Feeding device of case unpacker

Abstract

The utility model discloses a feeding device of a case unpacker, which comprises a temporary storage mechanism and a case taking mechanism arranged in front of the temporary storage mechanism. A plurality of lifting rods which are always located at the same horizontal height and a lifting driving module for driving the lifting rods to move left and right and ascend and descend are distributed on the lower middle portions of the left side and the right side of the material storage frame, kidney-shaped holes allowing the lifting rods to penetrate through are formed in the side wall of the material storage frame, and the lifting rods extend in the left-right direction; one end of the outer side is fixed on the lifting driving module, and one end of the inner side is a tip. The feeding device of the carton unpacking machine has the advantage that the bottommost layer of cartons can be easily taken out when the cartons are taken out from the bottom of the storage frame.

Description

Technical Field

[0001] The utility model belongs to the technical field of packaging machinery and relates to an automatic box opener, in particular to a feeding device of the box opener. Background Art

[0002] In order to facilitate transportation and storage, cartons are folded into flat sheets and stacked before use. When the product needs to be packaged, the flat cartons are opened and shaped, which is called "unpacking". In the past, unpacking was done manually, which was inefficient and labor-intensive, and no longer met the requirements of the era of automatic packaging.

[0003] With the development of technology, automatic carton openers emerged. Automatic carton openers can separate the stacked flat cartons one by one and open them into a three-dimensional shape, and then close the leaves at the bottom of the box to seal them and fix them with tape.

[0004] The loading device of the carton opener is a device used to transport stacked cartons to the storage frame, and the picking mechanism takes out the cartons in the storage frame one by one and transmits them to the carton opener. The picking mechanism can pick up materials from the top or the bottom. Picking up materials from the top will make the height of the carton opener very high, making the equipment structure not compact, while picking up materials from the bottom has the advantage of a compact structure. However, there is a problem with picking up materials from the bottom: since the cartons are stacked in the storage frame in stacks, when taking the cartons on the lowest layer, the entire stack of cartons is pressed on the cartons on the lowest layer, making it difficult for the picking mechanism to take out the cartons on the lowest layer. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide a loading device for a carton opener which can easily take out the cartons at the bottom layer in a storage frame, so as to overcome the defects of the prior art.

[0006] The purpose of the utility model can be achieved through the following technical solutions:

[0007] A loading device for a box opening machine comprises a temporary storage mechanism and a box taking mechanism arranged in front of the temporary storage mechanism, the temporary storage mechanism comprises a storage frame, the storage frame has a feed opening on the rear side, and a discharge port on the front lower part, the bottom surface of the inner cavity of the storage frame has a suspended area connected with the discharge port, the box taking mechanism comprises a conveyor belt and a suction cup assembly arranged on the conveyor belt, and the suction cup assembly can enter or exit the suspended area of ​​the storage frame through the discharge port under the drive of the conveyor belt, and is characterized in that: a plurality of lifting rods which are always at the same horizontal height and a lifting drive module which drives the lifting rods to move left and right and lift and lower are distributed in the middle and lower parts of the left and right sides of the storage frame, a waist hole for the lifting rod to pass through is provided on the side wall of the storage frame, the lifting rod extends in the left and right directions, one outer end of the lifting rod is fixed on the lifting drive module, and the inner end is a pointed end.

[0008] The utility model adopts the above technical solution. When the suction cup assembly takes out the bottom carton from the storage frame, the lifting drive module drives the tip of the lifting rod to extend into the inner cavity of the storage frame and insert into the carton stack, so as to divide the stacked cartons in the storage frame into upper and lower piles, wherein the cartons in the lower pile are located below the lifting rod. The lifting drive module drives the lifting rod to move upward so that the lifting rod drives the cartons above it to move upward and separate from the cartons below. Compared with the gravity of all cartons in the storage frame acting on the suction cup assembly, the lifting rod provides effective support for the cartons in the upper pile, and only the gravity of the cartons in the lower pile acts on the suction cup assembly, which effectively reduces the pressure on the suction cup assembly, thereby protecting the suction cup assembly, reducing the friction between the lowest layer of cartons and the bottom surface of the storage frame, and reducing the difficulty of the box-taking mechanism to take out the boxes. Therefore, the loading device of the carton opener of the utility model has the advantage of easily taking out the bottom layer of cartons when taking out the boxes from the bottom of the storage frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] The utility model is further described below in conjunction with the accompanying drawings:

[0010] Figure 1 It is a side view structural schematic diagram of the utility model

[0011] Figure 2 It is a three-dimensional structural schematic diagram of the utility model;

[0012] Figure 3 It is a front side view of the utility model;

[0013] Figure 4 It is a structural schematic diagram of the temporary storage mechanism and the lifting mechanism in the utility model;

[0014] Figure 5 yes Figure 4 The enlarged schematic diagram of point A in the middle;

[0015] Figure 6It is a partial structural schematic diagram of the temporary storage mechanism and the material taking mechanism in the utility model;

[0016] Figure 7 It is a structural schematic diagram of the suction cup assembly in the utility model;

[0017] Figure 8 It is a schematic diagram of the structure of a flat, unexpanded carton. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] The utility model is used for feeding the box opening machine Figure 8 The flat, unexpanded carton 60 shown is automatically conveyed to the carton opening mechanism of the carton opening machine.

[0020] like Figure 1 As shown, the loading device of the box opener of the present invention comprises a conveying mechanism 11 , a lifting mechanism 12 , a pushing mechanism 13 , a temporary storage mechanism 14 and a box taking mechanism 15 .

[0021] Combination Figure 2 , Figure 3 As shown, the conveying mechanism 11 is used to convey a stack of flat cartons. The conveying mechanism 11 includes a plurality of flat conveying rollers 112 rotatably mounted on a conveying frame 111, a conveying motor driving the conveying rollers 112 to rotate, and a positioning baffle 113 vertically arranged on the right side of the conveying frame. The positioning baffle 113 is located on the right side of the rear part of the conveying mechanism 11, extending in the front-to-back direction, and providing a positioning reference for the cartons 60 stacked on the conveying rollers 112. In this embodiment, the right side of the carton is placed against the positioning baffle 113 to achieve the positioning of the carton on the right side.

[0022] Furthermore, a stop plate 115 is fixed to the front end of the conveying frame 111. When the carton is conveyed to the stop plate 115, the stop plate 115 is used to prevent the carton 60 from moving forward. When the front side of the carton 60 is against the stop plate 115, the stop plate 115 plays a positioning and stopping role for the front side of the carton 60.

[0023] like Figure 1 , Figure 2 and Figure 4As shown, the lifting mechanism 12 is located at the front of the conveying mechanism 11, and includes a lifting frame 121 slidably mounted on the frame 50, a plurality of flat lifting rollers 122 rotatably mounted at the bottom of the lifting frame 121, and a lifting drive module 1212 for driving the lifting frame 121 to move up and down. Specifically, guide sleeves 123 are fixed on the left and right sides of the lifting frame 121, respectively, and the guide sleeves 123 are sleeved on the guide rods 51 on the left and right sides of the frame 50 and slidably cooperate with the guide rods 51. The lifting rollers 122 are arranged in the gap between the conveying rollers 112, and the lower part of the lifting frame 121 is provided with an avoidance groove 1211 for avoiding the conveying rollers 112 so that the lifting rollers 122 can be lowered to the bottom of the conveying rollers 112. The lifting drive module 1212 is a lifting cylinder.

[0024] The lifting frame 121 is driven by the lifting drive module 1212 and has an upper station and a lower station. When the lifting frame 121 is located at the lower station, the lifting roller 122 is placed below the conveying roller 112; when the cartons stacked on the conveying mechanism 11 are sent to the top of the lifting roller 122 by the conveying mechanism 11, the lifting drive module 1212 drives the lifting frame 121 to move upward, thereby driving the cartons 60 stacked on the lifting roller 122 to move upward; when the lifting frame 121 is located at the upper station, the top surface of the lifting roller 122 is slightly higher than or flush with the bottom surface of the inner cavity of the storage frame 141 of the temporary storage mechanism 14.

[0025] like Figure 2 and Figure 4 As shown, the pushing mechanism 13 is located above the lifting mechanism 12 and behind the temporary storage mechanism 14. The pushing mechanism 13 includes a pushing plate 131 slidably mounted on the frame 50 and a pushing driving module driving the pushing plate 131 to move forward and backward. The pushing driving module is a module driven by a servo motor. Specifically, slide rails 511 extending along the conveying direction are provided on both sides of the top of the frame 50. The upper end of the pushing plate 131 is fixed on the crossbeam 52. Slide blocks 53 slidably mounted on the slide rails 511 are provided at both ends of the crossbeam 52. The pushing driving module includes a pushing servo motor 54 and a synchronous belt transmission assembly 55 driven by the pushing servo motor 54. The slider 53 is connected to the synchronous belt 551 of the synchronous belt transmission assembly 55

[0026] When the lifting frame 121 is located at the upper working position, the pushing drive module drives the push plate 131 to move forward, so that the push plate 131 pushes the stacked cartons 60 on the lifting roller 122 forward and into the storage frame 141; after the stacked cartons 60 are completely pushed into the storage frame 141, the pushing drive module drives the push plate 131 to return to the initial position backward, waiting to push the next stack of cartons.

[0027] like Figure 3 , Figure 4 and Figure 6As shown, the temporary storage mechanism 14 is arranged in front of the lifting mechanism 12, and includes a storage frame 141 installed on the frame 50. The inner cavity of the storage frame 141 is used to place the stacked cartons. The rear part of the storage frame 141 has a feed opening 1412 facing the pushing mechanism 13, and the front part has a baffle plate 1413. The bottom of the baffle plate 1413 has a discharge port 1411 for the bottom layer of cartons to be pulled out. The height of the discharge port 1411 is slightly greater than the thickness of a layer of flat cartons, and only the bottom layer of cartons 60 in the storage frame 141 can pass through. The bottom surface of the inner cavity of the storage frame 141 near the discharge port 1411 also has a suspended area 143 that communicates with the discharge port 1411. The suction cup assembly 23 of the box taking mechanism 15 can enter the suspended area 143 through the discharge port 1411 and can absorb the lower surface of the bottom carton 60, and extract the bottom carton 60 from the storage frame 141 through the discharge port 1411 and transmit it to the box opening mechanism of the box opening machine.

[0028] like Figure 6 The box-taking mechanism 15 includes a support base 21, a conveyor belt assembly 22 installed on the top of the support base 21, and a box-supporting guide plate 29 arranged beside the conveyor belt assembly 22. The rear end of the conveyor belt assembly 22 extends to the suspended area 143 at the bottom of the storage frame 141, and the front end extends to the tail end of the support base 21. The conveyor belt assembly 22 includes a lower driving wheel and a lower driven wheel, a conveyor belt 221 that transmits and connects the lower driving wheel and the lower driven wheel, and a motor that drives the lower driving wheel to rotate. Two guide rails 222 distributed on the left and right sides of the conveyor belt 221 are also fixed on the top of the support base 21. Two suction cup assemblies 23 are installed on the conveyor belt 221. There are two box-supporting guide plates 29, which are distributed on the left and right sides of the conveyor belt assembly 22 and are installed on the support base 21, and their top surfaces are used to support the carton 60. Driven by the conveyor belt assembly 22, the suction cup assembly 23 can run to the suspended part of the material storage frame, and then absorb the bottom layer of the carton 60 in the material storage frame 141 and pull it out of the material storage frame to be transported to the unpacking mechanism of the unpacking machine.

[0029] The two suction cup assemblies 23 are distributed on the left and right sides of the rear portion of the conveyor belt 221. Figure 7 As shown, the suction cup assembly 23 includes a suction cup slide 231 fixed on the conveyor belt 221 and slidably mounted with the guide rail 222 on the same side, a plurality of transport suction cups 232 arranged on the suction cup slide 231, and a suction cup lifting module 233 for driving the transport suction cups 232 to rise and fall. In this embodiment, the suction cup lifting module 233 is a lifting cylinder.

[0030] The suction cup lifting module 233 is fixed on the suction cup slide 231, and a horizontally arranged connecting plate 234 is fixed on its driving end, and two transport suction cups 232 spaced apart along the transmission direction are installed on the connecting plate 234. In the utility model, when the suction cup assembly 23 is driven by the conveyor belt 221 to run to the suspended area at the bottom of the storage frame, the transport suction cup 232 is driven by the suction cup lifting module 233 to rise upward, and the transport suction cup 232 sucks the lower surface of the bottom carton, and then the conveyor belt assembly 22 pulls the bottom carton forward out of the storage frame 141 through the discharge port and transmits it to the unpacking mechanism of the unpacking machine. After the carton reaches the unpacking mechanism, the transport suction cup 232 releases the carton and descends and separates from the carton under the drive of the suction cup lifting module 233.

[0031] In the utility model, the conveyor belt 221 is driven by a motor to rotate forward and reverse alternately, so that the left and right sides of the conveyor belt 221 move forward and backward alternately, so that the suction cup assemblies on both sides can alternately take materials from the material storage frame, that is, when the suction cup assembly on one side transfers the carton from the material storage frame to the unpacking mechanism, the suction cup assembly on the other side simultaneously returns from the unpacking mechanism to the material storage frame to take out the next bottom carton, thereby improving the material taking rhythm.

[0032] In order to reduce the difficulty of taking materials by the box-taking mechanism, Figure 4 and Figure 5 As shown, the temporary storage mechanism 14 also includes a plurality of lifting rods 142 distributed on the left and right sides of the lower middle part of the material storage frame 141 and a lifting driving module for driving the lifting rods 142 to move left and right and rise and fall. The plurality of lifting rods 142 are always at the same level.

[0033] In this embodiment, the side wall of the material storage frame 141 is provided with a waist hole 1414 for the lifting rod 142 to pass through, and the waist hole 1414 extends in the up-down direction. The lifting rod 142 extends in the left-right direction. The lifting drive module includes a lifting cylinder for driving the lifting rod 142 to rise and fall and a translation cylinder for driving the lifting rod 142 to move left and right. Among them, the lifting cylinder of the lifting drive module is fixed on the outer wall of the material storage frame 141, and the translation cylinder is fixed on the driving end of the lifting motor, and the driving end of the translation cylinder is connected to one end of the outer side of the lifting rod 142. One end of the inner side of the lifting rod 142 is a tip, which can extend into the inner cavity of the material storage frame 141 through the waist hole 1414.

[0034] Combination Figure 6 and Figure 7As shown, when the suction cup assembly 23 is to take out the bottom carton from the storage frame 141, the lifting drive module drives the tip of the lifting rod 142 to extend into the inner cavity of the storage frame 141 and insert into the carton stack, so as to divide the stacked cartons in the storage frame 141 into two upper and lower stacks. Among them, the cartons in the lower stack are located below the lifting rod 142, and the number of cartons is 3 to 5. The lifting drive module drives the lifting rod 142 to move upward, so that the lifting rod 142 drives the cartons above it (i.e., the cartons in the upper stack) to move upward and separate from the cartons below. Compared with the situation where the gravity of all cartons 60 in the storage frame 141 acts on the suction cup assembly 23, the lifting rod 142 provides effective support for the cartons in the upper stack, so that only the gravity of the cartons in the lower stack acts on the suction cup assembly 23, effectively reducing the pressure on the suction cup assembly 23, thereby protecting the suction cup assembly 23, and reducing the friction between the lowest layer of cartons and the bottom surface of the storage frame, thereby reducing the difficulty of the box retrieval mechanism.

[0035] After all cartons in the lower stack are taken out by the suction cup assembly 23, the lifting drive module drives the lifting rod 142 to move downward, so that the cartons above the lifting rod 142 move downward and contact the bottom of the inner cavity of the storage frame 141, and then the lifting drive module drives the lifting rod 142 to move out of the storage frame 141, thereby separating the lifting rod 142 from the cartons in the storage frame 141. Then the lifting drive module drives the lifting rod 142 to move upward for a certain distance again, and then repeats the above action, that is, the lifting drive module drives the lifting rod 142 to extend into the inner cavity of the storage frame 141 and insert into the carton stack, and then lifts the upper carton again, and re-splits the cartons in the storage frame 141 into two upper and lower stacks.

[0036] The above detailed description of the utility model is only a preferred embodiment of the utility model and cannot be considered to limit the scope of patent protection of the utility model. All equivalent changes and improvements made based on the contents disclosed in the utility model should still fall within the scope of patent protection of the utility model.

Claims

1. A loading device for a box opener, comprising a temporary storage mechanism and a box-taking mechanism arranged in front of the temporary storage mechanism, wherein the temporary storage mechanism comprises a material storage frame, the rear side of the material storage frame has a feeding opening, the lower front side has a material discharge port, the inner cavity bottom surface of the material storage frame has a suspended area connected to the material discharge port, the box-taking mechanism comprises a conveyor belt and a suction cup assembly arranged on the conveyor belt, the suction cup assembly can enter or exit the suspended area of ​​the material storage frame through the material discharge port under the drive of the conveyor belt, and is characterized in that: A plurality of lifting rods which are always at the same horizontal height and a lifting drive module which drives the lifting rods to move left and right and to rise and fall are distributed in the middle and lower parts of the left and right sides of the material storage frame. A waist hole for the lifting rods to pass through is provided on the side wall of the material storage frame. The lifting rods extend in the left and right directions, one outer end of which is fixed on the lifting drive module and the inner end is a pointed end.

2. The feeding device of the box opener according to claim 1, characterized in that: The box taking mechanism also includes box supporting guide plates arranged on both sides of the conveyor belt for supporting cartons.

3. The feeding device of the box opener according to claim 2, characterized in that: The box-taking mechanism also includes guide rails arranged on both sides of the conveyor belt, and the suction cup assembly includes a suction cup slide, a suction cup lifting module, and a transport suction cup. The suction cup slide is slidably installed on the guide rails and is fixed to the conveyor belt, the suction cup lifting module is fixed on the suction cup slide, and the transport suction cup is fixed on the driving end of the suction cup lifting module.

4. The loading device of the box opener according to claim 1, characterized in that: There are two suction cup assemblies, which are arranged on both sides of the conveyor belt. Under the alternating forward rotation and reverse rotation of the conveyor belt, the two suction cup assemblies alternately enter and exit the suspended area.

5. The feeding device for the box opener according to claim 1, characterized in that: It also includes a conveying mechanism, a lifting mechanism and a pushing mechanism. The lifting mechanism is located in the front part of the conveying mechanism, and the pushing mechanism is located above the lifting mechanism and behind the temporary storage mechanism.

6. The loading device of the box opening machine according to claim 5, characterized in that: The conveying mechanism comprises a plurality of flat conveying rollers rotatably mounted on a conveying frame and a conveying motor driving the conveying rollers to rotate.

7. The feeding device of the box opening machine according to claim 6, characterized in that: A positioning baffle is provided on one side of the conveyor, and a stopper is provided on the front end.

8. The loading device of the box opening machine according to claim 6, characterized in that: The lifting mechanism includes a lifting frame slidably installed on a frame, a plurality of flat lifting rollers rotatably installed at the lower part of the lifting frame, and a lifting drive module driving the lifting frame to move up and down. The lifting frame is driven by the lifting drive module to have an upper station and a lower station. When the lifting frame is located at the lower station, the lifting rollers are located below the conveying rollers. When the lifting frame is located at the upper station, the top surface of the lifting rollers is slightly higher than or flush with the bottom surface of the inner cavity of the material storage frame of the temporary storage mechanism.

9. The loading device of the box opener according to claim 5, characterized in that: The material pushing mechanism comprises a pushing plate which is slidably mounted on a frame and a pushing driving module which drives the pushing plate to move forward and backward.

10. The loading device of the box opening machine according to claim 1, characterized in that: The discharge port only allows the cartons at the bottom layer in the storage frame to pass through.

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