Gap adjusting structure of vulkameter

Abstract

The gap adjusting structure comprises an upper die base, a containing cavity with a downward opening is formed in the upper die base, and a bottom plate is arranged at the bottom of the containing cavity; the bottom plate is located on the top of the upper die base, and a through screw hole is formed in the middle of the bottom plate. A fixing seat is arranged on the upper die seat, and fixing plates extending towards the upper die seat are arranged on the two sides of the fixing seat; an adjusting rotary disc is arranged on the face, facing the upper die base, of the fixing base and located between the fixing plates on the two sides, studs corresponding to the screw holes in a matched mode are arranged on the adjusting rotary disc, and the studs are in threaded connection with the screw holes. A plurality of evenly-distributed inserting holes are formed in the outer side wall of the adjusting rotary disc. The utility model relates to a mold gap rapid adjusting structure of a vulkameter, which can conveniently lift and adjust the height of a mold core to reach the mold cavity gap height required by the thickness of a sample.

Description

Technical Field

[0001] The utility model relates to the technical field of testers, in particular to a mold cavity gap adjustment structure of a vulcanizer. Background Art

[0002] Rheometers are used to analyze and measure performance indicators such as scorch time, cure time, cure rate, viscoelasticity, and cure plateau during the rubber vulcanization process. They are crucial testing instruments used by the rubber industry to develop new products, research rubber compound formulations, and verify rubber quality. During testing, a rubber specimen is placed in a sealed, pressurized mold cavity consisting of an upper and lower mold section. The lower mold section undergoes a small linear reciprocating motion (oscillatory movement) to induce shear strain in the specimen. The upper mold section is connected to a torque sensor (torque element) to measure the reaction torque (force) exerted by the specimen on the mold cavity. The magnitude of this torque (force) depends on the shear modulus of the rubber compound.

[0003] Because the thickness of the test specimens varies, the gap between the upper and lower parts of the mold cavity needs to be adjusted to achieve the required cavity gap height for the specimen thickness. The existing adjustment structure uses four bolts around the fixed base and the upper mold base. These four screws and nuts adjust the distance between the fixed base and the upper mold base, and thus the mold core gap. This operation is cumbersome, time-consuming, and labor-intensive. Utility Model Content

[0004] In order to solve the problems existing in the prior art, the utility model provides a gap adjustment structure for a vulcanizer, the purpose of which is to conveniently adjust the displacement of the mold core (inner core) by lifting and lowering to achieve the mold cavity gap height required for the sample thickness.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A gap adjustment structure for a vulcanizer includes an upper die base, wherein the upper die base is provided with a downwardly opening accommodating cavity, and a bottom plate is provided at the bottom of the accommodating cavity; the bottom plate is located on the top of the upper die base, and a through screw hole is provided in the middle of the bottom plate;

[0007] A fixing seat is provided on the upper die seat, and fixing plates extending toward the upper die seat are provided on both sides of the fixing seat; an adjustment dial is provided on the side of the fixing seat facing the upper die seat, and the adjustment dial is located between the fixing plates on both sides, and a stud corresponding to the screw hole is provided on the adjustment dial, and the stud is threadedly connected to the screw hole;

[0008] A plurality of evenly distributed jacks are provided on the outer side wall of the adjusting turntable.

[0009] Furthermore, in some embodiments, a hard gasket is provided between the adjustment turntable and the upper die base, the hard gasket is sleeved on the stud, and the hard gasket is arranged adjacent to the top surface of the bottom plate of the upper die base;

[0010] A plurality of evenly distributed placement holes are provided on the side of the adjustment dial facing the hard gasket. The placement holes are arranged on the outside of the studs, and the placement holes and the jacks are staggered. Spring steel balls are provided in the placement holes, and the lower ends of the spring steel balls extend outside the placement holes. The lower ends of the spring steel balls are tightly pressed against the hard gasket.

[0011] Furthermore, in some embodiments, an opening is formed between the fixing plates on both sides of the fixing seat, and a scale is provided on the outer side wall of the fixing seat, and the scale is located above the opening between the fixing plates on both sides;

[0012] The socket for adjusting the dial is located in the opening between the fixing plates on both sides.

[0013] Furthermore, in some embodiments, a group of matching symmetrical first positioning holes are opened on the downward side of the bottom plate, and the first positioning holes are located on both sides of the screw holes symmetrically.

[0014] Furthermore, in some embodiments, a sensor fixing seat is provided at one end of the stud away from the fixing seat, the sensor fixing seat is disposed in the accommodating cavity of the upper mold seat, and the sensor fixing seat is disposed adjacent to the bottom plate;

[0015] A second positioning hole is provided on the sensor fixing seat and matches the first positioning hole. Positioning rods are provided in the first positioning hole and the second positioning hole. One end of the positioning rod is arranged in the first positioning hole, and the other end of the positioning rod is arranged in the second positioning hole.

[0016] Furthermore, in some embodiments, a torque element is provided on the side of the sensor fixing seat away from the stud, a thermal break seat is provided on the end of the torque element away from the sensor fixing seat, a thermal mold is provided on the end of the thermal break seat away from the torque element, and a downwardly protruding upper mold cavity is provided in the middle of the thermal mold.

[0017] Furthermore, in some embodiments, an upper mold cover is provided on a side of the upper mold base away from the fixed base, a placement opening is provided on a bottom surface of the upper mold cover away from the upper mold base, and the upper mold cavity is provided in the placement opening.

[0018] The present application is a rapid mold gap adjustment structure of a vulcanizer, which adjusts the longitudinal height of the inner core (sensor fixing seat → upper mold cavity) of the vulcanizer by inserting an iron rod into the jack on the adjustment dial and rotating the adjustment dial to rotate the lifting and lowering threaded engaging teeth of the adjustment dial and the upper mold seat (i.e., the stud and the screw hole), and then moves the entire inner core (upper mold cavity to the torque element) up and down to conveniently adjust the height of the mold core (upper mold cavity) to achieve the mold cavity gap thickness required by the sample. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A three-dimensional schematic diagram of an embodiment of the present utility model;

[0020] Figure 2 This is a schematic structural diagram of an embodiment of the present utility model;

[0021] Figure 3 This is an exploded schematic diagram of an embodiment of the present utility model;

[0022] Figure 4 This is a cross-sectional structural diagram of an embodiment of the present utility model;

[0023] Figure 5 This is a schematic diagram of the assembly of an embodiment of the utility model;

[0024] Figure 6 This is a schematic diagram of the assembly of the adjustment disk part of the embodiment of the utility model.

[0025] Description of the marks in the figure:

[0026] Upper mold base 11, accommodating cavity 12, bottom plate 13, screw hole 14, first positioning hole 15, positioning rod 16, fixing seat 17, fixing plate 18, adjusting dial 21, stud 22, jack 23, sensor fixing seat 24, second positioning hole 25, torque element 26, thermal insulation seat 29, hot mold 31, upper mold cavity 32, spring steel ball 33, upper mold cover 34, placement port 35, placement hole 36, hard gasket 37, ruler 38. DETAILED DESCRIPTION

[0027] The embodiments and features of the embodiments in this application may be combined with each other unless there is a conflict. To further understand the features, technical means, specific objectives, and functions achieved by the present invention, and to analyze the advantages and spirit of the present invention, the following detailed description of the present invention in conjunction with the accompanying drawings and specific embodiments will provide a further understanding of the present invention.

[0028] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "front," "rear," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

[0029] Please refer to the accompanying drawings. The utility model includes an upper mold base 11. The upper mold base 11 is provided with a accommodating cavity 12 with a downward opening. The bottom of the accommodating cavity 12 is provided with a bottom plate 13. The bottom plate 13 is located on the top of the upper mold base 11. A through screw hole 14 is opened in the middle of the bottom plate 13; a group of matching symmetrical first positioning holes 15 are opened on the downward side of the bottom plate 13, and the first positioning holes 15 are located on both sides symmetrically of the screw holes 14.

[0030] Furthermore, in one embodiment, a fixing base 17 is provided on the upper die base 11. Fixing plates 18 extending toward the upper die base 11 are provided on either side of the fixing base 17, with an opening formed between the fixing plates 18. A scale 38 is provided on the outer wall of the fixing base 17, located above the opening between the fixing plates 18. An adjustment dial 21 is provided on the side of the fixing base 17 facing the upper die base 11, located between the fixing plates 18. Studs 22 are provided on the adjustment dial 21, corresponding to the screw holes 14, and are threadedly connected to the screw holes 14.

[0031] The outer wall of the adjustment dial 21 is provided with a number of evenly spaced insertion holes 23, located in the opening between the two side fixing plates 18. A hard gasket 37 is provided between the adjustment dial 21 and the upper die base 11. The hard gasket 37 is placed over the stud 22 and is positioned adjacent to the top surface of the bottom plate 13 of the upper die base 11. The side of the adjustment dial 21 facing the hard gasket 37 is provided with a number of evenly spaced placement holes 36, located outside the stud 22 and offset from the insertion holes 23. A spring steel ball 33 is positioned in the placement hole 36, with the lower end of the spring steel ball 33 extending outside the placement hole 36 and abutting against the hard gasket 37.

[0032] Furthermore, in one embodiment, a sensor mount 24 is provided at the end of the stud 22 away from the mounting base 17. The sensor mount 24 is disposed within the accommodating cavity 12 of the upper mold base 11 and is positioned adjacent to the base plate 13. A second positioning hole 25 is defined in the sensor mount 24, corresponding to the first positioning hole 15. Positioning rods 16 are provided in the first and second positioning holes 15, 25. One end of the positioning rod 16 is disposed in the first positioning hole 15, and the other end of the positioning rod 16 is disposed in the second positioning hole 25. The stud 22 drives the sensor mount 24 to move up and down, and the positioning rods 16 enable the sensor mount 24 to be raised and lowered vertically.

[0033] A torsion element 26 is provided on the side of the sensor fixing seat 24 away from the stud 22, and a thermal break seat 29 is provided on the end of the torsion element 26 away from the sensor fixing seat 24. A thermal mold 31 is provided on the end of the thermal break seat 29 away from the torsion element 26, and a downwardly protruding upper mold cavity 32 is provided in the middle of the thermal mold 31.

[0034] Furthermore, in one embodiment, an upper mold cover 34 is provided on a side of the upper mold base 11 away from the fixing base 17 , a placement opening 35 is provided on a bottom side of the upper mold cover 34 away from the upper mold base 11 , and the upper mold cavity 32 is disposed in the placement opening 35 .

[0035] Spring steel ball 33: The spring pushes the steel ball. The steel ball is for easy rotation, and the spring pushes up and down.

[0036] The utility model discloses a rapid mold gap adjustment structure for a vulcanizer. The height of the inner core (sensor fixing seat 24→upper mold cavity 32) of the vulcanizer is adjusted by inserting an iron rod into a socket 23 on an adjusting turntable 21. The adjusting turntable 21 is rotated to rotate the lifting and lowering threaded engaging teeth of the adjusting turntable 21 and the upper mold seat 11 (i.e., the stud 22 and the screw hole 14). Then, the entire inner core (from the upper mold cavity 32 to the torque element 26) is moved up and down, thereby conveniently adjusting the height of the mold core (upper mold cavity 32) by lifting and lowering to achieve the gap thickness required by the sample.

[0037] After the stud 22 (screw thread) is rotated, raised, and lowered to be tightened, the spring steel ball 33 between the adjusting dial 21 and the hard gasket 37 is pressed against the adjacent surfaces of the adjusting dial 21 and the hard gasket 37 by the spring steel ball 33, maintaining a certain tension between the upper and lower surfaces, so that the upper die base 11 and the adjusting dial 21 are locked to prevent loosening.

[0038] The above embodiments only express several preferred implementation methods of the present invention, and the description thereof is relatively specific and detailed. It should be understood that the present invention is not limited to the forms disclosed herein and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the utility model concept described herein through the above teachings or the technology or knowledge in the relevant fields, and cannot be understood as limiting the scope of the present invention. It should be pointed out that for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention. The changes and modifications made by those in this field do not depart from the spirit and scope of the present invention, and all of these belong to the scope of protection of the claims attached to the present invention. Therefore, the scope of protection of the utility model patent shall be based on the attached claims.

Claims

1. A gap adjustment structure for a vulcanizer, comprising: An upper die base (11), wherein a downwardly opening accommodating cavity (12) is provided on the upper die base (11), and a bottom plate (13) is provided at the bottom of the accommodating cavity (12); the bottom plate (13) is characterized in that the bottom plate (13) is located at the top of the upper die base (11), and a through screw hole (14) is provided in the middle of the bottom plate (13); A fixing seat (17) is provided on the upper die seat (11), and fixing plates (18) extending toward the upper die seat (11) are provided on both sides of the fixing seat (17); an adjusting dial (21) is provided on one side of the fixing seat (17) facing the upper die seat (11), and the adjusting dial (21) is located between the fixing plates (18) on both sides. A stud (22) matching the screw hole (14) is provided on the adjusting dial (21), and the stud (22) is threadedly connected to the screw hole (14); A plurality of evenly distributed insertion holes (23) are provided on the outer side wall of the regulating turntable (21).

2. The gap adjustment structure of a vulcanizer according to claim 1, characterized in that: A hard gasket (37) is provided between the adjusting turntable (21) and the upper die seat (11), the hard gasket (37) is sleeved on the stud (22), and the hard gasket (37) is arranged adjacent to the top surface of the bottom plate (13) of the upper die seat (11); A plurality of evenly distributed placement holes (36) are provided on one side of the adjusting turntable (21) facing the hard gasket (37). The placement holes (36) are arranged on the outside of the stud (22). The placement holes (36) and the insertion holes (23) are staggered. A spring steel ball (33) is provided in the placement hole (36). The lower end of the spring steel ball (33) extends outside the placement hole (36). The lower end of the spring steel ball (33) is tightly pressed against the hard gasket (37).

3. The gap adjustment structure of a vulcanizer according to claim 1, characterized in that: An opening is formed between the fixing plates (18) on both sides of the fixing seat (17), and a scale (38) is provided on the outer side wall of the fixing seat (17), and the scale (38) is located above the opening between the fixing plates (18) on both sides; The insertion hole (23) of the adjustment rotary disk (21) is located in the opening between the fixing plates (18) on both sides.

4. The gap adjustment structure of a vulcanizer according to claim 1, characterized in that: A group of matching symmetrical first positioning holes (15) are opened on the downward side of the bottom plate (13), and the first positioning holes (15) are located on two symmetrical sides of the screw hole (14).

5. The gap adjustment structure of a vulcanizer according to claim 4, characterized in that: A sensor fixing seat (24) is provided at one end of the stud (22) away from the fixing seat (17), the sensor fixing seat (24) is arranged in the accommodating cavity (12) of the upper mold seat (11), and the sensor fixing seat (24) is arranged adjacent to the bottom plate (13); A second positioning hole (25) is provided on the sensor fixing seat (24) and matches the first positioning hole (15). Positioning rods (16) are provided in the first positioning hole (15) and the second positioning hole (25). One end of the positioning rod (16) is arranged in the first positioning hole (15), and the other end of the positioning rod (16) is arranged in the second positioning hole (25).

6. The gap adjustment structure of a vulcanizer according to claim 5, characterized in that: A torsion element (26) is provided on one side of the sensor fixing seat (24) away from the stud (22); a heat-insulating seat (29) is provided on one end of the torsion element (26) away from the sensor fixing seat (24); a heat mold (31) is provided on one end of the heat-insulating seat (29) away from the torsion element (26); and a downwardly protruding upper mold cavity (32) is provided in the middle of the heat mold (31).

7. The gap adjustment structure of a vulcanizer according to claim 6, characterized in that: An upper die cover (34) is provided on a side of the upper die base (11) away from the fixed base (17), a placement opening (35) is provided on a bottom surface of the upper die cover (34) away from the upper die base (11), and the upper die cavity (32) is arranged in the placement opening (35).

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