Adhesive tape winding machine for end sealing and end adhesive tape sealing method

Abstract

The invention relates to the technical field of automatic winding, in particular to an end-sealed adhesive tape winding machine which comprises an adhesive tape winding mechanism, the adhesive tape winding mechanism is used for driving an adhesive tape to move circumferentially and comprises a winding driver, a rotating arm mounted at the output end of the winding driver and an adhesive tape mounting frame, and the adhesive tape mounting frame protrudes out of the rotating arm; the device further comprises a folding and troweling mechanism, the folding and troweling mechanism comprises a folding plate, a troweling plate and a linear driver, and the linear driver is used for driving the troweling plate to move to the position above / below the packaging pipe with the end to be sealed. According to the end adhesive tape sealing method, the adhesive tape winding machines for end sealing are needed, the number of the adhesive tape winding machines for end sealing is two, the adhesive tape winding machines for end sealing are located on the two axial sides of a packaging pipe to be subjected to end sealing respectively, and when the adhesive tape winding machines for end sealing on the two sides wind the ends of packaging bags at the respective ends respectively. According to the scheme, the problem that the production efficiency is affected due to the fact that an existing winding machine needs to wind the two unoccupied ends of a pipe package in sequence is solved.

Description

Technical Field

[0001] The invention relates to the technical field of automatic winding, and in particular to an end-sealed tape winding machine and an end-sealed tape sealing method. Background Art

[0002] After the production of some long straight pipes, the pipes are often placed in packaging bags for packaging. In the current automated production, this type of bagging is mostly done by opening a plastic film bag to cover the pipe, and then cutting / melting the film bag. In this way, both ends of the packaging bag are open / unsealed, and a heat sealer is required to heat-seal the two axial ends of the packaging bag. For example, in the production of long straight copper pipes, such packaging will be used.

[0003] However, in actual transportation, it was found that the sealing position must be a certain distance away from the end of the pipe to ensure that the heat seal does not affect the quality of the pipe. Under this sealing method, the empty length in the packaging bag is greater than the length of the pipe and there is a longer section, which is several centimeters or even longer. In order to prevent the pipe from moving axially in the packaging bag during transportation, before leaving the factory, the part of the end of the packaging bag that is longer than the pipe is manually folded onto the pipe and then wrapped with tape. This not only solves the problem of free axial movement of the pipe in the packaging bag, but also makes the end of the pipe packaging bag look more neat and beautiful. However, the efficiency of manual wrapping is low and the tightness of the wrapped tape is not standard, which affects the product packaging quality.

[0004] However, this method requires manual winding of each end, which increases labor costs. At present, most of the winding machines on the market are winding machines for specific products, such as an automatic cutting machine for wrapped wire with patent announcement number CN220837700U, a carton tape winding packaging machine with CN217456662U, and a smoothing mechanism of a winding packaging machine with CN217295123U. These are winding packaging for specific products, and basically can only complete the winding function. If they are applied to the winding of the flat-laid pipe packaging bags, there are the following problems:

[0005] First, the end of the packaging bag still needs to be manually folded over / under the tube before it can be wrapped. Manual operation is essential, which increases labor costs.

[0006] Second, most wrapping machines wrap around the middle of the product, so the tape wrapping is completed on a set ring frame. When in use, the wrapped product must be inserted into the ring frame before packaging; however, since both ends of the pipe need to be packaged this time, if the product needs to be inserted into the ring frame before packaging, it means that the sealing and wrapping of the two ends need to be done twice, which reduces production efficiency.

[0007] Third, because the pipes are laid flat and in only one layer, the cross-section that is wrapped during packaging is flat and wide. When the tape is pulled out and wrapped, it is easy for the tape to be difficult to straighten. If the tape cannot be straightened, the winding quality of the tape will be affected. Summary of the invention

[0008] The present invention is intended to provide a tape wrapping machine with end sealing, so as to solve the problem that the existing wrapping machine needs to wrap the two free ends of the tube packaging separately, thus affecting the production efficiency.

[0009] In order to achieve the above object, the present invention adopts the following technical scheme:

[0010] A tape winding machine with end sealing includes a tape winding mechanism, which is used to drive the tape to move circumferentially. The tape winding mechanism includes a winding driver, a rotating arm installed at the output end of the winding driver, and a tape mounting frame installed at the free end of the rotating arm, wherein the tape mounting frame protrudes from the rotating arm.

[0011] The principle and advantage of this solution are: when this solution is adopted, because the tape installation frame protrudes from the rotating arm, when the rotating arm drives the tape installation frame to move circumferentially, the rotating arm can be located on the outside of the wrapped packaging bag, so that it is convenient to place two wrapping machines at both ends of the packaging bag respectively, without the need for axial movement of the wrapped body, that is, to wrap and seal the two end ends at the same time, which helps to improve the winding efficiency of the tape.

[0012] Preferably, as an improvement, it also includes a folding and smoothing mechanism, which includes a folding plate, a smoothing plate and a linear drive. The maximum axial distance between the folding plate and the end of the packaging tube to be sealed is greater than the maximum axial distance between the smoothing plate and the end of the packaging tube to be sealed. The smoothing plate is located between the folding plate and the packaging tube to be sealed in terms of spatial height. The linear drive is used to drive the smoothing plate to move above / below the packaging tube to be sealed, so that the smoothing plate folds the remaining end of the packaging bag until it is close to or in contact with the packaging bag on the surface of the tube.

[0013] Beneficial effect: When this solution is adopted, if the smear plate is located above the packaging tube to be sealed at the end, and the folding plate is also located above the packaging tube to be wrapped at the end, when the tube with the packaging bag moves downward to the position to be wrapped relative to the folding plate, the part of the packaging bag that is longer than the tube will contact the folding plate that is closer to the axial distance, and thus cannot be relatively folded upward as the tube continues to move downward; then, after the linear drive is started, the linear drive drives the smear plate to push the folded packaging bag to the top of the tube, because the smear plate is located at the packaging tube to be sealed at the end, The linear drive drives the screed plate to move between the tube and the folding plate, so that the screed plate pushes the folded packaging bag to continue to fold it until it is in contact with the packaging bag above the tube, thereby realizing the upward folding of the packaging bag about 180°. After folding, the remaining end of the packaging bag is folded until it is close to or in contact with the packaging bag on the surface of the tube, and then wrapped by the winding mechanism. This solution replaces the manual folding of the end of the packaging bag, which helps to improve production efficiency; and after mechanical folding and smoothing, the folding and smoothing quality of the packaging bag is consistent, which helps to ensure the beautiful appearance after winding.

[0014] If the packaging tube to be sealed at the end moves upward relative to the folding plate, the screed plate and the folding plate are located below the packaging tube to be sealed at the end. At this time, the packaging tube moves in height relative to the folding plate, which will cause the remaining end of the packaging bag of the tube to be relatively folded downward. Then the linear drive is used to control the movement of the screed plate, so that the screed plate continues to fold the folded packaging bag until a section of the end of the packaging bag is attached to a section of the packaging bag facing the tube, thereby realizing a 180° downward folding of the end of the packaging bag. After folding, the remaining end of the packaging bag is folded until it is close to or in contact with the packaging bag on the surface of the tube, and the tape is still wrapped by the wrapping mechanism.

[0015] In addition, the design of the folding and smoothing mechanism makes it unnecessary to heat-seal the part of the packaging bag that is longer than the tube. The folding and smoothing mechanism can be used to fold the packaging bag about 180° beyond the tube, and then the winding mechanism can be used to wind the folded packaging bag, eliminating the heat-sealing step, simplifying the production process, and reducing equipment costs.

[0016] Preferably, as an improvement, the folding plate and the smoothing plate are both fixed at the output end of the linear drive, so that after the linear drive is started, the folding plate continues to push the remaining end of the packaging bag to continue to fold at the part relatively to the smoothing plate away from the surface of the pipe, and the smoothing plate also continues to push the remaining end of the packaging bag to be folded onto the packaging bag close to the surface of the pipe. The folding plate folds the remaining end of the packaging from the remaining section of the packaging bag away from the remaining root, while the smoothing plate folds from the root of the remaining end of the packaging bag or a position close to the root. One is equivalent to a preliminary fold, and the other is equivalent to a complete fold, thereby ensuring that the remaining end of the packaging bag is folded more neatly during the folding process.

[0017] Preferably, as an improvement, the trowel plate is elastic and can be pressed against the surface of the pipe so that the trowel plate can press the spare folded end of the packaging bag during the folding process of the packaging bag to ensure that the tape can be tightly wound when it is pulled out and wound.

[0018] The elastic plate is any one of a rubber plate and a silicone plate, so that the structure is simple and easy to implement.

[0019] Preferably, as an improvement, a mounting frame is fixed to the output end of the linear drive, and the folding plate and the trowel plate can be detachably connected to the mounting frame to facilitate replacement of the trowel plate / folding plate after it is damaged.

[0020] Preferably, as an improvement, the tape installation frame includes a mounting shaft fixed to the free end of the rotating arm, a tape installation sleeve sleeved on the mounting shaft, and a clamping assembly for clamping the tape installation sleeve from both axial ends of the tape installation sleeve, the tape installation sleeve can move axially and rotate circumferentially along the mounting shaft, the clamping assembly includes a friction member 1, a friction member 2, and an elastic member, the friction member 1 and the friction member 2 are respectively located on both axial sides of the tape installation sleeve and are both used to resist the tape installation sleeve, one of the friction member 1 and the friction member 2 is fixedly installed and the other is resisted by the elastic member and the pressing force is toward the tape installation sleeve, and the pressing force applied by the elastic member on the tape installation sleeve can be adjusted.

[0021] Beneficial effect: by setting the tape installation frame, the tape installation sleeve is clamped by the friction member 1 and the friction member 2, and the clamping force of the tape installation sleeve between the friction member 1 and the friction member 2 can be adjusted through the elastic member, so as to facilitate the adjustment of the friction force of the tape installation sleeve, and avoid the situation that the friction force of the tape installed on the tape installation sleeve is too small and the tape is released too fast when the tape is driven by the rotating arm to move circumferentially, resulting in wrinkles of the released tape, and the problem that the friction force of the tape installation sleeve is too large and the tape is difficult to release can also be avoided, so that the clamping force of the clamping component can be adjusted to keep the tape straight during the tape release and winding process, ensuring that the tape can be tightly wrapped around the end of the packaging bag.

[0022] Preferably, as an improvement, the friction member 1 and the friction member 2 are both annular, the friction member 1 is threadedly connected to the mounting shaft, the friction member 2 is loosely sleeved on the mounting shaft, and the elastic member is pressed against the friction member 2.

[0023] Beneficial effects: When this solution is adopted, the structure of the clamping assembly is made simpler by further improving the friction member 1 and the friction member 2, and the clamping force can be adjusted without adjusting the elastic member by simply twisting the position of the friction member 1 on the installation shaft. In addition, the position of the friction member 1 is fixed by a thread, and the friction member 2 moves axially relative to the installation shaft, that is, the friction member 2 does not produce circumferential rotation, so that the clamping assembly can further have a greater clamping force on the tape installation sleeve.

[0024] Preferably, as an improvement, the elastic member is a spring, which is sleeved on the mounting shaft, one end of the spring abuts against the mounting root position of the mounting shaft, and the other end of the spring abuts against two end surfaces of the friction member.

[0025] Preferably, as an improvement, the mounting shaft is a round shaft, a socket is provided on the friction member 2, a strip hole corresponding to the socket is provided on the mounting shaft, the length direction of the strip hole is the axial direction of the mounting shaft, the socket can be installed with a pin, the pin can be inserted into the strip hole and move in the strip hole along the length direction of the strip hole, so that the installation limitation of the friction member 2 is simpler, and after the friction member 2 is inserted by the pin, the friction member 2 cannot rotate relative to the mounting shaft, which helps to increase the friction between the friction member 2 and the tape mounting sleeve, thereby increasing the friction received by the tape mounting sleeve during its rotation, and further ensuring that when the flat and wide packaging bag is wrapped in this scheme, it is not easy or even impossible for the tape to break and become crooked.

[0026] Preferably, as an improvement, it also includes a gluing mechanism, a pressing mechanism and a cutting mechanism located below the packaging tube to be sealed at the end, the gluing mechanism includes a gluing driver and a gluing roller, the gluing driver is used to drive the gluing roller close to or away from the wrapped body, the pressing mechanism includes a pressing driver and a pressing plate, the pressing driver is used to drive the pressing plate away from or close to the wrapped body, the cutting mechanism includes a cutter and a cutting driver, the cutting driver is used to drive the cutter to cut the tape, and the cutting knife is located between the gluing roller and the pressing plate.

[0027] Beneficial effect: When adopting this scheme, it is only necessary to stick the end of the tape on the glue connecting roller when using it for the first time. Then, when wrapping the end of the packaging bag, the circumferential movement of the tape realizes the circumferential sticking of the tape on the packaging bag. The glue connecting driver is controlled to drive the glue connecting roller away from the packaged pipe, and the head end of the tape will be torn off as the glue connecting roller moves away. At this time, the circumferential rotation of the rotating arm drives the tape to wrap around the end of the packaging bag of the pipe. After winding to the set number of circles, the glue connecting roller is started again and is located between the adhesive surface of the tape and the pipe packaging bag. The tape will stick to the glue connecting roller. At this time, the clamping plate of the clamping mechanism is controlled to stick the tape to the packaging bag, and then the cutting knife of the cutting mechanism is controlled to move onto the tape spanning the glue connecting roller and the clamping block to realize the cutting of the tape, thereby completing the fully automated wrapping of the tape around the end of the packaging pipe to be sealed, greatly improving the degree of automation.

[0028] Preferably, as an improvement, there are two pressing mechanisms, one for pressing the leading end of the tape and the other for pressing the trailing end of the tape, to ensure that both the leading and trailing ends of the tape can be tightly adhered.

[0029] The present invention also provides an end tape sealing method, which requires a tape wrapping machine for end sealing. There are two tape wrapping machines for end sealing, which are respectively located on both axial sides of the packaging tube to be sealed at the end. When in use, the tape wrapping machines for end sealing on both sides respectively wrap the packaging bag ends at their respective ends. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 This is a schematic cross-sectional view of a packaging bag that needs to be wrapped with adhesive tape according to an embodiment of the present invention.

[0031] Figure 2 The figure is a schematic diagram of the three-dimensional structure of the tape wrapping machine for end sealing according to an embodiment of the present invention.

[0032] Figure 3 for Figure 2 The front view of (with the wrapped packaging bag added).

[0033] Figure 4 for Figure 3 Top view of the .

[0034] Figure 5 The present invention is a schematic diagram of a process of folding the spare end of a packaging bag in a method for sealing with an end tape according to an embodiment of the present invention.

[0035] Figure 6 It is a schematic diagram of the three-dimensional structure of the tape installation frame in the first embodiment of the present invention.

[0036] Figure 7 for Figure 6 Schematic diagram of the axial section.

[0037] Figure 8 for Figure 6 Exploded diagram.

[0038] Fig. 9 for Figure 2 A local enlarged schematic diagram of the .

[0039] Fig.10 It is a schematic diagram of the three-dimensional structure of the glue connecting roller and the glue connecting arm according to the first embodiment of the present invention.

[0040] Fig.11 Schematic diagram of the three-dimensional structure of the cutter and the cutter arm according to the first embodiment of the present invention.

[0041] Fig.12 It is a schematic diagram of the three-dimensional structure of the clamping plate and the clamping arm according to the first embodiment of the present invention. DETAILED DESCRIPTION

[0042] The following is further described in detail through specific implementation methods:

[0043] The figure marks in the drawings of the specification include: folding and smoothing mechanism 1, linear drive 11, folding plate 12, smoothing plate 13, glue wrapping mechanism 2, winding drive 21, rotating arm 22, tape mounting frame 23, mounting shaft 231, friction member 1 232, tape mounting sleeve 233, friction member 2 234, elastic member 235, latch 236, glue connection mechanism 3, glue connection drive 31, glue connection roller 32, glue connection arm 33, pressing mechanism 4, pressing drive 41, pressing plate 42, pressing arm 43, cutting mechanism 5, cutting drive 51, cutter 52, cutter arm 53, mounting seat 6, packaging bag to be wrapped 100, free end of packaging bag 101, pipe 10, rotation center line A.

[0044] The embodiment is basically as shown in the attached Figures 1 to 12 shown.

[0045] Combination Figures 2 to 4 A tape wrapping machine for end sealing comprises a folding and smoothing mechanism 1, a glue wrapping mechanism 2, a glue splicing mechanism 3, a pressing mechanism 4 and a cutting mechanism 5. The folding and smoothing mechanism 1 is used for folding the spare end of the packaging tube to be sealed; the glue wrapping mechanism 2 is used for driving the tape to move circumferentially, the glue splicing mechanism 3 is used for receiving the end of the tape, the pressing mechanism 4 is used for pressing the end of the tape onto the wound packaging bag, and the cutting mechanism 5 is used for cutting the tape.

[0046] The wrapping machine of this embodiment is used for sealing and wrapping the ends of a row of long straight metal tubes (such as copper tubes) after they are covered with packaging bags.

[0047] The specific institutions are as follows:

[0048] 1. Folding and leveling mechanism 1

[0049] The folding and smoothing mechanism 1 includes a linear drive 11, a folding plate 12 and a smoothing plate 13. The linear drive 11 is fixedly installed, and a mounting frame is fixed to the output end of the linear drive 11. The folding plate 12 and the smoothing plate 13 can be detachably connected to the mounting frame (such as screw connection). The linear drive 11 is used to drive the folding plate 12 and the smoothing plate 13 to move axially along the wound pipe to approach or move away from the wound part. The folding plate 12 and the smoothing plate 13 are both elastic plates, which are any one of rubber plates / silicone plates. The installation positions of the folding plate 12 and the smoothing plate 13 are perpendicular to each other. In this embodiment, the mounting plate is horizontally installed, and the smoothing plate 13 is vertically installed. The folding plate 12 is located above the smoothing plate 13.

[0050] The maximum axial distance between the folding plate 12 and the end of the packaging tube to be sealed is greater than the maximum axial distance between the flat plate 13 and the end of the packaging tube to be sealed. The flat plate 13 is located between the folding plate 12 and the packaging tube to be sealed in terms of spatial height. The linear drive 11 is used to drive the flat plate 13 and the folding plate 12 to move above the packaging tube to be sealed. The flat plate 13 can be against the surface of the tube when it moves driven by the linear drive 11, so that the flat plate 13 folds all the remaining packaging bag part at the end of the tube to the top of the packaging bag and fits tightly to the surface of the tube.

[0051] 2. Winding mechanism

[0052] The winding mechanism includes a winding driver 21 , a rotating arm 22 installed at the output end of the winding driver 21 , and a tape mounting frame 23 installed at the free end of the rotating arm 22 , wherein the tape mounting frame 23 protrudes from the rotating arm 22 .

[0053] Specifically, the tape mounting bracket 23 includes a mounting shaft 231 fixed to the free end of the rotating arm 22 and a friction member 232, a tape mounting sleeve 233, a friction member 234 and an elastic member 235 sequentially mounted on the mounting shaft 231. The friction member 232 and the friction member 234 are both annular. The friction member 232 is threadedly connected to the cantilever end of the mounting shaft 231. The axial cross-sections of the friction member 232 and the friction member 234 are both T-shaped. The T-shaped head is a circular ring disk, which is used to abut against the end face of the tape mounting sleeve 233. The friction member 234 and the tape mounting sleeve 233 are hollowly sleeved on the mounting shaft 231. The elastic member 235 is a spring. One end of the spring 235 abuts against the rotating arm 22 or one end of the spring 235 abuts against the stepped surface of the mounting shaft 231 close to the rotating arm 22, and the other end of the spring 235 abuts against the end face of the friction member 234.

[0054] The friction member 1 232, the friction member 234 and the elastic member 235 form a clamping assembly. The axial position of the friction member 1 232 on the mounting shaft 231 can be adjusted by rotating the friction member 1 232, thereby adjusting the pressing force between the friction member 1 232 and the friction member 2 234 on the tape mounting sleeve 233, thereby adjusting the friction force on the tape mounting sleeve 233, ensuring that the pulled tape can always be kept in a straight state during the tape winding process, and then ensuring that the tape can be tightly wrapped around the end of the packaging bag.

[0055] In this embodiment, the installation shaft 231 is a stepped circular shaft, and the installation shaft 231 includes a large diameter section, a middle diameter section and a small diameter section which are connected in sequence. The large diameter section is used to be installed on the rotating arm 22, the spring is sleeved on the middle diameter section and abuts against the end surface of the large diameter section, the friction member 234 and the tape installation sleeve 233 are sleeved in the middle diameter section, and the friction member 1 232 is threadedly connected to the small diameter section. In this embodiment, in order to enable the friction member 1 232 to be locked, a gasket can be sleeved between the friction member 1 232 and the tape installation sleeve 233, and the thickness and number of the gasket can ensure that the friction member 1 232 can be locked on the small diameter section and can be used to cooperate with the friction member 2 234 and the spring to adjust the clamping force of the tape installation sleeve 233.

[0056] A radial insertion hole is provided on the friction member 234, and a strip hole corresponding to the insertion hole is provided on the mounting shaft 231. The length direction of the strip hole is the axial direction of the mounting shaft 231, and the insertion hole can be installed with a pin 236, and the pin 236 can be inserted into the strip hole and move in the strip hole along the length direction of the strip hole, so that the installation limitation of the friction member 234 is simpler, and after the friction member 234 is inserted by the pin 236, the friction member 234 cannot rotate relative to the mounting shaft 231, which helps to increase the friction between the friction member 234 and the tape mounting sleeve 233, thereby increasing the friction received by the tape mounting sleeve 233 during its rotation, and further ensuring that when the flat and wide packaging bag is wrapped in this scheme, it is not easy or even impossible for the tape to break.

[0057] For some cases where the length-to-width ratio of the wrapped parts is close to 1:1, the present solution can still be used to wrap the tape. When wrapping the tape, the tape needs to be released more easily, so that the friction force on the tape installation sleeve 233 needs to be smaller. At this time, it is only necessary to remove the pin 236 and / or rotate the friction member 232 toward the outside of the installation shaft 231 to reduce the friction force of the tape installation sleeve 233, thereby meeting the requirement of winding the tape straight in this type of packaging (if this type of winding with a length-to-width ratio of 1:1 also causes the tape installation sleeve 233 to be subjected to large friction, the tape release speed will be affected, which can easily cause the tape to be pulled and deformed).

[0058] 3. Gluing mechanism 3, pressing mechanism 4 and cutting mechanism 5

[0059] The glue splicing mechanism 3, the pressing mechanism 4 and the cutting mechanism 5 are all located below the packaging tube to be sealed at the end and are distributed in the winding direction of the tape. The glue splicing mechanism 3 includes a glue splicing driver 31 and a glue splicing roller 32. The glue splicing driver 31 is used to drive the glue splicing roller 32 to rotate toward or away from the wound body. The glue splicing roller 32 is rotatably connected to a glue splicing arm 33, and the glue splicing driver 31 drives the glue splicing arm 33 to rotate.

[0060] There are two clamping mechanisms 4, one of which is used to press the head end of the tape, and the other is used to press the tail end of the tape. Each clamping mechanism 4 includes a clamping driver 41 and a clamping plate 42. The clamping driver 41 is used to drive the clamping plate 42 away from or close to the wound body in a rotating manner. The clamping plate 42 is detachably connected to a provided clamping arm 43 (for example, a screw connection method). The clamping driver 41 drives the clamping arm 43 to rotate. The clamping plate 42 is an elastic plate made of rubber / silicone. The two clamping mechanisms 4 are arranged on the left and right sides of the glue connection mechanism 3.

[0061] The cutting mechanism 5 includes a cutting driver 51 and a cutter 52. The cutting driver 51 is used to drive the cutter 52 to cut the tape in a rotational manner. The cutter is located between the glue roller 32 and the clamping plate 42 used to press the tail end of the tape. The cutter 52 is detachably connected to a cutter arm 53 (for example, screw connection), and the cutting driver 51 drives the cutter arm 53 to rotate.

[0062] The glue joining mechanism 3, the pressing mechanism 4 and the cutting mechanism 5 are all mounted on the same mounting base 6. The glue joining driver 31, the pressing driver 41 and the cutting driver 51 can all be cylinders.

[0063] The rotation center lines of the glue connecting arm 33, the pressing arm 43 and the cutting arm 53 can overlap and are all rotatably connected to the mounting seat 6, so that the disassembly, assembly and maintenance of the glue connecting mechanism 3, the pressing mechanism 4 and the cutting mechanism 5 are simpler and more convenient.

[0064] The distances of the glue rod to the wound packaging tube are different when the glue rod is glued, the pressing block is pressed, and the cutter 52 is cut. The glue rod is at the farthest distance, the pressing block can be close to the wound packaging tube, and the cutter 52 is at an intermediate distance, so that the cutter 52 will not damage the wound body when cutting and the cutting is fast. When the cutter 52 is in the cutting position, the cutter 52 is at an angle relative to the glue roller 32 to make cutting easier.

[0065] This embodiment provides a method for sealing an end with an adhesive tape, comprising the following steps:

[0066] S1. Place two of the above-mentioned tape wrapping machines for end sealing at the winding working position of the packaging tube to be sealed at the end. The two wrapping machines are respectively located on both sides of the axial direction of the packaging tube to be sealed at the end, so that when the wrapping machines are used in subsequent steps, the tape wrapping machines for end sealing on both sides can wrap the ends of the packaging bags at their respective ends respectively.

[0067] S2. When wrapping and packaging are required, the tube covered with the packaging bag moves downward from above the folding plate 12 to the position to be wrapped. During the downward movement of the tube covered with the packaging bag, the free end of the packaging bag that exceeds the tube is automatically folded due to the restriction of the folding plate 12 during the downward movement of the packaging bag, thereby achieving preliminary folding of the free end of the packaging bag at a certain angle. The folding angle varies according to the distance between the folding plate 12 and the end of the tube, and the folding range is 40-90°.

[0068] S3. After the tube covered with the packaging bag moves to the winding position, the linear drive 11 of the folding and smoothing mechanism 1 is started. The linear drive 11 drives the smoothing plate 13 and the folding plate 12 to push the folded packaging bag above the tube, so that the smoothing plate 13 pushes the folded packaging bag to continue to fold it until it is in contact with the packaging bag above the tube, realizing the upward folding of the packaging bag by about 180°. After folding, the free end of the packaging bag is folded until it is in close contact with the packaging bag on the surface of the tube.

[0069] S4, on the basis of keeping the trowel plate 13 pressing the packaging bag, start the winding mechanism to wrap.

[0070] When winding, when using it for the first time, the end of the tape is attached to the glue roller 32, and then when winding the end of the packaging bag, the winding driver 21 of the winding mechanism drives the rotating arm 22 to rotate, and the tape on the tape mounting frame 23 at the free end of the rotating arm 22 moves circumferentially to achieve the surrounding adhesion of the tape on the packaging bag.

[0071] S41. After the adhesive tape is wound onto the packaging bag, the pressing plate 42 for pressing the head end of the adhesive tape is started. The pressing plate 42 presses the adhesive tape upward to the bottom of the packaging bag of the tube, and controls the adhesive roller 32 of the adhesive splicing mechanism 3 to move away from the packaging bag. During the moving away process, the end of the adhesive tape is torn off. After the end of the adhesive tape is torn off, the pressing plate 42 for pressing the head end of the adhesive tape is controlled to move away from the packaging bag to make room for the circumferential winding of the adhesive tape.

[0072] S42, the tape is wound circumferentially, and after being wound to a set number of turns, the glue-joining roller 32 is controlled to approach the packaging bag so that the glue-joining roller 32 is located between the adhesive surface of the tape and the tube packaging bag, and the tape will be adhered to the glue-joining roller 32. Then, the pressing plate 42 of the pressing mechanism 4 used for pressing the tail end of the tape is controlled to stick the tape to the packaging bag, and then the cutting knife of the cutting mechanism 5 is controlled to cut into the tape spanning the glue-joining roller 32 and the pressing block to achieve the cutting of the tape (after the process is completed, the end of the tape is just adhered to the glue-joining roller 32 again).

[0073] S5. After the winding is completed, the cutter 52, the pressing block and the glue roller 32 are all reset to their initial state to prepare for the next winding.

[0074] The present embodiment realizes automatic folding of the excess part of the tube packaging bag, automatic pressing of the folded end of the packaging bag, automatic winding, automatic tape cutting, and automatic glue connection, thereby realizing the automation of the entire process. The entire process does not require human assistance, and the tube covered with the packaging bag only needs to be moved downward to the winding position for convenient winding. The design of the tube packaging bag's own downward movement auxiliary folding plate 12 automatically realizes the initial folding of the empty end of the packaging bag, so that the entire winding machine has a simple structure, low cost, and the tape sealing method is also simple and convenient.

[0075] In addition, after the implementation of this solution, after the tube is put into the packaging bag, there is no need to heat-seal the packaging bag. Instead, it can be directly folded and sealed by wrapping the tape, which simplifies the operation process and saves the cost of heat-sealing equipment.

[0076] The above is only an embodiment of the present invention, and the common knowledge such as the known specific technical solutions and / or characteristics in the solution is not described in detail here. It should be pointed out that for those skilled in the art, without departing from the technical solution of the present invention, several modifications and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. An end-sealed tape wrapping machine, comprising a wrapping mechanism, the wrapping mechanism is used to drive the tape to move circumferentially, and is characterized by: The winding mechanism comprises a winding driver, a rotating arm installed at the output end of the winding driver, and a tape mounting frame installed at the free end of the rotating arm, wherein the tape mounting frame protrudes from the rotating arm.

2. The end-sealed tape wrapping machine according to claim 1, characterized in that: It also includes a folding and smoothing mechanism, which includes a folding plate, a smoothing plate and a linear drive. The maximum axial distance between the folding plate and the end of the packaging tube to be sealed is greater than the maximum axial distance between the smoothing plate and the end of the packaging tube to be sealed. The smoothing plate is located between the folding plate and the packaging tube to be sealed in terms of spatial height. The linear drive is used to drive the smoothing plate to move above / below the packaging tube to be sealed, so that the smoothing plate folds the remaining end of the packaging bag until it is close to or in contact with the packaging bag on the surface of the tube.

3. The end-sealed tape wrapping machine according to claim 2, characterized in that: The folding plate and the smearing plate are both fixed on the output end of the linear drive.

4. The end-sealed tape wrapping machine according to claim 3, characterized in that: The trowel plate is elastic and can be pressed against the surface of the pipe.

5. The end-sealed tape wrapping machine according to claim 4, characterized in that: A mounting frame is fixed on the output end of the linear drive, and the folding plate and the smearing plate can be detachably connected to the mounting frame.

6. The end-sealing tape wrapping machine according to any one of claims 1 to 5, characterized in that: The tape installation frame includes a mounting shaft fixed to the free end of the rotating arm, a tape installation sleeve sleeved on the mounting shaft, and a clamping assembly for clamping the tape installation sleeve from both axial ends of the tape installation sleeve. The tape installation sleeve can move axially and rotate circumferentially along the mounting shaft. The clamping assembly includes a friction member 1, a friction member 2, and an elastic member. The friction member 1 and the friction member 2 are respectively located on both axial sides of the tape installation sleeve and are both used to resist the tape installation sleeve. One of the friction member 1 and the friction member 2 is fixedly installed while the other is resisted by the elastic member and the pressing force is toward the tape installation sleeve. The pressing force applied by the elastic member to the tape installation sleeve can be adjusted.

7. The end-sealing tape wrapping machine according to claim 6, characterized in that: The friction piece 1 and the friction piece 2 are both ring-shaped. The friction piece 1 is threadedly connected to the installation shaft, the friction piece 2 is loosely sleeved on the installation shaft, and the elastic piece is tightly pressed against the friction piece 2.

8. The end-sealing tape wrapping machine according to any one of claims 1 to 5 and 7, characterized in that: It also includes a glue splicing mechanism, a pressing mechanism and a cutting mechanism located below the packaging tube to be sealed at the end. The glue splicing mechanism includes a glue splicing driver and a glue splicing roller. The glue splicing driver is used to drive the glue splicing roller to approach or move away from the wound body. The pressing mechanism includes a pressing driver and a pressing plate. The pressing driver is used to drive the pressing plate to move away from or approach the wound body. The cutting mechanism includes a cutter and a cutting driver. The cutting driver is used to drive the cutter to cut the tape. The cutting knife is located between the glue splicing roller and the pressing plate.

9. The end-sealing tape wrapping machine according to claim 8, characterized in that: There are two pressing mechanisms, one for pressing the head end of the tape and the other for pressing the tail end of the tape.

10. A method for sealing an end with an adhesive tape, characterized in that: It is necessary to use the tape wrapping machine for end sealing of any one of claims 1-5, 7, and 9. There are two tape wrapping machines for end sealing, which are respectively located on both sides of the axial direction of the packaging tube to be end sealed. When in use, the tape wrapping machines for end sealing on both sides respectively wrap the ends of the packaging bags at their respective ends.

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