Automatic cutting device for heat insulation strips

Abstract

The utility model relates to an automatic cutting device for a heat insulation strip, which comprises a material sucking and discharging assembly, a cutting assembly, a cutting assembly, a cutting assembly, a cutting assembly, a cutting assembly and a cutting assembly, and is characterized in that the input end and the output end are respectively connected with a material sucking pipe and a discharging pipe; the guide assembly comprises a feeding cylinder, a discharging cylinder and a switching unit, and the switching unit drives the discharging cylinder to move between the suction station and the discharge station; the cutting assembly comprises a cutter and a driving unit, and the driving unit drives the cutter to move; and the collecting box is used for collecting the heat insulation strips discharged from the discharging barrel below the discharging station. According to the automatic cutting device for the heat insulation strips, the switching unit controls the discharging barrel to be switched between the suction station and the discharging station in a reciprocating mode, so that the discharging barrel communicates with the suction pipe and the discharging pipe, the air pump is matched, the heat insulation strips are conveniently sucked to achieve automatic feeding, cutting is achieved through the cutting assembly, and the heat insulation strips are discharged into the collecting box to achieve discharging; the structure is simple, cost is reduced, and cutting efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of heat insulation strip production, in particular to an automatic cutting device for heat insulation strips. Background Art

[0002] After the heat insulation strip is subjected to material selection, drying and dehumidification, heating after being mixed according to a specific ratio, extrusion processing to control the forming shape, and cooling and solidification, it needs to be cut. After the long strip-shaped heat insulation strip is cut by a cutting device, it is then subjected to packaging processing.

[0003] In the prior art, in order to reduce the workload of workers and improve the cutting efficiency, the cutting device usually consists of a transmission component, a cutting component, a fastening component and a discharging component. After the heat insulation strip is transmitted a certain length by the transmission component, the fastening component fastens the vicinity of the cutting part of the heat insulation strip, and then the cutting component cuts it. After removing the fastening component from the cut heat insulation strip, the cut heat insulation strip is conveyed into a collection box by the discharging component. Although the above device can realize the automatic cutting of the heat insulation strip, the device structure is complex, and multiple components need to cooperate and run simultaneously, resulting in an increase in the cutting cost of the device, low cutting efficiency, and when cutting, the device usually can only cut a single heat insulation strip, further reducing the cutting efficiency.

[0004] Therefore, it is necessary to improve the cutting device for heat insulation strips in the prior art. Summary of the Utility Model

[0005] For this reason, the technical problem to be solved by the utility model is to overcome the technical problems of complex structure, high cutting cost and low cutting efficiency in the prior art.

[0006] To solve the above technical problems, the utility model provides an automatic cutting device for heat insulation strips, including:

[0007] A material suction and discharging component, the material suction and discharging component includes an air pump, and the input end and the output end of the air pump are respectively connected with a material suction pipe and a material discharging pipe;

[0008] A guiding component, the guiding component includes a feeding cylinder, a discharging cylinder and a switching unit. The inner cavities of the feeding cylinder and the discharging cylinder are both adapted to the heat insulation strip. The switching unit drives the discharging cylinder to move between a material suction station and a material discharging station. Under the material suction station, one end of the discharging cylinder is hermetically attached to the end of the material suction pipe away from the air pump, and the other end is in clearance fit with the feeding cylinder and the feeding cylinder is directly opposite to the discharging cylinder. Under the material discharging station, one end of the discharging cylinder is hermetically attached to the end of the material discharging pipe away from the air pump, and the other end is separated from the closed curved surface where the outer circumference of the feeding cylinder is located;

[0009] Cutting assembly, the cutting assembly includes a cutter and a driving unit, the driving unit drives the cutter to move so as to cut the heat insulation strip between the discharge cylinder and the feed cylinder after the discharge cylinder moves to the material suction station;

[0010] Collection box, the collection box is used to collect the heat insulation strips discharged from the discharge cylinder under the discharge station.

[0011] As a further improvement of the present utility model, in order to facilitate the smooth passage of the heat insulation strip through the feed cylinder and the discharge cylinder and facilitate material suction and discharge, both the feed cylinder and the discharge cylinder are horizontally arranged.

[0012] As a further improvement of the present utility model, in order to improve the cutting efficiency, at least two of the feed cylinder, the discharge cylinder, the material suction pipe and the discharge pipe are provided and are arranged in one-to-one correspondence with each other.

[0013] As a further improvement of the present utility model, in order to reduce the size of the equipment and at the same time facilitate the docking of the discharge cylinder with the feed cylinder, the material suction pipe and the discharge pipe, both the feed cylinder and the discharge cylinder are arranged at intervals along the horizontal direction.

[0014] As a further improvement of the present utility model, in order to be beneficial to shortening the moving path length of the discharge cylinder, so as to further reduce the size of the equipment and at the same time facilitate the rapid switching of the discharge cylinder between the material suction station and the discharge station, the intervals between adjacent feed cylinders and the intervals between adjacent discharge cylinders are both greater than the length dimension and the width dimension of the cross section of the heat insulation strip, and the feed cylinder and the discharge cylinder are arranged at equal intervals along the horizontal direction perpendicular to the axis of the two.

[0015] As a further improvement of the present utility model, in order to facilitate the cutting of the heat insulation strip, the cutting edge of the cutter is downward, and the driving unit drives the cutter to move in the vertical direction.

[0016] As a further improvement of the present utility model, in order to improve the cutting accuracy, the feed cylinder is slidably arranged along its own length direction, the feed cylinder is connected with an elastic member for reducing the gap between itself and the discharge cylinder under the material suction station, a trigger assembly is arranged between the cutter and the feed cylinder, the trigger assembly is used to increase the gap between the feed cylinder and the discharge cylinder under the material suction station, so that the thickness of the cutter is less than or equal to the width of the gap, and the moving path of the cutter intersects with the gap.

[0017] As a further improvement of the present utility model, in order to automatically and flexibly adjust the gap between the feeding cylinder and the discharging cylinder according to the position of the cutting knife, the triggering assembly includes a lifting trigger member fixedly connected to the cutting knife and a translation trigger member fixedly connected to the feeding cylinder. One side of the translation trigger member adjacent to the cutting knife includes a guiding inclined surface and a vertical surface. The guiding inclined surface is inclined, and the vertical surface is arranged in the vertical direction between the guiding inclined surface and the feeding cylinder. The moving track of the lifting trigger member is in contact with the guiding inclined surface and the vertical surface.

[0018] As a further improvement of the present utility model, in order to reduce the resistance suffered by the cutting knife when descending, the lifting trigger member is a lifting trigger roller horizontally arranged on the cutting knife and rotating around its own axis.

[0019] As a further improvement of the present utility model, in order to facilitate the replacement and maintenance of the cutting knife, the cutting knife is detachably arranged at the output end of the driving unit.

[0020] Compared with the prior art, the automatic cutting device for heat insulation strips of the present utility model controls the discharging cylinder to reciprocally switch between the material suction station and the material discharging station through the switching unit, so that the discharging cylinder is respectively communicated with the material suction pipe and the material discharging pipe. Cooperating with the air pump, it is convenient to attract the heat insulation strips to achieve automatic feeding, use the cutting assembly to perform cutting, and discharge the heat insulation strips into the collection box to achieve discharging. The structure is simple, the cost is reduced, and the cutting efficiency is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to make the content of the present utility model be more clearly understood, the following further details the present utility model according to the specific embodiments of the present utility model and in conjunction with the attached drawings, wherein:

[0022] Figure 1 is the structural schematic diagram of the present utility model;

[0023] Figure 2 is Figure 1 the side view of

[0024] Figure 3 is Figure 1 the top view of

[0025] Figure 4 is Figure 1 the exploded schematic diagram of

[0026] Figure 5 is the structural schematic diagram of another use state of the present utility model;

[0027] Figure 6 is Figure 5 the top view of

[0028] Figure 7It is a schematic structural diagram of the material suction and discharge assembly of the present utility model;

[0029] Figure 8 It is Figure 7 an explosion schematic diagram of;

[0030] Figure 9 It is a schematic structural diagram of the connection between the feed cylinder and the sliding unit of the present utility model;

[0031] Figure 10 It is Figure 9 an explosion schematic diagram of;

[0032] Figure 11 It is a schematic structural diagram of the connection between the discharge cylinder and the switching unit of the present utility model;

[0033] Figure 12 It is Figure 11 an explosion schematic diagram of;

[0034] Figure 13 It is a schematic structural diagram of the cutting assembly of the present utility model;

[0035] Figure 14 It is Figure 13 an explosion schematic diagram of;

[0036] Explanation of reference numerals in the drawings of the specification: 1. Material suction and discharge assembly; 11. Air pump; 12. Suction housing; 13. Suction pipe; 14. Exhaust housing; 15. Discharge pipe; 16. Base; 2. Feed cylinder; 21. Translation trigger; 211. Guide inclined plane; 212. Vertical plane; 3. Discharge cylinder; 4. Switching unit; 41. Switching cylinder; 42. Push plate; 43. Guide rod; 44. Guide sleeve; 45. Connection frame; 46. Roller; 5. Cutting assembly; 51. Cutter; 52. Driving unit; 521. Bracket; 522. Lifting oil cylinder; 523. Guide rod; 524. Guide sleeve; 525. Installation groove; 526. Bolt; 527. Nut; 53. Lifting trigger; 6. Collection box; 7. Sliding unit; 71. Bottom plate; 72. Sliding sleeve; 73. Elastic member; 74. Slide bar; 741. End plate; 75. Fixed frame; 8. Heat insulation strip; 9. Workbench. Detailed implementation manners

[0037] The following further explains the present utility model in conjunction with the drawings and specific embodiments, so that those skilled in the art can better understand the present utility model and be able to implement it, but the embodiments cited do not limit the present utility model.

[0038] It should be noted that when an element is referred to as being "disposed on" or "fixed to" another element, it can be directly on the other element or there can be an intermediate element. When an element is referred to as being "fixed to" another element or "fixedly connected" to another element, the connection between them can be a detachable fixing method or a non-detachable fixing method. When an element is considered to be "connected" or "rotationally connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "left", "right", "up", "down" and similar expressions are only for the purpose of illustration and do not represent the only implementation.

[0039] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which this utility model belongs. The terms used in the description of this utility model herein are only for the purpose of describing specific implementations and are not intended to limit this utility model. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0040] The "first", "second", "third", etc. used in this utility model do not represent specific quantities and sequences, but are only used for name distinction.

[0041] As Figures 1 - 12 shown, the automatic cutting device for the heat insulation strip of this utility model includes:

[0042] The material suction and discharge assembly 1, the material suction and discharge assembly 1 includes an air pump 11, and the input end and the output end of the air pump 11 are respectively connected with a material suction pipe 13 and a material discharge pipe 15;

[0043] The guiding assembly, the guiding assembly includes a feeding cylinder 2, a discharging cylinder 3 and a switching unit 4. The inner cavities of the feeding cylinder 2 and the discharging cylinder 3 are both adapted to the heat insulation strip 8. The switching unit 4 drives the discharging cylinder 3 to move between the material suction station and the material discharge station. Under the material suction station, one end of the discharging cylinder 3 is hermetically attached to the end of the material suction pipe 13 away from the air pump 11, and the other end is in clearance fit with the feeding cylinder 2 and the feeding cylinder 2 is facing the discharging cylinder 3. Under the material discharge station, one end of the discharging cylinder 3 is hermetically attached to the end of the material discharge pipe 15 away from the air pump 11, and the other end is separated from the closed curved surface where the outer periphery of the feeding cylinder 2 is located;

[0044] The cutting assembly 5, the cutting assembly 5 includes a cutting knife 51 and a driving unit 52. The driving unit 52 drives the cutting knife 51 to move so as to cut the heat insulation strip 8 between the discharging cylinder 3 and the feeding cylinder 2 after the discharging cylinder 3 moves to the material suction station;

[0045] The collection box 6, the collection box 6 is used to collect the heat insulation strip 8 discharged from the discharging cylinder 3 under the discharging station.

[0046] Before using the device, insert the heat insulation strip 8 that needs to be cut and discharged into the feeding cylinder 2 from the end of the feeding cylinder 2 far away from the discharging cylinder 3.

[0047] During operation, the discharging cylinder 3 is adjusted to the material suction station through the switching unit 4, so that the discharging cylinder 3 is aligned with the feeding cylinder 2 and in clearance fit. The discharging cylinder 3 is hermetically attached to and communicated with the material suction pipe 13. In this state, the air pump 11 is started to suck out all the air in the material suction pipe 13 and discharge it through the discharge pipe 15. Since the air in the material suction pipe 13 is pumped out, a negative pressure vacuum is formed. And the inner cavities of the feeding cylinder 2 and the discharging cylinder 3 are both adapted to the heat insulation strip 8, so that after the end of the heat insulation strip 8 is attracted by the negative pressure, it moves towards the material suction pipe 13 until the end of the heat insulation strip 8 abuts against one end of the discharging cylinder 3 close to the material suction pipe 13.

[0048] Then, the cutting assembly 5 operates, and the cutter 51 is driven to move by the driving unit 52. The cutter 51 cuts the heat insulation strip 8 through the gap between the feeding cylinder 2 and the discharging cylinder 3, so that the heat insulation strip 8 is divided into two parts. One part is inside the discharging cylinder 3, which is the cut heat insulation strip 8 product, and the remaining part is the heat insulation strip 8 that still needs to be cut. The air pump 11 stops operating, as Figures 1 - 3 shown.

[0049] After that, the switching unit 4 adjusts the discharging cylinder 3 to the discharging station, so that the end of the discharging cylinder 3 is hermetically attached to and communicated with the discharge pipe 15, as Figure 5 and Figure 6 shown. The air pump 11 is started to suck in external air through the material suction pipe 13, and the external air is discharged through the discharge pipe 15, acting on the heat insulation strip 8 in the discharging cylinder 3, thereby pushing the heat insulation strip 8 out of the discharging cylinder 3. The discharged heat insulation strip 8 products are collected by the collection box 6, and the air pump 11 stops operating.

[0050] After that, the switching unit 4 adjusts the discharge cylinder 3 to the material suction station, and the air pump 11 is started. Since there is a clearance fit between the discharge cylinder 3 and the feed cylinder 2, after the air pump 11 operates, a negative pressure is formed in the suction pipe 13 inside the discharge cylinder 3, attracting the end of the heat insulation strip 8 to be cut into the discharge cylinder 3, and then cutting is performed. After the cutting is completed, the air pump 11 stops operating. Then, the switching unit 4 adjusts the discharge cylinder 3 to the discharge station, and so on in a cycle. Through the mutual cooperation of the material suction and discharge assembly 1, the guiding assembly, and the cutting assembly 5, the automatic feeding, cutting, and discharging of the heat insulation strip 8 are realized. Compared with the prior art, it is necessary to rely on the transmission device to adjust the position of the heat insulation strip 8, then use the fastening device to fix the position of the heat insulation strip 8, and then rely on the cutting device to cut it, and then discharge the cut heat insulation strip 8. The automatic cutting device of the present invention has a simple structure. By relying on the material suction and discharge assembly 1 to cooperate with the switching unit 4 to adjust the station of the discharge cylinder 3, the automatic feeding and discharging of the heat insulation strip 8 are realized, without the need for a fastening device to fix the position of the heat insulation strip 8 and remove the fastening of the heat insulation strip 8 after cutting. Therefore, the structure is simple, which is beneficial to reducing costs, and there is no need to frequently fasten and remove the fastening of the heat insulation strip 8, and the use and operation are convenient, which is further beneficial to improving the cutting efficiency of the heat insulation strip 8.

[0051] A further improvement is that both the feed cylinder 2 and the discharge cylinder 3 are horizontally arranged. The structures of both the feed cylinder 2 and the discharge cylinder 3 being horizontally arranged facilitate the heat insulation strip 8 to enter and exit the feed cylinder 2 and the discharge cylinder 3 in the horizontal direction, avoiding the increase in the influence of the gravity factor when the heat insulation strip 8 moves due to their inclination or vertical arrangement, thereby facilitating the feeding and discharging of the heat insulation strip 8.

[0052] A further improvement is that at least two of the feed cylinder 2, the discharge cylinder 3, the suction pipe 13, and the discharge pipe 15 are provided and are arranged in one-to-one correspondence with each other.

[0053] In the present invention, three of the feed cylinder 2, the discharge cylinder 3, the suction pipe 13, and the discharge pipe 15 are provided and are arranged in one-to-one correspondence with each other. After adopting the above design, it is convenient for the cutter 51 to perform cutting treatment on three heat insulation strips 8 at one time, thereby greatly improving the cutting efficiency. Of course, according to actual needs, the number of the feed cylinder 2, the discharge cylinder 3, the suction pipe 13, and the discharge pipe 15 can also be set to two or other multiple numbers.

[0054] According to the above structure, the specific structure of the material suction and discharge assembly 1 in the present invention is as Figures 7 - 8As shown in the figure, the material suction and discharge assembly 1 includes a horizontally arranged air pump 11. A base 16 is fixed below the air pump 11, and a workbench 9 is fixed below the base 16. The workbench 9 is fixed above the ground. The input end of the air pump 11 is fixedly connected and communicated with a hollow suction shell 12, and the output end is fixedly connected and communicated with a hollow exhaust shell 14. Both the suction shell 12 and the exhaust shell 14 are fixed above the base 16. One side of the suction shell 12 adjacent to the guiding assembly is fixedly connected and communicated with three horizontally extending material suction pipes 13, and one side of the exhaust shell 14 adjacent to the guiding assembly is fixedly connected and communicated with three horizontally extending material discharge pipes 15. The material discharge pipes 15 penetrate through the suction shell 12 in a sealed manner. The ends of the material discharge pipes 15 away from the air pump 11, the ends of the material suction pipes 13 away from the air pump 11, and the end of the discharge cylinder 3 away from the feed cylinder 2 are located in the same plane, so as to ensure that when the switching unit 4 drives the discharge cylinder 3 to move to the material suction station and the material discharge station, the discharge cylinder 3 can be hermetically attached to and communicated with the material suction pipes 13 and the material discharge pipes 15 respectively.

[0055] A further improvement is that both the feed cylinder 2 and the discharge cylinder 3 are horizontally spaced apart.

[0056] After adopting the above design, the switching unit 4 drives the discharge cylinder 3 to move in a horizontal direction perpendicular to its own length direction. On the one hand, it is beneficial to ensure the stable movement of the discharge cylinder 3 to achieve the precise docking of the discharge cylinder 3 with the material suction pipes 13 and the material discharge pipes 15. On the other hand, it is beneficial to reduce the size of the equipment and make the structure more compact.

[0057] A further improvement is that the spacing between adjacent feed cylinders 2 and the spacing between adjacent discharge cylinders 3 are both greater than the length dimension and the width dimension of the cross-section of the heat insulation strip 8. The feed cylinders 2 and the discharge cylinders 3 are equally spaced in a horizontal direction perpendicular to their axis lines.

[0058] After adopting the above design, when using the switching unit 4 to adjust the discharge cylinder 3 from the material suction station to the material discharge station, or from the material discharge station to the material suction station, only need to control the movement amplitude of the discharge cylinder 3 to be the distribution interval of adjacent feed cylinders 2, reduce the movement amplitude of the discharge cylinder 3, and then the rapid switching of the working stations of the discharge cylinder 3 can be realized, improving the cutting efficiency.

[0059] Such as Figure 11 and Figure 12As shown in the figure, the switching unit 4 of the present utility model includes a horizontally arranged switching cylinder 41. The cylinder barrel of the switching cylinder 41 is fixed on the workbench 9, with its axis perpendicular to the length direction of the discharge cylinder 3. The piston rod is fixedly connected to the push plate 42. A guide rod 43 parallel to the axis of the switching cylinder 41 is fixed on the surface of the push plate 42 adjacent to the switching cylinder 41. A guide sleeve 44 is hermetically sleeved outside the guide rod 43, and the guide sleeve 44 is fixed above the workbench 9. A connecting frame 45 is fixed on the surface of the push plate 42 facing away from the switching cylinder 41. The discharge cylinder 3 is fixed inside the connecting frame 45. A roller 46 distributed along the axis of the guide rod 43 is fixed below the connecting frame 45, and the roller 46 rolls on the workbench 9.

[0060] After adopting the above structure, through the telescopic movement of the piston rod of the switching cylinder 41, the push plate 42 is driven to move horizontally along the direction perpendicular to the length direction of the discharge cylinder 3 under the sliding cooperation of the guide rod 43 and the guide sleeve 44, thereby driving the connecting frame 45 to translate. The roller 46 is used to support the connecting frame 45 and reduce the resistance received when the connecting frame 45 moves, so as to ensure the stable switching of the working position of the discharge cylinder 3, and thus ensure that the discharge cylinder 3 can be accurately docked with the suction pipe 13, the discharge pipe 15, and the feed cylinder 2.

[0061] A further improvement is that the cutting edge of the cutter 51 faces downward, and the driving unit 52 drives the cutter 51 to move in the vertical direction and the cutter 51 is detachably arranged at the output end of the driving unit 52.

[0062] Specifically, the driving unit 52 includes an inverted U-shaped bracket 521. An elevating oil cylinder 522 and a guide sleeve 524 are arranged on the bracket 521. The cylinder barrel of the elevating oil cylinder 522 is vertically fixed at the top of the bracket 521. The piston rod passes downward through the top of the bracket 521 and is fixedly connected to an installation groove 525. The notch of the installation groove 525 faces downward. The installation groove 525 extends in the horizontal direction perpendicular to the length direction of the discharge cylinder 3. A guide rod 523 extending in the vertical direction is fixed at the top of the installation groove 525, and the guide rod 523 slides vertically inside the guide sleeve 524. The top of the cutter 51 is adapted to the installation groove 525, and the cutter 51 is fixedly connected by bolts 526 and nuts 527 connected by threads.

[0063] After adopting the above structure, the detachable connection between the cutter 51 and the output end of the driving unit 52 is realized through the bolts 526 and nuts 527, so that it is convenient to replace the cutter 51 after the device has been used for a period of time for the long-term use of the device. After the elevating oil cylinder 522 is started, it acts on the installation groove 525, and through the sliding cooperation of the guide rod 523 and the guide sleeve 524, the stable movement of the installation groove 525 and the cutter 51 in the vertical direction is realized to ensure the cutting accuracy of the heat insulation strip 8.

[0064] A further improvement is that the feeding cylinder 2 is slidably arranged along its own length direction. The feeding cylinder 2 is connected with an elastic member 73 for reducing the gap between itself and the discharging cylinder 3 under the material suction station. A triggering assembly is arranged between the cutting knife 51 and the feeding cylinder 2. The triggering assembly is used for increasing the gap between the feeding cylinder 2 and the discharging cylinder 3 under the material suction station, so that the thickness of the cutting knife 51 is less than or equal to the width of the gap, and the moving path of the cutting knife 51 intersects with the gap. The triggering assembly includes a lifting triggering member 53 fixedly connected with the cutting knife 51 and a translation triggering member 21 fixedly connected with the feeding cylinder 2. The surface of the translation triggering member 21 adjacent to the cutting knife 51 includes a guiding inclined surface 211 and a vertical surface 212. The guiding inclined surface 211 is inclined, and the vertical surface 212 is arranged vertically between the guiding inclined surface 211 and the feeding cylinder 2. The moving track of the lifting triggering member 53 fits with the guiding inclined surface 211 and the vertical surface 212. The lifting triggering member 53 is a lifting triggering roller horizontally arranged on the cutting knife 51 and rotating around its own axis.

[0065] Specifically, as Figure 9 and Figure 10 shown, sliding units 7 are arranged at the bottom ends of the three feeding cylinders 2. The sliding unit 7 includes a horizontal bottom plate 71. Sleeves 72 are integrally formed at both ends of the bottom plate 71. The sleeves 72 extend along the length direction of the feeding cylinder 2. A sliding rod 74 is slidably inserted through the inner sides of the sleeves 72. End plates 741 are fixed at both ends of the sliding rod 74. A fixing frame 75 is arranged at the bottom end of the end plate 741. The fixing frame 75 is fixed on the ground. The elastic member 73 is a compression spring. The compression spring is sleeved outside the sliding rod 74. Both ends of the compression spring are respectively connected with the sleeve 72 and one of the end plates 741. A translation triggering member 21 is arranged above the feeding cylinder 2. The surface of the translation triggering member 21 adjacent to the cutting knife 51 includes a vertical surface 212 arranged vertically and a guiding inclined surface 211 fixed at the top of the vertical surface 212. The lifting triggering member 53 is a lifting triggering roller arranged on the side of the installation groove 525 adjacent to the translation triggering member 21. The axis of the lifting triggering roller extends along the length direction parallel to the installation groove 525 and rotates around its own axis on the installation groove 525.

[0066] After adopting the above design, when the cutting knife 51 is adjusted to the highest position by the lifting oil cylinder 522, under the pushing elastic force of the elastic member 73, the sleeve 72 is translated along the sliding rod 74 towards the cutting knife 51, so that the sleeve 72 abuts against one of the end plates 741. Then, the feeding cylinder 2 is driven by the bottom plate 71 to approach the material suction and discharging assembly 1. In this state, when the switching unit 4 adjusts the discharging cylinder 3 to the material suction station, both ends of the discharging cylinder 3 can be respectively communicated with the material suction pipe 13 and the feeding cylinder 2, reducing the gap between the two, so that the feeding cylinder 2 and the discharging cylinder 3 can be communicated with each other to form a channel. When the air pump 11 operates, a negative pressure is generated at the discharging cylinder 3, and the heat insulation strip 8 can be smoothly attracted towards the material suction and discharging assembly 1.

[0067] After the lifting oil cylinder 522 drives the cutting knife 51 to move downward, the lifting trigger member 53, that is, the lifting trigger roller, moves downward. The lifting trigger roller first acts on the guiding inclined surface 211 of the translation trigger member 21. Since the horizontal position of the lifting trigger member 53 remains unchanged, the lifting trigger member 53 continues to move downward, causing the translation trigger member 21 to move away from the cutting knife 51, thereby driving the feeding cylinder 2 away from the discharging cylinder 3, compressing the elastic member 73, and increasing the gap between the feeding cylinder 2 and the discharging cylinder 3. Until after the lifting trigger member 53 contacts the vertical plane 212, the gap between the feeding cylinder 2 and the discharging cylinder 3 increases by more than the thickness of the cutting knife 51 and the gap is directly below the cutting knife 51. In this way, the cutting knife 51 can smoothly pass through the gap between the feeding cylinder 2 and the discharging cylinder 3 to cut the heat insulation strip 8.

[0068] When the lifting oil cylinder 522 drives the cutting knife 51 to rise from the lowest position to the highest position again, the lifting trigger member 53 contacts the guiding inclined surface 211. Under the action of the compression spring, the sliding sleeve 72 is pushed to move along the sliding rod 74, and then the feeding cylinder 2 is driven by the bottom plate 71 to approach the discharging cylinder 3 until the end face of the feeding cylinder 2 can be hermetically fitted with one end of the discharging cylinder 3 at the material suction station. So that after the air pump 11 operates, the heat insulation strip 8 can smoothly enter the discharging cylinder 3 through the feeding cylinder 2.

[0069] The lifting trigger member 53 is a lifting trigger roller, which can reduce the resistance effect when it contacts the translation trigger member 21 through its own rotation, and ensure the smooth lifting of the cutting knife 51 and the stable translation of the feeding cylinder 2.

[0070] Obviously, the above embodiments are only examples clearly described and not limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation manners here. And the obvious changes or modifications derived therefrom are still within the protection scope of the creative utility model.

Claims

1. An automatic cutting device for heat insulation strips, characterized in that, Comprising: A material suction and discharge assembly (1), the material suction and discharge assembly (1) includes an air pump (11), and a material suction pipe (13) and a material discharge pipe (15) are respectively connected to the input end and the output end of the air pump (11); A guiding assembly, the guiding assembly includes a feeding cylinder (2), a discharging cylinder (3) and a switching unit (4), the inner cavities of the feeding cylinder (2) and the discharging cylinder (3) are both adapted to a heat insulation strip (8), the switching unit (4) drives the discharging cylinder (3) to move between a material suction station and a material discharge station. At the material suction station, one end of the discharging cylinder (3) is hermetically fitted with the end of the material suction pipe (13) away from the air pump (11), and the other end is in clearance fit with the feeding cylinder (2) and the feeding cylinder (2) faces the discharging cylinder (3). At the material discharge station, one end of the discharging cylinder (3) is hermetically fitted with the end of the material discharge pipe (15) away from the air pump (11), and the other end is separated from the closed curved surface where the outer circumference of the feeding cylinder (2) is located; A cutting assembly (5), the cutting assembly (5) includes a cutting knife (51) and a driving unit (52), the driving unit (52) drives the cutting knife (51) to move so as to cut the heat insulation strip (8) between the discharging cylinder (3) and the feeding cylinder (2) after the discharging cylinder (3) moves to the material suction station; A collection box (6), the collection box (6) is used for collecting the heat insulation strip (8) discharged from the discharging cylinder (3) under the discharging station.

2. The automatic cutting device for the heat insulation strip according to claim 1, characterized in that: Both the feeding cylinder (2) and the discharging cylinder (3) are horizontally arranged.

3. The automatic cutting device for the heat insulation strip according to claim 2, characterized in that: There are at least two of the feeding cylinder (2), the discharging cylinder (3), the material suction pipe (13) and the material discharge pipe (15), and they are arranged in one-to-one correspondence with each other.

4. The automatic cutting device for the heat insulation strip according to claim 3, characterized in that: Both the feeding cylinder (2) and the discharging cylinder (3) are spaced apart along the horizontal direction.

5. The automatic cutting device for the heat insulation strip according to claim 3, characterized in that: The intervals between adjacent feeding cylinders (2) and between adjacent discharging cylinders (3) are both greater than the length dimension and the width dimension of the cross section of the heat insulation strip (8), and the feeding cylinder (2) and the discharging cylinder (3) are equally spaced along the horizontal direction perpendicular to their axis lines.

6. The automatic cutting device for the heat insulation strip according to claim 4, characterized in that: The cutting edge of the cutting knife (51) faces downward, and the driving unit (52) drives the cutting knife (51) to move in the vertical direction.

7. The automatic cutting device for the heat insulation strip according to any one of claims 1 to 6, characterized in that: The feeding cylinder (2) is slidably arranged along its own length direction, the feeding cylinder (2) is connected with an elastic member (73) for reducing the clearance between itself and the discharging cylinder (3) under the material suction station, and a triggering assembly is arranged between the cutting knife (51) and the feeding cylinder (2). The triggering assembly is used for increasing the clearance between the feeding cylinder (2) and the discharging cylinder (3) under the material suction station so that the thickness of the cutting knife (51) is less than or equal to the width of the clearance, and the moving path of the cutting knife (51) intersects with the clearance.

8. The automatic cutting device for the heat insulation strip according to claim 7, characterized in that: The trigger assembly includes a lifting trigger member (53) fixedly connected to the cutting knife (51) and a translation trigger member (21) fixedly connected to the feeding cylinder (2). One side of the translation trigger member (21) adjacent to the cutting knife (51) includes a guiding inclined surface (211) and a vertical surface (212). The guiding inclined surface (211) is inclined, and the vertical surface (212) is arranged in the vertical direction between the guiding inclined surface (211) and the feeding cylinder (2). The moving trajectory of the lifting trigger member (53) fits with the guiding inclined surface (211) and the vertical surface (212).

9. The automatic cutting device for the heat insulation strip according to claim 8, wherein: The lifting trigger member (53) is a lifting trigger roller horizontally arranged on the cutting knife (51) and rotating around its own axis.

10. The automatic cutting device for the heat insulation strip according to any one of claims 1 to 6, characterized in that: The cutting knife (51) is detachably arranged at the output end of the driving unit (52).

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