Melt flow rate tester

Abstract

The utility model relates to the field of melt flow velocity detection, in particular to a melt flow velocity tester. The melt flow rate determinator comprises a determinator body, a feeding port is formed in the upper end of the determinator body, the melt flow rate determinator further comprises a discharging hopper, a feeding pipe is fixed to an outlet of the discharging hopper and extends into the feeding port, and a plurality of scraping rings are integrally connected to the circumferential inner wall of the feeding pipe; the auxiliary feeding mechanism is fixed to the tester body, the auxiliary feeding mechanism comprises a pressing rod, and the pressing rod can penetrate through the feeding pipe and extend into the feeding port; and the auxiliary cleaning piece is fixed to the discharging hopper, and the pressing rod penetrates through the auxiliary cleaning piece. According to the melt flow rate tester provided by the utility model, in the auxiliary feeding mechanism, the pressing rod is automatically controlled to move up and down, so that plastic raw materials are pounded into the device, and meanwhile, when the melt flow rate tester is matched with the discharging hopper for use, the raw materials can be prevented from being sputtered.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of melt flow rate detection, especially relates to a melt flow rate tester. BACKGROUND

[0002] The melt flow rate tester is an instrument for measuring the melt flow rate (MFR) or melt volume flow rate (MVR) of thermoplastic plastics at high temperature. It is widely used in the plastics industry for evaluating the flowability and processing performance of materials.

[0003] In the traditional tester, there is a feed port at the top position, through which granular plastics can be introduced, and then the plastic particles are melted for measurement. However, during the loading operation, a movable pressing rod is needed to pound the plastic particles into the tester, which is not only inefficient but also causes some melted plastic to stick to the pressing rod.

[0004] Therefore, it is necessary to provide a new melt flow rate tester to solve the above technical problems. SUMMARY

[0005] To solve the above technical problems, the utility model provides a melt flow rate tester.

[0006] The melt flow rate tester provided by the utility model comprises a tester body, a feed port at the upper end of the tester body, and the following components:

[0007] A lower hopper is provided with a feed pipe fixed at the outlet, the feed pipe extends into the feed port, and a plurality of scraper rings are integrally connected to the circumferential inner wall of the feed pipe.

[0008] An auxiliary loading mechanism is fixed to the tester body, comprising a pressing rod that can penetrate the feed pipe and extend into the feed port.

[0009] An auxiliary cleaning piece is fixed to the lower hopper, and the pressing rod penetrates the auxiliary cleaning piece and wipes off the excess material stuck on the pressing rod through the auxiliary cleaning piece.

[0010] Preferably, a buffer pad is bonded to the inner wall of the lower hopper, and the buffer pad is a silica gel pad.

[0011] Preferably, the pressing rod penetrates the inside of the feed pipe concentrically, and the spacing between the circumferential outer wall of the pressing rod and the scraper ring is less than 1 mm.

[0012] Preferably, the auxiliary feeding mechanism further comprises a first mounting frame fixed to the body of the tester, a hydraulic cylinder fixed on the first mounting frame, an output end of the hydraulic cylinder vertically facing upward, a connecting disc fixed on the output end of the hydraulic cylinder, and a pressing rod fixed on the connecting disc and driven by the hydraulic cylinder to move in the vertical direction.

[0013] Preferably, the auxiliary cleaning member comprises a second mounting frame fixed to the inner wall of the hopper, a fixed ring fixed on the second mounting frame, and a cleaning cotton ring fixed in the fixed ring.

[0014] Preferably, the pressing rod is concentrically arranged through the fixed ring and can contact the cleaning cotton ring.

[0015] Compared with the related art, the melt flow rate tester has the following beneficial effects:

[0016] In the melt flow rate tester, the auxiliary feeding mechanism is automatically controlled to move the pressing rod up and down, so that the plastic raw material is pounded into the device, and when the hopper is used, the raw material can be prevented from being splashed. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 The structure diagram of a preferred embodiment of the melt flow rate tester is shown.

[0018] Figure 2 The structure diagram of the hopper is shown.

[0019] Figure 3 The structure diagram of the auxiliary feeding mechanism is shown.

[0020] Figure 4 The structure diagram of the auxiliary cleaning member is shown.

[0021] In the drawings, 1 is the body of the tester, 2 is the hopper, 21 is the feeding pipe, 22 is the buffer pad, 23 is the scraping ring, 3 is the auxiliary feeding mechanism, 31 is the first mounting frame, 32 is the hydraulic cylinder, 33 is the connecting disc, 34 is the pressing rod, 4 is the auxiliary cleaning member, 41 is the second mounting frame, 42 is the fixed ring, and 43 is the cleaning cotton ring. DETAILED DESCRIPTION

[0022] In the description of the utility model, it is necessary to understand that the orientation or positional relation indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like is the orientation or positional relation based on the orientation or positional relation shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as a limitation on the utility model that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0023] In the description of the utility model, the meaning of "multiple" is two or more than two, unless otherwise explicitly specified and limited.

[0024] In the description of the utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "mounting", "provided with", "sleeved / connected", "connected" and the like should be understood in a broad sense, for example, "connected" can be fixedly connected, can be detachably connected, or integrally connected; can be mechanically connected, can be electrically connected; can be directly connected, can be indirectly connected through an intermediate medium, and can be connected inside two elements. For ordinary skilled persons in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0025] In order to make the purpose, technical scheme and advantages of the utility model more clear and explicit, the utility model will be further described in detail below in combination with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the utility model and are not used to limit the utility model.

[0026] The specific implementation of the utility model is described in detail below in combination with specific examples.

[0027] Please refer to Figures 1 to 4 The utility model embodiment provides a melt flow rate tester, the melt flow rate tester includes tester body 1, has feed inlet on the tester body 1 upper end, still includes:

[0028] The outlet of the lower hopper 2 is fixed with a feeding pipe 21, the feeding pipe 21 extends to the inside of the feed inlet, and a plurality of scraper rings 23 are integrally connected on the circumferential inner wall of the feeding pipe 21.

[0029] The auxiliary feeding mechanism 3 is fixed on the tester body 1, and the auxiliary feeding mechanism 3 includes a pressing rod 34, which can penetrate the feeding pipe 21 and extend to the inside of the feed inlet.

[0030] The auxiliary cleaning piece 4 is fixed on the lower hopper 2, the pressing rod 34 penetrates through the auxiliary cleaning piece 4, and the auxiliary cleaning piece 4 wipes off the residual materials adhered to the pressing rod 34.

[0031] It should be noted that, in the device, the lower hopper 2 is installed at the feeding port position, the plastic raw materials can be better guided into the feeding port by the lower hopper 2, and the feeding operation is more convenient; meanwhile, the auxiliary feeding mechanism 3 is arranged at the feeding port position, the pressing rod 34 is used as the main pressing structure in the auxiliary feeding mechanism 3, and the pressing rod 34 can be automatically controlled to move up and down, so that the feeding operation is more convenient.

[0032] A plurality of scraping rings 23 are further arranged in the feeding pipe 21, and the plastic raw materials adhered to the pressing rod 34 can be scraped off by the scraping rings 23 during the extraction of the pressing rod 34, so that the pressing rod 34 is cleaned, and the waste of raw materials is avoided.

[0033] When the pressing rod 34 rises to the inside of the lower hopper 2, the pressing rod 34 can be directly contacted with the auxiliary cleaning piece 4, so that the pressing rod 34 is further cleaned by the auxiliary cleaning piece 4.

[0034] In the embodiment of the utility model, please refer to Figure 2 A buffer pad 22 is further attached to the inner wall of the lower hopper 2, and the buffer pad 22 is a silica gel pad.

[0035] It should be noted that, the buffer pad 22 is arranged in the lower hopper 2, so that the buffer pad 22 can play a buffering role when the plastic particles are poured into the lower hopper 2, and the raw materials are prevented from splashing out of the lower hopper 2.

[0036] In the embodiment of the utility model, please refer to Figure 1 and Figure 2 The pressing rod 34 penetrates through the inside of the feeding pipe 21 concentrically, and the spacing between the circumferential outer wall of the pressing rod 34 and the scraping ring 23 is less than 1 mm.

[0037] It should be noted that, the scraping ring 23 is made of metal material, so that the scraping ring 23 cannot be contacted with the pressing rod 34, the scratching between the scraping ring 23 and the pressing rod 34 is avoided, and the service life of the device is improved; meanwhile, the spacing between the pressing rod 34 and the scraping ring 23 is shortened, and the cleaning effect of the pressing rod 34 is improved.

[0038] In the embodiment of the utility model, please refer to Figure 3 The auxiliary feeding mechanism 3 further comprises a first mounting frame 31, the first mounting frame 31 is fixed on the measuring instrument body 1, a hydraulic cylinder 32 is fixed on the first mounting frame 31, the output end of the hydraulic cylinder 32 is vertically oriented, a connecting disc 33 is fixed, and the pressing rod 34 is fixed on the connecting disc 33, so that the pressing rod 34 is driven to move in the vertical direction by the hydraulic cylinder 32.

[0039] It should be noted that: auxiliary feeding mechanism 3, the pressing rod 34 is fixed to the output end of the hydraulic cylinder 32 through the connecting disc 33, so that the pressing rod 34 can be directly controlled by the hydraulic cylinder 32 to move up and down, so that the raw material is introduced into the body 1 of the tester by the pressing rod 34.

[0040] In the embodiment of the utility model, please refer to Figure 4 , the auxiliary cleaning part 4 includes a second mounting frame 41, and the second mounting frame 41 is fixed to the inner wall of the lower hopper 2, and a fixing ring 42 is further fixed on the second mounting frame 41, and a cleaning cotton ring 43 is fixed in the fixing ring 42.

[0041] Wherein, the pressing rod 34 is concentrically penetrated through the fixing ring 42 and can be in contact with the cleaning cotton ring 43.

[0042] It should be noted that: the pressing rod 34 passes through the cleaning cotton ring 43, so that the pressing rod 34 can be directly contacted with the cleaning cotton ring 43 in the process of moving up and down, so that the pressing rod 34 can be further cleaned by the cleaning cotton ring 43.

[0043] The circuit and control involved in the utility model are prior art, and will not be described in detail here.

[0044] The above is only an embodiment of the utility model, and does not limit the patent range of the utility model, and any equivalent structure or equivalent process conversion using the contents of the utility model specification and drawings, or direct or indirect application in other related technical fields, are also included in the patent protection range of the utility model.

Claims

1. A melt flow rate tester, comprising a tester body (1), with a feed port at the upper end of the tester body (1), characterized in that: Also includes: A lower hopper (2), wherein a feed pipe (21) is fixed at the outlet of the lower hopper (2), the feed pipe (21) extends into the interior of the feed port, and a plurality of scraper rings (23) are integrally connected to the circumferential inner wall of the feed pipe (21); An auxiliary feeding mechanism (3), the auxiliary feeding mechanism (3) being fixed to the measuring instrument body (1), the auxiliary feeding mechanism (3) comprising a pressure rod (34), the pressure rod (34) being capable of penetrating the feeding pipe (21) and extending to the interior of the feeding port; An auxiliary cleaning member (4) is fixed on the lower hopper (2), and the pressure rod (34) passes through the auxiliary cleaning member (4) and wipes off the residual material stuck on the pressure rod (34) through the auxiliary cleaning member (4).

2. The melt flow rate tester according to claim 1, characterized in that A buffer pad (22) is also bonded to the inner wall of the lower hopper (2), and the buffer pad (22) is a silicone pad.

3. The melt flow rate tester according to claim 1, characterized in that The pressure rod (34) concentrically penetrates the interior of the feeding tube (21), and the distance between the circumferential outer wall of the pressure rod (34) and the scraper ring (23) is less than 1 mm.

4. The melt flow rate tester according to claim 1, characterized in that The auxiliary feeding mechanism (3) further comprises a first mounting frame (31), the first mounting frame (31) being fixed on the measuring instrument body (1), a hydraulic cylinder (32) being fixed on the first mounting frame (31), an output end of the hydraulic cylinder (32) being vertically oriented and fixed with a connecting disk (33), and the pressure rod (34) being fixed on the connecting disk (33), and the pressure rod (34) being driven by the hydraulic cylinder (32) to move in a vertical direction.

5. The melt flow rate tester according to claim 1, characterized in that The auxiliary cleaning member (4) comprises a second mounting frame (41), the second mounting frame (41) being fixed to the inner wall of the lower hopper (2), a fixing ring (42) being fixed to the second mounting frame (41), and a cleaning cotton ring (43) being fixed inside the fixing ring (42).

6. The melt flow rate tester according to claim 1, characterized in that The pressure rod (34) concentrically passes through the fixing ring (42) and can be in contact with the cleaning cotton ring (43).

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