Automatic silica gel wiring molding press

Abstract

The invention discloses an automatic silica gel wiring molding press which comprises a rack, a wiring mechanism is arranged on the rack and comprises a driving mechanism and a wiring end, the driving end of the driving mechanism is connected with a loading shaft, the driving mechanism can control the loading shaft to horizontally move and rotate, and the wiring end is installed at the lower end of the loading shaft. The two guide stepping motors are arranged at the left end and the right end of the guide wire pipe respectively, the output ends of the guide stepping motors are connected with guide wheels, openings are formed in the left end and the right end of the guide wire pipe, and the edges of the guide wheels can stretch into the guide wire pipe and abut against wires in the guide wire pipe. Through cooperative control of a prefabricated wiring mold and a four-axis linkage driving mechanism, a wiring end can move and rotate, double guide wheels driven by a guide stepping motor dynamically clamp a wire rod, and a heating wire is completely embedded into a preset wire groove of the mold. And the track deviation of manual arrangement is eliminated through mechanical automation, the consistency error of the distribution form of the wires is smaller than or equal to 0.53 mm, and the problem that the temperature of a heating area is distributed unevenly is solved fundamentally.

Description

Technical Field

[0001] The invention relates to the technical field of silica gel heating pads, in particular to an automatic silica gel wiring molding machine. Background Art

[0002] In response to the need for warmth caused by temperature changes, silicone heating pads have been widely used in various scenarios, such as desktop heating pads in office environments and warm color plates in home life. In response to the specific needs of the catering industry to keep dishes delicious, thermal insulation mats with heating functions came into being. This type of thermal insulation mat usually uses a silicone base pad and embeds a heating wire as a heat source, which achieves the insulation effect by providing gentle and continuous heat to the food at the bottom of the tableware. The current main production process relies on manual arrangement of the heating wire on the surface of the silicone mold according to a preset curve shape, and then uses a plastic sealing and hot pressing process to tightly combine the heating wire and the silicone pad.

[0003] However, this manual placement method has significant limitations: due to differences in operator skill and stability, it's difficult to precisely control the layout and shape of the heating wires on the mat. This results in a discrete and difficult-to-reproduce distribution of the heating wires in the final product. This not only makes it difficult to ensure consistent product performance, but also directly leads to uneven heat distribution across the heating area, compromising insulation effectiveness and impacting production efficiency. Summary of the Invention

[0004] Therefore, in order to solve the above problems, the purpose of the present invention is to provide an automated silicone wiring molding machine, comprising a frame, a workbench, a molding mechanism, and a wiring mechanism on the frame, the workbench is arranged below the molding mechanism and the wiring mechanism, the workbench is used to place the wiring mold, the wiring mechanism comprises a driving mechanism and a wiring end head, the driving end of the driving mechanism is connected to the loading shaft, the driving mechanism can control the translation and rotation of the loading shaft, the wiring end head is installed at the lower end of the loading shaft, the wiring end head comprises a guide wire tube and a guide stepper motor, the two guide stepper motors are respectively arranged at the left and right ends of the guide wire tube, the output end of the guide stepper motor is connected to a guide wheel, and the left and right ends of the guide wire tube are provided with openings for the edge of the guide wheel to extend into the guide wire tube and press against the wire in the guide wire tube.

[0005] Preferably, the wiring end includes a wire management plate, which is arranged above the wire guide tube. The wire management plate is provided with a wire threading port, and an auxiliary wheel is provided in the wire threading port.

[0006] Preferably, the threading opening is square, and the four auxiliary wheels are arranged on the four edges of the threading opening.

[0007] Preferably, the wiring end includes a wire pressing portion, which is arranged at the outlet of the guide wire tube, and a wire pressing wheel is provided at the lower end of the wire pressing portion.

[0008] Preferably, the wire crimping wheel includes two wheel assemblies arranged along the outlet direction of the guide wire tube.

[0009] Preferably, the wheel assembly comprises a left wheel, a middle wheel and a right wheel that are coaxially arranged, and the diameter of the middle wheel is smaller than that of the left wheel and the right wheel.

[0010] Preferably, the driving mechanism includes a first linear guide rail, a second linear guide rail is movably connected to the first linear guide rail, a third linear guide rail is movably connected to the second linear guide rail, a carrier plate is movably connected to the third linear guide rail, the loading shaft is rotatably connected to the carrier plate, and a rotating servo motor is provided on the carrier plate to cooperate with the loading shaft.

[0011] Preferably, the workbench includes a station guide rail and a station cylinder, the station guide rail is movably connected to a mold table, and the mold table is connected to the output end of the station cylinder.

[0012] Preferably, the work station guide rail is provided with a first work station and a second work station, the wiring mechanism is provided on the side of the first work station, and the molding mechanism is provided above the second work station.

[0013] The beneficial effects of the present invention are:

[0014] Through the coordinated control of a prefabricated wiring mold and a four-axis linkage drive mechanism, the wiring terminal can be precisely moved and rotated in three dimensions. Dual guide wheels driven by a stepper motor dynamically grip the wire. The square threading openings on the wiring board and four auxiliary wheels guide the heating wires completely into the mold's pre-set wire slots. This automated process eliminates the path deviation associated with manual wiring, ensuring a consistent wire distribution error of ≤0.5mm, fundamentally addressing the problem of uneven temperature distribution across the heating area. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0016] Figure 1 It is a structural schematic diagram of the present invention;

[0017] Figure 2 It is a structural diagram of the workbench;

[0018] Figure 3 Schematic diagram of the structure of the driving mechanism;

[0019] Figure 4 Schematic diagram of the structure of the wiring terminal;

[0020] Figure 5 Schematic diagram of the structure of the guide wire tube;

[0021] Explanation of the accompanying figures: 1. Frame; 2. Workbench; 21. Work station guide rail; 211. First work station; 212. Second work station; 22. Work station cylinder; 23. Mold table; 3. Wiring mechanism; 31. Driving mechanism; 311. Loading shaft; 312. First linear guide rail; 313. Second linear guide rail; 314. Third linear guide rail; 315. Carrier plate; 316. Rotating servo motor; 32. Wiring terminal; 321. Guide wire tube; 322. Guide stepper motor; 323. Guide wheel; 324. Wire management plate; 3241. Threading port; 3242. Auxiliary wheel; 325. Wire pressing part; 3251. Wheel assembly; 3252. Left wheel; 3253. Middle wheel; 3254. Right wheel; 4. Molding mechanism; 5. Wire; 6. Mold.

[0022] The purpose, features and advantages of the present invention will be further described with reference to the accompanying drawings and in conjunction with the embodiments. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention.

[0024] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this application and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0025] Unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be interpreted broadly. For example, they can refer to fixed, removable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediary; and internal communication between two components. Those skilled in the art will understand the specific meanings of these terms in this application.

[0026] Example 1:

[0027] Figure 1-Figure 5The present invention shows an automated silicone wiring molding machine, which includes a frame 1, on which a workbench 2, a molding mechanism 4, and a wiring mechanism 3 are installed. The workbench 2 is used to place a wiring mold 6, and the wiring mechanism 3 is used to arrange the wound wire 5 in the mold 6. The molding mechanism 4 is used to hot-press the plastic film cloth and the arranged wire 5 to process the two into a whole. The workbench 2 is specifically arranged below the molding mechanism 4 and the wiring mechanism 3. The wiring mechanism 3 includes a driving mechanism 31 and a wiring end 32. The driving end of the driving mechanism 31 is connected to the loading shaft 311. The driving mechanism 31 is a four-axis drive, which can control the loading shaft 311 to translate in three mutually perpendicular directions, and can also control the loading shaft 311 to rotate along one of the axes. The wiring end 32 is installed at the lower end of the loading shaft 311. The wiring end 32 includes a guide wire tube 321 and a guide stepper motor 322. The two guide stepper motors 322 are respectively arranged at the left and right ends of the guide wire tube 321. The output end of the guide stepper motor 322 is connected to a guide wheel 323. The left and right ends of the guide wire tube 321 are provided with openings for the edge of the guide wheel 323 to extend into the guide wire tube 321 and press against the wire 5 in the guide wire tube 321. The wire 5 is usually coiled into a loop and fixedly hung on a rotatable winding drum. Before the automatic silicone wiring molding machine is started, one end of the wire 5 needs to be manually placed into the wiring end 32 so that the wire 5 can contact the guide wheel 323.

[0028] The wiring end 32 includes a wire management plate 324, which is arranged above the guide wire tube 321 to correspond to the entrance of the upward guide wire tube 321. The wire management plate 324 is provided with a wire threading port 3241, and an auxiliary wheel 3242 is provided in the wire threading port 3241. The wire threading port 3241 is square, and four auxiliary wheels 3242 are arranged on the four edges of the wire threading port 3241. The wire management plate 324 is used to organize the heating wire 5 to prevent the wire 5 from directly sliding and rubbing against the entrance edge of the guide wire tube 321, thereby preventing the wire 5 from being damaged. The auxiliary wheels 3242 are passively rotating and in direct contact with the wire 5. When the end of the wire 5 is continuously led out by the guide wheel 323, the auxiliary wheel 3242 abutting against the wire 5 continues to roll, thereby reducing the friction between the wire 5 and the mechanical structure and preventing the wire 5 from being damaged.

[0029] The wiring terminal 32 also includes a wire pressing portion 325, which is arranged at the outlet of the guide wire tube 321. The lower end of the wire pressing portion 325 is provided with a wire pressing wheel, which includes two wheel assemblies 3251 arranged along the outlet direction of the guide wire tube 321. The wire pressing portion 325 is used to press the wire 5 into the wire 5 groove preset in the mold 6. The two wheel assemblies 3251 of the wire pressing portion 325 are arranged one after the other and simultaneously press the wire 5 so that it can be embedded in the wire 5 groove of the mold 6. The structure of the wheel assembly 3251 has also been designed in detail. Specifically, the wheel assembly 3251 includes a coaxially arranged left wheel 3252, an intermediate wheel 3253, and a right wheel 3254. The diameter of the intermediate wheel 3253 is smaller than that of the left wheel 3252 and the right wheel 3254, which is consistent with the circular cross-section of the wire 5. This prevents the wire 5 from being excessively deformed when squeezed by the wire pressing wheel, which would affect the quality of the final product.

[0030] The driving mechanism 31 mentioned in this embodiment is a four-axis driving device. Specifically, the driving mechanism 31 includes a first linear guide 312, a second linear guide 313 is movably connected to the first linear guide 312, a third linear guide 314 is movably connected to the second linear guide 313, a carrier 315 is movably connected to the third linear guide 314, a loading shaft 311 is rotatably connected to the carrier 315, a rotating servo motor 316 is provided on the carrier 315 to cooperate with the loading shaft 311, and two second linear guides 313 parallel to each other are fixed. On a guide rail plate, the guide rail plate is movably connected to two mutually parallel first linear guides 312, a third linear guide 314 is movably connected to two second linear guides 313, and a carrier plate 315 is movably connected to the third linear guide 314. A loading shaft 311 is rotatably connected to the carrier plate 315. The loading shaft 311 is equipped with a rotating servo motor 316. The rotating servo motor 316 is fixed to the carrier plate 315. The driving end of the rotating servo motor 316 cooperates with the loading shaft 311 to control the rotation of the loading shaft 311. The first linear guide 312, the second linear guide 313, and the third linear guide 314 are all equipped with corresponding cylinder components, which can respectively drive the second linear guide 313, the third linear guide 314, and the carrier plate 315 to translate.

[0031] The workbench 2 includes a work station guide rail 21 and a work station cylinder 22. The work station guide rail 21 is provided with a first work station 211 and a second work station 212. The wiring mechanism 3 is arranged on the side of the first work station 211, and the molding mechanism 4 is arranged above the second work station 212. The work station guide rail 21 is movably connected to a mold table 23, and the mold table 23 is connected to the output end of the work station cylinder 22. The mold table 23 is used to place the mold 6. The work station cylinder 22 is used to drive the mold table 23 to move horizontally along the work station guide rail 21, and then switch between the first work station 211 and the second work station 212. When the mold 6 is located in the first work station 211, the wiring mechanism 3 performs wiring operation, and then drives the mold table 23 to move the mold 6 to the second work station 212 through the work station cylinder 22. The staff then places the membrane cloth on the mold 6, and the hot end of the molding mechanism 4 hot-presses the heating wire 5 and the membrane cloth downward, and finally a heating pad can be made.

[0032] Workflow:

[0033] Step 1: The operator first correctly places the mold 6 required for wiring on the mold table 23 of the workbench 2. Next, the operator manually inserts one end of the wire 5 from the winding reel into the wiring terminal 32. The wire 5 passes sequentially through the square threading opening 3241 of the wire management plate 324. Auxiliary wheels 3242 on each side of the threading opening 3241 passively roll upon contact with the wire 5, reducing frictional resistance. The wire 5 is then introduced into the inlet of the guide tube 321 and placed between the left and right guide wheels 323 within the guide tube 321, ensuring that it is securely clamped by the guide wheels 323.

[0034] Step 2: At this point, the mold table 23 is located in the first working position 211. The wiring mechanism 3 starts working. The drive mechanism 31 controls the loading shaft 311 to move and rotate freely in three-dimensional space, accurately positioning the position and angle of the wiring terminal 32 to adapt to the direction of the wire groove of the mold 6. The guide stepper motor 322 below the loading shaft 311 drives the guide wheel 323 to rotate, continuously leading the wire 5 from the winding drum and guiding it to the wire pressing part 325 through the guide wire tube 321. The two wheel assemblies 3251 at the lower end of the wire pressing part 325 press down the wire 5 synchronously, one in front and one behind. The special diameter design of the wheel assembly 3251 allows its middle wheel 3253 to better adapt to and guide the round wire 5 downward into the preset wire groove 5 of the mold 6, while the wheels on both sides provide support to prevent the wire 5 from excessive deformation or flattening. Throughout the wiring process, the wiring terminal 32 moves along the preset path, coordinating with the guiding and wire pressing actions to ensure that the wire 5 is laid intact and undamaged in the wire groove of the mold 6.

[0035] Step 3: After the wires 5 are laid out within the mold 6, the station cylinder 22 drives the mold table 23 along the station guide rail 21, smoothly moving it from the first working position 211 to the second working position 212. Subsequently, a worker manually applies plastic film of a specified size and material to the surface of the mold 6, now covered with the wires 5, ensuring that the film completely covers the wires 5 and the wire trough area. This station switching mechanism allows the wiring and molding processes to be performed separately, effectively improving the equipment's operating efficiency.

[0036] Step 4: After the mold table 23 reaches the second working position 212 directly below the molding mechanism 4, the molding process begins. The hot pressing end of the molding mechanism 4 moves downward and applies a preset temperature and pressure to the mold 6 covered with the membrane cloth. During the hot pressing process, the exhaust gas is controlled by the appropriate pressure stage to allow the molten membrane cloth material to flow fully, completely fill the gap around the wire 5 and firmly bond with it. The continuous action of the holding pressure stage ensures that the membrane cloth and the wire 5 are fused and solidified. After the holding pressure is completed, the product naturally cools to a safe temperature along with the mold 6, preparing for subsequent demolding.

[0037] Step 5: After the product has cooled to its proper position, the hot pressing end of the molding mechanism 4 is lifted. The operator takes out the mold 6 together with the semi-finished heating pad formed, performs a demoulding operation, and obtains the final heating pad product.

[0038] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention and are not intended to limit the embodiments of the present invention. A person skilled in the art would be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is not necessary and impossible to enumerate all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. An automated silicone wiring molding machine, characterized in that: The invention comprises a frame (1), wherein a workbench (2), a molding mechanism (4), and a wiring mechanism (3) are provided on the frame (1); the workbench (2) is arranged below the molding mechanism (4) and the wiring mechanism (3); the workbench (2) is used to place a wiring mold (6); the wiring mechanism (3) comprises a driving mechanism (31) and a wiring end (32); the driving end of the driving mechanism (31) is connected to a loading shaft (311); the driving mechanism (31) can control the translation and rotation of the loading shaft (311); the wiring end (32) is connected to the ... The head (32) is mounted on the lower end of the loading shaft (311). The wiring end head (32) comprises a guide wire tube (321) and a guide stepping motor (322). The two guide stepping motors (322) are respectively arranged at the left and right ends of the guide wire tube (321). The output ends of the guide stepping motors (322) are connected to guide wheels (323). The left and right ends of the guide wire tube (321) are provided with openings for the edges of the guide wheels (323) to extend into the guide wire tube (321) and press against the wire (5) in the guide wire tube (321).

2. The automated silicone wiring molding machine according to claim 1, characterized in that: The wiring terminal (32) comprises a wire management plate (324), which is arranged above the guide wire tube (321). The wire management plate (324) is provided with a wire threading opening (3241), and an auxiliary wheel (3242) is provided in the wire threading opening (3241).

3. The automated silicone wiring molding machine according to claim 2, characterized in that: The threading opening (3241) is square, and the four auxiliary wheels (3242) are arranged on the four edges of the threading opening (3241).

4. The automated silicone wiring molding machine according to claim 1, characterized in that: The wiring terminal (32) comprises a wire pressing portion (325), which is arranged at the outlet of the guide wire tube (321), and a wire pressing wheel is provided at the lower end of the wire pressing portion (325).

5. The automated silicone wiring molding machine according to claim 4, characterized in that: The wire pressing wheel comprises two wheel assemblies (3251) arranged along the outlet direction of the guide wire tube (321).

6. The automated silicone wiring molding machine according to claim 5, characterized in that: The wheel assembly (3251) comprises a left wheel (3252), a middle wheel (3253), and a right wheel (3254) that are coaxially arranged. The diameter of the middle wheel (3253) is smaller than that of the left wheel (3252) and the right wheel (3254).

7. The automated silicone wiring molding machine according to claim 1, characterized in that: The driving mechanism (31) includes a first linear guide rail (312), a second linear guide rail (313) is movably connected to the first linear guide rail (312), a third linear guide rail (314) is movably connected to the second linear guide rail (313), a carrier plate (315) is movably connected to the third linear guide rail (314), the loading shaft (311) is rotatably connected to the carrier plate (315), and a rotation servo motor (316) is provided on the carrier plate (315) to cooperate with the loading shaft (311).

8. The automated silicone wiring molding machine according to claim 1, characterized in that: The workbench (2) comprises a station guide rail (21) and a station cylinder (22); a mold table (23) is movably connected to the station guide rail (21); and the mold table (23) is connected to the output end of the station cylinder (22).

9. The automated silicone wiring molding machine according to claim 8, characterized in that: The workstation guide rail (21) is provided with a first workstation (211) and a second workstation (212); the wiring mechanism (3) is provided on the side of the first workstation (211); and the molding mechanism (4) is provided above the second workstation (212).

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