Paper bag bending mechanism of bag making machine

Abstract

The utility model discloses a paper bag bending mechanism of a bag making machine, which comprises a conveying component, a bending component and a bending component, the first shape pressing assembly is provided with a first pressing wheel located above the conveying plane, and the first pressing wheel is conical; the second shape pressing assembly is provided with a second pressing wheel located above the conveying plane; the shaping assembly is located on the rear side of the first pressing and shaping assembly and the rear side of the second pressing and shaping assembly in the conveying direction of the paperboard blank and provided with a pressing rod located above the conveying plane, and the pressing rod continuously acts on the top side of a second paperboard. The conical first pressing wheel is used for replacing a circular pressing wheel, when the fold of the folded paperboard passes through the lower portion of the first pressing wheel, the conical surface of the first pressing wheel acts on the top side of the second paperboard, an included angle is formed between the second paperboard and the first paperboard, the first paperboard close to the fold is prevented from being attached to the second paperboard, and the paperboard folding efficiency is improved. Therefore, the condition that the honeycomb paper at the creases is stretched and deformed is reduced, and the forming quality of the paper bag is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of kraft paper bag bending and folding, in particular to a paper bag bending mechanism of a bag making machine. Background Art

[0002] A kraft paper bag generally includes a lower layer of kraft paper, a honeycomb paper, and an upper layer of kraft paper stacked in sequence. In the prior art, a crease is formed at the midline of a paperboard blank having a three-layer structure, and a first paperboard and a second paperboard symmetrically distributed about the folding axis are obtained by folding, and then a circular roller tangent to the conveying plane is used to act on the top side of the second paperboard. This pressing method has the following disadvantages: under the action of the circular roller, the first paperboard and the second paperboard are attached to each other at the inner side near the crease, which easily causes the honeycomb paper located there to stretch and deform, thereby affecting the forming quality of the paper bag. Utility Model Content

[0003] In order to overcome the shortcomings and deficiencies in the prior art, the utility model aims to provide a paper bag bending mechanism for a bag making machine.

[0004] To achieve the above purpose, the technical solution of the utility model is as follows:

[0005] The paper bag bending mechanism of the bag making machine comprises:

[0006] A conveying assembly having a horizontally disposed conveying plane;

[0007] A first pressing assembly, comprising a first pressing wheel located above the conveying plane, wherein the first pressing wheel is conical;

[0008] The second pressing component comprises a second pressing wheel located above the conveying plane; before the paperboard blank passes through the first pressing wheel and the second pressing wheel, the paperboard blank is symmetrically folded to form a crease, as well as a first paperboard and a second paperboard located on both sides of the crease, the conveying plane acts on the bottom side of the first paperboard, the first pressing wheel is located at the crease, and its conical surface continuously acts on the top side of the second paperboard, and the second pressing wheel is located at the opening, and its wheel surface continuously acts on the top side of the second paperboard;

[0009] The shaping component is located at the rear side of the first shaping component and the second shaping component along the conveying direction of the cardboard blank, and has a pressure rod located above the conveying plane, and the pressure rod continuously acts on the top side of the second cardboard.

[0010] Preferably, it also includes:

[0011] A left wall panel, arranged on the left side of the conveying assembly;

[0012] A right wall panel, arranged on the right side panel of the conveying assembly;

[0013] A horizontal slide rail, one end of which is connected to the left wall panel and the other end of which is connected to the right wall panel;

[0014] A first sliding structure, the top end of which is slidably connected to the horizontal slide rail, the bottom end of which is connected to the first pressing assembly, and can drive the first pressing wheel to slide in a horizontal direction relative to the conveying plane;

[0015] A second sliding structure, the top end of which is slidably connected to the horizontal slide rail, the bottom end of which is connected to the second pressing assembly, and can drive the second pressing wheel to slide in the horizontal direction relative to the conveying plane;

[0016] The third sliding structure has a top end slidably connected to the horizontal slide rail and a bottom end connected to the shaping component, and can drive the pressure rod to slide in a horizontal direction relative to the conveying plane.

[0017] Preferably, the first sliding structure comprises:

[0018] A first guide rod, a first upper slider is provided at the top end thereof, and the first upper slider is slidably matched with the horizontal slide rail; the first pressure wheel is provided at the bottom end of the first guide rod;

[0019] The second sliding structure comprises:

[0020] A second guide rod, the top of which is provided with a second upper slider, the second upper slider is slidably matched with the horizontal slide rail; the second pressure wheel is rotatably provided at the bottom end of the second guide rod;

[0021] The third sliding structure comprises:

[0022] The third guide rod has a third upper slider at the top, and the third upper slider is slidably matched with the horizontal slide rail; the pressure rod is arranged at the bottom end of the third guide rod.

[0023] Preferably, the horizontal slide rail is a cylindrical rod-shaped body;

[0024] A pair of first claws and a first locking member acting on the first claws are provided at the end of the first upper slider, the pair of first claws are respectively slidably matched with the horizontal slide rail, and the first locking member enables the pair of first claws to clamp the horizontal slide rail;

[0025] A pair of second claws and a second locking member acting on the second claws are provided at the end of the second upper slider, the pair of second claws are respectively slidably matched with the horizontal slide rail, and the second locking member can enable the pair of second claws to clamp the horizontal slide rail;

[0026] A pair of third claws and a third locking member acting on the third claws are provided at the end of the third upper slider, and the pair of third claws are respectively slidably matched with the horizontal slide rail, and the third locking member can enable the pair of third claws to clamp the horizontal slide rail.

[0027] Preferably, a pair of the first claws are respectively provided with a first semicircular notch on the inner side and a first threaded hole on the outer end, and the first locking member comprises a first screw and a first nut, the first screw cooperates with the first threaded hole and is locked by the first nut;

[0028] A pair of the second claws are respectively provided with a second semicircular notch on the inner side and a second threaded hole on the outer end, the second locking member comprises a second screw and a second nut, the second screw cooperates with the second threaded hole and is locked by the second nut;

[0029] A pair of third claws are respectively provided with a third semicircular notch on the inner side and a third threaded hole on the outer end. The third locking member includes a third screw and a third nut. The third screw cooperates with the third threaded hole and is locked by the third nut.

[0030] Preferably, the first guide rod, the second guide rod and the third guide rod are all perpendicular to the horizontal slide rail;

[0031] The first upper slider is provided with a pair of fourth claws and a fourth locking member acting on the fourth claws at an end away from the first claws, the first guide rod can be slidably matched with the pair of fourth claws, and the fourth locking member can enable the pair of fourth claws to clamp the first guide rod;

[0032] The second upper slider is provided with a pair of fifth claws and a fifth locking member acting on the fifth claws at one end away from the second claws, the second guide rod can be slidably matched with the pair of fifth claws, and the fifth locking member can enable the pair of fifth claws to clamp the second guide rod;

[0033] The third upper slider is provided with a pair of sixth claws and a sixth locking member acting on the sixth claws at an end away from the third claws. The third guide rod can slide with the pair of sixth claws, and the sixth locking member can enable the pair of sixth claws to clamp the third guide rod.

[0034] Preferably, a pair of the fourth claws are respectively provided with fourth semicircular notches on their inner sides and fourth threaded holes on their outer ends, and the fourth locking member comprises a fourth screw and a fourth nut, the fourth screw cooperates with the fourth threaded hole and is locked by the fourth nut;

[0035] A pair of fifth claws are respectively provided with fifth semicircular notches on their inner sides and fifth threaded holes on their outer ends; the fifth locking member comprises a fifth screw and a fifth nut; the fifth screw cooperates with the fifth threaded hole and is locked by the fifth nut;

[0036] A pair of the sixth claws are respectively provided with a sixth semicircular notch on the inner side and a sixth threaded hole on the outer end. The sixth locking member includes a sixth screw rod and a sixth nut. The sixth screw rod cooperates with the sixth threaded hole and is locked by the sixth nut.

[0037] Preferably, the first pressing component further comprises:

[0038] A pair of first lower sliders, comprising a first sliding portion and a first rotating portion connected to each other, wherein the first rotating portion can rotate relative to the first sliding portion, and the first guide rods correspond to the first lower sliders one by one and are slidably matched with the first sliding portion;

[0039] a fourth guide rod, wherein the first pressing wheel is rotatably disposed at an end of the fourth guide rod, the fourth guide rod is connected to a pair of the first rotating parts, and the pair of the first sliding parts are slidably matched with the first guide rod in the vertical direction so that the pair of the first rotating parts form a height difference in the vertical direction;

[0040] The shaping component also includes:

[0041] A pair of third lower sliding blocks include a connected third sliding portion and a third rotating portion, the third rotating portion can rotate relative to the third sliding portion, the third guide rod corresponds to the third lower sliding block one by one, and slidably cooperates with the third sliding portion; the pressure rod includes a connecting horizontal section and an inclined section, the horizontal section is connected to the pair of third rotating portions, the pair of third sliding portions slidably cooperates with the third guide rod in the vertical direction, so that the pair of third rotating portions form a height difference in the vertical direction, and the inclined section can act on the top side of the second paperboard.

[0042] Preferably, the first sliding portion is provided with a pair of seventh claws and a seventh locking member acting on the seventh claws at one end away from the first rotating portion, the first guide rod can be slidably matched with the pair of seventh claws, and the seventh locking member can enable the pair of seventh claws to clamp the first guide rod;

[0043] The first rotating part is provided with a pair of eighth claws and an eighth locking member acting on the eighth claws at one end away from the first sliding part, the fourth guide rod can be slidably matched with the pair of eighth claws, and the eighth locking member can enable the pair of eighth claws to clamp the fourth guide rod;

[0044] The third sliding portion is provided with a pair of ninth claws and a ninth locking member acting on the ninth claws at one end away from the third rotating portion, the third guide rod can be slidably matched with the pair of ninth claws, and the ninth locking member can enable the pair of ninth claws to clamp the third guide rod;

[0045] The third rotating part is provided with a pair of tenth claws and a tenth locking member acting on the tenth claws at an end away from the third sliding part. The horizontal section can slide with the pair of tenth claws, and the tenth locking member can enable the pair of tenth claws to clamp the horizontal section.

[0046] Preferably, a pair of the seventh claws are respectively provided with a seventh semicircular notch on the inner side and a seventh threaded hole on the outer end, and the seventh locking member comprises a seventh screw rod and a seventh nut, and the seventh screw rod cooperates with the seventh threaded hole and is locked by the seventh nut;

[0047] The inner sides of the pair of eighth claws are respectively provided with eighth semicircular notches, and the outer ends are respectively provided with eighth threaded holes, and the eighth locking member comprises an eighth screw rod and an eighth nut, and the eighth screw rod cooperates with the eighth threaded hole and is locked by the eighth nut;

[0048] A pair of the ninth claws are provided with ninth semicircular notches on their inner sides and ninth threaded holes on their outer ends, respectively; the ninth locking member comprises a ninth screw rod and a ninth nut; the ninth screw rod cooperates with the ninth threaded hole and is locked by the ninth nut;

[0049] A pair of the tenth claws are respectively provided with a tenth semicircular notch on the inner side and a tenth threaded hole on the outer end. The tenth locking member includes a tenth screw rod and a tenth nut. The tenth screw rod cooperates with the tenth threaded hole and is locked by the tenth nut.

[0050] The utility model has the beneficial effects of: using a conical first pressing wheel to replace a circular pressing wheel, when the crease of the folded paperboard passes under the first pressing wheel, the conical surface of the pressing wheel acts on the top side of the second paperboard, so that the second paperboard forms an angle with the first paperboard, avoiding the first paperboard and the second paperboard near the crease to fit together, thereby reducing the tensile deformation of the honeycomb paper at the crease, which is beneficial to improving the forming quality of the paper bag; on the other hand, the pressure rod of the shaping component continuously acts on the top side of the second paperboard, reducing the situation that the second paperboard is tilted relative to the first paperboard before entering the sealing device. BRIEF DESCRIPTION OF THE DRAWINGS

[0051] Figure 1 It is a schematic diagram of the structure of an embodiment of the utility model;

[0052] Figure 2This is an exploded view of the components of an embodiment of the present invention.

[0053] As shown in the figure:

[0054] 1-first pressing assembly, 11-first pressing wheel, 12-first lower slider, 13-fourth guide rod;

[0055] 2- second pressing wheel;

[0056] 3-forming component, 31-pressing rod, 311-horizontal section, 312-inclined section, 32-third lower sliding block;

[0057] 4-horizontal slide rail, 41-left wall panel, 42-right wall panel;

[0058] 5-first sliding structure, 51-first guide rod, 52-first upper sliding block;

[0059] 6-second sliding structure, 61-second guide rod, 62-second upper sliding block;

[0060] 7-third sliding structure, 71-third guide rod, 72-third upper sliding block. DETAILED DESCRIPTION

[0061] The following is a detailed explanation of the implementation of the present invention in conjunction with the accompanying drawings. The accompanying drawings are for reference and illustration only and do not constitute a limitation on the scope of patent protection of the present invention.

[0062] See also Figure 1-Figure 2 In this embodiment, the paper bag bending mechanism of the bag making machine includes:

[0063] A conveying assembly having a horizontally disposed conveying plane;

[0064] A first pressing assembly 1, comprising a first pressing wheel 11 located above the conveying plane, wherein the first pressing wheel 11 is conical;

[0065] The second pressing component has a second pressing wheel 2 located above the conveying plane; before the cardboard blank passes through the first pressing wheel 11 and the second pressing wheel 2, the cardboard blank is symmetrically folded to form a crease, as well as a first cardboard and a second cardboard located on both sides of the crease, the conveying plane acts on the bottom side of the first cardboard, the first pressing wheel 11 is located at the crease, and its conical surface continuously acts on the top side of the second cardboard, and the second pressing wheel 2 is located at the opening, and its wheel surface continuously acts on the top side of the second cardboard;

[0066] The shaping assembly 3 is located at the rear side of the first shaping assembly 1 and the second shaping assembly along the conveying direction of the cardboard blank, and has a pressure rod 31 located above the conveying plane, and the pressure rod 31 continuously acts on the top side of the second cardboard.

[0067] In this embodiment, the conveying component is a mesh belt conveyor (not shown in the figure), the feed end of the mesh belt conveyor is connected to the gluing and compounding mechanism (not shown in the figure), and the output end is connected to the sealing mechanism (not shown in the figure). The two layers of kraft paper and the single layer of honeycomb paper are formed into paperboard after gluing and compounding, and are symmetrically folded with the center line (length direction) of the mesh belt conveyor as the axis before being conveyed to the bending mechanism. Under the action of the first pressing wheel 11 and the second pressing wheel 2, the paper tapes that subsequently pass through the first pressing wheel 11 and the second pressing wheel 2 can be automatically bent.

[0068] Preferably, it also includes:

[0069] A left wall panel 41 is provided on the left side of the conveying assembly;

[0070] A right wall panel 42, provided on the right side panel of the conveying assembly;

[0071] A horizontal slide rail 4, one end of which is connected to the left wall panel 41 and the other end of which is connected to the right wall panel 42;

[0072] A first sliding structure 5, the top end of which is slidably connected to the horizontal slide rail 4, the bottom end of which is connected to the first pressing assembly 1, and can drive the first pressing wheel 11 to slide in the horizontal direction relative to the conveying plane;

[0073] A second sliding structure 6, the top end of which is slidably connected to the horizontal slide rail, the bottom end of which is connected to the second pressing assembly, and can drive the second pressing wheel 2 to slide in the horizontal direction relative to the conveying plane;

[0074] The third sliding structure 7 has a top end slidably connected to the horizontal slide rail 4 and a bottom end connected to the shaping assembly, and can drive the pressure rod 31 to slide in a horizontal direction relative to the conveying plane.

[0075] In this embodiment, the first sliding structure 5 is used to adjust the relative position of the first pressure wheel 11 in the width direction of the conveying assembly, the second sliding structure 6 is used to adjust the relative position of the second pressure wheel 2 in the width direction of the conveying assembly, and the third sliding structure 7 is used to adjust the relative position of the pressure rod 31 in the width direction of the conveying assembly, so that more wide cardboards can be adapted.

[0076] Preferably, the first sliding structure 5 comprises:

[0077] The first guide rod 51 has a first upper slider 52 at the top, and the first upper slider 52 is slidably matched with the horizontal slide rail 4; the first pressing wheel 11 is arranged at the bottom end of the first guide rod 51;

[0078] The second sliding structure 6 comprises:

[0079] The second guide rod 61 has a second upper slider 62 at the top, and the second upper slider 62 is slidably matched with the horizontal slide rail 4; the second pressing wheel 2 is rotatably arranged at the bottom end of the second guide rod 61;

[0080] The third sliding structure 7 comprises:

[0081] The third guide rod 71 has a third upper slider 72 at its top end, and the third upper slider 72 is slidably matched with the horizontal slide rail 4 ; the pressing rod 31 is disposed at the bottom end of the third guide rod 71 .

[0082] Preferably, the horizontal slide rail 4 is a cylindrical rod-shaped body;

[0083] A pair of first claws and a first locking member acting on the first claws are provided at the end of the first upper slider 52. The pair of first claws are respectively slidably matched with the horizontal slide rail 4. The first locking member enables the pair of first claws to clamp the horizontal slide rail 4.

[0084] The end of the second upper slider 62 is provided with a pair of second claws and a second locking member acting on the second claws, the pair of second claws are respectively slidably matched with the horizontal slide rail 4, and the second locking member can enable the pair of second claws to clamp the horizontal slide rail 4;

[0085] The end of the third upper slider 72 is provided with a pair of third claws and a third locking member acting on the third claws. The pair of third claws are respectively slidably matched with the horizontal slide rail 4. The third locking member can enable the pair of third claws to clamp the horizontal slide rail 4.

[0086] In this embodiment, a locking member is used to lock or release a pair of claws so that they can slide relative to or remain relatively still with the round rod-shaped body. The structures and working principles of all claws and locking members in this embodiment are the same and will not be described in detail here.

[0087] Preferably, a pair of the first claws are respectively provided with a first semicircular notch on the inner side and a first threaded hole on the outer end, and the first locking member comprises a first screw and a first nut, the first screw cooperates with the first threaded hole and is locked by the first nut;

[0088] A pair of the second claws are respectively provided with a second semicircular notch on the inner side and a second threaded hole on the outer end, the second locking member comprises a second screw and a second nut, the second screw cooperates with the second threaded hole and is locked by the second nut;

[0089] A pair of third claws are respectively provided with a third semicircular notch on the inner side and a third threaded hole on the outer end. The third locking member includes a third screw and a third nut. The third screw cooperates with the third threaded hole and is locked by the third nut.

[0090] Preferably, the first guide rod 51, the second guide rod 61 and the third guide rod 71 are all perpendicular to the horizontal slide rail 4;

[0091] The first upper slider 52 is provided with a pair of fourth claws and a fourth locking member acting on the fourth claws at one end away from the first claws, the first guide rod 51 can be slidably matched with the pair of fourth claws, and the fourth locking member can enable the pair of fourth claws to clamp the first guide rod 51;

[0092] The second upper slider 62 is provided with a pair of fifth claws and a fifth locking member acting on the fifth claws at one end away from the second claws, the second guide rod 61 can be slidably matched with the pair of fifth claws, and the fifth locking member can enable the pair of fifth claws to clamp the second guide rod 61;

[0093] The third upper slider 72 is provided with a pair of sixth claws and a sixth locking member acting on the sixth claws at the end away from the third claws. The third guide rod 71 can slide with the pair of sixth claws, and the sixth locking member can enable the pair of sixth claws to clamp the third guide rod 71.

[0094] Preferably, a pair of the fourth claws are respectively provided with fourth semicircular notches on their inner sides and fourth threaded holes on their outer ends, and the fourth locking member comprises a fourth screw and a fourth nut, the fourth screw cooperates with the fourth threaded hole and is locked by the fourth nut;

[0095] A pair of fifth claws are respectively provided with fifth semicircular notches on their inner sides and fifth threaded holes on their outer ends; the fifth locking member comprises a fifth screw and a fifth nut; the fifth screw cooperates with the fifth threaded hole and is locked by the fifth nut;

[0096] A pair of the sixth claws are respectively provided with a sixth semicircular notch on the inner side and a sixth threaded hole on the outer end. The sixth locking member includes a sixth screw rod and a sixth nut. The sixth screw rod cooperates with the sixth threaded hole and is locked by the sixth nut.

[0097] Preferably, the first pressing component 1 further comprises:

[0098] A pair of first lower sliders 12, comprising a first sliding portion and a first rotating portion connected to each other, wherein the first rotating portion can rotate relative to the first sliding portion, and the first guide rods 51 correspond to the first lower sliders 12 one by one and are slidably matched with the first sliding portion;

[0099] A fourth guide rod 13, wherein the first pressing wheel 11 is rotatably disposed at an end of the fourth guide rod 13, wherein the fourth guide rod 13 is connected to a pair of the first rotating parts, and the pair of the first sliding parts are slidably matched with the first guide rod 51 in the vertical direction, so that the pair of the first rotating parts form a height difference in the vertical direction;

[0100] In this embodiment, the height difference between a pair of first rotating parts is utilized to make the fourth guide rod 13 tilt relative to the conveying plane, thereby achieving the purpose of adjusting the bending angle.

[0101] The shaping component 3 also includes:

[0102] A pair of third lower sliders 32 include a connected third sliding portion and a third rotating portion, the third rotating portion can rotate relative to the third sliding portion, the third guide rod 71 corresponds to the third lower slider 32 one by one, and slidably cooperates with the third sliding portion; the pressure rod 31 includes a connecting horizontal section 311 and an inclined section 312, the horizontal section 311 is connected to a pair of third rotating portions, the pair of third sliding portions slidably cooperates with the third guide rod 71 in the vertical direction, so that a pair of third rotating portions form a height difference in the vertical direction, and the inclined section 312 can act on the top side of the second paperboard.

[0103] In this embodiment, the inclined section 312 is spherical at the end away from the horizontal section 311 to reduce the possibility of scratching the top surface of the cardboard.

[0104] Preferably, the first sliding portion is provided with a pair of seventh claws and a seventh locking member acting on the seventh claws at one end away from the first rotating portion, the first guide rod 51 can be slidably matched with the pair of seventh claws, and the seventh locking member can enable the pair of seventh claws to clamp the first guide rod 51;

[0105] The first rotating part is provided with a pair of eighth claws and an eighth locking member acting on the eighth claws at one end away from the first sliding part, the fourth guide rod 13 can be slidably matched with the pair of eighth claws, and the eighth locking member can enable the pair of eighth claws to clamp the fourth guide rod 13;

[0106] The third sliding portion is provided with a pair of ninth claws and a ninth locking member acting on the ninth claws at one end away from the third rotating portion, the third guide rod 71 can be slidably matched with the pair of ninth claws, and the ninth locking member can enable the pair of ninth claws to clamp the third guide rod 71;

[0107] The third rotating part is provided with a pair of tenth claws and a tenth locking member acting on the tenth claws at one end away from the third sliding part. The horizontal section 311 can slide with the pair of tenth claws, and the tenth locking member can enable the pair of tenth claws to clamp the horizontal section 311.

[0108] Preferably, a pair of the seventh claws are respectively provided with a seventh semicircular notch on the inner side and a seventh threaded hole on the outer end, and the seventh locking member comprises a seventh screw rod and a seventh nut, and the seventh screw rod cooperates with the seventh threaded hole and is locked by the seventh nut;

[0109] The inner sides of the pair of eighth claws are respectively provided with eighth semicircular notches, and the outer ends are respectively provided with eighth threaded holes, and the eighth locking member comprises an eighth screw rod and an eighth nut, and the eighth screw rod cooperates with the eighth threaded hole and is locked by the eighth nut;

[0110] A pair of the ninth claws are provided with ninth semicircular notches on their inner sides and ninth threaded holes on their outer ends, respectively; the ninth locking member comprises a ninth screw rod and a ninth nut; the ninth screw rod cooperates with the ninth threaded hole and is locked by the ninth nut;

[0111] A pair of the tenth claws are respectively provided with a tenth semicircular notch on the inner side and a tenth threaded hole on the outer end. The tenth locking member includes a tenth screw rod and a tenth nut. The tenth screw rod cooperates with the tenth threaded hole and is locked by the tenth nut.

[0112] The above disclosure is only a preferred embodiment of the present invention, which cannot be used to limit the scope of protection of the present invention. Therefore, equivalent changes made within the scope of the patent application of the present invention are still within the scope covered by the present invention.

Claims

1. Paper bag bending mechanism of bag making machine, It is characterized in that include: A conveying assembly having a horizontally disposed conveying plane; A first pressing assembly, comprising a first pressing wheel located above the conveying plane, wherein the first pressing wheel is conical; The second pressing component comprises a second pressing wheel located above the conveying plane; before the paperboard blank passes through the first pressing wheel and the second pressing wheel, the paperboard blank is symmetrically folded to form a crease, as well as a first paperboard and a second paperboard located on both sides of the crease, the conveying plane acts on the bottom side of the first paperboard, the first pressing wheel is located at the crease, and its conical surface continuously acts on the top side of the second paperboard, and the second pressing wheel is located at the opening, and its wheel surface continuously acts on the top side of the second paperboard; The shaping assembly is located at the rear side of the first shaping assembly and the second shaping assembly along the conveying direction of the cardboard blank, and has a pressure rod located above the conveying plane, and the pressure rod continuously acts on the top side of the second cardboard.

2. The paper bag bending mechanism of the bag making machine according to claim 1, It is characterized in that Also includes: A left wall panel, arranged on the left side of the conveying assembly; A right wall panel, arranged on the right side panel of the conveying assembly; A horizontal slide rail, one end of which is connected to the left wall panel and the other end of which is connected to the right wall panel; A first sliding structure, the top end of which is slidably connected to the horizontal slide rail, the bottom end of which is connected to the first pressing assembly, and can drive the first pressing wheel to slide in a horizontal direction relative to the conveying plane; A second sliding structure, the top end of which is slidably connected to the horizontal slide rail, the bottom end of which is connected to the second pressing assembly, and can drive the second pressing wheel to slide in the horizontal direction relative to the conveying plane; The third sliding structure has a top end slidably connected to the horizontal slide rail and a bottom end connected to the shaping component, and can drive the pressure rod to slide in a horizontal direction relative to the conveying plane.

3. The paper bag bending mechanism of the bag making machine according to claim 2, It is characterized in that The first sliding structure comprises: A first guide rod, a first upper slider is provided at the top end thereof, and the first upper slider is slidably matched with the horizontal slide rail; the first pressure wheel is provided at the bottom end of the first guide rod; The second sliding structure comprises: A second guide rod, the top of which is provided with a second upper slider, the second upper slider is slidably matched with the horizontal slide rail; the second pressure wheel is rotatably provided at the bottom end of the second guide rod; The third sliding structure comprises: The third guide rod has a third upper slider at the top, and the third upper slider is slidably matched with the horizontal slide rail; the pressure rod is arranged at the bottom end of the third guide rod.

4. The paper bag bending mechanism of the bag making machine according to claim 3, It is characterized in that The horizontal slide rail is a cylindrical rod-shaped body; A pair of first claws and a first locking member acting on the first claws are provided at the end of the first upper slider, the pair of first claws are respectively slidably matched with the horizontal slide rail, and the first locking member enables the pair of first claws to clamp the horizontal slide rail; A pair of second claws and a second locking member acting on the second claws are provided at the end of the second upper slider, the pair of second claws are respectively slidably matched with the horizontal slide rail, and the second locking member can enable the pair of second claws to clamp the horizontal slide rail; A pair of third claws and a third locking member acting on the third claws are provided at the end of the third upper slider, and the pair of third claws are respectively slidably matched with the horizontal slide rail, and the third locking member can enable the pair of third claws to clamp the horizontal slide rail.

5. The paper bag bending mechanism for a bag making machine according to claim 4, It is characterized in that A pair of the first claws are respectively provided with first semicircular notches on their inner sides and first threaded holes on their outer ends; the first locking member comprises a first screw and a first nut; the first screw cooperates with the first threaded hole and is locked by the first nut; A pair of the second claws are respectively provided with a second semicircular notch on the inner side and a second threaded hole on the outer end, the second locking member comprises a second screw and a second nut, the second screw cooperates with the second threaded hole and is locked by the second nut; A pair of third claws are respectively provided with a third semicircular notch on the inner side and a third threaded hole on the outer end. The third locking member includes a third screw and a third nut. The third screw cooperates with the third threaded hole and is locked by the third nut.

6. The paper bag bending mechanism for a bag making machine according to claim 4, It is characterized in that The first guide rod, the second guide rod and the third guide rod are all perpendicular to the horizontal slide rail; The first upper slider is provided with a pair of fourth claws and a fourth locking member acting on the fourth claws at an end away from the first claws, the first guide rod can be slidably matched with the pair of fourth claws, and the fourth locking member can enable the pair of fourth claws to clamp the first guide rod; The second upper slider is provided with a pair of fifth claws and a fifth locking member acting on the fifth claws at one end away from the second claws, the second guide rod can be slidably matched with the pair of fifth claws, and the fifth locking member can enable the pair of fifth claws to clamp the second guide rod; The third upper slider is provided with a pair of sixth claws and a sixth locking member acting on the sixth claws at an end away from the third claws. The third guide rod can slide with the pair of sixth claws, and the sixth locking member can enable the pair of sixth claws to clamp the third guide rod.

7. The paper bag bending mechanism for a bag making machine according to claim 6, It is characterized in that A pair of fourth claws are respectively provided with fourth semicircular notches on their inner sides and fourth threaded holes on their outer ends, and the fourth locking member comprises a fourth screw and a fourth nut, the fourth screw cooperates with the fourth threaded hole and is locked by the fourth nut; A pair of fifth claws are respectively provided with fifth semicircular notches on their inner sides and fifth threaded holes on their outer ends; the fifth locking member comprises a fifth screw and a fifth nut; the fifth screw cooperates with the fifth threaded hole and is locked by the fifth nut; A pair of the sixth claws are respectively provided with a sixth semicircular notch on the inner side and a sixth threaded hole on the outer end. The sixth locking member includes a sixth screw rod and a sixth nut. The sixth screw rod cooperates with the sixth threaded hole and is locked by the sixth nut.

8. The paper bag bending mechanism for a bag making machine according to claim 3, It is characterized in that The first pressing component also includes: A pair of first lower sliders, comprising a first sliding portion and a first rotating portion connected to each other, wherein the first rotating portion can rotate relative to the first sliding portion, and the first guide rods correspond to the first lower sliders one by one and are slidably matched with the first sliding portion; a fourth guide rod, wherein the first pressing wheel is rotatably disposed at an end of the fourth guide rod, the fourth guide rod is connected to a pair of the first rotating parts, and the pair of the first sliding parts are slidably matched with the first guide rod in the vertical direction so that the pair of the first rotating parts form a height difference in the vertical direction; The shaping component also includes: A pair of third lower sliding blocks include a connected third sliding portion and a third rotating portion, the third rotating portion can rotate relative to the third sliding portion, the third guide rod corresponds to the third lower sliding block one by one, and slidably cooperates with the third sliding portion; the pressure rod includes a connecting horizontal section and an inclined section, the horizontal section is connected to the pair of third rotating portions, the pair of third sliding portions slidably cooperates with the third guide rod in the vertical direction, so that the pair of third rotating portions form a height difference in the vertical direction, and the inclined section can act on the top side of the second paperboard.

9. The paper bag bending mechanism for a bag making machine according to claim 8, It is characterized in that The first sliding portion is provided with a pair of seventh claws and a seventh locking member acting on the seventh claws at one end away from the first rotating portion, the first guide rod can be slidably matched with the pair of seventh claws, and the seventh locking member can enable the pair of seventh claws to clamp the first guide rod; The first rotating part is provided with a pair of eighth claws and an eighth locking member acting on the eighth claws at one end away from the first sliding part, the fourth guide rod can be slidably matched with the pair of eighth claws, and the eighth locking member can enable the pair of eighth claws to clamp the fourth guide rod; The third sliding portion is provided with a pair of ninth claws and a ninth locking member acting on the ninth claws at one end away from the third rotating portion, the third guide rod can be slidably matched with the pair of ninth claws, and the ninth locking member can enable the pair of ninth claws to clamp the third guide rod; The third rotating part is provided with a pair of tenth claws and a tenth locking member acting on the tenth claws at an end away from the third sliding part. The horizontal section can slide with the pair of tenth claws, and the tenth locking member can enable the pair of tenth claws to clamp the horizontal section.

10. The paper bag bending mechanism for a bag making machine according to claim 9, It is characterized in that A pair of the seventh claws are respectively provided with seventh semicircular notches on their inner sides and seventh threaded holes on their outer ends; the seventh locking member comprises a seventh screw rod and a seventh nut; the seventh screw rod cooperates with the seventh threaded hole and is locked by the seventh nut; The inner sides of the pair of eighth claws are respectively provided with eighth semicircular notches, and the outer ends are respectively provided with eighth threaded holes, and the eighth locking member comprises an eighth screw rod and an eighth nut, and the eighth screw rod cooperates with the eighth threaded hole and is locked by the eighth nut; A pair of the ninth claws are provided with ninth semicircular notches on their inner sides and ninth threaded holes on their outer ends, respectively; the ninth locking member comprises a ninth screw rod and a ninth nut; the ninth screw rod cooperates with the ninth threaded hole and is locked by the ninth nut; A pair of the tenth claws are respectively provided with a tenth semicircular notch on the inner side and a tenth threaded hole on the outer end. The tenth locking member includes a tenth screw rod and a tenth nut. The tenth screw rod cooperates with the tenth threaded hole and is locked by the tenth nut.

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