Rapid feeding device for torque rheometer

Abstract

The utility model discloses a rapid feeding device for a torque rheometer. The rapid feeding device comprises a vertical arm fixing base, a vertical arm, a gear bin, a gear assembly, a pressing rod, a feeding bin and a pressing pestle. The vertical arm fixing seat is fixed at a specified position of the rheometer; the vertical arm is arranged above the vertical arm fixing seat; the gear bin is arranged at the upper end of the vertical arm; the gear assembly comprises a rotating gear, a gear shaft, a rotating bearing and a rotating wheel; the two ends of the gear shaft are rotationally supported on the bin walls of the two sides of the gear bin through rotating bearings. The rotating gear fixedly sleeves the periphery of the gear shaft; the rotating wheel is fixed at one end of the rotating shaft extending out of the gear bin; a through hole is formed in the gear bin; a transmission rack is formed on the pressing rod; the pressing pestle is mounted at the lower end of the pressing rod; the feeding bin is installed on the rheometer, and a feeding port of the feeding bin corresponds to the pressing pestle. According to the rapid feeding device for the torque rheometer, the feeding speed of materials fed into the feeding port of the rheometer can be manually controlled, and the materials cannot be blocked or returned.

Description

Technical Field

[0001] The utility model relates to a rapid feeding device for a torque rheometer. Background Art

[0002] The torque rheometer is a device used to study the shear, plasticization, rheology and other properties of resin materials. By adding materials to the shear chamber, the double cones rotate to produce shear, thereby recording the temperature and torque changes and drawing the torque and temperature curve. In the actual test process, if material developers want to make a better comparative test, they require that the feeding section of the curve has as high a coincidence as possible. At this stage, the feeding method of torque rheometers adopts natural feeding, that is, after the material is added to the hopper, it naturally enters the shear chamber by gravity or the experimenter uses a pressure rod to assist in pressing it into the shear chamber.

[0003] The existing solution has the following defects:

[0004] (1) The natural feeding method has a slow feeding speed. The material entering the shear chamber at the front has already started to plasticize, while the material at the back has not yet entered the shear chamber. It is impossible to control the materials of each group of tests to be completely added to the shear chamber at the same time. The curve drawn has poor repeatability in the feeding and melting section, and cannot be compared and analyzed. (2) Although the feeding speed of the method assisted by the experimenter using a pressure rod is faster than the speed of natural gravity feeding, when encountering materials with uneven particle sizes or easily softened materials, the particles are easily stuck in the feeding hopper, resulting in difficulty in controlling the same time for each feeding. The feeding section of the curve is still difficult to achieve good repeatability, and cannot be compared and analyzed. Utility Model Content

[0005] The utility model provides a fast feeding device for a torque rheometer to solve the above-mentioned technical problems, and specifically adopts the following technical solutions:

[0006] A fast feeding device for a torque rheometer, comprising: a vertical arm fixing seat, a vertical arm, a gear bin, a gear assembly, a pressure rod, a feed bin mounted on the rheometer, and a pressing pestle for pressing the material in the feed bin into the rheometer; the vertical arm fixing seat is fixed to a designated position of the rheometer; the vertical arm is arranged above the vertical arm fixing seat; the gear bin is arranged at the upper end of the vertical arm; the gear assembly comprises: a rotating gear, a gear shaft, a rotating bearing and a rotating wheel; the two ends of the gear shaft are rotatably supported on both sides of the gear bin through the rotating bearing The wall of the bin; the rotating gear is fixedly sleeved on the outer periphery of the gear shaft; the rotating wheel is fixed to one end of the rotating shaft extending out of the gear bin; the gear bin is formed with a through hole for the upper end of the pressure rod total gear bin to enter and pass through the lower end of the gear bin; the pressure rod is formed with a transmission rack; the transmission rack is meshed and connected with the rotating gear when the pressure rod moves up and down; the pressing pestle is installed at the lower end of the pressure rod; the feed bin is installed on the rheometer and its feed port is correspondingly arranged with the pressing pestle; the pressing pestle is arranged to fit the feed channel of the feed bin when pressed into the feed bin.

[0007] Furthermore, a counterweight for improving the efficiency of pressing the material is detachably mounted on the upper end of the pressing rod.

[0008] Furthermore, a sleeve hole for matching the upper end of the pressure rod is formed on the lower side of the counterweight; the counterweight is detachably sleeved on the upper end of the pressure rod through the sleeve hole.

[0009] Furthermore, the pressure rod is formed with a lower limit hole; the warehouse wall of the gear warehouse is formed with a through hole; a limit pin for limiting the pressure pestle to be located at the upper end of the feed warehouse is inserted in the through hole; the limit pin corresponds to the lower limit hole when the rotating gear is engaged with the end of the transmission rack.

[0010] Furthermore, the pressing rod is formed with an upper limit hole; the limit pin corresponds to the upper limit hole when the rotating gear is engaged with the upper end of the transmission rack, so as to limit the position of the pressing pestle relative to the feed bin when the pressing pestle is pressed into a specified position of the feed bin.

[0011] Furthermore, a concave pressing surface for gathering and pressing clean materials is formed on one side of the pressing pestle for contacting the materials.

[0012] Furthermore, the pressing pestle is formed with an internal thread hole; the lower end of the pressing rod is formed with an external thread connection part; the pressing pestle is screwed into the internal thread hole through the external thread connection part, and is detachably mounted on the lower end of the pressing rod.

[0013] Furthermore, the vertical arm, the vertical arm fixing seat and the gear compartment are designed as an integrated whole.

[0014] Furthermore, a handle is provided on one side of the rotating wheel for a staff member to manually rotate the rotating wheel.

[0015] Furthermore, the vertical arm fixing seat is formed with a plurality of fixing holes; the vertical arm fixing seat is fixed to a designated position of the rheometer by screws passing through the fixing holes.

[0016] The utility model is beneficial in that the fast feeding device for the torque rheometer provided adopts an active material pressing method, so that the feeding speed of the material added to the feeding port of the rheometer can be manually controlled and will not get stuck. This solution can realize the up and down movement of the pressing pestle by rotating the rotating wheel. The operation method is simple, the pressing speed is controllable, and the feeding section of the curve after the experiment is completed has high repeatability. Compared with the traditional feeding method, the device can be used to quickly add materials, and the pressing pestle will prevent the material from returning in the shear bin of the rheometer. It can solve the problem that the existing torque rheometer is difficult to add materials quickly and at the same time when adding materials, resulting in low repeatability and poor comparability of the curve feeding section. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0018] Figure 1 It is a structural schematic diagram of a rapid feeding device for a torque rheometer involved in the present application;

[0019] Figure 2 yes Figure 1 A schematic diagram of another perspective of a fast feeding device for a torque rheometer;

[0020] A quick feeding device 10 for a torque rheometer, a vertical arm fixing seat 11, a fixing hole 111, a vertical arm 12, a gear bin 13, a through hole 131, a through hole 132, a rotating gear 14, a gear shaft 15, a rotating bearing 16, a rotating wheel 17, a pressure rod 18, a transmission rack 181, a lower limit hole 182, an upper limit hole 183, an external threaded connection part (not shown), a feed bin 19, a feed channel 191, a pressing pestle 20, a pressing concave surface 201, an internal threaded hole (not shown), a counterweight 21, a sleeve hole 211, a handle 22, and a limit pin 23. DETAILED DESCRIPTION

[0021] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0022] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0024] like Figure 1 and Figure 2 As shown, a fast feeding device 10 for a torque rheometer of the present application comprises: an arm fixing seat 11, an arm 12, a gear bin 13, a gear assembly, a pressure rod 18, a feed bin 19 mounted on the rheometer, and a pressing pestle 20 for pressing the material in the feed bin 19 into the rheometer. During installation, the arm fixing seat 11 is fixed to a specified position of the rheometer, the arm 12 is arranged above the arm fixing seat 11, and the gear bin 13 is arranged at the upper end of the arm 12. The above-mentioned gear assembly comprises: a rotating gear 14, a gear shaft 15, a rotating bearing 16 and a rotating wheel 17, the two ends of the gear shaft 15 are rotatably supported on the bin walls on both sides of the gear bin 13 through the rotating bearings 16, the rotating gear 14 is fixedly sleeved on the outer periphery of the gear shaft 15, and the rotating wheel 17 is fixed to one end of the rotating shaft extending out of the gear bin 13. The gear bin 13 is formed with a through hole 131 for the upper end of the pressure rod 18 to enter the gear bin 13 and pass through the lower end of the gear bin 13. The pressure rod 18 is formed with a transmission rack 181, which is meshed and connected with the rotating gear 14 when the pressure rod 18 moves up and down. The pressing pestle 20 is installed at the lower end of the pressure rod 18, and the feed bin 19 is installed on the rheometer and its feed port is correspondingly arranged with the pressing pestle 20. When the pressing pestle 20 is pressed into the feed bin 19, it is arranged in close contact with the feed channel 191 of the feed bin 19.

[0025] As a specific implementation, a counterweight 21 for improving the efficiency of pressing the material is detachably mounted on the upper end of the pressing rod 18. This solution uses the lever principle by using the rotating wheel 17 to drive the gear meshing transmission, and the weight makes the pressing process easy and efficient, and can ensure that each feeding is completed in a very short time.

[0026] Furthermore, a sleeve hole 211 is formed on the lower side of the counterweight 21 for matching the upper end of the pressure rod 18. The counterweight 21 can be detachably mounted on the upper end of the pressure rod 18 through the sleeve hole 211, so that it is convenient to replace the appropriate counterweight 21 according to different situations, and the versatility is higher.

[0027] As a specific embodiment, the pressing rod 18 is formed with a lower limit hole 182, and the wall of the gear bin 13 is formed with a through hole 132, and a limit pin 23 is inserted in the through hole 132 to limit the pressing pestle 20 to be located at the upper end of the feed bin 19. The limit pin 23 corresponds to the lower limit hole 182 when the rotating gear 14 is engaged with the end of the transmission rack 181. At this time, the limit pin 23 is inserted into the lower limit hole 182 to limit the pressing pestle 20 above the feed bin 19, and the material can be put into the feed bin 19.

[0028] Furthermore, the pressing rod 18 is formed with an upper limit hole 183, and the limit pin 23 corresponds to the upper limit hole 183 when the rotating gear 14 is engaged with the upper end of the transmission rack 181. At this time, by inserting the limit pin 23 into the upper limit hole 183, the position of the pressing pestle 20 relative to the feed bin 19 can be limited when the pressing pestle 20 is pressed into the specified position of the feed bin 19, thereby preventing the material in the feed port of the rheometer from returning through the pressing pestle 20.

[0029] As a specific implementation manner, a pressing concave surface 201 is formed on one side of the pressing pestle 20 for contacting the material, which is used to gather and press the material, thereby improving the effectiveness of pressing the material.

[0030] As a specific embodiment, the pressing pestle 20 is formed with an internal thread hole, and the lower end of the pressing rod 18 is formed with an external thread connection portion, and the pressing pestle 20 is screwed into the internal thread hole through the external thread connection portion, and is detachably mounted on the lower end of the pressing rod 18. This facilitates the installation of the pressing pestle 20, and also facilitates the replacement of the pressing pestle 20 adapted to the feed port of different rheometers, thereby improving the versatility of use.

[0031] As a specific implementation, the vertical arm 12, the vertical arm fixing seat 11 and the gear compartment 13 are designed as an integrated whole, and the structural strength is high.

[0032] As a specific implementation, a handle 22 is provided on one side of the rotating wheel 17 for a worker to manually rotate the rotating wheel 17, making the operation more convenient.

[0033] In the above scheme, in addition to manually rotating the wheel 17 to drive the pressure rod 18 to move up and down, an electric structure can also be optionally installed, that is, the gear shaft 15 is connected to the motor shaft, and the feeding speed can be controlled by controlling the speed of the motor, making the feeding process more stable and reliable.

[0034] As a specific implementation, the vertical arm fixing seat 11 is formed with a plurality of fixing holes 111. The vertical arm fixing seat 11 is fixed to a designated position of the rheometer by screws passing through the fixing holes 111, and the installation structure is simple and fast.

[0035] When the fast feeding device 10 for the torque rheometer of the present solution is used, the limiter inserted into the upper limit hole 183 is first pulled out, and the handle 22 is grasped to rotate the rotating wheel 17 clockwise, and the rotating wheel 17 rotates together with the gear shaft 15 and the rotating gear 14, and the entire pressing rod 18 is raised through the meshing relationship between the rotating gear 14 and the transmission rack 181. When the pressing rod 18 is raised to the specified position in conjunction with the pressing pestle 20, the limit pin 23 is pressed to insert the limit pin 23 into the lower limit hole 182, and the position of the pressing rod 18 is fixed at this time, that is, the position of the pressing pestle 20 is fixed. At this time, add material to the feed bin 19, then pull out the limit pin 23 in the lower limit hole 182, and quickly rotate the wheel 17 in the counterclockwise direction. At this time, the entire pressure rod 18 moves downward under the drive of the rotating gear 14, and finally the pressing pestle 20 is accurately pressed into the feed channel 191 of the feed bin 19. Then continue to rotate the wheel 17 to quickly press the material into the shear bin of the rheometer. After the pressure rod 18 is completely pressed into the feed channel 191, press the limit pin 23 to insert it into the upper limit hole 183, which can prevent the pressure rod 18 from being lifted up again by the material in the shear bin, thereby preventing the material from returning.

[0036] The above-mentioned fast feeding device 10 for the torque rheometer adopts an active material pressing method, so that the feeding speed of the material added to the feeding port of the rheometer can be manually controlled and will not get stuck. This solution can realize the up and down movement of the pressing pestle 20 by rotating the rotating wheel 17. The operation method is simple, the pressing speed is controllable, and the feeding section of the curve after the experiment is completed has high repeatability. Compared with the traditional feeding method, the material can be quickly added by using this device, and the pressing pestle 20 will prevent the material from returning in the shear bin of the rheometer, which can solve the problem that the existing torque rheometer is difficult to add materials quickly and at the same time when adding materials, resulting in low repeatability and poor comparability of the curve feeding section.

[0037] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the above embodiments do not limit the utility model in any form, and any technical solution obtained by equivalent replacement or equivalent transformation falls within the protection scope of the utility model.

Claims

1. A rapid feeding device for a torque rheometer, characterized in that: include: A vertical arm fixing seat, a vertical arm, a gear bin, a gear assembly, a pressure rod, a feed bin installed on the rheometer, and a pressing pestle for pressing the material in the feed bin into the rheometer; The vertical arm fixing seat is fixed at a designated position of the rheometer; The vertical arm is arranged above the vertical arm fixing seat; The gear bin is arranged at the upper end of the vertical arm; The gear assembly comprises: a rotating gear, a gear shaft, a rotating bearing and a rotating wheel; The two ends of the gear shaft are rotatably supported on the warehouse walls on both sides of the gear warehouse through the rotating bearings; The rotating gear is fixedly sleeved on the outer periphery of the gear shaft; The rotating wheel is fixed to one end of the rotating shaft extending out of the gear compartment; The gear bin is formed with a through hole for the pressure rod to enter the upper end of the gear bin and pass through the lower end of the gear bin; The pressure rod is formed with a transmission rack; The transmission rack is meshed and connected with the rotating gear when the pressure rod moves up and down; The pressing pestle is installed at the lower end of the pressing rod; The feed bin is installed on the rheometer and its feed port is arranged corresponding to the pressing pestle; The pressing pestle is arranged to fit the feeding channel of the feeding bin when pressed into the feeding bin.

2. The rapid feeding device for a torque rheometer according to claim 1, characterized in that: The upper end of the pressing rod is detachably provided with a counterweight for improving the efficiency of pressing the material.

3. The rapid feeding device for a torque rheometer according to claim 2, characterized in that: The lower side of the counterweight is formed with a sleeve hole for matching the upper end of the pressure rod; The counterweight is detachably sleeved on the upper end of the pressure rod through the sleeve hole.

4. The rapid feeding device for a torque rheometer according to claim 1, characterized in that: The pressure rod is formed with a lower limit hole; The gear bin wall is formed with perforations; A limit pin for limiting the pressing pestle to be located at the upper end of the feed bin is inserted in the through hole; The limiting pin corresponds to the lower limiting hole when the rotating gear is meshed with the end of the transmission rack.

5. The rapid feeding device for a torque rheometer according to claim 4, characterized in that: The pressure rod is formed with an upper limit hole; The limit pin corresponds to the upper limit hole when the rotating gear is meshed with the upper end of the transmission rack, so as to limit the position of the pressing pestle relative to the feed bin when the pressing pestle is pressed into a specified position of the feed bin.

6. The rapid feeding device for a torque rheometer according to claim 1, characterized in that: A concave pressing surface for gathering and pressing clean materials is formed on one side of the pressing pestle for contacting the materials.

7. The rapid feeding device for a torque rheometer according to claim 1, characterized in that: The punch is formed with an internal thread hole; The lower end of the pressure rod is formed with an external thread connection portion; The pressing pestle is screwed into the internal thread hole through the external thread connection part, and is detachably mounted on the lower end of the pressing rod.

8. The rapid feeding device for a torque rheometer according to claim 1, characterized in that: The vertical arm, the vertical arm fixing seat and the gear compartment are designed as one piece.

9. The rapid feeding device for a torque rheometer according to claim 1, characterized in that: A handle is provided on one side of the rotating wheel for a staff to manually rotate the rotating wheel.

10. The rapid feeding device for a torque rheometer according to claim 1, characterized in that: The vertical arm fixing seat is formed with a plurality of fixing holes; The vertical arm fixing seat is fixed to a designated position of the rheometer by screws passing through the fixing holes.

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