Reciprocating type ellipse printing machine for small sheet production

Abstract

The utility model provides a reciprocating type ellipse printing machine for small sheet production, which comprises a machine base, a track guide component, a printing component, a plurality of workpiece bearing components movably arranged on the track guide component, and a driving component used for driving the workpiece bearing components to move, each workpiece bearing assembly comprises a platen used for bearing workpieces, a movable trolley is arranged below the platen, a buffer connecting mechanism is arranged between every two adjacent workpiece bearing assemblies, each buffer connecting mechanism comprises a connecting plate, and a vertically-arranged guide rod is arranged on each movable trolley. The two ends of the connecting plate are connected to guide rods of the two moving trolleys in a sliding and sleeving mode respectively, the buffering connecting mechanism further comprises elastic pieces, and the elastic pieces apply acting force to the guide rods to press the moving trolleys. The elastic piece is used for applying acting force to the connecting plate, so that the connecting plate can press the moving trolley downwards, and the trend that the moving trolley derails upwards is restrained.

Description

Technical Field

[0001] The utility model relates to the technical field of printing machines, in particular to a reciprocating elliptical printing machine for small-order production. Background Art

[0002] The elliptical printing machine places multiple print heads above an elliptical track, and slides multiple workbenches along the elliptical track. The movement of the platen realizes the conversion of different processes, so that multiple screen printing can be completed at one time. Due to market changes, there are more and more small-batch processing orders (or small-order production). In order to meet market demand, the elliptical printing machine has been improved in the direction of high efficiency, small quantity and low cost. A small number of print heads are used in conjunction with a large number of platens, which puts forward higher requirements on process parameters such as platen movement speed and position stop accuracy. The previous platen structure such as CN213920146U and other existing technologies are prone to derailment or inaccurate position stop due to large inertia when the platen moves at high speed. Therefore, it is necessary to optimize the structure of the elliptical printing machine. Utility Model Content

[0003] Based on the above technical problems, the utility model proposes a reciprocating elliptical printing machine for small-order production, aiming to solve the problem that the table of the elliptical printing machine is not stable enough when moving at high speed.

[0004] The technical solution of the utility model is achieved in this way:

[0005] A reciprocating elliptical printing machine for small-order production comprises a machine base, the machine base is provided with a track guide assembly, a printing assembly, a plurality of workpiece bearing assemblies movably arranged on the track guide assembly, and a driving assembly for driving the workpiece bearing module to move, the workpiece bearing assembly comprises a table plate for bearing workpieces, a mobile trolley is provided below the table plate, the mobile trolley is provided with two groups of guide wheel groups, one group of guide wheel groups comprises two guide wheels, and a ring-shaped concave structure is formed on the outer periphery of the guide wheel; the track guide assembly comprises an elliptical track, and two guide wheels in each group of guide wheel groups on the mobile trolley are clamped on both sides of the elliptical track;

[0006] A buffer connection mechanism is arranged between two adjacent workpiece bearing assemblies, and the buffer connection mechanism includes a connecting plate. A vertical guide rod is provided on the mobile trolley. Both ends of the connecting plate are respectively slidably connected to the guide rods of the two mobile trolleys. The buffer connection mechanism also includes an elastic member, and the elastic member applies a force to the guide rod to press the mobile trolley.

[0007] As a further optional solution, the elastic member is a spring, a limit block is provided on the top of the guide rod, the spring is sleeved on the guide rod, one end of the spring abuts against the connecting plate, and the other end of the spring abuts against the bottom of the limit block.

[0008] As a further optional solution, a connecting hole is opened at the top of the guide rod, a stud is fixedly connected to the bottom of the limit block, and the stud is threadedly connected in the connecting hole.

[0009] As a further optional scheme, the workpiece carrying module also includes a crossbeam, the table plate is arranged on the top of the crossbeam, the mobile trolley is arranged at the bottom of the crossbeam, and one end of the crossbeam is provided with two pulleys arranged up and down; the track guide assembly also includes a limit plate arranged on the machine base, and the two pulleys at the end of the crossbeam are clamped on the upper and lower sides of the limit plate, and the pulley is rollingly connected to the surface of the limit plate.

[0010] As a further optional solution, a transmission gear block is provided on the mobile trolley, and the transmission gear block is transmission-connected to the driving assembly.

[0011] As a further optional solution, a positioning assembly is further provided on the machine base, and the positioning assembly includes an insert block and a driver, and the driver drives the plug-in to move along a specified path; an insertion structure for inserting the insert block is formed at the bottom of the mobile trolley.

[0012] As a further optional solution, two positioning wheels are provided between the moving trolleys, a gap is provided between the two positioning wheels, and the gap between the two positioning wheels serves as the insertion structure.

[0013] As a further optional solution, the positioning assembly also includes a positioning seat arranged on the machine base, the plug-in is strip-shaped, the middle part of the plug-in is hinged to the positioning seat, the driver is a pneumatic cylinder or an oil cylinder, and one end of the plug-in is connected to the driver to enable the other end of the plug-in to swing and insert into the insertion structure.

[0014] As a further optional solution, baffles are provided on the outer sides of the movable trolley and the connecting plate.

[0015] The beneficial effects of the utility model are as follows: the elliptical printing machine connects the mobile trolleys under multiple table plates by arranging a cache connection mechanism between two workpiece bearing components, and the multiple connected mobile trolleys form a whole, which greatly reduces the probability of derailment, and uses elastic parts to apply force to the connecting plate, so that the connecting plate can press the mobile trolley downward, curb the tendency of the mobile trolley to derail upward, and further increase the stability of the movement of the mobile trolley and the table plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 This is a schematic diagram of the structure of a reciprocating elliptical printing machine for small-order production according to the utility model;

[0018] Figure 2 A schematic diagram of the structure of the workpiece carrying assembly being arranged on an elliptical track;

[0019] Figure 3 A schematic diagram of the bottom structure of the workpiece carrying assembly arranged on an elliptical track;

[0020] Figure 4 A schematic diagram of the structure of the connecting plate arranged between adjacent movable plates;

[0021] Figure 5 is a cross-sectional schematic diagram of the buffer connection mechanism;

[0022] Figure 6 It is a schematic diagram of the cooperation between the workpiece supporting assembly and the positioning assembly.

[0023] In the figure: 1. base; 2. track guide assembly; 21. elliptical track; 22. limit plate; 3. printing assembly; 4. workpiece bearing assembly; 41. table; 42. mobile trolley; 421. guide wheel; 422. transmission gear block; 423. positioning wheel; 424. insertion structure; 43. crossbeam; 431. pulley; 5. buffer connection mechanism; 51. connecting plate; 52. guide rod; 521. connecting hole; 53. elastic member; 54. limit block; 541. stud; 6. positioning assembly; 61. positioning seat; 62. plug-in; 63. drive; 7. baffle. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "rear", "vertical", "horizontal", etc., 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, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0026] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" 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 an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" and "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0028] refer to Figure 1-6, an embodiment of the present application shows a reciprocating elliptical printing machine for small-order production, comprising a machine base 1, on which a track guide assembly 2, a printing assembly 3, a plurality of workpiece bearing assemblies 4 movably arranged on the track guide assembly 2, and a driving assembly for driving the workpiece bearing module to move, the workpiece bearing assembly 4 comprising a table 41 for bearing workpieces, a mobile trolley 42 being arranged below the table 41, the mobile trolley 42 being provided with two sets of guide wheel groups, one set of guide wheel groups comprising two guide wheels 421, and the outer periphery of the guide wheel 421 being formed with a ring-shaped recessed structure; The track guide assembly 2 includes an elliptical track 21, and the two guide wheels 421 in each guide wheel group on the mobile trolley 42 are clamped on both sides of the elliptical track 21; a buffer connection mechanism 5 is arranged between two adjacent workpiece bearing assemblies 4, and the buffer connection mechanism 5 includes a connecting plate 51, and a vertical guide rod 52 is provided on the mobile trolley 42, and the two ends of the connecting plate 51 are respectively slidably connected to the guide rods 52 of the two mobile trolleys 42, and the buffer connection mechanism 5 also includes an elastic member 53, and the elastic member 53 applies a force to the guide rod 52 to press the mobile trolley 42.

[0029] Specifically, refer to Figure 2 and Figure 3 , the contour of the concave structure on the periphery of the guide wheel 421 is adapted to the outer contour of the elliptical track 21; Figure 5 As shown, by setting a cache connection mechanism between the two workpiece carrying components 4, the mobile trolleys 42 under the multiple table plates 41 are connected, and the multiple connected mobile trolleys 42 form a whole, which greatly reduces the probability of derailment, and the elastic member 53 is used to apply a force to the connecting plate 51, so that the connecting plate 51 can press the mobile trolley 42 downward, curbing the tendency of the mobile trolley 42 to derail upward, and further increasing the stability of the movement of the mobile trolley 42 and the table plate 41.

[0030] For details of the above scheme, please refer to Figure 4 and Figure 5 The elastic member 53 is a spring, and a limit block 54 is provided on the top of the guide rod 52. The spring is sleeved on the guide rod 52, and one end of the spring abuts against the connecting plate 51, and the other end of the spring abuts against the bottom of the limit block 54. In this way, the limit block 54 provides a reaction force support point for the spring, so that the spring can press the connecting plate 51 downward, and the connecting plate 51 presses the moving trolley 42 downward.

[0031] In addition, to facilitate assembly, the limit block 54 is fixed to the top of the guide column. In some embodiments, a connecting hole 521 is opened on the top of the guide rod 52, and a stud 541 is fixed to the bottom of the limit block 54. The stud 541 is threadedly connected to the connecting hole 521.

[0032] Specifically, in order to further increase the stability of the movement of the workpiece bearing assembly 4, refer to Figure 2 and Figure 3 , the workpiece bearing module also includes a crossbeam 43, the table 41 is arranged on the top of the crossbeam 43, the mobile trolley 42 is arranged at the bottom of the crossbeam 43, and one end of the crossbeam 43 is provided with two pulleys 431 arranged up and down; the track guide assembly 2 also includes a limit plate 22 arranged on the machine base 1, and the two pulleys 431 at the end of the crossbeam 43 are clamped on the upper and lower sides of the limit plate 22, and the pulleys 431 are rollingly connected with the surface of the limit plate 22. Among them, the pulleys 431 are clamped on the upper and lower sides of the edge of the limit plate 22, which can form a vertical limit on the crossbeam 43, so that the table 41 is more stable when moving, and the table 41 is prevented from swinging up and down.

[0033] For details of the above scheme, please refer to Figure 3 The mobile trolley 42 is provided with a transmission gear block 422, and the transmission gear block 422 is in transmission connection with the driving assembly. The transmission structure of the transmission gear block 422 and the driving assembly can refer to the prior art.

[0034] In some embodiments, since it is more difficult to control the accuracy of the stop position of the platen 41 when it moves at a high speed, Figure 6 The base 1 is also provided with a positioning assembly 6, which includes an insert block and a driver 63, and the driver 63 drives the plug-in 62 to move along a specified path; an insertion structure 424 for inserting the insert block is formed at the bottom of the mobile trolley 42.

[0035] Specifically, the position corresponding to the printing component 3 on the machine base 1 is generally the processing position. After the table 41 carries the workpiece and moves to the processing position, it needs to be aligned with the screen, and then the printing component 3 can achieve precise printing processing; in this embodiment, when the mobile trolley 42 moves to the processing position, the insert block of the positioning component 6 is inserted into the insertion structure 424 to ensure that the mobile trolley 42 and even the table 41 are accurately positioned and avoid movement of the table 41 during the printing process.

[0036] like Figure 3 and Figure 6As shown, two positioning wheels 423 are arranged between the mobile trolley 42, and there is a gap between the two positioning wheels 423, and the gap between the two positioning wheels 423 serves as the insertion structure 424. When the position of the table 41 is slightly deviated, the insert block will press against the wheel wall of one of the positioning wheels 423 when it is inserted into the insertion structure 424, and then generate thrust on the positioning wheel 423, so that the two positioning wheels 423 and the mobile trolley 42 are moved until the insert block corresponds to the middle position between the two positioning wheels 423, thereby achieving fine adjustment of the position of the table 41.

[0037] In some embodiments, reference Figure 6 The positioning assembly 6 also includes a positioning seat 61 arranged on the machine base 1, the plug-in 62 is strip-shaped, the middle part of the plug-in 62 is hinged to the positioning seat 61, the driver 63 is a cylinder or an oil cylinder, one end of the plug-in 62 is connected to the driver 63 to enable the other end of the plug-in 62 to swing and insert into the insertion structure 424.

[0038] In this embodiment, the plug-in 62 can be swung upward from bottom to complete the insertion into the insertion structure 424 , so as to facilitate and flexibly arrange the setting position of the positioning component 6 on the base 1 .

[0039] In some embodiments, reference Figure 3 The outer sides of the movable trolley 42 and the connecting plate 51 are both provided with baffles 7, and the baffles 7 can protect the transmission structure between the movable trolley 42 and the elliptical track 21, and can also protect the connecting plate 51 to prevent foreign objects from hitting the connecting plate 51 and causing the connecting plate 51 to break.

[0040] In addition, in the existing elliptical printing machines, multiple print heads are set to repeatedly print the same pattern (multiple patterns need to be printed on the workpiece, and each pattern may require multiple print heads to repeat printing) due to the need for the printed pattern to reach a certain thickness and clarity. Setting multiple print heads with the same pattern causes the elliptical printing machine to have a complex structure, large size, and high maintenance cost. In this embodiment, a reciprocating conveying production method is used, for example, N platens are conveyed forward under the print head, and the workpiece on these N platens is printed once, and then N-1 platens are conveyed in the reverse direction, so that the first platen of the N platens returns to the bottom of the print head for a second printing, and continues to be conveyed forward until the workpiece on the N platens completes the second printing, and so on, the third and fourth printings can be performed. In this way, only one print head is needed to realize multiple printings of the same pattern on the workpiece, which can simplify the equipment structure, reduce the equipment size, and facilitate maintenance. In addition, the reduction of print heads will also reduce the use of screens and shorten the time for installation and positioning of screens, thereby reducing costs and improving efficiency.

[0041] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A reciprocating elliptical printing machine for small-order production, comprising a machine base, on which a track guide assembly, a printing assembly, a plurality of workpiece bearing assemblies movably arranged on the track guide assembly, and a driving assembly for driving the workpiece bearing module to move, the workpiece bearing assembly comprising a table for bearing workpieces, a mobile trolley being arranged below the table, the mobile trolley being provided with two groups of guide wheel groups, one group of guide wheel groups comprising two guide wheels, and a ring-shaped concave structure being formed on the outer periphery of the guide wheel; the track guide assembly comprising an elliptical track, and two guide wheels in each group of guide wheel groups on the mobile trolley being clamped on both sides of the elliptical track; characterized in that: A buffer connection mechanism is arranged between two adjacent workpiece bearing assemblies, and the buffer connection mechanism includes a connecting plate. A vertical guide rod is provided on the mobile trolley. Both ends of the connecting plate are respectively slidably connected to the guide rods of the two mobile trolleys. The buffer connection mechanism also includes an elastic member, and the elastic member applies a force to the guide rod to press the mobile trolley.

2. The reciprocating elliptical printing machine for small order production according to claim 1 is characterized in that: The elastic member is a spring, a limit block is provided on the top of the guide rod, the spring is sleeved on the guide rod, one end of the spring abuts against the connecting plate, and the other end of the spring abuts against the bottom of the limit block.

3. The reciprocating elliptical printing machine for small order production according to claim 2 is characterized in that: A connecting hole is provided on the top of the guide rod, a stud is fixedly connected to the bottom of the limit block, and the stud is threadedly connected in the connecting hole.

4. The reciprocating elliptical printing machine for small-order production according to any one of claims 1 to 3, characterized in that: The workpiece carrying module also includes a crossbeam, the table plate is arranged on the top of the crossbeam, the mobile trolley is arranged at the bottom of the crossbeam, and one end of the crossbeam is provided with two pulleys arranged up and down; the track guide assembly also includes a limit plate arranged on the machine base, and the two pulleys at the end of the crossbeam are clamped on the upper and lower sides of the limit plate, and the pulley is rollingly connected to the surface of the limit plate.

5. The reciprocating elliptical printing machine for small order production according to claim 4 is characterized in that: The movable trolley is provided with a transmission gear block, and the transmission gear block is transmission-connected with the driving assembly.

6. The reciprocating elliptical printing machine for small order production according to claim 5 is characterized in that: The base is also provided with a positioning assembly, which includes an insert block and a driver. The driver drives the plug-in to move along a specified path. An insertion structure for inserting the insert block is formed at the bottom of the mobile trolley.

7. The reciprocating elliptical printing machine for small-order production according to claim 6 is characterized in that: Two positioning wheels are arranged between the moving trolleys, and there is a gap between the two positioning wheels. The gap between the two positioning wheels serves as the insertion structure.

8. The reciprocating elliptical printing machine for small order production according to claim 6 is characterized in that: The positioning assembly also includes a positioning seat arranged on the machine base, the plug-in is strip-shaped, the middle part of the plug-in is hinged to the positioning seat, the driver is a cylinder or an oil cylinder, one end of the plug-in is connected to the driver to enable the other end of the plug-in to swing and insert into the insertion structure.

9. The reciprocating elliptical printing machine for small-order production according to claim 1, characterized in that: Baffles are provided on the outer sides of the movable trolley and the connecting plate.

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