Adjustable-pitch creasing components, longitudinal pressing mechanisms, and carton forming equipment

Abstract

This utility model discloses an adjustable-gap creasing assembly, longitudinal pressing mechanism, and carton forming equipment, comprising: a rotating frame; a fixed creasing wheel, which is fixedly mounted on the rotating frame; an adjustable creasing wheel, which is slidably mounted on the rotating frame; and an adjusting member, which is rotatably mounted on the rotating frame. The adjusting member is provided with a screw section, and the adjustable creasing wheel is provided with a threaded connection portion that threadedly engages with the screw section. The adjusting member rotates to adjust the gap between the adjustable creasing wheel and the fixed creasing wheel through the engagement of the screw section and the threaded connection portion. Using the above solution, an adjustable-gap creasing assembly, longitudinal pressing mechanism, and carton forming equipment are provided, which can be driven by the rotation of the adjusting member to adjust the gap between the adjustable creasing wheel and the fixed creasing wheel to adapt to processing two creasing lines with different gaps.

Description

Technical Field

[0001] This utility model belongs to the field of carton production equipment, specifically relating to an adjustable-spacing creasing component, a longitudinal pressing mechanism, and a carton forming equipment. Background Technology

[0002] Cardboard creasing is one of the important production processes in carton manufacturing. It involves the relative movement of the cardboard and creasing rollers, which causes the creasing rollers, which are pressed onto the cardboard, to roll on the cardboard to create creasing.

[0003] Double creasing is one of the most common creasing techniques. It involves creating two closely spaced creasing lines (usually 1-2 times the thickness of the cardboard) so that the cardboard on both sides of the two creasing lines can be folded 180° and offset against each other.

[0004] The existing method for processing double creasing involves using a special creasing wheel. The outer circumference of the creasing wheel is integrally formed with two creasing protrusions. The two creasing protrusions are arranged along the radial distance of the creasing wheel, so that when the cardboard and the creasing wheel move relative to each other, the two creasing protrusions roll on the cardboard to produce two creasing marks with a small distance between them.

[0005] The shortcomings of the above processing method are: since the indentation protrusion is integrally formed on the outer circumference of the indentation wheel, the distance between the two indentation protrusions is constant, and thus the distance between the two indentations is also constant. If it is necessary to change the distance between the two indentations, it is necessary to replace the indentation wheel with one of different shapes, which makes the processing inconvenient. Utility Model Content

[0006] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide an adjustable embossing component, longitudinal pressing mechanism and carton forming equipment, which can be driven by the rotation of the adjusting component to adjust the distance between the adjusting embossing wheel and the fixed embossing wheel to adapt to the processing of two embossings with different distances.

[0007] To achieve the above objectives, the present invention provides the following technical solution:

[0008] An adjustable-pitch indentation assembly, characterized in that it comprises: a rotating frame; a fixed indentation wheel, the fixed indentation wheel being fixedly mounted on the rotating frame; an adjustable indentation wheel, the adjustable indentation wheel being slidably mounted on the rotating frame; an adjusting member, the adjusting member being rotatably mounted on the rotating frame; the adjusting member being provided with a screw section, the adjustable indentation wheel being provided with a threaded connection portion that threadedly engages with the screw section; the adjusting member rotating so that the pitch between the adjustable indentation wheel and the fixed indentation wheel can be adjusted under the cooperation of the screw section and the threaded connection portion.

[0009] The present invention is further configured such that: a first indentation protrusion is provided on the outer periphery of the end of the fixed indentation wheel facing the adjustable indentation wheel, and a second indentation protrusion is provided on the outer periphery of the end of the adjustable indentation wheel facing the fixed indentation wheel.

[0010] The present invention is further configured such that: the outer periphery of the fixed embossing wheel is provided with a first flared surface that flares outward along the axial direction toward the adjustable embossing wheel; one end of the fixed embossing wheel facing the adjustable embossing wheel is provided with a first plane perpendicular to the axial direction of the fixed embossing wheel; and the first embossing protrusion is located at the intersection of the first flared surface and the first plane; and / or, the outer periphery of the adjustable embossing wheel is provided with a second flared surface that flares outward along the axial direction toward the fixed embossing wheel; one end of the adjustable embossing wheel facing the fixed embossing wheel is provided with a second plane perpendicular to the axial direction of the adjustable embossing wheel; and the second embossing protrusion is located at the intersection of the second flared surface and the second plane.

[0011] The present invention is further configured such that: the adjustable indentation wheel is provided with a sliding through hole along the axial direction, and the rotating frame is provided with a sliding section passing through the sliding through hole; the sliding section is provided with an internal groove extending to the outer peripheral wall of the sliding section, and the screw section and the threaded connection part both extend into the internal groove and are threadedly engaged in the internal groove.

[0012] The present invention is further configured such that: the inner peripheral wall of the sliding perforation and / or the outer peripheral wall of the sliding section are cylindrical; and / or, the outer peripheral wall of the sliding section is provided with positioning scale; and / or, the two sides of the built-in groove respectively extend to the outer peripheral wall of the sliding section, the threaded connection part passes through the built-in groove, and the threaded connection part is provided with a fixing connection part that is fixedly connected to the adjusting indentation wheel on both sides of the sliding section.

[0013] The present invention is further configured such that: the adjustable indentation wheel is provided with a threaded through hole, one end of the threaded through hole extends through to the sliding through hole, and the other end extends through to the outer peripheral wall of the adjustable indentation wheel; a tightening bolt is engaged with the threaded through hole; the tightening bolt is used to rotate and press against the outer peripheral wall of the sliding section to fix the adjustable indentation wheel after the sliding adjustment of the adjustable indentation wheel is completed.

[0014] The present invention is further configured such that: the rotating frame is elongated; one end of the rotating frame is provided with an indentation position, and the fixed indentation wheel and the adjustable indentation wheel are provided at the indentation position; the other end of the rotating frame is provided with an adjustment position, and the adjustment component is provided with a drive end at the adjustment position.

[0015] The present invention is further configured such that the adjusting member is provided with a manual driving member or an electric driving member at the driving end.

[0016] The present invention is further configured such that: the rotating frame is provided with a first mounting position between the indentation position and the adjustment position, and an elastic pressure roller is provided on the first mounting position; and / or, the rotating frame is provided with a second mounting position between the indentation position and the adjustment position, and a mounting frame is provided on the second mounting position, and the rotating frame is rotatably configured relative to the mounting frame.

[0017] A longitudinal pressing mechanism, characterized in that it includes a frame and the aforementioned adjustable-pitch indentation assembly.

[0018] The present invention is further configured such that: a sliding frame is slidably disposed on the frame, and the adjustable-spacing indentation assembly is disposed on the sliding frame; the sliding direction of the sliding frame is the same as the rotation axis of the fixed indentation wheel.

[0019] A carton forming device, characterized in that it includes the above-mentioned adjustable-spacing creasing assembly and / or the above-mentioned longitudinal pressing mechanism.

[0020] By adopting the above technical solution, 1. the adjustable creasing wheel can be moved closer to or further away from the fixed creasing wheel by driving the adjusting component to rotate, and the screw section and threaded connection part can be cooperated to adjust the distance between the adjustable creasing wheel and the fixed creasing wheel. This allows the cardboard that needs to be creasing to move relative to the creasing assembly and form two creasing marks when passing through the adjustable creasing wheel and the fixed creasing wheel. 2. For different creasing distance requirements, there is no need to replace the creasing wheel as in the traditional method. Only the distance between the adjustable creasing wheel and the fixed creasing wheel needs to be adjusted, making the processing more convenient. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is an assembly drawing of Embodiment 1 of the present utility model;

[0023] Figure 2 This is a cross-sectional view of Embodiment 1 of the present utility model;

[0024] Figure 3 This is a cross-sectional view of Embodiment 1 of the present utility model;

[0025] Figure 4 This is an exploded view of Embodiment 1 of this utility model;

[0026] Figure 5 This is an exploded view of Embodiment 1 of this utility model;

[0027] Figure 6 for Figure 4 Enlarged view of part of the image;

[0028] Figure 7 This is an assembly drawing of Embodiment 2 of the present invention;

[0029] Figure 8 for Figure 7 A magnified view of a portion of the image.

[0030] Explanation of reference numerals in the attached figures:

[0031] 1. Rotating frame;

[0032] 11. Indentation position; 12. First mounting position; 13. Second mounting position; 14. Adjustment position;

[0033] 111. Sliding section;

[0034] 1111, Internal slot; 1112, Positioning scale;

[0035] 2. Fixed indentation wheel;

[0036] 21. First indentation protrusion; 22. First flared surface; 23. First flat surface;

[0037] 3. Adjustable indentation wheel;

[0038] 31. Second indentation protrusion; 32. Second flared surface; 33. Second plane; 34. Sliding perforation; 35. Threaded perforation; 39. Threaded connection;

[0039] 391. Fixed connection part;

[0040] 4. Adjustment parts;

[0041] 41. Screw section; 42. Drive end; 43. Manual drive component;

[0042] 5. Tighten or loosen the bolts;

[0043] 6. Elastic pressure roller;

[0044] 7. Mounting bracket;

[0045] 8. Rack;

[0046] 81. Sliding frame; 82. Lifting cylinder. Detailed Implementation

[0047] To enable those skilled in the art to better understand this utility model and to more clearly define the scope of protection claimed by this utility model, the present utility model is described in detail below with reference to certain specific embodiments. It should be noted that the following are only some specific embodiments of the present utility model, and the specific and direct descriptions of related structures are merely for the convenience of understanding the present utility model; the specific features do not necessarily or directly limit the scope of implementation of the present utility model. Conventional choices and substitutions made by those skilled in the art under the guidance of the present utility model should all be considered within the scope of protection claimed by this utility model.

[0048] Example 1:

[0049] like Figures 1-6 As shown, this utility model discloses an indentation assembly with adjustable spacing, comprising:

[0050] Rotating frame 1, rotating frame 1 is a long strip along the left and right directions in the length direction;

[0051] The fixed indentation wheel 2 is fixed to the rotating frame 1 by bolts, and the axis of the fixed indentation wheel 2 is along the left and right direction;

[0052] Adjustable embossing wheel 3 is slidably mounted on rotating frame 1 by means of guide sliding, and the axis of adjustable embossing wheel 3 is along the left and right direction, and the adjustable embossing wheel 3 is located at the left end of fixed embossing wheel 2.

[0053] Adjusting component 4 is a rod-shaped component with its length in the left-right direction, and it passes through the rotating frame 1 and can rotate relative to the rotating frame 1 with the left-right direction as the rotation axis.

[0054] Among them, the adjusting part 4 is provided with a screw section 41, and the adjusting indentation wheel 3 is provided with a threaded connection part 39 that is threadedly engaged with the screw section 41;

[0055] The adjusting member 4 rotates to adjust the gap between the adjustable indentation wheel 3 and the fixed indentation wheel 2 through the cooperation of the screw section 41 and the threaded connection part 39.

[0056] Therefore, 1. By driving the adjusting component 4 to rotate, the adjusting crease wheel 3 can be moved closer to or further away from the fixed crease wheel 2 in cooperation with the screw section 41 and the threaded connection part 39, thereby adjusting the distance between the adjusting crease wheel 3 and the fixed crease wheel 2. This allows the cardboard that needs to be creased to move relative to the creased assembly and form two creases when passing through the adjusting crease wheel 3 and the fixed crease wheel 2. 2. For different crease spacing requirements, there is no need to replace the crease wheel as in the traditional method. Only the distance between the adjusting crease wheel 3 and the fixed crease wheel 2 needs to be adjusted, making the processing more convenient.

[0057] Specifically, the fixed creasing wheel 2 has a first creasing protrusion 21 on its outer periphery facing the adjustable creasing wheel 3, and the adjustable creasing wheel 3 has a second creasing protrusion 31 on its outer periphery facing the fixed creasing wheel 2, so that creasing on the cardboard is completed under the action of the first creasing protrusion 21 and the second creasing protrusion 31.

[0058] In this embodiment, the adjusting member 4 is rotated to adjust the distance s between the first indentation protrusion 21 and the second indentation protrusion 31, where 0mm ≤ s ≤ 10mm. In other embodiments, s can be increased or decreased depending on the specific conditions of the cardboard being processed.

[0059] Specifically, the fixed embossing wheel 2 is frustum-shaped, with a first flared surface 22 on its outer periphery that flares outward and to the left. The left end of the fixed embossing wheel 2 has a first plane 23 perpendicular to the left-right direction, and the first embossing protrusion 21 is located at the intersection of the first flared surface 22 and the first plane 23. Correspondingly, the adjustable embossing wheel 3 is frustum-shaped, with a second flared surface 32 on its outer periphery that flares outward and to the right. The right end of the adjustable embossing wheel 3 has a second plane 33 perpendicular to the left-right direction, and the second embossing protrusion 31 is located at the intersection of the second flared surface 32 and the second plane 33.

[0060] Therefore, the adjustable creasing wheel 3 can slide to the right and adjust to fit the first plane 23 and the second plane 33. At this time, the distance between the first creasing protrusion 21 and the second creasing protrusion 31 approaches 0, so that the combined first creasing protrusion 21 and the second creasing protrusion 31 can form a single creasing processing effect on the cardboard.

[0061] Specifically, the adjustable indentation wheel 3 has a sliding through hole 34 extending axially, and the rotating frame 1 has a sliding section 111 passing through the sliding through hole 34, so that the adjustable indentation wheel 3 can be adjusted left and right by the cooperation of the sliding through hole 34 and the sliding section 111. In addition, the sliding section 111 has an inner groove 1111 extending to the outer peripheral wall of the sliding section 111. The inner groove 1111 extends in the left and right direction. The screw section 41 passes into the inner groove 1111 in the left and right direction, and the threaded connection part 39 is inserted into the inner groove 1111 from the opening of the inner groove 1111 on the outer peripheral wall of the sliding section 111. The screw section 41 and the threaded connection part 39 are threadedly engaged in the inner groove 1111.

[0062] The inner peripheral wall of the sliding perforation 34 and the outer peripheral wall of the sliding section 111 are cylindrical, which makes the adjustment indentation wheel 3 more smoothly assembled and guided.

[0063] In addition, a positioning scale 1112 is provided on the outer peripheral wall of the sliding section 111, so that the distance between the first indentation protrusion 21 and the second indentation protrusion 31 can be quickly and accurately determined by the intersection with the positioning scale 1112 during the sliding adjustment of the adjustable indentation wheel 3.

[0064] Preferably, in this embodiment, the two sides of the built-in groove 1111 extend to the outer peripheral wall of the sliding section 111, the threaded connection part 39 passes through the built-in groove 1111, and the threaded connection part 39 is provided with a fixed connection part 391 on both sides of the sliding section 111, which is fixedly connected to the adjustable indentation wheel 3. This improves the fixed connection strength between the threaded connection part 39 and the adjustable indentation wheel 3 under the action of the fixed connection parts 391 at both ends, thereby making the threaded connection part 39 more stable and ensuring the stability of the fit between the threaded connection part 39 and the screw section 41.

[0065] In addition, the threaded connection 39 passes through the built-in groove 1111, and the outer periphery of the threaded connection 39 abuts against the peripheral wall of the built-in groove 1111, thereby limiting the circumferential rotation of the threaded connection 39 and the adjustable indentation wheel 3.

[0066] Preferably, the adjustable indentation wheel 3 is provided with a threaded through hole 35, one end of which extends through to the sliding through hole 34, and the other end extends through to the outer peripheral wall of the adjustable indentation wheel 3. The threaded through hole 35 is fitted with a tightening bolt 5; so that after the adjustable indentation wheel 3 has been adjusted by sliding, the tightening bolt 5 is used to rotate and press against the outer peripheral wall of the sliding section 111 to fix the adjustable indentation wheel 3, thereby making the indentation more stable.

[0067] Preferably, the threaded hole 35 extends to the second flared surface 32, making the overall structure more compact.

[0068] Specifically, the right end of the rotating frame 1 is provided with an indentation position 11. The fixed indentation wheel 2 is fixedly installed to the indentation position 11 by abutting against the right end of the indentation position 11 and by bolts. The sliding section 111 is part of the structure of the indentation position 11. The adjustable indentation wheel 3 is installed relative to the indentation position 11 by being sleeved on the sliding section 111. In addition, the left end of the rotating frame 1 is provided with an adjustment position 14, and the adjustment component 4 is provided with a drive end 42 at the adjustment position 14. Therefore, by indenting at the right end and adjusting at the left end, it is not easy for the two to interfere with each other in operation or movement.

[0069] The adjusting component 4 is equipped with a manual drive component 43 or an electric drive component at the drive end 42. The manual drive component 43 can be a handle as shown in the attached figure. The handle and the adjusting component 4 are L-shaped or T-shaped, so that the adjusting component 4 can be easily rotated by driving the handle. The electric drive component can be a servo motor or a servo motor in conjunction with a reducer to rotate the adjusting component 4. Preferably, the reducer is a worm gear reducer to ensure the stability of the positioning of the adjusting indentation wheel 3 after adjustment.

[0070] In addition, a first mounting position 12 is provided between the indentation position 11 and the adjustment position 14 of the rotating frame 1, and an elastic pressure roller 6 is provided on the first mounting position 12. A second mounting position 13 is provided between the indentation position 11 and the adjustment position 14 of the rotating frame 1, and a mounting frame 7 is provided on the second mounting position 13. The rotating frame 1 is rotated relative to the mounting frame 7.

[0071] Therefore, the mounting frame 7 can be fixedly installed on the device to be assembled, so as to realize the overall and convenient installation of the creasing assembly. The elastic pressure roller 6 is also used to press during the paperboard creasing process, making the creasing more stable.

[0072] Preferably, the elastic pressure roller 6 is a sun wheel.

[0073] In this embodiment, the elastic pressure roller 6 and the rotating frame 1 are rotated together using a bearing. In other embodiments, the elastic pressure roller 6 may be fixedly mounted on the rotating frame 1.

[0074] The crease position 11, the first mounting position 12, the second mounting position 13, and the adjustment position 14 are arranged to the left in sequence so that the elastic pressure roller 6 is closer to the crease position 11, making the cardboard placed at the crease position 11 flatter and improving the crease quality.

[0075] Example 2:

[0076] like Figures 7-8 As shown, a longitudinal pressing mechanism includes a frame 8 and an adjustable-spacing indentation assembly as described in Embodiment 1. Specifically, a sliding frame 81 is mounted on the frame 8 using a linear slide rail and a slider to slide in the left and right directions. A lifting cylinder 82 is fixedly mounted on the bottom of the sliding dummy by bolts. The adjustable-spacing indentation assembly is mounted on the sliding frame 81 by fixing the mounting dummy and the output shaft of the lifting cylinder 82.

[0077] In this embodiment, the sliding frame 81 and the frame 8 are driven by a rack, pinion, and servo motor. In other embodiments, a combination of lead screw and nut, or a combination of belt and pulley, can also be used for sliding drive.

[0078] Therefore, by driving the movement of the sliding frame 81 to adjust the position of the creasing assembly, and then by driving the creasing assembly downward through the lifting cylinder 82, the fixed creasing wheel 2 and the adjustable creasing wheel 3 are pressed downward onto the creasing platform (not shown in the figure), so that the cardboard can be transported back and forth through the creasing assembly, and double creasing is completed under the action of the first creasing protrusion 21 and the second creasing protrusion 31 after the spacing adjustment.

[0079] Example 3:

[0080] A carton forming device includes the longitudinal pressing mechanism described in Embodiment 2.

[0081] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An adjustable spacing indentation assembly, comprising: include: Rotating frame (1); A fixed indentation wheel (2) is fixedly mounted on a rotating frame (1); An adjustable embossing wheel (3) is slidably mounted on a rotating frame (1); Adjustment component (4), which is rotatably mounted on the rotating frame (1); The adjusting component (4) is provided with a screw section (41), and the adjusting indentation wheel (3) is provided with a threaded connection part (39) that is threadedly engaged with the screw section (41); The adjusting member (4) rotates to adjust the gap between the adjustable indentation wheel (3) and the fixed indentation wheel (2) in cooperation with the screw section (41) and the threaded connection (39).

2. The adjustable spacing creasing assembly of claim 1, wherein: The fixed embossing wheel (2) has a first embossing protrusion (21) on the outer periphery of one end facing the adjustable embossing wheel (3), and the adjustable embossing wheel (3) has a second embossing protrusion (31) on the outer periphery of one end facing the fixed embossing wheel (2).

3. The adjustable spacing creasing assembly of claim 2, wherein: The fixed embossing wheel (2) has a first flared surface (22) on its outer periphery that flares outward toward the adjustable embossing wheel (3) along the axial direction. The fixed embossing wheel (2) has a first plane (23) perpendicular to the axial direction of the adjustable embossing wheel (3) at one end. The first embossing protrusion (21) is located at the intersection of the first flared surface (22) and the first plane (23); and / or, The outer periphery of the adjustable embossing wheel (3) is provided with a second flared surface (32) that flares outward toward the fixed embossing wheel (2) along the axial direction. The end of the adjustable embossing wheel (3) facing the fixed embossing wheel (2) is provided with a second plane (33) that is perpendicular to the axial direction of the adjustable embossing wheel (3). The second embossing protrusion (31) is located at the intersection of the second flared surface (32) and the second plane (33).

4. The adjustable spacing creasing assembly of claim 1, wherein: The adjustable indentation wheel (3) is provided with a sliding through hole (34) through the axial direction. The rotating frame (1) is provided with a sliding section (111) passing through the sliding through hole (34). The sliding section (111) is provided with an inner groove (1111) that extends to the outer peripheral wall of the sliding section (111). The screw section (41) and the threaded connection part (39) both extend into the inner groove (1111) and are threadedly engaged in the inner groove (1111).

5. The adjustable spacing creasing assembly of claim 4, wherein: The inner peripheral wall of the sliding perforation (34) and / or the outer peripheral wall of the sliding segment (111) are cylindrical; and / or, The outer peripheral wall of the sliding section (111) is provided with positioning scales (1112); and / or, The two sides of the built-in groove (1111) extend to the outer peripheral wall of the sliding section (111), the threaded connection part (39) passes through the built-in groove (1111), and the threaded connection part (39) is provided with a fixed connection part (391) on both sides of the sliding section (111) and fixedly connected to the adjustable indentation wheel (3).

6. The adjustable spacing creasing assembly of claim 4, wherein: The adjustable indentation wheel (3) is provided with a threaded through hole (35). One end of the threaded through hole (35) passes through to the sliding through hole (34), and the other end passes through to the outer peripheral wall of the adjustable indentation wheel (3). The threaded through hole (35) is threaded with a tightening bolt (5). The tightening bolt (5) is used to fix the adjusting indentation wheel (3) by rotating and pressing it against the outer peripheral wall of the sliding section (111) after the adjusting indentation wheel (3) has been adjusted.

7. The adjustable spacing creasing assembly of claim 1, wherein: The rotating frame (1) is arranged in a long strip shape; The rotating frame (1) has an indentation position (11) at one end of its length, and the fixed indentation wheel (2) and the adjustable indentation wheel (3) are located at the indentation position (11). An adjustment position (14) is provided at the other end of the length of the rotating frame (1), and the adjustment member (4) is provided with a drive end (42) at the adjustment position (14).

8. The adjustable spacing creasing assembly of claim 7, wherein: The adjustment component (4) is located at the drive end (42) and is equipped with a manual drive component (43) or an electric drive component.

9. The adjustable spacing creasing assembly of claim 7, wherein: The rotating frame (1) is provided with a first mounting position (12) between the indentation position (11) and the adjustment position (14), and an elastic pressure roller (6) is provided on the first mounting position (12); and / or, The rotating frame (1) is provided with a second mounting position (13) between the indentation position (11) and the adjustment position (14). The second mounting position (13) is provided with a mounting bracket (7). The rotating frame (1) is rotatably arranged relative to the mounting bracket (7).

10. A longitudinal pressing mechanism characterized by: Includes a frame (8) and an adjustable-pitch indentation assembly as described in any one of claims 1-9.

11. The downholder mechanism of claim 10, wherein: A sliding frame (81) is slidably mounted on the frame (8), and the adjustable-pitch indentation assembly is mounted on the sliding frame (81); The sliding direction of the sliding frame (81) is the same as the rotation axis of the fixed indentation wheel (2).

12. A carton forming apparatus characterised in that: Includes the adjustable-pitch indentation assembly as described in any one of claims 1-9, and / or the longitudinal pressing mechanism as described in any one of claims 10-11.

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