A multi-channel cutting device for thermal insulation foam material with knife changing function

Abstract

The present invention discloses a multi-channel cutting device for thermal insulation foam materials with a knife-changing function, and belongs to the technical field of thermal insulation material cutting devices. It comprises a shell, the shell is provided with the storage rack, the shell is fixedly connected with the connecting plate, the connecting plate is slidably connected with the driving plate, the driving plate is slidably connected with the mounting shell, the mounting shell is slidably connected with a centrally symmetrically distributed elastic telescopic plate, the lower side of the elastic telescopic plate is slidably connected with a cutting knife, and the cutting knife is fixedly connected with a pressure detector. The present invention detects the resistance of the cutting knife on the adjacent elastic telescopic plates through the pressure detector, and then detects the degree of wear of the adjacent cutting knives. When the wear of the cutting knife increases, the cutting knife is replaced by replacing the position of the centrally symmetrical elastic telescopic plate on the same mounting shell, so that the whole process is faster and no longer requires shutdown processing.

Description

Technical Field

[0001] The invention relates to the technical field of thermal insulation material cutting devices, in particular to a thermal insulation foam material multi-pass cutting device with a knife changing function. Background Art

[0002] Thermal insulation foam material is a kind of thermal insulation material widely used in many fields such as construction, packaging, refrigeration, etc. It has the characteristics of light weight, high strength, good thermal insulation performance and certain sound insulation effect. This kind of material forms a large number of tiny closed pores during the foaming process. These pore structures can effectively block heat transfer, thereby achieving the purpose of thermal insulation and energy saving. The prepared thermal insulation foam material can be closely fitted to various structural surfaces during use to improve the thermal insulation effect and aesthetics. It is necessary to use a cutting device to cut the thermal insulation foam material. As the use time of the cutting knife gradually increases, the cutting knife will also be worn to varying degrees, causing its sharpness to decrease. When the degree of wear of the cutting knife is large, the cut thermal insulation foam material will be inaccurate in size, unclear in outline, and increased in surface roughness, which directly affects the appearance quality of the thermal insulation foam material. Although the current cutting device can detect the degree of wear of the cutting knife, it is mostly necessary to detect the degree of wear of the cutting knife after the cutting device is used or regularly shut down during the detection process. The wear of the cutting knife cannot be detected in real time, which may cause the cutting to be discovered only when the wear is serious, thereby affecting the product quality. Summary of the invention

[0003] In order to overcome the shortcomings mentioned in the above background technology, the present invention provides a multi-pass cutting device for thermal insulation foam material with a knife changing function.

[0004] The technical solution is: a multi-channel cutting device for thermal insulation foam material with a knife changing function, comprising a shell, a storage rack is arranged on one side of the shell, a symmetrically distributed connecting plate is fixedly connected to the inside of the shell, and a driving plate is slidably connected to the upper sides of the symmetrically distributed connecting plates, a first electric push rod is installed on one side of the shell, the telescopic end of the first electric push rod is fixedly connected to the driving plate, and a plurality of groups of mounting shells uniformly distributed axially are slidably connected to the lower side of the driving plate, each group of the mounting shells comprises two symmetrically distributed ones, an elastic telescopic plate symmetrically distributed centrally is slidably connected to the mounting shell, a cutting knife is slidably connected to a fixed part of the elastic telescopic plate, and a pressure detector is fixedly connected to the cutting knife, and a spring is fixedly connected between the fixed part of the elastic telescopic plate and the pressure detector on the adjacent cutting knife, and a driving mechanism is arranged inside the shell, and the driving mechanism is used to transport thermal insulation foam material.

[0005] Furthermore, the driving mechanism includes symmetrically distributed driving shafts, which are rotatably connected to both sides of the outer shell respectively, and a conveyor belt is commonly wound around the symmetrically distributed driving shafts, and the conveyor belt is provided with a plurality of through holes along the curved surface array thereof, and the symmetrically distributed driving shafts are rotatably connected to a sealing shell, and the sealing shell is slidably connected to the conveyor belt, and the sealing shell is shielded and cooperated with the conveyor belt, and the sealing shell is externally connected to an exhaust device.

[0006] Furthermore, one side of the symmetrically distributed connecting plates is rotatably connected with a symmetrically distributed first electric rotating shaft, and the mounting shell is slidably connected with a connecting shell on a side close to the first electric rotating shaft, and the two adjacent connecting shells are staggered, and the internal rotation of the connecting shell is connected with a spline shaft, and the spline shaft is threadedly connected to the adjacent first electric rotating shaft, and the connecting shell is slidably connected with a limiting block on a side away from the adjacent mounting shell, and the limiting block is in contact with and cooperates with the adjacent spline shaft, and a second electric push rod is fixedly connected to one side of the connecting shell, and a first elastic member is fixedly connected between the telescopic end of the second electric push rod and the adjacent limit block, and a switching mechanism for replacing adjacent elastic telescopic plates is provided on one side of the mounting shell.

[0007] Furthermore, the switching mechanism includes a fixed plate, the fixed plate is fixedly connected to a side of the mounting shell away from an adjacent cutting knife, the fixed plate is fixedly connected to a self-locking motor on a side away from an adjacent mounting shell, the fixed plate is fixedly connected to a limiting plate, the limiting plate is located inside the adjacent mounting shell, the limiting plate is rotatably connected to a telescopic connecting rod, the output shaft of the self-locking motor passes through the adjacent fixed plate, and the output shaft of the self-locking motor and the adjacent telescopic connecting rod are transmitted by a gear set, the elastic telescopic plate is slidably connected to a fixed block on a side close to the adjacent fixed plate, the fixed block is slidably connected to the adjacent telescopic connecting rod, and the fixed block slides between the adjacent fixed plate and the adjacent limiting plate, a slide groove is provided in the mounting shell, a limiting column is slidably connected in the slide groove of the mounting shell, the limiting column is limitedly matched with the fixed part of the adjacent elastic telescopic plate, and the mounting shell is provided with a limiting component, and the limiting component is used to limit the adjacent fixed block.

[0008] Furthermore, the elastic force of the elastic telescopic plate is greater than the friction force between the adjacent fixed block and the adjacent mounting shell and the adjacent limiting plate, the telescopic connecting rod is a bidirectional telescopic rod, and a tension spring is provided between the telescopic part of the telescopic connecting rod and its fixed part.

[0009] Furthermore, the limiting assembly includes a moving block, which is slidably connected to the adjacent mounting shell, a liquid storage cavity is provided on the lower side of the mounting shell, the moving block is squeezed and matched with the adjacent fixed block, the moving block slides in the adjacent liquid storage cavity, a second elastic member is provided between the moving block and the adjacent mounting shell, a connecting tube is fixedly connected to one side of the mounting shell close to the adjacent telescopic connecting rod, the connecting tube is communicated with the adjacent liquid storage cavity, and the connecting tube is communicated with a slide groove on the adjacent mounting shell.

[0010] Furthermore, the communication position between the connecting pipe and the slide groove on the adjacent mounting shell is located on a side of the adjacent limiting column close to the adjacent limiting plate.

[0011] Furthermore, it also includes symmetrically distributed mounting blocks, which are symmetrically distributed and respectively slidably connected to both sides of the shell, a third electric push rod is fixedly connected to one side of the shell, the telescopic end of the third electric push rod is fixedly connected to the adjacent mounting block, the symmetrically distributed mounting blocks are commonly fixedly connected to a fixing rod, the middle part of the fixing rod is rotatably connected to axially uniformly distributed rollers through a connecting piece, both ends of the fixing rod are fixedly connected to a gas transmission shell, the symmetrically distributed gas transmission shells are externally connected to an air pump, a symmetrically distributed fixed shell is fixedly connected to the inside of the shell, the fixed shell is located below the adjacent gas transmission shell, a movable plate is slidably connected to the inside of the fixed shell, a pressure detector is provided on the side of the movable plate away from the adjacent gas transmission shell, and a third elastic member is fixedly connected between the pressure detector on the movable plate and the adjacent fixed shell.

[0012] Furthermore, a symmetrically distributed fourth electric push rod is embedded in the shell, and a symmetrically distributed connecting block is slidably connected in the shell, the telescopic end of the fourth electric push rod is fixedly connected to the adjacent connecting block, and the connecting block is rotatably connected to a second electric shaft on a side away from the telescopic end of the adjacent fourth electric push rod, the second electric shaft is provided with a threaded portion, and a symmetrically distributed connecting frame is provided on a side of the connecting block away from the telescopic end of the adjacent fourth electric push rod, the connecting frame on the lower side is fixedly connected to the adjacent connecting block, and the connecting frame on the upper side is threadedly connected to the threaded portion on the adjacent connecting block, and the connecting frame is rotatably connected to symmetrically distributed electric wheels on a side away from the adjacent connecting block.

[0013] Furthermore, the upper side of the electric wheel on the lower connecting frame is flush with the upper side of the conveyor belt.

[0014] The present invention has the following advantages: the present invention detects the resistance exerted on the cutting knives on adjacent elastic telescopic plates by means of a pressure detector, and further detects the degree of wear of the adjacent cutting knives. When the wear of the cutting knives increases, the cutting knives can be replaced by replacing the positions of the centrally symmetrical elastic telescopic plates on the same mounting shell, thereby making the entire process faster and eliminating the need for downtime processing.

[0015] The adjacent fixed blocks are limited by the moving blocks to prevent the cutting knife on the elastic telescopic plate from shaking due to the movement of the insulation cotton when cutting the insulation cotton, thereby causing burrs on the insulation cotton at the cutting point and affecting the quality of the insulation cotton after cutting.

[0016] The pressure of the gas flowing out of the adjacent gas transmission shells is detected by the moving plate, so as to determine whether the insulation cotton is offset during the movement, and the position of the insulation cotton is adjusted by changing the position of the two connecting blocks to complete the deviation correction of the insulation cotton. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0018] Figure 2 is a three-dimensional structural cross-sectional view of the housing of the present invention;

[0019] Figure 3 It is a three-dimensional structural schematic diagram of the driving mechanism of the present invention;

[0020] Figure 4 is a three-dimensional structural cross-sectional view of the sealing shell of the present invention;

[0021] Figure 5 It is a schematic diagram of the three-dimensional structure of the connecting plate and the driving plate of the present invention;

[0022] Figure 6 It is a schematic diagram of the three-dimensional structure of the switching mechanism of the present invention;

[0023] Figure 7 It is a three-dimensional structural cross-sectional view of the connecting shell of the present invention;

[0024] Figure 8 It is a three-dimensional structural schematic diagram of the fixing plate and the self-locking motor of the present invention;

[0025] Fig. 9 It is a schematic diagram of the three-dimensional structure of the limit plate and the telescopic connecting rod of the present invention;

[0026] Fig.10 It is a schematic diagram of the three-dimensional structure of the fixing block and the limiting column of the present invention;

[0027] Fig.11 It is a schematic diagram of the three-dimensional structure of the limiting component of the present invention;

[0028] Fig.12 It is a three-dimensional structural schematic diagram of the mounting block and the fixing rod of the present invention;

[0029] Fig.13 It is a three-dimensional structural schematic diagram of the fixed shell and the movable plate of the present invention;

[0030] Fig.14 It is a schematic diagram of the three-dimensional structure of the fourth electric push rod and the connecting block of the present invention.

[0031] Meaning of the reference numerals in the figures:

[0032] 1: housing, 2: rack, 3: connecting plate, 4: driving plate, 5: first electric push rod, 6: mounting housing, 7: elastic telescopic plate, 701: cutting knife, 8: first electric rotating shaft, 20: driving shaft, 21: conveyor belt, 22: sealing housing, 30: connecting housing, 31: spline shaft, 32: limit block, 33: second electric push rod, 34: first elastic member;

[0033] 40: fixed plate, 41: self-locking motor, 42: limit plate, 43: telescopic connecting rod, 44: fixed block, 45: limit column;

[0034] 51: moving block, 52: liquid storage chamber, 54: second elastic member, 55: connecting tube;

[0035] 60: mounting block, 61: third electric push rod, 62: fixing rod, 63: gas transmission shell, 64: fixing shell, 65: moving plate, 66: third elastic member, 71: fourth electric push rod, 72: connecting block, 73: second electric rotating shaft, 74: connecting frame. DETAILED DESCRIPTION

[0036] Reference to an embodiment herein means that a particular feature, structure, or characteristic described in conjunction with the embodiment may be included in at least one embodiment of the present invention. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0037] Embodiment 1: Considering that the current cutting device can detect the degree of wear of the cutting knife, but in the process of detection, the degree of wear of the cutting knife needs to be detected after the cutting device is used or stopped regularly, and the defect of the wear of the cutting knife cannot be detected in real time. The present invention corrects it by the following measures:

[0038] A multi-channel cutting device for thermal insulation foam material with a knife changing function, such as Figure 1-Figure 3 , Figure 5 and Figure 6As shown, it includes a shell 1, on which a control terminal is arranged, and the control terminal is an existing device and is not shown in the figure. A storage rack 2 is arranged on the left side of the shell 1, and the storage rack 2 is detachably connected to a roller with a thermal insulation foam material wound thereon. Two connecting plates 3 symmetrically distributed front and back are fixedly connected inside the shell 1, and a driving plate 4 is slidably connected to the upper sides of the two connecting plates 3. A first electric push rod 5 is installed on the rear side of the shell 1, and the first electric push rod 5 is electrically connected to the control terminal. The telescopic end of the first electric push rod 5 is fixedly connected to the driving plate 4, and the telescopic end of the first electric push rod 5 drives the driving plate 4 to move. A plurality of groups of mounting shells 6 uniformly distributed in the axial direction are slidably connected to the lower side of the driving plate 4, and each group of mounting shells 6 includes two symmetrically distributed ones. The text and the figure both take three groups of mounting shells 6 as an example for description, and the mounting Two elastic expansion plates 7 symmetrically distributed in the center are slidably connected in the shell 6, and a cutting knife 701 is slidably connected to the fixed part of each elastic expansion plate 7, and the cutting knives 701 on the lower sides of adjacent elastic expansion plates 7 on two adjacent mounting shells 6 are symmetrically distributed, and the symmetrically distributed cutting knives 701 cut conical grooves in the thermal insulation foam material, and a pressure detector is fixedly connected to the cutting knife 701, and the pressure detector is electrically connected to the control terminal, and a spring is fixedly connected between the fixed part of the elastic expansion plate 7 and the pressure detector on the adjacent cutting knife 701, which is used to drive the moving cutting knife 701 to reset to the initial position, and the pressure detector detects the pressure exerted on the adjacent cutting knife 701 during the cutting process of the thermal insulation foam material, and a driving mechanism is arranged inside the outer shell 1, and the driving mechanism is used to transport the thermal insulation foam material.

[0039] like Figure 3 and Figure 4 As shown, the driving mechanism includes two driving shafts 20 symmetrically distributed on the left and right sides, and the two driving shafts 20 are respectively rotatably connected to the left and right sides of the shell 1. A conveyor belt 21 is commonly wound around the two driving shafts 20. The conveyor belt 21 is used to transport thermal insulation foaming materials. The front driving shaft 20 is an electric rotating shaft, and the front driving shaft 20 is electrically connected to the control terminal. The two driving shafts 20 cooperate with each other to jointly drive the conveyor belt 21 to move. The conveyor belt 21 is provided with a plurality of through holes along the curved surface array where it is located. The two driving shafts 20 are commonly rotatably connected to a sealing shell 22, which is slidably connected to the conveyor belt 21, and the sealing shell 22 is shielded and cooperated with the conveyor belt 21. The sealing shell 22 is used to shield the through holes on the lower side of the conveyor belt 21. The sealing shell 22 is externally connected to an exhaust device, and the exhaust device extracts the gas inside the conveyor belt 21 and the sealing shell 22, so that the conveyor belt 21 and the sealing shell 22 are in a negative pressure state, thereby making the thermal insulation cotton board adhere to the conveyor belt 21.

[0040] like Figure 5-Figure 7As shown, the left sides of the two connecting plates 3 are rotatably connected with two first electric rotating shafts 8 symmetrically distributed up and down, and the left side of the mounting shell 6 is slidably connected with a connecting shell 30. The two adjacent connecting shells 30 are staggered. The internal rotation of the connecting shell 30 is connected with a spline shaft 31, and the spline shaft 31 is threadedly connected with the adjacent first electric rotating shaft 8. The first electric rotating shaft 8 drives the adjacent connecting shells 30 to move synchronously through the transmission of the adjacent spline shaft 31. The left side of the connecting shell 30 is slidably connected with a limited block 32, and the limited block 32 is in contact with the adjacent spline shaft 31 for connecting the spline shaft 31 with the adjacent connecting shell 30. The connection makes the spline shaft 31 limited by the adjacent connecting shell 30, the adjacent mounting shell 6 and the driving plate 4, and cannot rotate with the adjacent first electric rotating shaft 8. The front side of the connecting shell 30 is fixedly connected to the second electric push rod 33, and the second electric push rod 33 is electrically connected to the control terminal. A first elastic member 34 is fixedly connected between the telescopic end of the second electric push rod 33 and the adjacent limit block 32. The telescopic end of the second electric push rod 33 drives the adjacent limit block 32 to move through the transmission of the adjacent first elastic member 34. The first elastic member 34 is a tension spring. One side of the mounting shell 6 is provided with a switching mechanism for replacing the adjacent elastic telescopic plate 7.

[0041] like Figure 6 and Figure 8-Figure 10As shown, the switching mechanism includes a fixed plate 40, which is fixed to the mounting shell 6. The two fixed plates 40 on the same group of mounting shells 6 are respectively located at the opposite sides of the two mounting shells 6. The fixed plate 40 is fixed with a self-locking motor 41, which is electrically connected to the control terminal. The fixed plate 40 is fixed with a limit plate 42, which is located inside the adjacent mounting shell 6, and there is a gap between the limit plate 42 and the adjacent mounting shell 6. The limit plate 42 is rotatably connected with a telescopic connecting rod 43. The output shaft of the self-locking motor 41 passes through the adjacent fixed plate 40, and the output shaft of the self-locking motor 41 and the fixed part of the adjacent telescopic connecting rod 43 are driven by a gear set. The output shaft of the self-locking motor 41 drives the fixed part of the adjacent telescopic connecting rod 43 to rotate through the transmission of the adjacent gear set. The telescopic connecting rod 43 is a bidirectional telescopic rod, and a tension spring is arranged between the telescopic part of the telescopic connecting rod 43 and its fixed part. In the initial position, the telescopic part of the telescopic connecting rod 43 and its fixed part are connected. The tension spring of the fixed part is in a stretched state, and the fixed part and the telescopic part of the elastic telescopic plate 7 are slidably connected with a fixed block 44, and the fixed block 44 is slidably connected with the adjacent telescopic connecting rod 43, and the fixed block 44 slides between the adjacent fixed plate 40 and the adjacent limiting plate 42, and the telescopic connecting rod 43 drives the two adjacent fixed blocks 44 to move synchronously along the gap between the adjacent limiting plate 42 and the adjacent mounting shell 6 during the rotation process. A sliding groove is provided on the left side of the mounting shell 6, and a limiting column 45 is slidably connected in the sliding groove of the mounting shell 6. The limiting column 45 is limitedly matched with the fixed part of the adjacent elastic telescopic plate 7, and the mounting shell 6 is provided with a limiting component, which is used to limit the adjacent fixed blocks 44. The elastic force of the elastic telescopic plate 7 is greater than the friction force between the adjacent fixed blocks 44 and the adjacent mounting shell 6 and the adjacent limiting plate 42, so as to avoid the friction force between the fixed blocks 44 and the adjacent mounting shell 6 and the adjacent limiting plate 42 affecting the resetting of the elastic telescopic plate 7.

[0042] like Figure 8 , Fig.10 and Fig.11As shown, the limiting assembly includes a moving block 51, which is slidably connected to the adjacent mounting shell 6. A liquid storage chamber 52 is provided on the lower side of the mounting shell 6. The liquid storage chamber 52 is filled with hydraulic oil. The moving block 51 slides in the adjacent liquid storage chamber 52. The moving block 51 is squeezed and matched with the adjacent and upper fixed block 44. The moving block 51 is limitedly matched with the adjacent and lower fixed block 44. The fixed block 44 squeezes the adjacent moving block 51 into the adjacent liquid storage chamber 52 and squeezes out the hydraulic oil in the adjacent liquid storage chamber 52. A second elastic member is provided between the moving block 51 and the adjacent mounting shell 6. 54, the second elastic member 54 is a spring, the second elastic member 54 is used to maintain the initial position of the adjacent moving block 51, and drive the moving block 51 to return to the initial position after moving. A connecting pipe 55 is fixedly connected to the side of the mounting shell 6 close to the adjacent telescopic connecting rod 43, the connecting pipe 55 is communicated with the adjacent liquid storage chamber 52, the connecting pipe 55 is communicated with the slide groove on the adjacent mounting shell 6, the connecting position of the connecting pipe 55 and the slide groove on the adjacent mounting shell 6 is located on the side of the adjacent limiting column 45 close to the adjacent limiting plate 42, and the hydraulic oil in the adjacent liquid storage chamber 52 is transported to the slide groove of the adjacent mounting shell 6 by the connecting pipe 55.

[0043] In the present invention, during the lateral movement of the three groups of cutting knives 701, the lower ends of the two cutting knives 701 in the same group are always in contact with each other.

[0044] When using the device to cut the thermal insulation foam material (hereinafter referred to as thermal insulation cotton), the staff installs the roller with the thermal insulation cotton wound around it on the storage rack 2, and pulls one side of the thermal insulation cotton onto the conveyor belt 21. Then the control terminal starts the exhaust device, and the exhaust device extracts the gas in the sealing shell 22, and then the gas in the conveyor belt 21 and the sealing shell 22 is extracted, so that the thermal insulation cotton is attached to the conveyor belt 21 under the influence of the airflow. Then the control terminal starts the two first electric rotating shafts 8, and the two first electric rotating shafts 8 adjust the positions of the three groups of cutting knives 701 through the transmission of other parts connected thereto, and then adjust the cutting position of the thermal insulation cotton. During the rotation process, the two first electric rotating shafts 8 respectively drive the three spline shafts 31 thereon to move backward through the transmission drive of the thread. The following is a description of the movement process of one of the spline shafts 31 as an example:

[0045] When the spline shaft 31 moves backward, the adjacent mounting shell 6 is driven to move backward synchronously through the transmission of other parts connected thereto, and the mounting shell 6 drives other parts connected thereto to move synchronously, and the horizontal position of the adjacent cutting knife 701 is adjusted. After the cutting knife 701 is adjusted to a suitable position, the control terminal starts the adjacent second electric push rod 33, and the telescopic end of the second electric push rod 33 drives the adjacent limit block 32 to move synchronously through the transmission of the adjacent first elastic member 34, so that the limit block 32 loses contact with the adjacent spline shaft 31. At this time, the spline shaft 31 is no longer limited by the limit block 32 and the parts connected thereto, so that the spline shaft 31 can rotate synchronously with the adjacent first electric rotating shaft 8. Until the control terminal adjusts the positions of the remaining five cutting knives 701 according to the above operation, the control terminal shuts down the two first electric rotating shafts 8.

[0046] After the above-mentioned control terminal shuts down the two first electric rotating shafts 8, the control terminal starts the first electric push rod 5, and the telescopic end of the first electric push rod 5 drives the six mounting shells 6 and other parts connected thereto to move downward synchronously through the transmission of the driving plate 4, and adjusts the vertical position of the three groups of cutting knives 701, that is, adjusts the depth of the insulation cotton cutting groove. After the vertical position adjustment of the three groups of cutting knives 701 is completed, the control terminal shuts down the first electric push rod 5 and fixes the driving plate 4 and other parts connected thereto at this position.

[0047] After the position adjustment of the three sets of cutting knives 701 is completed, the control terminal starts the right driving shaft 20, and the right driving shaft 20 drives the conveyor belt 21 to rotate, and then the conveyor belt 21 drives the right end of the thermal insulation cotton adsorbed thereon to move to the right. When the thermal insulation cotton moves to the position in contact with the three sets of cutting knives 701, the conveyor belt 21 continues to drive the thermal insulation cotton to move, and the three sets of cutting knives 701 cut conical grooves on the thermal insulation cotton.

[0048] In the above-mentioned process of cutting the thermal insulation cotton, as the use time increases, the wear of the cutting knife 701 gradually increases. At the same time, after the wear of the cutting knife 701 increases, the resistance encountered when cutting the thermal insulation cotton increases synchronously. The following is a description of the movement process of one of the cutting knives 701 as an example:

[0049] When the cutting knife 701, which has been worn out, is cutting the thermal insulation cotton, it is affected by the thermal insulation cotton and drives the pressure detector on it to move synchronously to the right, so that the spring on the fixed part of the adjacent elastic telescopic plate 7 is squeezed and gradually accumulates force, and at the same time, the value detected by the pressure detector on the adjacent elastic telescopic plate 7 is synchronously increased. Until the value detected by the pressure detector on the elastic telescopic plate 7 increases to a certain value, the control terminal starts the adjacent self-locking motor 41, and the output shaft of the self-locking motor 41 synchronizes the transmission of the adjacent gear group to drive the fixed part of the adjacent telescopic connecting rod 43 to rotate. During the rotation of the telescopic connecting rod 43, its telescopic part drives the two adjacent fixed blocks 44 to move, so that the lower fixed block 44 moves upward along the gap between the adjacent elastic telescopic plate 7 and the adjacent limit plate 42 and the adjacent mounting shell 6 (the elastic telescopic plate 7 on the left), and the upper fixed block 44 moves downward along the adjacent elastic telescopic plate 7 and the adjacent limit plate 42 and the adjacent mounting shell 6 (the elastic telescopic plate 7 on the right).

[0050] Until the two fixed blocks 44 move to the limit positions along the adjacent elastic telescopic plates 7 respectively, the telescopic connecting rod 43 continues to move, and the two fixed blocks 44 respectively drive the adjacent elastic telescopic plates 7 to move synchronously. At this time, the fixed portion of the left elastic telescopic plate 7 is limited by the adjacent limiting column 45, so that the left fixed block 44 drives the telescopic portion of the adjacent elastic telescopic plate 7 to move upward, and the right fixed block 44 drives the fixed portion of the adjacent elastic telescopic plate 7 to move downward, until the right elastic telescopic plate 7 moves downward to the position in contact with the adjacent moving block 51, the right elastic telescopic plate 7 continues to move downward to squeeze the adjacent moving block 51, so that the moving block 51 moves into the adjacent liquid storage cavity 52, so that the adjacent second elastic member 54 is compressed and stored, and the liquid in the adjacent liquid storage cavity 52 is compressed. The hydraulic oil is transported to the slide groove on the adjacent mounting shell 6 through the adjacent connecting pipe 55, so that the adjacent limiting column 45 is moved to the left under the extrusion force until the right elastic telescopic plate 7 moves downward to the lower side of the mounting shell 6, and the right cutting knife 701 moves synchronously to the position in contact with the thermal insulation cotton, the moving block 51 moves completely into the adjacent liquid storage chamber 52, and the telescopic part of the left elastic telescopic plate 7 moves upward to the limit position. At the same time, the limiting column 45 loses contact with the fixed part of the adjacent left elastic telescopic plate 7, and in the process of the right elastic telescopic plate 7 moving downward, the left cutting knife 701 is always in contact with the thermal insulation cotton, so that the left cutting knife 701 always cuts the thermal insulation cotton in the process of the right elastic telescopic plate 7 moving downward, avoiding the thermal insulation cotton from having uncut parts during the knife changing process.

[0051] When the above-mentioned limiting column 45 loses contact with the fixing part of the adjacent left elastic telescopic plate 7, the fixing part of the left elastic telescopic plate 7 gradually moves upward, thereby causing the telescopic part of the elastic telescopic plate 7 to move back into its fixing part, until the fixing part of the left elastic telescopic plate 7 moves upward to the position between its telescopic part and the fixing part and returns to the initial state. When the output shaft of the self-locking motor 41 continues to drive the telescopic connecting rod 43 to rotate, the telescopic connecting rod 43 drives the two fixing blocks 44 to move laterally along the adjacent limiting plate 42 and the adjacent mounting shell 6, that is, the left The fixed block 44 on the side moves to the right, and the fixed block 44 on the right moves to the left, until the fixed block 44 on the left moves to the right to a position in contact with the right side surface inside the adjacent mounting shell 6, and the fixed block 44 on the right simultaneously moves to the left to a position in contact with the left side surface inside the mounting shell 6, and then the control terminal shuts down the self-locking motor 41, completing the replacement of the positions of the two elastic retractable plates 7 on the same mounting shell 6, and then completing the replacement of the cutting knife 701 with increased wear, and the staff replaces the cutting knife 701 with increased wear for next use.

[0052] When the fixed block 44 on the right side moves to the left to a position in contact with the left side surface inside the mounting shell 6, the fixed block 44 on the lower side loses contact with the adjacent moving block 51, and then the adjacent second elastic member 54 drives the adjacent moving block 51 to move upward, and transports the hydraulic oil in the slide groove on the adjacent mounting shell 6 to the adjacent liquid storage chamber 52 through the adjacent connecting pipe 55, so that the adjacent moving block 51 moves upward, and then the moving block 51 limits the fixed block 44 on the lower side at this time.

[0053] When the cutting knife 701 originally located on the lower side moves upward to a position where it loses contact with the thermal insulation cotton, the cutting knife 701 moves to the left under the action of the adjacent spring, thereby causing the value detected by the pressure detector on the adjacent cutting knife 701 to gradually decrease, until the cutting knife 701 moves to the left to the initial position, and the value detected by the pressure detector on the cutting knife 701 returns to the initial value.

[0054] During the upward movement of the moving block 51, the adjacent limiting column 45 also gradually moves to the right along the slide groove on the adjacent mounting shell 6, and the limiting column 45 limits the fixed block 44 located on the lower side at this time, so as to prevent the cutting knife 701 on the lower side of the elastic telescopic plate 7 from shaking due to the movement of the thermal insulation cotton when cutting the thermal insulation cotton, thereby causing burrs to form at the cutting point of the thermal insulation cotton, affecting the quality of the thermal insulation cotton after cutting. The movement process of the remaining self-locking motors 41 can refer to the above.

[0055] After the insulation cotton is cut according to the above operation, the control terminal shuts down the exhaust device and reversely starts the first electric push rod 5, and the telescopic end of the first electric push rod 5 drives the drive plate 4 and other parts connected thereto to reset to the initial position synchronously, until the drive plate 4 is reset to the initial position, the control terminal reversely starts the two first electric shafts 8, and the two first electric shafts 8 jointly drive the three groups of mounting shells 6 connected thereto to reset to the initial position, until the device is reset to the initial position, the staff will inspect and repair the device, and the staff will replace the cutting knife 701 with increased wear for next use.

[0056] Embodiment 2: Based on Embodiment 1, considering that the thermal insulation foam material may be skewed during the transportation process, which may cause the thermal insulation foam material to be skewed during the cutting process, resulting in the defect that the cutting size of the thermal insulation foam material is affected, the present invention corrects it by the following measures:

[0057] like Figure 2 , Fig.12 and Fig.13 As shown, it also includes two mounting blocks 60 symmetrically distributed front and back, the two mounting blocks 60 are slidably connected to the two sides of the shell 1 respectively, a third electric push rod 61 is fixedly connected to one side of the shell 1, the third electric push rod 61 is electrically connected to the control terminal, the telescopic end of the third electric push rod 61 is fixedly connected to the adjacent mounting block 60, the two mounting blocks 60 are commonly fixedly connected to a fixing rod 62, the telescopic end of the third electric push rod 61 drives the three to move synchronously through the cooperation of the two mounting blocks 60 and the fixing rod 62, the middle part of the fixing rod 62 is rotatably connected to rollers evenly distributed axially through a connecting piece, the rollers are in contact with the thermal insulation foam material, and the fixing rod 62 drives the rollers thereon to move synchronously, the front and rear ends of the fixing rod 62 are fixedly connected to a gas delivery shell 63, the two gas delivery shells 63 are both externally connected to an air pump, the air pump is electrically connected to the control terminal, the air pump delivers gas to the two gas delivery shells 63, and the lower The ports are all in contact with the thermal insulation foam material, and the lower ports of the two gas delivery shells 63 are blocked by the thermal insulation foam material to increase the pressure of the gas flowing out of the two gas delivery shells 63. Two fixed shells 64 symmetrically distributed front and back are fixedly connected inside the outer shell 1. The fixed shells 64 are located below the adjacent gas delivery shells 63. A moving plate 65 is slidably connected inside the fixed shells 64, so that the moving plate 65 is affected by the gas flowing out of the adjacent gas delivery shells 63 and moves downward. A pressure detector is provided on the lower side of the moving plate 65, and the pressure detector is electrically connected to the control terminal. A third elastic member 66 is fixedly connected between the pressure detector on the moving plate 65 and the adjacent fixed shell 64. The third elastic member 66 is a spring. The third elastic member 66 is used to maintain the initial position of the adjacent moving plate 65 and drive the moving plate 65 to reset to the initial position after moving, and the pressure detector is used to detect the extrusion force exerted on the adjacent moving plate 65.

[0058] like Fig.12 and Fig.14 As shown, two fourth electric push rods 71 ​​symmetrically distributed front and back are embedded in the housing 1, and the fourth electric push rods 71 ​​are electrically connected to the control terminal. Two connecting blocks 72 symmetrically distributed front and back are slidably connected in the housing 1, and the telescopic ends of the fourth electric push rods 71 ​​are fixedly connected to the adjacent connecting blocks 72. The opposite sides of the two connecting blocks 72 are rotatably connected to the second electric rotating shaft 73, and the second electric rotating shaft 73 is electrically connected to the control terminal. The second electric rotating shaft 73 is provided with a threaded portion, and two connecting frames 74 symmetrically distributed up and down are provided on one side of the connecting block 72 away from the telescopic end of the adjacent fourth electric push rod 71, and the lower connecting frame 74 is fixedly connected to the adjacent connecting block 72, and the upper connecting frame 74 is connected to the adjacent connecting block 72. The threaded portion on the connecting block 72 is threadedly connected, and the adjacent connecting frame 74 located on the upper side is driven to move by the second electric rotating shaft 73. The connecting frame 74 is rotatably connected to the side away from the adjacent connecting block 72 and has two electric wheels symmetrically distributed on the left and right. The upper sides of the two electric wheels on the lower connecting frame 74 are flush with the upper side of the conveyor belt 21. The two electric wheels on the same connecting frame 74 are a group, and the electric wheels are electrically connected to the control terminal, and the electric wheels are in contact with the thermal insulation foam material. The four groups of electric wheels cooperate with the conveyor belt 21 to jointly drive the thermal insulation foam material to move toward, and the telescopic end of the fourth electric push rod 71 drives the two adjacent groups of electric wheels to move through the transmission of the adjacent connecting block 72 and the adjacent connecting frame 74.

[0059] After the above-mentioned staff pulls the thermal insulation cotton onto the conveyor belt 21, the control terminal starts the third electric push rod 61, and the telescopic end of the third electric push rod 61 drives the adjacent mounting block 60 to move downward, and the mounting block 60 drives another mounting block 60 to move downward synchronously through the transmission of the fixed rod 62, and the fixed rod 62 drives the rollers thereon to move downward synchronously until the rollers on the lower side of the fixed rod 62 move downward to a position in contact with the upper side of the thermal insulation cotton, and the control terminal stops the third electric push rod 61 and fixes the fixed rod 62 and other parts connected thereto at this position.

[0060] During the downward movement of the fixing rod 62, the fixing rod 62 drives the front and rear gas delivery shells 63 to move downward synchronously until the control terminal shuts down the third electric push rod 61, and the lower sides of the two gas delivery shells 63 move downward synchronously to a position in contact with the upper side of the thermal insulation cotton.

[0061] Subsequently, when the control terminal starts the front driving shaft 20, the control terminal starts two air pumps, and the two air pumps deliver gas to the two gas delivery shells 63 with the same power. The gas delivered to the two gas delivery shells 63 is discharged downward along the gas delivery shells 63. In the process of discharging gas from the two gas delivery shells 63, the discharged gas is partially blocked by the thermal insulation cotton, thereby increasing the pressure of the gas discharged outward from the two gas delivery shells 63. At the same time, the gas discharged from the two gas delivery shells 63 is respectively delivered along the front and rear sides of the thermal insulation cotton to the adjacent fixed shells 64, thereby causing the adjacent movable plates 65 to move downward, and the adjacent third elastic members 66 to be compressed and stored, and at the same time, the values ​​detected by the pressure detectors on the two movable plates 65 gradually increase.

[0062] When the above-mentioned control terminal starts the third electric push rod 61, the control terminal starts the two second electric shafts 73, and the two second electric shafts 73 respectively drive the adjacent and upper connecting frames 74 to move downward synchronously, so that the two adjacent connecting frames 74 are close to each other, and the two upper connecting frames 74 respectively drive the two electric wheels thereon to move synchronously during the movement, until the four groups of electric wheels are in contact with the thermal insulation cotton, and the control terminal shuts down the two second electric shafts 73. When the above-mentioned control terminal starts the front drive shaft 20, the control terminal starts the four groups of electric wheels, and the four groups of electric wheels cooperate with the conveyor belt 21 to jointly drive the thermal insulation cotton to move to the right, and then the control terminal cuts the thermal insulation cotton according to the above-mentioned operation.

[0063] In the process of the above-mentioned heat preservation cotton moving to the right, if the heat preservation cotton deflects forward, the shielding area of ​​the heat preservation cotton on the front gas delivery shell 63 increases, thereby reducing the volume of the gas flowing out of the front gas delivery shell 63, and at the same time reducing the pressure on the front moving plate 65, even if the front moving plate 65 gradually moves upward under the action of the adjacent third elastic member 66, and the value detected by the pressure detector on the front moving plate 65 is synchronously reduced, in this process, the value detected by the pressure detector on the rear moving plate 65 is synchronously increased (the specific process can be referred to above), and then the control terminal starts the fourth The electric push rod 71, driven by the telescopic end of the fourth electric push rod 71 on the rear side, drives the adjacent connecting block 72 and other parts connected thereto to move backward synchronously. At the same time, the control terminal reversely starts the fourth electric push rod 71 on the front side, and the telescopic end of the fourth electric push rod 71 on the front side drives the adjacent connecting block 72 and other parts connected thereto to move backward synchronously. The connecting blocks 72 on the front and rear sides and other parts connected thereto cooperate with each other to adjust the position of the thermal insulation cotton to avoid continuous offset of the offset thermal insulation cotton during the movement, thereby affecting the cutting process of the thermal insulation cotton.

[0064] In the above-mentioned process of adjusting the thermal insulation cotton, when the moving direction of the thermal insulation cotton is restored, the shielding area of ​​the thermal insulation cotton on the front and rear gas supply shells 63 is restored to the same state again. At this time, the pressure of the gas flowing out of the two gas supply shells 63 is restored to the same, and then the values ​​detected by the pressure detectors on the two movable plates 65 are restored to the same. Then the control terminal shuts down the two fourth electric push rods 71 ​​to complete the correction of the thermal insulation cotton. After the cutting work of the thermal insulation cotton is completed according to the above-mentioned operation, the control terminal resets the above-mentioned parts to the initial position, and the staff inspects and repairs the device for next use.

[0065] The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A multi-channel cutting device for thermal insulation foam material with a knife changing function, comprising a housing (1), a shelf (2) being provided on one side of the housing (1), characterized in that: It also includes symmetrically distributed connecting plates (3), the symmetrically distributed connecting plates (3) are all fixedly connected to the inside of the shell (1), the upper sides of the symmetrically distributed connecting plates (3) are slidably connected to a driving plate (4), a first electric push rod (5) is installed on one side of the shell (1), the telescopic end of the first electric push rod (5) is fixedly connected to the driving plate (4), the lower side of the driving plate (4) is slidably connected to a plurality of groups of mounting shells (6) evenly distributed in the axial direction, each group of the mounting shells (6) includes two symmetrically distributed ones, the mounting shells (6) are slidably connected to elastic telescopic plates (7) distributed centrally and symmetrically, the fixed part of the elastic telescopic plate (7) is slidably connected to a cutting knife (701), and a pressure detector is fixedly connected to the cutting knife (701), and a spring is fixedly connected between the fixed part of the elastic telescopic plate (7) and the pressure detector on the adjacent cutting knife (701), and a driving mechanism is arranged inside the shell (1), and the driving mechanism is used to transport the thermal insulation foam material; One side of the symmetrically distributed connecting plates (3) is rotatably connected with a symmetrically distributed first electric rotating shaft (8); a side of the mounting shell (6) close to the first electric rotating shaft (8) is slidably connected with a connecting shell (30); two adjacent connecting shells (30) are staggeredly distributed; a spline shaft (31) is rotatably connected inside the connecting shell (30); the spline shaft (31) is threadedly connected to the adjacent first electric rotating shaft (8); a side of the connecting shell (30) away from the adjacent mounting shell (6) is slidably connected with a limiting block (32); the limiting block (32) is in contact with and cooperates with the adjacent spline shaft (31); a second electric push rod (33) is fixedly connected to one side of the connecting shell (30); a first elastic member (34) is fixedly connected between the telescopic end of the second electric push rod (33) and the adjacent limiting block (32); and a switching mechanism for replacing adjacent elastic telescopic plates (7) is provided on one side of the mounting shell (6); The switching mechanism comprises a fixing plate (40), the fixing plate (40) being fixedly connected to a side of the mounting shell (6) away from the adjacent cutting knife (701), a self-locking motor (41) being fixedly connected to the side of the fixing plate (40) away from the adjacent mounting shell (6), the fixing plate (40) being fixedly connected to a limiting plate (42), the limiting plate (42) being located inside the adjacent mounting shell (6), the limiting plate (42) being rotatably connected to a telescopic connecting rod (43), an output shaft of the self-locking motor (41) passing through the adjacent fixing plate (40), and a gear set being provided between the output shaft of the self-locking motor (41) and the adjacent telescopic connecting rod (43). The elastic telescopic plate (7) is slidably connected to a fixed block (44) on one side close to the adjacent fixed plate (40); the fixed block (44) is slidably connected to the adjacent telescopic connecting rod (43); and the fixed block (44) slides between the adjacent fixed plate (40) and the adjacent limiting plate (42); a sliding groove is provided in the mounting shell (6); a limiting column (45) is slidably connected in the sliding groove of the mounting shell (6); the limiting column (45) is limitedly matched with the fixing part of the adjacent elastic telescopic plate (7); and the mounting shell (6) is provided with a limiting component, and the limiting component is used to limit the adjacent fixed block (44).

2. The thermal insulation foam material multi-pass cutting device with a knife changing function according to claim 1, characterized in that: The driving mechanism comprises symmetrically distributed driving shafts (20), the symmetrically distributed driving shafts (20) are rotatably connected to two sides of the housing (1), the symmetrically distributed driving shafts (20) are commonly wound with a conveyor belt (21), the conveyor belt (21) is provided with a plurality of through holes along the curved surface array thereof, the symmetrically distributed driving shafts (20) are commonly rotatably connected with a sealing shell (22), the sealing shell (22) is slidably connected to the conveyor belt (21), the sealing shell (22) and the conveyor belt (21) are shielded and matched, and the sealing shell (22) is externally connected to an exhaust device.

3. The thermal insulation foam material multi-pass cutting device with a knife changing function according to claim 2, characterized in that: The elastic force of the elastic telescopic plate (7) is greater than the friction force between the adjacent fixed block (44), the adjacent mounting shell (6) and the adjacent limit plate (42); the telescopic connecting rod (43) is a bidirectional telescopic rod, and a tension spring is provided between the telescopic portion of the telescopic connecting rod (43) and its fixed portion.

4. The thermal insulation foam material multi-pass cutting device with a tool changing function according to claim 3, characterized in that: The limiting assembly comprises a moving block (51), the moving block (51) being slidably connected to the adjacent mounting shell (6), a liquid storage cavity (52) being arranged at the lower side of the mounting shell (6), the moving block (51) being pressed and matched with the adjacent fixed block (44), the moving block (51) sliding in the adjacent liquid storage cavity (52), a second elastic member (54) being arranged between the moving block (51) and the adjacent mounting shell (6), a connecting tube (55) being fixedly connected to a side of the mounting shell (6) close to the adjacent telescopic connecting rod (43), the connecting tube (55) being communicated with the adjacent liquid storage cavity (52), and the connecting tube (55) being communicated with a slide groove on the adjacent mounting shell (6).

5. The thermal insulation foam material multi-pass cutting device with a tool changing function according to claim 4, characterized in that: The communication position between the connecting pipe (55) and the slide groove on the adjacent mounting shell (6) is located on a side of the adjacent limiting column (45) close to the adjacent limiting plate (42).

6. The thermal insulation foam material multi-pass cutting device with a tool changing function according to claim 2, characterized in that: The device also comprises symmetrically distributed mounting blocks (60), the symmetrically distributed mounting blocks (60) being slidably connected to the two sides of the housing (1), a third electric push rod (61) being fixedly connected to one side of the housing (1), the telescopic end of the third electric push rod (61) being fixedly connected to the adjacent mounting block (60), the symmetrically distributed mounting blocks (60) being commonly fixedly connected to a fixing rod (62), the middle portion of the fixing rod (62) being rotatably connected to rollers evenly distributed in the axial direction via a connecting piece, and both ends of the fixing rod (62) being fixedly connected to The gas delivery shells (63) are symmetrically distributed and are all externally connected to an air pump. The outer shell (1) is internally fixedly connected with symmetrically distributed fixed shells (64). The fixed shells (64) are located below the adjacent gas delivery shells (63). The fixed shells (64) are slidably connected with a movable plate (65) inside. A pressure detector is provided on a side of the movable plate (65) away from the adjacent gas delivery shell (63). A third elastic member (66) is fixedly connected between the pressure detector on the movable plate (65) and the adjacent fixed shell (64).

7. The thermal insulation foam material multi-pass cutting device with a tool changing function according to claim 6, characterized in that: The housing (1) is inlaid with symmetrically distributed fourth electric push rods (71), and the housing (1) is slidably connected with symmetrically distributed connecting blocks (72), the telescopic end of the fourth electric push rod (71) is fixedly connected to the adjacent connecting block (72), the side of the connecting block (72) away from the telescopic end of the adjacent fourth electric push rod (71) is rotatably connected to a second electric rotating shaft (73), the second electric rotating shaft (73) is provided with a threaded portion, and the side of the connecting block (72) away from the telescopic end of the adjacent fourth electric push rod (71) is provided with a symmetrically distributed connecting frame (74), the lower side of the connecting frame (74) is fixedly connected to the adjacent connecting block (72), and the upper side of the connecting frame (74) is threadedly connected to the threaded portion on the adjacent connecting block (72), and the side of the connecting frame (74) away from the adjacent connecting block (72) is rotatably connected to symmetrically distributed electric wheels.

8. The thermal insulation foam material multi-pass cutting device with a tool changing function according to claim 7, characterized in that: The upper side of the electric wheel on the lower connecting frame (74) is flush with the upper side of the conveyor belt (21).

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