Conveying structure based on PVC calendering film

Abstract

The utility model belongs to the technical field of PVC (polyvinyl chloride) calendering film processing, and particularly relates to a conveying structure based on a PVC calendering film, which comprises a bottom plate, a fixing frame is fixed above the middle of the bottom plate, a lower transverse shaft is mounted at the bottom end of the fixing frame through a bearing, and the right end of the lower transverse shaft is fixedly connected with the output end of a motor arranged on the bottom plate. The outer side of the middle of the lower transverse shaft is fixedly sleeved with a lower rubber roller, two vertical sliding grooves are formed in the outer walls of the left side and the right side of the fixing frame correspondingly, a feeding assembly is arranged on the inner side of the upper end of the fixing frame and comprises a concave frame, the left end and the right end of the concave frame are slidably connected into the two sliding grooves correspondingly, and an upper transverse shaft is connected to the inner side of the concave frame through a bearing. The outer side of the middle of the upper transverse shaft is fixedly sleeved with an upper rubber roller, two electric telescopic rods are fixedly installed at the top end of the fixing frame in a bilateral symmetry mode, and the telescopic ends of the two electric telescopic rods are fixedly connected to the outer wall of the top of the concave frame and used for adjusting the distance between the upper rubber roller and the lower rubber roller.

Description

Technical Field

[0001] The utility model belongs to the technical field of PVC calendering film processing, in particular to a conveying structure based on PVC calendering film. Background Art

[0002] PVC calendered film is a film made of polyethylene as the main raw material through calendering. It is a plastic product widely used in the market. Its production process mainly includes material batching, extrusion, calendering, stretching and other steps. In the calendering process, a conveying structure is also needed to ensure the stable and smooth transmission of the PVC calendered film.

[0003] In the actual processing of PVC calendered film, in order to ensure the uniform thickness of the PVC calendered film and improve the quality of the finished product, multiple calendering processes are usually carried out, and as the calendering process proceeds, the thickness of the PVC calendered film will continue to decrease with the number of calendering times; however, after searching and investigating, most of the PVC calendered film conveying structures on the market currently have a constant spacing between the two conveying rollers, which is not easy to adjust. As the thickness of the PVC calendered film continues to decrease, a gap will gradually appear between the upper conveying roller and the PVC calendered film, and they cannot fit tightly. The lower conveying roller and the PVC calendered film are prone to slippage, which affects the normal and stable conveying of the PVC calendered film. Therefore, it is urgent to improve the existing PVC calendered film conveying structure and provide a conveying structure based on PVC calendered film. Utility Model Content

[0004] The purpose of the utility model is to provide a conveying structure based on PVC calendered film with reasonable design, simple structure, adaptive adjustment according to film thickness, and stable and smooth conveying, so as to solve the problems existing in the prior art.

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

[0006] A conveying structure based on PVC calendered film, which includes a bottom plate, a fixed frame is fixed on the upper middle part of the bottom plate, a lower horizontal shaft is installed on the bottom end bearing of the fixed frame, the right end of the lower horizontal shaft is fixedly connected to the motor output end provided on the bottom plate, a lower rubber roller is provided on the middle outer side fixed sleeve of the lower horizontal shaft, two vertical slide grooves are respectively opened on the left and right outer walls of the fixed frame, a feeding assembly is provided on the inner side of the upper end of the fixed frame, the feeding assembly includes a concave frame, the left and right ends of the concave frame are respectively slidably connected in the two slide grooves, the inner side bearing of the concave frame is connected with an upper horizontal shaft, an upper rubber roller is provided on the middle outer side fixed sleeve of the upper horizontal shaft, and two electric telescopic rods are symmetrically fixedly installed on the top of the fixed frame, and the telescopic ends of the two electric telescopic rods are fixedly connected to the top outer wall of the concave frame for adjusting the spacing between the upper rubber roller and the lower rubber roller.

[0007] Preferably, two vertical rods are symmetrically fixed to the inner side of the slide groove, and the protruding portion of the concave frame is slidably sleeved on the outer side of the vertical rods.

[0008] Preferably, gear 1 is fixedly sleeved on the outer sides of both left and right ends of the upper horizontal axis, protrusions are provided on both left and right ends of the concave frame, the bottom ends of the two protrusions are fixedly connected to brackets, and gear 2 is sleeved on the outer bearing of the bracket, and gear 2 is meshingly connected to gear 1 just below it.

[0009] Preferably, gear three is fixedly sleeved on the outer sides of both left and right ends of the lower horizontal axis, and a power transmission component is provided on the outer side of gear three to be transmission-connected with the feeding component so that the upper rubber roller is linked with the lower rubber roller.

[0010] Preferably, the upper rubber roller and the lower rubber roller are located on the same vertical plane, and their rotation directions are always opposite.

[0011] Preferably, the power transmission assembly includes a mounting shaft, gear four, a first connecting rod and a second connecting rod. The outer side of the mounting shaft is sequentially bearing-connected with gear four, a first connecting rod and a second connecting rod in a direction away from the fixed frame. The first connecting rod and the second connecting rod are equal in length and are symmetrically offset up and down about the mounting shaft.

[0012] Preferably, one end of the first connecting rod away from the mounting shaft is sleeved with a bearing on the outer side of the end of the lower horizontal shaft, and one end of the second connecting rod away from the mounting shaft is sleeved with a bearing on the outer side of the end of the bracket.

[0013] Preferably, gear four is located between gear two and gear three, gear two and gear three are never in contact with each other and are both meshed with gear four, the diameters of gear one, gear two, gear three and gear four are equal, and the rotation directions of gear one and gear three are always opposite.

[0014] Preferably, the motor is fixedly mounted on the upper right side of the base plate.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] In the scheme of the utility model, when the starting motor controls the lower horizontal axis, the lower rubber roller and the gear three to rotate synchronously at a uniform speed, the gear four can be used to drive the gear two to rotate synchronously, so that the gear one meshing with the gear two can be used to drive the upper horizontal axis and the upper rubber roller to rotate. Since the rotation directions of the gear one and the gear three are opposite, the upper rubber roller and the lower rubber roller can be stably rotated synchronously and at the same speed in opposite directions, thereby realizing the stable transmission of the PVC calendered film clamped between the two with high efficiency.

[0017] The utility model can control the entire feeding assembly to move stably downward along the slide groove and the vertical rod through the electric telescopic rod, which is convenient for adjusting the distance between the upper rubber roller and the lower rubber roller, and is convenient for being suitable for PVC calendering films of different thicknesses during the calendering process. When the feeding assembly moves downward, the first connecting rod can rotate with the lower horizontal axis as the center of the circle, and the second connecting rod can rotate with the bracket as the center of the circle, so that the gear four can always mesh with the gear two and the gear three, and the stable reverse rotation of the upper rubber roller and the lower rubber roller can be guaranteed, which is convenient for the stable transmission of the PVC calendering film. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following briefly introduces the drawings required for use in the embodiments or the prior art descriptions, and the following description is made with respect to the drawings:

[0019] Figure 1 This is a three-dimensional front view structural diagram of the utility model;

[0020] Figure 2 This is a three-dimensional left-side structural schematic diagram of the fixing frame of the utility model;

[0021] Figure 3 This is a schematic diagram of the overall front view cross-sectional structure of the feeding assembly of the utility model;

[0022] Figure 4 This is a schematic diagram of the overall front view structure of the power transmission component of the utility model;

[0023] Figure 5 It is a front view structural schematic diagram of the utility model in the conveying working state.

[0024] In the figure:

[0025] 1. Bottom plate; 2. Motor; 3. Fixed frame; 4. Electric telescopic rod; 5. Feeding assembly; 51. Concave frame; 52. Upper horizontal axis; 53. Upper rubber roller; 54. Gear 1; 55. Bracket; 56. Gear 2; 6. Lower horizontal axis; 7. Lower rubber roller; 8. Gear 3; 9. Power transmission assembly; 91. Mounting shaft; 92. Gear 4; 93. First connecting rod; 94. Second connecting rod; 10. Slide; 11. Vertical rod. DETAILED DESCRIPTION

[0026] The embodiments described below are only some of the embodiments of the present invention and do not represent all the embodiments consistent with the present invention. Now, in conjunction with the accompanying drawings, the exemplary embodiments are described as follows:

[0027] like Figure 1-5As shown in Figure 1, the utility model is based on the conveying structure of PVC calendered film, which includes a bottom plate 1, a motor 2 is fixedly installed on the upper right side of the bottom plate 1, a fixing frame 3 is fixed on the upper middle part of the bottom plate 1, a lower horizontal shaft 6 is installed on the bottom end bearing of the fixing frame 3, the right end of the lower horizontal shaft 6 is fixedly connected to the output end of the motor 2, and a lower rubber roller 7 is fixedly sleeved on the middle outer side of the lower horizontal shaft 6; two vertical slide grooves 10 are respectively opened on the left and right outer walls of the fixing frame 3, a feeding assembly 5 is provided on the inner side of the upper end of the fixing frame 3, and the feeding assembly 5 includes a concave frame 51, the left and right ends of the concave frame 51 are respectively slidably connected in the two slide grooves 10, an upper horizontal shaft 52 is connected to the inner side bearing of the concave frame 51, and an upper rubber roller 53 is fixedly sleeved on the middle outer side of the upper horizontal shaft 52, and two electric telescopic rods 4 are symmetrically fixedly installed on the top of the fixing frame 3, and the telescopic ends of the two electric telescopic rods 4 are fixedly connected to the top outer wall of the concave frame 51, which are used to adjust the spacing between the upper rubber roller 53 and the lower rubber roller 7.

[0028] In this embodiment, the height position of the upper rubber roller 53 can be controlled by two electric telescopic rods 4, so as to adjust the distance between the upper rubber roller 53 and the lower rubber roller 7, and to facilitate the calendering of PVC calendered films of different thicknesses.

[0029] As a preferred embodiment, on the basis of the above structure, further, gear three 8 is fixedly sleeved on the outer sides of the left and right ends of the lower horizontal axis 6, and a power transmission component 9 is provided on the outer side of the gear three 8. The power transmission component 9 is transmission-connected with the feeding component 5 so that the upper rubber roller 53 is linked with the lower rubber roller 7.

[0030] On the basis of the above structure, preferably, the upper rubber roller 53 and the lower rubber roller 7 are located on the same vertical plane, and the rotation directions of the two are always opposite.

[0031] In this embodiment, the upper rubber roller 53 and the lower rubber roller 7 cooperate with each other to facilitate the stable transmission of the PVC calendered film.

[0032] As a preferred embodiment, on the basis of the above structure, further, gears 54 are fixedly sleeved on the outer sides of the left and right ends of the upper horizontal axis 52, protrusions are provided on the left and right ends of the concave frame 51, and the bottom ends of the two protrusions are fixedly connected with brackets 55, and the outer bearing of the bracket 55 is sleeved with gear 2 56, and gear 2 56 is meshingly connected to the bottom of gear 1 54.

[0033] As a preferred embodiment, on the basis of the above structure, further, two vertical rods 11 are symmetrically fixed on the inner side of the slide groove 10 in the front and rear directions, the concave frame 51 is slidably located on the inner side of the upper end of the fixed frame 3, and the protruding parts at the left and right ends of the concave frame 51 are respectively engaged and slidably located on the inner sides of the left and right slide grooves 10, and the protruding parts of the concave frame 51 are slidably sleeved on the outer sides of the vertical rods 11.

[0034] As a preferred embodiment, on the basis of the above structure, the power transmission assembly 9 further includes a mounting shaft 91, a gear four 92, a first connecting rod 93 and a second connecting rod 94. The outer side of the mounting shaft 91 is bearing-connected with the gear four 92, the first connecting rod 93 and the second connecting rod 94 in sequence in the direction away from the fixed frame 3. The first connecting rod 93 and the second connecting rod 94 are equal in length and are symmetrically offset with respect to the mounting shaft 91.

[0035] As a preferred embodiment, based on the above structure, further, one end of the first connecting rod 93 away from the mounting shaft 91 is bearing-sleeved on the outer side of the end of the lower horizontal axis 6, and one end of the second connecting rod 94 away from the mounting shaft 91 is bearing-sleeved on the outer side of the end of the bracket 55.

[0036] In this embodiment, when the feeding assembly 5 is raised or lowered for height adjustment, the first connecting rod 93 can be rotated with the lower horizontal axis 6 as the center, and the second connecting rod 94 can be rotated with the bracket 55 as the center, so that gear four 92 can always be engaged with gear two 56 and gear three 8.

[0037] As a preferred embodiment, on the basis of the above structure, further, gear four 92 is located between gear two 56 and gear three 8, gear two 56 and gear three 8 are always not in contact with each other and are both meshingly connected with gear four 92, the diameters of gear one 54, gear two 56, gear three 8 and gear four 92 are equal, and the rotation directions of gear one 54 and gear three 8 are always opposite.

[0038] In this embodiment, gear three 8 can drive gear two 56 to rotate through gear four 92, so that gear one 54 meshing with gear two 56 can be used to drive the upper horizontal shaft 52 and the upper rubber roller 53 to rotate. Since the rotation directions of gear one 54 and gear three 8 are opposite, it is easy to achieve synchronous reverse rotation of the upper rubber roller 53 and the lower rubber roller 7, thereby facilitating the transportation of the PVC calendered film.

[0039] The working principle of the utility model is as follows:

[0040] When in use, first place one end of the PVC calendered film between the upper rubber roller 53 and the lower rubber roller 7, then start the electric telescopic rod 4 on the top of the fixed frame 3, control the entire feeding assembly 5 to move vertically and stably downward along the slide 10 and the vertical rod 11, so as to adjust the distance between the upper rubber roller 53 and the lower rubber roller 7, so as to achieve the compression of the PVC calendered film;

[0041] After the PVC calendered film is pressed, the motor 2 fixedly installed on the upper right side of the bottom plate 1 can be started to control the lower horizontal shaft 6, the lower rubber roller 7 and the gear three 8 to rotate synchronously at a uniform speed. At this time, the gear three 8 can drive the gear two 56 to rotate synchronously through the gear four 92, and then the gear one 54 meshing with the gear two 56 can drive the upper horizontal shaft 52 and the upper rubber roller 53 to rotate. Since the rotation directions of the gear one 54 and the gear three 8 are opposite, it is easy to control the upper rubber roller 53 and the lower rubber roller 7 to rotate synchronously and stably in opposite directions at the same speed, so that the PVC calendered film clamped between the two can be stably transmitted, and the efficiency is high.

[0042] It should be noted that if Figure 1 , Figure 4 and Figure 5 As shown in , in the process of controlling the lifting of the feeding assembly 5, the first connecting rod 93 can be rotated with the lower horizontal axis 6 as the center, and the second connecting rod 94 can be rotated with the bracket 55 as the center, so that the gear four 92 can always be meshed with the gear two 56 and the gear three 8, which can ensure the synchronous reverse and stable rotation of the upper rubber roller 53 and the lower rubber roller 7, avoid affecting the transportation of the PVC calendered film, and ensure the smooth and stable transportation of the PVC calendered film.

[0043] The above are only preferred specific embodiments of the utility model and are not intended to limit the protection scope of the utility model; any equivalent changes, modifications, substitutions and variations made by technicians in this technical field based on the concept of the utility model through logical analysis, reasoning or limited experiments on the basis of the existing technology should be within the protection scope determined by the claims.

Claims

1. A conveying structure based on PVC calendered film, comprising a bottom plate (1), characterized in that: A fixing frame (3) is fixed above the middle of the bottom plate (1), a lower horizontal shaft (6) is installed on the bearing at the bottom end of the fixing frame (3), the right end of the lower horizontal shaft (6) is fixedly connected to the output end of the motor (2) provided on the bottom plate (1), a lower rubber roller (7) is fixedly sleeved on the outer side of the middle of the lower horizontal shaft (6), two vertical slide grooves (10) are respectively provided on the left and right outer walls of the fixing frame (3), a feeding assembly (5) is provided on the inner side of the upper end of the fixing frame (3), and the feeding assembly (5) includes a concave frame (51 ), the left and right ends of the concave frame (51) are respectively slidably connected to the two slide grooves (10), the inner bearing of the concave frame (51) is connected to the upper horizontal axis (52), the middle outer side of the upper horizontal axis (52) is fixedly sleeved with an upper rubber roller (53), the top of the fixed frame (3) is symmetrically fixed with two electric telescopic rods (4), the telescopic ends of the two electric telescopic rods (4) are fixedly connected to the top outer wall of the concave frame (51) for adjusting the distance between the upper rubber roller (53) and the lower rubber roller (7).

2. A conveying structure based on PVC calendered film according to claim 1, characterized in that: Two vertical rods (11) are symmetrically fixed to the inner side of the slide groove (10) in the front and rear directions, and the protruding part of the concave frame (51) is slidably sleeved on the outer side of the vertical rods (11).

3. The conveying structure based on PVC calendered film according to claim 1, characterized in that: Gear 1 (54) is fixedly sleeved on the outer sides of both left and right ends of the upper horizontal shaft (52), protrusions are provided on both left and right ends of the concave frame (51), and brackets (55) are fixedly connected to the bottom ends of the two protrusions, and gear 2 (56) is sleeved on the outer bearing of the bracket (55), and gear 2 (56) is meshingly connected to the gear 1 (54) directly below.

4. A conveying structure based on PVC calendered film according to claim 3, characterized in that: Gear three (8) is fixedly sleeved on the outer sides of both left and right ends of the lower horizontal shaft (6), and a power transmission component (9) is provided on the outer side of the gear three (8) and is transmission-connected with the feeding component (5) so that the upper rubber roller (53) and the lower rubber roller (7) are linked.

5. A conveying structure based on PVC calendered film according to claim 4, characterized in that: The upper rubber roller (53) and the lower rubber roller (7) are located on the same vertical plane, and their rotation directions are always opposite.

6. A conveying structure based on PVC calendered film according to claim 4, characterized in that: The power transmission assembly (9) comprises a mounting shaft (91), a gear four (92), a first connecting rod (93) and a second connecting rod (94); the outer side of the mounting shaft (91) is bearing-connected with the gear four (92), the first connecting rod (93) and the second connecting rod (94) in sequence in a direction away from the fixing frame (3); the first connecting rod (93) and the second connecting rod (94) are of equal length and are symmetrically offset with respect to the mounting shaft (91).

7. A conveying structure based on PVC calendered film according to claim 6, characterized in that: One end of the first connecting rod (93) away from the installation shaft (91) is bearing-sleeved on the outer side of the end of the lower horizontal shaft (6), and one end of the second connecting rod (94) away from the installation shaft (91) is bearing-sleeved on the outer side of the end of the bracket (55).

8. A conveying structure based on PVC calendered film according to claim 7, characterized in that: The gear four (92) is located between the gear two (56) and the gear three (8), the gear two (56) and the gear three (8) are always non-contacting with each other and are both meshingly connected with the gear four (92), the diameters of the gear one (54), the gear two (56), the gear three (8) and the gear four (92) are equal, and the rotation directions of the gear one (54) and the gear three (8) are always opposite.

9. The conveying structure based on PVC calendered film according to claim 1, characterized in that: The motor (2) is fixedly mounted on the upper right side of the base plate (1).

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