EVA (Ethylene Vinyl Acetate) polystyrene foam open mill structure

Abstract

The utility model discloses an EVA (Ethylene Vinyl Acetate) polystyrene foam open mill structure, particularly relates to the field of open mills, and comprises a rack, a pair of rollers are rotatably connected to the inner side of the rack, a pair of rotating motors I used for respectively driving the pair of rollers to rotate are arranged on the rack, a pair of supporting seats is fixedly connected to the rack, a rotating frame is rotatably connected to the pair of supporting seats, and the rotating frame is fixedly connected to the rack. Wherein one supporting seat is provided with a second rotating motor which drives the rotating frame to rotate through a speed reducer, the rotating frame is provided with a linear telescopic mechanism, the linear telescopic mechanism is provided with a bidirectional transmission structure, and the linear telescopic mechanism is used for driving the bidirectional transmission structure to do linear reciprocating motion. The two-way transmission structure comprises a second fixing base, a two-way lead screw, a pair of threaded transmission bases and a second polish rod. According to the utility model, the technical problem of processing complexity caused by the fact that an operator needs to cut EVA polystyrene foam materials in real time and intensively stack the EVA polystyrene foam materials in the middle area of a pair of rollers in the conventional open mill is solved.

Description

Technical Field

[0001] The utility model relates to the field of open mixing mills, and more specifically, to an EVA foaming rubber open mixing mill structure. Background Art

[0002] The open mill is the abbreviation of the open plastic refining machine. In plastic product factories, people are used to calling it a two-rolling machine. The open mill is a kind of plastic mixing equipment that was used earlier in plastic product manufacturers. The main working parts of the open mill are relatively rotating hollow rollers or drilled mixing drums. The one installed on the operator's side is called the front spoke, which can be moved horizontally forward and backward by manual or electric action to adjust the roller spacing to meet the operating requirements; the rear roller is fixed and cannot move forward and backward. The two rollers are generally the same size and rotate relative to each other at different speeds. The raw rubber or rubber material is rolled into the gap between the two wheels as the rollers rotate, and is subjected to strong shearing to achieve the purpose of plasticization or mixing. EVA foam is a kind of glue with foaming and bonding properties. It is mainly used for filling, sealing and bonding of the edge seams of building doors and windows, expansion joints of components and holes. It is a polyurethane elastic sealing foam material that relies on moisture curing. The open mill is required for processing when preparing EVA foam.

[0003] At present, when the rollers of the mixing mill are in the position of shearing the EVA foam raw materials, the operator needs to cut the EVA foam materials in real time and concentrate them in the middle area of ​​a pair of rollers for rolling. This can ensure the uniformity and quality of plasticizing or mixing. Since continuous cutting processing is required manually, the processing is cumbersome. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the utility model provides an EVA foam rubber open mill structure. The technical problem to be solved by the utility model is that the current open mill requires the operator to cut the EVA foam rubber material in real time and concentrate it in the middle area of ​​a pair of rollers for rolling, which has the technical problem of cumbersome processing.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an EVA foam rubber open mill structure, comprising a frame, a pair of rollers are rotatably connected to the inner side of the frame, and a pair of rotating motors are provided on the frame for driving the pair of rollers to rotate respectively, a pair of supporting seats are fixedly connected to the frame, a rotating frame is rotatably connected to the pair of supporting seats, one of the supporting seats is provided with a rotating motor 2 for driving the rotating frame to rotate through a reducer, a linear telescopic mechanism is provided on the rotating frame, a bidirectional transmission structure is provided on the linear telescopic mechanism, and the linear telescopic mechanism is used to drive the bidirectional transmission structure to move linearly back and forth;

[0006] The bidirectional transmission structure includes a second fixed seat, a bidirectional screw rod rotatably connected to the second fixed seat, a pair of threaded transmission seats threadedly connected to the bidirectional screw rod, and a second smooth rod fixedly penetrating the second fixed seat, a pair of threaded transmission seats slidably connected to the second smooth rod, a rotation driving unit for driving the bidirectional screw rod to rotate is arranged on the second fixed seat, an ear plate is fixedly connected to each threaded transmission seat, a transmission rod is rotatably connected to the inner side of the ear plate, and a rotating rod is fixedly connected to the bottom end of the transmission rod;

[0007] A rotating motor four is provided on one of the ear plates for driving the transmission rod to rotate, and a telescopic transmission structure is provided on a pair of ear plates. When the rotating motor four drives one of the transmission rods to rotate, the transmission rod can drive the other transmission rod to rotate in the opposite direction through the telescopic transmission structure.

[0008] In a preferred embodiment, the linear telescopic mechanism includes a pair of fixed seats one fixedly connected to the inner side of the rotating frame, a light rod one fixedly connected to the pair of fixed seats one, a slide slidably connected to the light rod one, and a telescopic motor fixedly connected to one of the fixed seats one, and the piston output end of the telescopic motor passes through the fixed seat one and is fixedly connected to the slide.

[0009] In a preferred embodiment, the second fixing seat is fixedly connected to the sliding frame.

[0010] In a preferred embodiment, the rotation drive unit includes a rotation motor three fixedly connected to the fixed seat two, a gear one fixedly connected to the output end of the rotation motor three, and a gear two meshingly connected to the gear one, and the gear two is fixedly connected to the light rod of the bidirectional screw.

[0011] In a preferred embodiment, the telescopic transmission structure includes a bearing seat fixedly connected to the inner side of each ear plate, a gear pair rotatably connected to each bearing seat via a rotating shaft, a telescopic inner rod fixedly connected to one of the gear pairs, and a telescopic outer rod fixedly connected to the other gear pair.

[0012] In a preferred embodiment, the gear pair includes a pair of meshing bevel gears, one of which is rotatably connected to the bearing seat via a rotating shaft, and the other is fixedly connected to the transmission rod, the telescopic inner rod is movably inserted into the telescopic outer rod, and the opposite ends of the telescopic inner rod and the telescopic outer rod are respectively fixedly connected to the rotating shafts of a pair of bevel gears.

[0013] In a preferred embodiment, a collection box is provided at the inner bottom of the frame.

[0014] Technical effects and advantages of the utility model:

[0015] 1. The EVA foam rubber mill structure of the utility model is to put the EVA foam rubber between a pair of rollers for rolling and shearing, control the rotating frame to move circumferentially to one side of the rollers, and allow a pair of rotating rods to fit on one of the rollers, and control the pair of rotating rods to rotate relatively. At the same time, a linear telescopic mechanism gives the pair of rotating rods reciprocating mobility, so that the EVA foam rubber rolled onto the rollers can be pushed and concentrated by the rotating rods, and can be rolled up. Through repeated shearing, the uniformity of the EVA foam rubber milling can be improved.

[0016] 2. The EVA foaming rubber mill structure of the utility model is provided with a bidirectional transmission structure, and a rotation driving unit gives the bidirectional transmission structure rotational driving property, so that it is convenient to control and adjust the relative spacing of a pair of rotating rods to meet the applicability of rolling the EVA foaming rubber material with different spacings.

[0017] 3. The EVA foaming rubber mixing mill structure of the utility model is provided with a telescopic transmission structure. In the process of adjusting the relative spacing of a pair of rotating rods, the telescopic inner rod and the telescopic outer rod can ensure the real-time transmission based on the rotation of the supporting seat and the plug-in cooperation. In this way, a rotating motor four can synchronously control a pair of rotating rods to rotate in different directions, which can improve the drive utilization rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the implementation or the prior art description. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0020] Figure 2 It is a structural schematic diagram of the frame, roller and rotating frame of the utility model.

[0021] Figure 3 It is a structural schematic diagram of the rotating frame, linear telescopic mechanism and bidirectional transmission structure of the utility model.

[0022] Figure 4 For this utility model Figure 3 Enlarged view of part A in the middle.

[0023] Figure 5 It is a structural schematic diagram of the ear plate, the rotating rod and the telescopic transmission structure of the utility model.

[0024] The reference numerals are: 1, frame; 2, roller; 3, rotating motor 1; 4, support base; 5, rotating frame; 6, rotating motor 2;

[0025] 7. Linear telescopic mechanism; 71. Fixed seat one; 72. Polished rod one; 73. Sliding frame; 74. Telescopic motor;

[0026] 8. Bidirectional transmission structure; 81. Fixed seat 2; 82. Bidirectional screw rod; 83. Threaded transmission seat; 84. Polish rod 2;

[0027] 9. Rotation drive unit; 91. Rotation motor three; 92. Gear one; 93. Gear two;

[0028] 10. Ear plate; 11. Transmission rod; 12. Rotating rod; 13. Rotating motor 4;

[0029] 14. telescopic transmission structure; 141. bearing seat; 142. gear pair; 143. telescopic inner rod; 144. telescopic outer rod; 15. collection box. DETAILED DESCRIPTION

[0030] The following is a specific embodiment of the present invention. People familiar with the technology can easily understand the other advantages and functions of the present invention from the contents disclosed in this specification. Obviously, the described embodiment is a part of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] Combined with reference Figure 1 -- Figure 5 The utility model provides an EVA foaming rubber open mill structure, including a frame 1, a pair of rollers 2 are rotatably connected to the inner side of the frame 1, and a pair of rotating motors 3 are provided on the frame 1 for respectively driving the pair of rollers 2 to rotate, a pair of supporting seats 4 are fixedly connected to the frame 1, and a rotating frame 5 is rotatably connected to the pair of supporting seats 4, one of the supporting seats 4 is provided with a rotating motor 6 that drives the rotating frame 5 to rotate through a reducer, such a driving method can meet the rotation self-locking property, and is safe and stable, a linear telescopic mechanism 7 is provided on the rotating frame 5, and a bidirectional transmission structure 8 is provided on the linear telescopic mechanism 7, and the linear telescopic mechanism 7 is used to drive the bidirectional transmission structure 8 to move linearly back and forth, and the rotating frame 5 can drive the linear telescopic mechanism 7 and the bidirectional transmission structure 8 to rotate in position.

[0032] A collecting box 15 is provided at the inner bottom of the frame 1 , and the collecting box 15 can be used to receive the scraps of the EVA foam material falling from the roller 2 .

[0033] The linear telescopic mechanism 7 includes a pair of fixed seats 71 fixedly connected to the inner side of the rotating frame 5, a light rod 72 fixedly connected to the pair of fixed seats 71, a slide 73 slidably connected to the light rod 72 and a telescopic motor 74 fixedly connected to one of the fixed seats 71. The piston output end of the telescopic motor 74 passes through the fixed seat 71 and is fixedly connected to the slide 73. In the present application, a short light rod may also be provided on one of the fixed seats 71, which can further improve the stability of the movement of the slide 73. By controlling the reciprocating extension and retraction of the piston end of the telescopic motor 74, the slide 73 can perform reciprocating linear motion on the light rod 72.

[0034] The bidirectional transmission structure 8 includes a fixed seat 81, a bidirectional screw rod 82 rotatably connected to the fixed seat 81, a pair of threaded transmission seats 83 threadedly connected to the bidirectional screw rod 82, and a light rod 84 fixedly passed through the fixed seat 81. The light rod of the bidirectional screw rod 82 is rotatably connected to the fixed seat 81, and a pair of threaded transmission seats 83 are slidably connected to the light rod 84. The fixed seat 81 is provided with a rotating drive unit 9 for driving the bidirectional screw rod 82 to rotate. Each threaded transmission seat 83 is fixedly connected to an ear plate 10, and the inner side of the ear plate 10 is rotatably connected to a transmission rod 11. The bottom end of the transmission rod 11 is fixedly connected to a rotating rod 12, and the rotating rod 12 can contact one of the rollers 2, so that it is convenient to push the EVA foam material on the roller 2.

[0035] The second fixing seat 81 is fixedly connected to the slide 73 , and the slide 73 can be used to drive the second fixing seat 81 to perform reciprocating linear movement.

[0036] The rotary drive unit 9 includes a rotary motor 3 91 fixedly connected to the fixed seat 2 81 , a gear 1 92 fixedly connected to the output end of the rotary motor 3 91 , and a gear 2 93 meshingly connected to the gear 1 92 . The gear 2 93 is fixedly connected to the smooth rod of the bidirectional screw rod 82 .

[0037] Specifically, by controlling the rotating motor 3 91 to drive the gear 1 92 to rotate, under the action of the gear 1 92 meshing with the transmission gear 2 93, the bidirectional screw 82 can rotate, and under the sliding guide provided by the light rod 2 84 for a pair of threaded transmission seats 83, the pair of threaded transmission seats 83 can move towards or away from each other under the transmission of the bidirectional screw 82.

[0038] A rotating motor 4 13 for driving the transmission rod 11 to rotate is provided on one of the ear plates 10, and a telescopic transmission structure 14 is provided on a pair of ear plates 10. When the rotating motor 4 13 drives one of the transmission rods 11 to rotate, the transmission rod 11 can drive the other transmission rod 11 to rotate in the opposite direction through the telescopic transmission structure 14.

[0039] The telescopic transmission structure 14 includes a bearing seat 141 fixedly connected to the inner side of each ear plate 10, a gear pair 142 rotatably connected to each bearing seat 141 through a rotating shaft, a telescopic inner rod 143 fixedly connected to one of the gear pairs 142 and a telescopic outer rod 144 fixedly connected to the other gear pair 142. In the present application, a limiting slide bar is provided on the outer surface of the telescopic inner rod 143, and the telescopic inner rod 143 can be linearly slidably inserted in the telescopic outer rod 144 through the limiting slide bar.

[0040] The gear pair 142 includes a pair of meshing bevel gears, one of which is rotatably connected to the bearing seat 141 via a rotating shaft, and the other bevel gear is fixedly connected to the transmission rod 11. The telescopic inner rod 143 is movably inserted in the telescopic outer rod 144, and the opposite ends of the telescopic inner rod 143 and the telescopic outer rod 144 are respectively fixedly connected to the rotating shafts of a pair of bevel gears.

[0041] Specifically, by controlling the rotating motor 13 to drive one of the transmission rods 11 to rotate, a rotating rod 12 can be rotated. At this time, a pair of gear pairs 142 can transmit power through the telescopic inner rod 143 and the telescopic outer rod 144, so that the other rotating rod 12 can rotate oppositely. When a pair of rotating rods 12 are set on the roller 2, the EVA foam material on the roller 2 can be pushed forward and reciprocatingly pushed horizontally by the rotating rod 12, so that the EVA foam material can be concentrated for rolling processing.

[0042] It is worth noting that when the distance between the pair of rotating rods 12 is adjusted, the telescopic inner rod 143 and the telescopic outer rod 144 can be adaptively telescoped, which can ensure the real-time power transmission of the pair of rotating rods 12.

[0043] The working principle of the EVA foam rubber mill structure of the utility model is as follows: by rolling the EVA foam rubber material onto a pair of rollers 2, at this time, the rotating frame 5 can be controlled to rotate and descend, and a pair of rotating rods 12 can be movably contacted on one of the rollers 2, and the pair of rotating rods 12 are driven to move back and forth in a straight line through the linear telescopic mechanism 7. At the same time, the pair of rotating rods 12 are driven to rotate in different directions under the cooperation of the rotating motor 4 13 and the telescopic transmission structure 14, so that the rotating rotating rods 12 can push the EVA foam rubber material to move in the rotation direction of the roller 2, and at the same time, the rotating rods 12 that move in a straight line can push the EVA foam rubber material to be rolled, and the EVA foam rubber material is repeatedly sheared by the rollers 2, so that the uniformity of the EVA foam rubber milling can be improved and the tediousness of manual cutting and rolling can be reduced.

Claims

1. An EVA foaming rubber open mill structure, comprising a frame (1), wherein a pair of rollers (2) are rotatably connected to the inner side of the frame (1), and a pair of rotating motors (3) are provided on the frame (1) for respectively driving the pair of rollers (2) to rotate, wherein: A pair of support seats (4) are fixedly connected to the frame (1), and a rotating frame (5) is rotatably connected to the pair of support seats (4), one of the support seats (4) is provided with a rotating motor (6) for driving the rotating frame (5) to rotate via a reducer, and a linear telescopic mechanism (7) is provided on the rotating frame (5), and a bidirectional transmission structure (8) is provided on the linear telescopic mechanism (7), and the linear telescopic mechanism (7) is used to drive the bidirectional transmission structure (8) to move linearly back and forth; The bidirectional transmission structure (8) comprises a second fixed seat (81), a bidirectional screw rod (82) rotatably connected to the second fixed seat (81), a pair of threaded transmission seats (83) threadedly connected to the bidirectional screw rod (82), and a second smooth rod (84) fixedly passed through the second fixed seat (81), the pair of threaded transmission seats (83) being slidably connected to the second smooth rod (84), the second fixed seat (81) being provided with a rotation driving unit (9) for driving the bidirectional screw rod (82) to rotate, each threaded transmission seat (83) being fixedly connected to an ear plate (10), the inner side of the ear plate (10) being rotatably connected to a transmission rod (11), and the bottom end of the transmission rod (11) being fixedly connected to a rotating rod (12); A rotating motor four (13) for driving the transmission rod (11) to rotate is arranged on one of the ear plates (10), and a telescopic transmission structure (14) is arranged on a pair of ear plates (10). When the rotating motor four (13) drives one of the transmission rods (11) to rotate, the transmission rod (11) can drive the other transmission rod (11) to rotate in the opposite direction through the telescopic transmission structure (14).

2. The EVA foaming rubber mill structure according to claim 1, characterized in that: The linear telescopic mechanism (7) comprises a pair of fixed seats (71) fixedly connected to the inner side of the rotating frame (5), a light rod (72) fixedly connected to the pair of fixed seats (71), a slide (73) slidably connected to the light rod (72), and a telescopic motor (74) fixedly connected to one of the fixed seats (71); a piston output end of the telescopic motor (74) passes through the fixed seat (71) and is fixedly connected to the slide (73).

3. The EVA foaming rubber mill structure according to claim 2, characterized in that: The second fixing seat (81) is fixedly connected to the sliding frame (73).

4. The EVA foaming rubber mill structure according to claim 1, characterized in that: The rotary drive unit (9) comprises a rotary motor three (91) fixedly connected to the fixed seat two (81), a gear one (92) fixedly connected to the output end of the rotary motor three (91), and a gear two (93) meshingly connected to the gear one (92), wherein the gear two (93) is fixedly connected to the smooth rod of the bidirectional screw rod (82).

5. The EVA foaming rubber mill structure according to claim 1, characterized in that: The telescopic transmission structure (14) comprises a bearing seat (141) fixedly connected to the inner side of each ear plate (10), a gear pair (142) rotatably connected to each bearing seat (141) via a rotating shaft, a telescopic inner rod (143) fixedly connected to one of the gear pairs (142), and a telescopic outer rod (144) fixedly connected to another of the gear pairs (142).

6. The EVA foaming rubber mill structure according to claim 5, characterized in that: The gear pair (142) comprises a pair of meshing bevel gears, one of which is rotatably connected to the bearing seat (141) via a rotating shaft, and the other bevel gear is fixedly connected to the transmission rod (11); the telescopic inner rod (143) is movably inserted into the telescopic outer rod (144); and the opposite ends of the telescopic inner rod (143) and the telescopic outer rod (144) are respectively fixedly connected to the rotating shafts of the pair of bevel gears.

7. The EVA foaming rubber mill structure according to claim 1, characterized in that: A collection box (15) is provided at the inner bottom of the frame (1).

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