Adhesive tape shearing device of foam box sealing machine

Abstract

The invention discloses an adhesive tape shearing device of a foam box sealing machine, which belongs to the technical field of box sealing machines and comprises a machine core mounting plate, a rotating shaft rotationally mounted at the bottom of the inner side of the machine core mounting plate, a pressing plate fixedly mounted on the rotating shaft, a cutter obliquely mounted on the side edge of the pressing plate and a cutter protecting cover plate mounted at the end of the pressing plate in a hinged manner. First fixing rods are vertically fixed to the ends, away from the cutters, of the inner sides of the pressing plates. A lifting adjusting mechanism composed of a vertical groove, a first sliding block, a screw rod, a plane groove, an adjusting block and a positioning assembly is arranged on the machine core mounting plate, in the using process, the screw rod can be controlled to rotate by rotating the adjusting block, a second fixing rod on a second sliding block is driven to vertically move, precision control over the stretching length of a tension spring is conducted, and the service life of the tension spring is prolonged. Meanwhile, quick regulation and control can be achieved only by manually controlling rotation of the adjusting block in the adjusting process, and operation and use are more convenient.

Description

Technical Field

[0001] The invention relates to a shearing device, in particular to a tape shearing device of a foam box sealing machine, belonging to the technical field of sealing machines. Background Art

[0002] The tape cutting device is a key functional component of the carton sealing machine's movement. Its function runs through the entire sealing process and directly affects the efficiency and quality of the carton sealing. It is usually composed of a serrated blade, a pressure plate, and an elastic reset member. When the carton sealing machine completes the action of attaching the tape to the carton, the reset spring controls the blade on the pressure plate to move downward, completing the automatic cutting operation. Due to the elastic relaxation of the tension spring after long-term use, the blade will shake up and down during the tape cutting process. Although there are cut marks on the surface of the tape, it is not directly cut but broken. When this happens, the tension spring needs to be tightened and adjusted.

[0003] Currently, when adjusting the tension spring, the rod at the end of the tension spring is directly inserted into another positioning hole on the top of the movement plate. Although this can solve the problem, the length of the tension spring cannot be finely adjusted. The large tension will cause large vibrations when resetting, which will affect the service life of the movement. In addition, the adjustment requires the use of tools to pull and lift, which is inconvenient.

[0004] For this purpose, a tape cutting device for a foam box sealing machine is designed to optimize the above problems. Summary of the Invention

[0005] The main purpose of the present invention is to provide a tape cutting device for a foam box sealing machine to solve the problems raised in the above background technology.

[0006] The purpose of the present invention can be achieved by adopting the following technical solutions:

[0007] A tape cutting device for a foam box sealing machine comprises a core mounting plate, a rotating shaft rotatably mounted on the inner bottom of the core mounting plate, a pressing plate fixedly mounted on the rotating shaft, a cutting knife obliquely mounted on the side of the pressing plate, and a knife guard cover hingedly mounted on the end of the pressing plate;

[0008] A first fixing rod is vertically fixed to the end of the inner side of the pressure plate away from the cutter, a second fixing rod is vertically provided on the end of the inner side of the movement mounting plate close to the first fixing rod, a tension spring is provided between the first fixing rod and the second fixing rod, and a lifting and adjusting mechanism is provided on the movement mounting plate to control the vertical fine-tuning of the second fixing rod.

[0009] Preferably, a rubber shock-absorbing pad is obliquely provided at one end of the inner side of the movement mounting plate close to the first fixing rod, and the rubber shock-absorbing pad is located between the first fixing rod and the second fixing rod.

[0010] Preferably: the lifting and lowering adjustment mechanism includes a vertical slot, a first slider, a screw, a flat groove, an adjustment block and a positioning assembly, the vertical slot is vertically opened on the movement mounting plate, the first slider is vertically slidably arranged inside the vertical slot, the end of the second fixing rod is fixed to the side of the first slider, a screw is rotatably installed between the upper and lower ends of the vertical slot, the screw is threadedly connected to the first slider, a flat groove is opened at the top of the movement mounting plate directly above the vertical slot, the top of the screw extends to the top of the flat groove, an adjustment block is fixed to the top of the screw, and a positioning assembly for fixing the adjustment block is provided on the side of the flat groove.

[0011] Preferably: the positioning assembly includes a transverse groove, a second slider, a return spring, an insertion rod and a slot, the transverse groove is opened at the top of the movement mounting plate, and the transverse groove is located on the side of the planar groove, a second slider is slidingly arranged inside the transverse groove, a return spring is provided between the second slider and the inner end of the transverse groove, a insertion rod is vertically fixed on the side of the second slider close to the adjustment block, and the insertion rod slides and extends to the inside of the planar groove, slots are evenly opened along the circumference of the outer side of the adjustment block, and the insertion rod is inserted into the inside of the slot.

[0012] Preferably, the length of the second slider is greater than the width of the transverse groove, and both ends of the second slider protrude to both sides of the movement mounting plate respectively.

[0013] Preferably, the end of the insertion rod away from the second sliding block is tapered, and the tapered tip of the insertion rod is completely inserted into the interior of the slot.

[0014] Preferably, the slots are rectangular in shape, and twelve groups of the slots are arranged in a circular array.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. The present invention provides a lifting and adjusting mechanism consisting of a vertical slot, a first slider, a screw, a flat groove, an adjusting block and a positioning assembly on the movement mounting plate. During use, the screw can be controlled to rotate by rotating the adjusting block, thereby driving the second fixed rod on the second slider to move vertically, thereby accurately controlling the stretching length of the tension spring. At the same time, during the adjustment process, only the rotation of the adjusting block needs to be manually controlled to achieve rapid adjustment, which makes operation and use more convenient.

[0017] 2. The present invention uses a positioning assembly consisting of a transverse groove, a second slider, a return spring, an insert rod, and a slot to limit the adjustment block during use, avoiding rotation of the screw caused by full-time vibration, ensuring constant adjustment of the tension spring force, and having higher practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a front view of the tape sealing state of the present invention;

[0019] Figure 2 It is a partial structural diagram of the present invention;

[0020] Figure 3 For the present invention Figure 2 Enlarged view of point A in the middle;

[0021] Figure 4 This is a top-sectional view of the positioning state of the adjustment block of the present invention.

[0022] In the figure: 1, movement mounting plate; 101, rotating shaft; 102, pressure plate; 103, cutting knife; 104, knife guard cover

[0023] 2. First fixing rod; 3. Second fixing rod; 4. Tension spring;

[0024] 5. Lifting adjustment mechanism; 501. Vertical slot; 502. First slider; 503. Screw; 504. Flat groove; 505. Adjustment block;

[0025] 506, positioning assembly; 5061, transverse groove; 5062, second slider; 5063, return spring; 5064, insertion rod; 5065, slot;

[0026] 6. Rubber shock-absorbing pad. DETAILED DESCRIPTION

[0027] To make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them.

[0028] Therefore, the following detailed description of the embodiments of the present invention is not intended to limit the scope of the claimed invention, but merely represents some embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort shall fall within the scope of protection of the present invention.

[0029] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features and technical solutions therein may be combined with each other.

[0030] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0031] In the description of the present invention, it should be noted that the terms "upper" and "lower" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or the orientations or positional relationships in which the inventive product is typically placed when in use, or the orientations or positional relationships commonly understood by those skilled in the art. Such terms are intended solely to facilitate the description of the present invention and simplify the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" and the like are used solely for distinction and should not be construed as indicating or implying relative importance.

[0032] Example 1

[0033] like Figure 1 、 Figure 2 、 Figure 3 and Figure 4 As shown, this embodiment provides a tape cutting device for a foam box sealing machine, comprising a core mounting plate 1, a rotating shaft 101 rotatably mounted on the inner bottom of the core mounting plate 1, a pressing plate 102 fixedly mounted on the rotating shaft 101, a cutting knife 103 obliquely mounted on the side of the pressing plate 102, and a knife guard cover 104 hingedly mounted on the end of the pressing plate 102;

[0034] A first fixing rod 2 is vertically fixed to the end of the inner side of the pressure plate 102 away from the cutter 103, and a second fixing rod 3 is vertically provided on the end of the inner side of the movement mounting plate 1 close to the first fixing rod 2. A tension spring 4 is provided between the first fixing rod 2 and the second fixing rod 3, and a lifting adjustment mechanism 5 is provided on the movement mounting plate 1 to control the vertical fine-tuning of the second fixing rod 3.

[0035] In the initial state, the pressing plate 102 is mounted on the movement mounting plate 1 through the rotating shaft 101, and the tension spring 4 is reset. The bottom end of the pressing plate 102 is located below the movement mounting plate 1, and the pressing plate 102 is in an inclined state. The cutter 103 is tilted and fixed to the side of the pressing plate 102. The knife guard cover 104 is hinged at the end of the pressing plate 102 and is in a naturally closed state to protect the cutter 103. When sealing the box, the foam box passes between the two sets of sealing movements, which will squeeze the pressing plate 102. The bottom of the pressing plate 102 is parallel to the bottom of the movement mounting plate 1 and is in the lower Figure 1 The cutter 103 moves down with the pressing plate 102 to cut the tape, and the knife guard cover 104 rotates synchronously with the rotation of the pressing plate 102. After the shearing is completed, the cutter 103 is covered to prevent blade damage or contact with foreign objects. If the elasticity of the tension spring 4 is relaxed after long-term use, the cutter 103 will shake due to insufficient tension when moving down, causing the tape to be pulled apart instead of cut. At this time, the stretching length of the tension spring 4 needs to be adjusted by the lifting and adjusting mechanism 5 to restore its tension.

[0036] Example 2

[0037] The solution in Example 1 is further introduced below in conjunction with a specific working method, as described below:

[0038] like Figure 2 As shown, as a preferred embodiment, on the basis of the above method, a rubber shock-absorbing pad 6 is further inclined at one end of the inner side of the movement mounting plate 1 close to the first fixed rod 2, and the rubber shock-absorbing pad 6 is located between the first fixed rod 2 and the second fixed rod 3. When the tension spring 4 is reset and drives the pressure plate 102 to rotate rapidly, the first fixed rod 2 will hit the rubber shock-absorbing pad 6. The elastic deformation of the rubber absorbs the impact energy, reduces the vibration of the pressure plate 102 and the movement mounting plate 1, reduces noise, and extends the service life of the movement.

[0039] like Figure 3 As shown, as a preferred embodiment, on the basis of the above method, the lifting and lowering adjustment mechanism 5 further includes a vertical slot 501, a first slider 502, a screw 503, a planar groove 504, an adjustment block 505 and a positioning assembly 506. The vertical slot 501 is vertically opened on the movement mounting plate 1, and the first slider 502 is vertically slidably provided inside the vertical slot 501. The end of the second fixing rod 3 is fixed to the side of the first slider 502. A screw 503 is rotatably installed between the upper and lower ends of the vertical slot 501. The screw 503 is threadedly connected to the first slider 502. A planar groove 504 is opened at the top of the movement mounting plate 1 directly above the vertical slot 501. The top of the screw 503 extends to the top of the planar groove 504. The top of the screw 503 is fixed with an adjustment block 505, and the side of the planar groove 504 is provided with a positioning assembly 506 for fixing the adjustment block 505.

[0040] Rotating the adjusting block 505 drives the screw 503 to rotate. The screw 503 is threadedly connected to the first slider 502, converting the rotational motion into the vertical displacement of the first slider 502. The first slider 502 slides in the vertical groove 501, and the second fixing rod 3 fixed on its side moves synchronously with the slider, thereby changing the vertical distance between the second fixing rod 3 and the first fixing rod 2. The up and down movement of the second fixing rod 3 changes the stretching length of the tension spring 4. When the adjusting block 505 is rotated clockwise, the second fixing rod 3 moves upward, the tension spring 4 is lengthened, and the tension force increases. When it is rotated counterclockwise, the tension spring 4 shortens and the tension force decreases. The pitch of the screw 503 determines the adjustment accuracy. Combined with the rotation angle of the adjusting block 505, millimeter-level fine-tuning can be achieved.

[0041] like Figure 3As shown, as a preferred embodiment, on the basis of the above method, the positioning assembly 506 further includes a transverse groove 5061, a second slider 5062, a return spring 5063, an insertion rod 5064 and a slot 5065, the transverse groove 5061 is opened at the top of the movement mounting plate 1, and the transverse groove 5061 is located on the side of the planar groove 504, a second slider 5062 is slidingly arranged inside the transverse groove 5061, a return spring 5063 is provided between the second slider 5062 and the inner end of the transverse groove 5061, an insertion rod 5064 is vertically fixed on the side of the second slider 5062 close to the adjustment block 505, and the insertion rod 5064 slides and extends to the inside of the planar groove 504, and slots 5065 are evenly opened on the outer side of the adjustment block 505 along the circumference, and the insertion rod 5064 is inserted into the inside of the slot 5065.

[0042] Under the thrust of the return spring 5063, the insertion rod 5064 of the positioning assembly 506 is inserted into the slot 5065 on the outside of the adjustment block 505, preventing the adjustment block 505 from rotating, thereby locking the position of the screw 503. When adjustment is required, the second slider 5062 is pulled outward to compress the return spring 5063, so that the insertion rod 5064 is disengaged from the slot 5065. At this time, the adjustment block 505 can be rotated freely. After the adjustment is completed, the second slider 5062 is released, and the return spring 5063 pushes the insertion rod 5064 into the adjacent slot 5065 to achieve locking of the new position.

[0043] like Figure 3 As shown, as a preferred embodiment, on the basis of the above method, further, the length of the second slider 5062 is greater than the width of the transverse groove 5061, and the two ends of the second slider 5062 protrude to both sides of the movement mounting plate 1 respectively, and the two ends of the second slider 5062 protrude to both sides of the movement mounting plate 1, which is convenient for manual operation.

[0044] like Figure 4 As shown, as a preferred embodiment, on the basis of the above method, further, the end of the insertion rod 5064 away from the second slider 5062 is tapered, and the tapered tip of the insertion rod 5064 is completely inserted into the interior of the slot 5065. The end of the insertion rod 5064 is tapered, which cooperates with the rectangular slot 5065, and can be accurately positioned and easily inserted through the tapered surface guide to ensure stable locking.

[0045] like Figure 4 As shown, as a preferred embodiment, on the basis of the above method, further, the shape of the slot 5065 is rectangular, and the slot 5065 is provided with twelve groups in a circular array. When the pitch of the screw 503 is 1 mm, the adjustment block 505 rotates 30°. There are 12 groups of slots 5065, each group is spaced 30° apart, and the second fixing rod 3 moves about 0.083 mm, which meets the fine adjustment requirements of the tension of the tension spring 4.

[0046] Example 3

[0047] The solutions in Example 1 and Example 2 are further introduced below in conjunction with specific working methods, as described below:

[0048] In the initial state, the pressing plate 102 is mounted on the movement mounting plate 1 through the rotating shaft 101, and the tension spring 4 is reset. The bottom end of the pressing plate 102 is located below the movement mounting plate 1, and the pressing plate 102 is in an inclined state. The cutter 103 is tilted and fixed to the side of the pressing plate 102. The knife guard cover 104 is hinged at the end of the pressing plate 102 and is in a naturally closed state to protect the cutter 103. When sealing the box, the foam box passes between the two sets of sealing movements, which will squeeze the pressing plate 102. The bottom of the pressing plate 102 is parallel to the bottom of the movement mounting plate 1 and is in the lower Figure 1 The cutter 103 moves down with the pressing plate 102 to cut the tape, and the knife guard cover 104 rotates synchronously with the rotation of the pressing plate 102. After the shearing is completed, the cutter 103 is covered to prevent the blade from being damaged or contacted by foreign objects. If the elasticity of the tension spring 4 is relaxed after long-term use, the cutter 103 will shake due to insufficient tension when moving downward, resulting in the tape being pulled apart instead of being cut. The second slider 5062 is pulled outward to compress the reset spring 5063, so that the insertion rod 5064 is disengaged from the slot 5065. At this time, the adjusting block 505 can be rotated freely, and rotating the adjusting block 505 drives the screw 503 to rotate. The screw rod 503 is threadedly connected to the first slider 502, converting the rotational motion into the vertical displacement of the first slider 502. The first slider 502 slides in the vertical slot 501, and the second fixed rod 3 fixed on its side moves synchronously with the slider, thereby changing the vertical distance between the second fixed rod 3 and the first fixed rod 2. The up and down movement of the second fixed rod 3 changes the stretching length of the tension spring 4. When the adjusting block 505 is rotated clockwise, the second fixed rod 3 moves upward, the tension spring 4 is stretched, and the tension force increases. When it is rotated counterclockwise, the tension spring 4 shortens and the tension force decreases. After the adjusting block 505 completes its rotation, the second slider 5062 is released, and the reset spring 5063 pushes the insertion rod 5064 into the adjacent slot 5065 to achieve locking in the new position, and the tension adjustment of the tension spring 4 is completed.

[0049] The above is only a further embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes based on the technical solutions and concepts of the present invention within the scope disclosed by the present invention, which fall within the scope of protection of the present invention.

Claims

1. A tape cutting device for a foam box sealing machine, comprising a core mounting plate (1), a rotating shaft (101) rotatably mounted on the inner bottom of the core mounting plate (1), a pressing plate (102) fixedly mounted on the rotating shaft (101), a cutting knife (103) obliquely mounted on the side of the pressing plate (102), and a knife guard cover (104) hingedly mounted on the end of the pressing plate (102); Its characteristics are: A first fixing rod (2) is vertically fixed to an end of the inner side of the pressing plate (102) away from the cutter (103), a second fixing rod (3) is vertically provided to an end of the inner side of the movement mounting plate (1) close to the first fixing rod (2), a tension spring (4) is provided between the first fixing rod (2) and the second fixing rod (3), and a lifting adjustment mechanism (5) for controlling vertical fine adjustment of the second fixing rod (3) is provided on the movement mounting plate (1).

2. The tape cutting device of the foam box sealing machine according to claim 1, characterized in that: A rubber shock-absorbing pad (6) is obliquely provided on one end of the inner side of the movement mounting plate (1) close to the first fixing rod (2), and the rubber shock-absorbing pad (6) is located between the first fixing rod (2) and the second fixing rod (3).

3. The tape cutting device of the foam box sealing machine according to claim 1, characterized in that: The lifting and lowering adjustment mechanism (5) includes a vertical slot (501), a first slider (502), a screw (503), a plane groove (504), an adjustment block (505) and a positioning assembly (506). The vertical slot (501) is vertically opened on the movement mounting plate (1). The first slider (502) is vertically slidably provided inside the vertical slot (501). The end of the second fixing rod (3) is fixed to the side of the first slider (502). The upper and lower ends of the vertical slot (501) are fixed to the side of the first slider (502). A screw rod (503) is rotatably installed between the two guide rails, and the screw rod (503) is threadedly connected to the first slider (502). A planar groove (504) is provided on the top of the movement mounting plate (1) just above the vertical groove (501). The top end of the screw rod (503) extends to the top of the planar groove (504). An adjusting block (505) is fixed to the top end of the screw rod (503). A positioning assembly (506) for fixing the adjusting block (505) is provided on the side of the planar groove (504).

4. The tape cutting device of the foam box sealing machine according to claim 3, characterized in that: The positioning assembly (506) comprises a transverse groove (5061), a second slider (5062), a return spring (5063), an insertion rod (5064) and a slot (5065). The transverse groove (5061) is provided on the top of the movement mounting plate (1), and the transverse groove (5061) is located on the side of the planar groove (504). The second slider (5062) is slidably provided inside the transverse groove (5061). A return spring (5063) is provided between the second slider (5062) and the inner end of the transverse groove (5061). An insertion rod (5064) is vertically fixed on a side of the second slider (5062) close to the adjustment block (505), and the insertion rod (5064) slides and extends to the inside of the planar groove (504). The outer side of the adjustment block (505) is evenly provided with slots (5065) along the circumferential direction, and the insertion rod (5064) is inserted into the inside of the slot (5065).

5. The tape cutting device of the foam box sealing machine according to claim 4, characterized in that: The length of the second slider (5062) is greater than the width of the transverse groove (5061), and both ends of the second slider (5062) protrude to both sides of the movement mounting plate (1).

6. The tape cutting device of the foam box sealing machine according to claim 4, characterized in that: One end of the insertion rod (5064) away from the second slider (5062) is tapered, and the tapered tip of the insertion rod (5064) is completely inserted into the interior of the slot (5065).

7. The tape cutting device of the foam box sealing machine according to claim 4, characterized in that: The slots (5065) are rectangular in shape, and twelve groups of slots (5065) are arranged in a circular array.

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