follow-up pressing mechanism and the mold fixing mechanism, the follow-up pressing mechanism can be driven to carry out size adjustment through the transmission mechanism when the mold fixing mechanism is adjusted to expand size.

Inventors

  • ZHOU MIN
  • LI ZONGXU
  • YAN SHAOHUANG

Assignees

  • 东莞市大展精密模具有限公司

Dates

Publication Date
20260505
Application Date
20260326

Claims (8)

  1. 1. The utility model provides an injection mold pressure testing arrangement, includes base (1), sets up guide arm (2) on base (1), and slide on guide arm (2) and set up test bearing seat (3), guide arm (2) top is equipped with pressure applying piece (5), its characterized in that: The test bearing seat (3) is provided with a die fixing mechanism (4) which bears an injection die and can be unfolded through the size adjustment of the injection die, the base (1) is provided with a butt joint mechanism (7) which can butt against the bottom of the injection die, the pressing piece (5) is provided with a follow-up pressing mechanism (6) which can press the four corners of the injection die, a transmission mechanism (8) is correspondingly arranged between the follow-up pressing mechanism (6) and the die fixing mechanism (4), and the size adjustment can be carried out through the transmission mechanism (8) to drive the follow-up pressing mechanism (6) when the size of the die fixing mechanism (4) is unfolded.
  2. 2. The injection mold pressure testing device according to claim 1, wherein: The die fixing mechanism (4) comprises a fixed support (401) fixedly connected to the test bearing seat (3), two sides of the fixed support (401) are correspondingly provided with a movable support (402), a bidirectional screw rod (403) which is in threaded connection with the movable support (402) and is driven by a motor is rotatably connected to the fixed support (401), the end part of the bidirectional screw rod (403) is provided with a bevel gear (404) which can drive a transmission mechanism (8), the fixed support (401) and the movable supports (402) on two sides are respectively provided with a fixed support (405), two sides of the fixed support (405) are respectively provided with a movable support (406) which is in sliding connection with the fixed support (401) and the movable support (402), and an adjusting mechanism (I) which can simultaneously adjust the extension of the movable supports (406) is arranged on the fixed support (405).
  3. 3. The injection mold pressure testing device according to claim 2, wherein: The first adjusting mechanism comprises a two-way screw rod II (407) which is rotationally arranged on the first fixed support seat (405) and is in threaded connection with the first movable support seat (406), a worm wheel I (410) which is positioned in the first fixed support seat (405) is fixedly connected to the two-way screw rod II (407), a transmission rod I (408) which is driven by a motor is jointly connected to the first fixed support seat (405) in a sleeved mode, a bevel gear II (411) which can drive the other transmission mechanism (8) is arranged at the end portion of the transmission rod I (408), and a worm I (409) which is positioned in the first fixed support seat (405) and is in meshed connection with the worm wheel I (410) is arranged on the transmission rod I (408) in a sliding mode.
  4. 4. The injection mold pressure testing apparatus according to claim 3, wherein: The pressing piece (5) comprises a top plate (501) positioned at the top end of the guide rod (2), a hydraulic telescopic rod (502) driven by a hydraulic system is arranged on the top plate (501), a test pressing seat (503) which is slidably connected with the guide rod (2) is arranged at the bottom of the telescopic end of the hydraulic telescopic rod (502), the follow-up pressing mechanism (6) is positioned on the test pressing seat (503), and the die fixing mechanism (4) drives the follow-up pressing mechanism (6) through two transmission mechanisms (8).
  5. 5. The injection mold pressure testing device according to claim 4, wherein: The test pressing seat (503) is provided with a slot (504) corresponding to the position of the movable support (402), the follow-up pressing mechanism (6) comprises a movable support (601) which is arranged in the slot (504) in a sliding manner and has the same moving direction as the movable support (402), the movable support (601) is provided with a fixed support (602), the test pressing seat (503) is rotationally provided with a bidirectional screw rod (603) with two ends in threaded connection with the fixed support (602), the end part of the bidirectional screw rod (603) is provided with a bevel gear (604) driven by a transmission mechanism (8), two sides of the fixed support (602) are provided with electric telescopic rods (606) which slide on the movable support (601), and the fixed support (602) is provided with an adjusting structure (II) capable of adjusting the stretching of the electric telescopic rods (606).
  6. 6. The injection mold pressure testing apparatus according to claim 5, wherein: The second adjusting structure comprises a transmission rod II (610) which is rotationally arranged on the test pressing seat (503) and is spliced with the fixed support seat II (602), a worm II (612) which is positioned in the fixed support seat II (602) is slidingly arranged on the transmission rod II (610), a top block (607) is arranged on the electric telescopic rod (606), a bidirectional screw rod IV (608) which is rotationally spliced with the top block (607) at the end part is in threaded splicing with the fixed support seat II (602), a worm wheel II (609) which is positioned in the fixed support seat II (602) and is in meshed connection with the worm II (612) is fixedly connected on the bidirectional screw rod IV (608), and a bevel gear IV (611) driven by another transmission mechanism (8) is arranged at the end part of the transmission rod II (610).
  7. 7. The injection mold pressure testing apparatus according to claim 6, wherein: The transmission mechanism (8) comprises a transmission rod III (802) which is rotationally arranged on the test bearing seat (3), a bevel gear V (801) is arranged at the bottom of the transmission rod III (802), the two bevel gears V (801) are respectively connected with a bevel gear I (404) and a bevel gear II (411) in a meshed manner, a sliding block (803) is sleeved on the transmission rod III (802) in a sliding manner, a bevel gear V (804) is rotationally arranged at the bottom of the sliding block (803), the two bevel gears V (804) are respectively connected with the bevel gear III (604) and the bevel gear IV (611) in a meshed manner, limit holes (605) are formed in the bevel gear III (604) and the bevel gear IV (611), and limit rods (805) which are spliced with the limit holes (605) are formed in the sliding block (803).
  8. 8. The injection mold pressure testing device according to claim 1, wherein: The butt mechanism (7) is including the movable plate (701) that passes base (1), four corners department all is equipped with butt piece (702) on movable plate (701), butt piece (702) top is equipped with montant (703) that vertically pass base (1) downwards, montant (703) overcoat has spring one (704), it has inserted bar (705) to peg graft on movable plate (701), inserted bar (705) top is equipped with drive gear (706) that are located on movable plate (701), drive gear (706) both sides correspond and are equipped with L template (707), be equipped with rack (708) that are connected with drive gear (706) meshing on L template (707), be equipped with picture peg (709) with movable plate (701) side terminal surface grafting on L template (707), one of them L template (707) tip is equipped with the handle, guide arm (2) overcoat has spring two (9) that are located between base (1) and test carrier (3).

Description

Injection mold pressure testing device Technical Field The invention relates to the field of injection mold pressure testing, in particular to an injection mold pressure testing device. Background The injection mold is a core component for injection molding, and generally consists of a movable mold and a fixed mold, a cavity is formed during mold assembly, the movable mold moves to realize demolding during mold opening, and the injection mold is required to bear high pressure, temperature change and local stress concentration during operation, particularly the positions of four corners, edges and the like of the mold, and is easy to crack and deform due to insufficient compressive strength or uneven stress, so that an injection product is directly scrapped. Therefore, the pressure test is a key quality inspection link before die delivery, and accurately detects core parameters such as compressive strength, deformation, stress distribution and the like of the die. Most of the injection mold pressure testing devices in the current industry are of traditional designs of 'integral pressing and fixing clamps', have obvious technical bottlenecks in the aspects of testing authenticity, suitability, precision and efficiency, and are difficult to meet the detection requirements of 'diversification, high precision and mass production' of modern injection molds. The traditional testing device mostly adopts whole even pressurization, such as flat plate type pressurization, is inconsistent with local stress concentration scenes when the die actually works, so that the test data is lack of pertinence, the pressure is mainly concentrated at four corners and the edges of a cavity when the injection die actually works, the traditional whole pressurization cannot restore the characteristic, the tested compressive strength, deformation and actual working condition deviation are greatly increased, and the failure risk of the die in actual use cannot be effectively predicted. And traditional testing arrangement only can detect whole compressive property, can't accurate location stress concentration position, if four corners fracture hidden danger, lead to partial mould to lead to early failure after leaving the factory because of local intensity is not enough, increase customer complaint and rework cost. Disclosure of Invention The invention aims to solve the technical problem of overcoming the difficulty and providing a pressure testing device for an injection mold. In order to solve the technical problems, the technical scheme provided by the invention is as follows: The utility model provides an injection mold pressure testing arrangement, the on-line screen storage device comprises a base, set up the guide arm on the base, the guide arm is gone up to slide and is set up the test and bear the weight of the seat, the guide arm top is equipped with the pressure piece, be equipped with on the test and bear the weight of the injection mold and can pass through the fixed establishment of mould size adjustment of mould and expand the mould of size, be equipped with the butt mechanism that can support the injection mold bottom on the base, be equipped with the follow-up mechanism that exerts pressure to injection mold four corners position department on the pressure piece, correspond between follow-up mechanism and the fixed establishment of mould and be equipped with drive mechanism, can carry out size adjustment through drive mechanism drive follow-up mechanism when adjusting the fixed establishment of mould and expand the size. As an improvement, the die fixing mechanism comprises a fixed support fixedly connected to the test bearing seat, two sides of the fixed support are correspondingly provided with a movable support, a bidirectional screw rod I which is in threaded connection with the movable support and driven by a motor is rotatably connected to the fixed support, one end part of the bidirectional screw rod is provided with a bevel gear I which can drive a transmission mechanism, fixed supports are arranged on the fixed support and the movable supports on two sides, two sides of the fixed supports are respectively provided with a movable support connected with the fixed support and the movable support in a sliding manner, and an adjusting mechanism I which can simultaneously adjust the extension of the movable supports is arranged on the fixed supports. As an improvement, the first regulating mechanism comprises a two-way screw rod II which is rotationally arranged on the first fixed support seat and is in threaded connection with the first movable support seat, a worm wheel I which is positioned in the first fixed support seat is fixedly connected on the two-way screw rod II, a first transmission rod driven by a motor is jointly connected on the first fixed support seats in an inserted manner, a bevel gear II which can drive the other transmission mechanism is arranged at one end part of the transmission rod, and a worm