Adjustable open mill

Abstract

The utility model relates to the technical field of plastic particle processing, and discloses an adjustable open mill which comprises a base and an adjustable transmission component, and two groups of mounting seats are rotationally connected with rotating rollers through rotating shafts. The adjustable transmission assembly comprises a transmission shaft rotationally connected to the base, a first shaft sleeve is rotationally connected to the connecting plate on one side and movably connected with the transmission shaft, and the first shaft sleeve is fixedly sleeved with a first bevel gear ring. A second shaft sleeve is rotationally connected to the connecting plate on the other side and fixedly arranged outside the transmission shaft in a sleeving mode, a second bevel gear ring is fixedly arranged outside the second shaft sleeve in a sleeving mode, bevel gears are coaxially and fixedly connected to one ends of the two sets of rotating rollers, and the two sets of bevel gears are in engaged connection with the first bevel gear ring and the second bevel gear ring correspondingly. According to the open mill disclosed by the utility model, the problem that the existing open mill can process plastic particles only by driving two groups of rotating rollers to rotate by virtue of two groups of driving sources is effectively solved, and the energy consumption is reduced.

Description

Technical Field

[0001] This utility model relates to the field of plastic granule processing technology, and in particular to an adjustable open mixing mill. Background Technology

[0002] Plastic granules are small granular substances made from plastic raw materials. They are typically obtained by melting the plastic raw materials in a melt mill, then cooling and cutting them through an extruder or pellet mill. Plastic granules are widely used in various processing techniques, such as injection molding, extrusion molding, and blow molding, to manufacture various plastic products. The processing of plastic granules requires refining, thus necessitating the use of a specialized open mill.

[0003] Chinese utility model patent CN220008423U discloses an open-type rubber mixing mill with adjustable roller spacing. This device moves a sliding clamping plate by moving a push rod within the inner cavity of the push tube. With the rotation of the rolling shaft, the sliding clamping plate can drive a second rotating roller to adjust its spacing along a groove. Regarding the aforementioned technology, the inventors believe the following drawbacks exist:

[0004] In actual use, the device lacks an integrated transmission structure, requiring two sets of drive sources to rotate two sets of rollers to process plastic granules. This increases the energy consumption of the device. Therefore, we provide an adjustable open mill. Utility Model Content

[0005] To address the problem in the prior art that existing open mills require two sets of drive sources to rotate two sets of rollers to process plastic granules, this invention provides an adjustable open mill.

[0006] This utility model is achieved by the following technical solution: an adjustable open mill, including a base and an adjustable transmission assembly, wherein two sets of mounting seats are movably connected and fixedly connected to the base, and each set of mounting seats is rotatably connected to a rotating roller via a rotating shaft.

[0007] The adjustable transmission assembly includes a transmission shaft rotatably connected to the base. One end of the transmission shaft is coaxially fixedly connected to a motor. Connecting plates are fixedly connected to both sets of mounting seats. A bushing 1 is rotatably connected to one side of the connecting plate and is movably connected to the transmission shaft. A bevel gear ring 1 is fixedly fitted on the outside of the bushing 1. A second bushing 2 is rotatably connected to the other side of the connecting plate and is fixedly fitted on the outside of the transmission shaft. A bevel gear ring 2 is fixedly fitted on the outside of the bushing 2. One end of both sets of rotating rollers is coaxially fixedly connected to a bevel gear, and the two sets of bevel gears are respectively meshed with bevel gear ring 1 and bevel gear ring 2. A lead screw is rotatably connected to one side of the mounting seat. A fixing plate is fixedly connected to the base and is threadedly connected to the lead screw.

[0008] As a further improvement to the above solution, a scraper is provided on one side of the rotating roller, and two sets of crossbars are symmetrically fixedly connected to one side of the scraper and are slidably connected to the mounting base. A spring is sleeved on the outside of the crossbar and one end of the spring is fixedly connected to the mounting base.

[0009] As a further improvement to the above solution, two sets of guide rods are symmetrically fixedly connected to the base, and a sliding frame is slidably connected to the outside of the guide rods, and the sliding frame is fixedly connected to a mounting base on one side.

[0010] As a further improvement to the above solution, the transmission shaft is symmetrically fixedly connected to a limiting strip, and the inner side of the bushing is provided with a limiting groove corresponding to the position of the limiting strip and is slidably connected to the limiting strip.

[0011] As a further improvement to the above solution, an anti-detachment plate is fixedly connected to the end of the crossbar, and the anti-detachment plate is fixedly connected to the other end of the spring.

[0012] As a further improvement to the above scheme, the scraper is in contact with the surface of the roller on the same side.

[0013] As a further improvement to the above solution, the length of the scraper is consistent with the length of the rotating roller.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] 1. This utility model uses a motor to drive the transmission shaft to rotate, which in turn drives bevel gear ring one and bevel gear ring two to rotate together. The meshing action between bevel gear ring one and bevel gear ring two and the bevel gear allows both sets of rollers to rotate inwards simultaneously, facilitating the processing of plastic granules. Furthermore, rotating the lead screw can push one side of the rollers closer to the other side, achieving adjustment. Simultaneously, during adjustment, the sliding fit between the limiting strip and the limiting groove allows the bushing one to slide outside the transmission shaft. This achieves roller spacing adjustment without affecting the normal transmission between the two sets of rollers, effectively avoiding the problem of existing open mills requiring two separate drive sources to rotate the two sets of rollers to process plastic granules. This reduces energy consumption, saves resources, and is highly practical.

[0016] 2. This utility model uses a scraper to remove plastic adhering to the surface of the rotating roller. By utilizing the sliding fit between the crossbar and the mounting base, and the elasticity of the spring itself, the scraper can always be in contact with the surface of the rotating roller, thus ensuring the cleaning effect on the rotating roller. At the same time, the scraping effect on the rotating roller is not affected by the movement of the rotating roller, further improving the practicality of the device. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 2 for Figure 1 Enlarged structural diagram at point A in the middle;

[0019] Figure 3 This is a three-dimensional schematic diagram of the scraper connection structure of this utility model.

[0020] Explanation of key symbols:

[0021] 1. Base; 2. Mounting seat; 3. Rotary roller; 101. Drive shaft; 102. Bushing 1; 103. Bevel gear ring 1; 104. Bushing 2; 105. Bevel gear ring 2; 106. Bevel gear; 107. Lead screw; 108. Guide rod; 109. Sliding frame; 110. Limiting strip; 201. Scraper; 202. Crossbar; 203. Spring. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0023] Example 1:

[0024] Please combine Figure 1-3An adjustable open mill according to this embodiment includes a base 1, on which two sets of mounting seats 2 are movably connected and fixedly connected respectively, and each set of mounting seats 2 is rotatably connected to a rotating roller 3 via a rotating shaft.

[0025] An adjustable transmission assembly for driving two sets of rotating rollers 3 to rotate simultaneously includes a transmission shaft 101 rotatably connected to a base 1. One end of the transmission shaft 101 is coaxially fixedly connected to a motor. Connecting plates are fixedly connected to both mounting bases 2. A bushing 102 is rotatably connected to one connecting plate and is movably connected to the transmission shaft 101. A bevel gear ring 103 is fixedly fitted around the outside of the bushing 102. A second bushing 104 is rotatably connected to the other connecting plate and is fixedly fitted around the outside of the transmission shaft 101. A bevel gear ring 105 is fixedly fitted around the outside of the bushing 104. A bevel gear 106 is coaxially fixedly connected to one end of each set of rotating rollers 3, and the two sets of bevel gears 106 are respectively connected to the bevel gear rings. A screw 107 is rotatably connected to a mounting base 2 on one side, and a fixing plate is fixedly connected to the base 1, with the fixing plate and the screw 107 being threadedly connected. Two sets of guide rods 108 are symmetrically fixedly connected to the base 1. A sliding frame 109 is slidably connected to the outside of the guide rods 108, and the sliding frame 109 is fixedly connected to the mounting base 2 on one side, which can play a certain guiding role for the horizontal movement of the roller 3 on one side. A limit strip 110 is symmetrically fixedly connected to the outside of the drive shaft 101. A limit groove is opened on the inner side of the bushing 102 corresponding to the position of the limit strip 110 and is slidably connected to the limit strip 110. While realizing the adjustment of the distance between the rollers 3, it will not affect the normal transmission between the two sets of rollers 3.

[0026] A scraper 201 is provided on one side of the rotating roller 3. Two sets of crossbars 202 are symmetrically fixedly connected to one side of the scraper 201 and are slidably connected to the mounting base 2. A spring 203 is sleeved on the outside of the crossbar 202 and one end of the spring 203 is fixedly connected to the mounting base 2. An anti-detachment plate is fixedly connected to the end of the crossbar 202 and is fixedly connected to the other end of the spring 203, which can prevent the crossbar 202 from detaching from the mounting base 2. The scraper 201 is in contact with the surface of the rotating roller 3 on the same side.

[0027] The implementation principle of an adjustable open mill in this embodiment is as follows: A motor drives the transmission shaft 101 to rotate, which in turn drives the second bevel gear ring 105 to rotate. Utilizing the limiting engagement between the limiting strip 110 and the limiting groove, the first bevel gear ring 103 also rotates simultaneously. Through the meshing engagement between the first bevel gear ring 103, the second bevel gear ring 105, and the bevel gear 106, both sets of rollers 3 rotate inwards simultaneously, facilitating the processing of plastic granules. By rotating the lead screw 107, and through the sliding engagement between the guide rod 108 and the sliding frame 109, one side of the roller 3 is pushed closer to the other side, thus achieving adjustment. Simultaneously, during the adjustment process, the sliding engagement between the limiting strip 110 and the limiting groove... This allows the bushing 102 to slide outside the transmission shaft 101, achieving adjustment of the distance between the rollers 3 without affecting the normal transmission between the two sets of rollers 3. This effectively avoids the problem that existing open mills require two drive sources to drive the two sets of rollers 3 to rotate independently in order to process plastic granules, reducing energy consumption, saving resources, and making it highly practical. The scraper 201 can scrape off the plastic adhering to the surface of the rotating rollers 3, and by utilizing the sliding cooperation between the crossbar 202 and the mounting base 2, and the elasticity of the spring 203, the scraper 201 can always be in contact with the surface of the rollers 3, thus ensuring the cleaning effect on the rollers 3. At the same time, the scraping effect on the rollers 3 is not affected by the movement of the rollers 3, further improving the practicality of the device.

[0028] Example 2:

[0029] This embodiment is an improvement on embodiment 1, in that the length of the scraper 201 is the same as the length of the rotating roller 3, which can ensure the thorough cleaning of the rotating roller 3.

[0030] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. An adjustable open mill, characterized in that, include: The base (1) has two sets of mounting seats (2) that are movably connected and fixedly connected to it, and each set of mounting seats (2) has a rotating roller (3) rotatably connected to it via a rotating shaft; An adjustable transmission assembly includes a transmission shaft (101) rotatably connected to a base (1). One end of the transmission shaft (101) is coaxially fixedly connected to a motor. Two sets of mounting seats (2) are fixedly connected to connecting plates. A bushing (102) is rotatably connected to one side of the connecting plate, and the bushing (102) is movably connected to the transmission shaft (101). A bevel gear ring (103) is fixedly fitted on the outside of the bushing (102). A bushing (104) is rotatably connected to the connecting plate on the other side. Furthermore, the bushing two (104) is fixedly sleeved on the outside of the transmission shaft (101), and the bushing two (104) is fixedly sleeved with a bevel gear ring two (105). One end of each of the two sets of rollers (3) is coaxially fixedly connected with a bevel gear (106), and the two sets of bevel gears (106) are respectively meshed with the bevel gear ring one (103) and the bevel gear ring two (105). A lead screw (107) is rotatably connected to the mounting base (2) on one side, and a fixing plate is fixedly connected to the base (1), and the fixing plate is threadedly connected to the lead screw (107).

2. An adjustable open mill as described in claim 1, characterized in that, A scraper (201) is provided on one side of the rotating roller (3). Two sets of crossbars (202) are symmetrically fixedly connected to one side of the scraper (201) and the crossbars (202) are slidably connected to the mounting base (2). A spring (203) is sleeved on the outside of the crossbars (202) and one end of the spring (203) is fixedly connected to the mounting base (2).

3. An adjustable open mill as described in claim 1, characterized in that, Two sets of guide rods (108) are symmetrically fixedly connected to the base (1). A sliding frame (109) is slidably connected to the outside of the guide rod (108), and the sliding frame (109) is fixedly connected to a mounting base (2) on one side.

4. An adjustable open mill as described in claim 1, characterized in that, The transmission shaft (101) is symmetrically fixedly connected to a limiting strip (110), and the inner side of the bushing (102) is provided with a limiting groove corresponding to the position of the limiting strip (110) and is slidably connected to the limiting strip (110).

5. An adjustable open mill as described in claim 2, characterized in that, The end of the crossbar (202) is fixedly connected to an anti-detachment plate, and the anti-detachment plate is fixedly connected to the other end of the spring (203).

6. An adjustable open mill as described in claim 2, characterized in that, The scraper (201) is in contact with the surface of the roller (3) on the same side.

7. An adjustable open mill as described in claim 2, characterized in that, The length of the scraper (201) is the same as the length of the roller (3).

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