Stacking unit for carton stacking machine

Abstract

The invention relates to the technical field of measurement fixing devices, in particular to a stacking unit for a carton stacking machine, which comprises a connecting frame, an adsorption row assembly and an air valve assembly, the connecting frame is used for being butted with a manipulator, brackets are fixedly mounted at two ends of the connecting frame, limiting seats are fixedly connected to the brackets at equal intervals, and a second collection row is fixedly mounted at one end of the connecting frame. The bottom end of the second collecting row is fixedly communicated with a plurality of first ventilation pipes, the multiple adsorption row assemblies are arranged side by side, each adsorption row assembly comprises a longitudinal bent frame, a main cavity channel is formed in one side of each longitudinal bent frame, and one end of each longitudinal bent frame is fixedly communicated with a butt joint opening. According to the carton conveying system, through the arrangement of the multiple adsorption row set frames, the two outermost side adsorption row assemblies in the multiple adsorption row assemblies making contact with the carton do not communicate with the second collection row, leakage is avoided, when the cartons of different sizes are adsorbed and conveyed, stable adsorption is achieved, the pressure loss risk during adsorption is reduced, and the vacuum degree of the system is conveniently maintained.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of measuring fixing device, and particularly relates to a stacking unit for a carton stacking machine. BACKGROUND

[0002] In the existing carton stacking machine, part of the conveying mode is to convey the carton by using a vacuum suction device, a plurality of suction heads are arranged on the vacuum suction device, but when the suction heads are used to suck different sizes of cartons, the size of the vacuum suction device does not match part of the cartons, so that part of the suction heads on the periphery is not in contact with the carton (or only part of the suction heads is in contact with the carton), and the part of the suction heads becomes a leakage point during suction, which consumes the suction capacity of the vacuum generating device, and causes the vacuum degree of the suction system to decrease. In the existing vacuum suction device, the power of the vacuum pump is generally increased to compensate for the pressure relief effect of part of the suction heads, but this causes the energy consumption to increase and the noise to increase, and long-term operation in the high leakage condition may increase the wear of the equipment. To solve the above problems, a stacking unit for a carton stacking machine is provided. SUMMARY

[0003] The present application aims to provide a stacking unit for a carton stacking machine to solve the problems in the background.

[0004] To achieve the above-mentioned purpose, the present application provides the following technical scheme:

[0005] A stacking unit for a carton stacking machine, comprising:

[0006] A connecting frame is used to be connected with a manipulator, both ends of the connecting frame are fixedly provided with brackets, limit seats are fixedly connected to the brackets at equal intervals, a second collecting row is fixedly installed at one end of the connecting frame, and a plurality of air pipes one are fixedly communicated with the bottom end of the second collecting row;

[0007] A plurality of suction row assemblies are arranged side by side, the suction row assembly comprises a longitudinal row frame, a main cavity is formed in one side of the longitudinal row frame, a connecting port is fixedly communicated with one end of the longitudinal row frame, a plurality of mounting holes are formed in the top surface of the longitudinal row frame at equal intervals, a negative pressure head module is slidably inserted into the mounting hole, a communication hole is formed in the inner wall of the main cavity at a position corresponding to the mounting hole, the communication hole is in communication with the corresponding mounting hole, a long rod is slidably connected to the longitudinal row frame, and the long rod is used to support the plurality of negative pressure head modules;

[0008] A plurality of gas valve assemblies are provided, one suction row assembly is correspondingly provided with one gas valve assembly, the plurality of gas valve assemblies are fixedly installed at one end of the connecting frame, one end of the plurality of air pipes one is in communication with the top end of the plurality of gas valve assemblies, and the gas valve assembly and the corresponding connecting port are in communication with an air pipe three.

[0009] Further in, both ends of the longitudinal frame are fixedly connected with support frame one, the top end of the support frame one is fixedly connected with a support rod, two limiting grooves are arranged on the limiting seat, the support frame one is slidably connected with the adjacent limiting seat, a transverse partition rod is arranged on one side of the bracket, and the transverse partition rod is used for supporting the support rod.

[0010] Further in, both ends of the longitudinal frame are fixedly connected with support frame one, the top end of the support frame one is fixedly connected with a support rod, two limiting grooves are arranged on the limiting seat, the support frame one is slidably connected with the adjacent limiting seat, a transverse partition rod is arranged on one side of the bracket, and the transverse partition rod is used for supporting the support rod.

[0011] Further in, both ends of the longitudinal frame are fixedly connected with support frame one, the top end of the support frame one is fixedly connected with a support rod, two limiting grooves are arranged on the limiting seat, the support frame one is slidably connected with the adjacent limiting seat, a transverse partition rod is arranged on one side of the bracket, and the transverse partition rod is used for supporting the support rod.

[0012] Further in, both ends of the longitudinal frame are fixedly connected with support frame one, the top end of the support frame one is fixedly connected with a support rod, two limiting grooves are arranged on the limiting seat, the support frame one is slidably connected with the adjacent limiting seat, a transverse partition rod is arranged on one side of the bracket, and the transverse partition rod is used for supporting the support rod.

[0013] Further in, both ends of the longitudinal frame are fixedly connected with support frame one, the top end of the support frame one is fixedly connected with a support rod, two limiting grooves are arranged on the limiting seat, the support frame one is slidably connected with the adjacent limiting seat, a transverse partition rod is arranged on one side of the bracket, and the transverse partition rod is used for supporting the support rod.

[0014] Further in, both ends of the longitudinal frame are fixedly connected with support frame one, the top end of the support frame one is fixedly connected with a support rod, two limiting grooves are arranged on the limiting seat, the support frame one is slidably connected with the adjacent limiting seat, a transverse partition rod is arranged on one side of the bracket, and the transverse partition rod is used for supporting the support rod.

[0015] Further in, both ends of the longitudinal frame are fixedly connected with support frame one, the top end of the support frame one is fixedly connected with a support rod, two limiting grooves are arranged on the limiting seat, the support frame one is slidably connected with the adjacent limiting seat, a transverse partition rod is arranged on one side of the bracket, and the transverse partition rod is used for supporting the support rod.

[0016] Further in: one end top surface of the longitudinal frame is fixedly provided with a pneumatic piston rod two, the moving end of the pneumatic piston rod two is fixedly connected with one end of the long rod, and one end of the pneumatic piston rod two is communicated with the long rod through a hose.

[0017] Further in: one end of the connecting frame is provided with an open slot, and the open slot is used for facilitating the communication of the plurality of hoses through the connecting frame and the collecting row one.

[0018] Compared with the prior art, the beneficial effects of the present application are:

[0019] 1. By arranging a plurality of adsorption row assemblies, the outermost two adsorption row assemblies of the plurality of adsorption row assemblies in contact with the carton are not communicated with the collecting row two, and the outermost two adsorption row assemblies of the plurality of adsorption row assemblies on the connecting frame are only partially in contact with the carton in the left and right directions, which causes the negative pressure head modules on the above two adsorption row assemblies to easily leak during adsorption, while the bottom ends of the negative pressure head modules on the other adsorption row assemblies of the plurality of adsorption row assemblies are completely attached to the carton for adsorption, avoiding leakage and maintaining the vacuum degree of the system during adsorption.

[0020] 2. By arranging a plurality of negative pressure head modules, the two outermost leather bowls of the plurality of leather bowls in contact with the carton are in normal pressure state, and the other leather bowls are used for adsorbing the carton, so that the plurality of leather bowls generating negative pressure are completely attached to the carton, thereby avoiding or reducing the pressure leakage of the leather bowls, and the outermost leather bowls of the plurality of leather bowls in contact with the carton do not generate negative pressure, so that only the middle part of the leather bowls in contact with the carton generate negative pressure, thereby adsorbing the carton, avoiding the leather bowls as the pressure leakage point, and facilitating the maintenance of negative pressure during adsorption and stable adsorption. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is the overall structure schematic diagram of the present application;

[0022] Figure 2 It is the overall use state structure schematic diagram of the present application;

[0023] Figure 3 It is the overall side view structure schematic diagram of the present application;

[0024] Figure 4 It is the bracket structure schematic diagram of the present application;

[0025] Figure 5 It is the air valve assembly structure schematic diagram of the present application;

[0026] Figure 6 It is the adsorption row assembly structure schematic diagram of the present application;

[0027] Figure 7 is the internal structure schematic diagram of longitudinal frame in the application;

[0028] Figure 8 is the negative pressure head module structure schematic diagram in the application.

[0029] In the figure: 100, connecting frame; 101, open slot; 110, bracket; 111, limiting seat; 112, limiting slot; 120, pneumatic piston rod one; 130, transverse partition rod; 140, collection row one; 150, collection row two; 151, air pipe one; 160, air pump module; 200, adsorption row assembly; 210, longitudinal frame; 211, main cavity; 212, communication hole; 213, butt joint; 220, support frame one; 221, support rod; 230, long rod; 231, support frame two; 232, protruding part; 240, negative pressure head module; 241, outer pipe sleeve; 242, inner pipe sleeve; 243, alignment hole; 244, output port; 245, leather bowl; 250, pneumatic piston rod two; 260, air pipe two; 300, air valve assembly; 310, core rod; 311, positioning hole one; 312, positioning hole two; 320, sleeve rod; 321, connecting port one; 322, connecting port two; 400, air pipe three. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the application will be clearly and completely described below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, rather than all the embodiments of the application. Based on the embodiments in the application, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the application.

[0031] Please refer to Figures 1-6In the embodiment of the present application, a stacking unit for carton stacking machine comprises a connecting frame 100, a suction row assembly 200 and a gas valve assembly 300. The connecting frame 100 is used for interfacing with a mechanical hand. Both ends of the connecting frame 100 are fixedly installed with brackets 110. The brackets 110 are equidistantly fixedly connected with limiting seats 111. One end of the connecting frame 100 is fixedly installed with a collection row two 150. The bottom end of the collection row two 150 is fixedly communicated with a plurality of air pipes one 151. The number of the suction row assembly 200 is multiple. The multiple suction row assemblies 200 are arranged side by side. The suction row assembly 200 comprises a longitudinal row frame 210. One side of the longitudinal row frame 210 is provided with a main cavity 211. One end of the longitudinal row frame 210 is fixedly communicated with a docking port 213. The top surface of the longitudinal row frame 210 is equidistantly provided with a plurality of mounting holes. Negative pressure head modules 240 are slidingly inserted into the mounting holes. The inner wall of the main cavity 211 is provided with a plurality of communication holes 212 corresponding to the positions of the mounting holes. The communication holes 212 are communicated with the corresponding mounting holes. The longitudinal row frame 210 is slidingly connected with a long rod 230. The long rod 230 is used for supporting the multiple negative pressure head modules 240. The number of the gas valve assembly 300 is multiple. The multiple gas valve assemblies 300 are respectively corresponding to one suction row assembly 200. The multiple gas valve assemblies 300 are fixedly installed at one end position of the connecting frame 100. One end of the multiple air pipes one 151 is respectively communicated with the top end of the multiple gas valve assemblies 300. The gas valve assembly 300 is communicated with the corresponding docking port 213 through an air pipe three 400. Both ends of the longitudinal row frame 210 are fixedly connected with support frames one 220. The top end of the support frame one 220 is fixedly connected with a support rod 221. Two limiting grooves 112 are arranged on the limiting seat 111. The support frame one 220 is slidingly connected with the adjacent limiting seat 111. One side of the bracket 110 is provided with a cross partition rod 130. The cross partition rod 130 is used for supporting the support rod 221.

[0032] Specifically, initially, the crossbar 130 is released from contact with the plurality of support rods 221, and the manipulator drives the connecting frame 100 to move downward, and the plurality of suction row assemblies 200 in contact with the top end of the paper are pushed to move upward relative to the connecting frame 100, and one of the upwardly moved suction row assemblies 200 is communicated with the next suction row assembly 200 through the corresponding air valve assembly 300, so that the negative pressure is provided in the next main cavity 211 through the collection row two 150, and thus the communication between the two outermost suction row assemblies 200 in contact with the carton and the collection row two 150 is controlled by the more outer upwardly moved suction row assemblies 200, so that the two outermost suction row assemblies 200 in contact with the carton are not communicated with the collection row two 150, and the two outermost suction row assemblies 200 in the plurality of upwardly moved suction row assemblies 200 may only be partially in contact with the carton in the left-right direction, resulting in that the negative pressure head module 240 on the above two suction row assemblies 200 is prone to leakage during suction, and the bottom end of the negative pressure head module 240 on the other suction row assemblies 200 in the plurality of upwardly moved suction row assemblies 200 can be completely attached to the carton (not considering the front-back direction) to avoid leakage, thereby realizing stable suction during suction of cartons of different sizes, reducing the risk of pressure loss during suction, and facilitating the maintenance of the vacuum degree of the system.

[0033] Embodiment one

[0034] As Figures 4-8As shown, in the embodiment, the two end positions of the cross partition rod 130 are provided with pneumatic piston rods one 120, the pneumatic piston rods one 120 are fixedly installed on the connecting frame 100, the movable end of the pneumatic piston rods one 120 is fixedly connected with the adjacent cross partition rod 130, the connecting frame 100 is fixedly installed with the collection row one 140 and the air pump module 160, the output end of the air pump module 160 is communicated with the collection row one 140, the collection row one 140 is communicated with the plurality of pneumatic piston rods one 120 through the hose, the air valve assembly 300 includes a sleeve rod 320, the sleeve rod 320 is fixedly connected between the connecting frame 100, the inner wall of the sleeve rod 320 is slidably sleeved with a core rod 310, the outer side wall of the sleeve rod 320 is provided with a connecting port one 321 and a connecting port two 322, one end of the connecting port one 321 is communicated with the air pipe three 400, the connecting port two 322 is communicated with the corresponding air pipe one 151, the outer side wall of the core rod 310 is provided with a positioning hole one 311 and a positioning hole two 312, the core rod 310 is hollow and the two ends are closed, the bottom end of the core rod 310 is rotatably connected with the adjacent support rod 221, the plurality of adsorption row assemblies 200 and the plurality of air valve assemblies 300 are evenly divided into two groups, and the number of air valve assemblies 300 in the same group is one less than the number of adsorption row assemblies 200, the bottom end of the core rod 310 is sleeved with the support rod 221 in the previous adsorption row assembly 200 in the same group, and the connecting port one 321 is communicated with the docking port 213 on the next adsorption row assembly 200 in the same group through the air pipe three 400.

[0035] In the embodiment, when one adsorption row assembly 200 moves upward relative to the connecting frame 100, the adsorption row assembly 200 drives the core rod 310 to move upward through the support frame one 220 and the support rod 221, so that the positioning hole one 311 moves upward to align with the connecting port one 321, the positioning hole two 312 aligns with the connecting port two 322, so that the connecting port one 321 and the connecting port two 322 are communicated, thereby making the collection row two 150 and the next position longitudinal row frame 210 communicated, the phase of the next position adsorption row assembly 200 continues to make the next longitudinal row frame 210 communicated with the collection row two 150, so that the outermost one of the plurality of upward moving longitudinal row frames 210 in the same group is in a disconnected state with the collection row two 150, after the connecting frame 100 is relatively moved upward to the position, the cross partition rod 130 is inserted into the plurality of support rods 221, so that the cross partition rod 130 supports the support rod 221 after moving upward, avoiding the downward falling of the longitudinal row frame 210 after moving upward, and limiting the position of the plurality of longitudinal row frames 210.

[0036] Embodiment two

[0037] On the basis of embodiment one, in order to make up for the fact that in embodiment one, when the length of the carton is less than the length of the longitudinal row frame 210, the partial negative pressure head modules 240 at the two ends of the adsorption row assembly 200 are empty and in a leakage state, so as to enhance the adsorption stability.

[0038] As Figures 3-8 shown, in this embodiment, the bottom end of the negative pressure head module 240 is installed with a leather cup 245, both ends of the outer side wall of the negative pressure head module 240 are provided with a limiting ring, the outer side wall of the negative pressure head module 240 is provided with an alignment hole 243, the alignment hole 243 is used for aligning with the communication hole 212, the inner wall of the negative pressure head module 240 is fixedly installed with an inner tube sleeve 242, the top end of the outer side wall of the negative pressure head module 240 is provided with an output port 244, a plurality of negative pressure head modules 240 are equal to two groups, and the output port 244 on one negative pressure head module 240 in the same group is communicated with the top end of the inner tube sleeve 242 on the next negative pressure head module 240 through a breather pipe two 260, while the output port 244 in the last position in the same group is in a closed state to avoid the last output port 244 becoming a leakage point, the top end of the negative pressure head module 240 is fixedly connected with an outer tube sleeve 241, the corresponding position of the long rod 230 to the negative pressure head module 240 is fixedly connected with a support frame two 231, the middle position of the support frame two 231 is provided with a protruding part 232, the protruding part 232 is used for supporting the outer tube sleeve 241, the top surface of one end of the vertical row frame 210 is fixedly installed with a pneumatic piston rod two 250, the moving end of the pneumatic piston rod two 250 is fixedly connected with one end of the long rod 230, one end of the pneumatic piston rod two 250 is communicated with the collection row one 140 through a hose, one end of the connecting frame 100 is provided with an open slot 101, the open slot 101 is used for facilitating a plurality of hoses to pass through the connecting frame 100 and communicate with the collection row one 140.

[0039] In the specific implementation, taking the longitudinal row frame 210 in communication with the second collection row 150 as an example, the up and down movement of the negative pressure head module 240 on the longitudinal row frame 210 is limited by the setting of the limiting ring. When the negative pressure head module 240 moves upward relative to the longitudinal row frame 210 to the highest position, the positioning hole 243 is aligned with the communication hole 212. When the negative pressure head module 240 moves downward relative to the longitudinal row frame 210 to the lowest position, the positioning hole 243 is offset from the communication hole 212. Therefore, when the connecting frame 100 moves downward, the negative pressure head module 240 in contact with the carton is supported and moves upward relative to the longitudinal row frame 210. The second collection row 150 provides negative pressure to the main cavity 211. The main cavity 211 provides negative pressure to the negative pressure head module 240 through the communication hole 212. One negative pressure head module 240 provides negative pressure to the inner tube sleeve 242 at the next position through the air pipe two 260, so that the leather bowl 245 at the next position adsorbs the carton, so that among the multiple leather bowls 245 in contact with the carton, the two leather bowls 245 at the edge are in normal pressure state, and the other leather bowls 245 adsorb the carton. After the connecting frame 100 moves downward to the position, the pneumatic piston rod two 250 drives the long rod 230 to move forward. The protruding part 232 in the long rod 230 is inserted below the upwardly moved outer tube sleeve 241, avoiding the downward falling of the upwardly moved negative pressure head module 240, so that the multiple leather bowls 245 generating negative pressure are completely attached to the carton, thereby avoiding or reducing the pressure relief of the leather bowl 245. Through the setting of the air pump module 160 and the first collection row 140, the air pump module 160 provides air and exhausts air in the first collection row 140, so as to realize the expansion and contraction control of the multiple pneumatic piston rod two 250 and the pneumatic piston rod one 120.

[0040] In the present application, the air pump module 160 is an electric diaphragm vacuum pump, the output of which can be switched between positive pressure and negative pressure, facilitating the expansion and contraction control of the pneumatic piston rod one 120 and the pneumatic piston rod two 250. The electric diaphragm vacuum pump is a prior art, which will not be described here.

[0041] It is obvious to those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0042] Furthermore, it should be understood that although the specification is described in terms of embodiments, not every embodiment includes every feature or implementation described herein. The specification can include implicit combinations of explicitly mentioned features and / or implicit combinations of implicitly mentioned features. Such combinations are also expressly included within the scope of the specification and an embodiment.

Claims

1. A palletizing unit for a carton palletizer, characterized in that, include: A connecting frame (100) is used to dock with a robot arm. Both ends of the connecting frame (100) are fixedly installed with brackets (110). Limit seats (111) are fixedly connected at equal intervals on the brackets (110). A collection row two (150) is fixedly installed at one end of the connecting frame (100). Multiple air pipes (151) are fixedly connected to the bottom end of the collection row two (150). There are multiple adsorption row components (200), and the multiple adsorption row components (200) are arranged side by side. Each adsorption row component (200) includes a longitudinal frame (210). A main cavity (211) is opened on one side of the longitudinal frame (210). A docking interface (213) is fixedly connected to one end of the longitudinal frame (210). Multiple mounting holes are opened at equal intervals on the top surface of the longitudinal frame (210), and a negative pressure head module (240) is slidably inserted into the mounting holes. A connecting hole (212) is opened on the inner wall of the main cavity (211) at the position of the multiple mounting holes. The connecting hole (212) is connected to the corresponding mounting hole. A long rod (230) is slidably connected on the longitudinal frame (210). The long rod (230) is used to support the multiple negative pressure head modules (240). There are multiple air valve assemblies (300), each of which corresponds to an adsorption outlet assembly (200). The multiple air valve assemblies (300) are fixedly installed at one end of the connecting frame (100). One end of each of the multiple air pipes (151) is connected to the top of the multiple air valve assemblies (300). Each air valve assembly (300) is connected to its corresponding interface (213) by an air pipe (400).

2. The palletizing unit for a carton palletizer according to claim 1, characterized in that, Both ends of the longitudinal frame (210) are fixedly connected to a support frame (220), and the top of the support frame (220) is fixedly connected to a support rod (221). The limiting seat (111) has two limiting grooves (112). The support frame (220) is slidably connected to the adjacent limiting seat (111). A transverse partition (130) is provided on one side of the bracket (110), and the transverse partition (130) is used to support the support rod (221).

3. A palletizing unit for a carton palletizer according to claim 2, characterized in that, Pneumatic piston rods (120) are provided at both ends of the transverse partition (130). The pneumatic piston rods (120) are fixedly installed on the connecting frame (100). The movable end of the pneumatic piston rods (120) is fixedly connected to the adjacent transverse partition (130). A collection row (140) and an air pump module (160) are fixedly installed on the connecting frame (100). The output end of the air pump module (160) is connected to the collection row (140). The collection row (140) and the multiple pneumatic piston rods (120) are all connected by flexible hoses.

4. A palletizing unit for a carton palletizer according to claim 1, characterized in that, The valve assembly (300) includes a sleeve (320), which is fixedly connected to the connecting frame (100). A core rod (310) is slidably sleeved on the inner wall of the sleeve (320). The outer wall of the sleeve (320) is provided with a connection port one (321) and a connection port two (322). One end of the connection port one (321) is connected to the vent pipe three (400), and the connection port two (322) is connected to the corresponding vent pipe one (151). The outer wall of the core rod (310) is provided with a positioning hole one (311) and a positioning hole two (312). The core rod (310) is hollow inside and closed at both ends. The bottom end of the core rod (310) is rotatably connected to the adjacent support rod (221).

5. A palletizing unit for a carton palletizer according to claim 4, characterized in that, The multiple adsorption row assemblies (200) and multiple air valve assemblies (300) are divided into two groups on average, and the number of air valve assemblies (300) in the same group is one less than the number of adsorption row assemblies (200). The bottom end of the core rod (310) is sleeved with the support rod (221) in the previous adsorption row assembly (200) in the same group, and the connection port one (321) is connected to the docking port (213) on the next adsorption row assembly (200) in the same group through the air pipe three (400).

6. A palletizing unit for a carton palletizer according to claim 1, characterized in that, The bottom end of the negative pressure head module (240) is equipped with a leather cup (245). Both ends of the outer side wall of the negative pressure head module (240) are provided with limit rings. The outer side wall of the negative pressure head module (240) is provided with an alignment hole (243), which is used to align with the connecting hole (212).

7. A palletizing unit for a carton palletizer according to claim 6, characterized in that, The inner wall of the negative pressure head module (240) is fixedly installed with an inner tube sleeve (242). The outer side wall of the top of the negative pressure head module (240) is provided with an output port (244). The negative pressure head modules (240) are in two groups of equal quantity. In the same group, the output port (244) on one negative pressure head module (240) is connected to the top of the inner tube sleeve (242) on the next negative pressure head module (240) by a second ventilation pipe (260).

8. A palletizing unit for a carton palletizer according to claim 7, characterized in that, An outer sleeve (241) is fixedly connected to one side of the top of the negative pressure head module (240). A support frame (231) is fixedly connected to the long rod (230) at the position corresponding to the negative pressure head module (240). A protrusion (232) is provided in the middle of the support frame (231), and the protrusion (232) is used to support the outer sleeve (241).

9. A palletizing unit for a carton palletizer according to claim 7, characterized in that, A pneumatic piston rod 2 (250) is fixedly installed on the top surface of one end of the longitudinal frame (210). The moving end of the pneumatic piston rod 2 (250) is fixedly connected to one end of the long rod (230). A flexible hose is connected to the front of the collection row 1 (140).

10. A palletizing unit for a carton palletizer according to claim 1, characterized in that, One end of the connecting frame (100) is provided with an open slot (101), which is used to facilitate multiple hoses to pass through the connecting frame (100) and communicate with the first collection row (140).

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