Strength detection device for PE film processing

Abstract

The invention relates to the technical field of PE film strength detection, in particular to a PE film processing strength detection device which comprises a supporting seat, a chain plate conveying belt is rotatably mounted at the upper end of the inner side of the supporting seat, an inverted concave supporting frame is mounted at the upper end of the supporting seat in a crossing manner, and clamping air cylinders are fixedly mounted at the upper end of the inverted concave supporting frame in a front-back symmetry manner; an upper clamping seat is fixedly installed at the lower end of an inner rod of the clamping air cylinder, a detection air cylinder is fixedly installed at the upper end of the inverted-concave-shaped supporting frame, and a lower pressing head is fixedly installed at the lower end of a push rod of the detection air cylinder. The PE film strength detection device has the beneficial effects that the mounting of the to-be-detected PE film, the dismounting of the detected PE film and the strength detection of the PE film can be simultaneously carried out, so that the working efficiency is greatly improved; and through cooperation of the winding mechanism, the pressing mechanism, the side pressing mechanism and the locking mechanism, the two ends of the PE film can be firmly clamped and fixed.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of PE film strength detection, in particular to a strength detection device for PE film processing. BACKGROUND

[0002] PE film is a plastic film made of polyethylene resin, which has the characteristics of light weight, flexibility, chemical corrosion resistance, waterproofness, etc., and is widely used in packaging, agriculture, construction, medical treatment and other fields. In order to ensure the quality of PE film, strength detection operation needs to be performed on the film body after PE film production is completed. The PE film strength detection equipment is a special instrument for measuring the mechanical properties of PE film, which can quickly detect PE film and improve the qualified rate of PE film production.

[0003] In the process of detecting PE film by the strength detection device, the two ends of the PE film need to be clamped and fixed by the clamp first, and then the PE film is extruded from top to bottom by the lower pressing head or the puncture head, so as to complete the strength detection of the PE film. However, the clamp of the existing PE film strength detection device has the defect of movement in use. Since the thickness of the PE film is relatively thin, the clamp cannot stably fix the PE film during clamping, which leads to the phenomenon of loose or slipping of the PE film, affecting the detection data. In order to improve the stability of clamping, the clamping force is increased during detection, which causes damage to the PE film. In order to ensure the stability of clamping, some clamps are provided with anti-slip lines, which also cause damage during clamping. During detection, the damaged parts will be broken, which affects the accuracy of PE film detection. SUMMARY

[0004] The purpose of the present application is to provide a strength detection device for PE film processing to solve the problems in the background art.

[0005] To achieve the above purpose, the present application provides the following technical scheme: a strength detection device for PE film processing, comprising a support seat, a chain plate conveyor belt is rotatably installed on the upper end of the inner side of the support seat, an inverted concave support frame is installed across the upper end of the support seat, a clamping air cylinder is fixedly installed on the upper end of the inverted concave support frame in front and back symmetry, an upper clamping seat is fixedly installed on the lower end of the inner rod of the clamping air cylinder, a detection air cylinder is fixedly installed on the upper end of the inverted concave support frame, and a lower pressing head is fixedly installed on the lower end of the push rod of the detection air cylinder. The plurality of clamping mechanisms for clamping the PE film are equidistantly mounted on the outer side of the chain plate conveyor belt, the clamping mechanism is mounted on the chain plate of the chain plate conveyor belt, the clamping mechanism comprises two groups of support assemblies symmetrically and fixedly mounted on the outer side of the chain plate, the number of each group of support assemblies is two, the two support assemblies of each group are symmetrically mounted on the chain plate, and the two groups of support assemblies are symmetrically arranged in front of and behind the lower clamping seat fixedly connected with the chain plate, the two groups of support assemblies are symmetrically arranged in front of and behind the lower clamping seat fixedly connected with the chain plate, and the two groups of support assemblies are symmetrically arranged in front of and behind the lower clamping seat fixedly connected with the chain plate.

[0006] As a further scheme of the application, the support assembly comprises a support side plate fixedly mounted on the chain plate, a groove is formed in the side surface of the support side plate, and a fixed plate is fixedly mounted on the side surface of the support side plate; a positioning groove is formed in the upper end of the fixed plate; the winding mechanism is rotatably mounted between the two fixed plates symmetrically arranged on the left and right; and a side pressing mechanism is mounted between the two fixed plates symmetrically arranged on the left and right and on the side of the winding mechanism.

[0007] As a further scheme of the application, the winding mechanism comprises a winding column rotatably mounted between the two fixed plates symmetrically arranged on the left and right; a penetrating slot is formed in the side surface of the winding column; inwardly recessed arc-shaped grooves and convex limiting grooves are respectively formed in the two symmetrical inner side surfaces of the penetrating slot; a pressing mechanism for locking one end of the PE film is mounted in the convex limiting groove; rotating shafts are symmetrically fixedly connected to the left and right ends of the winding column; the rotating shafts are rotatably connected to the adjacent fixed plates; the rotating shafts penetrate the fixed plates and extend to the outside; ratchets are fixedly sleeved to the ends of the rotating shafts away from the winding column; and the locking mechanism is arranged above the ratchets.

[0008] As a further scheme of the application, the pressing mechanism comprises a strip-shaped plate slidably mounted in the convex limiting groove; a pressing strip is fixedly mounted on the side of the strip-shaped plate close to the arc-shaped groove; the pressing strip penetrates the convex limiting groove and extends into the penetrating slot; a plurality of pressing spring sheets are equidistantly fixedly mounted on the side of the strip-shaped plate away from the pressing strip; the side of the pressing spring sheet abuts against the inner side wall of the convex limiting groove; a pull rod is slidably inserted into the penetrating slot and symmetrically arranged on the left and right sides of the winding column; one end of the pull rod penetrates the winding column and extends into the convex limiting groove; and the end of the pull rod in the convex limiting groove is fixedly connected with the strip-shaped plate.

[0009] As a further scheme of the application, the side pressing mechanism comprises a concave side bracket arranged on the side of the winding column; the two ends of the concave side bracket are respectively fixedly connected with the adjacent fixed plates; a side pressing seat is arranged on the inner side of the concave side bracket and on the side of the winding column; a curved surface is arranged on the side of the side pressing seat close to the winding column; a plurality of slide rods are equidistantly fixedly mounted on the side of the side pressing seat away from the winding column; a side pressing spring is sleeved on each slide rod; and one end of each slide rod penetrates the concave side bracket and is fixedly sleeved with a limiting ring.

[0010] As a further scheme of the present application, the locking mechanism comprises a reverse concave plate fixedly installed on the side surface of the fixed plate, a guide groove symmetrically formed on the inner side of the reverse concave plate, a lifting bolt threadedly installed on the upper end of the reverse concave plate, the lower end of the lifting bolt extending downward to the inner side of the reverse concave plate, a lifting seat rotatably installed on the lower end of the lifting bolt through a pin shaft, guide blocks symmetrically fixedly connected on the front and back sides of the lifting seat, a contraction groove recessed upward on the lower end of the lifting seat, a lifting groove symmetrically and laterally formed on the inner side wall of the contraction groove, and a locking assembly installed in the contraction groove.

[0011] As a further scheme of the present application, the lifting seat is slidably connected with the inner side wall of the reverse concave plate, and the guide blocks are slidably connected with the guide groove.

[0012] As a further scheme of the present application, the locking assembly comprises a lifting connecting block slidably installed in the contraction groove, lifting blocks symmetrically fixedly connected on the left and right sides of the lifting connecting block, the lifting blocks being slidably connected with the adjacent lifting grooves, a locking spring plate fixedly installed on the upper end of the lifting connecting block, the upper side of the locking spring plate abutting against the top of the contraction groove, and a pawl fixedly installed on the lower end of the lifting connecting block, the pawl being engaged with the ratchet wheel.

[0013] As a further scheme of the present application, a pushing mechanism is installed above the winding column, the two ends of the pushing mechanism being distributed on the side surfaces of the two support assemblies symmetrically, a circular rod being installed on each of the two rotating shafts at the two ends of the winding column, and a gear and a knob being fixedly sleeved on the circular rod from inside to outside.

[0014] As a further scheme of the present application, the pushing mechanism comprises a concave frame arranged above the winding column, a toothed plate fixedly connected below each end of the concave frame, the teeth of the toothed plate being engaged with the gear, a sliding seat fixedly connected on the side of the toothed plate close to the support side plate, a light rod fixedly connected in the recess, the sliding seat being slidably sleeved on the light rod, the sliding seat being slidably connected with the recess, a lower pressing spring sleeved on the upper end of the light rod, the two ends of the lower pressing spring abutting against the upper end of the recess and the upper end of the sliding seat, respectively, and a positioning support rod rotatably installed in the concave frame through a hinge symmetrically left and right.

[0015] The present application has the following advantages: 1. The installation of the PE film to be detected, the disassembly of the PE film after detection, and the strength detection of the PE film can be simultaneously performed, so that the work efficiency is greatly improved.

[0016] 2、When the PE film is installed, the two ends of the PE film are inserted into the two insertion slots of the winding columns respectively, and the end of the PE film is locked in the insertion slot through the pressing mechanism; then the winding mechanism is driven to rotate through the pushing mechanism, so that the winding column winds the PE film, and the two ends of the PE film are wound on the side of the two winding columns through the cooperation of the two winding mechanisms in the clamping mechanism, until the PE film is in a tight state, at which time the PE film is horizontally and tightly placed above the chain plate; in the winding process, the PE film can be tightly wound on the winding column through the side pressing mechanism, so as to prevent the PE film from being loosely wound on the winding column and affecting the later detection; at the same time, the locking mechanism is arranged to prevent the winding mechanism from reversing, so as to prevent the PE film wound on the winding column from being loose and wrinkled, thereby completing the clamping and fixing of the PE film.

[0017] 3、When detecting, the inner rod of the clamping cylinder is first extended downward, the inner rod drives the upper clamping seat to move downward, and the upper clamping seat is clamped on the top of the PE film; through the cooperation of the winding mechanism, the pressing mechanism, the side pressing mechanism and the locking mechanism, the two ends of the PE film can be clamped and fixed firmly, and the PE film is clamped and fixed again through the cooperation of the lower clamping seat and the upper clamping seat, which can effectively prevent the PE film from loosening or slipping during the detection of the strength of the PE film, and the clamping mechanism of the application will not damage the PE film, thereby ensuring the accuracy of the detection of the strength of the PE film; then the push rod of the detection cylinder is extended downward to move the lower pressing head downward, and the PE film is extruded downward by the lower pressing head, so as to realize the detection of the strength of the PE film.

[0018] 4、When the detected PE film is discharged, the lifting bolt is first used to drive the lifting seat to move upward to the uppermost end of the inner side of the inverted concave plate, at which time the lifting seat drives the locking assembly to move upward to the uppermost position, so that the pawl in the locking assembly is separated from the ratchet wheel, that is, the pawl will not hinder the reverse rotation of the ratchet wheel; at this time, the pushing mechanism is pulled upward, so that the pushing mechanism drives the winding mechanism to reverse, that is, the PE film wound on the winding column can be dispersed; then the pull rod is pulled, so that the pressing mechanism is loosened to lock the PE film, that is, the PE film can be pulled out downward from the insertion slot, and the disassembly of the PE film is completed. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a strength detection device structure perspective view of the PE film processing of the application; Figure 2 It is a structure schematic view of the PE film in a loose state before clamping of the application; Figure 3 It is a structure schematic view of the PE film in a tight state after clamping of the application; Figure 4 It is a local structure sectional view of the clamping mechanism of the application; Figure 5 It is Figure 4Structure schematic view of the clamping mechanism in A; Figure 6 Structure side view of the clamping mechanism in the application; Figure 7 Structure schematic view of the clamping mechanism in A; Figure 6 Structure schematic view of the clamping mechanism in A; Figure 8 Structure schematic view of the clamping mechanism in A; Figure 9 Structure schematic view of the clamping mechanism in A; Figure 10 Structure schematic view of the clamping mechanism in A; Figure 11 Structure schematic view of the clamping mechanism in A.

[0020] In the figure: 1, support seat; 11, chain plate conveyor belt; 12, lower clamping seat; 13, inverted concave support frame; 14, clamping cylinder; 15, upper clamping seat; 16, detection cylinder; 17, lower pressing head; 2, support side plate; 21, groove; 22, fixed plate; 23, positioning groove; 3, winding column; 31, through slot; 32, convex limiting groove; 33, rotating shaft; 34, ratchet wheel; 4, strip plate; 41, pressing strip; 42, pressing spring piece; 43, pull rod; 44, concave side support; 45, side pressing seat; 46, slide rod; 47, side pressing spring; 5, round rod; 51, gear; 52, knob; 53, concave frame; 54, toothed plate; 55, slide seat; 56, light rod; 57, lower pressing spring; 58, positioning support rod; 6, inverted concave plate; 61, guide groove; 62, lifting bolt; 63, lifting seat; 64, guide block; 65, contraction groove; 66, lifting groove; 7, lifting connecting block; 71, lifting block; 72, locking spring piece; 73, ratchet. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the application will be clearly and completely described below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, rather than all the embodiments of the application. Based on the embodiments in the application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the application.

[0022] Please refer to Figures 1 to 11The application provides a technical scheme: a strength detection device for PE film processing, which comprises a supporting seat 1, a chain plate conveying belt 11 is rotatably installed at the upper end of the inner side of the supporting seat 1, transmission rollers are symmetrically installed at the two ends of the inner cavity of the chain plate conveying belt 11, the transmission rollers are rotatably installed at the two ends of the inner side of the supporting seat 1 through rotating shafts, the transmission rollers are driven by motor shafts of step motors installed on the side of the supporting seat 1, an inverted concave supporting frame 13 is installed across the upper end of the supporting seat 1, clamping air cylinders 14 are fixedly installed on the upper end of the inverted concave supporting frame 13 in a front-rear symmetry mode, upper clamping seats 15 are fixedly installed at the lower end of the inner rod of the clamping air cylinders 14, a detection air cylinder 16 is fixedly installed at the upper end of the inverted concave supporting frame 13, and a lower pressing head 17 is fixedly installed at the lower end of the push rod of the detection air cylinder 16. The clamping air cylinders 14 and the detection air cylinder 16 are both installed through the top of the inverted concave supporting frame 13, the lower end of the inner rod of the clamping air cylinder 14 and the lower end of the push rod of the detection air cylinder 16 both extend to the inner side of the inverted concave supporting frame 13, and the lower end of the inner rod of the clamping air cylinder 14 and the lower end of the push rod of the detection air cylinder 16 are both above the chain plate conveying belt 11; the lower pressing head 17 is between the two upper clamping seats 15, and the two upper clamping seats 15 are distributed on the front and back sides of the lower pressing head 17 in a front-rear symmetry mode. A plurality of clamping mechanisms for clamping PE films are equidistantly installed on the outer side of the chain plate conveying belt 11, the clamping mechanisms are installed on the chain plates of the chain plate conveying belt 11, the clamping mechanism comprises two groups of supporting assemblies which are fixedly installed on the outer side of the chain plate in a front-rear symmetry mode, the number of each group of supporting assemblies is two, the two supporting assemblies of each group are installed on the chain plate in a left-right symmetry mode, a lower clamping seat 12 is arranged between the two groups of supporting assemblies in a front-rear symmetry mode, the lower clamping seat 12 is fixedly connected with the chain plate, when the clamping mechanism moves below the inner side of the inverted concave supporting frame 13, the two lower clamping seats 12 are respectively aligned with the two upper clamping seats 15 in a one-to-one up-down mode, a winding mechanism for winding PE films is rotatably installed between the two supporting assemblies of each group, and locking mechanisms for preventing reverse rotation are symmetrically installed at the left and right ends of the winding mechanism.

[0023] The chain plate conveying belt 11 is driven by the step motor, and each time the chain plate conveying belt 11 stops, one clamping mechanism is always in the inner side of the inverted concave supporting frame 13, the clamping mechanism is sequentially moved to the inner side of the inverted concave supporting frame 13 by the chain plate conveying belt 11, and the movement is repeated; one end of the supporting seat 1 is a feeding area, and the other end of the supporting seat 1 is a discharging area.

[0024] Please refer to Figure 2 、 Figure 3 、 Figures 8 to 10The support assembly comprises a support side plate 2 fixedly installed on the chain plate, a groove 21 is formed in the side surface of the support side plate 2, a fixing plate 22 is fixedly installed on the side surface of the support side plate 2, the fixing plate 22 is arranged in a staggered manner with the groove 21, a positioning groove 23 is formed in the upper end of the fixing plate 22, and the winding mechanism is rotatably installed between the two fixing plates 22 which are symmetrical to each other.

[0025] The winding mechanism comprises a winding column 3 rotatably installed between the two fixing plates 22 which are symmetrically distributed, a penetrating slot 31 is formed in the side surface of the winding column 3, inwardly recessed arc-shaped grooves and convex limiting grooves 32 are respectively formed in the two symmetrical inner side surfaces of the penetrating slot 31, a pressing mechanism for locking one end of the PE film is installed in the convex limiting groove 32, rotating shafts 33 are symmetrically and fixedly connected to the left and right ends of the winding column 3, the rotating shafts 33 are rotatably connected to the adjacent fixing plates 22, the rotating shafts 33 penetrate through the fixing plates 22 and extend to the outside, ratchets 34 are fixedly sleeved to the ends of the rotating shafts 33 away from the winding column 3, and the locking mechanisms are arranged above the ratchets 34.

[0026] The two ends of the PE film are clamped and fixed by the clamping mechanism. When clamping, one end of the PE film is first inserted into the penetrating slot 31 from bottom to top, and then the one end of the PE film is locked by the pressing mechanism and the arc-shaped groove. By operating in this way, the two ends of the PE film are locked respectively. At this time, the two winding columns 3 at the two ends of the PE film are rotated, so that the two ends of the PE film are wound around the side surfaces of the two winding columns 3 respectively, until the PE film is in a tight state. At this time, the PE film is horizontally and tightly placed above the chain plate; in the process of winding the PE film, the PE film is tightly wound on the winding column 3 by the side pressing mechanism, thereby completing the preliminary locking of the PE film, and the lower side surface of the PE film is in contact with the upper end of the lower clamping seat 12.

[0027] Please refer to Figure 4 、 Figure 8 and Figure 9 The pressing mechanism comprises a strip-shaped plate 4 slidably installed in the convex limiting groove 32, a pressing strip 41 is fixedly installed on the side of the strip-shaped plate 4 close to the arc-shaped groove, one side of the pressing strip 41 penetrates through the convex limiting groove 32 and extends into the penetrating slot 31, one end of the pressing strip 41 is curved, the curvature of the curved surface is the same as the curvature of the arc-shaped groove, a plurality of pressing spring sheets 42 are equidistantly and fixedly installed on the side of the strip-shaped plate 4 away from the pressing strip 41, one side of the pressing spring sheet 42 is in abutment with the inner side wall of the convex limiting groove 32, a pull rod 43 is slidably and insertedly arranged on the side surface of the winding column 3, one end of the pull rod 43 penetrates through the winding column 3 and extends into the convex limiting groove 32, and one end of the pull rod 43 in the convex limiting groove 32 is fixedly connected with the strip-shaped plate 4.

[0028] Before one end of the PE film is inserted into the penetrating slot 31 from bottom to top, the pull rod 43 is pulled to make the strip-shaped plate 4 drive the compression strip 41 to shrink into the convex limiting slot 32, and the compression spring 42 is compressed by the strip-shaped plate 4. At this time, one end of the PE film is inserted into the penetrating slot 31 from bottom to top, which does not hinder the insertion of the PE film. When the end of the PE film is about to pass through the penetrating slot 31 or the end of the PE film passes through the arc-shaped slot, the insertion of the PE film into the penetrating slot 31 is stopped, the pull rod 43 is loosened, the strip-shaped plate 4 is pushed to move under the elastic force of the compression spring 42, the strip-shaped plate 4 drives the compression strip 41 to move, one side of the compression strip 41 extends from the convex limiting slot 32 and moves into the arc-shaped slot, and the compression strip 41 pushes the PE film to bend into the arc-shaped slot when moving, until the two sides of the PE film are in close contact with the inner side wall of the arc-shaped slot and the side of the compression strip 41 respectively. At this time, the end of the PE film is locked by the compression strip 41 and the arc-shaped slot.

[0029] Please refer to Figure 4 and Figure 9 , the side pressing mechanism includes a concave side bracket 44 arranged on the side of the winding column 3, both ends of the concave side bracket 44 are fixedly connected with the adjacent fixed plate 22, the inner side of the concave side bracket 44 is provided with a side pressing seat 45 on the side of the winding column 3, the side close to the winding column 3 of the side pressing seat 45 is provided with a curved surface, a plurality of slide rods 46 are fixedly installed on the side away from the winding column 3 of the side pressing seat 45 at equal intervals, a side pressing spring 47 is sleeved on each slide rod 46, and one end of each slide rod 46 penetrates through the concave side bracket 44 and is fixedly sleeved with a limiting ring.

[0030] The slide rod 46 is slidably connected with the concave side bracket 44, both ends of the side pressing spring 47 are in abutment with the concave side bracket 44 and the side pressing seat 45, and the side pressing spring 47 applies an elastic force to the side pressing seat 45.

[0031] When the PE film is wound on the winding column 3, the side pressing seat 45 presses the PE film, so that the PE film is tightly wound on the winding column 3.

[0032] Please refer to Figures 4 to 7 , Figure 11 , the locking mechanism includes an inverted concave plate 6 fixedly installed on the side of the fixed plate 22, guide grooves 61 are symmetrically formed in the inner side of the inverted concave plate 6, a lifting bolt 62 is threadedly installed at the upper end of the inverted concave plate 6, the lower end of the lifting bolt 62 extends downward to the inner side of the inverted concave plate 6, a lifting seat 63 is rotatably installed at the lower end of the lifting bolt 62 through a pin shaft, guide blocks 64 are fixedly connected to the front and rear sides of the lifting seat 63 in a symmetrical manner, a contraction groove 65 is recessed upward at the lower end of the lifting seat 63, lifting grooves 66 are symmetrically and longitudinally formed in the inner side wall of the contraction groove 65, and a locking assembly is installed in the contraction groove 65.

[0033] The lifting seat 63 is connected with the inner side wall of the concave-convex plate 6 in up-down sliding mode, and the guide block 64 is connected with the guide groove 61 in up-down sliding mode.

[0034] By rotating the lifting bolt 62 in forward or reverse direction, the lifting bolt 62 moves upward or downward along the concave-convex plate 6. When the lifting bolt 62 moves up and down, the lifting seat 63 moves up and down along the inner side of the concave-convex plate 6, and the lifting seat 63 drives the guide block 64 to move up and down along the guide groove 61, so that the lifting seat 63 can drive the locking assembly to move up and down stably.

[0035] The locking assembly comprises a lifting connecting block 7 which is installed in the contraction groove 65 in up-down sliding mode. The lifting connecting block 7 is symmetrically connected with lifting blocks 71 on the left and right sides. The lifting blocks 71 are connected with the adjacent lifting grooves 66 in up-down sliding mode. The lifting connecting block 7 is fixedly installed with a locking spring 72 at the upper end. The upper side of the locking spring 72 is in abutment with the top of the contraction groove 65. The lower end of the lifting connecting block 7 is fixedly installed with a pawl 73 which is connected with the ratchet wheel 34.

[0036] When the lifting bolt 62 moves downward to the lowermost position, the lifting seat 63 drives the locking assembly to move downward to the lowermost position. At this time, the pawl 73 is connected with the ratchet wheel 34. When the winding column 3 winds the PE film, the winding column 3 drives the ratchet wheel 34 to rotate through the rotating shaft 33. At this time, the ratchet wheel 34 can rotate and cannot rotate reversely. When the ratchet wheel 34 rotates, the ratchet wheel 34 drives the pawl 73 to move upward, the pawl 73 drives the lifting connecting block 7 to move upward along the contraction groove 65, the lifting connecting block 7 drives the lifting blocks 71 to move upward along the lifting grooves 66, and the lifting connecting block 7 extrudes the locking spring 72. Under the action of the elasticity of the locking spring 72, the lifting connecting block 7 and the pawl 73 always keep the tendency of moving downward. When the winding column 3 stops, at this time, the ratchet wheel 34 stops synchronously. Under the action of the elasticity of the locking spring 72, the lifting connecting block 7 drives the pawl 73 to move downward, so that the pawl 73 is connected with the ratchet wheel 34, preventing the ratchet wheel 34 from rotating reversely, and further preventing the winding column 3 from rotating reversely, so as to prevent the PE film wound on the winding column 3 from loosening and wrinkling.

[0037] When it is needed to take down the PE film wound on the winding column 3, the lifting bolt 62 drives the lifting seat 63 to move upward to the uppermost position of the inner side of the concave-convex plate 6. At this time, the lifting seat 63 drives the locking assembly to move upward to the uppermost position, so that the pawl 73 in the locking assembly is separated from the ratchet wheel 34, that is, the pawl 73 does not hinder the reverse rotation of the ratchet wheel 34. At this time, the winding column 3 is reversed, so that the PE film wound on the winding column 3 is loosened. Then, the pull rod 43 is pulled, so that the locking of the PE film by the pressing mechanism is released. Thus, the PE film can be pulled out downward from the penetrating groove 31, and the dismounting of the PE film is completed.

[0038] Through the cooperation of the winding mechanism, the pressing mechanism, the side pressing mechanism and the locking mechanism, the two ends of the PE film can be clamped and fixed firmly. First, the end of the PE film is locked in the winding column 3 through the pressing mechanism, and then the end of the PE film is wound through the winding mechanism, so that the PE film is in a tight state. The PE film can be tightly wound on the winding column 3 through the side pressing mechanism, and the locking mechanism prevents the winding column 3 from reversing. Through the cooperation of the two winding mechanisms, the PE film can be kept in a tight state.

[0039] When the chain plate moves to the inside of the inverted concave support frame 13 with the clamping mechanism driving the tight PE film, the inner rod of the clamping cylinder 14 extends downward, the inner rod drives the upper clamping seat 15 to move downward, and the PE film is clamped and fixed again through the cooperation of the lower clamping seat 12 and the upper clamping seat 15. Then the push rod of the detection cylinder 16 extends downward to make the lower pressing head 17 move downward, and the PE film is extruded downward by the lower pressing head 17, so as to realize the detection of the strength of the PE film.

[0040] Please refer to Figures 2 to 4 、 Figure 6 and Figure 10 , the upper end of the winding column 3 is provided with a pushing mechanism, the two ends of the pushing mechanism are distributed on the side surfaces of the two symmetrical support assemblies, and the two rotating shafts 33 at the two ends of the winding column 3 are each provided with a round rod 5. The round rod 5 is fixedly connected to the end of the rotating shaft 33 away from the winding column 3, and the round rod 5 is coaxial with the winding column 3. The round rod 5 is sequentially and fixedly sleeved with a gear 51 and a knob 52 from inside to outside.

[0041] The pushing mechanism comprises a concave frame 53 arranged above the winding column 3, and a toothed plate 54 fixedly connected to the lower ends of the two ends of the concave frame 53. The teeth of the toothed plate 54 are engaged with the gear 51. The concave frame 53 is fixedly connected to the side of the toothed plate 54 close to the support side plate 2. A sliding seat 55 is fixedly connected to the concave frame 53. A light rod 56 is fixedly connected in the groove 21. The sliding seat 55 is slidably sleeved on the light rod 56. The sliding seat 55 is slidably connected to the groove 21. The upper end of the light rod 56 is sleeved with a downward pressing spring 57. The two ends of the downward pressing spring 57 are respectively in abutment with the upper end of the groove 21 and the upper end of the sliding seat 55. The downward pressing spring 57 applies a downward elastic force to the sliding seat 55. The upper end of the inner side of the concave frame 53 is rotatably installed with a positioning support rod 58 through a hinge.

[0042] When it is necessary to remove the PE film wound on the winding column 3, the locking of the ratchet 34 is released, the movable concave frame 53 is pulled upward, the concave frame 53 drives the toothed plate 54 to move upward, the toothed plate 54 drives the gear 51 to rotate, the gear 51 drives the rotating shaft 33 to rotate through the round rod 5, and the rotating shaft 33 drives the winding column 3 to reverse, so that the PE film wound on the winding column 3 can be dispersed. When the toothed plate 54 moves upward, the toothed plate 54 drives the sliding seat 55 to slide upward along the light pole 56, and at the same time, the sliding seat 55 extrudes the downward pressing spring 57; When the concave frame 53 moves upward to the uppermost position, the positioning support rod 58 is rotated to be vertical, at this time, the concave frame 53 is slowly released, and under the action of the elastic force of the downward pressing spring 57, the sliding seat 55 moves downward along the light pole 56 by a distance, the sliding seat 55 drives the concave frame 53 to move downward by a distance through the toothed plate 54, the concave frame 53 drives the lower end of the positioning support rod 58 to be inserted into the positioning groove 23, at this time, the positioning support rod 58 supports the concave frame 53, so that the concave frame 53 cannot continue to move downward, and at the same time, the toothed plate 54 and the sliding seat 55 also cannot continue to move downward, at this time, the PE film on the winding column 3 can be disassembled and assembled.

[0043] When it is needed to wind the PE film on the winding column 3, first, the end of the PE film is locked in the winding column 3, the concave frame 53 is pulled upward by a distance, so that the positioning support rod 58 can be rotated upward, that is, the positioning support rod 58 is not aligned with the positioning groove 23 upward and downward, and then the locking mechanism is moved downward, so that the locking assembly is clamped with the ratchet wheel 34; At this time, the concave frame 53 is slowly released downward, under the action of the elastic force of the downward pressing spring 57, the sliding seat 55 moves downward along the light pole 56, the sliding seat 55 drives the toothed plate 54 to move downward, the toothed plate 54 drives the gear 51 to rotate, the gear 51 drives the rotating shaft 33 to rotate through the round rod 5, and the rotating shaft 33 drives the winding column 3 to rotate, so that the winding column 3 winds the PE film.

[0044] Working principle: when working, the PE film is installed at one end of the support seat 1, the two ends of the PE film are inserted into the penetrating grooves 31 of the two winding columns 3 respectively, and the end of the PE film is locked in the penetrating grooves 31 through the pressing mechanism; At this time, the concave frame 53 is slowly released downward, under the action of the elastic force of the downward pressing spring 57, the sliding seat 55 moves downward along the light pole 56, the sliding seat 55 drives the toothed plate 54 to move downward, the toothed plate 54 drives the gear 51 to rotate, the gear 51 drives the rotating shaft 33 to rotate through the round rod 5, and the rotating shaft 33 drives the winding column 3 to rotate, so that the winding column 3 winds the PE film. At this time, the concave frame 53 is slowly released downward, under the action of the elastic force of the downward pressing spring 57, the sliding seat 55 moves downward along the light pole 56, the sliding seat 55 drives the toothed plate 54 to move downward, the toothed plate 54 drives the gear 51 to rotate, the gear 51 drives the rotating shaft 33 to rotate through the round rod 5, and the rotating shaft 33 drives the winding column 3 to rotate, so that the winding column 3 winds the PE film. When the PE film is wound on the winding column 3, the side pressing seat 45 is tightly attached to the side of the PE film under the action of the side pressing spring 47, so that the PE film can be tightly wound on the winding column 3, preventing the PE film from being loosely wound on the winding column 3 and affecting the later detection.

[0045] During the winding process of the PE film by the winding column 3, the winding column 3 drives the ratchet wheel 34 to rotate through the rotating shaft 33, and the ratchet wheel 34 drives the pawl 73 to move upward during the rotating process. Under the action of the locking spring 72, the lifting connecting block 7 and the pawl 73 always maintain a downward moving trend; When the winding column 3 stops, the ratchet wheel 34 stops at this time, and the lifting connecting block 7 drives the pawl 73 to move downward under the action of the locking spring 72, so that the pawl 73 is clamped with the ratchet wheel 34, preventing the ratchet wheel 34 from reversing, and thus the rotating shaft 33 and the winding column 3 cannot be reversed, preventing the PE film wound on the winding column 3 from being loose and wrinkled, thereby completing the clamping and fixing of the PE film.

[0046] The clamping mechanism is moved into the inverted concave support frame 13 by the chain plate conveyor belt 11 at this time. The clamping mechanism installed with the PE film moves to the lower side of the inside of the inverted concave support frame 13, and the clamping mechanism without the PE film rotates to the feeding area of the support seat 1. At this time, the clamping mechanism in the feeding area can continue to install the PE film.

[0047] At the same time, the inner rod of the clamping cylinder 14 extends downward, and the inner rod drives the upper clamping seat 15 to move downward. The PE film is clamped and fixed again by the cooperation of the lower clamping seat 12 and the upper clamping seat 15; Then the push rod of the detection cylinder 16 extends downward to make the lower pressing head 17 move downward, and the PE film is extruded downward by the lower pressing head 17, so as to realize the detection of the strength of the PE film. After the detection is completed, the inner rod of the clamping cylinder 14 is retracted, the upper clamping seat 15 moves upward, the push rod of the detection cylinder 16 is retracted, and the lower pressing head 17 moves upward, so that the upper clamping seat 15 and the lower pressing head 17 are reset.

[0048] When the clamping mechanism in the feeding area completes the feeding of the PE film, and the lower pressing head 17 completes the strength detection of the PE film, the chain plate conveyor belt 11 is operated again to move the clamping mechanism installed with the PE film to be detected to the lower side of the inside of the inverted concave support frame 13, and the clamping mechanism installed with the detected PE film is moved to the unloading area at the other end of the support seat 1, so as to unload the detected PE film.

[0049] The lifting bolt 62 drives the lifting seat 63 to move upward to the uppermost end of the inside of the inverted concave plate 6 at this time. The lifting seat 63 drives the locking assembly to move upward to the uppermost position, so that the pawl 73 in the locking assembly is separated from the ratchet wheel 34, that is, the pawl 73 will not hinder the reverse rotation of the ratchet wheel 34; At this time, the concave frame 53 is pulled upward, the toothed plate 54 drives the gear 51 to rotate, the gear 51 drives the rotating shaft 33 through the round rod 5 to rotate, the rotating shaft 33 drives the winding column 3 to reverse, that is, the PE film wound on the winding column 3 can be dispersed; When the concave frame 53 moves upward to the uppermost position, the positioning support rod 58 is rotated to be vertical, at this time, the concave frame 53 is slowly loosened, the lower end of the positioning support rod 58 is inserted into the positioning groove 23, at this time, the positioning support rod 58 supports the concave frame 53, so that the concave frame 53 cannot continue to move downward, and the toothed plate 54 and the sliding seat 55 also cannot continue to move downward; the pull rod 43 is pulled again, so that the locking of the PE film by the pressing mechanism is loosened, the PE film can be pulled out downward from the insertion slot 31, and the disassembly of the PE film is completed.

[0050] The installation of the PE film to be detected, the disassembly of the PE film after detection and the strength detection of the PE film can be carried out at the same time, without waiting for the detection of the previous PE film to be completed and disassembled before the next PE film is installed for detection, so that the work efficiency is greatly improved.

[0051] Through the cooperation of the winding mechanism, the pressing mechanism, the side pressing mechanism and the locking mechanism, the two ends of the PE film can be clamped and fixed firmly, the end of the PE film is locked in the winding column 3 through the pressing mechanism, the end of the PE film is wound through the winding mechanism, so that the PE film is in a tight state, the PE film can be tightly wound on the winding column 3 through the side pressing mechanism, and the locking mechanism prevents the winding column 3 from reversing, and the two winding mechanisms cooperate to keep the PE film in a tight state; The PE film is clamped and fixed again through the cooperation of the lower clamping seat 12 and the upper clamping seat 15, which can effectively prevent the PE film from loosening or slipping during the strength detection of the PE film, and the clamping mechanism of the application will not damage the PE film, so as to ensure the accuracy of the strength detection of the PE film.

[0052] Although the embodiments of the application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the application, the scope of the application is defined by the appended claims and their equivalents.

Claims

1. A strength testing device for PE film processing, comprising a support base (1), characterized in that: A chain conveyor belt (11) is rotatably mounted on the upper end of the inner side of the support base (1). An inverted concave support frame (13) is mounted across the upper end of the support base (1). A clamping cylinder (14) is symmetrically fixedly mounted on the upper end of the inverted concave support frame (13). An upper clamping seat (15) is fixedly mounted on the lower end of the inner rod of the clamping cylinder (14). A detection cylinder (16) is fixedly mounted on the upper end of the inverted concave support frame (13). A lower pressure head (17) is fixedly mounted on the lower end of the push rod of the detection cylinder (16). Multiple clamping mechanisms for clamping PE film are equidistantly installed on the outer side of the chain conveyor belt (11). The clamping mechanisms are installed on the chain plate of the chain conveyor belt (11). The clamping mechanism includes two sets of support components that are symmetrically fixedly installed on the outer side of the chain plate. Each set of support components consists of two components. The two support components of each set are symmetrically installed on the chain plate. A lower clamping seat (12) is symmetrically arranged between the two sets of support components. The lower clamping seat (12) is fixedly connected to the chain plate. A winding mechanism for winding PE film is rotatably installed between the two support components of each set. A locking mechanism to prevent reverse rotation is symmetrically installed at both ends of the winding mechanism.

2. The strength testing device for PE film processing according to claim 1, characterized in that: The support assembly includes a support side plate (2) fixedly installed on the chain plate. The side of the support side plate (2) has a groove (21). A fixing plate (22) is fixedly installed on the side of the support side plate (2). A positioning groove (23) is provided at the upper end of the fixing plate (22). The winding mechanism is rotatably installed between two left and right symmetrical fixing plates (22). A side pressure mechanism is installed between the two left and right symmetrical fixing plates (22) on the side of the winding mechanism.

3. The strength testing device for PE film processing according to claim 2, characterized in that: The winding mechanism includes a winding column (3) rotatably mounted between two symmetrically distributed fixed plates (22). A through slot (31) is provided through the side of the winding column (3). The two symmetrical inner sides of the through slot (31) are respectively provided with an inwardly recessed arc groove and a convex limiting groove (32). A clamping mechanism for locking one end of the PE film is installed in the convex limiting groove (32). Rotating shafts (33) are symmetrically fixedly connected to the left and right ends of the winding column (3). The rotating shafts (33) are rotatably connected to the adjacent fixed plates (22). The rotating shafts (33) pass through the fixed plates (22) and extend to the outside. A ratchet (34) is fixedly sleeved at the end of the rotating shaft (33) away from the winding column (3). The locking mechanism is distributed above the ratchet (34).

4. The strength testing device for PE film processing according to claim 3, characterized in that: The clamping mechanism includes a strip plate (4) that is slidably installed in a convex limiting groove (32). A clamping strip (41) is fixedly installed on the side of the strip plate (4) near the arc groove. One side of the clamping strip (41) passes through the convex limiting groove (32) and extends into the through slot (31). Multiple clamping springs (42) are fixedly installed at equal intervals on the side of the strip plate (4) away from the clamping strip (41). One side of the clamping springs (42) abuts against the inner wall of the convex limiting groove (32). Pull rods (43) are symmetrically slidably inserted into the side of the winding column (3). One end of the pull rod (43) passes through the winding column (3) and extends into the convex limiting groove (32). The end of the pull rod (43) in the convex limiting groove (32) is fixedly connected to the strip plate (4).

5. The strength testing device for PE film processing according to claim 3, characterized in that: The side pressure mechanism includes a concave side bracket (44) provided on the side of the winding column (3). The two ends of the concave side bracket (44) are fixedly connected to the adjacent fixing plate (22). The inner side of the concave side bracket (44) is provided with a side pressure seat (45) on the side of the winding column (3). The side pressure seat (45) is provided with a curved surface on the side close to the winding column (3). Multiple slide rods (46) are fixedly installed at equal intervals on the side of the side pressure seat (45) away from the winding column (3). Each slide rod (46) is fitted with a side pressure spring (47). One end of each slide rod (46) passes through the concave side bracket (44) and is fixedly fitted with a limit ring.

6. The strength testing device for PE film processing according to claim 3, characterized in that: The locking mechanism includes an inverted concave plate (6) fixedly installed on the side of the fixed plate (22). The inner side of the inverted concave plate (6) is symmetrically provided with guide grooves (61). The upper end of the inverted concave plate (6) is threaded with a lifting bolt (62). The lower end of the lifting bolt (62) extends downward to the inner side of the inverted concave plate (6). The lower end of the lifting bolt (62) is rotatably installed with a lifting seat (63) through a pin. The front and rear sides of the lifting seat (63) are symmetrically fixedly connected with guide blocks (64). The lower end of the lifting seat (63) is recessed upward to provide a shrinkage groove (65). The inner sidewall of the shrinkage groove (65) is symmetrically provided with a lifting groove (66). The shrinkage groove (65) is installed with a locking component.

7. The strength testing device for PE film processing according to claim 6, characterized in that: The lifting seat (63) is slidably connected to the inner wall of the inverted concave plate (6) and the guide block (64) is slidably connected to the guide groove (61).

8. The strength testing device for PE film processing according to claim 6, characterized in that: The locking assembly includes a lifting connecting block (7) that is slidably installed in the shrinkage groove (65). Lifting blocks (71) are symmetrically fixedly connected to the left and right sides of the lifting connecting block (7). The lifting blocks (71) are slidably connected to the adjacent lifting groove (66). A locking spring (72) is fixedly installed at the upper end of the lifting connecting block (7). The upper side of the locking spring (72) abuts against the top of the shrinkage groove (65). A pawl (73) is fixedly installed at the lower end of the lifting connecting block (7). The pawl (73) engages with the ratchet (34).

9. The strength testing device for PE film processing according to claim 3, characterized in that: A pushing mechanism is installed above the winding column (3). The two ends of the pushing mechanism are distributed on the sides of two symmetrical support components. A round rod (5) is installed on each of the two rotating shafts (33) at both ends of the winding column (3). A gear (51) and a knob (52) are fixedly sleeved on the round rod (5) from the inside to the outside.

10. A strength testing device for PE film processing according to claim 9, characterized in that: The pushing mechanism includes a concave frame (53) set above the winding column (3). Toothed plates (54) are fixedly connected to the lower ends of both ends of the concave frame (53). The teeth of the toothed plates (54) mesh with the gears (51). A slide block (55) is fixedly connected to the side of the toothed plates (54) near the support side plate (2). A smooth rod (56) is fixedly connected inside the groove (21). The slide block (55) slides up and down on the smooth rod (56). The slide block (55) and the groove (21) slide up and down. A compression spring (57) is sleeved on the upper end of the smooth rod (56). The two ends of the compression spring (57) abut against the upper end of the groove (21) and the upper end of the slide block (55) respectively. A positioning support rod (58) is installed on the upper end of the inner side of the concave frame (53) by hinges and rotates symmetrically left and right.

Images