Feeding device of pillow type packaging machine and feeding method of feeding device

Abstract

The feeding device of the pillow type packaging machine comprises a shell, two first driving rollers are oppositely arranged at one end in the shell, the two ends of each first driving roller rotationally penetrate through the shell wall of the shell, and a first driver is fixedly arranged on the outer wall of the shell; the two driving ends of the first driver are fixedly connected with the two first driving rollers correspondingly. When the improved feeding device of the pillow type packaging machine is used, the distance between the two limiting plates is adjusted through the position adjusting mechanism, adjustment of the position adjusting mechanism can be synchronously carried out, then the device can adapt to conveying and feeding operators of objects with different widths, adjustment of the separating mechanism is matched, and the feeding efficiency is improved. The feeding device can adapt to conveying and feeding operation of objects with different lengths, finally, one feeding device can adapt to conveying and feeding operation of various objects, and the application range of the pillow type packaging machine is widened.

Description

Technical Field

[0001] The invention relates to the technical field of pillow type packaging machines, and in particular to a feeding device and a feeding method of a pillow type packaging machine. Background Art

[0002] Pillow packaging machine is a common automatic packaging machine, which is widely used in product packaging in food, medicine, daily necessities and other industries. Pillow packaging machine is also called horizontal packaging machine or horizontal packaging machine. Its working principle is to form a cylinder through the roll film, and then use the transverse sealer to seal it horizontally, and at the same time cut it into packaging bags of a certain length, and then use the longitudinal sealer to seal it longitudinally, thus completing the entire packaging process. The pillow packaging machine can perform packaging operations continuously, at high speed and automatically, and has the advantages of high production efficiency, good packaging quality, material saving and cost reduction.

[0003] The existing feeding mechanism of the pillow packaging machine generally feeds and transports the items through a belt conveyor, and constrains and limits the items through a number of limit plates arranged in the middle of the belt conveyor to ensure the spacing between the items, the volume of the conveyed items is fixed, and the spacing distance between the materials is fixed, so that a set of feeding mechanism can only perform the feeding and conveying operation of one type of item, thereby increasing the scope of application of the pillow packaging machine. Summary of the invention

[0004] The object of the present invention is to provide a feeding device and a feeding method for a pillow packaging machine, so as to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: a feeding device of a pillow packaging machine, comprising a shell, two first driving rollers are oppositely arranged at one end of the shell, and both ends of each first driving roller rotate and penetrate the shell wall of the shell, a first driver is fixedly installed on the outer wall of the shell, and two driving ends of the first driver are respectively fixedly connected to the two first driving rollers, and a feeding assembly is arranged on the two first driving rollers; The feeding assembly includes a first conveyor belt, which is sleeved on the outer circumference of two first driving rollers, and the outer circumferential wall of each first driving roller is interference fit with the inner wall of the first conveyor belt, two limit plates are relatively slidably installed on the top side of the first conveyor belt, and adjustment mechanisms are provided on the two limit plates, a partition mechanism is provided on the first conveyor belt, and a positioning mechanism is provided at the other end of the shell.

[0006] Preferably, the positioning mechanism includes two second driving rollers, the two second driving rollers are relatively arranged at the other end of the shell, and both ends of each second driving roller rotate through the shell wall, the outer circumference of the two second driving rollers is sleeved with a second conveyor belt, a second driver is fixedly mounted on the outer wall of the shell, and the two driving ends of the second driver are respectively fixedly connected to the two second driving rollers, two inclined elastic plates are relatively slidably mounted on the second conveyor belt, and one end of the elastic plate is fixedly connected to the corresponding limiting plate, and the other end of the elastic plate contacts with the inner wall of the shell.

[0007] Preferably, the second conveyor belt is loosely matched with the first conveyor belt, two guide plates are relatively arranged between the first conveyor belt and the second conveyor belt, and the top sides of the two guide plates are coplanar with the top sides of the first conveyor belt and the second conveyor belt, and the guide plates are fixedly connected to the inner wall of the outer shell.

[0008] Preferably, the adjustment mechanism comprises a plurality of square rods, the plurality of square rods slide through the two limit plates, and the intervals between two adjacent square rods are equal, and the two ends of the square rods are fixedly connected to the inner wall of the shell.

[0009] Preferably, a plurality of circular grooves are relatively opened on the square rod, and the spacing between two adjacent circular grooves is equal, a circular hole is opened at the position corresponding to the circular hole on the top side of the limit plate, a round rod is slidably installed in the circular hole, and the bottom end of the round rod is hemispherically arranged and inserted into the corresponding circular groove.

[0010] Preferably, a pull rod is provided on the top side of the limiting plate, and the bottom side of the pull rod is fixedly connected to the corresponding round rod.

[0011] Preferably, the separating mechanism comprises a plurality of elastic rods, a storage groove is provided at a middle position on the outer peripheral wall of the first conveyor belt, a soft metal ring is fixedly sleeved in the storage groove, a plurality of threaded holes are provided on the soft metal ring, and the spacing between two adjacent threaded holes is equal, a plurality of fixed blocks with a U-shaped cross-section are provided on the outer peripheral wall of the soft metal ring, and the fixed blocks are threadedly connected to the corresponding inner walls of the threaded holes through threaded shafts, and the bottom ends of the elastic rods are inserted into the grooves of the corresponding fixed blocks and are rotatably connected to the corresponding fixed blocks.

[0012] Preferably, the side of one end of the bottom side of the elastic rod is arranged in an arc shape, and the side of the other end of the bottom side of the elastic rod is arranged in a right angle shape, and a plurality of air storage grooves are provided on the inner bottom wall of the fixed block at positions corresponding to the arc surfaces of the elastic rods, a push rod is slidably installed in the air storage groove, and the top end of the push rod is arranged in a hemispherical shape and contacts with the arc surface of the bottom end of the corresponding elastic rod, a sealing ring is fixedly installed on the outer peripheral wall of the push rod, and the outer peripheral wall of the sealing ring contacts with the inner wall of the corresponding air storage groove.

[0013] Preferably, a pressure sensor is fixedly mounted on the inner bottom wall of the shell at a position corresponding to the elastic rod through a support rod, a hemispherical block is fixedly mounted on the top of the pressure sensor, and an infrared monitoring sensor is fixedly mounted in the gap between the two guide plates.

[0014] A feeding method for a pillow packaging machine, comprising the feeding device for the pillow packaging machine described above, is characterized in that it specifically comprises the following steps: Step 1: First, the operator holds the pull rod to pull the round rod out of the round hole, and then the operator pushes the limit plate to adjust the distance between the two limit plates according to the conveyed objects. After the position of the limit plate is adjusted, the round rod is reinserted into the round groove to lock the position of the limit plate, and the position adjustment between the limit plates is completed; Step 2: The operator holds the elastic rod and screws the threaded shaft out of the threaded hole. The elastic rods on the soft metal ring can be removed by rotating the first conveyor belt. Then, a suitable number of elastic rods are installed on the soft metal according to the conveyed objects, and the distance between two adjacent elastic rods can be adjusted. Step 3: The operator or the robot places the article on the second conveyor belt, and pushes the article toward the guide plate through the second conveyor belt. In the process of the article moving between the two elastic plates, due to the mutual interference between the elastic plates and the article, the article slides on the second conveyor belt and automatically gathers in the middle, so that the articles on the second conveyor belt are pushed onto the first conveyor belt in turn, and finally the articles are pushed into the plastic wrapping paper by the first conveyor belt for packaging; Step 4: During the sliding process of the objects on the guide plate in step 3, the external control host determines the sliding rate of the objects on the guide plate through the infrared monitoring sensor and the rotation rate of the second conveyor belt, and determines whether the left end of the top side of the first conveyor belt is supported by an elastic rod through the pressure change monitored by the pressure sensor. Finally, by pausing the operation of the second conveyor belt or pausing the operation of the second conveyor belt, the objects on the second conveyor belt are successively put into all the intervals between the elastic rods, and due to the mutual interference between the elastic rods and the objects, the spacing between the objects on the first conveyor belt remains stable.

[0015] The present invention has at least the following beneficial effects: 1. When the feeding device of the improved pillow packaging machine is in use, the positioning mechanism automatically adjusts the position of the articles put into the housing by the operator or the manipulator, so that a number of articles are pushed one by one from the middle position of the first conveyor belt onto the first conveyor belt, and at the same time, the separation mechanism synchronously controls the speed of the first conveyor belt and the adjustment mechanism to transport the materials, so that the spacing between the articles on the first conveyor belt is almost equal, and finally, through the pushing of the articles on the first conveyor belt, the articles are pushed one by one into the packaging paper of the pillow packaging machine for packaging processing of the articles; 2. When the feeding device of the improved pillow packaging machine is in use, the spacing between the two limit plates is adjusted by the positioning mechanism, and the positioning mechanism can be adjusted synchronously, so that the device can adapt to the conveying and feeding operators of objects of different widths. With the adjustment of the separation mechanism, the device can adapt to the conveying and feeding operations of objects of different lengths. Finally, a set of feeding devices can adapt to the conveying and feeding operations of a variety of objects, thereby increasing the scope of application of the pillow packaging machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is an overall schematic diagram of the present invention; Figure 2 It is a schematic diagram of the internal structure of the housing of the present invention; Figure 3 It is a schematic diagram of the internal structure of a part of the housing of the present invention; Figure 4 It is a schematic diagram of the overall structure of the limiting plate and the square rod of the present invention; Figure 5 It is a schematic diagram of the overall structure of a part of the elastic plate and a part of the fixed plate of the present invention; Figure 6 It is a schematic diagram of the overall structure of some pull rods and round rods of the present invention; Figure 7 It is a schematic diagram of the overall structure of the soft metal belt and the elastic rod of the present invention; Figure 8 It is a front view of the internal structure of the fixing block of the present invention; Fig. 9 It is a schematic diagram of the overall structure of the pressure sensor and the hemispherical block of the present invention.

[0018] In the figure: 1. shell; 2. first driving roller; 3. feeding assembly; 31. first conveyor belt; 32. limit plate; 33. adjustment mechanism; 331. square rod; 332. round groove; 333. round hole; 334. round rod; 335. pull rod; 4. adjustment mechanism; 41. second driving roller; 42. second conveyor belt; 43. second driver; 44. elastic plate; 45. guide plate; 5. partition mechanism; 51. storage tank; 52. soft metal ring; 53. threaded hole; 54. fixing block; 55. elastic rod; 56. air storage tank; 57. push rod; 58. sealing ring; 59. pressure sensor; 510. hemispherical block; 511. infrared monitoring sensor; 6. first driver. DETAILED DESCRIPTION

[0019] In order to make the technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0020] Embodiment 1: The present invention provides a technical solution: Referring to Figure 1 - Fig. 9 The present invention discloses a feeding device of a pillow packaging machine, comprising a housing 1, two first driving rollers 2 are oppositely arranged at one end of the housing 1, and both ends of each first driving roller 2 rotate and penetrate the shell wall of the housing 1, a first driver 6 is fixedly installed on the outer wall of the housing 1, and two driving ends of the first driver 6 are respectively fixedly connected to the two first driving rollers 2, and a feeding assembly 3 is arranged on the two first driving rollers 2; The loading assembly 3 includes a first conveyor belt 31, which is sleeved on the outer peripheral sides of the two first driving rollers 2, and the outer peripheral wall of each first driving roller 2 is interference fit with the inner wall of the first conveyor belt 31, and two limit plates 32 are relatively slidably installed on the top side of the first conveyor belt 31, and the two limit plates 32 are provided with adjustment mechanisms 33, a partition mechanism 5 is provided on the first conveyor belt 31, and a positioning mechanism 4 is provided at the other end in the outer shell 1.

[0021] In this embodiment, when the feeding device of the improved pillow packaging machine is used, the operator adjusts the distance between the two limit plates 32 through the positioning mechanism 4, and can adjust the positioning mechanism 4 simultaneously, so that the device can adapt to the feeding operation of conveying objects of different widths. The operator cooperates with the adjustment of the separation mechanism 5, so that the device can adapt to the feeding operation of conveying objects of different lengths. After the adjustment of the above-mentioned device is completed, the first driver 6 starts to drive the first conveyor belt 31 to rotate at a constant speed through the first driving roller 2, and then the operator or the manipulator puts the items into the shell 1, and the positioning mechanism 4 automatically adjusts the position of the items, so that a number of items are pushed one by one from the middle position of the first conveyor belt 31 onto the first conveyor belt 31, and at the same time, the separation mechanism 5 synchronously controls the material transportation rate of the first conveyor belt 31 and the adjustment mechanism 33, so that the spacing between the items on the first conveyor belt 31 is almost equal, and finally the first conveyor belt 31 pushes the items and pushes the items one by one into the packaging paper of the pillow packaging machine for packaging processing. The device has a high degree of automation, and the operator is almost not required to perform other operations when performing the feeding operation of the pillow packaging machine.

[0022] In a further preferred embodiment of the present invention, Figure 1 , Figure 2 and Figure 5As shown, the positioning mechanism 4 includes two second driving rollers 41, which are relatively arranged at the other end of the shell 1, and both ends of each second driving roller 41 rotate to penetrate the shell wall of the shell 1, and the outer peripheral sides of the two second driving rollers 41 are sleeved with a second conveyor belt 42, and a second driver 43 is fixedly installed on the outer wall of the shell 1, and the two driving ends of the second driver 43 are respectively fixedly connected to the two second driving rollers 41, and two inclined elastic plates 44 are relatively slidably installed on the second conveyor belt 42, and one end of the elastic plate 44 is fixedly connected to the corresponding limit plate 32, and the other end of the elastic plate 44 contacts the inner wall of the shell 1; In this embodiment, when the above-mentioned first driver 6 is started, the second driver 43 runs synchronously, and the second conveyor belt 42 is synchronously driven to rotate at a uniform speed through the second driving roller 41. The operator or the robot intermittently places the objects on the second conveyor belt 42. Due to the friction between the objects and the second conveyor belt 42, the rotating second conveyor belt 42 pushes the objects in the direction of the first conveyor belt 31. In the process of the objects moving between the two elastic plates 44, due to the mutual interference between the elastic plates 44 and the objects, the objects are located on the second conveyor belt 42 and slide, and automatically gather to the middle to gradually form a single linear arrangement.

[0023] In a further preferred embodiment of the present invention, Figure 2 and Figure 3 As shown, the second conveyor belt 42 is gap-matched with the first conveyor belt 31, two guide plates 45 are arranged between the first conveyor belt 31 and the second conveyor belt 42, and the top sides of the two guide plates 45 are arranged coplanar with the top sides of the first conveyor belt 31 and the second conveyor belt 42, and the guide plates 45 are fixedly connected to the inner wall of the housing 1; In this embodiment, when the second conveyor belt 42 pushes the articles, it will first push the articles onto the guide plate 45. When the articles move onto the guide plate 45, due to the push of subsequent articles or the push of the articles by the second conveyor belt 42, the articles directly cross the guide plate 45 and move onto the first conveyor belt 31. Then, they move together with the first conveyor belt 31 and are finally pushed into the plastic wrapping paper for packaging. This prevents the articles from getting stuck in the gap between the first conveyor belt 31 and the second conveyor belt 42 without affecting the rotation of the elastic rod 55.

[0024] In a further preferred embodiment of the present invention, Figure 1 and Figure 4 As shown, the adjustment mechanism 33 includes a plurality of square rods 331, and the plurality of square rods 331 slide through the two limit plates 32, and the spacing between two adjacent square rods 331 is equal, and the two ends of the square rods 331 are fixedly connected to the inner wall of the housing 1; In this embodiment, when adjusting the spacing between the limit plates 32, the operator pushes the limit plates 32. Due to the mutual interference between the limit plates 32 and the square rods 331, the limit rods slide on a linear track on the first conveyor belt 31, thereby avoiding the inclination angle of the limit plates 32 when they move, which affects the use of the limit plates 32.

[0025] In a further preferred embodiment of the present invention, Figure 4 - Figure 6 As shown, a plurality of circular grooves 332 are formed on the square rod 331, and the spacing between two adjacent circular grooves 332 is equal. A circular hole 333 is formed on the top side of the limiting plate 32 at a position corresponding to the circular hole 333. A circular rod 334 is slidably installed in the circular hole 333, and the bottom end of the circular rod 334 is hemispherical and inserted into the corresponding circular groove 332. In this embodiment, after the position adjustment of the limit plate 32 is completed, the round rod 334 is inserted into the circular groove 332 through the circular hole 333. At this time, due to the mutual interference between the round rod 334 and the inner wall of the circular groove 332 and the inner wall of the circular hole 333, the position between the limit plate 32 and the square rod 331 is locked. Combined with the mutual interference between the limit plate 32 and the square rod 331, the limit plate 32 is stably maintained in a straight state.

[0026] In a further preferred embodiment of the present invention, Figure 4 and Figure 6 As shown, a pull rod 335 is provided on the top side of the limit plate 32, and the bottom side of the pull rod 335 is fixedly connected to the corresponding round rod 334; In this embodiment, when the round rod 334 is inserted into the circular groove 332 , the operator can hold the pull rod 335 to simultaneously insert the round rod 334 on one side into the circular groove 332 , which is simple to operate and facilitates the adjustment operation of the limit plate 32 .

[0027] In a further preferred embodiment of the present invention, Figure 3 , Figure 7 and Figure 8 As shown, the separation mechanism 5 includes a plurality of elastic rods 55, a storage groove 51 is provided at the middle position on the outer peripheral wall of the first conveyor belt 31, a soft metal ring 52 is fixedly sleeved in the storage groove 51, a plurality of threaded holes 53 are provided on the soft metal ring 52, and the spacing between two adjacent threaded holes 53 is equal, a plurality of fixing blocks 54 with U-shaped cross-sections are provided on the outer peripheral wall of the soft metal ring 52, and the fixing blocks 54 are threadedly connected with the inner walls of the corresponding threaded holes 53 through threaded shafts, and the bottom ends of the elastic rods 55 are inserted into the grooves of the corresponding fixing blocks 54 and are rotatably connected with the corresponding fixing blocks 54; In this embodiment, the soft metal ring 52 is provided to enhance the strength of a portion of the first conveyor belt 31, thereby making the position between the elastic rod 55 and the first conveyor belt 31 more stable, thereby preventing the position of the elastic rod 55 from being deviated due to the telescopic deformation of the first conveyor belt 31 and affecting the use of the device; During the rotation of the first conveyor belt 31, the metal ring and the fixed block 54 can synchronously drive the elastic rod 55 to move together. When the elastic rod 55 and the feed slot of the pillow packaging machine collide with each other, the elastic rod 55 rotates toward the storage slot 51 and retracts into the storage slot 51 to prevent the first conveyor belt 31 from getting stuck. When adjusting the partition mechanism 5 as mentioned above, the operator holds the elastic rod 55 and rotates the elastic rod 55 in the opposite direction. Due to the mutual interference between the elastic plate 44 and the inner wall of the fixed block 54, the rotating elastic rod 55 synchronously drives the fixed block 54 to rotate, and screws the threaded shaft out of the threaded hole 53. In conjunction with the slow rotation of the first conveyor belt 31, the operator can remove all the elastic rods 55 on the first conveyor belt 31 in turn, and then the operator can install an appropriate amount of elastic rods 55 on the soft metal ring 52 as needed, and the distance between two adjacent elastic rods 55 can be adjusted, so that the device can adapt to the use of various width specifications of items.

[0028] In a further preferred embodiment of the present invention, Figure 8 As shown, the side of one end of the bottom side of the elastic rod 55 is arranged in an arc shape, and the side of the other end of the bottom side of the elastic rod 55 is arranged in a right angle shape. A plurality of air storage grooves 56 are provided on the inner bottom wall of the fixed block 54 at positions corresponding to the arc surface of the elastic rod 55. A push rod 57 is slidably installed in the air storage groove 56, and the top end of the push rod 57 is arranged in a hemispherical shape and contacts the arc surface of the bottom end of the corresponding elastic rod 55. A sealing ring 58 is fixedly installed on the outer peripheral wall of the push rod 57, and the outer peripheral wall of the sealing ring 58 contacts the inner wall of the corresponding air storage groove 56. In the above-mentioned embodiment, during the rotation of the elastic rod 55, due to the mutual conflict between the arc surface of the elastic rod 55 and the hemispherical end of the push rod 57, the air in the storage tank 51 can be pressed into the air storage tank 56 along the hemispherical end of the push rod 57 to compress the air. After the conflict between the elastic rod 55 and the external object is released, due to the push of the push rod 57 by the gas in the air storage tank 56 and the mutual conflict between the hemispherical end of the push rod 57 and the arc surface of the elastic rod 55, the elastic rod 55 can be pushed to rotate in the opposite direction along the arc surface of the elastic rod 55, so that the elastic rod 55 automatically returns to the vertical state.

[0029] In a further preferred embodiment of the present invention, Figure 3 and Fig. 9 As shown, a pressure sensor 59 is fixedly installed at a position corresponding to the elastic rod 55 on the inner bottom wall of the housing 1 through a support rod, a hemispherical block 510 is fixedly installed on the top of the pressure sensor 59, and an infrared monitoring sensor 511 is fixedly installed in the gap between the two guide plates 45; In this embodiment, during the rotation of the first conveyor belt 31, the elastic rod 55 can be driven to move synchronously. When the elastic rod 55 moves to the position of the hemispherical block 510, the arc surface of the elastic rod 55 conflicts with the arc surface of the hemispherical block 510, and the pressure detected by the pressure sensor 59 changes. At this time, the external host can know that the elastic rod 55 opposite to the elastic rod 55 is located at the leftmost end of the top side of the conveyor belt. At this time, if the infrared monitoring sensor 511 detects that there is no object on the guide plate 45, the first driver 6 stops running to avoid interruption of the objects transported by the first conveyor belt 31, and at the same time, the second conveyor belt 42 speeds up to enable subsequent objects to move quickly to the guide plate 45. After the infrared monitoring sensor 511 detects that there are objects on the guide plate 45, the first conveyor belt 31 rotates again to resume the above-mentioned feeding operation. When the second conveyor belt 42 pushes the articles onto the first conveyor belt 31, the infrared monitoring sensor 511 detects the articles on the guide plate 45 and cooperates with the pushing rate of the articles by the second conveyor, and then after monitoring that most of the articles are pushed onto the first conveyor belt 31, the operation of the second driver 43 is suspended. At this time, due to the friction between the articles and the first conveyor belt 31, the rotating first conveyor belt 31 can still drive the articles to continue to slide off the guide plate 45 to perform the feeding and placing operation of the articles. After the pressure sensor 59 detects that the elastic rod 55 is in place, the second conveyor belt 42 resumes operation and pushes the next article onto the first conveyor belt 31 to avoid conflict between the articles and the elastic rod 55, which would cause damage to the articles.

[0030] Embodiment 2: A feeding method for a pillow packaging machine, comprising the feeding device for the pillow packaging machine described above, characterized in that it specifically comprises the following steps: Step 1: First, the operator holds the pull rod 335 to pull the round rod 334 out of the round hole 333, and then the operator pushes the limit plate 32 to adjust the distance between the two limit plates 32 according to the conveyed objects. After the position adjustment of the limit plates 32 is completed, the round rod 334 is reinserted into the circular groove 332 to lock the position of the limit plates 32, and the position adjustment between the limit plates 32 is completed; Step 2: The operator holds the elastic rod 55 and screws the threaded shaft out of the threaded hole 53. The elastic rods 55 on the soft metal ring 52 can be completely removed by coordinating the rotation of the first conveyor belt 31. Then, a suitable number of elastic rods 55 are installed on the soft metal according to the conveyed objects, and the distance between two adjacent elastic rods 55 can be adjusted. Step 3: The operator or the robot places the article on the second conveyor belt 42, and pushes the article toward the guide plate 45 through the second conveyor belt 42. In the process of the article moving between the two elastic plates 44, due to the mutual interference between the elastic plates 44 and the article, the article slides on the second conveyor belt 42 and automatically gathers toward the middle, so that the article on the second conveyor belt 42 is pushed onto the first conveyor belt 31 in turn, and finally the article is pushed into the plastic packaging paper by the first conveyor belt 31 for packaging. Step 4: In the process of the objects sliding on the guide plate 45 in step 3, the external control host determines the sliding rate of the objects on the guide plate 45 through the infrared monitoring sensor 511 and the rotation rate of the second conveyor belt 42, and determines whether the left end of the top side of the first conveyor belt 31 is supported by the elastic rod 55 through the pressure change monitored by the pressure sensor 59, and finally, by pausing the operation of the second conveyor belt 42 or pausing the operation of the second conveyor belt 42, the objects on the second conveyor belt 42 are put into all the intervals between the elastic rods 55 in turn, and due to the mutual interference between the elastic rods 55 and the objects, the spacing between the objects on the first conveyor belt 31 remains stable.

[0031] Working principle: When the feeding device of the improved pillow packaging machine is used, the operator first holds the pull rod 335 to pull the round rod 334 out of the limit plate 32 at one time, and then the operator pushes the limit plate 32. Due to the mutual interference between the square rod 331 and the limit plate 32, the limit plate 32 is located on the first conveyor belt 31 and moves in a linear track. After the position adjustment of the limit plate 32 is completed, the position of the round rod 334 is readjusted by the pull rod 335, so that the round rod 334 passes through the circular hole 333 and is inserted into the circular groove 332. At this time, due to the mutual interference between the round rod 334 and the inner wall of the circular groove 332 and the inner wall of the circular hole 333, the position between the limit plate 32 and the square rod 331 is stuck, and the position of the limit plate 32 in the housing 1 remains stable. According to the above and the needs of conveying objects, the distance between the two limit plates 32 is adjusted to meet the feeding needs of the objects. It should be noted that, during the movement of the above-mentioned limit plate 32, due to the mutual interference between the elastic plate 44 and the inner wall of the housing 1, the elastic plate 44 slides on the second conveyor belt 42, and the inclination angle of the elastic plate 44 is automatically adjusted; After the position adjustment of the above-mentioned limit plate 32 and the elastic plate 44 is completed, the first driver 6 is started, and the first conveyor belt 31 is driven to rotate slowly through the driving roller, and the elastic rod 55 is driven to move synchronously through the fixed block 54. The operator holds the elastic rod 55 and rotates the elastic rod 55 in the opposite direction. Due to the mutual interference between the elastic plate 44 and the inner wall of the fixed block 54, the rotating elastic rod 55 synchronously drives the fixed block 54 to rotate, and the threaded shaft is screwed out of the threaded hole 53. With the rotation of the first conveyor belt 31, the operator can remove all the elastic rods 55 on the first conveyor belt 31 in turn. After the elastic rod 55 is disassembled, the operator screws the threaded rod into the threaded hole 53 again, so that the elastic rod 55 is constrained and limited in the storage slot 51 by the fixing block 54. The operator can adjust the number of elastic rods 55 installed on the outer peripheral side of the soft metal ring 52 according to the transportation requirements of the goods, thereby adjusting the distance between the two elastic rods 55; After the number of the elastic plates 44 and the position of the limit plates 32 are adjusted, the first driver 6 and the second driver 43 are started, and the first conveyor belt 31 and the second conveyor belt 42 are driven to rotate at a uniform speed through the first driving roller 2 and the second driving roller 41. Then, the operator or the manipulator intermittently places the articles on the second conveyor belt 42. Due to the friction between the articles and the second conveyor belt 42, the rotating second conveyor belt 42 pushes the articles toward the guide plate 45. In the process of the articles moving between the two elastic plates 44, due to the mutual interference between the elastic plates 44 and the articles, the articles slide on the second conveyor belt 42 and automatically gather toward the middle to gradually form a single linear arrangement. When the articles move onto the guide plate 45, due to the push of subsequent articles or the push of the second conveyor belt 42 to the articles, the articles directly cross the guide plate 45 and move to the first conveyor belt 31, and then move together with the first conveyor belt 31, and finally are pushed into the plastic packaging paper for the packaging operation of the articles. During the rotation of the first conveyor belt 31, the elastic rod 55 can be driven to move synchronously. When the elastic rod 55 moves to the position of the hemispherical block 510, the arc surface of the elastic rod 55 conflicts with the arc surface of the hemispherical block 510, and the pressure detected by the pressure sensor 59 changes. At this time, the external host can know that the elastic rod 55 opposite to the elastic rod 55 is located at the leftmost end of the top side of the conveyor belt. At this time, if the infrared monitoring sensor 511 detects that there is no object on the guide plate 45, the first driver 6 stops running to avoid interruption of the objects transported by the first conveyor belt 31, and at the same time, the second conveyor belt 42 speeds up to enable subsequent objects to move quickly to the guide plate 45. After the infrared monitoring sensor 511 detects that there are objects on the guide plate 45, the first conveyor belt 31 rotates again to resume the above-mentioned feeding operation. When the second conveyor belt 42 pushes the articles onto the first conveyor belt 31, the infrared monitoring sensor 511 detects the articles on the guide plate 45 and cooperates with the pushing speed of the articles by the second conveyor, and then after monitoring that most of the articles are pushed onto the first conveyor belt 31, the operation of the second driver 43 is suspended. At this time, due to the friction between the articles and the first conveyor belt 31, the rotating first conveyor belt 31 can still drive the articles to continue to slide off the guide plate 45, and the feeding and placing operation of the articles is performed. After the pressure sensor 59 monitors that the elastic rod 55 is in place, the second conveyor belt 42 resumes operation and pushes the next article onto the first conveyor belt 31 to avoid the articles and the elastic rod 55 from conflicting with each other, resulting in damage to the articles. When the elastic rod 55 is rotating, and when the elastic rod 55 conflicts with the feed slot of the pillow packaging machine, the elastic rod 55 rotates toward the storage slot 51 and retracts into the storage slot 51 to prevent the first conveyor belt 31 from getting stuck. In addition, when the elastic rod 55 is rotating, the arc surface of the elastic rod 55 conflicts with the hemispherical end of the push rod 57, and the hemispherical end of the push rod 57 can be pressed into the air storage tank 56 to compress the air in the storage tank 51. After the conflict between the elastic rod 55 and the external object is released, the push of the push rod 57 by the gas in the air storage tank 56 and the conflict between the hemispherical end of the push rod 57 and the arc surface of the elastic rod 55 can push the elastic rod 55 to rotate in the opposite direction along the arc surface of the elastic rod 55, so that the elastic rod 55 automatically returns to the vertical state.

[0032] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions only describe the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention. These changes and improvements fall within the scope of the present invention. The scope of protection claimed by the present invention is defined by the attached claims and their equivalents.

Claims

1. A feeding device for a pillow packaging machine, comprising a housing (1), characterized in that: Two first drive rollers (2) are arranged opposite to each other at one end of the shell (1), and both ends of each first drive roller (2) rotate to penetrate the shell wall of the shell (1); a first driver (6) is fixedly mounted on the outer wall of the shell (1), and the two drive ends of the first driver (6) are respectively fixedly connected to the two first drive rollers (2); and a loading assembly (3) is arranged on the two first drive rollers (2); The loading assembly (3) comprises a first conveyor belt (31), the first conveyor belt (31) being sleeved on the outer peripheral sides of the two first driving rollers (2), and the outer peripheral wall of each first driving roller (2) is interference fit with the inner wall of the first conveyor belt (31), two limit plates (32) are relatively slidably mounted on the top side of the first conveyor belt (31), and the two limit plates (32) are provided with adjustment mechanisms (33), the first conveyor belt (31) is provided with a partition mechanism (5), and the other end in the housing (1) is provided with a positioning mechanism (4).

2. The feeding device of the pillow packaging machine according to claim 1, characterized in that: The positioning mechanism (4) comprises two second drive rollers (41), the two second drive rollers (41) are arranged at the other end of the outer shell (1) opposite to each other, and both ends of each second drive roller (41) rotate to penetrate the shell wall of the outer shell (1), and the outer peripheral side of the two second drive rollers (41) is sleeved with a second conveyor belt (42), and a second driver (43) is fixedly mounted on the outer wall of the outer shell (1), and the two driving ends of the second driver (43) are respectively fixedly connected to the two second drive rollers (41), and two inclined elastic plates (44) are relatively slidably mounted on the second conveyor belt (42), and one end of the elastic plate (44) is fixedly connected to the corresponding limit plate (32), and the other end of the elastic plate (44) contacts the inner wall of the outer shell (1).

3. The feeding device of the pillow packaging machine according to claim 2, characterized in that: The second conveyor belt (42) is loosely fitted with the first conveyor belt (31); two guide plates (45) are arranged opposite to each other between the first conveyor belt (31) and the second conveyor belt (42); the top sides of the two guide plates (45) are arranged coplanar with the top sides of the first conveyor belt (31) and the second conveyor belt (42); and the guide plates (45) are fixedly connected to the inner wall of the outer shell (1).

4. The feeding device of the pillow packaging machine according to claim 3 is characterized in that: The adjustment mechanism (33) comprises a plurality of square rods (331), the plurality of square rods (331) slidingly passing through the two limit plates (32), and the spacing between two adjacent square rods (331) being equal, and the two ends of the square rods (331) being fixedly connected to the inner wall of the outer shell (1).

5. The feeding device of the pillow packaging machine according to claim 4, characterized in that: A plurality of circular grooves (332) are formed on the square rod (331) in a manner that is opposite to each other, and the spacing between two adjacent circular grooves (332) is equal. A circular hole (333) is formed on the top side of the limiting plate (32) at a position corresponding to the circular hole (333). A circular rod (334) is slidably installed in the circular hole (333), and the bottom end of the circular rod (334) is hemispherically arranged and inserted into the corresponding circular groove (332).

6. The feeding device of the pillow packaging machine according to claim 5, characterized in that: A pull rod (335) is provided on the top side of the limiting plate (32), and the bottom side of the pull rod (335) is fixedly connected to the corresponding round rod (334).

7. The feeding device of the pillow packaging machine according to claim 6, characterized in that: The partition mechanism (5) comprises a plurality of elastic rods (55); a storage groove (51) is provided at a middle position on the outer peripheral wall of the first conveyor belt (31); a soft metal ring (52) is fixedly sleeved in the storage groove (51); a plurality of threaded holes (53) are provided on the soft metal ring (52); and the spacing between two adjacent threaded holes (53) is equal; a plurality of fixing blocks (54) having a U-shaped cross section are provided on the outer peripheral wall of the soft metal ring (52); the fixing blocks (54) are threadedly connected to the inner walls of the corresponding threaded holes (53) via threaded shafts; and the bottom ends of the elastic rods (55) are inserted into the grooves of the corresponding fixing blocks (54) and are rotatably connected to the corresponding fixing blocks (54).

8. The feeding device of the pillow packaging machine according to claim 7, characterized in that: The side edge of one end of the bottom side of the elastic rod (55) is arranged in an arcuate shape, and the side edge of the other end of the bottom side of the elastic rod (55) is arranged in a right angle shape. A plurality of air storage grooves (56) are provided on the inner bottom wall of the fixed block (54) at positions corresponding to the arcuate surfaces of the elastic rods (55). A push rod (57) is slidably mounted in the air storage groove (56), and the top end of the push rod (57) is arranged in a hemispherical shape and contacts the arcuate surface of the bottom end of the corresponding elastic rod (55). A sealing ring (58) is fixedly mounted on the outer peripheral wall of the push rod (57), and the outer peripheral wall of the sealing ring (58) contacts the inner wall of the corresponding air storage groove (56).

9. The feeding device of the pillow packaging machine according to claim 8, characterized in that: A pressure sensor (59) is fixedly mounted on the inner bottom wall of the housing (1) at a position corresponding to the elastic rod (55) via a support rod, a hemispherical block (510) is fixedly mounted on the top of the pressure sensor (59), and an infrared monitoring sensor (511) is fixedly mounted in the gap between the two guide plates (45).

10. A feeding method for a pillow packaging machine, comprising a feeding device for a pillow packaging machine according to any one of claims 1 to 9, characterized in that: The specific steps include: Step 1: First, the operator holds the pull rod (335) to pull the round rod (334) out of the round hole (333), and then the operator pushes the limit plate (32) to adjust the distance between the two limit plates (32) according to the conveyed object. After the position adjustment of the limit plates (32) is completed, the round rod (334) is reinserted into the circular groove (332) to lock the position of the limit plates (32), and the position adjustment between the limit plates (32) is completed; Step 2: The operator holds the elastic rod (55) and screws the threaded shaft out of the threaded hole (53), and the elastic rods (55) on the soft metal ring (52) can be completely removed by coordinating the rotation of the first conveyor belt (31). Then, a suitable number of elastic rods (55) are installed on the soft metal according to the conveyed objects, and the distance between two adjacent elastic rods (55) can be adjusted. Step 3: The operator or the robot places the article on the second conveyor belt (42), and pushes the article toward the guide plate (45) through the second conveyor belt (42). During the process of the article moving between the two elastic plates (44), due to the mutual interference between the elastic plates (44) and the article, the article slides on the second conveyor belt (42) and automatically gathers toward the middle, so that the article on the second conveyor belt (42) is pushed onto the first conveyor belt (31) in turn, and finally the article is pushed into the plastic wrapping paper by the first conveyor belt (31) for packaging. Step 4: In the process of the objects sliding on the guide plate (45) in step 3, the external control host determines the sliding speed of the objects on the guide plate (45) through the infrared monitoring sensor (511) in coordination with the rotation speed of the second conveyor belt (42), and determines whether the left end of the top side of the first conveyor belt (31) is supported by the elastic rod (55) through the pressure change monitored by the pressure sensor (59). Finally, by pausing the operation of the second conveyor belt (42) or pausing the operation of the second conveyor belt (42), the objects on the second conveyor belt (42) are sequentially put into all the spaces between the elastic rods (55), and due to the mutual interference between the elastic rods (55) and the objects, the spacing between the objects on the first conveyor belt (31) remains stable.

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