Electric appliance packaging foam forming mold convenient to demold and demolding method

Abstract

The invention discloses an electric appliance packaging foam forming mold convenient to demold and a demolding method.The electric appliance packaging foam forming mold convenient to demold comprises a bearing bottom plate, a plurality of supporting frames A are fixedly connected to the upper surface of the bearing bottom plate, a lower mold body is fixedly connected between the multiple supporting frames A, and two limiting frames are fixedly connected to the front end of the top of the bearing bottom plate; the top ends of the two limiting frames are both slidably connected with displacement sliding rods, a positioning plate is fixedly connected between the top ends of the two displacement sliding rods, and the bottom end of the positioning plate is fixedly connected with an upper mold body matched with the supporting frame A. A material returning assembly is arranged at the bottom end of the lower mold body and used for assisting in demolding of the electric appliance packaging foam. The invention relates to the technical field of electric appliance packaging forming molds. Through controllable rotation of the guide plate, in the overall mold opening process, the demolding shaft rod can be driven to move into the cavity of the lower mold body at the same time, so that a formed electric appliance packaging material can be rapidly demolded, and the production efficiency of the electric appliance packaging material is improved.

Description

Technical Field

[0001] The invention relates to the technical field of electrical appliance packaging molding dies, in particular to an electrical appliance packaging foam molding die and a demoulding method which are easy to demould. Background Art

[0002] Electrical appliances refer to all electrical appliances. From a professional perspective, they mainly refer to electrical devices, equipment and components used to connect and disconnect circuits, change circuit parameters, and achieve control, regulation, switching, detection and protection of circuits or electrical equipment.

[0003] When packaging electrical appliances, foam materials need to be placed on the outside to protect the appliances and prevent them from being damaged during transportation. Currently, packaging foam for electrical appliances is mainly produced through molds.

[0004] However, in the traditional technology, after the electrical packaging foam mold is opened, the formed packaging foam still remains in the cavity of the lower mold, and personnel are required to manually separate the packaging foam from the cavity, which makes the overall demolding inconvenient and greatly affects the production efficiency of the packaging foam.

[0005] To this end, the present invention provides a mold for electrical appliance packaging foam molding and a demoulding method that are easy to demould, so as to solve the above problems. Summary of the invention

[0006] In view of the deficiencies in the prior art, the present invention provides a mold for forming an electrical appliance packaging foam and a demoulding method that are easy to demould, thereby solving the above-mentioned problems.

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions: a mold for forming electrical packaging foam that is easy to demold, comprising a bearing base plate, a plurality of support frames A are fixedly connected to the upper surface of the bearing base plate, a lower mold body is fixedly connected between the plurality of support frames A, the front end of the top of the bearing base plate is fixedly connected to two limit frames, the top ends of the two limit frames are slidably connected to displacement slide bars, a positioning plate is fixedly connected between the top ends of the two displacement slide bars, the bottom end of the positioning plate is fixedly connected to an upper mold body that cooperates with the support frame A, and a material return assembly is provided at the bottom end of the lower mold body, and the material return assembly is used to assist in demolding the electrical packaging foam.

[0008] Preferably, the material stripping assembly includes a displacement push plate, a demoulding shaft, an extension frame A, a transmission seat, a transmission shaft, a guide plate and a guide slot, the bottom end of the lower mold body is slidably connected with a displacement push plate, the top of the displacement push plate is fixedly connected with a plurality of demoulding shafts, the bottom end of the lower mold body is provided with a demoulding hole corresponding to the demoulding shafts one by one, and the demoulding shafts are also slidably connected to the corresponding demoulding holes, both ends of one side of the displacement push plate are fixedly connected with the extension frame A, the top of the bearing base plate is fixedly connected with a transmission seat on the side close to the extension frame A, the middle part of the transmission seat is rotatably connected with the transmission shaft, both ends of the transmission shaft are fixedly connected with the guide plate, the middle parts of the two guide plates are provided with guide slots, the two ends of the top of the positioning plate are fixedly connected with the extension frame B, and one end of the extension frame A and the extension frame B are movably connected to the inside of the guide slot, and one side of the transmission seat is fixedly connected with the support frame B.

[0009] Preferably, the material return assembly also includes an eccentric plate A, a linkage rod, a limit slide rod, a guide seat and a hydraulic cylinder. The middle part of the transmission shaft is fixedly connected to the eccentric plate A, and the end of the eccentric plate A away from the transmission shaft is rotatably connected to the linkage rod. One side of the support frame B is slidably connected to the limit slide rod, one end of the limit slide rod is fixedly connected to the guide seat, and the end of the linkage rod away from the eccentric plate A is also rotatably connected to one end of the guide seat. A hydraulic cylinder is also provided at one end of the support frame B, and the output end of the hydraulic cylinder is also fixedly connected to the guide seat. Both ends of the support frame B are provided with de-dusting assemblies, and the de-dusting assemblies are used to clean the cavity of the lower mold body.

[0010] Preferably, the impurity removal component includes an air cylinder, a push rod, a conductive frame, a displacement plate, a support seat and an air flow nozzle, both ends of the support frame B are fixedly connected to the air cylinder, the top ends of the two air cylinders are slidably connected to the push rods, the top end of the positioning plate is fixedly connected to the two conductive frames, and the top ends of the two push rods are also fixedly connected to the two conductive frames respectively, the push rod one end located inside the air cylinder is fixedly connected to the displacement plate, the outside of the air cylinder is fixedly connected to the support seat, one end of the support seat is rotatably connected to the air flow nozzle, one side of the support seat is fixedly connected to the air supply square tube, and one end of the air flow nozzle is also connected to the air supply square tube through a rotating joint, the bottom end of the outside of the air cylinder is fixedly connected to the air transfer pipe, and the end of the air transfer pipe away from the air cylinder is also fixedly connected to one end of the air supply square tube, a transmission assembly is arranged between the air supply square tube and the air flow nozzle, and the transmission assembly is used to adjust the air outlet direction of the air flow nozzle.

[0011] Preferably, the transmission assembly includes a wind-catching shaft, fan blades, a carrying seat, a pawl and a positioning shaft A, the middle part of the support seat is rotatably connected to the wind-catching shaft, and the wind-catching shaft passes through the air supply square tube, one end of the wind-catching shaft located inside the air supply square tube is fixedly connected to a plurality of fan blades, one side of the air supply square tube is fixedly connected to the carrying seat, the top of the carrying seat is rotatably connected to the pawl, both sides of the carrying seat are fixedly connected to the positioning shaft A, both sides of the pawl are fixedly connected to the positioning shaft B, and a tension spring is arranged between the positioning shaft A and the positioning shaft B, one end of the wind-catching shaft is fixedly connected to a ratchet that cooperates with the pawl, the end of the wind-catching shaft away from the ratchet is fixedly connected to an eccentric plate B, the outer side of the airflow nozzle is fixedly connected to a transmission plate, a transmission through groove is opened in the middle of the transmission plate, and the end of the eccentric plate B away from the wind-catching shaft is also movably connected to the inside of the transmission through groove.

[0012] Preferably, a guide light rod is fixedly connected to the bottom end of the support frame A, and the displacement push plate is vertically slidably connected between a plurality of guide light rods.

[0013] Preferably, one end of the extension frame A and the extension frame B are both fixedly connected with a linkage pin, and the extension frame A and the extension frame B are movably connected inside the guide groove through the linkage pin.

[0014] Preferably, a sealing ring is fixedly connected to the outer side of the displacement plate, and a transition fit is formed between the sealing ring and the inner wall of the air storage cylinder.

[0015] Preferably, a plurality of air flow outlets are provided on the outer side of the air flow nozzle, and an air flow nozzle is fixedly connected to each of the air flow outlets.

[0016] A demoulding method for a mold for forming a foam for electrical packaging that is easy to demould comprises the following steps:

[0017] In the first step, the positioning plate is driven to move by the hydraulic cylinder and the guide plate, so that the upper mold body and the lower mold body are molded together;

[0018] The second step is to inject foam fluid into the cavity between the upper mold body and the lower mold body to form the electrical packaging material in the cavity;

[0019] The third step is to start the hydraulic cylinder to separate the upper mold body from the lower mold body, and push the demoulding shaft into the lower mold body through the guide groove to push out the formed electrical packaging material to achieve demoulding.

[0020] Beneficial Effects

[0021] The present invention provides a mold for forming electrical packaging foam and a demoulding method that are easy to demould. Compared with the prior art, it has the following beneficial effects:

[0022] The mold and demoulding method for forming electrical appliance packaging foam that are easy to demould can simultaneously drive a demoulding shaft rod to move into the main body cavity of the lower mold during the overall mold opening process through the controllable rotation of a guide plate, so that the molded electrical appliance packaging material can be quickly demoulded, thereby improving the production efficiency of the electrical appliance packaging material.

[0023] The mold for forming foam for electrical packaging and the demoulding method, which are easy to demould, can introduce airflow into the cavity of the lower mold body by using an airflow nozzle before the upper mold body and the lower mold body are molded together, so as to blow out impurities in the cavity and avoid manual cleaning by personnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a schematic diagram of the present invention;

[0025] Figure 2 is a side view of the present invention;

[0026] Figure 3 It is a structural schematic diagram of the upper mold body of the present invention;

[0027] Figure 4 It is a schematic diagram of the connection structure between the linkage rod and the guide seat of the present invention;

[0028] Figure 5 It is a schematic diagram of the assembly structure of the hydraulic cylinder of the present invention;

[0029] Figure 6 It is a schematic diagram of the connection structure between the push rod and the conducting frame of the present invention;

[0030] Figure 7 It is a schematic diagram of the internal structure of the air storage cylinder of the present invention;

[0031] Figure 8 It is a schematic diagram of the internal structure of the square gas supply tube of the present invention;

[0032] Fig. 9 The present invention Figure 8 A partial enlarged view of the middle A;

[0033] Fig.10 It is a schematic diagram of the separation structure of the eccentric plate B and the transmission through groove of the present invention.

[0034] In the figure, 1, the bearing base plate; 2, the support frame A; 3, the lower mold body; 4, the limit frame; 5, the displacement slide; 6, the positioning plate; 7, the upper mold body; 8, the material removal component; 9, the displacement push plate; 10, the demoulding shaft; 11, the extension frame A; 12, the transmission seat; 13, the transmission shaft; 14, the guide plate; 15, the guide groove; 16, the extension frame B; 17, the support frame B; 18, the eccentric plate A; 19, the linkage rod; 20, the limit slide; 21, the guide seat; 22, Hydraulic cylinder; 23. De-impurity assembly; 24. Air storage cylinder; 25. Push rod; 26. Conducting frame; 27. Displacement plate; 28. Support seat; 29. ​​Air flow nozzle; 30. Air flow nozzle; 31. Square air supply tube; 32. Air transmission pipeline; 33. Wind-catching shaft rod; 34. Wind-catching fan blades; 35. Carrying seat; 36. Ratchet; 37. Positioning shaft A; 38. Positioning shaft B; 39. Tension spring; 40. Ratchet; 41. Eccentric plate B; 42. Transmission plate; 43. Transmission groove. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. 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.

[0036] Embodiment 1:

[0037] See also Figure 1-10 , a mold for forming electrical packaging foam that is easy to demould, comprising a bearing base plate 1, a plurality of support frames A2 are fixedly connected to the upper surface of the bearing base plate 1, a lower mold body 3 is fixedly connected between the plurality of support frames A2, the front end of the top of the bearing base plate 1 is fixedly connected to two limit frames 4, the top ends of the two limit frames 4 are slidably connected to displacement slide bars 5, a positioning plate 6 is fixedly connected between the top ends of the two displacement slide bars 5, the bottom end of the positioning plate 6 is fixedly connected to an upper mold body 7 that matches the support frame A2, and a material stripping component 8 is arranged at the bottom end of the lower mold body 3, and the material stripping component 8 is used to assist in demoulding the electrical packaging foam;

[0038] The material stripping assembly 8 includes a displacement push plate 9, a demoulding shaft 10, an extension frame A11, a transmission seat 12, a transmission shaft 13, a guide plate 14 and a guide groove 15. The bottom end of the lower mold body 3 is slidably connected with the displacement push plate 9, and the top of the displacement push plate 9 is fixedly connected with a plurality of demoulding shafts 10. The bottom end of the lower mold body 3 is provided with demoulding holes corresponding to the demoulding shafts 10. The demoulding shafts 10 are also slidably connected inside the corresponding demoulding holes. Both ends of one side of the displacement push plate 9 are fixedly connected with the extension frame A11. A transmission seat 12 is fixedly connected to one side of the top of the bearing base plate 1 near the extension frame A11, a transmission shaft 13 is rotatably connected to the middle of the transmission seat 12, both ends of the transmission shaft 13 are fixedly connected to guide plates 14, and the middle of the two guide plates 14 are provided with guide grooves 15, both ends of the top of the positioning plate 6 are fixedly connected to the extension frame B16, and one end of the extension frame A11 and the extension frame B16 are movably connected to the inside of the guide groove 15, and one side of the transmission seat 12 is fixedly connected to the support frame B17;

[0039] In detail, the bottom end of the support frame A2 is fixedly connected with a guide light rod, and the displacement push plate 9 is vertically slidably connected between the plurality of guide light rods. The setting of the guide light rod can provide effective guidance for the displacement of the displacement push plate 9, avoid uncontrollable sliding of the displacement push plate 9, and ensure the stability of the displacement of the demoulding shaft rod 10;

[0040] Furthermore, one end of the extension frame A11 and the extension frame B16 are fixedly connected with a linkage pin, and the extension frame A11 and the extension frame B16 are movably connected inside the guide slot 15 through the linkage pin. By using the setting of the linkage pin, when the guide plate 14 rotates, the linkage pin can be pressed or pushed by the guide slot 15, thereby driving the extension frame A11 and the extension frame B16 to slide accordingly;

[0041] The material withdrawal assembly 8 also includes an eccentric plate A18, a linkage rod 19, a limit slide 20, a guide seat 21 and a hydraulic cylinder 22. The middle part of the transmission shaft 13 is fixedly connected with the eccentric plate A18, and the end of the eccentric plate A18 away from the transmission shaft 13 is rotatably connected with the linkage rod 19. One side of the support frame B17 is slidably connected with the limit slide 20, and one end of the limit slide 20 is fixedly connected with the guide seat 21, and the end of the linkage rod 19 away from the eccentric plate A18 is also rotatably connected to one end of the guide seat 21. A hydraulic cylinder 22 is also provided at one end of the support frame B17, and the output end of the hydraulic cylinder 22 is also fixedly connected to the guide seat 21. Both ends of the support frame B17 are provided with a de-impurity assembly 23, and the de-impurity assembly 23 is used to clean the cavity of the lower mold body 3;

[0042] The impurity removal component 23 includes an air storage cylinder 24, a push rod 25, a conductive frame 26, a displacement sheet 27, a support seat 28 and an air flow nozzle 29. The two ends of the support frame B17 are fixedly connected to the air storage cylinder 24, and the tops of the two air storage cylinders 24 are slidably connected to the push rods 25. The top of the positioning plate 6 is fixedly connected to two conductive frames 26, and the tops of the two push rods 25 are also fixedly connected to the two conductive frames 26 respectively. The end of the push rod 25 located inside the air storage cylinder 24 is fixedly connected to the displacement sheet 27, and the outer side of the air storage cylinder 24 is fixed. A support base 28 is connected, one end of the support base 28 is rotatably connected to an air flow nozzle 29, one side of the support base 28 is fixedly connected to an air supply square tube 31, and one end of the air flow nozzle 29 is also connected to the air supply square tube 31 through a rotary joint, the bottom end of the outer side of the air storage cylinder 24 is fixedly connected to an air transfer pipe 32, and the end of the air transfer pipe 32 away from the air storage cylinder 24 is also fixedly connected to one end of the air supply square tube 31, and a transmission component is provided between the air supply square tube 31 and the air flow nozzle 29, and the transmission component is used to adjust the air outlet direction of the air flow nozzle 29;

[0043] Preferably, a sealing ring is fixedly connected to the outer side of the displacement sheet 27, and a transition fit is formed between the sealing ring and the inner wall of the air storage cylinder 24. By setting the sealing ring, the gap between the displacement sheet 27 and the inner wall of the air storage cylinder 24 can be effectively blocked to prevent airflow from leaking out.

[0044] Furthermore, a plurality of airflow outlets are provided on the outer side of the airflow nozzle 29, and an airflow nozzle 30 is fixedly connected to each airflow outlet. By setting the airflow outlets and the airflow nozzle 30, the airflow inside the airflow nozzle 29 can be guided out in a larger range, effectively reducing the operation blind area of ​​the airflow nozzle 29 and ensuring the application effect of the airflow nozzle 29.

[0045] The transmission assembly includes a wind-catching shaft 33, fan blades 34, a mounting seat 35, a pawl 36 and a positioning shaft A37. The middle part of the support seat 28 is rotatably connected to the wind-catching shaft 33, and the wind-catching shaft 33 passes through the air supply square tube 31. One end of the wind-catching shaft 33 located inside the air supply square tube 31 is fixedly connected to a plurality of fan blades 34. A mounting seat 35 is fixedly connected to one side of the air supply square tube 31. A pawl 36 is rotatably connected to the top of the mounting seat 35. Both sides of the mounting seat 35 are fixedly connected to the positioning shaft A37. The pawl Both sides of 36 are fixedly connected with positioning shafts B38, and a tension spring 39 is arranged between the positioning shaft A37 and the positioning shaft B38, one end of the wind-catching shaft rod 33 is fixedly connected with a ratchet 40 cooperating with the pawl 36, and the end of the wind-catching shaft rod 33 away from the ratchet 40 is fixedly connected with an eccentric plate B41, the outer side of the airflow nozzle 29 is fixedly connected with a transmission plate 42, a transmission slot 43 is opened in the middle of the transmission plate 42, and the end of the eccentric plate B41 away from the wind-catching shaft rod 33 is also movably connected to the inside of the transmission slot 43;

[0046] Embodiment 2:

[0047] This embodiment provides a demoulding method for a mold for forming a foam for electrical packaging that is easy to demould based on the first embodiment, and the steps are as follows:

[0048] In the first step, the positioning plate 6 is driven to move by the hydraulic cylinder 22 and the guide plate 14, so that the upper mold body 7 and the lower mold body 3 are molded together;

[0049] The second step is to inject foam fluid into the cavity between the upper mold body 7 and the lower mold body 3 to form the electrical packaging material in the cavity;

[0050] The third step is to start the hydraulic cylinder 22 to separate the upper mold body 7 from the lower mold body 3, and push the demoulding shaft 10 into the lower mold body 3 through the guide groove 15 to push out the formed electrical packaging material to achieve demoulding.

[0051] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0052] Working principle: After the upper mold body 7 and the lower mold body 3 are molded, a foam fluid is injected into the mold cavity between the upper mold body 7 and the lower mold body 3 to form the electrical packaging material in the mold cavity. When the foam fluid cools, the hydraulic cylinder 22 is started to push the guide seat 21, driving the guide seat 21 to move linearly. Since the linkage rod 19 is connected between the guide seat 21 and the eccentric plate A18, when the guide seat 21 moves, the eccentric plate A18 can be pulled by the linkage rod 19, prompting the transmission shaft 13 to drive the guide plate 14 to rotate. Since the extension frame B16 is connected to the inside of the guide slot 15, when the guide plate 14 rotates, the extension frame B16 can be pushed by the guide slot 15, prompting the positioning plate 6 to drive the upper mold body 7 away from the lower mold body 3 to open the mold;

[0053] In addition, in conjunction with the connection between the extension frame A11 and the guide slot 15, during the rotation of the guide plate 14, the extension frame A11 can be pushed by the guide slot 15, so that the extension frame A11 drives the displacement push plate 9 to follow the displacement, so as to move the demoulding shaft 10 into the cavity of the lower mold body 3, push the formed electrical packaging material upward, so that the electrical packaging material and the cavity of the lower mold body 3 are separated, and demoulding is achieved;

[0054] In the process of the positioning plate 6 moving up, the push rod 25 can be pulled by the conductive frame 26 to change the position of the displacement plate 27 inside the gas storage cylinder 24, and the gas near the air flow nozzle 29 is transmitted to the inside of the gas storage cylinder 24 through the gas supply square tube 31 and the gas transmission pipeline 32. When the positioning plate 6 moves down later, the displacement plate 27 can slide to inject the gas inside the gas storage cylinder 24 into the gas flow nozzle 29 through the gas transmission pipeline 32 and the gas supply square tube 31, and then spray it into the inner cavity of the lower mold body 3 through the gas flow nozzle 29, so as to move the lower mold body 3, impurities in the cavity are blown out, and when the airflow passes through the fan blades 34, the fan blades 34 can be blown. Since the fan blades 34 are supported by the wind-catching shaft 33, the wind-catching shaft 33 can be driven to rotate. Under the connection between the wind-catching shaft 33 and the eccentric plate B41, the eccentric plate B41 can rotate with the wind-catching shaft 33, and the airflow nozzle 29 is driven to swing back and forth through the adaptive adjustment of the eccentric plate B41 inside the transmission groove 43, so as to change the direction of gas ejection from the airflow nozzle 29 and reduce the operating blind area of ​​the airflow nozzle 29.

[0055] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0056] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A mold for forming electrical appliance packaging foam that is easy to demould, characterized in that: The invention comprises a bearing base plate (1), wherein the upper surface of the bearing base plate (1) is fixedly connected with a plurality of support frames A (2), a lower mold body (3) is fixedly connected between the plurality of support frames A (2), the front end of the top of the bearing base plate (1) is fixedly connected with two limit frames (4), the top ends of the two limit frames (4) are slidably connected with displacement slide bars (5), a positioning plate (6) is fixedly connected between the top ends of the two displacement slide bars (5), the bottom end of the positioning plate (6) is fixedly connected with an upper mold body (7) matched with the support frame A (2), and a material stripping component (8) is arranged at the bottom end of the lower mold body (3), and the material stripping component (8) is used to assist in demoulding of the electrical appliance packaging foam.

2. The mold for forming electrical appliance packaging foam that is easy to demould according to claim 1, characterized in that: The material stripping assembly (8) comprises a displacement push plate (9), a demoulding shaft (10), an extension frame A (11), a transmission seat (12), a transmission shaft (13), a guide plate (14) and a guide groove (15); the bottom end of the lower mold body (3) is slidably connected with the displacement push plate (9); the top end of the displacement push plate (9) is fixedly connected with a plurality of demoulding shafts (10); the bottom end of the lower mold body (3) is provided with demoulding holes corresponding to the demoulding shafts (10); the demoulding shafts (10) are also slidably connected inside the corresponding demoulding holes; both ends of one side of the displacement push plate (9) are fixedly connected with the extension frame A (11) A transmission seat (12) is fixedly connected to one side of the top of the bearing base plate (1) near the extension frame A (11), a transmission shaft (13) is rotatably connected to the middle of the transmission seat (12), both ends of the transmission shaft (13) are fixedly connected to guide plates (14), and the middle parts of the two guide plates (14) are provided with guide grooves (15), both ends of the top of the positioning plate (6) are fixedly connected to the extension frame B (16), and one end of the extension frame A (11) and the extension frame B (16) are movably connected to the inside of the guide groove (15), and one side of the transmission seat (12) is fixedly connected to the support frame B (17).

3. The mold for forming electrical appliance packaging foam that is easy to demould according to claim 2, characterized in that: The material-removing assembly (8) further comprises an eccentric plate A (18), a linkage rod (19), a limiting slide rod (20), a guide seat (21) and a hydraulic cylinder (22); the middle part of the transmission shaft (13) is fixedly connected with the eccentric plate A (18); one end of the eccentric plate A (18) away from the transmission shaft (13) is rotatably connected with the linkage rod (19); one side of the support frame B (17) is slidably connected with the limiting slide rod (20); one end of the limiting slide rod (20) is A guide seat (21) is fixedly connected thereto, and one end of the linkage rod (19) away from the eccentric plate A (18) is also rotatably connected to one end of the guide seat (21). A hydraulic cylinder (22) is also provided at one end of the support frame B (17), and the output end of the hydraulic cylinder (22) is also fixedly connected to the guide seat (21). Both ends of the support frame B (17) are provided with a debris removal component (23), and the debris removal component (23) is used to clean the cavity of the lower mold body (3).

4. The mold for forming electrical appliance packaging foam that is easy to demould according to claim 3, characterized in that: The impurity removal component (23) comprises an air storage cylinder (24), a push rod (25), a conductive frame (26), a displacement plate (27), a support seat (28) and an air flow nozzle (29). Both ends of the support frame B (17) are fixedly connected to the air storage cylinder (24). The top ends of the two air storage cylinders (24) are slidably connected to the push rods (25). The top end of the positioning plate (6) is fixedly connected to the two conductive frames (26), and the top ends of the two push rods (25) are also fixedly connected to the two conductive frames (26) respectively. One end of the push rod (25) located inside the air storage cylinder (24) is fixedly connected to the displacement plate (27). A support seat (28) is fixedly connected to the outside, one end of the support seat (28) is rotatably connected to an air flow nozzle (29), one side of the support seat (28) is fixedly connected to an air supply square tube (31), and one end of the air flow nozzle (29) is also connected to the air supply square tube (31) through a rotary joint, the bottom end of the outside of the air storage cylinder (24) is fixedly connected to an air transfer pipe (32), and the end of the air transfer pipe (32) away from the air storage cylinder (24) is also fixedly connected to one end of the air supply square tube (31), and a transmission component is arranged between the air supply square tube (31) and the air flow nozzle (29), and the transmission component is used to adjust the air outlet direction of the air flow nozzle (29).

5. The mold for forming electrical appliance packaging foam that is easy to demould according to claim 4, characterized in that: The transmission assembly comprises a wind-catching shaft (33), fan blades (34), a mounting seat (35), a pawl (36) and a positioning shaft A (37); the middle part of the support seat (28) is rotatably connected with the wind-catching shaft (33), and the wind-catching shaft (33) passes through the air supply square tube (31); one end of the wind-catching shaft (33) located inside the air supply square tube (31) is fixedly connected with a plurality of fan blades (34); one side of the air supply square tube (31) is fixedly connected with the mounting seat (35); the top end of the mounting seat (35) is rotatably connected with the pawl (36); both sides of the mounting seat (35) are fixedly connected with the positioning shaft A (37); Both sides of the ratchet (36) are fixedly connected with a positioning shaft B (38), and a tension spring (39) is arranged between the positioning shaft A (37) and the positioning shaft B (38), one end of the wind-catching shaft (33) is fixedly connected with a ratchet (40) cooperating with the ratchet (36), and the end of the wind-catching shaft (33) away from the ratchet (40) is fixedly connected with an eccentric plate B (41), the outer side of the airflow nozzle (29) is fixedly connected with a transmission plate (42), a transmission groove (43) is opened in the middle of the transmission plate (42), and the end of the eccentric plate B (41) away from the wind-catching shaft (33) is also movably connected to the inside of the transmission groove (43).

6. The mold for forming electrical appliance packaging foam that is easy to demould according to claim 2, characterized in that: The bottom end of the support frame A (2) is fixedly connected to a guide light rod, and the displacement push plate (9) is vertically slidably connected between a plurality of guide light rods.

7. The mold for forming electrical appliance packaging foam that is easy to demould according to claim 2, characterized in that: One end of the extension frame A (11) and the extension frame B (16) are both fixedly connected with a linkage pin, and the extension frame A (11) and the extension frame B (16) are movably connected inside the guide slot (15) through the linkage pin.

8. The mold for forming electrical appliance packaging foam that is easy to demould according to claim 4, characterized in that: A sealing ring is fixedly connected to the outer side of the displacement plate (27), and a transition fit is formed between the sealing ring and the inner wall of the air storage cylinder (24).

9. The mold for forming foam for electrical packaging that is easy to demould according to claim 4, characterized in that: A plurality of air flow outlets are provided on the outer side of the air flow nozzle (29), and an air flow nozzle (30) is fixedly connected to each of the air flow outlets.

10. A demoulding method for a mold for forming a foam for electrical packaging that is easy to demould, characterized in that: Here are the steps: In the first step, the positioning plate (6) is driven to move by the hydraulic cylinder (22) and the guide plate (14), so that the upper mold body (7) and the lower mold body (3) are molded together; The second step is to inject foam fluid into the cavity between the upper mold body (7) and the lower mold body (3) to form the electrical packaging material in the cavity; The third step is to start the hydraulic cylinder (22) to separate the upper mold body (7) from the lower mold body (3), and push the demoulding shaft (10) into the lower mold body (3) through the guide groove (15), so as to push out the formed electrical packaging material and realize demoulding.

Images