Semi-automatic circular shell label printer

Abstract

The invention discloses a semi-automatic circular shell label printer, and belongs to the technical field of circular shell labeling, the semi-automatic circular shell label printer comprises a workbench, the upper end of the front side of the workbench is provided with a transverse shaft transmission assembly, the upper end of the transverse shaft transmission assembly is movably connected with a vertical shaft transmission assembly, and the upper end of the vertical shaft transmission assembly is movably connected with a positioning assembly; a vertical table is fixedly connected to the upper end of the rear side of the workbench, an air cylinder is installed at the top end of the vertical table, a circular shell needing to be labeled is placed above the positioning assembly to be positioned and clamped, the deviation phenomenon in the subsequent labeling process is avoided, and then workers can conduct labeling on the circular shell according to the size and position of the circular shell needing to be labeled. According to the labeling machine, the transverse shaft transmission assembly and the vertical shaft transmission assembly are driven to move in the transverse and vertical axial directions, so that a circular shell needing to be labeled is made to be located below a transmission roller, finally, a worker drives an air cylinder to make a first connecting base drive the transmission roller to move downwards, the transmission roller moves to the surface of the circular shell needing to be labeled, and labeling operation of a label is completed.

Description

Technical Field

[0001] The present invention relates to the technical field of circular shell labeling, and more specifically, to a semi-automatic circular shell label printer. Background Art

[0002] At present, product labels are generally affixed to many glass bottled products. When affixing labels, labeling machines are commonly used, which can produce and attach labels in batches. However, in reality, outsourcing processing often occurs, and the attached labels also change with the needs of the client. The quantity required may be small, and even the shapes of labels for different batches of products are more varied, such as the commonly used rectangular, circular, and elliptical shapes. The changes in the shapes and sizes of these labels make it difficult to complete the labeling work through machines.

[0003] Especially in the prior art, when printing labels for products with circular shells, due to the different sizes of the circular shells, the diameter of the curved surface of the bottle body also changes, so that adjustments need to be made both in the positioning and labeling of the circular shells. For this reason, this solution proposes a convenient semi-automatic circular shell label printer to speed up the existing labeling efficiency while ensuring the quality of labeling. Summary of the invention

[0004] 1. Technical problems to be solved: In view of the problems existing in the prior art, the purpose of the present invention is to provide a semi-automatic circular shell label printer, which places the circular shell to be labeled on top of the positioning component for positioning and clamping to avoid the phenomenon of deviation during subsequent labeling. Then, according to the size and position of the circular shell to be labeled, the personnel drives the horizontal axis transmission component and the vertical axis transmission component to perform horizontal and vertical axial movements, thereby causing the circular shell to be labeled to be located below the transmission roller. Finally, the personnel drives the cylinder to cause the connecting seat to drive the transmission roller downward, thereby shifting to the surface of the circular shell to be labeled, thereby completing the labeling operation.

[0005] 2. Technical solution: To solve the above problems, the present invention adopts the following technical solutions.

[0006] A semi-automatic circular shell label printer comprises a workbench, a transverse axis transmission assembly is installed at the upper front end of the workbench, the upper end of the transverse axis transmission assembly is movably connected to the vertical axis transmission assembly, the upper end of the vertical axis transmission assembly is movably connected to the positioning assembly, the upper rear end of the workbench is fixedly connected to a vertical table, a cylinder is installed at the top of the vertical table, a connecting seat 1 is provided between the inner walls of one side of the vertical table, a transmission roller is rotatably connected between the inner walls of the bottom side of the connecting seat 1, the top of the connecting seat 1 is fixedly connected to the telescopic end of the cylinder, and the outer end of the transmission roller is sleeved with a label strip.

[0007] A further improvement is that the horizontal axis transmission assembly includes a base 1 fixedly connected to the upper end of the front side of the workbench, a threaded rod 1 is rotatably connected between the inner walls of the horizontal axis surface of the base 1, one end of the threaded rod 1 passes through the outer end of the base 1 and is installed with a motor 1, a connecting seat 2 is slidably connected between the inner walls of the base 1, and the connecting seat 2 is sleeved on the outer side of the threaded rod 1 and threadedly connected to it.

[0008] A further improvement is that the vertical axis transmission assembly includes a base 2 fixedly connected to the upper end of a connecting seat 2, a threaded rod 2 is rotatably connected between the inner wall of the vertical axis surface of the base 2, one end of the threaded rod 2 passes through the outer end of the base 2 and is installed with a motor 2, a connecting seat 3 is sleeved on one side of the top end of the base 2, and the connecting seat 3 is sleeved on the outer side of the threaded rod 2 and is threadedly connected to it.

[0009] A further improvement is that the positioning assembly includes a positioning platform fixedly connected to the upper end of the connecting seat three, a roller shaft one is rotatably connected between the inner walls of one side of the positioning platform, limiting grooves are provided on the left and right sides of the positioning platform, the limiting groove is located on one side of the roller shaft one, and a plurality of evenly distributed positioning grooves one are provided on the inner wall, a roller shaft two is provided between the inner walls of the positioning grooves one arranged in pairs on the transverse axis surface, a pressing piece is installed at the front bottom of the positioning platform, a transmission box is fixedly connected to the side end of the positioning platform, a transmission piece for driving the roller shaft one to rotate is provided inside the transmission box, and a support piece is installed at the upper end of the transmission box.

[0010] A further improvement is that the pressure member includes a connecting plate fixedly connected to the bottom of the front side of the positioning platform, a limiting rod is rotatably connected between the two connecting plates, a transmission rod is fixedly connected between the inner walls of the limiting rod, one end of the transmission rod passes through the rear side of the connecting plate, and a motor three is installed, a positioning groove two corresponding to the positioning groove one is opened at the bottom side end of the limiting rod, a sliding rod is fixedly connected between the inner walls of the two limiting rods, the sliding rod is located on the upper side of the transmission rod, two connecting rods are sleeved on the outer end of the sliding rod, the top side end of the connecting rod is rotatably connected with a rotating wheel, and a spacing adjustment member is installed between the inner walls of the two connecting rods.

[0011] A further improvement is that the spacing adjustment member includes a telescopic box body provided between two connecting rods, a transmission gear is rotatably connected to the central inner wall of the telescopic box body, a transmission rack is slidably connected to the upper and lower inner walls of the telescopic box body, the inner side of the transmission rack is meshed with the transmission gear, the side ends of the transmission rack are fixedly connected to the side walls of the connecting rod, a positioning groove three is provided at the central end of the transmission gear, a through hole corresponding to the positioning groove three is provided at the outer end of the telescopic box body, and a bolt one is installed through the through hole and the inner wall of the positioning groove three.

[0012] A further improvement is that the support member includes a support plate fixedly connected to the upper end of the transmission box body, a threaded hole 1 is provided at the side end of the support plate, a side plate is provided at the side end of the support plate, a slide groove and a socket are provided at the side end of the side plate, the socket is located at the front side of the slide groove, a support rod is inserted between the inner walls of the socket, and a bolt 3 is installed through the slide groove and the threaded hole 1.

[0013] A further improvement is that: a second threaded hole is opened on the front side of the side plate, a second bolt is installed between the inner walls of the second threaded hole, and one end of the second bolt is in contact with the support rod.

[0014] 3. Beneficial effects: Compared with the prior art, the technical solution provided by the present invention has the following beneficial effects: The present invention is reasonably designed. When it is necessary to attach labels to circular shells of different sizes, the personnel first install a plurality of transmission rollers inside the stand, and sleeve the labels to be labeled on the surfaces of the transmission rollers. Then, when labeling, the personnel first place the circular shell to be labeled on the top of the positioning assembly for positioning and clamping to avoid the phenomenon of deviation during subsequent labeling. Then, according to the size and position of the circular shell to be labeled, the personnel drive the horizontal axis transmission assembly and the vertical axis transmission assembly to move in the horizontal and vertical axes, so that the circular shell to be labeled is located below the transmission roller. Finally, the personnel drive the cylinder to drive the connecting seat to drive the transmission roller downward, so as to move to the surface of the circular shell to be labeled, and complete the labeling operation. In the present invention, the positioning component can be manually operated to adjust the sizes and distances of various specifications of the circular shell to be labeled, thereby making the applicability wider.

[0015] It should be noted that the structures not introduced in the present invention are the same as the prior art or can be implemented by using the prior art, and are not described in detail here because they do not involve the design points and improvement directions of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a structural schematic diagram of the horizontal axis transmission assembly and the vertical axis transmission assembly of the present invention; Figure 3 It is a structural schematic diagram of the positioning assembly of the present invention; Figure 4 It is a structural schematic diagram of the pressing member of the present invention; Figure 5 It is a structural schematic diagram of the spacing adjustment member of the present invention; Figure 6 It is a schematic structural diagram of the support member of the present invention.

[0017] Description of the numbers in the figure: 1. Workbench; 2. Transverse axis transmission assembly; 21. Base 1; 22. Threaded rod 1; 23. Motor 1; 24. Connecting seat 2; 3. Vertical axis transmission assembly; 31. Base 2; 32. Threaded rod 2; 33. Motor 2; 34. Connecting seat 3; 4. Positioning assembly; 41. Positioning platform; 42. Roller shaft 1; 43. Limiting groove; 44. Positioning groove 1; 45. Roller shaft 2; 46, pressing member; 461, connecting plate; 462, limiting rod; 463, motor three; 464, positioning groove two; 465, sliding rod; 466, connecting rod; 467, rotating wheel; 468, spacing adjustment member; 4681, telescopic box; 4682, transmission gear; 4683, transmission rack; 4684, positioning slot three; 4685, through hole; 4686, bolt one; 47. Transmission box; 48, support member; 481, support plate; 482, threaded hole 1; 483, side plate; 484, slide groove; 485, plug hole; 486, threaded hole 2; 487, support rod; 488, bolt 2; 489, bolt 3; 5. Stand; 6. Cylinder; 7. Connecting seat 1; 8. Transmission roller; 9. Label strip. DETAILED DESCRIPTION

[0018] To facilitate understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings. Several embodiments of the present invention are shown in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0019] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "page", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0020] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0021] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed", "provided with", "provided on" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. Example

[0022] See also Figure 1-6 A semi-automatic circular shell label printer comprises a workbench 1, a horizontal axis transmission assembly 2 is installed at the upper end of the front side of the workbench 1, the upper end of the horizontal axis transmission assembly 2 is movably connected with the vertical axis transmission assembly 3, the upper end of the vertical axis transmission assembly 3 is movably connected with the positioning assembly 4, the upper end of the rear side of the workbench 1 is fixedly connected with a vertical table 5, the top of the vertical table 5 is installed with a cylinder 6, a connecting seat 7 is provided between the inner walls of one side of the vertical table 5, a transmission roller 8 is rotatably connected between the inner walls of the bottom side of the connecting seat 7, the top of the connecting seat 7 is fixedly connected to the telescopic end of the cylinder 6, and the outer end of the transmission roller 8 is sleeved with a label strip 9.

[0023] During the use of this scheme, when it is necessary to attach labels to circular shells of different sizes, the personnel first install a plurality of transmission rollers 8 inside the stand 5, and sleeve the labels to be labeled on the surface of the transmission rollers 8. Then, when labeling, the personnel first place the circular shell to be labeled on the top of the positioning component 4 for positioning and clamping to avoid the phenomenon of offset during subsequent labeling. Then, according to the size and position of the circular shell to be labeled, the personnel drive the horizontal axis transmission component 2 and the vertical axis transmission component 3 to move horizontally and vertically, so that the circular shell to be labeled is located below the transmission roller 8. Finally, the personnel drive the cylinder 6 to cause the connecting seat 7 to drive the transmission roller 8 to move downward, so as to move to the surface of the circular shell to be labeled, and complete the labeling operation. In this embodiment, the positioning component 4 can be manually operated to adjust the sizes and distances of various specifications of the circular shell to be labeled, thereby making it more applicable.

[0024] See also Figure 1-2 The horizontal axis transmission assembly 2 includes a base 21 fixedly connected to the upper end of the front side of the workbench 1, a threaded rod 22 is rotatably connected between the inner walls of the horizontal axis surface of the base 21, one end of the threaded rod 22 penetrates to the outer end of the base 21, and a motor 23 is installed, and a connecting seat 24 is slidably connected between the inner walls of the base 21, and the connecting seat 24 is sleeved on the outer side of the threaded rod 22 and threadedly connected thereto.

[0025] More specifically: the vertical axis transmission assembly 3 includes a base 21 fixedly connected to the upper end of the connecting seat 24, a threaded rod 22 is rotatably connected between the inner wall of the vertical axis surface of the base 21, one end of the threaded rod 22 penetrates to the outer end of the base 21, and a motor 23 is installed, and a connecting seat 34 is sleeved on one side of the top end of the base 21, and the connecting seat 34 is sleeved on the outer side of the threaded rod 23 and is threadedly connected thereto.

[0026] During the use of this solution, when the personnel need to adjust the position of the circular shell to be labeled, the motor 1 23 can be driven to cause the threaded rod 1 22 to rotate. Since the connecting seat 24 is sleeved on the surface of the threaded rod 1 22 and the flipping direction is limited by the inner wall of the base 1 21, the connecting seat 24 can achieve linear displacement of the horizontal axis under the drive of the motor 1 23, thereby driving the base 2 31 connected above to adjust the horizontal axis position; Subsequently, when the personnel are labeling, by driving the motor 2 33, in the same process as above, under the transmission of the threaded rod 2 32, the outer connecting seat 3 34 is prompted to realize linear motion in the vertical axis direction, and then the positioning component 4 and the positioned circular shell are driven to be located at the labeling position, thereby realizing the labeling of the circular shell.

[0027] See also Figure 1-4 The positioning assembly 4 includes a positioning platform 41 fixedly connected to the upper end of the connecting seat 34, a roller shaft 42 is rotatably connected between the inner walls of one side of the positioning platform 41, and a limiting groove 43 is provided on the left and right sides of the positioning platform 41, the limiting groove 43 is located on one side of the roller shaft 42, and a plurality of evenly distributed positioning grooves 44 are provided on the inner wall, and a roller shaft 2 45 is provided between the inner walls of the positioning grooves 44 arranged in pairs on the transverse axis surface, a pressing member 46 is installed at the front bottom of the positioning platform 41, and a transmission box 47 is fixedly connected to the side end of the positioning platform 41, and a transmission member for driving the roller shaft 42 to rotate is provided inside the transmission box 47, and a support member 48 is installed at the upper end of the transmission box 47.

[0028] More specifically, the pressing member 46 includes connecting plates 461 fixedly connected to the bottom of the front side of the positioning platform 41, a limiting rod 462 is rotatably connected between the two connecting plates 461, a transmission rod is fixedly connected between the inner walls of the limiting rod 462, one end of the transmission rod passes through the rear side of the connecting plate 461, and a motor 3 463 is installed, a positioning groove 2 464 corresponding to the positioning groove 1 44 is opened at the bottom side end of the limiting rod 462, a sliding rod 465 is fixedly connected between the inner walls of the two limiting rods 462, the sliding rod 465 is located on the upper side of the transmission rod, and two connecting rods 466 are sleeved on the outer ends of the sliding rods 465, the top side ends of the connecting rods 466 are rotatably connected with a rotating wheel 467, and a spacing adjustment member 468 is installed between the inner walls of the two connecting rods 466.

[0029] During the use of this solution, when it is necessary to label circular shells of other sizes, the personnel can first drive the motor three 463 to cause the transmission rod to drive the limit rod 462 to rotate, so that the limit rod 462 flips over from the upper side of the limit slot 43. At this time, the personnel can take the roller shaft 2 45 and place it inside the appropriate positioning slot 1 44, so that it can carry the circular shell of the required size. Then the personnel reversely drives the motor three 463, so that the limit rod 462 is located on the upper side of the limit slot 43 again, and the multiple positioning slots 2 464 and the positioning slot 1 44 correspond to each other, and the transmission shaft of the roller shaft 2 45 placed inside the positioning slot 1 44 is limited to avoid displacement during rolling. Then, the personnel place the circular shell to be labeled between the inner walls of the roller shaft 1 42 and the roller shaft 2 45, and at the same time flip the connecting rod 466 to make the rotating wheel 467 press on the surface of the circular shell. During this period, the personnel can adjust the distance between the two connecting rods 466 by adjusting the distance adjusting member 468, so that the two rotating wheels 467 can be pressed against the surface of the circular shell appropriately, so as to avoid deviation and position phenomenon during subsequent labeling. During labeling, the transmission member inside the transmission box 47 drives the roller shaft 42 to rotate, thereby causing the circular shell placed above to passively rotate, thereby completing the labeling work of the entire circumferential surface. The transmission member can be directly driven by the motor to drive the transmission shaft of the roller shaft 42 to rotate, and can also realize the transmission operation through the cooperation of the chain gear; At the same time, in this embodiment, when the circular shell is placed above roller shaft 1 42 and roller shaft 2 45, one side thereof can abut against the end of the support member 48, thereby avoiding the reverse position of the horizontal axis during labeling and having a certain supporting force.

[0030] See also Figure 3-5 The spacing adjustment member 468 includes a telescopic box 4681 provided between two connecting rods 466, a transmission gear 4682 is rotatably connected to the central inner wall of the telescopic box 4681, and a transmission rack 4683 is slidably connected to the upper and lower inner walls of the telescopic box 4681, the inner side of the transmission rack 4683 is meshed with the transmission gear 4682, and the side ends of both sides of the transmission rack 4683 are fixedly connected to the side walls of the connecting rod 466, a positioning groove three 4684 is provided at the central end of the transmission gear 4682, and a through hole 4685 corresponding to the positioning groove three 4684 is provided at the outer end of the telescopic box 4681, and a bolt one 4686 is installed through the through hole 4685 and the inner wall of the positioning groove three 4684.

[0031] During the use of this solution, when the personnel adjust the distance between the two connecting rods 466, they can first loosen the bolt 1 4686 and take it out from the positioning groove 3 4684, so that the transmission gear 4682 is no longer subjected to the resistance force of the bolt 1 4686, so that the personnel can pull the transmission rack 4683 left and right, thereby extending the distance between the connecting rods 466 on both sides, so that the connecting rod 466 can slide freely on the sliding rod 465 to a suitable length. Then, the personnel rotates the bolt 1 4686 to the inside of the positioning groove 3 4684 and contacts the surface of the telescopic box 4681. Under the limitation of friction, the stretched position of the transmission rack 4683 is positioned, and the distance cannot be adjusted at will. Then, the rotating wheel 467 with the adjusted distance can be pressed against the two sides of the circular shell to be labeled, thereby realizing the limitation of circular shells of various sizes.

[0032] See also Figure 3 and Figure 6The support member 48 includes a support plate 481 fixedly connected to the upper end of the transmission box body 47, a threaded hole 482 is provided at the side end of the support plate 481, a side plate 483 is provided at the side end of the support plate 481, a slide groove 484 and a socket 485 are provided at the side end of the side plate 483, the socket 485 is located at the front side of the slide groove 484, a support rod 487 is inserted between the inner walls of the socket 485, and a bolt 489 is installed through the slide groove 484 and the threaded hole 482.

[0033] More specifically, a second threaded hole 486 is formed on the front side of the side plate 483 , a second bolt 488 is installed between the inner walls of the second threaded hole 486 , and one end of the second bolt 488 is in contact with the support rod 487 .

[0034] During the use of this scheme, in order to make the circular shell placed on roller shaft 1 42 and roller shaft 2 45, one side of it has a certain supporting force, and it is not easy to deviate during labeling. In this embodiment, by installing a support plate 481 on the top of the transmission box 47, and installing a side plate 483 on the side end of the support plate 481 through bolt 3 489, the personnel can freely adjust the horizontal axis position and angle of the side plate 483 through the pressure of the bolt 3 489, so that the support rod 487 inserted into the inside of the socket 485 can be located at the center end of one side of the circular shell, so as to achieve the resistance, support and limit of the circular shell; At the same time, in order to prevent the support rod 487 from sliding randomly, in the present embodiment, a threaded hole 486 is opened at the front end of the side plate 483, and then a bolt 488 is screwed in so that one end thereof contacts the surface of the support rod 487, thereby limiting the support rod 487.

[0035] The above-described embodiments only express a certain implementation mode of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the patent scope of the present invention. It should be pointed out that, for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be based on the attached claims.

Claims

1. A semi-automatic circular shell label printer, comprising a workbench (1), characterized in that: A transverse axis transmission assembly (2) is installed at the upper front end of the workbench (1), the upper end of the transverse axis transmission assembly (2) is movably connected to the vertical axis transmission assembly (3), the upper end of the vertical axis transmission assembly (3) is movably connected to the positioning assembly (4), the upper rear end of the workbench (1) is fixedly connected to a vertical platform (5), the top of the vertical platform (5) is installed with a cylinder (6), a connecting seat (7) is provided between the inner walls of one side of the vertical platform (5), a transmission roller (8) is rotatably connected between the inner walls of the bottom side of the connecting seat (7), the top of the connecting seat (7) is fixedly connected to the telescopic end of the cylinder (6), and the outer end of the transmission roller (8) is sleeved with a label strip (9).

2. A semi-automatic circular shell label printer according to claim 1, characterized in that: The transverse axis transmission assembly (2) comprises a base (21) fixedly connected to the upper end of the front side of the workbench (1); a threaded rod (22) is rotatably connected between the inner wall of the transverse axis surface of the base (21); one end of the threaded rod (22) passes through the outer end of the base (21) and is installed with a motor (23); a connecting seat (24) is slidably connected between the inner walls of the base (21); the connecting seat (24) is sleeved on the outer side of the threaded rod (22) and is threadedly connected thereto.

3. A semi-automatic circular shell label printer according to claim 2, characterized in that: The vertical axis transmission assembly (3) comprises a base 2 (31) fixedly connected to the upper end of the connecting seat 2 (24), a threaded rod 2 (32) rotatably connected between the inner wall of the vertical axis surface of the base 2 (31), one end of the threaded rod 2 (32) penetrates the outer end of the base 2 (31) and is installed with a motor 2 (33), and a connecting seat 3 (34) is sleeved on one side of the top end of the base 2 (31), and the connecting seat 3 (34) is sleeved on the outer side of the threaded rod 2 (32) and is threadedly connected thereto.

4. A semi-automatic circular shell label printer according to claim 3, characterized in that: The positioning assembly (4) comprises a positioning platform (41) fixedly connected to the upper end of the connecting seat (34); a roller shaft (42) is rotatably connected between the inner walls of one side of the positioning platform (41); a limiting groove (43) is provided on both the left and right sides of the positioning platform (41); the limiting groove (43) is located on one side of the roller shaft (42); a plurality of evenly distributed positioning grooves (44) are provided on the inner wall; a roller shaft (45) is provided between the inner walls of the positioning grooves (44) arranged in pairs on the transverse axis surface; a pressing member (46) is installed at the front bottom of the positioning platform (41); a transmission box (47) is fixedly connected to the side end of the positioning platform (41); a transmission member for driving the roller shaft (42) to rotate is provided inside the transmission box (47); and a support member (48) is installed at the upper end of the transmission box (47).

5. A semi-automatic circular shell label printer according to claim 4, characterized in that: The pressing member (46) comprises connecting plates (461) respectively fixedly connected to the bottom of the front side of the positioning platform (41); a limiting rod (462) is rotatably connected between the two connecting plates (461); a transmission rod is fixedly connected between the inner walls of the limiting rod (462); one end of the transmission rod passes through the rear side of the connecting plate (461) and is installed with a motor three (463); a positioning groove two (464) corresponding to the positioning groove one (44) is opened at the side end of the bottom end of the limiting rod (462); a sliding rod (465) is fixedly connected between the inner walls of the two limiting rods (462); the sliding rod (465) is located on the upper side of the transmission rod; two connecting rods (466) are sleeved on the outer ends of the sliding rods (465); a rotating wheel (467) is rotatably connected to the top side ends of the connecting rods (466); and a spacing adjustment member (468) is installed between the inner walls of the two connecting rods (466).

6. A semi-automatic circular shell label printer according to claim 5, characterized in that: The spacing adjustment member (468) comprises a telescopic box (4681) provided between two connecting rods (466), a transmission gear (4682) being rotatably connected to the central inner wall of the telescopic box (4681), a transmission rack (4683) being slidably connected to the upper and lower inner walls of the telescopic box (4681), the inner side of the transmission rack (4683) being meshed with the transmission gear (4682), both side ends of the transmission rack (4683) being fixedly connected to the side walls of the connecting rod (466), a positioning groove (4684) being provided at the central end of the transmission gear (4682), a through hole (4685) corresponding to the positioning groove (4684) being provided at the outer end of the telescopic box (4681), and a bolt (4686) being installed through the through hole (4685) and the inner wall of the positioning groove (4684).

7. A semi-automatic circular shell label printer according to claim 4, characterized in that: The support member (48) comprises a support plate (481) fixedly connected to the upper end of the transmission housing (47), a threaded hole (482) being provided at a side end of the support plate (481), a side plate (483) being provided at a side end of the support plate (481), a slide groove (484) and a plug hole (485) being provided at a side end of the side plate (483), the plug hole (485) being located at a front side of the slide groove (484), a support rod (487) being inserted between inner walls of the plug hole (485), and a bolt (489) being installed through and between the slide groove (484) and the threaded hole (482).

8. A semi-automatic circular shell label printer according to claim 7, characterized in that: A second threaded hole (486) is provided on the front side of the side plate (483), a second bolt (488) is installed between the inner walls of the second threaded hole (486), and one end of the second bolt (488) is in contact with the support rod (487).

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