Heating device for printing screen

Abstract

The utility model discloses a heating device for a printing screen plate, which comprises a box body, a heating cavity is arranged in the box body, a placing table for fixing the printing screen plate is arranged in the heating cavity, an upper heating component is arranged above the placing table, and a lower heating component is arranged below the placing table. The heating areas of the upper heating assembly and the lower heating assembly cover the area of the notch; a first mounting piece and a second mounting piece are arranged at the four corners of the notch, the first mounting piece comprises supporting walls perpendicular to each other, the supporting walls are used for abutting against the corners of the printing screen, the second mounting piece comprises a mounting rod and a mounting head, a protruding part extending outwards is arranged on the side, close to the mounting head, of the mounting rod, and a thread is arranged at the tail end of the mounting rod; a threaded hole is formed in the placement table, and the second installation piece is spirally connected with the placement table. According to the printing screen heating device, the printing screen can be rapidly fixed, the heating efficiency is improved, the printing screen is evenly heated through the upper heating assembly and the lower heating assembly, and the quality of the printing screen is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of screen printing plate, especially to a heating device for printing screen printing plate. BACKGROUND

[0002] Screen printing plate heating is widely used in the field of solar printing, especially in the production of photovoltaic cell, screen printing plate is used to make silver paste pass through the grid pattern to form upper and lower electrodes on the silicon wafer. After heating, the organic solvent in the paste volatilizes to form solar cell electrodes. Screen printing plate heating is also used to increase the wear resistance of screen printing plate, to improve the service life of screen printing plate by curing the photosensitive emulsion through heating, and to reduce the printing cost. However, the common oven baking temperature is uneven, which easily causes the screen printing plate line width to have large difference, affecting the quality of screen printing plate. SUMMARY

[0003] In view of the above technical problems, the utility model aims at providing a heating device for printing screen printing plate to make the heating uniform.

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

[0005] A heating device for printing screen printing plate, comprising a box body, a heating cavity is arranged in the box body, a door for opening and closing the heating cavity is arranged on the box body, a placement table for fixing the printing screen printing plate is arranged in the heating cavity, a notch is arranged at the center of the placement table, an upper heating assembly is arranged above the placement table, a lower heating assembly is arranged below the placement table, and the heating area of the upper heating assembly and the lower heating assembly covers the area of the notch; first mounting pieces and second mounting pieces are arranged at the four corners of the notch, two first mounting pieces are arranged on the side of the notch away from the door, the first mounting piece comprises mutually perpendicular support walls, the support walls are used for abutting against the corners of the printing screen printing plate, two second mounting pieces are arranged on the side of the notch close to the door, the second mounting piece comprises a mounting rod and a mounting head, a convex part extending outward is arranged on the side of the mounting rod close to the mounting head, a screw thread is arranged at the end of the mounting rod, a screw hole is arranged on the placement table, the second mounting piece is screw-connected with the placement table, and the second mounting piece comprises a fixed state in which the convex part abuts against the side edge of the printing screen printing plate and an open state in which the convex part turns to the outside.

[0006] Preferably, bosses are arranged on the two sides of the lower heating assembly, guide rails are arranged on the bosses, and sliding blocks are arranged on the bottom surface of the placement table and are in sliding connection with the guide rails.

[0007] Preferably, the first mounting piece is rotationally connected with the placement table, and a slot is arranged on the inner side of the support wall and contains a support pad with a thickness that can be selected.

[0008] Preferably, a control panel is arranged on the box, and the control panel is provided with buttons, a display screen and a buzzer.

[0009] Preferably, at least two temperature sensors are arranged on the setting table at intervals, the temperature sensors are away from each other, and the display screen on the control panel is used for displaying the sensed temperature of the temperature sensors.

[0010] Preferably, the buzzer vibrates when the difference between the sensed temperatures of different temperature sensors is greater than a set value.

[0011] Thanks to the technical scheme, the present application has the following advantages compared with the prior art:

[0012] The printing screen plate heating device comprises a box, a heating cavity is arranged in the box, a setting table for fixing the printing screen plate is arranged in the heating cavity, a notch is arranged at the center of the setting table, an upper heating assembly is arranged above the setting table, a lower heating assembly is arranged below the setting table, a first mounting piece and a second mounting piece are arranged at the four corners of the notch, the first mounting piece comprises support walls perpendicular to each other, the second mounting piece comprises a mounting rod and a mounting head, an outwardly extending protrusion is arranged at one end of the mounting rod close to the mounting head, a screw thread is arranged at the end of the mounting rod, a threaded hole is arranged on the setting table, the second mounting piece is screw-connected with the setting table, in use, the printing screen plate is placed between the two second mounting pieces, the printing screen plate is pushed inward until the support walls of the first mounting piece are abutted, the second mounting piece is rotated to make the protrusion abut against the side edge of the printing screen plate, the printing screen plate is quickly fixed, the heating efficiency is improved, the upper heating assembly and the lower heating assembly uniformly heat the printing screen plate, and the quality of the printing screen plate is improved. BRIEF DESCRIPTION OF DRAWINGS

[0013] The technical scheme of the present application will be further described below with reference to the drawings:

[0014] ATTACHED Figure 1 It is a perspective view of the printing screen plate heating device of the present application;

[0015] ATTACHED Figure 2 It is a perspective view of the printing screen plate heating device of the present application;

[0016] ATTACHED Figure 3 It is a perspective view of the printing screen plate heating device of the present application;

[0017] ATTACHED Figure 4 It is a perspective view of the setting table of the printing screen plate heating device of the present application;

[0018] ATTACHED Figure 5 It is a perspective view of the first mounting piece of the printing screen plate heating device of the present application.

[0019] Among them: 1. Box body; 2. Heating chamber; 3. Placement table; 31. Notch; 4. Upper heating assembly; 5. Lower heating assembly; 6. First mounting part; 61. Support wall; 62. Slot; 63. Support pad; 7. Second mounting part; 71. Mounting rod; 72. Mounting head; 73. Protrusion; 8. Guide rail; 9. Control panel; 91. Button; 92. Display screen; 93. Buzzer; 10. Temperature sensor; 11. Printing screen. DETAILED DESCRIPTION

[0020] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more precise definition of the protection scope of the present invention.

[0021] It should be noted that when a component is referred to as being "fixed to" another component, it may be directly on the other component or there may also be a central component. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may also be a central component. When a component is considered to be "set on" another component, it may be directly set on the other component or there may also be a central component. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0022] As attached Figure 1 , Attachment Figure 2 The figure shows a heating device for a printing screen of the present invention, comprising a housing 1, a heating chamber 2 formed in the housing 1, a door for opening and closing the heating chamber 2 installed on the housing 1, a placement table 3 for fixing the printing screen 11 in the heating chamber 2, a notch 31 in the center of the placement table 3, an upper heating assembly 4 installed above the placement table 3, and a lower heating assembly 5 installed below the placement table 3. The heating areas of the upper heating assembly 4 and the lower heating assembly 5 both cover the area of ​​the notch 31, so that the printing screen 11 is heated evenly. As shown in the attached figure, Figure 3 , Attachment Figure 4As shown, the four corners of the notch 31 are provided with the first mounting member 6 and the second mounting member 7, two first mounting members 6 are located at the side of the notch 31 away from the door, the first mounting member 6 comprises mutually perpendicular support walls 61, which are used to abut the corners of the printing screen 11 to position the printing screen 11. Two second mounting members 7 are installed at the side of the notch 31 close to the door, the second mounting member 7 comprises a mounting rod 71 and a mounting head 72, the side of the mounting rod 71 close to the mounting head 72 is provided with an outwardly extending protrusion 73, the end of the mounting rod 71 is threaded, the mounting platform 3 is provided with a threaded hole, the second mounting member 7 is screw-connected with the mounting platform 3, the second mounting member 7 comprises a fixed state in which the protrusion 73 is rotated to abut the side of the printing screen 11 and an open state in which the protrusion 73 is rotated outwardly. When the second mounting member 7 is in the open state, the printing screen 11 can be placed on the mounting platform 3 from the open heating cavity, the printing screen 11 is pushed inwardly to abut the first mounting member 6, and then the second mounting member 7 is rotated to buckle the printing screen 11 inwardly of the protrusion 73, so as to facilitate subsequent operations.

[0023] The lower heating assembly 5 is provided with bosses on both sides, the bosses are provided with guide rails 8, the bottom surface of the mounting platform 3 is provided with sliding blocks which are slidingly connected with the guide rails 8, so that the mounting platform 3 can be slid out of the heating cavity 2, and the printing screen 11 is more convenient to take and place.

[0024] In the embodiment, the first mounting member 6 is rotationally connected with the mounting platform 3, as shown in the accompanying drawings, Figure 5 As shown, the inner side of the support wall 61 is provided with a slot 62, the slot 62 is provided with a support pad 63 with a selectable thickness, so as to adapt to printing screens 11 of different sizes and finely adjust the mounting size, the rotation of the first mounting member 6 can guide the printing screen 11 when it is pushed in, so as to avoid collision, improve cooperation and increase the fault tolerance.

[0025] The cabinet 1 is provided with a control panel 9, the control panel 9 is provided with a button 91, a display screen 92 and a buzzer 93. At least two temperature sensors 10 are installed on the mounting platform 3 at intervals, the temperature sensors 10 are away from each other and detect the temperature around the printing screen 11, the display screen 92 on the control panel 9 is used to display the sensing temperature of the temperature sensors 10, the buzzer 93 vibrates when the difference between the sensing temperatures of different temperature sensors 10 is greater than a set value, so as to timely remind the staff to check and adjust, so as to avoid that uneven heating temperature affects the quality of the printing screen 11.

[0026] In use, the setting table 3 is pulled out, the printing screen 11 is placed between the two second mounting members 7, the printing screen 11 is pushed in until abutting against the supporting wall 61 of the first mounting member 6, the second mounting member 7 is rotated to rotate the convex portion 73 to abut against the side edge of the printing screen 11, the printing screen 11 is fixed on the setting table 3, and the setting table 3 is retracted to start the upper heating assembly 4 and the lower heating assembly 5 to uniformly heat the printing screen 11.

[0027] The above merely describes the embodiments of the present application, and does not limit the patent scope of the present application, and any equivalent structure or equivalent process transformation according to the content of the present application, or direct or indirect application in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A heating device for printing screens, characterized in that: The utility model provides a printing plate heating device, including box, be provided with heating cavity in the box, be provided with the door for opening and closing heating cavity on the box, be provided with the setting station for fixing printing screen plate in heating cavity, the center of setting station is provided with the gap, the top of setting station is provided with upper heating assembly, the bottom of setting station is provided with lower heating assembly, and the heating area of upper heating assembly and lower heating assembly all covers the area of gap, the four corners of gap are provided with first mounting piece and second mounting piece, two first mounting pieces set up in the side of gap away from door, first mounting piece includes mutually perpendicular support wall, support wall is used to with the corner of printing screen plate is opposite, two second mounting pieces set up in the side of gap close to door, second mounting piece includes installation rod and installation head, the side close to installation head of installation rod is provided with the convex part that extends outward, and the terminal of installation rod is provided with screw thread, and the threaded hole is provided on setting station, and second mounting piece is screw connected with setting station, and second mounting piece includes the fixed state that rotates to convex part and the side of printing screen plate is opposite and the open state that convex part turns to the outside.

2. The heating device for a printing screen according to claim 1, characterized by: The two sides of the lower heating assembly are provided with bosses, the bosses are provided with guide rails, and the bottom surface of the setting station is provided with sliding blocks in sliding connection with the guide rails.

3. The heating device for a printing screen according to claim 1, characterized by: The first mounting piece is rotationally connected with the setting station, the inner side of the support wall is provided with a slot, and the slot is provided with a support pad with a selectable thickness.

4. The heating device for a printing screen according to claim 1, characterized by: The box is provided with a control panel, the control panel is provided with a button, a display screen, and a buzzer.

5. The heating device for a printing screen according to claim 4, characterized in that: The setting station is provided with at least two temperature sensors at intervals, the temperature sensors are away from each other, and the display screen on the control panel is used to display the sensing temperature of the temperature sensors.

6. The heating device for a printing screen according to claim 5, characterized in that: The buzzer vibrates when the difference between the sensing temperatures of different temperature sensors is greater than a set value.

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