Counting packer and belt feeding method thereof

Abstract

According to the counting packing machine and the belt feeding method thereof, the length of an actually-used belt can be calculated in the mode that a belt pre-feeding calculating unit 21 is arranged on a belt pre-feeding mechanism 2 and a belt feeding and withdrawing counting unit 31 is arranged on a belt feeding and withdrawing mechanism 3, and the belt needing to be supplemented can be pre-fed according to the actually-used belt. A large number of belts do not need to be stored in the belt bin, an additional detection mechanism does not need to be arranged below the belt bin, and the defects in the prior art can be overcome. The counting packing machine comprises a packing machine body 1, a belt pre-feeding mechanism 2, a belt feeding and withdrawing mechanism 3 and a control mechanism are further arranged on the packing machine body 1, a belt is fed to a belt bin 11 of the packing machine body 1 through the belt pre-feeding mechanism 2, and the belt feeding and withdrawing mechanism 3 takes the belt from the belt bin 11; a pre-feeding belt calculation unit 21 is arranged on the pre-feeding belt mechanism 2; and a belt feeding and withdrawing counting unit 31 is arranged on the belt feeding and withdrawing mechanism 3.

Description

Technical Field

[0001] The present invention relates to the technical field of packaging equipment, and in particular to a counting packaging machine and a belt feeding method thereof. Background Art

[0002] The baler, also known as a strapping machine, a strapping machine or a tying machine, uses strapping tape to tie products or packages, then tightens and combines the two ends by hot-melting and gluing them together. The function of the baler is to reinforce the packaged items so that the items will not fall apart during transportation or storage due to loose strapping.

[0003] Before the baler is baled, the pre-feed belt assembly will deliver the belt into the belt bin in advance, so that the belt can be directly taken from the belt bin during baling. In the prior art, the pre-feed belt assembly does not measure the length of the belt when delivering the belt, which will result in a lot of belts stored in the belt bin. Generally, a mechanism for detecting the weight of the belt is set below the belt bin to make a rough estimate, so as to prevent the belt from filling the belt bin. For example, a baler pre-feed belt control device with patent number 201120544603.X has a control device set below the belt bin, which can timely sense the swing state of the balance lever, output a signal, and make the driving motor of the pre-feed belt device work accordingly, so that the pre-feed belt device works or stops working accordingly, so that the strapping belt stored in the belt storage bin is controlled within a reasonable range. However, in the method of setting a detection mechanism below the belt bin, on the one hand, since the length of the belt cannot be calculated, the length of the belt in the belt bin is not clear, so the belt bin is generally set to be relatively large, and a large number of belts stacked in the belt bin may cause the belt to be out of order; on the other hand, additional space is required to set the detection mechanism.

[0004] The prior art has the above-mentioned technical defects, which has become a major technical problem that needs to be solved urgently by those skilled in the art. Summary of the invention

[0005] The present invention discloses a counting baler and a belt feeding method thereof. By arranging a pre-belt feeding calculation unit 21 on a pre-belt feeding mechanism 2 and a feed-return belt counting unit 31 on a feed-return belt mechanism 3, the length of the belt actually used can be calculated, and the belt that needs to be replenished can be pre-fed according to the belt actually used, without the need to store a large amount of belt in a belt bin and without the need to arrange an additional detection mechanism under the belt bin, thereby solving the defects of the prior art.

[0006] The counting baler provided by the present invention comprises a baler body 1, on which a pre-belt feeding mechanism 2, a belt feeding and retracting mechanism 3 and a control mechanism are further arranged, wherein the belt is fed to a belt bin 11 of the baler body 1 by the pre-belt feeding mechanism 2, and the belt feeding and retracting mechanism 3 takes the belt from the belt bin 11;

[0007] The pre-feeding belt mechanism 2 is provided with a pre-feeding belt calculation unit 21, wherein the pre-feeding belt calculation unit 21 is used to calculate the length of the belt delivered to the belt bin 11;

[0008] The belt feeding and retracting mechanism 3 is provided with a belt feeding and retracting counting unit 31, wherein the belt feeding and retracting counting unit 31 is used to calculate the length of the belt actually used;

[0009] The control mechanism controls the pre-tape feeding mechanism 2 to feed the tape according to the calculation results of the pre-tape feeding calculation unit 21 and the feed-return tape counting unit 31.

[0010] Preferably,

[0011] The pre-feeding belt mechanism 2 includes a driving wheel unit 22, a driven wheel unit 23 and a tensioning unit 24, wherein the driving wheel 221 of the driving wheel unit 22 and the driven wheel 231 of the driven wheel unit 23 are used to convey the belt;

[0012] The pre-feed belt calculation unit 21 cooperates with the driving wheel 221 or the driven wheel 231 to calculate the length of the belt delivered to the belt bin 11;

[0013] The tensioning unit 24 tensions the driving wheel 221 and the driven wheel 231 in a direction toward each other.

[0014] Preferably,

[0015] The driven wheel unit 23 includes a driven wheel 231, a mounting seat 232 and an eccentric shaft 233;

[0016] The driving wheel unit 22 includes a driving wheel 221, a fixing seat 222 and a motor 223;

[0017] The mounting seat 232 is fixedly mounted on the fixing seat 222, the eccentric shaft 233 is mounted on the mounting seat 232, one end of the eccentric shaft 233 is mounted with the driven wheel 231, and the other end is connected to the tensioning unit 24, and the tensioning unit 24 can control the rotation of the eccentric shaft 233;

[0018] The motor 223 is mounted on the fixing seat 222 and is used to drive the driving wheel 221 .

[0019] Preferably,

[0020] A handle 234 is also provided at one end of the eccentric shaft 233;

[0021] On the eccentric shaft 233 , a handle 234 , a driven wheel 231 and a mounting seat 232 are arranged in sequence.

[0022] Preferably,

[0023] The tensioning unit 24 includes an elastic member 241 and a crowbar 242 , wherein two ends of the elastic member 241 are respectively connected to the crowbar 242 and the fixing seat 222 , and two ends of the crowbar 242 are respectively connected to the elastic member 241 and the eccentric shaft 233 .

[0024] Preferably,

[0025] The driven wheel unit 23 includes a driven wheel 231, a rotating shaft and a floating seat;

[0026] The driven wheel 231 is installed on the floating seat through the rotating shaft;

[0027] The driving wheel unit 22 includes a driving wheel 221, a fixing seat 222 and a motor 223;

[0028] The floating seat is installed in a floating manner on the fixed seat 222 , and the tensioning unit 24 tensions the floating seat toward the driving wheel 221 .

[0029] Preferably,

[0030] The pre-feed belt calculation unit 21 includes a first counting sensor 211 and a first counting sensor 212, wherein the first counting sensor 212 is disposed on the driven wheel 231 or is integrally designed with the driven wheel 231;

[0031] The first counting sensor 211 cooperates with the first counting sensing element 212 .

[0032] Preferably,

[0033] The belt feeding and retracting mechanism 3 includes a belt feeding and retracting driving wheel 32, a belt feeding and retracting driven wheel unit 33 and a belt feeding and retracting tensioning unit, wherein the belt feeding and retracting driving wheel 32 and the belt feeding and retracting driven wheel 331 of the belt feeding and retracting driven wheel unit 33 are used to feed the belt to the frame belt path 12 on the baler body 1 and to feed the belt returned when packaging articles to the belt bin 11;

[0034] The belt feeding and retracting counting unit 31 cooperates with the belt feeding and retracting driving wheel 32 or the belt feeding and retracting driven wheel 331 to calculate the length of the belt actually used;

[0035] The feed-return belt tensioning unit tensions the feed-return belt driving wheel 32 and the feed-return belt driven wheel 331 in a direction in which the two are close to each other.

[0036] Preferably,

[0037] The feeding and retracting belt driven wheel unit 33 includes a feeding and retracting belt driven wheel 331, a feeding and retracting belt mounting seat 332 and a feeding and retracting belt eccentric shaft 333;

[0038] The feeding and retracting belt driving wheel 32 is mounted on the feeding and retracting belt mounting seat 332 through a rotating shaft;

[0039] The eccentric shaft 333 of the retractable belt is installed on the retractable belt mounting seat 332. One end of the eccentric shaft 333 of the retractable belt is installed with the retractable belt driven wheel 331, and the other end is connected to the retractable belt tensioning unit, and the retractable belt tensioning unit can control the rotation of the eccentric shaft 333 of the retractable belt.

[0040] Preferably,

[0041] The feeding and retracting belt counting unit 31 comprises a second counting sensor 311 and a second counting sensor 312, wherein the second counting sensor 312 is disposed on the feeding and retracting belt driven wheel 331 or is integrally designed with the feeding and retracting belt driven wheel 231;

[0042] The second counting sensor 311 cooperates with the second counting sensing element 312 .

[0043] The present invention also discloses a belt feeding method of a counting packing machine, comprising:

[0044] S1. According to the belt length required by the frame belt track, a preset belt length value required by the baler is estimated, and the preset length value must be greater than the belt length required by the frame belt track, and the pre-feeding mechanism is started to pre-feed the belt according to the preset length value;

[0045] S2, no earlier than the start time of the pre-feeding mechanism, the belt is delivered to the frame belt path through the belt delivery and retraction mechanism until it is in place, otherwise, step S6 is executed;

[0046] S3, when the belt delivery and retraction mechanism delivers the belt to the frame belt path, the length of the belt delivered by the belt delivery and retraction mechanism is recorded;

[0047] S4. When the items to be packaged are packaged, the excess tape is returned to the tape bin by the tape delivery and return mechanism, and the length of the tape returned to the tape bin is recorded;

[0048] S5, calculating the actually consumed tape length and sending it to the control mechanism, and the control mechanism controls the pre-feeding mechanism to replenish the actually consumed tape into the tape bin;

[0049] S6. Start exception handling.

[0050] Preferably,

[0051] The step S2 comprises:

[0052] If the pre-feeding mechanism completes the pre-feeding according to the preset length value, the belt is transported to the frame belt path through the belt feeding and retracting mechanism until it is in place, otherwise step S6 is executed.

[0053] The counting baler of the present invention comprises a baler body 1, on which a pre-belt feeding mechanism 2, a belt feeding and retracting mechanism 3 and a control mechanism are also arranged, wherein the belt is fed to a belt bin 11 of the baler body 1 by the pre-belt feeding mechanism 2, and the belt feeding and retracting mechanism 3 takes the belt from the belt bin 11; the pre-belt feeding mechanism 2 is provided with a pre-belt feeding calculation unit 21, wherein the pre-belt feeding calculation unit 21 is used to calculate the length of the belt fed to the belt bin 11; the belt feeding and retracting mechanism 3 is provided with a belt feeding and retracting counting unit 31, wherein the belt feeding and retracting counting unit 31 is used to calculate the length of the belt actually used; the control mechanism controls the pre-belt feeding mechanism 2 to feed the belt according to the calculation results of the pre-belt feeding calculation unit 21 and the belt feeding and retracting counting unit 31. By providing a pre-feed belt calculation unit 21 on the pre-feed belt mechanism 2 and a feed-return belt counting unit 31 on the feed-return belt mechanism 3, the counting baler and belt feeding method of the present invention can calculate the length of the belt actually used, and pre-feed the belt that needs to be replenished according to the belt actually used, without the need to store a large amount of belt in the belt bin and without the need to provide an additional detection mechanism under the belt bin, thereby solving the defects of the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0054] Figure 1 A three-dimensional diagram of a counting and packing machine according to an embodiment of the present invention;

[0055] Figure 2 Another stereoscopic diagram of the counting and packing machine according to an embodiment of the present invention;

[0056] Figure 3 It is a front view of a counting and packing machine according to an embodiment of the present invention;

[0057] Figure 4 A schematic structural diagram of a pre-feeding belt mechanism 2 in a counting baler according to an embodiment of the present invention;

[0058] Figure 5 Another structural schematic diagram of the pre-feeding belt mechanism 2 in the counting baler according to an embodiment of the present invention;

[0059] Figure 6 It is a structural schematic diagram of the belt feeding and retracting mechanism 3 in the counting baler according to an embodiment of the present invention;

[0060] Figure 7 The present invention is a flowchart of a belt feeding method of a counting baler according to an embodiment of the present invention. DETAILED DESCRIPTION

[0061] The present invention discloses a counting baler and a belt feeding method thereof. By arranging a pre-belt feeding calculation unit 21 on a pre-belt feeding mechanism 2 and a feed-return belt counting unit 31 on a feed-return belt mechanism 3, the length of the belt actually used can be calculated, and the belt that needs to be replenished can be pre-fed according to the belt actually used, without the need to store a large amount of belt in a belt bin and without the need to arrange an additional detection mechanism under the belt bin, thereby solving the defects of the prior art.

[0062] The following is a clear and detailed description of the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Please refer to Figures 1 to 6 The counting baler provided by the present invention comprises a baler body 1, on which a pre-feeding belt mechanism 2, a feeding and retracting belt mechanism 3 and a control mechanism are further arranged, wherein the belt is fed to a belt bin 11 of the baler body 1 by the pre-feeding belt mechanism 2, and the feeding and retracting belt mechanism 3 takes the belt from the belt bin 11;

[0063] The pre-feeding belt mechanism 2 is provided with a pre-feeding belt calculation unit 21, wherein the pre-feeding belt calculation unit 21 is used to calculate the length of the belt delivered to the belt bin 11;

[0064] The belt feeding and retracting mechanism 3 is provided with a belt feeding and retracting counting unit 31, wherein the belt feeding and retracting counting unit 31 is used to calculate the length of the belt actually used;

[0065] The control mechanism controls the pre-tape feeding mechanism 2 to feed the tape according to the calculation results of the pre-tape feeding calculation unit 21 and the feed-return tape counting unit 31.

[0066] In an embodiment of the present invention, a pre-feed belt calculation unit 21 is provided on the pre-feed belt mechanism 2 and a feed-return belt counting unit 31 is provided on the feed-return belt mechanism 3. Therefore, on the one hand, the length of the belt that needs to be supplemented can be accurately calculated by calculating the belt length of the pre-feed belt and the belt length actually used by the baler. On the other hand, there is no need to provide an additional counterweight mechanism or other sensing mechanism under the belt bin 11, which can simplify the structure of the belt bin. When in use, the length of the belt sent to the frame belt path by the feed-return belt counting unit 31 and the length of the belt returned are calculated. Then, the length of the belt actually used by the baler can be calculated, and the belt of the corresponding length can be supplemented according to the belt length required by the frame belt path. That is, there is no need to pre-store a lot of belts in the belt bin 11. It can be supplemented according to the actual situation. The shape of the belt in the belt bin 11 will be smoother, and it is not easy to get the belt entangled. Moreover, since there is no need to pre-store too much belt, the volume of the belt bin can be reduced, and the overall space utilization rate of the baler is improved. The tape reel 001 can even be placed in the baler according to needs, for example, in the position vacated by reducing the volume of the tape bin.

[0067] In actual use, in the initial state, there is no tape in the frame belt path and the tape bin 11, and the pre-feeding tape mechanism 2 can first deliver a tape of not less than the tape length required by the frame belt path to the tape bin 11 according to the tape length required by the frame belt path. In the non-initial state, the control mechanism can obtain the tape length actually consumed by the baler according to the tape feeding and returning mechanism 3, and then directly start the pre-feeding tape mechanism 2 to pre-feed the tape required to be replenished to the tape bin 11. The process of delivering the tape to the frame belt path by the tape feeding and returning mechanism 3 can be carried out after the items to be packaged are placed in the packaging position, or when the items to be packaged are placed Before being placed in the packaging position, no limitation is made here; for example, the length of the belt is supplemented to the length of the belt in the belt bin 11 is greater than the length of the belt required by the frame belt path, which can be specifically 5% to 15% of the length of the belt required by the frame belt path; after completing the pre-feeding of the belt, the belt feeding and returning mechanism 3 is started to transport the belt to the frame belt path until it is in place, and the length of the fed belt needs to be calculated. When packaging the items to be packaged, the belt feeding and returning mechanism 3 needs to withdraw the belt to tighten the belt, and the length of the belt returned to the belt bin 11 can be calculated. At this time, the actual consumed belt length can be known, and the belt bin 11 can be replenished with belt in time.

[0068] Preferably,

[0069] The pre-feeding belt mechanism 2 includes a driving wheel unit 22, a driven wheel unit 23 and a tensioning unit 24, wherein the driving wheel 221 of the driving wheel unit 22 and the driven wheel 231 of the driven wheel unit 23 are used to convey the belt;

[0070] The pre-feed belt calculation unit 21 cooperates with the driving wheel 221 or the driven wheel 231 to calculate the length of the belt delivered to the belt bin 11;

[0071] The tensioning unit 24 tensions the driving wheel 221 and the driven wheel 231 in a direction toward each other.

[0072] It should be noted that the tensioning unit 24 tensions the driving wheel 221 and the driven wheel 231 in the direction in which the two are close to each other. Generally speaking, the driving wheel 221 is fixed and the driven wheel 231 is in a floating state. Therefore, generally speaking, the tensioning unit 24 tensions the driven wheel 231 in the direction of the driving wheel 221 to clamp the belt and ensure smooth belt feeding. When pulling the belt, the driving wheel 221 starts to drive the belt to move, and the driven wheel 231 rotates at the same time. In this embodiment, the pre-feed belt calculation unit 21 can cooperate with the driven wheel 231. When the driven wheel rotates, the pre-feed belt calculation unit 21 calculates the number of rotations of the driven wheel 231, and the length of the pre-feed belt can be calculated in combination with the outer circumference of the driven wheel 231. It must be pointed out that as a preferred solution, in this embodiment, the pre-feed belt calculation unit 21 cooperates with the driven wheel 231, and the tensioning unit 24 tensions the driven wheel 231 toward the driving wheel 221, which is not limited here.

[0073] Preferably,

[0074] The driven wheel unit 23 includes a driven wheel 231, a mounting seat 232 and an eccentric shaft 233;

[0075] The driving wheel unit 22 includes a driving wheel 221, a fixing seat 222 and a motor 223;

[0076] The mounting seat 232 is fixedly mounted on the fixing seat 222, the eccentric shaft 233 is mounted on the mounting seat 232, one end of the eccentric shaft 233 is mounted with the driven wheel 231, and the other end is connected to the tensioning unit 24, and the tensioning unit 24 can control the rotation of the eccentric shaft 233;

[0077] The motor 223 is mounted on the fixing seat 222 and is used to drive the driving wheel 221 .

[0078] In the embodiment of the present invention, it should be particularly pointed out that the fixing seat 222 and the mounting seat 232 can be an integrally formed structure, or two structures can be combined through a connecting piece, which is not limited here. In this embodiment, the fixing seat 222 and the mounting seat 232 are an integrally formed design.

[0079] Preferably,

[0080] A handle 234 is also provided at one end of the eccentric shaft 233;

[0081] On the eccentric shaft 233 , a handle 234 , a driven wheel 231 and a mounting seat 232 are arranged in sequence.

[0082] Preferably,

[0083] The tensioning unit 24 includes an elastic member 241 and a crowbar 242 , wherein two ends of the elastic member 241 are respectively connected to the crowbar 242 and the fixing seat 222 , and two ends of the crowbar 242 are respectively connected to the elastic member 241 and the eccentric shaft 233 .

[0084] Preferably,

[0085] The driven wheel unit 23 includes a driven wheel 231, a rotating shaft and a floating seat;

[0086] The driven wheel 231 is installed on the floating seat through the rotating shaft;

[0087] The driving wheel unit 22 includes a driving wheel 221, a fixing seat 222 and a motor 223;

[0088] The floating seat is installed in a floating manner on the fixed seat 222 , and the tensioning unit 24 tensions the floating seat toward the driving wheel 221 .

[0089] In the embodiment of the present invention, the driven wheel unit 23 has two configuration modes. One mode includes a driven wheel 231, a mounting seat 232 and an eccentric shaft 233. The eccentric shaft 233 rotates in different directions, and the gap between the driven wheel 231 and the driving wheel 221 is different. It is defined that when the eccentric shaft 233 turns to direction A, the gap between the driven wheel 231 and the driving wheel 221 is reduced, and the elastic member 241 rotates the eccentric shaft 233 in direction A through the crowbar 242, that is, through the tension of the elastic member, the elastic pressure is firmly applied to the belt, which can ensure that the belt is transported more smoothly without slipping; the other mode includes a driven wheel 231, a rotating shaft and a floating seat, and the tensioning unit 24 tightens the floating seat toward the driving wheel 221, which also ensures that the belt is transported more smoothly without slipping. A handle 234 can also be set on the eccentric shaft 233. When the belt is initially threaded, the driven wheel 231 can be manually lifted by the handle 234 to facilitate threading.

[0090] Preferably,

[0091] The pre-feed belt calculation unit 21 includes a first counting sensor 211 and a first counting sensor 212, wherein the first counting sensor 212 is disposed on the driven wheel 231 or is integrally designed with the driven wheel 231;

[0092] The first counting sensor 211 cooperates with the first counting sensing element 212 .

[0093] It should be noted that the pre-feed belt calculation unit 21 includes a first counting sensor 211 and a first counting sensor 212. The first counting sensor 212 is installed on the driven wheel 231. Specifically, the first counting sensor 212 is installed on a plurality of convex teeth arranged on the outer circle of the driven wheel 231, and the number of the first counting sensors 212 can be consistent with the number of convex teeth. When the driven wheel 231 rotates, each time the first counting sensor 212 senses the first counting sensor 211, the number of rotations and the position of the driven wheel 231 can be known, thereby calculating the length of the pre-feed belt.

[0094] Preferably,

[0095] The belt feeding and retracting mechanism 3 includes a belt feeding and retracting driving wheel 32, a belt feeding and retracting driven wheel unit 33 and a belt feeding and retracting tensioning unit, wherein the belt feeding and retracting driving wheel 32 and the belt feeding and retracting driven wheel 331 of the belt feeding and retracting driven wheel unit 33 are used to feed the belt to the frame belt path 12 on the baler body 1 and to feed the belt returned when packaging articles to the belt bin 11;

[0096] The belt feeding and retracting counting unit 31 cooperates with the belt feeding and retracting driving wheel 32 or the belt feeding and retracting driven wheel 331 to calculate the length of the belt actually used;

[0097] The feed-return belt tensioning unit tensions the feed-return belt driving wheel 32 and the feed-return belt driven wheel 331 in a direction in which the two are close to each other.

[0098] Preferably,

[0099] The feeding and retracting belt driven wheel unit 33 includes a feeding and retracting belt driven wheel 331, a feeding and retracting belt mounting seat 332 and a feeding and retracting belt eccentric shaft 333;

[0100] The feeding and retracting belt driving wheel 32 is mounted on the feeding and retracting belt mounting seat 332 through a rotating shaft;

[0101] The eccentric shaft 333 of the retractable belt is installed on the retractable belt mounting seat 332. One end of the eccentric shaft 333 of the retractable belt is installed with the retractable belt driven wheel 331, and the other end is connected to the retractable belt tensioning unit, and the retractable belt tensioning unit can control the rotation of the eccentric shaft 333 of the retractable belt.

[0102] Preferably,

[0103] The feeding and retracting belt counting unit 31 comprises a second counting sensor 311 and a second counting sensor 312, wherein the second counting sensor 312 is disposed on the feeding and retracting belt driven wheel 331 or is integrally designed with the feeding and retracting belt driven wheel 231;

[0104] The second counting sensor 311 cooperates with the second counting sensing element 312 .

[0105] It should be noted that, similar to the structural arrangement of the driving wheel 221 and the driven wheel 231 in the pre-feeding mechanism 2, the feeding and retracting mechanism 3 includes a feeding and retracting driving wheel 32, a feeding and retracting driven wheel unit 33 and a feeding and retracting tensioning unit. Similarly, generally speaking, the feeding and retracting driving wheel 32 is also fixedly arranged, so the feeding and retracting tensioning unit tightens the feeding and retracting driven wheel 331 toward the feeding and retracting driving wheel 32. The feeding and retracting counting unit 31 is generally preferably coordinated with the feeding and retracting driven wheel 331, and the second counting sensor 312 is arranged on the feeding and retracting driven wheel 331, and the second counting sensor 311 cooperates with the second counting sensor 312 to calculate the actual used belt length.

[0106] In addition, it should be pointed out that the present invention breaks through industry barriers and traditions, and can accurately calculate the actual consumption of tapes and replenish them in a timely manner without the need to pre-store a large amount of tape in the tape bin 11. This can greatly reduce the volume required for the tape bin 11, which is conducive to the miniaturized design of the equipment and eliminates the need for additional structures under the tape bin 11, such as a counterweight mechanism. The space utilization rate of the entire equipment is improved, and some users who need to put the tape reel into the baler also have enough space to operate.

[0107] The counting baler of the present invention comprises a baler body 1, on which a pre-belt feeding mechanism 2, a belt feeding and retracting mechanism 3 and a control mechanism are also arranged, wherein the belt is fed to a belt bin 11 of the baler body 1 by the pre-belt feeding mechanism 2, and the belt feeding and retracting mechanism 3 takes the belt from the belt bin 11; the pre-belt feeding mechanism 2 is provided with a pre-belt feeding calculation unit 21, wherein the pre-belt feeding calculation unit 21 is used to calculate the length of the belt fed to the belt bin 11; the belt feeding and retracting mechanism 3 is provided with a belt feeding and retracting counting unit 31, wherein the belt feeding and retracting counting unit 31 is used to calculate the length of the belt actually used; the control mechanism controls the pre-belt feeding mechanism 2 to feed the belt according to the calculation results of the pre-belt feeding calculation unit 21 and the belt feeding and retracting counting unit 31. By providing a pre-feed belt calculation unit 21 on the pre-feed belt mechanism 2 and a feed-return belt counting unit 31 on the feed-return belt mechanism 3, the counting baler of the present invention can calculate the length of the belt actually used, and pre-deliver the belt that needs to be replenished according to the belt actually used, without the need to store a large amount of belt in the belt bin and without the need to provide an additional detection mechanism under the belt bin, thereby solving the defects of the prior art.

[0108] The above describes the embodiment of the counting baler of the present invention, in which the pre-feeding mechanism 2 and the retracting mechanism 3 are mainly described. The following describes the belt feeding method of the counting baler of the present invention. Figure 7 The belt feeding method of the counting baler of the present invention comprises:

[0109] S1. According to the belt length required by the frame belt track, a preset belt length value required by the baler is estimated, and the preset length value must be greater than the belt length required by the frame belt track, and the pre-feeding mechanism is started to pre-feed the belt according to the preset length value;

[0110] As described in the aforementioned counting baler embodiment, how to calculate the length of the belt in the belt bin is introduced, which will not be repeated here; the preset length value of the belt required for the baler is estimated based on the belt length required for the frame belt track. For example, it takes 8 meters to wrap around the frame belt track. The preset length value of the belt required for the baler can be slightly larger than 8 meters and can be set to 9 to 12 meters. At this time, the pre-feeding mechanism can be started to pre-feed the belt according to the preset length value.

[0111] It should be noted that the counting baler has an initial state and a subsequent state. In the initial state, there is no tape in the tape bin, so the pre-feeding mechanism can directly pre-feed tape of a preset length. In the subsequent state, it can be supplemented according to the actual consumed tape length.

[0112] S2, no earlier than the start time of the pre-feeding mechanism, the belt is delivered to the frame belt path through the belt delivery and retraction mechanism until it is in place, otherwise, step S6 is executed;

[0113] It should be noted that after the belt is installed on the counting baler, the pre-feed belt mechanism can be started to pre-feed the belt, and then the belt can be conveyed to the frame belt path through the feed-return belt mechanism no earlier than the start time of the pre-feed belt mechanism. The above-mentioned start time no earlier than the pre-feed belt mechanism may include but is not limited to the following situations: a. The pre-feed belt mechanism and the feed-return belt mechanism are started at the same time; b. The feed-return belt mechanism is started a certain time after the pre-feed belt mechanism is started, for example, five seconds later, to avoid the belt being too tight; c. After the pre-feed belt mechanism completes the pre-feeding of the belt according to the preset length value, the feed-return belt mechanism is started to convey the belt to the frame belt path.

[0114] Among them, situation c can be used as a better solution, that is, step S2 can be specifically as follows: if the pre-feeding mechanism completes the pre-feeding according to the preset length value, the belt is conveyed to the frame belt path through the belt feeding and returning mechanism until it is in place, otherwise step S6 is executed; in this case, if the pre-feeding fails, a first setting requirement can be set. If the pre-feeding mechanism completes the pre-feeding within the first setting requirement, the pre-feeding is considered successful, and the length of the pre-feeding is recorded, and then the belt feeding and returning mechanism can be notified; after receiving the notification, the belt feeding mechanism can convey the belt to the frame belt path so as to package the items to be packaged. The above-mentioned first setting requirement can be specifically as follows: if the pre-feeding mechanism feeds the belt three times in a row and fails to achieve successful pre-feeding, it is determined that the pre-feeding fails, and step S6 is executed at this time.

[0115] S3, when the belt delivery and retraction mechanism delivers the belt to the frame belt path, the length of the belt delivered by the belt delivery and retraction mechanism is recorded;

[0116] When the belt feeding and retracting mechanism conveys the belt to the frame belt path, it is necessary to record the length of the belt conveyed by the belt feeding and retracting mechanism in order to know the actual length of the belt consumed by the counting baler.

[0117] In addition, the belt feeding mechanism may also feed or fail. If the belt feeding mechanism completes the belt feeding within the second setting requirement, it can be considered that the belt feeding is successful. After the belt feeding is completed, the length of the belt fed by the belt feeding mechanism can be recorded. The above second setting requirement can be specifically: if the belt feeding mechanism does not complete the belt feeding within the set time, it is judged as a failure.

[0118] S4. When the items to be packaged are packaged, the excess tape is returned to the tape bin by the tape delivery and return mechanism, and the length of the tape returned to the tape bin is recorded;

[0119] When the items to be packaged are packaged, the belt-returning mechanism needs to be used to retract the belt to tighten the belt and tie the items to be packaged tightly. At this time, the length of the belt returned to the belt bin needs to be recorded.

[0120] S5, calculating the actually consumed tape length and sending it to the control mechanism, and the control mechanism controls the pre-feeding mechanism to replenish the actually consumed tape into the tape bin;

[0121] Through the above steps, the actual consumed tape length can be calculated and sent to the control mechanism. After the control mechanism obtains the actual consumed tape length, it can choose the appropriate time to control the pre-feeding mechanism to replenish the actually consumed tape into the tape bin.

[0122] S6. Start exception handling.

[0123] In the embodiment of the present invention, the abnormality handling may specifically be starting the main motor to run to the error handling position and cutting off the waste tape at the error position, or may be notifying manual intervention, which is not limited here.

[0124] By providing a pre-feed belt calculation unit 21 on the pre-feed belt mechanism 2 and a feed-return belt counting unit 31 on the feed-return belt mechanism 3, the belt feeding method of the counting baler of the present invention can calculate the length of the belt actually used, and pre-feed the belt that needs to be replenished according to the belt actually used, without the need to store a large amount of belt in the belt bin, and without the need to provide an additional detection mechanism under the belt bin, which can solve the defects of the prior art.

[0125] The counting baler and the belt feeding method thereof provided by the present invention are introduced in detail above. For a person skilled in the art, according to the idea of ​​the embodiments of the present invention, there may be changes in the specific implementation mode and the scope of application. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A counting baler, comprising a baler body (1), characterized in that: The baler body (1) is also provided with a pre-belt delivery mechanism (2), a belt delivery and retraction mechanism (3) and a control mechanism, wherein the belt is delivered to a belt bin (11) of the baler body (1) by the pre-belt delivery mechanism (2), and the belt delivery and retraction mechanism (3) takes the belt from the belt bin (11); The pre-feeding belt mechanism (2) is provided with a pre-feeding belt calculation unit (21), wherein the pre-feeding belt calculation unit (21) is used to calculate the length of the belt delivered to the belt bin (11); The belt feeding and retracting mechanism (3) is provided with a belt feeding and retracting counting unit (31), wherein the belt feeding and retracting counting unit (31) is used to calculate the length of the belt actually used; The control mechanism controls the pre-feeding mechanism (2) to feed the tape according to the calculation results of the pre-feeding tape calculation unit (21) and the feeding and retracting tape counting unit (31).

2. The counting baler according to claim 1, characterized in that: The pre-belt feeding mechanism (2) comprises a driving wheel unit (22), a driven wheel unit (23) and a tensioning unit (24), wherein the driving wheel (221) of the driving wheel unit (22) and the driven wheel (231) of the driven wheel unit (23) are used for conveying the belt; The pre-feed belt calculation unit (21) cooperates with the driving wheel (221) or the driven wheel (231) to calculate the length of the belt delivered to the belt bin (11); The tensioning unit (24) tensions the driving wheel (221) and the driven wheel (231) in a direction in which the two wheels are brought closer to each other.

3. The counting baler according to claim 2, characterized in that: The driven wheel unit (23) comprises a driven wheel (231), a mounting seat (232) and an eccentric shaft (233); The driving wheel unit (22) comprises a driving wheel (221), a fixing seat (222) and a motor (223); The mounting seat (232) is fixedly mounted on the fixing seat (222), the eccentric shaft (233) is mounted on the mounting seat (232), one end of the eccentric shaft (233) is mounted with a driven wheel (231), and the other end is connected to the tensioning unit (24), and the tensioning unit (24) can control the rotation of the eccentric shaft (233); The motor (223) is mounted on the fixing seat (222) and is used to drive the driving wheel (221); The mounting seat (232) and the fixing seat (222) are of an integral design or a separate design.

4. The counting baler according to claim 3, characterized in that: A handle (234) is also provided at one end of the eccentric shaft (233); A handle (234), a driven wheel (231) and a mounting seat (232) are arranged in sequence on the eccentric shaft (233).

5. The counting baler according to claim 3, characterized in that: The tensioning unit (24) comprises an elastic member (241) and a crowbar (242), wherein two ends of the elastic member (241) are respectively connected to the crowbar (242) and the fixing seat (222), and two ends of the crowbar (242) are respectively connected to the elastic member (241) and the eccentric shaft (233).

6. The counting and packing machine according to claim 2, characterized in that: The driven wheel unit (23) comprises a driven wheel (231), a rotating shaft and a floating seat; The driven wheel (231) is installed on the floating seat via the rotating shaft; The driving wheel unit (22) comprises a driving wheel (221), a fixing seat (222) and a motor (223); The floating seat is installed in a floating manner on the fixed seat (222), and the tensioning unit (24) tensions the floating seat in the direction of the driving wheel (221).

7. The counting baler according to any one of claims 2 to 6, characterized in that: The pre-feed belt calculation unit (21) comprises a first counting sensor (211) and a first counting sensor (212), wherein the first counting sensor (212) is arranged on the driven wheel (231) or is designed as an integral unit with the driven wheel (231); The first counting sensor (211) cooperates with the first counting sensing element (212).

8. The counting baler according to claim 1, characterized in that: The belt feeding and retracting mechanism (3) comprises a belt feeding and retracting driving wheel (32), a belt feeding and retracting driven wheel unit (33) and a belt feeding and retracting tensioning unit, wherein the belt feeding and retracting driving wheel (32) and the belt feeding and retracting driven wheel (331) of the belt feeding and retracting driven wheel unit (33) are used to feed the belt to the frame belt path (12) on the baling machine body (1) and to feed the belt returned when packaging articles to the belt bin (11); The belt feeding and retracting counting unit (31) cooperates with the belt feeding and retracting driving wheel (32) or the belt feeding and retracting driven wheel (331) to calculate the length of the belt actually used; The feed-return belt tensioning unit tensions the feed-return belt driving wheel (32) and the feed-return belt driven wheel (331) in a direction in which the two are close to each other.

9. The counting baler according to claim 8, characterized in that: The feeding and retracting belt driven wheel unit (33) comprises a feeding and retracting belt driven wheel (331), a feeding and retracting belt mounting seat (332) and a feeding and retracting belt eccentric shaft (333); The feeding and retracting belt driving wheel (32) is mounted on the feeding and retracting belt mounting seat (332) via a rotating shaft; The eccentric shaft (333) of the retractable belt is installed on the retractable belt mounting seat (332), one end of the eccentric shaft (333) of the retractable belt is installed with the retractable belt driven wheel (331), and the other end is connected to the retractable belt tensioning unit, and the retractable belt tensioning unit can control the rotation of the eccentric shaft (333) of the retractable belt.

10. The counting baler according to claim 8 or 9, characterized in that: The feeding and retracting belt counting unit (31) comprises a second counting sensor (311) and a second counting sensor (312), wherein the second counting sensor (312) is arranged on the feeding and retracting belt driven wheel (331) or is designed as an integral unit with the feeding and retracting belt driven wheel (231); The second counting sensor (311) cooperates with the second counting sensing element (312).

11. A belt feeding method for a counting baler, characterized in that: include: S1. According to the belt length required by the frame belt track, a preset belt length value required by the baler is estimated, and the preset length value must be greater than the belt length required by the frame belt track, and the pre-feeding mechanism is started to pre-feed the belt according to the preset length value; S2, no earlier than the start time of the pre-feeding mechanism, the belt is delivered to the frame belt path through the belt delivery and retraction mechanism until it is in place, otherwise, step S6 is executed; S3, when the belt delivery and retraction mechanism delivers the belt to the frame belt path, the length of the belt delivered by the belt delivery and retraction mechanism is recorded; S4. When the items to be packaged are packaged, the excess tape is returned to the tape bin by the tape delivery and return mechanism, and the length of the tape returned to the tape bin is recorded; S5, calculating the actually consumed tape length and sending it to the control mechanism, and the control mechanism controls the pre-feeding mechanism to replenish the actually consumed tape into the tape bin; S6. Start exception handling.

12. The belt feeding method of a counting baler according to claim 11, characterized in that: The step S2 comprises: If the pre-feeding mechanism completes the pre-feeding according to the preset length value, the belt is transported to the frame belt path through the belt feeding and retracting mechanism until it is in place, otherwise step S6 is executed.

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