Preservative film cutter

Abstract

The utility model relates to the technical field of preservative film cutting, in particular to a preservative film cutter. Comprising a supporting frame and an adjusting mechanism, a top plate is fixedly connected to the upper end of the supporting frame, a preservative film body is installed in the top plate and the supporting frame, a rotating roller is fixedly connected to the inner wall of the preservative film body, and the adjusting mechanism is arranged in the top plate and the supporting frame and comprises a positioning assembly and a cutting assembly. The positioning assembly comprises a sliding groove, the sliding groove is formed in the surface of the top plate, sliding blocks are slidably connected to the two ends of the sliding groove, bearing frames are fixedly connected to the bottom ends of the sliding blocks, the inner walls of the two bearing frames are rotationally connected with the inner walls of the two ends of a rotating roller, and a positioning plate is fixedly connected to one side of each sliding block. The section of the positioning plate is in an L shape, and an extrusion shaft penetrates through the surface of the positioning plate in a threaded mode. The preservative film cutter provided by the utility model has the advantage that the preservative film can be conveniently cut and limited.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of preservative film cutting, especially to a preservative film cutter. BACKGROUND

[0002] The preservative film cutter is a tool for cutting preservative film, and the design aims to make the use of preservative film more convenient and efficient. The preservative film cutter is usually equipped with a sharp blade that can accurately cut the preservative film. The cutter is equipped with a groove or bracket specially designed to place the preservative film reel, so that the preservative film can roll and pull out smoothly. It is relatively common in daily life.

[0003] Prior art such as the utility model with publication number CN210311761U discloses a preservative film cutter. The patent includes an upper shell and a lower shell. The upper shell is hinged to the rear side of the lower shell. The front side of the lower shell is provided with a knife groove. The upper shell is provided with a mounting groove opposite the knife groove. A cutting saw blade is arranged in the mounting groove. The inside of the lower shell is symmetrically provided with a partition plate. The partition plate is provided with a through hole. The outside of the lower shell is provided with a pull pin. The top end of the pull pin penetrates the side wall of the lower shell and passes through the through hole. The top end of the pull pin is provided with a limit block. A spring is arranged between the limit block and the inner side wall of the lower shell. The limit block is in contact with the partition plate through the spring. The utility model uses a spring to touch the pull pin, so that the top end of the pull pin can receive the preservative film reel, preventing the preservative film reel from separating from the lower shell. At the same time, by pulling the pull pin externally, the top end of the pull pin can be separated from the preservative film reel, thereby facilitating the replacement of the preservative film reel, and the whole is very convenient to use.

[0004] In daily life, it is found that during the operation and use of the preservative film, the preservative film is usually thin. After stretching and covering the preservative film, the preservative film will be pulled apart. At this time, irregular and sticky connections occur when manually pulling, which leads to waste of the preservative film during use. UTILITY MODEL CONTENTS

[0005] The utility model aims to solve the problem of waste of the preservative film during use due to the thinness of the preservative film, the pulling apart of the preservative film after stretching and covering, and the irregular and sticky connections during manual pulling.

[0006] The utility model provides a preservative film cutting device that solves the above technical problems, comprising: a support frame, an adjusting mechanism, the upper end fixed connection of support frame has the top plate, the inside mounting of top plate and support frame has the preservative film body, the inner wall fixed connection of preservative film body has the rotating roller, the inside of adjusting mechanism sets up in top plate and support frame, adjusting mechanism includes positioning assembly and cutting assembly, positioning assembly includes the sliding slot, the surface of top plate is opened in the sliding slot, both ends of sliding slot all slide and connect with the sliding block, the bottom fixed connection of sliding block has the bearing frame, the inner wall rotationally connected of two bearing frames and rotating roller both ends inner wall, one side fixed connection of sliding block has the locating plate, the section of locating plate is 'L' shape, the surface screw penetration of locating plate has the extrusion shaft, one end rotationally connected of extrusion shaft near top plate has the extrusion plate, the both sides fixed connection of top plate has same mounting bracket, the surface of mounting bracket is opened in the connecting groove, the inner wall of connecting groove and the surface of preservative film body slide penetration, the surface fixed connection of mounting bracket has the guide rail, the inner wall slide connection of guide rail has the moving frame, the inner wall section of guide rail is inverted 'T' shape, the section size of moving frame and the section size of guide rail are matched, the surface screw penetration of moving frame upper end has the fixed shaft, the bottom of fixed shaft and the surface of guide rail abut, one side surface fixed connection of moving frame has the auxiliary plate, the surface slide penetration of auxiliary plate has the adjusting rod, the bottom fixed connection of adjusting rod has the scraper, the circular arc surface of adjusting rod is provided with spring, both ends of spring are fixedly connected with adjusting rod and auxiliary plate.

[0007] The effect of the above components is that: during the operation and use of the preservative film body, the entire preservative film body is regulated and controlled, at this time, the adjusting mechanism provided on the surface of the support frame and the top plate is used for auxiliary operation, the positioning assembly can fix and limit the preservative film body, and the cutting assembly is used for cutting operation during the use of the preservative film body.

[0008] Preferably, a roller is rotationally connected to the side of the sliding block away from the locating plate, and an auxiliary groove is formed in the side wall of the top plate, with the inner wall of the auxiliary groove being in sliding connection with the circular arc surface of the roller.

[0009] The effect of the above components is that: the sliding limit between the roller and the auxiliary groove enables the sliding block to slide more conveniently, which helps to reduce friction.

[0010] Preferably, a friction pad is fixedly connected to the side of the top plate away from the auxiliary groove, the friction pad is a rubber pad, and the surface of the friction pad is in abutment with the surface of the extrusion plate.

[0011] The effect of the above components is that: the rubber material friction pad can be effectively extruded and fixed with the extrusion plate, so as to avoid the movement of the sliding block.

[0012] Preferably, the upper surface of the top plate is provided with a scale on one side, and the length of the scale is matched with the length of the chute.

[0013] The effect of the above-mentioned component is that the scale on the surface of the top plate can more accurately control the movement distance of the bearing frame and the sliding block.

[0014] Preferably, the inner wall of the connecting groove is rotatably connected with a roller on both sides, and the circular arc surface on one side of the two rollers is in sliding penetration with the surface of the preservative film body.

[0015] The effect of the above-mentioned component is that the roller and the preservative film body are better in sliding operation.

[0016] Preferably, the both ends of the guide rail are fixedly connected with a baffle, and the cross-sectional dimension of the baffle is matched with the cross-sectional dimension of the moving frame.

[0017] The effect of the above-mentioned component is that the baffle can protect the position of the moving frame, so as to avoid the falling of the moving frame from the guide rail during use.

[0018] Preferably, the bottom surface of the mounting frame is fixedly connected with a cutting plate, and the surface of the cutting plate is provided with a cutting groove, and the cross-sectional dimension of the cutting groove is matched with the cross-sectional dimension of the scraper.

[0019] The effect of the above-mentioned component is that when the preservative film body is cut, the cutting plate and the cutting groove can be matched, which helps the scraper to better cut the preservative film body.

[0020] Compared with the related art, the preservative film cutter has the following beneficial effects:

[0021] By operating the adjusting mechanism, the preservative film body can be conveniently replaced and limited in position, and cut during use. First, the position of the preservative film body is fixed by the positioning assembly arranged on both sides of the surface of the top plate, which helps to replace the used preservative film body. Then, the scraper in the cutting assembly arranged on one side of the mounting frame is slid by the mounting frame fixed on the surface of the top plate, which helps to quickly cut and separate the surface of the preservative film body during use. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 The structure of the preservative film cutter is shown in the structure diagram.

[0023] Figure 2 The structure of the preservative film cutter is shown in the structure diagram. Figure 1 The partial structure of the three-dimensional mechanism is shown in the structure diagram.

[0024] Figure 3 As shown in the enlarged structural schematic view at A; Figure 1

[0025] Figure 4 As shown in the structural schematic view of the positioning assembly; Figure 1

[0026] Figure 5 As shown in the structural schematic view of the cutting assembly. Figure 1

[0027] Reference numerals in the drawings: 1, support frame; 2, preservative film body; 3, top plate; 4, adjusting mechanism; 41, positioning assembly; 4101, sliding groove; 4102, sliding block; 4103, bearing frame; 4104, roller; 4105, auxiliary groove; 4106, scale table; 4107, positioning plate; 4108, extrusion shaft; 4109, extrusion plate; 4110, friction pad; 42, cutting assembly; 4201, mounting frame; 4202, guide rail; 4203, moving frame; 4204, fixed shaft; 4205, auxiliary plate; 4206, adjusting rod; 4207, spring; 4208, baffle; 4209, scraper; 4210, roller shaft; 4211, connecting groove; 4212, cutting plate; 4213, cutting groove; 5, rotating roller. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical scheme and advantages of the utility model more clearly, the following will be further described in detail 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.

[0029] The specific implementation of the utility model will be described in detail in combination with specific examples.

[0030] Please refer to Figures 1 to 5 The utility model embodiment provides a preservative film cutting device, which comprises a support frame 1 and an adjusting mechanism 4, the upper end of the support frame 1 is fixedly connected with a top plate 3, the inside of the top plate 3 and the support frame 1 is installed with a preservative film body 2, the inner wall of the preservative film body 2 is fixedly connected with a rotating roller 5, and the adjusting mechanism 4 is arranged in the inside of the top plate 3 and the support frame 1.

[0031] In the embodiment of the utility model, please refer to Figure 3 、 Figure 4 and Figure 5 ​​​The adjusting mechanism 4 comprises a positioning assembly 41 and a cutting assembly 42. The positioning assembly 41 comprises a sliding groove 4101 formed in the surface of the top plate 3, sliding blocks 4102 slidably connected to the two ends of the sliding groove 4101, bearing frames 4103 fixedly connected to the bottom ends of the sliding blocks 4102, the inner walls of the two bearing frames 4103 rotatably connected to the inner walls of the two ends of the rotating roller 5, a positioning plate 4107 fixedly connected to one side of the sliding block 4102, the positioning plate 4107 in an 'L' shape, an extrusion shaft 4108 threadedly penetrating through the surface of the positioning plate 4107, an extrusion plate 4109 rotatably connected to the end of the extrusion shaft 4108 close to the top plate 3, the same mounting bracket 4201 fixedly connected to the two sides of the top plate 3, a connecting groove 4211 formed in the surface of the mounting bracket 4201, the inner wall of the connecting groove 4211 slidably penetrating through the surface of the cling film body 2, a guide rail 4202 fixedly connected to the surface of the mounting bracket 4201, a moving frame 4203 slidably connected to the inner wall of the guide rail 4202, the inner wall of the guide rail 4202 in an inverted 'T' shape, the cross-sectional size of the moving frame 4203 matched with the cross-sectional size of the guide rail 4202, a fixed shaft 4204 threadedly penetrating through the upper end surface of the moving frame 4203, the bottom end of the fixed shaft 4204 abutting against the surface of the guide rail 4202, an auxiliary plate 4205 fixedly connected to the side surface of the moving frame 4203, an adjusting rod 4206 slidably penetrating through the surface of the auxiliary plate 4205, a scraper 4209 fixedly connected to the bottom end of the adjusting rod 4206, a spring 4207 sleeved on the arc surface of the adjusting rod 4206, the two ends of the spring 4207 fixedly connected to the adjusting rod 4206 and the auxiliary plate 4205 respectively, a roller 4104 rotatably connected to the side of the sliding block 4102 away from the positioning plate 4107, an auxiliary groove 4105 formed in the side wall of the top plate 3, the inner wall of the auxiliary groove 4105 slidably connected to the arc surface of the roller 4104, a friction pad 4110 fixedly connected to the side of the top plate 3 away from the auxiliary groove 4105, the friction pad 4110 being a rubber pad, the surface of the friction pad 4110 abutting against the surface of the extrusion plate 4109, a scale table 4106 formed in the side of the upper surface of the top plate 3, the length size of the scale table 4106 matched with the length size of the sliding groove 4101, the inner walls of the connecting groove 4211 rotatably connected to two rolling shafts 4210, the arc surfaces of the two rolling shafts 4210 close to each other slidably penetrating through the surface of the cling film body 2, the two ends of the guide rail 4202 fixedly connected to baffle plates 4208, the cross-sectional size of the baffle plate 4208 matched with the cross-sectional size of the moving frame 4203, a cutting plate 4212 fixedly connected to the bottom end surface of the mounting bracket 4201, a cutting groove 4213 formed in the surface of the cutting plate 4212, the cross-sectional size of the cutting groove 4213 matched with the cross-sectional size of the scraper 4209;

[0032] The working principle of the preservative film cutter is as follows: in the process of operating and using the preservative film body 2, first, the positioning assembly 41 in the adjusting mechanism 4 is used to place the preservative film body 2 in the inside of the support frame 1 and the top plate 3, then the cutting assembly 42 is used to perform the cutting operation, the extrusion shaft 4108 at the both ends of the top plate 3 is rotated first, the sliding block 4102 fixed on the upper end of the bearing frame 4103 is in the sliding state with the sliding groove 4101 opened on the surface of the top plate 3, then the two bearing frames 4103 are moved to the appropriate positions, the rotating roller 5 fixed on the inner wall of the preservative film body 2 is placed in the middle of the two bearing frames 4103, the preservative film body 2 can be rotated in the bearing frame 4103 by the rotating roller 5, then the extrusion shaft 4108 is rotated, the two bearing frames 4103 are in the fixed state, the preservative film body 2 of the circular arc surface of the rotating roller 5 is pulled, the preservative film body 2 is slid through the connecting groove 4211 opened on the surface of the mounting frame 4201, at this time, the preservative film body 2 stretched on the surface of the rotating roller 5 can be stretched, in order to cut the used preservative film body 2, the fixed shaft 4204 at the upper end of the moving frame 4203 is rotated first, the moving frame 4203 is in the sliding state with the guide rail 4202, the adjusting rod 4206 on one side of the moving frame 4203 is pressed, the adjusting rod 4206 overcomes the extrusion force generated by the spring 4207, at the same time, the scraper 4209 fixed at the bottom end of the adjusting rod 4206 is contacted and cut the surface of the preservative film body 2, and the scraper 4209 is slid along the cutting groove 4213 opened on the surface of the cutting plate 4212 of the lower surface of the mounting frame 4201 to perform the cutting operation.

[0033] The circuit and the control involved in the utility model are prior art, and too much repetition is not performed herein.

[0034] 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 transformation by using the contents of the utility model specification and drawings, or direct or indirect application in other related technical fields, is also included in the patent protection range of the utility model.

Claims

1. A plastic wrap cutter, characterized in that, include: The support frame (1) and the adjustment mechanism (4) are provided. A top plate (3) is fixedly connected to the upper end of the support frame (1). A plastic wrap body (2) is installed inside the top plate (3) and the support frame (1). A rotating roller (5) is fixedly connected to the inner wall of the plastic wrap body (2). The adjustment mechanism (4) is located inside the top plate (3) and the support frame (1). The adjustment mechanism (4) includes a positioning component (41) and a cutting component (42). The positioning component (41) includes a groove (4101). The groove (4101) is formed on the surface of the top plate (3). Both ends of the slide are slidably connected to sliders (4102). The bottom end of the slider (4102) is fixedly connected to a bearing frame (4103). The inner walls of the two bearing frames (4103) are rotatably connected to the inner walls of both ends of the rotating roller (5). A positioning plate (4107) is fixedly connected to one side of the slider (4102). The cross-section of the positioning plate (4107) is "L" shaped. The surface of the positioning plate (4107) is threaded through an extrusion shaft (4108). An extrusion plate (4109) is rotatably connected to one end of the extrusion shaft (4108) near the top plate (3). The two sides of the top plate (3) A mounting bracket (4201) is fixedly connected to the same mounting bracket (4201). A connecting groove (4211) is formed on the surface of the mounting bracket (4201). The inner wall of the connecting groove (4211) slides through the surface of the plastic wrap body (2). A guide rail (4202) is fixedly connected to the surface of the mounting bracket (4201). A movable frame (4203) is slidably connected to the inner wall of the guide rail (4202). The inner wall of the guide rail (4202) has an inverted "T" shaped cross-section. The cross-sectional dimensions of the movable frame (4203) are adapted to the cross-sectional dimensions of the guide rail (4202). The upper part of the movable frame (4203)... A fixed shaft (4204) is threaded through the end surface. The bottom end of the fixed shaft (4204) abuts against the surface of the guide rail (4202). An auxiliary plate (4205) is fixedly connected to one side surface of the movable frame (4203). An adjusting rod (4206) slides through the surface of the auxiliary plate (4205). A scraper (4209) is fixedly connected to the bottom end of the adjusting rod (4206). A spring (4207) is sleeved on the arc surface of the adjusting rod (4206). The two ends of the spring (4207) are fixedly connected to the adjusting rod (4206) and the auxiliary plate (4205) respectively.

2. The plastic wrap cutter according to claim 1, characterized in that, The slider (4102) is rotatably connected to a roller (4104) on the side away from the positioning plate (4107). An auxiliary groove (4105) is provided on the side wall of the top plate (3). The inner wall of the auxiliary groove (4105) is slidably connected to the arc surface of the roller (4104).

3. A plastic wrap cutter according to claim 2, characterized in that, A friction pad (4110) is fixedly connected to the side of the top plate (3) away from the auxiliary groove (4105). The friction pad (4110) is a rubber pad, and the surface of the friction pad (4110) abuts against the surface of the extrusion plate (4109).

4. A plastic wrap cutter according to claim 1, characterized in that, A scale (4106) is provided on one side of the upper surface of the top plate (3), and the length of the scale (4106) is adapted to the length of the slide (4101).

5. A plastic wrap cutter according to claim 1, characterized in that, Rollers (4210) are rotatably connected to both sides of the inner wall of the connecting groove (4211), and the arc surface of the two rollers (4210) close to each other slides through the surface of the plastic wrap body (2).

6. A plastic wrap cutter according to claim 1, characterized in that, Both ends of the guide rail (4202) are fixedly connected to baffles (4208), and the cross-sectional dimensions of the baffles (4208) are adapted to the cross-sectional dimensions of the movable frame (4203).

7. A plastic wrap cutter according to claim 1, characterized in that, A cutting plate (4212) is fixedly connected to the bottom surface of the mounting bracket (4201). A cutting groove (4213) is provided on the surface of the cutting plate (4212). The cross-sectional dimensions of the cutting groove (4213) are adapted to the cross-sectional dimensions of the scraper (4209).

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