Automatic feeding and discharging device for metal pipe annealing

Abstract

The invention discloses an automatic feeding and discharging device for metal pipe annealing, and relates to the technical field of metal pipe machining, the automatic feeding and discharging device comprises a rack and a placing inclined frame, an inclined placing plate is mounted at the top end of one side, close to a cleaning device, of the rack, a metal pipe placed on the placing inclined frame on the placing plate is horizontal, and the placing inclined frame comprises a plurality of groups of bottom rods; a plurality of groups of rack plates which are gradually lifted are reversely arranged along the length direction of the bottom rod; a feeding assembly, an annealing assembly and a discharging assembly are installed on the rack gradually away from the cleaning device, the feeding assembly sequentially transfers the metal pipes placed on the inclined frame to the annealing assembly to be annealed, and the discharging assembly automatically transfers the annealed metal pipes and discharges the annealed metal pipes in batches. According to the device, the inclined metal pipe is directly converted into horizontal annealing through the inclined placing plate, so that procedures are reduced, and the cost is saved; according to the full-automatic production line, the manual contact injury is avoided, the working procedure is smooth, and the working efficiency is high.

Description

Technical Field

[0001] The invention belongs to the technical field of metal tube processing, and in particular relates to a device for automatically loading and unloading metal tube annealing. Background Art

[0002] Metal pipes need to be cleaned after being unloaded from the grinding equipment in batches. During cleaning, they need to be kept tilted to avoid water entering the pipes. The existing equipment converts the tilted metal pipes into a horizontal state for annealing during batch transfer, which increases the troublesome process. In addition, the temperature of the metal pipes before and after annealing is high and is not suitable for direct contact. In order to facilitate the transfer of metal pipes from the cleaning tank and batch unloading, a more complete and automatic device is needed. Summary of the invention

[0003] In view of the problems mentioned in the background technology, the purpose of the present invention is to provide a device for automatic loading and unloading of metal tube annealing to solve the problems mentioned in the background technology.

[0004] The above technical objectives of the present invention are achieved through the following technical solutions:

[0005] A device for automatically loading and unloading metal tube annealing comprises a frame and an inclined placement frame, wherein an inclined placement plate is installed at the top end of the frame close to a cleaning device, and the metal tubes on the inclined placement frame placed on the placement plate are horizontal, and the inclined placement frame comprises multiple groups of bottom rods, and multiple groups of gradually rising rack plates are arranged in the opposite direction along the length of the bottom rods; a loading assembly, an annealing assembly and a unloading assembly are respectively installed on the frame gradually away from the cleaning device, and the loading assembly transfers the metal tubes on the inclined placement frame to the annealing assembly for annealing in sequence, and the unloading assembly automatically transfers the annealed metal tubes and unloads them in batches.

[0006] As a preferred technical solution, the loading assembly includes a pushing cylinder whose output shaft is perpendicular to the bottom rod, the pushing cylinder is installed on the frame, a lifting cylinder with an output shaft facing upward is installed on the output end of the pushing cylinder, a movable saw groove plate is installed on the output end of the lifting cylinder, and a fixed saw groove plate is installed on the frame on both sides of the movable saw groove plate, and one end of the movable saw groove plate is inserted under the metal tube in the rack plate.

[0007] As an optimal technical solution, the loading assembly also includes a handwheel and a slide rail both mounted on the frame, a connecting plate is mounted on the sliding end of the slide rail, the handwheel is threadedly connected to the connecting plate, a mounting plate is mounted on the sliding end of the slide rail, and a pushing cylinder is mounted on the mounting plate.

[0008] As a preferred technical solution, the annealing assembly includes a conveyor belt and a rotating wheel installed on a frame. The rotating wheel is coaxial with the drive wheel of the conveyor belt and is close to the loading assembly. A plurality of groups of accommodating grooves are arranged at equal intervals on the conveyor belt. A plurality of groups of lifting blocks with transfer grooves are arranged at equal intervals on the rotating wheel. The annular distance between adjacent lifting blocks is an integer multiple of the distance between adjacent accommodating grooves. The lifting block closest to the loading assembly is located below the unloading end of the loading assembly.

[0009] As a preferred technical solution, a plurality of adjustment slots are provided on the rotating wheel at equal intervals, and the lifting blocks are adjustably installed in the adjustment slots.

[0010] As a preferred technical solution, the unloading component includes a transfer component, a material receiving component, a pushing component and a unloading plate. The transfer component is located below the unloading end of the annealing component. The transfer component and the pushing component are respectively located at both ends of the material receiving component. The pushing component pushes the unloading plate to the output end of the material receiving component. The material receiving component transfers the unloading plate to the unloading end of the transfer component. The transfer component will transfer the metal tube on the annealing component to the unloading plate on the transfer component in turn.

[0011] As a preferred technical solution, the transfer assembly includes a pushing cylinder 2 whose output shaft is perpendicular to the bottom rod, the pushing cylinder 2 is installed on the frame, and a lifting cylinder 2 with an output shaft facing upward is installed on the output end of the pushing cylinder 2, and a movable saw groove plate 2 is installed on the output end of the lifting cylinder 2, and fixed saw groove plates 2 are installed on the frame on both sides of the movable saw groove plate 2. The length of the movable saw groove plate 2 is greater than that of the fixed saw groove plate 2, and the movable saw groove plate 2 closest to one end of the annealing assembly is located below the unloading end of the annealing assembly.

[0012] As an optimal technical solution, the material receiving assembly includes a transverse moving cylinder one installed on the frame, the moving direction of the transverse moving cylinder one is consistent with the transmission direction of the annealing assembly, a lifting cylinder three is installed on the output end of the transverse moving cylinder one, and a material receiving plate is installed on the output end of the lifting cylinder three, and the material receiving plate is in contact and connected with the unloading plate.

[0013] As a preferred technical solution, the pushing assembly includes a transverse moving cylinder 2 installed on the frame, the moving direction of the transverse moving cylinder 2 is perpendicular to the moving direction of the transverse moving cylinder 1, and a pushing plate is installed on the output end of the transverse moving cylinder 2. The top of the pushing plate passes through the top of the frame, and the pushing plate is in contact and connected with the unloading plate.

[0014] As an optimal technical solution, a group of saw groove plates are installed on both sides of the bottom plate of the unloading plate, and multiple groups of push rods are installed at the end of the saw groove plate away from the transverse cylinder. The receiving plate and the frame on the transverse cylinder are both in contact with the bottom plate.

[0015] Beneficial Effects

[0016] This device uses an inclined placement plate to directly convert the inclined metal pipe into horizontal annealing, which reduces the number of processes and saves costs; loading components and unloading components are arranged before and after the annealing component, and the fully automatic assembly line avoids injuries caused by manual contact, and the process is smooth and the work is efficient.

[0017] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a three-dimensional structural diagram of a device for automatically loading and unloading metal tube annealing proposed by the present invention;

[0019] Figure 2 The three-dimensional structure of the feeding assembly proposed by the present invention Figure 1 ;

[0020] Figure 3 The three-dimensional structure of the feeding assembly proposed by the present invention Figure 2 ;

[0021] Figure 4 A three-dimensional structural diagram of the annealing assembly proposed by the present invention;

[0022] Figure 5 For the present invention Figure 4 A magnified view of point A;

[0023] Figure 6 The three-dimensional structure of the blanking assembly proposed by the present invention Figure 1 ;

[0024] Figure 7 The three-dimensional structure of the blanking assembly proposed by the present invention Figure 2 .

[0025] Figure numerals: 1, frame; 11, placement plate; 2, inclined frame; 21, rack plate; 22, handle; 3, preparation frame; 4, loading assembly; 41, hand wheel one; 42, connecting plate one; 43, slide rail one; 44, mounting plate one; 45, pushing cylinder one; 46, lifting cylinder one; 47, movable saw groove plate one; 48, fixed saw groove plate one; 5, annealing assembly; 51, conveyor belt; 511, receiving groove; 52, rotating wheel; 521, lifting block; 522, adjusting groove; 6, unloading assembly ;61. Transfer assembly;611. Hand wheel two;612. Connecting plate two;613. Slide rail two;614. Push cylinder two;615. Lifting cylinder two;616. Movable saw groove plate two;617. Fixed saw groove plate two;62. Material receiving assembly;621. Transverse cylinder one;622. Lifting cylinder three;623. Material receiving plate;63. Pushing assembly;631. Transverse cylinder two;632. Pushing plate;64. Unloading plate;641. Bottom plate;642. Saw groove plate;643. Push rod. DETAILED DESCRIPTION

[0026] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar symbols throughout represent the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0027] Example 1

[0028] refer to Figures 1 to 7 The device for automatically loading and unloading metal tube annealing described in this embodiment includes a frame 1 and an inclined frame 2. The inclined frame 2 includes multiple groups of bottom rods 23. Multiple groups of gradually rising rack plates 21 are arranged in the opposite direction along the length of the bottom rods 23. Multiple groups of tooth grooves for placing metal tubes are arranged at the top of the rack plates 21. Handles 22 are installed on the bottom rods 23 at both ends along the length direction of the rack plates 21.

[0029] An inclined placement plate 11 is installed at the top end of the frame 1 close to the cleaning device, and the metal pipes placed on the inclined frame 2 on the placement plate 11 are horizontal.

[0030] Preferably, the four corners of the placement plate 11 are provided with preparation frames 3 , and the preparation frames 3 are engaged and connected with the bottom rod 23 .

[0031] The inclined rack 2 is transferred from the cleaning device to the placement plate 11 by the handle 22. The placement plate 11 makes the inclined metal pipe return to the horizontal position, which is convenient for the next annealing process.

[0032] A loading assembly 4, an annealing assembly 5 and a unloading assembly 6 are installed on the frame 1 gradually away from the cleaning device. The loading assembly 4 transfers the metal tubes placed on the inclined frame 2 to the annealing assembly 5 for annealing in sequence, and the unloading assembly 6 automatically transfers the annealed metal tubes and unloads them in batches.

[0033] The feeding assembly 4 includes a pushing cylinder 45 whose output shaft is perpendicular to the bottom rod 23. The pushing cylinder 45 is installed on the frame 1. A lifting cylinder 46 with an output shaft facing upward is installed on the output end of the pushing cylinder 45. A movable saw groove plate 47 is installed on the output end of the lifting cylinder 46. Fixed saw groove plates 48 are installed on the frame 1 on both sides of the movable saw groove plate 47. One end of the movable saw groove plate 47 is inserted under the metal pipe in the rack plate 21.

[0034] Preferably, the loading assembly 4 also includes a handwheel 41 and a slide rail 43 both mounted on the frame 1, a connecting plate 42 is mounted on the sliding end of the slide rail 43, the handwheel 41 is threadedly connected to the connecting plate 42, a mounting plate 44 is mounted on the sliding end of the slide rail 43, and a pushing cylinder 45 is mounted on the mounting plate 44.

[0035] The lifting cylinder 46 lifts up the movable saw groove plate 47, and the movable saw groove plate 47 lifts up the metal tube on the rack plate 21, and the push cylinder 45 drives the lifting cylinder 46 to move toward the annealing assembly 5 by the distance between adjacent rectangular grooves, thereby transferring the metal tubes to the annealing assembly in sequence.

[0036] The annealing assembly 5 includes a conveyor belt 51 and a rotating wheel 52. The conveyor belt 51 is rotatably mounted on the frame 1 via a transmission wheel. The rotating wheel 52 is rotatably mounted on one end of the frame 1 close to the loading assembly 4. The rotating wheel 52 is coaxial with the transmission wheel of the conveyor belt 51. A plurality of groups of accommodating grooves 511 are arranged at equal intervals on the conveyor belt 51. A plurality of groups of lifting blocks 521 are arranged at equal intervals on the rotating wheel 52. The annular distance between adjacent lifting blocks 521 is an integer multiple of the distance between adjacent accommodating grooves 511. A transfer groove for accommodating a metal pipe is arranged on the lifting block 521. The lifting block 521 on the side closest to the loading assembly 4 is located below the saw groove of the nearest fixed saw groove plate 48.

[0037] Preferably, the annular distance between adjacent lifting blocks 521 is equal to the distance between adjacent accommodating grooves 511 .

[0038] Preferably, a plurality of adjustment slots 522 are provided at equal intervals on the rotating wheel 52 , and the lifting blocks 521 are adjustably installed in the adjustment slots 522 .

[0039] The rotating wheel 52 rotates to drive the lifting block 521 to rotate, and the lifting block 521 lifts the metal pipes from under the fixed saw groove plate 48 in sequence. The transfer groove limits the metal pipes. The rotating wheel 52 rotates to drive the lifting block 521 to place the metal pipes in the adjustment groove 522 in sequence, and the conveyor belt 51 drives the metal pipes to move toward the lower material assembly 6.

[0040] The unloading component 6 includes a transfer component 61, a material receiving component 62, a material pushing component 63 and a material unloading plate 64. The transfer component 61 is located below one side of the conveyor belt 51, the material receiving component 62 is located below the end of the transfer component 61 away from the conveyor belt 51, and the material pushing component 63 is located on one side of the material receiving component 62 away from the end of the transfer component 61. The material pushing component 63 pushes the material unloading plate 64 to the output end of the material receiving component 62, the material receiving component 62 transfers the material unloading plate 64 to the unloading end of the transfer component 61, and the transfer component 61 transfers the metal pipe from the conveyor belt 51 to the material unloading plate 64 in turn.

[0041] The transfer assembly 61 includes a pushing cylinder 614 whose output shaft is perpendicular to the bottom rod 23. The pushing cylinder 614 is installed on the frame 1. A lifting cylinder 615 with an output shaft facing upward is installed on the output end of the pushing cylinder 614. A movable saw groove plate 616 is installed on the output end of the lifting cylinder 615. Fixed saw groove plates 617 are installed on the frame 1 on both sides of the movable saw groove plate 616. The length of the movable saw groove plate 616 is greater than that of the fixed saw groove plate 617. The saw grooves of the movable saw groove plate 616 and the fixed saw groove plate 617 closest to one end of the conveyor belt 51 are located below a group of accommodating grooves 511 closest to the fixed saw groove plate 617.

[0042] Preferably, the transfer assembly 61 also includes a handwheel 611 and a slide rail 613, both of which are installed on the frame 1, a connecting plate 612 is installed at the sliding end of the slide rail 613, a pushing cylinder 614 is installed at the sliding end of the slide rail 613, the handwheel 611 is threadedly connected to the connecting plate 612, and a pushing cylinder 45 is installed at the sliding end of the slide rail 613.

[0043] The material receiving assembly 62 includes a transverse cylinder 621 installed on the frame 1. The moving direction of the transverse cylinder 621 is consistent with the transmission direction of the conveyor belt 51. A lifting cylinder 3 622 is installed on the output end of the transverse cylinder 621. A material receiving plate 623 is installed on the output end of the lifting cylinder 3 622. The material receiving plate 623 is in contact with the unloading plate 64.

[0044] The pushing assembly 63 includes a transverse cylinder 631 installed on the frame 1. The moving direction of the transverse cylinder 631 is perpendicular to the moving direction of the transverse cylinder 621. A pushing plate 632 is installed on the output end of the transverse cylinder 631. The top of the pushing plate 632 passes through the top of the frame 1, and the pushing plate 632 is in contact and connected with the unloading plate 64.

[0045] A group of saw groove plates 642 are installed on both sides of the bottom plate 641 of the unloading plate 64, and multiple groups of push rods 643 are installed on the end of the saw groove plate 642 away from the transverse cylinder 621. The receiving plate 623 and the frame 1 on the transverse cylinder 621 are both in contact with the bottom plate 641.

[0046] The conveyor belt 51 transfers the metal pipes to the movable saw groove plate 2 616 in sequence, the lifting cylinder 2 615 lifts the movable saw groove plate 2 616, and the pushing cylinder 2 614 drives the lifting cylinder 2 615 to move toward the material receiving assembly 62 a distance between adjacent rectangular grooves, thereby transferring the metal pipes to the unloading plate 64 on the material receiving assembly 62 in sequence. When the unloading plate 64 is full, the transverse cylinder 1 621 drives the unloading plate 623 to move to the other end of the transverse cylinder 1 621, and the lifting cylinder 3 622 rises so that the unloading plate 623 is flush with the frame 1 above the transverse cylinder 2 631. An empty unloading plate 64 is placed on the frame 1, and the transverse cylinder 2 631 is started, and the pushing plate 632 pushes the empty unloading plate 64 and the full unloading plate 64 until the empty unloading plate 64 is completely moved to the receiving plate 623, completing the complete unloading.

[0047] The device uses an inclined placement plate 11 to directly convert the inclined metal pipe into horizontal annealing, thereby reducing the number of processes and saving costs; a loading component 4 and a unloading component 6 are arranged before and after the annealing component 5, and the fully automatic assembly line avoids injuries caused by manual contact, and the process is smooth and the work is efficient.

[0048] It should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0049] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0050] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0051] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0052] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A device for automatically loading and unloading metal tube annealing, comprising a frame (1) and an inclined frame (2), characterized in that: A tilted placement plate (11) is installed at the top end of a side of a frame (1) close to a cleaning device. The metal pipes placed on a placement inclined frame (2) on the placement plate (11) are horizontal. The placement inclined frame (2) comprises a plurality of bottom rods (23). A plurality of rack plates (21) are arranged in the opposite direction along the length of the bottom rods (23) and gradually rise. A loading assembly (4), an annealing assembly (5) and a unloading assembly (6) are respectively installed on the frame (1) gradually away from the cleaning device. The loading assembly (4) sequentially transfers the metal pipes on the placement inclined frame (2) to the annealing assembly (5) for annealing. The unloading assembly (6) automatically transfers the annealed metal pipes and unloads them in batches.

2. The automatic loading and unloading device for annealing metal tubes according to claim 1 is characterized in that: The feeding assembly (4) includes a pushing cylinder (45) whose output shaft is perpendicular to the bottom rod (23), the pushing cylinder (45) is installed on the frame (1), and a lifting cylinder (46) with an output shaft facing upward is installed on the output end of the pushing cylinder (45), and a movable saw groove plate (47) is installed on the output end of the lifting cylinder (46), and fixed saw groove plates (48) are installed on the frame (1) on both sides of the movable saw groove plate (47), and one end of the movable saw groove plate (47) is inserted under the metal pipe in the rack plate (21).

3. The automatic loading and unloading device for annealing metal tubes according to claim 2 is characterized in that: The feeding assembly (4) also includes a hand wheel (41) and a slide rail (43) both mounted on the frame (1); a connecting plate (42) is mounted on the sliding end of the slide rail (43); the hand wheel (41) and the connecting plate (42) are threadedly connected; a mounting plate (44) is mounted on the sliding end of the slide rail (43); and a pushing cylinder (45) is mounted on the mounting plate (44).

4. The automatic loading and unloading device for annealing metal tubes according to claim 1 is characterized in that: The annealing assembly (5) comprises a conveyor belt (51) and a rotating wheel (52) mounted on a frame (1); the rotating wheel (52) is coaxial with the driving wheel of the conveyor belt (51) and is close to the loading assembly (4); a plurality of groups of receiving grooves (511) are arranged at equal intervals on the conveyor belt (51); a plurality of groups of lifting blocks (521) with transfer grooves are arranged at equal intervals on the rotating wheel (52); the annular distance between adjacent lifting blocks (521) is an integer multiple of the distance between adjacent receiving grooves (511); and the lifting block (521) closest to the loading assembly (4) is located below the unloading end of the loading assembly (4).

5. The automatic loading and unloading device for annealing metal tubes according to claim 4 is characterized in that: A plurality of adjustment slots (522) are arranged at equal intervals on the rotating wheel (52), and the lifting blocks (521) are adjustably installed in the adjustment slots (522).

6. The automatic loading and unloading device for annealing metal tubes according to claim 1 is characterized in that: The material unloading component (6) comprises a transfer component (61), a material receiving component (62), a material pushing component (63) and a material unloading plate (64). The transfer component (61) is located below the unloading end of the annealing component (5). The transfer component (61) and the material pushing component (63) are respectively located at two ends of the material receiving component (62). The material pushing component (63) pushes the material unloading plate (64) to the output end of the material receiving component (62). The material receiving component (62) transfers the material unloading plate (64) to the unloading end of the transfer component (61). The transfer component (61) sequentially transfers the metal tube on the annealing component (5) to the material unloading plate (64) on the transfer component (61).

7. The automatic loading and unloading device for annealing metal tubes according to claim 6 is characterized in that: The transfer assembly (61) includes a second push cylinder (614) whose output shaft is perpendicular to the bottom rod (23). The second push cylinder (614) is installed on the frame (1). A second lifting cylinder (615) with an output shaft facing upward is installed on the output end of the second push cylinder (614). A second movable saw groove plate (616) is installed on the output end of the second lifting cylinder (615). Two fixed saw groove plates (617) are installed on the frame (1) on both sides of the movable saw groove plate (616). The length of the second movable saw groove plate (616) is greater than the length of the fixed saw groove plate (617). The second movable saw groove plate (616) closest to one end of the annealing assembly (5) is located below the unloading end of the annealing assembly (5).

8. The automatic loading and unloading device for annealing metal tubes according to claim 6, characterized in that: The material receiving assembly (62) comprises a transverse cylinder 1 (621) mounted on the frame (1); the moving direction of the transverse cylinder 1 (621) is consistent with the transmission direction of the annealing assembly (5); a lifting cylinder 3 (622) is mounted on the output end of the transverse cylinder 1 (621); a material receiving plate (623) is mounted on the output end of the lifting cylinder 3 (622); and the material receiving plate (623) is in contact with and connected to the material unloading plate (64).

9. The automatic loading and unloading device for annealing metal tubes according to claim 8, characterized in that: The pushing assembly (63) includes a second transverse moving cylinder (631) installed on the frame (1), the moving direction of the second transverse moving cylinder (631) is perpendicular to the moving direction of the first transverse moving cylinder (621), and a pushing plate (632) is installed on the output end of the second transverse moving cylinder (631), the top end of the pushing plate (632) passes through the top end of the frame (1), and the pushing plate (632) is in contact with the unloading plate (64).

10. The automatic loading and unloading device for metal tube annealing according to claim 9, characterized in that: A group of saw groove plates (642) are respectively installed on both sides of the bottom plate (641) of the unloading plate (64), and a plurality of push rods (643) are installed at one end of the saw groove plate (642) away from the transverse cylinder (621). The receiving plate (623) and the frame (1) on the transverse cylinder (621) are both in contact with and connected to the bottom plate (641).

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