Edge cutting device for PP (Propene Polymer) sheets

Abstract

The utility model belongs to the field of PP material processing, and particularly relates to a PP sheet edge cutting device which comprises a bottom bed, a conveying belt is fixedly installed at one end of the top of the bottom bed, an installation plate is fixedly installed at the other end of the top of the bottom bed, the conveying belt is adjacent to the installation plate, and a limiting assembly is arranged above the end, close to the installation plate, of the conveying belt. The surface of a PP sheet placed at the top end of the conveying belt is extruded through the limiting assembly, then the end of the PP sheet is prevented from tilting, and an edge cutting assembly used for cutting the side edge of the PP sheet is installed on the installation plate. And the edge cutting assembly is arranged to cut the two sides of the sheet at the same time, cut leftover materials can be collected at the same time, and use is convenient.

Description

Technical Field

[0001] The utility model relates to the field of PP material processing, in particular to a PP sheet material trimming device. Background Art

[0002] PP material stands for polypropylene material in plastics. Polypropylene is a non-toxic, odorless, tasteless milky white highly crystalline polymer. PP material has chemical resistance, heat resistance, electrical insulation, high-strength mechanical properties and good high wear resistance processing properties, etc., which makes PP material widely developed and applied in many fields.

[0003] During the production process of PP material being processed into PP sheet, some convex materials with uneven edges will be produced. Before being put into use, the convex materials with uneven edges need to be cut. The existing PP sheet trimming device has insufficient position adjustment between the cutters on both sides when trimming the PP sheet during transportation, and the trimmed scraps cannot be collected in time, which is inconvenient to use. Therefore, a PP sheet trimming device is proposed to address the above problems. Utility Model Content

[0004] In order to make up for the deficiencies of the prior art and solve the problems of the existing PP sheet trimming device, that when trimming the PP sheet during transportation, the position adjustment between the cutters on both sides is not accurate enough, the cut scraps cannot be collected in time, and the device is inconvenient to use, the utility model proposes a PP sheet trimming device.

[0005] The technical solution adopted by the utility model to solve its technical problem is: the utility model describes a PP sheet trimming device, comprising a bottom bed, a conveyor belt is fixedly installed at one end of the top of the bottom bed, a mounting plate is fixedly installed at the other end of the top of the bottom bed, the conveyor belt is adjacent to the mounting plate, a limiting component is arranged above one end of the conveyor belt close to the mounting plate, the surface of the PP sheet placed on the top of the conveyor belt is squeezed by the limiting component, thereby preventing the end of the PP sheet from warping, and a trimming component for cutting the side of the PP sheet is installed on the mounting plate.

[0006] The top end of the spring is fixedly connected to the bottom end of the connecting plate, and the top end of the spring is fixedly connected to the bottom end of the connecting plate.

[0007] Preferably, the trimming assembly includes a second mounting frame, the second mounting frame is arranged in a U-shape and the bottom ends on both sides are respectively fixedly connected to the two sides of the mounting plate, the mounting plate and a through slot are provided at a position below the second mounting frame, a screw rod is rotatably installed in the middle of the second mounting frame, a motor is fixedly installed on the side wall of the second mounting frame, the end of the screw rod is fixedly connected to the output end of the motor, the thread on the screw rod is bidirectional, a connecting plate second is symmetrically installed on the screw rod, the connecting plate second is threadedly connected to the screw rod through a threaded hole opened in the middle, the bottom of the connecting plate second is fixedly connected to a blade, the blade is movably arranged in the through slot, a connecting block is fixedly connected to the side wall of the second connecting plate, a through hole second is opened in the middle of the connecting block, a sliding rod is slidably installed in the middle of the second through hole, and the two ends of the sliding rod are respectively fixedly connected to the inner walls on both sides of the second mounting frame, so that the two sides of the sheet can be cut simultaneously by setting the trimming assembly.

[0008] Preferably, the blade edge is arranged in a dovetail shape, so as to facilitate cutting of the upper and lower sides of the sheet at the same time, thereby improving cutting efficiency.

[0009] Preferably, blocks are fixedly connected to the side walls opposite to the blades on both sides, and the side edges of the blocks are arranged in an arc shape, so as to facilitate the introduction of the cut scraps into the through groove.

[0010] Preferably, a triangular block is fixedly connected to the middle side wall of the through slot to prevent the cut sheets from entering the through slot.

[0011] Preferably, a driving device for driving the conveyor belt to rotate is fixedly mounted on the side wall of the bottom bed, so as to facilitate the control of the operation of the conveyor belt.

[0012] The utility model is beneficial in that:

[0013] 1. The utility model provides a limit assembly to facilitate the compression of the end position of the sheet so that the end of the sheet will not be lifted up, which is convenient for cutting. At the same time, it can increase the friction between the sheet and the conveyor belt so that the conveyor belt can continuously drive the sheet to move.

[0014] 2. The utility model facilitates cutting both sides of the sheet at the same time through the trimming assembly. The position of the blade on the trimming assembly can be adjusted as needed to meet the use requirements. In addition, the cut scraps can be introduced into the bottom bed to facilitate the collection of the scraps. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0016] Figure 1 It is a schematic diagram of the overall structure of the first embodiment;

[0017] Figure 2 It is a structural schematic diagram of the limit assembly of the first embodiment;

[0018] Figure 3 It is a structural schematic diagram of the trimming assembly of the first embodiment;

[0019] Figure 4 For Example 1 Figure 3 A schematic diagram of the structure enlargement in the middle;

[0020] Figure 5 is a cross-sectional view of embodiment 1;

[0021] Figure 6 This is a schematic diagram of the structure of the collection box of the second embodiment.

[0022] In the figure: 1. bottom bed; 2. conveyor belt; 3. mounting plate; 4. driving device; 5. limit assembly; 51. mounting frame 1; 52. through hole 1; 53. pull rod; 54. connecting rod; 55. spring 1; 56. connecting plate 1; 57. side plate; 58. slide groove; 59. mounting shaft; 510. pressure roller; 511. spring 2; 6. trimming assembly; 61. mounting frame 2; 62. motor; 63. screw rod; 64. connecting block; 65. through hole 2; 66. threaded hole; 67. connecting plate 2; 68. blade; 69. stopper; 610. slide rod; 7. collecting box; 8. through groove; 9. triangular block. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] Embodiment 1

[0025] See also Figure 1-5 As shown, a PP sheet trimming device comprises a bottom bed 1, a conveyor belt 2 is fixedly mounted on one end of the top of the bottom bed 1, a mounting plate 3 is fixedly mounted on the other end of the top of the bottom bed 1, the conveyor belt 2 is adjacent to the mounting plate 3, a limiting component 5 is arranged above one end of the conveyor belt 2 close to the mounting plate 3, the surface of the PP sheet placed on the top of the conveyor belt 2 is squeezed by the limiting component 5, thereby preventing the end of the PP sheet from warping, and a trimming component 6 for cutting the side of the PP sheet is installed on the mounting plate 3.

[0026] The limiting assembly 5 includes a mounting frame 51, which is set to be U-shaped and the bottom ends on both sides are fixedly connected to the sides of the bottom bed 1, and through holes 52 are respectively opened on both sides of the mounting frame 51, and connecting rods 54 are slidably installed inside the through holes 52 on both sides. The top of the connecting rod 54 is fixedly connected to a pull rod 53, and the bottom end of the connecting rod 54 is fixedly connected to a connecting plate 56, and a spring 55 is sleeved on the connecting rod 54. The upper and lower ends of the spring 55 are respectively fixedly connected to the mounting frame 51 and the connecting plate 56, and the two ends of the connecting plate 56 are symmetrically fixedly connected to side plates 57, and the inner walls of the side plates 57 on both sides are respectively opened with sliding grooves 58, and a mounting shaft 59 is slidably installed in the middle of the sliding groove 58, and the middle of the mounting shaft 59 is rotatably installed There is a pressure roller 510, and the top end of the mounting shaft 59 is fixedly connected with a spring 2 511, and the top end of the spring 2 511 is fixedly connected to the lower end surface of the connecting plate 1 56; when working, by pulling the pull rod 53 upwards, the pull rod 53 drives the connecting plate 1 56, the side plate 57, the mounting shaft 59 and the pressure roller 510 to move upwards through the connecting rod 54, and then the end of the sheet is moved to the bottom of the pressure roller 510, and the pull rod 53 is released. The connecting plate 1 56 is pushed downward by the spring 1 55, and then the pressure roller 510 is driven to move downward and pressed on the top of the sheet. By setting the spring 2 511, the pressure roller 510 can be stably pressed on the top of the sheet, and the sheet is limited to prevent the end of the sheet from curling up, and the sheet can be driven to move continuously toward the direction of the trimming component 6 through the conveyor belt 2 and the pressure roller 510.

[0027] The trimming component 6 includes a second mounting frame 61. The second mounting frame 61 is U-shaped and the bottom ends of both sides are respectively fixedly connected to both sides of the mounting plate 3. A through groove 8 is formed on the mounting plate 3 at a position below the second mounting frame 61. A lead screw 63 is rotatably installed in the middle of the second mounting frame 61. A motor 62 is fixedly installed on the side wall of the second mounting frame 61. The end of the lead screw 63 is fixedly connected to the output end of the motor 62. The thread on the lead screw 63 is bidirectional. Two connecting plates 67 are symmetrically installed on the lead screw 63. The connecting plates 67 are threadedly connected to the lead screw 63 through threaded holes 66 opened in the middle. A blade 68 is fixedly connected to the bottom of the connecting plate 67. The blade 68 is movably arranged in the through groove 8. A connecting block 64 is fixedly connected to the side wall of the connecting plate 67. A through hole 65 is opened in the middle of the connecting block 64. A slide bar is slidably installed in the through hole 65. Both ends of the slide bar are respectively fixedly connected to the inner walls of both sides of the second mounting frame 61. During operation, the motor 62 drives the lead screw 63 to rotate. Since the thread on the lead screw 63 is bidirectional, the two connecting plates 67 and the blades 68 on both sides can be driven to move towards or away from each other, so that the positions of the blades 68 on both sides can be adjusted, and thus the trimming position can be adjusted as needed. When the conveyor belt 2 conveys the sheet material to the position of the trimming component 6, the end of the sheet material contacts the blade 68, and the two sides of the sheet material are trimmed by the blade 68.

[0028] The cutting edge of the blade 68 is in the shape of a dovetail. During operation, when the sheet material contacts the blade 68, the sheet material can move to the middle position of the dovetail-shaped cutting edge, so that the upper and lower sides of the sheet material can be trimmed simultaneously, improving the trimming efficiency.

[0029] Blocking blocks 69 are fixedly connected to the opposite side walls of the two blades 68. The side of the blocking block 69 is arc-shaped. During operation, the cut-off corner materials on both sides can move together with the main body of the sheet material, and then contact the arc-shaped surface of the blocking block 69, so that the cut-off corner materials can be guided into the through groove 8, which is convenient for collecting the corner materials.

[0030] A triangular block 9 is fixedly connected to the middle side wall of the through groove 8. During operation, it plays a blocking role to prevent the main body of the trimmed sheet material from entering the through groove 8.

[0031] A driving device 4 for driving the conveyor belt 2 to rotate is fixedly installed on the side wall of the bottom bed 1. During operation, the driving device 4 controls the rotation of the conveyor belt 2 to convey the sheet material.

[0032] Embodiment 2

[0033] Please refer to Figure 6As shown, in contrast to Example 1, as another implementation of the present utility model, a collecting box 7 is slidably installed in the middle of the side of the bottom bed 1; during operation, it is convenient to collect the scraps falling from the through slot 8.

[0034] Working principle: when working, by pulling the pull rod 53 upward, the pull rod 53 drives the connecting plate 1 56, the side plate 57, the installation shaft 59 and the pressure roller 510 to move upward through the connecting rod 54, and then the end of the sheet is moved to the bottom of the pressure roller 510, the pull rod 53 is released, and the connecting plate 1 56 is pushed down by the spring 1 55, thereby driving the pressure roller 510 to move down and press on the top of the sheet. By setting the spring 2 511, the pressure roller 510 can be stably pressed on the top of the sheet, limiting the position of the sheet to prevent the end of the sheet from tilting, and the sheet can be driven to move upward through the conveyor belt 2 and the pressure roller 510. It continues to move in the direction of the trimming assembly 6. When the conveyor belt 2 transports the sheet to the position of the trimming assembly 6, the end of the sheet contacts the blade 68, so that the sheet can move to the middle position of the dovetail-shaped blade, so that the upper and lower sides of the sheet can be cut at the same time. The two sides of the sheet are cut by the blade 68, and the middle of the sheet continues to move along the middle position of the mounting plate 3 and is finally collected. The scraps cut by the blade 68 on both sides can move with the body of the sheet, and then contact the arc surface of the stop block 69, so that the cut scraps can be introduced into the through groove 8, which is convenient for collecting the scraps.

[0035] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0036] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A PP sheet trimming device, characterized in that: The invention comprises a bottom bed (1), a conveyor belt (2) is fixedly mounted on one end of the top of the bottom bed (1), a mounting plate (3) is fixedly mounted on the other end of the top of the bottom bed (1), the conveyor belt (2) is adjacent to the mounting plate (3), a limiting component (5) is arranged above one end of the conveyor belt (2) close to the mounting plate (3), the surface of a PP sheet placed on the top of the conveyor belt (2) is squeezed by the limiting component (5), thereby preventing the end of the PP sheet from warping, and a trimming component (6) for cutting the side of the PP sheet is installed on the mounting plate (3).

2. A PP sheet trimming device according to claim 1, characterized in that: The limiting assembly (5) comprises a mounting frame (51), the mounting frame (51) is arranged in a U-shape and the bottom ends on both sides are respectively fixedly connected to the sides of the bottom bed (1), through holes (52) are respectively opened on both sides of the mounting frame (51), connecting rods (54) are slidably installed inside the through holes (52) on both sides, the top end of the connecting rod (54) is fixedly connected to a pull rod (53), the bottom end of the connecting rod (54) is fixedly connected to a connecting plate (56), and a spring (55) is sleeved on the connecting rod (54), and the upper and lower ends of the spring (55) are fixedly connected to the bottom end of the connecting rod (54). The two ends are respectively fixedly connected to the mounting frame 1 (51) and the connecting plate 1 (56); the two ends of the connecting plate 1 (56) are respectively symmetrically fixedly connected with the side plates (57); the inner walls of the side plates (57) on both sides are respectively provided with sliding grooves (58); a mounting shaft (59) is slidably installed in the middle of the sliding groove (58); a pressure roller (510) is rotatably installed in the middle of the mounting shaft (59); a spring 2 (511) is fixedly connected to the top end of the end of the mounting shaft (59); the top end of the spring 2 (511) is fixedly connected to the lower end surface of the connecting plate 1 (56).

3. A PP sheet trimming device according to claim 2, characterized in that: The trimming assembly (6) comprises a second mounting frame (61), the second mounting frame (61) is arranged in a U-shape and the bottom ends on both sides are respectively fixedly connected to the two sides of the mounting plate (3), a through slot (8) is provided on the mounting plate (3) and located below the second mounting frame (61), a screw rod (63) is rotatably installed in the middle of the second mounting frame (61), a motor (62) is fixedly installed on the side wall of the second mounting frame (61), the end of the screw rod (63) is fixedly connected to the output end of the motor (62), the thread on the screw rod (63) is bidirectional, and the screw rod (63) is provided with a screw thread. A second connecting plate (67) is symmetrically installed, and the second connecting plate (67) is threadedly connected to the screw rod (63) through a threaded hole (66) opened in the middle. The bottom of the second connecting plate (67) is fixedly connected to a blade (68), and the blade (68) is movably arranged in a through groove (8). A connecting block (64) is fixedly connected to the side wall of the second connecting plate (67), and a through hole (65) is opened in the middle of the connecting block (64). A sliding rod is slidably installed in the middle of the through hole (65), and the two ends of the sliding rod are respectively fixedly connected to the inner walls on both sides of the second mounting frame (61).

4. A PP sheet trimming device according to claim 3, characterized in that: The blade (68) has a cutting edge arranged in a dovetail shape.

5. A PP sheet trimming device according to claim 4, characterized in that: Stoppers (69) are fixedly connected to the side walls opposite to the blades (68) on both sides, and the side edges of the stoppers (69) are arranged in an arc shape.

6. A PP sheet trimming device according to claim 5, characterized in that: A triangular block (9) is fixedly connected to the middle side wall of the through groove (8).

7. A PP sheet trimming device according to claim 6, characterized in that: A driving device (4) for driving the conveyor belt (2) to rotate is fixedly mounted on the side wall of the bottom bed (1).

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