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CN-122016361-A - Injection molding table and chair strength testing machine

CN122016361ACN 122016361 ACN122016361 ACN 122016361ACN-122016361-A

Abstract

The invention discloses an injection molding table and chair strength testing machine, and relates to the technical field of injection molding part detection equipment. The invention comprises a support frame, wherein the bottom of the support frame is fixedly connected with a base, a detection table is arranged at the top of the base, a first hydraulic cylinder and a second hydraulic cylinder are arranged at the top of the detection table, and a detection assembly is arranged at the top of the detection table. According to the invention, the detection assembly, the adjusting assembly and the traction assembly are arranged, the moving disc and the pressing block are driven by the first hydraulic cylinder and the second hydraulic cylinder to respectively press the seat surface, the chair back and the chair legs of the injection molding table and chair, the pressed values are fed back in real time by matching with the pressure sensor, so that the accurate strength detection of different parts is realized, the pressing angle of the pressing block can be flexibly adjusted by matching the adjusting assembly with the rotating shaft, the rotating frame and the third hydraulic cylinder, the traction assembly drives the first toothed plate and the first gear by the fourth hydraulic cylinder, the clamping plate relatively rotates to clamp the seat surface, the tensile strength detection is carried out by matching with the retraction of the second hydraulic cylinder, and the accuracy of detection data is improved.

Inventors

  • JIANG XIULONG
  • Hong Shanjie

Assignees

  • 临沂金熙塑料制品有限公司

Dates

Publication Date
20260512
Application Date
20260305

Claims (10)

  1. 1. The strength testing machine for the injection molding table and chair comprises a supporting frame (1) and is characterized in that a base (2) is fixedly connected to the bottom of the supporting frame (1), a detection table (3) is arranged at the top of the base (2), and a first hydraulic cylinder (4) and a second hydraulic cylinder (5) are arranged at the top of the detection table (3); the top of the detection table (3) is provided with a detection assembly (6), the detection assembly (6) comprises a movable disc (601) arranged at the output ends of a first hydraulic cylinder (4) and a second hydraulic cylinder (5), a fixed shell (602) which is connected to the surface of the movable disc (601) in a sliding manner, a pressing block (603) arranged at one side of the fixed shell (602), and pressure sensors (604) arranged at two sides of the movable disc (601), wherein the compression strength of the injection chair is detected through the detection assembly (6); The detection bench is characterized in that an adjusting component (7) is arranged at the top of the detection bench (3), the adjusting component (7) comprises a rotating shaft (701) movably connected to the inside of the supporting frame (1), a rotating frame (702) arranged on the surface of the rotating shaft (701), a third hydraulic cylinder (703) movably connected to the bottom of the rotating frame (702), a driving shell (704) arranged on one side of the rotating frame (702), a driving motor (705) arranged in the driving shell (704), a driving rod (706) arranged at the output end of the driving motor (705), and a moving block (707) in threaded connection with the surface of the driving rod (706), wherein the multi-angle detection is carried out on the injection molding chair through the adjusting component (7); The utility model discloses a chair, including briquetting (603), inside traction assembly (8), traction assembly (8) including installing in inside fourth pneumatic cylinder (801) of briquetting (603), install in first pinion rack (802) of fourth pneumatic cylinder (801) output, mesh in first pinion rack (803) top and bottom, install connecting axle (804) in first pinion (803) axle center department, install splint (805) on connecting axle (804) surface, carry out tensile strength detection to the chair of moulding plastics through traction assembly (8).
  2. 2. The injection molding table and chair strength testing machine according to claim 1, wherein the driving assembly (9) is arranged at the top of the detection table (3), the driving assembly (9) comprises a servo motor (901) arranged at the top of the support frame (1), a second gear (902) arranged at the output end of the servo motor (901), and a third gear (903) arranged on the surface of the rotating shaft (701).
  3. 3. The injection molding table and chair strength testing machine according to claim 2, wherein one side of the second gear (902) is meshed with the third gear (903), and the surface of the rotating shaft (701) is movably connected with the inner wall of the supporting frame (1) through a first bearing.
  4. 4. The injection molding table and chair strength testing machine according to claim 1, wherein the top of the first hydraulic cylinder (4) is movably connected with the rotating frame (702), the output end of the third hydraulic cylinder (703) is movably connected with the first hydraulic cylinder (4) through a movable seat, and one side of the movable block (707) penetrates through the driving shell (704) and is fixedly connected with the second hydraulic cylinder (5).
  5. 5. The injection molding table and chair strength testing machine according to claim 1, wherein an anti-slip groove is formed in one side of the clamping plate (805), and the surface of the connecting shaft (804) is movably connected with the inner wall of the pressing block (603) through a second bearing.
  6. 6. The machine for testing the strength of an injection molding table and chair according to claim 1, wherein the adjusting assembly (7) further comprises a heater (708) arranged inside the supporting frame (1), and a temperature sensor (709) arranged on the top of the base (2).
  7. 7. The injection molding table and chair strength testing machine according to claim 1, wherein the top of the detection table (3) is provided with a circular groove (10), a guide block (11) is connected inside the circular groove (10) in a sliding mode, and one side of the guide block (11) is fixedly connected with the driving shell (704).
  8. 8. The injection molding table and chair strength testing machine according to claim 1, wherein the top of the detection table (3) is fixedly connected with a positioning seat (12), two groups of connecting shafts (13) are movably connected inside the positioning seat (12), a fourth gear (14) is mounted on the surface of the connecting shafts (13), two sides of the fourth gear (14) are meshed with second toothed plates (15), one side, opposite to the two groups of second toothed plates (15), of each of the two groups of second toothed plates (15) is fixedly connected with a connecting plate (16), the other side of the connecting plate (16) is fixedly connected with a movable rod (17), and the other end of the movable rod (17) penetrates through the positioning seat (12) and is fixedly connected with a pressing plate (18).
  9. 9. The injection molding table and chair strength testing machine according to claim 8, wherein a fifth hydraulic cylinder (19) is fixedly connected inside the positioning seat (12), and the output end of the fifth hydraulic cylinder (19) is fixedly connected with the connecting plate (16).
  10. 10. The machine for testing the strength of an injection molding table and chair according to claim 8, wherein the positioning seat (12) is provided with positioning grooves (20) on two sides for limiting four legs of the injection molding chair.

Description

Injection molding table and chair strength testing machine Technical Field The invention belongs to the technical field of injection molding piece detection equipment, and particularly relates to an injection molding table and chair strength testing machine. Background An injection molded article is a plastic article produced by an injection molding process. The process is to inject molten plastic material into a mold cavity under high pressure, and obtain a part with a required shape after cooling and solidification. The injection molding part has the characteristics of high precision, high production efficiency, good surface finish and the like, and can realize batch production of complex structures. Common injection molding materials include ABS, PP, PC, nylon, and other thermoplastics. The product is widely applied to the fields of daily life and industry, such as electronic equipment shells, automobile parts, medical equipment, household appliance accessories and the like, and the strength test of the injection molding part is a series of tests for evaluating the mechanical properties of the plastic product by a standardized method, so as to verify whether the design and use requirements are met. The patent in China who authorizes bulletin number CN214844443U discloses an injection molding strength testing machine, which comprises an equipment body, the both sides fixedly connected with electric putter of equipment body inner wall, one side fixedly connected with connecting rod of electric putter, one side fixedly connected with slide rail of connecting rod, one side fixedly connected with slider of slide rail, the spout has been seted up at the top of equipment body inner chamber lateral wall, the both ends of slide rail are through slider sliding connection in the inside of spout. The above device still has the following problems in the implementation: in the injection molding detection process, the extrusion block is driven by the extrusion rod to prop against the injection molding for intensity detection, and partial pressure is absorbed by the fixing plate due to the fact that the bottom of the injection molding is completely attached to the fixing plate during detection, so that the load actually acted on the injection molding is reduced. The method not only reduces the accuracy of detection, but also makes the deformation characteristics of the injection molding piece under stress at different angles difficult to truly reflect, and the fixing mode limits the simulation test of multi-angle pressure change, so that the mechanical properties of the injection molding piece under actual working conditions cannot be comprehensively estimated. Therefore, we provide an injection molding table and chair strength testing machine for solving the problems. Disclosure of Invention The invention aims to provide an injection molding table and chair strength testing machine, which solves the problems that in the prior art, an injection molding piece detection device is matched with a structure of a detection assembly, an adjusting assembly and a traction assembly, an extrusion rod drives an extrusion block to abut against an injection molding piece to carry out strength detection, but when the injection molding piece is extruded, the bottom of the injection molding piece is attached to a fixing plate, a large amount of pressure is not acted on the injection molding piece, the pressure change of the injection molding piece received at different angles cannot be tested, and the testing is limited. In order to solve the technical problems, the invention is realized by the following technical scheme. The invention discloses an injection molding table and chair strength testing machine, which comprises a supporting frame, wherein the bottom of the supporting frame is fixedly connected with a base, the top of the base is provided with a detection table, the top of the detection table is provided with a first hydraulic cylinder and a second hydraulic cylinder, the top of the detection table is provided with a detection assembly, the detection assembly comprises a movable disc arranged at the output ends of the first hydraulic cylinder and the second hydraulic cylinder, a fixed shell connected to the surface of the movable disc in a sliding manner, a pressing block arranged at one side of the fixed shell, pressure sensors arranged at two sides of the movable disc and used for detecting the compression strength of an injection molding chair through the detection assembly, the top of the detection table is provided with an adjusting assembly, the adjusting assembly comprises a rotating shaft movably connected to the inside of the supporting frame, a rotating frame arranged on the surface of the rotating shaft, a third hydraulic cylinder movably connected to the bottom of the rotating frame, a driving shell arranged at one side of the rotating frame, a driving motor arranged inside the driving shell, a driving rod arrange