Injection mold pressure testing device

Abstract

The invention discloses an injection mold pressure testing device, and relates to the technical field of mold pressure detection, the injection mold pressure testing device comprises a base, the top of the base is fixedly provided with a workbench, the top of the workbench is fixedly provided with a fixing frame, and the top of the fixing frame is fixedly provided with a hydraulic push rod; meanwhile, the movable end of the hydraulic push rod penetrates through the fixing frame and is fixedly provided with a movable plate, guide rods are symmetrically installed on the two sides of the top of the movable plate, the two guide rods are both in sliding connection with the fixing frame, and the device further comprises two sets of pressure sensors fixedly installed at the bottom of the movable plate; according to the invention, when a larger mold is tested, the contact area with the mold can be enlarged, the uneven pressure caused by the contact area is avoided, the accuracy of injection mold testing is prevented from being influenced, the blowing molds with different sizes can be used, the applicability is improved, and when the pressure of the larger mold is tested, the situation that the pressure intensity is too large and the testing accuracy is influenced can be avoided. And unnecessary damage and abrasion of the mold are avoided.

Description

Technical Field

[0001] The invention relates to the technical field of mold pressure detection, in particular to an injection mold pressure testing device. Background Art

[0002] Injection molds can form multiple plastic parts with complex structures, precise dimensions and good internal quality at one time, so they are widely used in the production of plastic products. The injection mold process is to inject the heated and melted material into the mold cavity under high pressure, and after cooling and solidification, the molded product is obtained. The injection mold needs to be pressure tested after production.

[0003] For example, in a pressure testing device for an injection mold of an automobile part with announcement number CN218157284U, when limiting the position of the universal wheel, the cylinder drives the support plate to move downward and contact the ground, so that the universal wheel will not move at will. When limiting the position of the universal wheel, it only needs to start the cylinder to complete it. The whole operation process is relatively convenient and improves work efficiency. The screw rotates to drive the slider to move outward, and the slider drives the test bench to move outward, so that there is no obstruction above the test bench, which is convenient for the staff to place the automobile parts to be viewed from the side on the side viewing table, and then move the side viewing table to the bottom of the test component through the screw. The side view improves the practicability of the device, but in actual use, the area of ​​the pressure plate on the test component is fixed. When testing a larger blow mold, the contact area between the pressure plate on the test component and the blow mold is smaller. During the test, due to the small contact area, the pressure of the pressure plate on the blow mold is not uniform, and the pressure cannot be evenly applied to the top of the mold, which easily affects the accuracy of the test. When testing a larger mold, the pressure of the pressure release will also be greater. When the pressure plate area is small, the pressure of the pressure plate on the mold is greater, which may cause unnecessary damage and wear to the mold, and there are certain usage defects.

[0004] Therefore, we propose an injection mold pressure testing device to solve the above problems. Summary of the invention

[0005] The purpose of the present invention is to provide an injection mold pressure testing device to solve the problem that the pressure plate area on the test component proposed in the above background technology is fixed. When testing a larger blow mold, the contact area between the pressure plate on the test component and the blow mold is smaller. During the test, due to the small contact area, the pressure of the pressure plate on the blow mold is not uniform, and the pressure cannot be evenly applied to the top of the mold, which easily affects the accuracy of the test. When testing a larger mold, the pressure of the pressure release will also be larger. When the pressure plate area is small, the pressure of the pressure plate on the mold is larger, which may cause unnecessary damage and wear to the mold, and there are certain usage defects.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: an injection mold pressure testing device, comprising a base, a workbench is fixedly installed on the top of the base, a fixed frame is fixedly installed on the top of the workbench, a hydraulic push rod is fixedly installed on the top of the fixed frame, and a movable end of the hydraulic push rod passes through the fixed frame and is fixedly installed with a movable plate, and guide rods are symmetrically installed on both sides of the top of the movable plate, and the two guide rods are slidably connected to the fixed frame; Also includes: There are two groups of pressure sensors fixedly installed on the bottom of the movable plate, and the bottoms of the two groups of pressure sensors are fixedly installed with fixing columns; A testing assembly is arranged below the movable plate, and the testing assembly comprises a pressing plate; A fixed component is arranged inside the workbench; A pressure plate is fixedly installed at the bottom ends of the two groups of fixed columns, a sliding groove is symmetrically opened inside the pressure plate, and a sliding plate is slidably connected inside the sliding groove, and a through groove is opened through one side of the bottom of the two sliding plates, and movable rods are symmetrically slidably connected on both sides of the pressure plate, and fixed blocks are fixedly installed on the upper parts of the two groups of movable rods, and the movable rods are slidably connected to the through grooves; The support frames are symmetrically installed on the top of the pressure plate and are located on one side of the two groups of movable rods. There are two groups of support frames. One side between each group of two support frames is rotatably connected to a roller, and the outside of the roller is rotatably connected to a connecting rope, and the two ends of the connecting rope are respectively fixedly connected to the movable rod and the sliding plate.

[0007] Preferably, an installation groove is opened inside the pressure plate between the two sliding grooves, and a fixing rod is fixedly installed on the side where the two sliding plates are close to each other, and a rack is fixedly installed on the side where the two fixing rods are close to each other, and at the same time, positioning blocks are symmetrically installed inside the installation groove, and the fixing rod is slidingly connected to the positioning block, and a rotating shaft is rotatably connected inside the installation groove, and a rotating gear is fixedly installed outside the rotating shaft, and at the same time, the two racks are meshingly connected with the rotating gear.

[0008] By adopting the above technical solution, the two sliding plates can drive the rotating shaft to rotate after moving.

[0009] Preferably, the top end of the rotating shaft passes through the pressure plate and is fixedly mounted with a rotating wheel, and pull ropes are symmetrically mounted on both sides of the rotating wheel, and tension sensors are provided on both pull ropes.

[0010] By adopting the above technical solution, the pull rope can be pulled to move after the rotating shaft rotates.

[0011] Preferably, two groups of positioning rods are symmetrically installed on both sides of the pressure plate, and the outer side of each group of two positioning rods is slidably connected to a positioning plate, and the outer side of the two positioning rods is sleeved with a telescopic spring, and one end of the telescopic spring is fixedly connected to the positioning plate, and the other end of the telescopic spring is fixedly connected to the positioning rod.

[0012] By adopting the above technical solution, the positioning plate can be automatically reset after moving.

[0013] Preferably, the interior of the positioning plate is symmetrically and slidingly connected with a connecting rod, and a movable plate is fixedly installed at one end of the two connecting rods, and a tension spring is sleeved on one side of the outside of the two connecting rods, and at the same time, one end of the tension spring is fixedly connected to the positioning plate, and a mounting block is fixedly installed at the other end of the tension spring, and the mounting block is fixedly connected to the connecting rod.

[0014] By adopting the above technical solution, the movable plate can be further moved after the positioning plate is fitted with the mold, so as to facilitate the positioning of molds of different sizes.

[0015] Preferably, one end of the two pull ropes away from the rotating wheel is fixedly connected to the two movable plates respectively.

[0016] By adopting the above technical solution, the positioning plate can be pulled to move after the pull rope moves, which is convenient for calibrating and positioning the mold.

[0017] Preferably, the fixing component includes a rectangular groove opened inside the workbench, and a bidirectional screw rod is rotatably connected inside the rectangular groove, and one end of the bidirectional screw rod passes through the workbench and is fixedly installed with a handwheel, and at the same time, a movable seat is symmetrically sleeved on the outside of the bidirectional screw rod, and clamps are symmetrically installed on the top of the two movable seats, and movable grooves are symmetrically opened on the top of the workbench above the rectangular groove, and the clamps are slidably connected to the movable grooves.

[0018] By adopting the above technical solution, the mold can be fixed conveniently during testing, and the mold can be aligned with the center of the pressing plate, which is convenient for testing.

[0019] Preferably, a limiting rod is fixedly mounted on one side of the two groups of clamping plates, and the limiting rod is slidably connected to the fixing frame.

[0020] By adopting the above technical solution, the movement of the splint can be limited, thereby improving the stability of the movement of the splint.

[0021] Compared with the prior art, the beneficial effects of the present invention are as follows: the injection mold pressure testing device is provided with a testing assembly below the movable plate, so that when testing a larger mold, the contact area with the mold can be expanded to avoid uneven pressure caused by the contact area, thereby avoiding affecting the accuracy of the injection mold test, and can be used for blow molds of different sizes, thereby improving the applicability, and when performing pressure testing on a larger mold, excessive pressure can be avoided, thereby avoiding unnecessary damage and wear to the mold; 1. A test assembly is set under the movable plate. When the injection mold is subjected to a pressure test, the mold is placed on the top of the workbench, and the hydraulic push rod is started to descend so that the bottom of the pressure plate contacts the mold. If the mold is small, the movable rod does not contact the mold. If the mold is large, the movable plate drives the pressure plate to descend so that the bottom of the movable rod contacts the mold, and then the pressure plate continues to descend, so that the movable rod slides on the pressure plate and slides in the through groove. After the movable rod moves, the connecting rope can be pulled upward, so that the connecting rope drives the roller to rotate, and then the sliding plate can be pulled by the connecting rope to move, and the sliding plate extends out of the sliding groove, so that when testing a larger mold, the pressure plate can be The bottom of the plate and the two sliding plates are both fitted with the mold, which can expand the range of pressure contact with the mold, so that the pressure is applied more evenly on the mold, avoiding uneven pressure affecting the accuracy of the test. When testing molds of different sizes, there is no need to replace pressure plates of different sizes, avoiding the need to calibrate the values ​​after replacement. Through the test assembly, when testing larger molds, the contact area with the mold can be expanded to avoid uneven pressure caused by the contact area, avoiding affecting the accuracy of the injection mold test, and can be used for blow molds of different sizes, improving applicability, and when performing pressure tests on larger molds, it can avoid excessive pressure and avoid unnecessary damage and wear to the mold; 2. When testing a larger mold, the two sliding plates move away from each other to drive the fixed rod to move. After the fixed rod moves, it can drive the rack to move. After the rack moves, it can drive the rotating shaft to rotate by meshing the rotating gear. The rotation of the rotating shaft can drive the rotating wheel to rotate. The elastic potential energy of the tension spring is greater than the elastic potential energy of the telescopic spring. After the rotating wheel rotates, the moving plate can be pulled by pulling the pull rope to move, and then the positioning plate is pulled to move. The positioning plate moves and fits the front and back sides of the mold, so that the mold can be pushed on the workbench through the positioning plate to move slightly, so that the center of the mold can be in the same straight line with the center of the pressure plate. If the pull rope continues to move, the moving plate can be pulled to move, driving the connecting rod to slide on the positioning plate and stretch the tension spring. The tension of the pull rope can be obtained through the tension sensor, and then the pressure value can be obtained according to the value on the pressure sensor. After the mold is positioned, the mold can be positioned and calibrated to avoid skewness of the mold and avoid affecting the accuracy of the mold pressure test. 3. A fixing component is set inside the workbench. When testing the mold, the front and rear sides of the mold are positioned through the positioning plate. At this time, the hand wheel is turned to drive the bidirectional screw to rotate. After the bidirectional screw rotates, it can drive the two movable seats to approach at the same time, so that the movable seat drives the splint to move, and the splint slides in the moving groove for limiting the position. During the movement of the splint, the limiting rod is driven to slide on the fixed frame to further limit the movement of the splint, thereby improving the stability of the movement of the splint, thereby positioning the left and right sides of the mold, which is convenient for fixing the mold during testing, and can ensure that the mold is aligned with the center of the pressure plate for easy testing. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the structure of the test assembly of the present invention; Figure 3 This is a schematic diagram of the internal structure of the pressing plate of the present invention; Figure 4 For the present invention Figure 3 A schematic diagram of the enlarged structure of the middle A area; Figure 5 It is a schematic diagram of the three-dimensional structure of the pressing plate of the present invention; Figure 6 This is a schematic diagram of the three-dimensional structure of the pressing plate of the present invention from another perspective; Figure 7 This is a schematic diagram of the three-dimensional structure of the pressing plate of the present invention from another perspective; Figure 8 For the present invention Figure 7 Schematic diagram of the enlarged structure of the middle B area; Fig. 9 It is a schematic diagram of the structure of the fixing component of the present invention.

[0023] In the figure: 1, base; 101, workbench; 102, fixed frame; 103, hydraulic push rod; 104, movable plate; 105, guide rod; 106, pressure sensor; 107, fixed column; 2, test assembly; 201, pressure plate; 202, sliding groove; 203, sliding plate; 2031, through groove; 204, movable rod; 205, fixed block; 206, support frame; 207, roller; 208, connecting rope; 209, mounting groove; 210, fixed rod; 211, rack; 2 12. Positioning block; 213. Rotating shaft; 214. Rotating gear; 215. Rotating wheel; 216. Positioning rod; 217. Positioning plate; 218. Telescopic spring; 219. Connecting rod; 220. Moving plate; 221. Tension spring; 222. Mounting block; 223. Tension; 224. Tension sensor; 3. Fixing assembly; 301. Rectangular groove; 302. Bidirectional screw rod; 303. Hand wheel; 304. Movable seat; 305. Clamp; 306. Moving groove; 307. Limiting rod. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] See also Figure 1-Figure 9 The present invention provides a technical solution: an injection mold pressure testing device, comprising a base 1, a workbench 101 is fixedly installed on the top of the base 1, a fixed frame 102 is fixedly installed on the top of the workbench 101, and a hydraulic push rod 103 is fixedly installed on the top of the fixed frame 102, and the movable end of the hydraulic push rod 103 passes through the fixed frame 102 and is fixedly installed with a movable plate 104, and guide rods 105 are symmetrically installed on both sides of the top of the movable plate 104, and the two guide rods 105 are slidably connected to the fixed frame 102; Also includes: There are two groups of pressure sensors 106 fixedly mounted on the bottom of the movable plate 104, and the bottoms of the two groups of pressure sensors 106 are fixedly mounted with fixing columns 107; The test assembly 2 is arranged below the movable plate 104, and the test assembly 2 includes a pressing plate 201; The pressing plate 201 is fixedly mounted on the bottom ends of the two groups of fixed columns 107. The pressing plate 201 has symmetrically opened sliding grooves 202 inside, and the sliding grooves 202 are slidably connected to the sliding plates 203 inside, and through grooves 2031 are penetrated through the bottom sides of the two sliding plates 203. At the same time, movable rods 204 are symmetrically slidably connected to the inner sides of the pressing plate 201, and fixed blocks 205 are fixedly mounted on the outer tops of the two groups of movable rods 204, and the movable rods 204 are slidably connected to the through grooves 2031. The support frame 206 is symmetrically installed on the top of the pressure plate 201 and is located on one side of the two groups of movable rods 204. There are two groups of support frames 206. One side between each group of two support frames 206 is rotatably connected to a roller 207, and the outside of the roller 207 is rotatably connected to a connecting rope 208, and the two ends of the connecting rope 208 are fixedly connected to the movable rod 204 and the sliding plate 203 respectively.

[0026] Embodiment 1: Figure 1-Figure 7As shown, a test assembly 2 is provided below the movable plate 104. When the injection mold is subjected to a pressure test, the mold is placed on top of the workbench 101, and the hydraulic push rod 103 is started to descend so that the bottom of the pressing plate 201 contacts the mold. If the mold is small, the movable rod 204 does not contact the mold. If the mold is large, the movable plate 104 drives the pressing plate 201 to descend so that the bottom end of the movable rod 204 contacts the mold, and then the pressing plate 201 continues to descend, so that the movable rod 204 slides on the pressing plate 201 and slides in the through groove 2031. After the movable rod 204 moves, the connecting rope 208 can be pulled upward, so that the connecting rope 208 drives the roller 207 to rotate, and then the sliding plate 203 can be pulled to move by the connecting rope 208, and the sliding plate 203 moves in the sliding groove 202 extends out, so that when testing a larger mold, the bottom of the pressing plate 201 and the two sliding plates 203 are both in contact with the mold, which can expand the range of pressure contacting the mold, so that the pressure is applied more evenly on the mold, avoiding uneven pressure affecting the accuracy of the test, and there is no need to replace pressing plates 201 of different sizes when testing molds of different sizes, avoiding the need to calibrate the values ​​after replacement. Through the test component 2, when testing a larger mold, the contact area with the mold can be expanded to avoid uneven pressure caused by the contact area, avoiding affecting the accuracy of the injection mold test, and it can be used for blow molds of different sizes, thereby improving applicability. When pressure testing a larger mold, excessive pressure can be avoided to avoid unnecessary damage and wear to the mold.

[0027] A mounting groove 209 is provided inside the pressure plate 201 between the two sliding grooves 202, and a fixing rod 210 is fixedly installed on the side where the two sliding plates 203 are close to each other, and a rack 211 is fixedly installed on the side where the two fixing rods 210 are close to each other, and a positioning block 212 is symmetrically installed inside the mounting groove 209, and the fixing rod 210 is slidably connected to the positioning block 212, and a rotating shaft 213 is rotatably connected inside the mounting groove 209, and a rotating gear 214 is fixedly installed outside the rotating shaft 213, and the two racks 211 are meshed and connected with the rotating gear 214; The top end of the rotating shaft 213 passes through the pressing plate 201 and is fixedly mounted with a rotating wheel 215, and pull ropes 223 are symmetrically mounted on both sides of the rotating wheel 215, and tension sensors 224 are arranged on the two pull ropes 223; Two groups of positioning rods 216 are symmetrically installed on both sides of the pressure plate 201, and a positioning plate 217 is slidably connected to the outer side of each group of two positioning rods 216, and a telescopic spring 218 is sleeved on the outer side of the two positioning rods 216, and one end of the telescopic spring 218 is fixedly connected to the positioning plate 217, and the other end of the telescopic spring 218 is fixedly connected to the positioning rod 216; The interior of the positioning plate 217 is symmetrically slidably connected with a connecting rod 219, and one end of the two connecting rods 219 is fixedly installed with a moving plate 220, and one side of the exterior of the two connecting rods 219 is sleeved with a tension spring 221, and one end of the tension spring 221 is fixedly connected to the positioning plate 217, and the other end of the tension spring 221 is fixedly installed with a mounting block 222, and the mounting block 222 is fixedly connected to the connecting rod 219; One end of the two pull ropes 223 away from the rotating wheel 215 is fixedly connected to the two moving plates 220 respectively.

[0028] Embodiment 2: Figure 2 and Figure 5-Figure 8 As shown, when testing a larger mold, the two sliding plates 203 move away from each other to drive the fixed rod 210 to move. After the fixed rod 210 moves, it can drive the rack 211 to move. After the rack 211 moves, it can drive the rotating shaft 213 to rotate by meshing with the rotating gear 214. The rotation of the rotating shaft 213 can drive the rotating wheel 215 to rotate. The elastic potential energy of the tension spring 221 is greater than the elastic potential energy of the telescopic spring 218. After the rotating wheel 215 rotates, the moving plate 220 can be pulled to move by pulling the pull rope 223, and then the positioning plate 217 can be pulled to move. The positioning plate 217 moves to fit the front and back sides of the mold. The positioning plate 217 can be used to push the mold to move slightly on the workbench 101, so that the center of the mold can be in the same straight line with the center of the pressure plate 201. If the pull rope 223 continues to move, it can pull the movable plate 220 to move, drive the connecting rod 219 to slide on the positioning plate 217 and stretch the tension spring 221. The tension of the pull rope 223 can be obtained through the tension sensor 224, and the pressure value can be obtained according to the value on the pressure sensor 106. After the mold is positioned, the mold can be positioned and calibrated to avoid the mold from being skewed and affecting the accuracy of the mold pressure test.

[0029] A fixing assembly 3, arranged inside the workbench 101; The fixing assembly 3 includes a rectangular groove 301 opened inside the workbench 101, and a bidirectional screw rod 302 is rotatably connected inside the rectangular groove 301, and one end of the bidirectional screw rod 302 passes through the workbench 101 and is fixedly installed with a hand wheel 303, and at the same time, a movable seat 304 is symmetrically sleeved on the outside of the bidirectional screw rod 302, and the tops of the two movable seats 304 are symmetrically installed with clamping plates 305, and the top of the workbench 101 is located above the rectangular groove 301 and symmetrically opens a movable groove 306, and the clamping plate 305 is slidably connected to the movable groove 306; A limiting rod 307 is fixedly mounted on one side of the two sets of clamping plates 305 , and the limiting rod 307 is slidably connected to the fixing frame 102 .

[0030] Embodiment 3: Figure 1 and Fig. 9 As shown, a fixing component 3 is provided inside the workbench 101. When the mold is tested, the front and rear sides of the mold are positioned by the positioning plate 217. At this time, the hand wheel 303 is turned to drive the bidirectional screw 302 to rotate. After the bidirectional screw 302 rotates, it can drive the two movable seats 304 to approach at the same time, so that the movable seat 304 drives the clamping plate 305 to move, and the clamping plate 305 slides in the movable groove 306 for limiting, and during the movement of the clamping plate 305, the limiting rod 307 is driven to slide on the fixed frame 102, and the movement of the clamping plate 305 is further limited, thereby improving the stability of the movement of the clamping plate 305, thereby making it possible to position the left and right sides of the mold, so as to facilitate the fixation of the mold during testing, and to ensure that the mold is aligned with the center of the pressure plate 201, so as to facilitate testing.

[0031] Working principle: When using this loss-reducing explosion-proof pressure relief transformer, first, according to Figure 1-Figure 9 As shown, when the pressure test of the injection mold is performed, the mold is placed on the top of the workbench 101, and the hydraulic push rod 103 is started to descend so that the bottom of the pressing plate 201 contacts the mold. If the mold is small, the movable rod 204 does not contact the mold. If the mold is large, the movable plate 104 drives the pressing plate 201 to descend so that the bottom of the movable rod 204 contacts the mold, and then the pressing plate 201 continues to descend, so that the movable rod 204 slides on the pressing plate 201 and moves in the through groove 203. 1, after the movable rod 204 moves, the connecting rope 208 can be pulled upward, so that the connecting rope 208 drives the roller 207 to rotate, and then the sliding plate 203 can be pulled to move by the connecting rope 208, and the sliding plate 203 extends out of the sliding groove 202, so that when a larger mold is tested, the bottom of the pressing plate 201 and the two sliding plates 203 are all in contact with the mold, which can expand the range of pressure contacting the mold, so that the pressure is applied to the mold more evenly, avoiding uneven pressure affecting the accuracy of the test; The two sliding plates 203 move away from each other and drive the fixed rod 210 to move. After the fixed rod 210 moves, it can drive the rack 211 to move. After the rack 211 moves, it can drive the rotating shaft 213 to rotate by meshing with the rotating gear 214. The rotation of the rotating shaft 213 can drive the rotating wheel 215 to rotate. The elastic potential energy of the tension spring 221 is greater than the elastic potential energy of the telescopic spring 218. After the rotating wheel 215 rotates, the movable plate 220 can be pulled to move by pulling the pull rope 223, and then the positioning plate 217 is pulled to move. The positioning plate 217 moves and fits the front and back sides of the mold, so that the mold can be pushed to move slightly on the workbench 101 through the positioning plate 217, so that the center of the mold can be in the same straight line with the center of the pressing plate 201. If the pull rope 223 continues to move, the movable plate 220 can be pulled to move, driving the connecting rod 219 to slide on the positioning plate 217 and stretch the tension spring 221. 4 can know the pulling force of the pull rope 223, and then know the pressure value according to the value on the pressure sensor 106, so that after the mold is positioned, the mold can be positioned and calibrated to avoid the mold from being skewed. When testing the mold, the positioning plate 217 is used to position the front and rear sides of the mold. At this time, the hand wheel 303 is turned to drive the bidirectional screw rod 302 to rotate. After the bidirectional screw rod 302 rotates, it can drive the two movable seats 304 to approach at the same time, so that the movable seat 304 drives the clamping plate 305 to move. The clamping plate 305 slides in the moving groove 306 for limiting, and during the movement of the clamping plate 305, the limiting rod 307 is driven to slide on the fixed frame 102, and the movement of the clamping plate 305 is further limited, so as to improve the stability of the movement of the clamping plate 305, so that the left and right sides of the mold can be positioned, which is convenient for the mold to be fixed during the test, and can ensure that the mold is aligned with the center of the pressing plate 201, so as to facilitate the test.

[0032] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0033] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An injection mold pressure testing device, comprising a base (1), a workbench (101) is fixedly installed on the top of the base (1), a fixed frame (102) is fixedly installed on the top of the workbench (101), and a hydraulic push rod (103) is fixedly installed on the top of the fixed frame (102), and the movable end of the hydraulic push rod (103) passes through the fixed frame (102) and is fixedly installed with a movable plate (104), and guide rods (105) are symmetrically installed on both sides of the top of the movable plate (104), and the two guide rods (105) are slidably connected to the fixed frame (102); It is characterized in that Also includes: Two groups of pressure sensors (106) are fixedly mounted on the bottom of the movable plate (104), and the bottoms of the two groups of pressure sensors (106) are fixedly mounted with fixing columns (107); A test assembly (2) is arranged below the movable plate (104), and the test assembly (2) comprises a pressing plate (201); A fixing assembly (3) is arranged inside the workbench (101); A pressure plate (201) is fixedly mounted on the bottom ends of the two groups of fixed columns (107), the pressure plate (201) is symmetrically provided with sliding grooves (202) inside, and the sliding grooves (202) are slidably connected with sliding plates (203) inside, and through grooves (2031) are penetrated through one side of the bottom of the two sliding plates (203), and movable rods (204) are symmetrically slidably connected on both sides of the pressure plate (201), and fixed blocks (205) are fixedly mounted on the upper parts of the two groups of movable rods (204), and the movable rods (204) are slidably connected with the through grooves (2031); The support frames (206) are symmetrically mounted on the top of the pressure plate (201) and are located on one side of the two groups of movable rods (204). One side between the two support frames (206) in each group is rotatably connected to a roller (207), and the outside of the roller (207) is rotatably connected to a connecting rope (208), and the two ends of the connecting rope (208) are fixedly connected to the movable rod (204) and the sliding plate (203) respectively.

2. The injection mold pressure testing device according to claim 1, characterized in that: The pressure plate (201) is provided with an installation groove (209) between the two sliding grooves (202), and a fixing rod (210) is fixedly installed on the side where the two sliding plates (203) are close to each other, and a rack (211) is fixedly installed on the side where the two fixing rods (210) are close to each other, and a positioning block (212) is symmetrically installed inside the installation groove (209), and the fixing rod (210) is slidably connected to the positioning block (212), and a rotating shaft (213) is rotatably connected inside the installation groove (209), and a rotating gear (214) is fixedly installed outside the rotating shaft (213), and the two racks (211) are meshingly connected with the rotating gear (214).

3. The injection mold pressure testing device according to claim 2, characterized in that: The top end of the rotating shaft (213) passes through the pressure plate (201) and is fixedly mounted with a rotating wheel (215), and pull ropes (223) are symmetrically mounted on both sides of the rotating wheel (215), and tension sensors (224) are arranged on both pull ropes (223).

4. The injection mold pressure testing device according to claim 3, characterized in that: Two groups of positioning rods (216) are symmetrically installed on both sides of the pressure plate (201), and the outer side of each group of two positioning rods (216) is slidably connected with a positioning plate (217), and the outer side of the two positioning rods (216) is sleeved with a telescopic spring (218), and one end of the telescopic spring (218) is fixedly connected to the positioning plate (217), and the other end of the telescopic spring (218) is fixedly connected to the positioning rod (216).

5. The injection mold pressure testing device according to claim 4, characterized in that: The interior of the positioning plate (217) is symmetrically and slidably connected with a connecting rod (219), and one end of the two connecting rods (219) is fixedly installed with a movable plate (220), and one side of the exterior of the two connecting rods (219) is sleeved with a tension spring (221), and at the same time, one end of the tension spring (221) is fixedly connected to the positioning plate (217), and the other end of the tension spring (221) is fixedly installed with a mounting block (222), and the mounting block (222) is fixedly connected to the connecting rod (219).

6. The injection mold pressure testing device according to claim 5, characterized in that: One end of the two pull ropes (223) away from the rotating wheel (215) is fixedly connected to the two movable plates (220) respectively.

7. The injection mold pressure testing device according to claim 1, characterized in that: The fixing assembly (3) comprises a rectangular groove (301) provided inside the workbench (101), and a bidirectional screw rod (302) is rotatably connected inside the rectangular groove (301), and one end of the bidirectional screw rod (302) passes through the workbench (101) and is fixedly installed with a hand wheel (303), and at the same time, a movable seat (304) is symmetrically sleeved on the outside of the bidirectional screw rod (302), and two clamping plates (305) are symmetrically installed on the top of the two movable seats (304), and a movable groove (306) is symmetrically provided on the top of the workbench (101) above the rectangular groove (301), and the clamping plate (305) is slidably connected to the movable groove (306).

8. The injection mold pressure testing device according to claim 7, characterized in that: A limiting rod (307) is fixedly mounted on one side of the two groups of clamping plates (305), and the limiting rod (307) is slidably connected to the fixing frame (102).

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