An automatic welding workstation for thermos cup production

Abstract

The present invention relates to the technical field of thermos cup processing, in particular to an automatic welding workstation for thermos cup production, comprising a machine base, a conveying assembly and a pressing assembly installed at the upper end of the machine base, a thermal insulation liner being conveyed in the conveying assembly, a positioning assembly installed at the lower end of the machine base, the positioning assembly comprising a positioning cylinder, a loading tray, a loading arm and a storage cylinder, the positioning cylinder being installed at the lower end of the machine base, the loading tray being installed at the positioning cylinder and the lower end of the machine base, a servo motor being installed at the lower end of the machine base, a rotating shaft being installed at the output end of the servo motor, the loading arm being installed on the circumferential surface of the rotating shaft and being slidably connected with the loading tray, the storage cylinder being installed in the loading tray, and a plurality of liner bases being stored in the storage cylinder, the present invention automatically completes the loading and positioning of the thermal insulation liner and the liner base under the action of the positioning assembly and the conveying assembly, and then after welding is completed, the thermal insulation liner can be automatically unloaded and outputted under the action of the pressing assembly.

Description

Technical Field

[0001] The present invention relates to the technical field of thermos cup processing, and more particularly to an automatic welding workstation for producing thermos cups. Background Art

[0002] A thermos is a cup that can keep heat. It is usually a water container made of ceramic or stainless steel with a vacuum layer. It has a lid on the top and is tightly sealed. The vacuum insulation layer can delay the heat dissipation of the water and other liquids inside to achieve the purpose of heat preservation. The inner liner of a thermos is generally made of stainless steel. The inner liner of a qualified thermos is relatively smooth, and there is no odor when the cup is opened.

[0003] The shortcomings of the existing technology: During the production process of the thermos cup, it is necessary to weld the inner liner base to the lower end of the thermos cup inner liner, seal the lower end of the thermos cup inner liner, and then extract the air in the thermos cup inner liner to form a vacuum environment in the thermos cup inner liner. However, when welding the thermos cup inner liner and the inner liner base, it is usually necessary to manually place the inner liner and the base in a positioning mold, and then manually remove them after the welding is completed. This operation is more troublesome, resulting in low welding efficiency of the thermos cup inner liner. For this reason, we propose an automatic welding workstation for thermos cup production. Summary of the Invention

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides an automatic welding workstation for producing thermos cups to solve the problems existing in the above-mentioned background technology.

[0005] The present invention provides the following technical solution: an automatic welding workstation for producing thermos cups, comprising a machine base, a conveying assembly and a pressing assembly being installed at the upper end of the machine base, a heat-insulating liner being conveyed in the conveying assembly, a positioning assembly being installed at the lower end of the machine base, the positioning assembly comprising a positioning cylinder, a loading tray, a loading arm and a storage cylinder, the positioning cylinder being installed at the lower end of the machine base, the loading tray being installed at the positioning cylinder and the lower end of the machine base, a servo motor being installed at the lower end of the machine base, a rotating shaft being installed at the output end of the servo motor, the loading arm being installed at the circumferential surface of the rotating shaft and being slidably connected to the loading tray, the storage cylinder being installed in the loading tray, and a plurality of liner bases being stored in the storage cylinder;

[0006] A welding assembly is installed at the lower end of the machine base, and the welding assembly includes a mounting frame, a lifting seat, a driving motor, a rotating seat and a welding gun. The mounting frame is installed at the lower end of the machine base, the lifting seat is slidably connected to the mounting frame, a first spring is installed between the lifting seat and the mounting frame, the driving motor is installed at the upper end of the lifting seat, a driving shaft is installed at the output end of the driving motor, the rotating seat is installed on the driving shaft, and the welding gun is installed on the surface of the mounting frame.

[0007] Preferably, the conveying assembly includes a rotating frame, a connecting shaft, a rotating roller, a conveyor belt and a spacer block. A pair of the rotating frames are installed on the upper end of the machine base. A pair of connecting shafts are rotatably connected between the rotating frame and the machine base. The rotating rollers are installed on the circumferential surface of the connecting shafts. The conveyor belt is connected between the rotating rollers. A plurality of the spacers are installed on the surface of the conveyor belt. One of the connecting shafts is connected to the output end of the conveying motor installed at the lower end of the machine base.

[0008] Preferably, a second spring is installed in the storage cylinder, a push plate is installed on the upper end of the second spring, and the inner container base is located on the upper end of the push plate.

[0009] Preferably, the pressing assembly includes a guide seat, a connecting frame, an electric push rod, a connecting block, a connecting rod, a rotating rod and a pressing block. A pair of the guide seats are installed on the upper end of the machine base, the connecting frame is slidably connected to the circumferential surface of the guide seat, the electric push rod is installed on the upper end of the connecting frame, the connecting block is installed on the lower end of the output end of the electric push rod, the connecting rod is installed in the connecting block, the rotating rod is installed in the connecting rod through a bearing, and the pressing block is installed at the lower end of the connecting rod.

[0010] Preferably, a pull rod is slidably connected in the pressure block, a tooth groove is provided on the surface of the pull rod, a rotating shaft is rotatably connected in the pressure block, a support frame and a gear are installed on the circumferential surface of the rotating shaft, the gear is engaged with the tooth groove, a support block is installed in the rotating rod, and a first tension spring is installed between the support block and the pull rod.

[0011] Preferably, a sliding seat is installed on the surface of the connecting frame, a pressure rod is slidably connected inside the sliding seat, and a second tension spring is installed between the pressure rod and the sliding seat.

[0012] Preferably, a cylinder is installed on the upper end of the machine base, and the output end of the cylinder is fixedly connected to the mounting frame.

[0013] Preferably, a conveying shaft is rotatably connected in the machine base, a conveying roller is installed on the circumferential surface of the conveying shaft, and a connecting belt is connected between the conveying rollers.

[0014] Technical effects and advantages of the present invention:

[0015] 1. The present invention can transport the thermal insulation liner through the conveying assembly and make it fall into the positioning cylinder. After the thermal insulation liner falls into the positioning cylinder, the lower end of the thermal insulation liner will overlap and fit together with the liner base in the loading tray. Then, the pressure block is controlled to move downward to press the thermal insulation liner, so that the thermal insulation liner and the liner base are tightly fitted together. At the same time, the connection is pressed down and moved to the position corresponding to the welding gun. At this time, the rotating seat rotates, and then the bearing cooperates to drive the pressure block and the rotating rod to rotate, and then the welding gun is controlled to operate to complete the effect of welding the thermal insulation liner.

[0016] 2. In the present invention, under the action of the first tension spring, the first tension spring will drive the pull rod to move upward, and the pull rod will drive the gear to rotate under the action of the tooth groove, so that the support frame will expand in the pressure block, and then the electric push rod will be controlled to perform a reset, driving the pressure block to rise and reset to a position. At this time, the support frame will be stuck at the bottle mouth of the thermal insulation liner, driving the thermal insulation liner to be taken out of the positioning cylinder, and then the thermal insulation liner is controlled to move backward synchronously with the conveyor belt, and then the electric push rod is controlled to perform a second reset. Since the tension of the second tension spring is much greater than the tension of the first tension spring, the pull rod is easily supported by the pressure rod, so that the pull rod moves downward relative to the pressure block, driving the support frame to rotate and retract into the pressure block, and then the thermal insulation liner will fall downward onto the connecting belt and separate from the pressure block, thereby achieving the effect of taking out and unloading the thermal insulation liner.

[0017] 3. The present invention presses the inner liner base into the storage cylinder. When the storage cylinder is inserted into the lower end of the loading tray, the second spring will push the push plate upward under the action of the second spring, and the push plate will drive the inner liner base to move upward, so that the inner liner base can be continuously replenished in the loading arm in the loading tray. Then, the loading arm rotates, and the position of the inner liner base replenished in one end of the loading arm will be transferred, so that it moves to the bottom of the positioning cylinder and finally falls on the rotating seat, completing the replenishment of the inner liner base. Subsequently, under the action of the conveying component, the thermal insulation liner is continuously replenished in the positioning cylinder, thereby realizing the effect of automatic loading and positioning of the thermal insulation liner and the inner liner base. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 This is a schematic diagram of the present invention when viewed from above;

[0020] Figure 3 is a schematic diagram of the conveying assembly in the present invention;

[0021] Figure 4 is a schematic diagram of a positioning component in the present invention;

[0022] Figure 5 is a schematic cross-sectional view of a positioning assembly in the present invention;

[0023] Figure 6 This is a schematic diagram of the disassembly of the loading arm in the present invention;

[0024] Figure 7 Schematic diagram of the pressure-taking assembly in the present invention;

[0025] Figure 8 A schematic diagram of a partial cross-section of a press-taking assembly in the present invention;

[0026] Figure 9is a schematic diagram of the support frame of the present invention;

[0027] Figure 10 This is a schematic diagram of the heat-insulating liner being loaded in the present invention;

[0028] Figure 11 This is a schematic diagram of the present invention when the pressing block presses down the heat-insulating inner container;

[0029] Figure 12 This is a schematic diagram of the heat-insulating liner of the present invention when it is lifted;

[0030] Figure 13 For the present invention Figure 12 Schematic diagram of part A;

[0031] Figure 14 For the present invention Figure 12 Schematic diagram of part B.

[0032] The accompanying drawings are marked as follows: 1. Machine base; 2. Conveying assembly; 201. Rotating frame; 202. Connecting shaft; 203. Rotating roller; 204. Conveyor belt; 205. Spacer; 206. Conveying motor; 3. Insulated liner; 4. Positioning assembly; 401. Positioning cylinder; 402. Loading tray; 403. Servo motor; 404. Rotating shaft; 405. Loading arm; 406. Storage cylinder; 407. Inner liner base; 408. Second spring; 409. Push plate; 5. Welding assembly; 501. Mounting frame; 502. Lifting seat; 503. First spring; 504. Driving motor; 505. Driving shaft ;506, rotating seat; 507, welding gun; 6, pressing assembly; 601, guide seat; 602, connecting frame; 603, electric push rod; 604, connecting block; 605, connecting rod; 606, rotating rod; 607, bearing; 608, pull rod; 609, tooth groove; 6010, rotating shaft; 6011, supporting frame; 6012, gear; 6013, supporting block; 6014, first tension spring; 6015, sliding seat; 6016, pressure rod; 6017, second tension spring; 6018, cylinder; 6019, pressure block; 7, conveying shaft; 701, conveying roller; 702, connecting belt. DETAILED DESCRIPTION

[0033] The technical solutions of the present invention will be described clearly and completely below in conjunction with the drawings in the present invention. In addition, the forms of the various structures described in the following embodiments are merely examples. The automatic welding workstation for the production of thermos cups involved in the present invention is not limited to the various structures described in the following embodiments. All other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0034] like Figure 1 、 7As shown in Figure 10, in one embodiment, an automatic welding workstation for the production of thermos cups is proposed, including a machine base 1, a conveying assembly 2 and a pressing assembly 6 are installed on the upper end of the machine base 1, a thermal insulation liner 3 is conveyed in the conveying assembly 2, a positioning assembly 4 is installed at the lower end of the machine base 1, the positioning assembly 4 includes a positioning cylinder 401, a loading tray 402, a loading arm 405 and a storage cylinder 406, the positioning cylinder 401 is installed at the lower end of the machine base 1, the loading tray 402 is installed at the positioning cylinder 401 and the lower end of the machine base 1, a servo motor 403 is installed at the lower end of the machine base 1, a rotating shaft 404 is installed at the output end of the servo motor 403, the loading arm 405 is installed on the circumferential surface of the rotating shaft 404 and is slidably connected to the loading tray 402, the storage cylinder 406 is installed in the loading tray 402, and a plurality of liner bases 407 are stored in the storage cylinder 406;

[0035] A welding assembly 5 is installed at the lower end of the machine base 1. The welding assembly 5 includes a mounting frame 501, a lifting seat 502, a driving motor 504, a rotating seat 506 and a welding gun 507. The mounting frame 501 is installed at the lower end of the machine base 1, the lifting seat 502 is slidably connected to the mounting frame 501, and a first spring 503 is installed between the lifting seat 502 and the mounting frame 501. The driving motor 504 is installed at the upper end of the lifting seat 502, and a driving shaft 505 is installed at the output end of the driving motor 504. The rotating seat 506 is installed on the driving shaft 505, and the welding gun 507 is installed on the surface of the mounting frame 501.

[0036] When the embodiment of the present invention is actually used, the thermal insulation liner 3 is placed in the conveying component 2, and the thermal insulation liner 3 can be conveyed by the conveying component 2 so that it falls into the positioning cylinder 401. When the thermal insulation liner 3 falls into the positioning cylinder 401, the lower end of the thermal insulation liner 3 will overlap and fit together with the liner base 407 in the loading tray 402. At this time, the liner base 407 is supported by the rotating seat 506. Then, by controlling the operation of the pressing component 6, the thermal insulation liner 3 in the positioning cylinder 401 is pressed down so that the thermal insulation liner 3 and the liner base 407 are tightly fitted together. Then, the pressing component 6 will press the connection between the thermal insulation liner 3 and the liner base 407 down to the position of the welding gun 507, and then by controlling the operation of the driving motor 504, the driving motor 504 drives the rotating seat 506 to rotate through the driving shaft 505, and then drives the thermal insulation liner 3 and the liner base 407 to rotate at the same time, thereby achieving After the liner 3 and the liner base 407 are welded together, after the welding is completed, the pressing assembly 6 is controlled to rise and reset, and the pressing assembly 6 will drive the welded liner 3 to rise, so that it can be moved out of the positioning cylinder 401, thereby achieving the effect of removing and unloading the liner 3. At the same time, under the action of the first spring 503, the first spring 503 drives the lifting seat 502 to rise, so that the rotating seat 506 is reset. Subsequently, by controlling the operation of the servo motor 403, the servo motor 403 will drive the loading arm 405 to rotate, and the position of the liner base 407 added at one end of the loading arm 405 will be transferred, so that it moves to the bottom of the positioning cylinder 401 and finally falls on the rotating seat 506, completing the replenishment of the liner base 407. Subsequently, under the action of the conveying assembly 2, the thermal insulation liner 3 is replenished again in the positioning cylinder 401, completing the continuous welding operation of the thermal insulation liner 3.

[0037] like Figure 2 and 3 As shown, as a preferred embodiment of the present invention, the conveying assembly 2 includes a rotating frame 201, a connecting shaft 202, a rotating roller 203, a conveyor belt 204 and a spacer 205. A pair of rotating frames 201 are installed at the upper end of the machine base 1. A pair of connecting shafts 202 are rotatably connected between the rotating frames 201 and the machine base 1. The rotating rollers 203 are installed on the circumferential surface of the connecting shafts 202. The conveyor belt 204 is connected between the rotating rollers 203. A plurality of spacers 205 are installed on the surface of the conveyor belt 204. One of the connecting shafts 202 is connected to the output end of the conveying motor 206 installed at the lower end of the machine base 1.

[0038] When the embodiment of the present invention is actually used, by controlling the conveying motor 206 to operate indirectly, the conveying motor 206 will drive the connecting shaft 202 to rotate, the connecting shaft 202 will drive the rotating roller 203 to rotate, and the rotating roller 203 will drive the conveyor belt 204 to rotate. Then, under the action of the spacer 205, when the thermal insulation liner 3 is placed between the spacer blocks 205, the thermal insulation liner 3 can be driven to move a certain position, thereby achieving the effect of continuously replenishing the thermal insulation liner 3.

[0039] like Figure 4 and 5 As shown, as another preferred embodiment of the present invention, a second spring 408 is installed in the storage tube 406 , a push plate 409 is installed on the upper end of the second spring 408 , and the inner container base 407 is located on the upper end of the push plate 409 .

[0040] When the embodiment of the present invention is actually used, the inner liner base 407 is pressed into the storage tube 406, and the storage tube 406 is inserted into the lower end of the loading tray 402. At this time, under the action of the second spring 408, the second spring 408 will push the push plate 409 to move upward, and the push plate 409 will drive the inner liner base 407 to move upward, so that the inner liner base 407 can be continuously replenished in the loading arm 405 in the loading tray 402, thereby facilitating the completion of the replenishment of the inner liner base 407.

[0041] like Figure 7 、 8 As shown in Figure 11, as another preferred embodiment of the present invention, the pressing assembly 6 includes a guide seat 601, a connecting frame 602, an electric push rod 603, a connecting block 604, a connecting rod 605, a rotating rod 606 and a pressing block 6019. A pair of guide seats 601 are installed at the upper end of the machine base 1, the connecting frame 602 is slidably connected to the circumferential surface of the guide seat 601, the electric push rod 603 is installed at the upper end of the connecting frame 602, the connecting block 604 is installed at the lower end of the output end of the electric push rod 603, the connecting rod 605 is installed in the connecting block 604, the rotating rod 606 is installed in the connecting rod 605 through a bearing 607, and the pressing block 6019 is installed at the lower end of the connecting rod 605.

[0042] In actual application of the embodiment of the present invention, after the thermal insulation liner 3 and the liner base 407 are overlapped together, the electric push rod 603 is controlled to operate, and the electric push rod 603 drives the connecting block 604 to move downward, and the connecting block 604 drives the connecting rod 605, the rotating rod 606 and the pressing block 6019 to move downward, and then the pressing block 6019 will press down on the thermal insulation liner 3, so that the thermal insulation liner 3 and the liner base 407 are tightly fitted together, and at the same time, the connection is pressed down and moved to the position corresponding to the welding gun 507. At this time, the rotating seat 506 rotates, and then with the cooperation of the bearing 607, the pressing block 6019 and the rotating rod 606 can be driven to rotate, and then the operation of the welding gun 507 can be controlled to complete the effect of welding the thermal insulation liner 3.

[0043] like Figure 8 、 9 , 12 and 13, as another preferred embodiment of the present invention, a pull rod 608 is slidably connected in the pressure block 6019, a tooth groove 609 is provided on the surface of the pull rod 608, a rotating shaft 6010 is rotatably connected in the pressure block 6019, a support frame 6011 and a gear 6012 are installed on the circumferential surface of the rotating shaft 6010, the gear 6012 is engaged with the tooth groove 609, a support block 6013 is installed in the rotating rod 606, and a first tension spring 6014 is installed between the support block 6013 and the pull rod 608.

[0044] In actual application of the embodiment of the present invention, after the welding of the thermal insulation liner 3 is completed, the first tension spring 6014 will drive the pull rod 608 to move upward, and the pull rod 608 drives the gear 6012 to rotate under the action of the tooth groove 609. The gear 6012 drives the support frame 6011 to rotate through the rotating shaft 6010, so that the support frame 6011 expands in the pressure block 6019, and then controls the electric push rod 603 to perform a reset, driving the pressure block 6019 to rise and reset to a position. At this time, the support frame 6011 will be stuck at the bottle mouth of the thermal insulation liner 3, thereby achieving the effect of driving the thermal insulation liner 3 to be taken out of the positioning cylinder 401.

[0045] like Figure 7 、 8 , 13 and 14 , as another preferred embodiment of the present invention, a slide 6015 is mounted on the surface of the connecting frame 602 , a pressure rod 6016 is slidably connected inside the slide 6015 , and a second tension spring 6017 is mounted between the pressure rod 6016 and the slide 6015 .

[0046] In actual application of the embodiment of the present invention, after the thermal insulation liner 3 is taken out from the positioning cylinder 401, the thermal insulation liner 3 is first controlled to move backward, and then the electric push rod 603 is controlled to perform a second-stage reset. Since the tension of the second tension spring 6017 is much greater than the tension of the first tension spring 6014, the pull rod 608 is easily supported by the pressure rod 6016, so that the pull rod 608 moves downward relative to the pressure block 6019. At this time, the pull rod 608 drives the support frame 6011 to rotate and retract into the pressure block 6019 under the action of the tooth groove 609, the gear 6012 and the rotating shaft 6010. Then the thermal insulation liner 3 will fall downward and separate from the pressure block 6019, thereby achieving the effect of removing and unloading the thermal insulation liner 3.

[0047] In one case of an embodiment of the present invention, since a protrusion is installed on the circumferential surface of the pressure rod 6016, the lowest position of the pressure rod 6016 is restricted, so that only after the thermal insulation liner 3 is taken out of the positioning cylinder 401 and moved upward again, the pull rod 608 will contact the pressure rod 6016, thereby achieving the effect of separating the thermal insulation liner 3 from the pressure block 6019.

[0048] like Figure 1 and 7 As shown, as another preferred embodiment of the present invention, a cylinder 6018 is installed on the upper end of the machine base 1, and the output end of the cylinder 6018 is fixedly connected to the mounting frame 501.

[0049] In actual application of the embodiment of the present invention, after the thermal insulation liner 3 is taken out from the positioning cylinder 401, the cylinder 6018 is controlled to operate, and the cylinder 6018 will drive the mounting frame 501 to move backward. At the same time, the conveying component 2 operates synchronously and moves synchronously with the thermal insulation liner 3. After the welded thermal insulation liner 3 is removed from the upper end of the positioning cylinder 401, another thermal insulation liner 3 will enter the positioning cylinder 401 under the action of the conveying component 2.

[0050] like Figure 1 and 12 As shown in FIG. 1 , as another preferred embodiment of the present invention, a conveying shaft 7 is rotatably connected in the machine base 1 , a circumferential surface of the conveying shaft 7 is mounted with conveying rollers 701 , and connecting belts 702 are connected between the conveying rollers 701 .

[0051] When the embodiment of the present invention is actually used, after the thermal insulation liner 3 moves backward from the top of the positioning cylinder 401, it will be located above the conveyor belt 204. Then, when the support frame 6011 shrinks, the thermal insulation liner 3 will fall between the connecting belts 702. Then, by controlling the operation of the connecting belts 702, the thermal insulation liner 3 can be conveyed, and the thermal insulation liner 3 can be discharged after welding.

[0052] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense, and may refer to mechanical or electrical connections, internal communication between two components, or direct connection. "Up," "down," "left," and "right" are only used to indicate relative positional relationships. When the absolute positions of the objects being described change, the relative positional relationships may also change.

[0053] Secondly: The drawings of the embodiments disclosed in the present invention only involve structures related to the embodiments disclosed in the present invention. Other structures may refer to conventional designs. The same embodiment and different embodiments of the present invention may be combined with each other without conflict.

[0054] Finally: 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 scope of protection of the present invention.

Claims

1. An automatic welding workstation for producing thermos cups, comprising a machine base (1), characterized in that: The upper end of the machine base (1) is equipped with a conveying assembly (2) and a pressing assembly (6), the conveying assembly (2) conveys a heat-insulating liner (3), the lower end of the machine base (1) is equipped with a positioning assembly (4), the positioning assembly (4) comprises a positioning cylinder (401), a loading plate (402), a loading arm (405) and a storage cylinder (406), the positioning cylinder (401) is equipped with the lower end of the machine base (1), the loading plate (402) is equipped with the positioning cylinder (401) and the lower end of the machine base (1), the lower end of the machine base (1) is equipped with a servo motor (403), the output end of the servo motor (403) is equipped with a rotating shaft (404), the loading arm (405) is equipped with a circumferential surface of the rotating shaft (404) and is slidably connected to the loading plate (402), the storage cylinder (406) is equipped with the loading plate (402), and a plurality of liner bases (407) are stored in the storage cylinder (406); A welding assembly (5) is installed at the lower end of the machine base (1), and the welding assembly (5) includes a mounting frame (501), a lifting seat (502), a driving motor (504), a rotating seat (506) and a welding gun (507). The mounting frame (501) is installed at the lower end of the machine base (1), the lifting seat (502) is slidably connected to the mounting frame (501), a first spring (503) is installed between the lifting seat (502) and the mounting frame (501), the driving motor (504) is installed at the upper end of the lifting seat (502), a driving shaft (505) is installed at the output end of the driving motor (504), the rotating seat (506) is installed on the driving shaft (505), and the welding gun (507) is installed on the surface of the mounting frame (501); The pressing assembly (6) comprises a guide seat (601), a connecting frame (602), an electric push rod (603), a connecting block (604), a connecting rod (605), a rotating rod (606) and a pressing block (6019), wherein a pair of the guide seats (601) are mounted on the upper end of the machine base (1), the connecting frame (602) is slidably connected to the circumferential surface of the guide seat (601), the electric push rod (603) is mounted on the upper end of the connecting frame (602), the connecting block (604) is mounted on the lower end of the output end of the electric push rod (603), the connecting rod (605) is mounted in the connecting block (604), the rotating rod (606) is mounted in the connecting rod (605) through a bearing (607), and the pressing block (6019) is mounted on the lower end of the connecting rod (605); A pull rod (608) is slidably connected in the pressure block (6019), a tooth groove (609) is provided on the surface of the pull rod (608), a rotating shaft (6010) is rotatably connected in the pressure block (6019), a support frame (6011) and a gear (6012) are installed on the circumferential surface of the rotating shaft (6010), the gear (6012) is meshed with the tooth groove (609), a support block (6013) is installed in the rotating rod (606), and a first tension spring (6014) is installed between the support block (6013) and the pull rod (608); A sliding seat (6015) is installed on the surface of the connecting frame (602), a pressure rod (6016) is slidably connected inside the sliding seat (6015), and a second tension spring (6017) is installed between the pressure rod (6016) and the sliding seat (6015), and the tension of the second tension spring (6017) is greater than the tension of the first tension spring (6014).

2. The automatic welding workstation for producing thermos cups according to claim 1, characterized in that: The conveying assembly (2) comprises a rotating frame (201), a connecting shaft (202), a rotating roller (203), a conveyor belt (204) and a spacer (205), wherein a pair of the rotating frames (201) are mounted on the upper end of the machine base (1), a pair of connecting shafts (202) are rotatably connected between the rotating frames (201) and the machine base (1), the rotating rollers (203) are mounted on the circumferential surface of the connecting shafts (202), the conveyor belt (204) is connected between the rotating rollers (203), a plurality of spacers (205) are mounted on the surface of the conveyor belt (204), and one of the connecting shafts (202) is connected to the output end of a conveying motor (206) mounted on the lower end of the machine base (1).

3. The automatic welding workstation for producing thermos cups according to claim 1, characterized in that: A second spring (408) is installed in the storage cylinder (406), a push plate (409) is installed on the upper end of the second spring (408), and the inner container base (407) is located on the upper end of the push plate (409).

4. The automatic welding workstation for producing thermos cups according to claim 1, characterized in that: A cylinder (6018) is installed on the upper end of the machine base (1), and the output end of the cylinder (6018) is fixedly connected to the mounting frame (501).

5. The automatic welding workstation for producing thermos cups according to claim 1, characterized in that: A conveying shaft (7) is rotatably connected inside the machine base (1), a conveying roller (701) is mounted on the circumferential surface of the conveying shaft (7), and a connecting belt (702) is connected between the conveying rollers (701).

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