CN117848863B - Tensile strength test equipment for injection molding part of printer - Google Patents
Tensile strength test equipment for injection molding part of printer Download PDFInfo
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- CN117848863B CN117848863B CN202410054158.0A CN202410054158A CN117848863B CN 117848863 B CN117848863 B CN 117848863B CN 202410054158 A CN202410054158 A CN 202410054158A CN 117848863 B CN117848863 B CN 117848863B
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- 238000001746 injection moulding Methods 0.000 title claims abstract description 68
- 238000012360 testing method Methods 0.000 title claims abstract description 19
- 238000001125 extrusion Methods 0.000 claims abstract description 77
- 230000007246 mechanism Effects 0.000 claims abstract description 59
- 239000010720 hydraulic oil Substances 0.000 claims abstract description 10
- 239000007788 liquid Substances 0.000 claims description 15
- 238000003825 pressing Methods 0.000 claims description 12
- 238000007789 sealing Methods 0.000 claims description 9
- 230000005540 biological transmission Effects 0.000 claims description 5
- 239000002131 composite material Substances 0.000 abstract description 2
- 238000002156 mixing Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 6
- 239000004033 plastic Substances 0.000 description 5
- 229920003023 plastic Polymers 0.000 description 5
- 238000001514 detection method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 238000009864 tensile test Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- -1 lifting Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
- G01N3/10—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces generated by pneumatic or hydraulic pressure
- G01N3/12—Pressure testing
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
- G01N3/04—Chucks
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/06—Indicating or recording means; Sensing means
- G01N2203/067—Parameter measured for estimating the property
- G01N2203/0676—Force, weight, load, energy, speed or acceleration
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- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention discloses tensile strength testing equipment for an injection molding piece of a printer, and particularly relates to the technical field related to tensile strength testing devices. According to the tensile strength testing equipment for the injection molding piece of the printer, provided by the invention, the clamping plate, the hydraulic oil, the fixing mechanism, the T-shaped extrusion plate, the driving mechanism and the like are arranged, so that the clamping mechanism can still quickly and effectively and automatically position and fasten the injection molding piece by mixing and superposing the composite force in various modes under the condition of no tool and power failure, and the convenience, the reliability and the practicability of the device are improved.
Description
Technical Field
The invention relates to the technical field related to tensile testing devices, in particular to tensile strength testing equipment for an injection molding part of a printer.
Background
The plastic housing of the printer needs to withstand various external forces such as vibration and impact during handling, carrying and transportation by a user, and in order to ensure durability of the housing, a tensile strength test is required to evaluate its structural strength and stability.
The utility model provides a chinese patent document CN214251818U discloses a tensile strength detection device of modified plastics, includes frame, support frame, activity fixture and control mechanism, the fixed support frame that is provided with in top of frame, the inboard activity of support frame is provided with activity fixture, the fixed control mechanism that is provided with in top of frame, activity fixture includes motor, threaded rod and movable fixture, and this scheme device is through setting up fixation clamp, makes it carry out dual function with movable fixture, and then effectively carries out the centre gripping to modified plastics, and then motor drive threaded rod operation to drive the connecting plate and do axial motion along the direction of rotation of threaded rod, and then so that adjust movable fixture's use height, be convenient for it carries out tensile detection to modified plastics, reduce the effect that receives plastics elasticity factor, lead to its detection centre gripping to take place to rock, influence the accuracy of device testing result, and then improved the guarantee nature that the device used, strengthened the practicality of device, but still exist following not enough:
The anchor clamps in this scheme device still use traditional technical scheme, fix injection molding through bolt or automatically controlled mode, and the fixed mode is comparatively single to still can't be fast effectual to the injection molding under the condition that does not have instrument and outage fasten.
Disclosure of Invention
The invention mainly aims to provide a tensile strength testing device for an injection molding piece of a printer, which can effectively solve the problem that the injection molding piece cannot be fast and effectively fastened under the conditions of no tool and power failure.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
The utility model provides a printer injection molding tensile strength test equipment, includes outer frame, the inboard sliding connection of outer frame has the movable plate, the upper end middle part of outer frame is equipped with the cylinder, the output of cylinder runs through the roof of outer frame and fixed connection on the movable plate, the lower extreme middle part of movable plate is equipped with tension sensor, tension sensor's bottom and the inner chamber diapire middle part of outer frame all are equipped with the fixture that is used for fixed injection molding.
Preferably, the clamping mechanism comprises a U-shaped base, the tops of two vertical parts of the U-shaped base are both provided with fixing mechanisms for secondarily fastening injection molding pieces, the front inner side wall and the rear inner side wall of the U-shaped base are both provided with two first springs, two first springs located on the same horizontal direction are jointly provided with clamping plates for temporarily limiting the positions of injection molding pieces at one ends of the first springs far away from the U-shaped base, and the upper parts of the clamping plates incline towards the vertical parts of the same side of the U-shaped base.
Preferably, the reservoir has been seted up to the diapire inside of U-shaped base, the inside vertical sliding connection of reservoir has T shape stripper plate, the vertical portion of T shape stripper plate runs through the diapire of U-shaped base and extends to the opening part inboard of U-shaped base, the reservoir is located the part of T shape stripper plate downside and is filled with hydraulic oil, the mounting groove has all been seted up to the inside of two vertical portions of U-shaped base, just the mounting groove communicates with each other with the reservoir, the inboard of mounting groove is equipped with the actuating mechanism who is used for controlling fixed establishment and removes.
Preferably, the driving mechanism comprises a sealing baffle which is slidably connected in the mounting groove, two springs II are jointly arranged between the lower end of the sealing baffle and the bottom wall of the inner cavity of the mounting groove, one side, far away from the T-shaped extrusion plate, of the upper end of each spring II is provided with a rack plate I, the middle part and the top part of the inner side of the mounting groove are respectively provided with a rotating rod I and a rotating rod II, the rotating rods II and the rotating rods I are connected through belt transmission, the middle part of the outer surface of each rotating rod I is provided with a gear column II meshed with the rack plate I, the middle part of the outer surface of each rotating rod II is provided with a gear column I, and the left part and the right part of the outer surface of each rotating rod II are jointly provided with an interception mechanism for preventing the rotation of the gear column I.
Preferably, the interception mechanism comprises a pressing plate positioned on the outer side of the U-shaped base and two U-shaped mounting plates fixedly connected to the inner wall of one side of the mounting groove, which is close to the inner side of the opening of the U-shaped base, a rotating rod is horizontally connected to the inner side of the opening of the U-shaped mounting plate in a rotating mode, a torsion spring is jointly arranged between the outer surface of the rotating rod and the inner wall of the U-shaped mounting plate, a pawl is arranged in the middle of the outer surface of the rotating rod, a rotating baffle matched with the pressing plate is arranged at the bottom of the outer surface of the pawl, one end, close to the inner side of the opening of the U-shaped base, of the two horizontal parts of the pressing plate penetrates through the side wall of the mounting groove and is mutually clung to the rotating baffle on the same side, and a ratchet wheel is arranged on the left part of the outer surface of the second rotating rod and the right part of the outer surface of the rotating rod and the pawl on the same side.
Preferably, the fixed establishment includes the extrusion box of sliding connection at the vertical partial top of U-shaped base, the one end that the extrusion box is close to the inboard of U-shaped base opening part is equipped with the rubber pad, the inner chamber horizontal sliding connection of extrusion box has the extrusion board, the lower extreme middle part of extrusion board is equipped with the rack board two with gear post one meshing, the spacing groove has all been seted up on the lower extreme left part and the lower extreme right part of extrusion board, the equal sliding connection of lower extreme left part and the lower extreme right part of extrusion board has the Z shape extrusion board that is located the extrusion box inboard, just the vertical partial horizontal sliding connection of Z shape extrusion board on upper portion is in the spacing inslot of same one side, be equipped with two springs three jointly between the one end that the rubber pad was kept away from to Z shape extrusion board and the inner wall of spacing groove.
Preferably, one end of the pushing plate, which is close to the rubber pad, is uniformly provided with a plurality of grinding rods, a part of the grinding rods, which is close to the rubber pad, is of a spherical structure, and a part of the grinding rods, which is close to the rubber pad, penetrates through the side wall of the extrusion box and abuts against the rubber pad.
Preferably, the length of the grinding rod is greater than the thickness of one side wall of the extrusion box, which is close to the rubber pad, and the length of the grinding rod is less than the sum of the thickness of one side wall of the extrusion box, which is close to the rubber pad, and the thickness of the rubber pad.
Preferably, in the initial state, the whetstone is completely located inside the extrusion box.
Compared with the prior art, the invention has the following beneficial effects:
1. According to the invention, the clamping plate is arranged so as to quickly position the injection molding piece, the injection molding piece is prevented from toppling when the clamping mechanism does not limit the injection molding piece, so that the injection molding piece is convenient for a single person to operate.
2. According to the invention, through the structures such as the fixing mechanism, the T-shaped extrusion plate, the driving mechanism and the like, the clamping force of the clamping mechanism on the injection molding piece is increased by mixing and superposing the composite force in various modes, and the blocking mechanism can be utilized to improve the stability between the clamping mechanism and the injection molding piece, so that the reliability of the clamping mechanism is improved.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a schematic view of a clamping mechanism according to the present invention;
FIG. 3 is a side cross-sectional view of the clamping mechanism of the present invention;
FIG. 4 is a schematic diagram of a driving mechanism according to the present invention;
FIG. 5 is a schematic structural view of the fixing mechanism of the present invention;
FIG. 6 is a diagram showing the position distribution of the rack plate II, the Z-shaped extrusion plate and the whetstone rod according to the present invention;
FIG. 7 is an enlarged view at A of FIG. 3;
Fig. 8 is a schematic structural view of the interception mechanism of the present invention.
In the figure: 1. an outer frame; 2. a moving plate; 3. a cylinder; 4. a tension sensor; 5.a clamping mechanism; 51. a U-shaped base; 52. a fixing mechanism; 521. extruding the box; 522. a pushing plate; 523. a limit groove; 524. a third spring; 525. rack plate II; 526. a Z-shaped extrusion plate; 527. a wheel bar; 528. a rubber pad; 53. a clamping plate; 54. a first spring; 55. a T-shaped extrusion plate; 56. a liquid storage tank; 57. a mounting groove; 58. a driving mechanism; 581. a sealing baffle; 582. rack plate I; 583. rotating the first rod; 584. a second rotating rod; 585. a gear column I; 586. a gear post II; 587. a second spring; 59. an interception mechanism; 591. pressing the plate; 592. a ratchet wheel; 593. a U-shaped mounting plate; 594. a pawl; 595. and (5) rotating the baffle.
Detailed Description
The invention is further described in connection with the following detailed description, in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the invention easy to understand.
As shown in figure 1, the tensile strength testing equipment for the injection molding piece of the printer comprises an outer frame 1, wherein the inner side of the outer frame 1 is slidably connected with a movable plate 2, the middle part of the upper end of the outer frame 1 is provided with a cylinder 3, the output end of the cylinder 3 penetrates through the top wall of the outer frame 1 and is fixedly connected to the movable plate 2, the middle part of the lower end of the movable plate 2 is provided with a tension sensor 4, the tension sensor 4 is a device for converting physical signals into measurable electric signals and outputting, the tension sensor 4 uses two tension transmission parts to transmit force, the structure of the tension sensor 4 comprises a force-sensitive device and two tension transmission parts, the tension sensor 4 is easy to install and convenient to use, can work under severe conditions, has good frequency response characteristics and is widely applied to industries such as building materials, lifting, chemical industry and the like, and the middle part of the bottom of the tension sensor 4 and the bottom wall of the inner cavity of the outer frame 1 is provided with a clamping mechanism 5 for fixing the injection molding piece;
From this, it can be seen that after the printer injection molding is fixed between the two clamping mechanisms 5, the tensile strength of the printer injection molding can be measured by only controlling the contraction of the cylinder 3 and applying a tensile force to the tension sensor 4 through the moving plate 2.
Because the two clamping mechanisms 5 have the same structure and opposite directions, for convenience in description, the following description on the clamping mechanisms 5 mainly refers to the clamping mechanism 5 positioned at the bottom of the outer frame 1, as shown in fig. 2, the clamping mechanism 5 comprises a U-shaped base 51, the tops of two vertical parts of the U-shaped base 51 are respectively provided with a fixing mechanism 52 for secondarily fastening injection molding pieces, front and rear inner side walls of the U-shaped base 51 are respectively provided with two first springs 54, one ends of the two first springs 54, which are positioned in the same horizontal direction, far away from the U-shaped base 51 are jointly provided with a clamping plate 53 for temporarily limiting the position of an injection molding piece, so that when the injection molding piece is placed on the inner side of the clamping mechanism 5 positioned on the outer frame 1, the clamping mechanism 5 on the movable plate 2 can be kept in a vertical state, the injection molding piece is conveniently fixed by moving downwards, the upper parts of the clamping plates 53 are inclined towards the vertical parts on the same side of the U-shaped base 51, namely, the clamping plates 53 are in a V-shaped state with an included angle larger than 90 degrees, and when the two clamping plates 53 are mutually clung, the two clamping plates 53 are jointly provided with a Y-shaped clamping plate, so that the injection molding piece can be conveniently inserted between the two clamping plates 53 of a printer;
As shown in fig. 3, a liquid storage tank 56 is formed in the bottom wall of the U-shaped base 51, a T-shaped extrusion plate 55 is vertically and slidably connected in the liquid storage tank 56, a vertical portion of the T-shaped extrusion plate 55 penetrates through the bottom wall of the U-shaped base 51 and extends to the inner side of an opening of the U-shaped base 51, a part of the liquid storage tank 56 located at the lower side of the T-shaped extrusion plate 55 is filled with hydraulic oil, mounting grooves 57 are formed in the two vertical portions of the U-shaped base 51, the mounting grooves 57 are communicated with the liquid storage tank 56, and the length and width of the mounting grooves 57 are smaller than those of the liquid storage tank 56, so that after the hydraulic oil is extruded into the mounting grooves 57 by the T-shaped extrusion plate 55, the liquid level of the hydraulic oil in the mounting grooves 57 is larger than the maximum height of the upper end face of the T-shaped extrusion plate 55;
as shown in fig. 3 and 4, a driving mechanism 58 for controlling the fixing mechanism 52 to move is arranged on the inner side of the mounting groove 57, the driving mechanism 58 comprises a sealing baffle 581 which is slidably connected in the mounting groove 57, two springs II 587 are jointly arranged between the lower end of the sealing baffle 581 and the bottom wall of the inner cavity of the mounting groove 57, the springs II 587 are always in a stretching state, a rack plate I582 is arranged on one side, far away from the T-shaped extrusion plate 55, of the upper end of the springs II 587, a rotating rod I583 and a rotating rod II 584 are respectively arranged on the middle part and the top part of the inner side of the mounting groove 57, the rotating rod II 584 and the rotating rod I583 are connected through belt transmission, a gear column II 586 meshed with the rack plate I582 is arranged on the middle part of the outer surface of the rotating rod I583, and a gear column I585 is arranged on the middle part of the outer surface of the rotating rod II 584;
It can be seen that, after the injection molding is inserted between the two clamping plates 53, the T-shaped extrusion plate 55 is pushed into the liquid storage tank 56, so that the hydraulic oil in the liquid storage tank 56 is forced to flow into the mounting groove 57, then the hydraulic oil pushes the sealing baffle 581 to move upwards, the toothed plate one 582 controls the meshed gear column two 586 to rotate, then the gear column two 586 drives the rotating rod two 584 and the gear column one 585 to synchronously rotate through the rotating rod one 583 and the belt, and the fixing mechanism 52 is controlled to move towards the injection molding, so as to clamp and fix the injection molding for the second time;
as shown in fig. 5 and 6, the fixing mechanism 52 includes an extrusion box 521 slidingly connected to the top of the vertical portion of the U-shaped base 51, a rubber pad 528 is disposed at one end of the extrusion box 521 near the inner side of the opening of the U-shaped base 51, in order to detect accuracy and comparability of data and safety of staff during tensile test, the rubber pad 528 is disposed, so as to protect an injection molding piece from being damaged as far as possible, the inner cavity of the extrusion box 521 is horizontally slidingly connected with an extrusion plate 522, a rack plate two 525 meshed with a gear column one 585 is disposed in the middle of the lower end of the extrusion plate 522, limit grooves 523 are formed in both left and right of the lower end of the extrusion plate 522, a Z-shaped extrusion plate 526 located at the inner side of the extrusion box 521 is slidingly connected with the limit groove 526 located at the upper portion, and two springs three springs 524 are disposed between one end of the Z-shaped extrusion plate 526 far from the rubber pad 528 and the inner wall of the limit groove 523 so as to increase extrusion force of the injection molding piece 521 by using the springs three compression plates 526;
Therefore, when the first gear post 585 rotates, the second rack plate 525 controls the pushing plate 522 to move towards the injection molding member, so as to push the extrusion box 521 to press and fix the injection molding member, and in this process, when the pushing plate 522 does not contact the side wall of the extrusion box 521 near the injection molding member, the extrusion box 521 contacts the injection molding member under the pushing of the Z-shaped extrusion plate 526, and then when the pushing plate 522 continues to move to contact the side wall of the extrusion box 521 near the injection molding member, the third spring 524 is further compressed, so that the extrusion box 521 is pushed by the Z-shaped extrusion plate 526 in addition to the pushing force of the pushing plate 522, thereby increasing the force of the extrusion box 521 to press and fix the injection molding member, and reducing the probability that the injection molding member is separated from the clamping mechanism 5 before the completion of the test.
Further, as shown in fig. 6 and 7, a plurality of grinding rods 527 are uniformly arranged at one end of the pushing plate 522 close to the rubber pad 528, and a part of the grinding rods 527 close to the rubber pad 528 has a spherical structure, so that the rubber pad 528 is prevented from being punctured, and a part of the grinding rods 527 close to the rubber pad 528 penetrates through the side wall of the extrusion box 521 and abuts against the rubber pad 528, so that the extrusion force of the extrusion box 521 on an injection molding piece is further increased by increasing the local pressure;
Further, as shown in fig. 7, the length of the grinding rod 527 is greater than the thickness of a side wall of the extrusion box 521, which is close to the rubber pad 528, and the length of the grinding rod 527 is smaller than the sum of the thickness of a side wall of the extrusion box 521, which is close to the rubber pad 528, and the rubber pad 528, so that the extrusion box 521 uses the pushing force of the pushing plate 522 to extrude and fix the injection molding piece, and the local pressure between the grinding rod 527 and the injection molding piece is increased, so that the clamping force of the clamping mechanism 5 on the injection molding piece is further improved;
Further, in the initial state, the grinding rod 527 is located completely inside the pressing box 521, that is, the sum of the lengths of the pushing plate 522 and the grinding rod 527 is smaller than the inner width of the pressing box 521.
As shown in fig. 3 and 8, the left part and the right part of the outer surface of the rotating rod two 584 are jointly provided with an interception mechanism 59 for preventing the gear column one 585 from rotating, the interception mechanism 59 comprises a pressing plate 591 positioned on the outer side of the U-shaped base 51 and two U-shaped mounting plates 593 fixedly connected to the inner wall of one side of the mounting groove 57, which is close to the inner side of the opening of the U-shaped base 51, the whole pressing plate 591 is in a U shape, but the horizontal part of the pressing plate 591 is also bent, so that the side view of the pressing plate 591 is in an L shape.
Therefore, the specific implementation manner of this embodiment is as follows:
Firstly, the injection molding piece is inserted between two clamping plates 53 positioned at the bottom of the outer frame 1, then the air cylinder 3 stretches to push the moving plate 2 to move downwards, so that the clamping mechanism 5 connected with the tension sensor 4 can clamp and fix the top of the injection molding piece, then the moving plate 2 continues to move downwards, so that the T-shaped extrusion plate 55 is pushed into the liquid storage groove 56 by the injection molding piece, hydraulic oil in the liquid storage groove 56 is forced to flow into the mounting groove 57, then the hydraulic oil pushes the sealing baffle 581 to move, the gear post II 586 is controlled to rotate by the gear post I582, the gear post II 586 drives the rotating rod II 584 and the gear post I585 to synchronously rotate by the rotating rod I583 and the belt, then the gear post I585 controls the pushing plate 522 to move towards the injection molding piece by the gear post II 525, the extrusion box 521 is pushed to clamp and fix the injection molding piece secondarily, in this process, when the pushing plate 522 does not contact the side wall of the extrusion box 521 near the injection molding piece, the extrusion box 521 contacts the injection molding piece under the pushing of the Z-shaped extrusion plate 526, then when the pushing plate 522 continues to move to contact the side wall of the extrusion box 521 near the injection molding piece, the local pressure between the fixing mechanism 52 and the injection molding piece is increased by the grinding rod 527, and the third spring 524 is further compressed, so that the force of the extrusion box 521 for extrusion fixing the injection molding piece is increased, the probability that the injection molding piece is separated from the clamping mechanism 5 before the test is finished is reduced, the cylinder 3 is controlled to shrink, the tensile strength of the injection molding piece of the printer can be measured by applying a tensile force to the tension sensor 4 by the moving plate 2, and in this process, the second rotating rod 584 keeps the current state under the cooperation blocking of the ratchet wheel 592 and the pawl 594;
After the test is finished, only the pressing plate 591 needs to be pressed, the rotating baffle 595 is pushed to rotate, the pawl 594 is separated from the latch on the surface of the ratchet 592, then the pushing plate 522 moves away from the injection molding under the rebound action of the spring III 524, so that the extrusion force of the fixing mechanism 52 on the injection molding is reduced, and finally the injection molding is directly taken down from the clamping mechanism 5.
The foregoing has shown and described the basic principles and main features of the present invention and the advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (5)
1. The utility model provides a printer injection molding tensile strength test equipment, includes outer frame (1), its characterized in that: the inner side of the outer frame (1) is slidably connected with a moving plate (2), an air cylinder (3) is arranged in the middle of the upper end of the outer frame (1), the output end of the air cylinder (3) penetrates through the top wall of the outer frame (1) and is fixedly connected to the moving plate (2), a tension sensor (4) is arranged in the middle of the lower end of the moving plate (2), and clamping mechanisms (5) for fixing injection molding pieces are arranged at the bottoms of the tension sensor (4) and the middle of the bottom wall of an inner cavity of the outer frame (1);
The clamping mechanism (5) comprises a U-shaped base (51), fixing mechanisms (52) for secondarily fastening injection molding pieces are arranged at the tops of two vertical parts of the U-shaped base (51), two first springs (54) are arranged on the front inner side wall and the rear inner side wall of the U-shaped base (51), clamping plates (53) for temporarily limiting the positions of the injection molding pieces are arranged at one ends, away from the U-shaped base (51), of the first springs (54) in the same horizontal direction, and the upper parts of the clamping plates (53) incline towards the vertical parts of the same side of the U-shaped base (51);
a liquid storage tank (56) is formed in the bottom wall of the U-shaped base (51), a T-shaped extrusion plate (55) is vertically and slidingly connected in the liquid storage tank (56), the vertical part of the T-shaped extrusion plate (55) penetrates through the bottom wall of the U-shaped base (51) and extends to the inner side of the opening of the U-shaped base (51), one part of the liquid storage tank (56) positioned at the lower side of the T-shaped extrusion plate (55) is filled with hydraulic oil, mounting grooves (57) are formed in the two vertical parts of the U-shaped base (51), the mounting grooves (57) are communicated with the liquid storage tank (56), and a driving mechanism (58) for controlling the fixing mechanism (52) to move is arranged at the inner side of the mounting grooves (57);
The driving mechanism (58) comprises a sealing baffle plate (581) which is slidably connected in the mounting groove (57), two springs II (587) are jointly arranged between the lower end of the sealing baffle plate (581) and the bottom wall of the inner cavity of the mounting groove (57), a rack plate I (582) is arranged at one side, far away from the T-shaped extrusion plate (55), of the upper end of each spring II (587), a rotating rod I (583) and a rotating rod II (584) are respectively arranged at the middle part and the top part of the inner side of the mounting groove (57), the rotating rod II (584) and the rotating rod I (583) are connected through belt transmission, a gear column II (586) meshed with the rack plate I (582) is arranged at the middle part of the outer surface of the rotating rod I (583), and an interception mechanism (59) for preventing the gear column I (584) from rotating is jointly arranged at the left part and the right part of the outer surface of the rotating rod II (584);
The fixing mechanism (52) comprises an extrusion box (521) which is slidably connected to the top of the vertical portion of the U-shaped base (51), a rubber pad (528) is arranged at one end, close to the inner side of the opening of the U-shaped base (51), of the extrusion box (521), an extrusion plate (522) is horizontally slidably connected to the inner cavity of the extrusion box (521), a rack plate II (525) meshed with a gear column I (585) is arranged in the middle of the lower end of the extrusion plate (522), limiting grooves (523) are formed in the left portion and the right portion of the lower end of the extrusion plate (522), Z-shaped extrusion plates (526) are slidably connected to the left portion and the right portion of the lower end of the extrusion plate (522), the Z-shaped extrusion plates (526) are located in the limiting grooves (523) on the same side in a horizontal sliding mode, and two springs III (524) are jointly arranged between one end, far away from the rubber pad (528), and the inner walls of the limiting grooves (523).
2. The printer injection molding tensile strength testing apparatus of claim 1, wherein: the utility model provides an interception mechanism (59) is including being located push plate (591) and two fixed connection on the inboard one side inner wall of mounting groove (57) near U-shaped base (51) opening part inboard U-shaped mounting panel (593) in U-shaped base (51), the inboard level rotation of opening part of U-shaped mounting panel (593) is connected with rotatory stick, be equipped with the torsional spring jointly between the surface of rotatory stick and the inner wall of U-shaped mounting panel (593), the surface middle part of rotatory stick is equipped with pawl (594), the surface bottom of pawl (594) is equipped with rotatory baffle (595) that use with push plate (591) cooperation, the one end that two horizontal parts of push plate (591) are close to U-shaped base (51) opening part inboard all runs through the lateral wall of mounting groove (57) and hugs closely each other with rotatory baffle (595) of same side, the surface left part and the surface right part of dwang two (584) all are equipped with ratchet (592) just ratchet (592) and pawl (594) of same side use mutually.
3. The printer injection molding tensile strength testing apparatus of claim 2, wherein: one end of the pushing plate (522) close to the rubber pad (528) is uniformly provided with a plurality of grinding rods (527), one part of the grinding rods (527) close to the rubber pad (528) is of a spherical structure, and one part of the grinding rods (527) close to the rubber pad (528) penetrates through the side wall of the pressing box (521) and abuts against the rubber pad (528).
4. A printer injection molding tensile strength testing apparatus according to claim 3, wherein: the length of the grinding rod (527) is larger than the thickness of one side wall of the extrusion box (521) close to the rubber pad (528), and the length of the grinding rod (527) is smaller than the sum of the thickness of one side wall of the extrusion box (521) close to the rubber pad (528) and the rubber pad (528).
5. The printer injection molding tensile strength testing apparatus of claim 4, wherein: in the initial state, the grinding rod (527) is completely positioned inside the extrusion box (521).
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