Backpack type carrying box forming process and equipment

Abstract

The invention discloses a backpack type portable box forming process and equipment, and relates to the technical field of portable box forming. According to the invention, an efficient heating and cooling mechanism for the injection molding channel, an automatic operation design and accurate molding force control are adopted, so that the production efficiency and the molding quality of the carrying box are remarkably improved. And the exhaust port arranged in the equipment can effectively exhaust bubbles, so that the stability of the forming process and the consistency of products are ensured. And meanwhile, due to the good mold compatibility, the equipment is more flexible when meeting the requirements of different products, and potential safety hazards of manual operation are reduced.

Description

Technical Field

[0001] The invention relates to the technical field of luggage case forming, in particular to a backpack type luggage case forming process and equipment. Background Art

[0002] In the traditional luggage molding process, the formation of bubbles is a common problem, which is mainly caused by the failure to effectively expel air when the plastic melt is injected into the mold. The presence of bubbles not only affects the appearance of the product, but may also reduce its mechanical strength and durability. During the flow of the plastic melt, air is entrained into the mold. Especially when the melt viscosity is high or the injection speed is uneven, the air is more likely to be enclosed in the melt. In addition, if the mold design does not have a good exhaust channel, the bubbles cannot be discharged in time. The presence of bubbles will cause the strength of the molded parts to decrease during use, especially when subjected to external forces or high temperature environments, the weakness of the bubble position may cause the product to crack or break. In addition, bubbles will also affect the visual effect of the molded product, causing appearance defects, thereby affecting market competitiveness. Due to bubble defects, manufacturers often need to perform secondary processing or scrap the molded parts, increasing production costs and time. Summary of the invention

[0003] In order to overcome the defects of the above-mentioned prior art, the present invention provides the following technical solutions: a backpack carrying case molding process and equipment, including a die and a punch, a gap for molding the carrying case is provided between the die and the punch, the gap is equal to the wall thickness of the carrying case, and a plurality of exhaust ports are provided on the punch; an injection channel for injecting plastic melt is provided in the middle of the punch, an electric heating wire is provided at the circumference of the injection channel, and a cooling cavity is provided on the outer side of the injection channel of the punch, the top of the cooling cavity is covered and sealed with a cooling cavity buckle cover, two symmetrically arranged partition plates are provided on the inner wall of the cooling cavity, the top of the partition plate is fixedly matched with the cooling cavity buckle cover, a gap for allowing coolant to pass is provided between the bottom of the partition plate and the top of the cooling cavity, and cooling circulation ports are provided on both sides of the cooling cavity buckle cover.

[0004] Preferably, the two cooling circulation ports are connected to the heat dissipation radiator through a hose, and a water pump is provided at the connection to circulate the coolant in the cooling cavity and the heat dissipation radiator, so as to set the temperature of the electric heating wire inside the injection channel; wherein two symmetrically arranged material discharge and separation electric cylinders are fixed on the outer surface of the two concave molds, and the ends of the telescopic rods of the two material discharge and separation electric cylinders are fixedly matched with the punch.

[0005] Preferably, two upper push rods are symmetrically slidably arranged on the punch, which are used to push down the carrying box attached to the punch after molding and cooling, and an upper push rod return spring is arranged around the top of each upper push rod, and the two ends of the upper push rod return spring are fixedly matched with the upper surface of the punch and the upper push rod return spring respectively.

[0006] Preferably, two lower ejector rods are symmetrically slidably arranged on the top of the die, which are used to eject the carrying box attached to the die after molding and cooling. The bottom ends of the two lower ejector rods are fixed on the lower ejector rod brackets; the lower ejector rods slide with the die along the normal direction of the lower surface of the die, and the upper ejector rods slide with the punch along the normal direction of the upper surface of the punch.

[0007] Preferably, a concave stop block is also slidably installed on the lower surface of the die, and the opening position of the concave stop block is provided with a chamfer, and the edge of the lower push rod bracket in contact with the concave stop block is provided with a chamfer, which is used to push the lower push rod bracket to move in the direction away from the die; a stop block guide rod is fixed on the concave stop block, and the stop block guide rod is slidably installed on the electromagnet, and the electromagnet and the concave stop block are magnetically matched, and a stop block reset spring is also fixed between the electromagnet and the concave stop block, and the stop block reset spring is arranged around the stop block guide rod.

[0008] Preferably, the die is fixed on the die support frame, and the die support frame is slidably mounted on four parallel sliding columns, and the bottom ends of the four sliding columns are fixed with stop support columns, and the diameter of the stop support columns is larger than the diameter of the sliding columns, so that the die support frame overlaps the top of the stop support columns; an upper push rod limit plate is fixed to the top of every two sliding columns, and the two upper push rod limit plates are symmetrically arranged, and the upper push rod limit plates are in contact with and cooperate with the top of the upper push rods, and a downward pressure auxiliary spring is arranged around the outer surface of each sliding column, and the two ends of the downward pressure auxiliary spring are fixedly cooperated with the upper push rod limit plate and the die support frame.

[0009] Preferably, an elastic component bracket is fixed between the four stop support columns, and the elastic component bracket is elastically installed with two symmetrically arranged lower push rod push plates through multiple elastic components, and the two lower push rod push plates are in contact and fit with the lower push rod bracket; a driving frame support frame is also fixed on the stop support column, and two symmetrically arranged driving frame guide slides and a driving frame adjusting motor are fixed on the driving frame support frame, wherein a driving frame is slidably arranged on the two driving frame guide slides, wherein a driving frame adjusting screw is fixed on the output shaft of the driving frame adjusting motor, and the driving frame adjusting screw and the driving frame are threadedly matched.

[0010] Preferably, two sets of driving transmission belt assemblies are symmetrically rotatably mounted on the driving frame, and a synchronous rod shaft is also rotatably mounted on the driving frame, and both ends of the synchronous rod shaft are synchronously driven with the two sets of driving transmission belt assemblies through the two sets of synchronous transmission belt assemblies; two boss blocks are symmetrically fixed on the die support frame, and a driving paddle that contacts and cooperates with the boss block is fixed on the transmission belt of the driving transmission belt assembly, and is used to move the boss block along the axial direction of the sliding column; a driving motor is fixed on the driving frame, and the output shaft of the driving motor is fixed to one of the pulleys in one set of the driving transmission belt assemblies.

[0011] Preferably, all the stop support columns are fixed on the stop support column base, the stop support column base is rotatably mounted on the base, a separation cylinder is movably mounted on the base, a separation rocker arm is movably connected at the movable connection between the base and the stop support column base, the separation rocker arm is fixedly matched with the stop support column base, and the telescopic rod end of the separation cylinder is movably matched with the end of the separation rocker arm.

[0012] Compared with the prior art, the present invention has the following beneficial effects: (1) The multiple exhaust ports in the equipment design of the present invention ensure that bubbles can be discharged in a timely and effective manner during the plastic melt molding process. This avoids molding defects caused by bubble aggregation, ensures the appearance and quality of the final product, and thus improves the market competitiveness of the product; (2) The present invention can accurately control the distance between the die and the stop support column by adjusting the coordination between the drive frame adjustment motor and the drive belt assembly, thereby accurately adjusting the acceleration to which the plastic melt is subjected. This fine control helps to ensure the uniformity and molding quality of the plastic melt during the molding process; (3) The present invention adopts a coordinated design of an electromagnet and an electric cylinder to realize the automation of the unloading and separation process. This not only improves production efficiency, but also reduces the safety hazards of manual operation, reduces labor costs, and makes the production process more intelligent and safe. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0014] Figure 2 It is a structural schematic diagram of the driving frame of the present invention.

[0015] Figure 3 It is a schematic diagram of the structure of the elastic component support of the present invention.

[0016] Figure 4 For the present invention Figure 3 Schematic diagram of the structure at point A in the middle.

[0017] Figure 5 For the present invention Figure 3 Schematic diagram of the structure at point B in the middle.

[0018] Figure 6 It is a schematic diagram of the mold structure of the present invention.

[0019] Figure 7 It is a schematic diagram of the structure of the concave locking block of the present invention.

[0020] In the figure: 101-die; 102-punch; 103-exhaust port; 104-upper ejector; 105-upper ejector return spring; 106-cooling chamber buckle cover; 107-cooling circulation port; 108-injection channel; 109-cooling chamber; 110-partition plate; 111-lower ejector; 112-lower ejector bracket; 113-concave stop block; 114-stop block guide rod; 115-stop block return spring; 116-die support frame; 117-lower ejector push plate; 118-elastic component bracket; 119-stop support column; 120-sliding column; 121-down pressure auxiliary Spring; 122-upper push rod limit plate; 123-drive frame; 124-drive frame support frame; 125-drive frame guide slide; 126-drive frame adjustment motor; 127-drive frame adjustment screw; 128-drive motor; 129-synchronous transmission belt assembly; 130-drive transmission belt assembly; 131-convex column block; 132-drive paddle; 133-unloading separation electric cylinder; 134-base; 135-separation cylinder; 136-separation rocker arm; 137-stop support column base; 138-electromagnet; 139-synchronous rod shaft; 140-elastic component. DETAILED DESCRIPTION

[0021] The following is combined with Figure 1-Figure 7 , and further illustrate the technical solution of the present invention through specific implementation methods.

[0022] The present invention provides a backpack-type carrying case molding process and equipment, comprising a concave mold 101 and a convex mold 102, wherein a gap for molding the carrying case is provided between the concave mold 101 and the convex mold 102, and the gap is equal to the wall thickness of the carrying case, and a plurality of exhaust ports 103 are provided on the convex mold 102; wherein an injection channel 108 for injecting plastic melt is provided in the middle of the convex mold 102, an electric heating wire is provided at the circumference of the injection channel 108, and the convex mold 102 is located at the injection channel A cooling cavity 109 is arranged on the outside of 108, and the top of the cooling cavity 109 is covered and sealed with a cooling cavity buckle cover 106. Two symmetrically arranged partition plates 110 are arranged on the inner wall of the cooling cavity 109. The top of the partition plate 110 is fixedly matched with the cooling cavity buckle cover 106. A gap for the coolant to pass through is arranged between the bottom of the partition plate 110 and the top of the cooling cavity 109, and cooling circulation ports 107 are opened on both sides of the cooling cavity buckle cover 106 located on the partition plate 110. The two cooling circulation ports 107 are connected to the heat dissipation radiator through a hose, and a water pump is arranged at the connection to circulate the coolant inside the cooling cavity 109 and the heat dissipation radiator, which is used to set the temperature of the electric heating wire inside the injection channel 108; wherein two symmetrically arranged material separation electric cylinders 133 are fixed on the outer surfaces of the two concave molds 101, and the ends of the telescopic rods of the two material separation electric cylinders 133 are fixedly matched with the convex mold 102. Two upper push rods 104 are symmetrically slidably arranged on the punch 102, which are used to push down the carrying case attached to the punch 102 after being formed and cooled, and an upper push rod return spring 105 is arranged around the top of each upper push rod 104, and the two ends of the upper push rod return spring 105 are fixedly matched with the upper surface of the punch 102 and the upper push rod return spring 105 respectively.

[0023] Two lower ejector rods 111 are symmetrically slidably provided at the top of the die 101, which are used to eject the carrying case attached to the die 101 after molding and cooling. The bottom ends of the two lower ejector rods 111 are fixed on lower ejector rod brackets 112; the lower ejector rods 111 slide with the die 101 along the normal direction of the lower surface of the die 101, and the upper ejector rods 104 slide with the punch 102 along the normal direction of the upper surface of the punch 102. A concave stop block 113 is also slidably installed on the lower surface of the die 101, and the opening position of the concave stop block 113 is provided with a chamfer, and the edge of the lower push rod bracket 112 that contacts the concave stop block 113 is provided with a chamfer, which is used to push the lower push rod bracket 112 to move in the direction away from the die 101; a stop block guide rod 114 is fixed on the concave stop block 113, and the stop block guide rod 114 is slidably installed on the electromagnet 138, and the electromagnet 138 and the concave stop block 113 are magnetically matched, and a stop block reset spring 115 is also fixed between the electromagnet 138 and the concave stop block 113, and the stop block reset spring 115 is surrounded by the stop block guide rod 114.

[0024] The die 101 is fixed on the die support frame 116, and the die support frame 116 is slidably installed on four parallel sliding columns 120. The bottom ends of the four sliding columns 120 are fixed with stop support columns 119. The diameter of the stop support columns 119 is larger than the diameter of the sliding columns 120, so that the die support frame 116 overlaps the top of the stop support columns 119; an upper push rod limit plate 122 is fixed to the top of every two sliding columns 120, and the two upper push rod limit plates 122 are symmetrically arranged, and the upper push rod limit plates 122 are in contact with the top of the upper push rod 104. A downward pressure auxiliary spring 121 is arranged around the outer surface of each sliding column 120, and the two ends of the downward pressure auxiliary spring 121 are fixedly matched with the upper push rod limit plate 122 and the die support frame 116. An elastic component bracket 118 is fixed between the four stop support columns 119, and the elastic component bracket 118 is elastically installed with two symmetrically arranged lower push rod push plates 117 through multiple elastic components 140, and the two lower push rod push plates 117 are in contact and cooperate with the lower push rod bracket 112; a driving frame support frame 124 is also fixed on the stop support column 119, and two symmetrically arranged driving frame guide slides 125 and a driving frame adjusting motor 126 are fixed on the driving frame support frame 124, wherein a driving frame 123 is slidably arranged on the two driving frame guide slides 125, wherein a driving frame adjusting screw 127 is fixed on the output shaft of the driving frame adjusting motor 126, and the driving frame adjusting screw 127 and the driving frame 123 are threadedly matched. Two sets of driving transmission belt assemblies 130 are symmetrically rotatably installed on the driving frame 123, and a synchronous rod shaft 139 is also rotatably installed on the driving frame 123. The two ends of the synchronous rod shaft 139 are synchronously driven with the two sets of driving transmission belt assemblies 130 through the two sets of synchronous transmission belt assemblies 129; two boss blocks 131 are symmetrically fixed on the die support frame 116, and a driving paddle 132 that contacts and cooperates with the boss block 131 is fixed on the transmission belt of the driving transmission belt assembly 130, which is used to move the boss block 131 along the axial direction of the sliding column 120; a driving motor 128 is fixed on the driving frame 123, and the output shaft of the driving motor 128 is fixed to one of the pulleys in one set of the driving transmission belt assemblies 130. All the stop support columns 119 are fixed on the stop support column base 137, and the stop support column base 137 is rotatably installed on the base 134. A separation cylinder 135 is also movably installed on the base 134. A separation rocker arm 136 is also movably connected at the movable connection between the base 134 and the stop support column base 137. The separation rocker arm 136 is fixedly matched with the stop support column base 137, and the end of the telescopic rod of the separation cylinder 135 is movably matched with the end of the separation rocker arm 136.

[0025] The plastic melt is injected into the gap formed by the female mold 101 and the male mold 102 through the injection channel 108, and then molded. During the molding process of the plastic melt, the drive motor 128 is started, and the drive motor 128 drives the drive belt assembly 130 to rotate (the two drive belt assemblies 130 rotate synchronously through two synchronous drive belt assemblies 129 and a synchronous rod shaft 139). The drive paddle 132 on the drive belt of the drive belt assembly 130 will move the convex column block 131 together. Since the convex column block 131 is fixed on the female mold support frame 116, and the female mold 101 is fixed on the female mold support frame 116, The die 101 will follow the movement, so that the die 101 moves along the axial direction of the sliding column 120 and compresses the downward auxiliary spring 121. When the convex column block 131 moves to the top of the driving transmission belt assembly 130, the driving paddle 132 will separate from the convex column block 131. Under the action of gravity and the downward auxiliary spring 121, the die 101 and the convex column 102 as well as the plastic melt inside will move quickly toward the stop support column 119, thereby hitting the stop support column 119. At this time, the plastic melt will be subjected to a large acceleration, thereby separating the plastic solution and the air bubbles inside (multiple collisions are required). According to the specific situation, the drive frame adjustment motor 126 is controlled, and the output shaft of the drive frame adjustment motor 126 drives the drive frame adjustment screw 127 to rotate, and the drive frame adjustment screw 127 drives the drive frame 123 to slide on the drive frame guide slide 125. This process can adjust the distance between the top of the drive belt assembly 130 and the die support frame 116, and also adjust the position where the boss block 131 and the drive paddle 132 are separated, thereby controlling the distance between the die support frame 116 and the stop support column 119, and then controlling the impact force of the die 101, and adjusting the magnitude of the acceleration of the plastic melt. The separated bubbles will be discharged through the exhaust port 103.

[0026] While waiting for the plastic melt to cool and be formed into a carrying case, the material separation electric cylinder 133 is started, and the telescopic rod of the material separation electric cylinder 133 drives the punch 102 to separate from the die 101. At this time, the carrying case will be attached to the die 101 or the punch 102. Regardless of whether it is attached to the die 101, the electromagnet 138 is started. If it is attached to the die 101, the magnetic force of the electromagnet 138 attracts the concave stop block 113, so that the concave stop block 113 is separated from the lower ejector bracket 112. In this process, the lower ejector bracket 112 is in a free state. At this time, the multiple elastic components 140 Under the elastic force of the lower ejector rod, the lower ejector rod support 112 is pushed by the lower ejector rod push plate 117 to move toward the direction of the die 101, thereby driving all the lower ejector rods 111 to move synchronously, thereby ejecting the carrying case inside the die 101; then the electromagnet 138 is powered off, and the concave locking block 113 is reset under the action of the locking block reset spring 115, and the lower ejector rod support 112 is shoveled up through the opening chamfer of the concave locking block 113 and the chamfer of the lower ejector rod support 112, so that the lower ejector rod support 112 moves in the direction away from the die 101, and the lower ejector rod support 112 is restricted again. If the carrying case is attached to the punch 102, when the punch 102 moves to the top, the upper push rod 104 contacts the upper push rod limit plate 122, thereby squeezing the upper push rod return spring 105. At this time, the upper push rod 104 will slide relative to the punch 102, so that the upper push rod 104 moves downward relative to the punch 102, and the upper push rod 104 will fix the carrying case attached to the punch 102. Then the telescopic rod of the separation cylinder 135 is controlled to drive the separation rocker arm 136 to swing, and the separation rocker arm 136 is fixed to the stop support column base 137 and moves synchronously. At this time, all the stop support columns 119 fixed on the stop support column base 137 will move synchronously. Since the stop support column 119 is provided with a concave mold 101 and a convex mold 102, the carrying case separated from the concave mold 101 or the convex mold 102 will follow the movement, so that the opening direction of the concave mold 101 and the convex mold 102 is vertical, so that the carrying case falls under the action of gravity. At this time, the material separation electric cylinder 133 is controlled again, so that the concave mold 101 and the convex mold 102 are closed and reset again, and then the next carrying case is formed.

Claims

1. A backpack carrying case forming process and equipment, characterized in that: It comprises a concave die (101) and a convex die (102), wherein a gap for forming a carrying case is provided between the concave die (101) and the convex die (102), the gap being equal to the wall thickness of the carrying case, and a plurality of exhaust ports (103) are provided on the convex die (102); An injection channel (108) for injecting plastic melt is provided in the middle of the punch (102), an electric heating wire is provided at the circumference of the injection channel (108), and a cooling chamber (109) is provided on the outer side of the punch (102) of the injection channel (108), the top of the cooling chamber (109) is covered and sealed with a cooling chamber buckle cover (106), and the inner wall of the cooling chamber (109) is provided with two symmetrically arranged partition plates (110), the top of the partition plate (110) is fixedly matched with the cooling chamber buckle cover (106), a gap is provided between the bottom of the partition plate (110) and the top of the cooling chamber (109) for allowing coolant to pass, and cooling circulation ports (107) are provided on both sides of the cooling chamber buckle cover (106) located on the partition plate (110).

2. The backpack-type carrying case forming process and equipment according to claim 1, characterized in that: The two cooling circulation ports (107) are connected to the heat sink through a hose, and a water pump is provided at the connection to circulate the coolant in the cooling cavity (109) and the heat sink, so as to set the temperature of the electric heating wire inside the injection channel (108); Two symmetrically arranged material separation electric cylinders (133) are fixed on the outer surfaces of the two concave dies (101), and the ends of the telescopic rods of the two material separation electric cylinders (133) are fixedly matched with the convex dies (102).

3. The backpack-type carrying case forming process and equipment according to claim 2, characterized in that: Two upper push rods (104) are symmetrically slidably arranged on the punch (102) for pushing down the carrying case attached to the punch (102) after being formed and cooled, and an upper push rod return spring (105) is arranged around the top of each upper push rod (104), and the two ends of the upper push rod return spring (105) are respectively fixedly matched with the upper surface of the punch (102) and the upper push rod return spring (105).

4. The backpack-type carrying case forming process and equipment according to claim 3, characterized in that: Two lower ejector rods (111) are symmetrically and slidably arranged on the top of the concave mold (101) for ejecting the carrying case attached to the concave mold (101) after being formed and cooled, and the bottom ends of the two lower ejector rods (111) are fixed on the lower ejector rod brackets (112); The lower ejector rod (111) is slidably matched with the concave die (101) along the normal direction of the lower surface of the concave die (101), and the upper ejector rod (104) is slidably matched with the convex die (102) along the normal direction of the upper surface of the convex die (102).

5. The backpack-type carrying case forming process and equipment according to claim 4, characterized in that: A concave stop block (113) is also slidably mounted on the lower surface of the concave die (101); an opening position of the concave stop block (113) is provided with a chamfer; an edge of the lower ejector rod support (112) in contact with the concave stop block (113) is provided with a chamfer, which is used to push the lower ejector rod support (112) to move in a direction away from the concave die (101); a stop block guide rod (114) is fixed on the concave stop block (113); the stop block guide rod (114) is slidably mounted on the electromagnet (138); the electromagnet (138) and the concave stop block (113) are magnetically matched; a stop block reset spring (115) is also fixed between the electromagnet (138) and the concave stop block (113); the stop block reset spring (115) is arranged around the stop block guide rod (114).

6. The backpack-type carrying case forming process and equipment according to claim 5, characterized in that: The die (101) is fixed on a die support frame (116), and the die support frame (116) is slidably mounted on four parallel sliding columns (120). Stop support columns (119) are fixed to the bottom ends of the four sliding columns (120), and the diameter of the stop support columns (119) is larger than the diameter of the sliding columns (120), so that the die support frame (116) overlaps the top ends of the stop support columns (119); An upper push rod limit plate (122) is fixed to the top of every two sliding columns (120), and the two upper push rod limit plates (122) are symmetrically arranged. The upper push rod limit plates (122) are in contact with the top of the upper push rod (104). A downward pressure auxiliary spring (121) is arranged around the outer surface of each sliding column (120), and the two ends of the downward pressure auxiliary spring (121) are fixedly matched with the upper push rod limit plates (122) and the die support frame (116).

7. A backpack-type carrying case forming process and equipment according to claim 6, characterized in that: An elastic component bracket (118) is fixed between the four stop support columns (119), and the elastic component bracket (118) is elastically mounted with two symmetrically arranged lower ejector push plates (117) through a plurality of elastic components (140), and the two lower ejector push plates (117) are in contact with the lower ejector bracket (112); A driving frame support frame (124) is also fixed on the stop support column (119), and two symmetrically arranged driving frame guide slide bars (125) and a driving frame adjustment motor (126) are fixed on the driving frame support frame (124), wherein the driving frame (123) is slidably arranged on the two driving frame guide slide bars (125), and a driving frame adjustment screw rod (127) is fixed on the output shaft of the driving frame adjustment motor (126), and the driving frame adjustment screw rod (127) and the driving frame (123) are threadedly matched.

8. The backpack-type carrying case forming process and equipment according to claim 7, characterized in that: Two sets of driving belt assemblies (130) are symmetrically rotatably mounted on the driving frame (123), and a synchronous rod shaft (139) is also rotatably mounted on the driving frame (123). Two ends of the synchronous rod shaft (139) and the two sets of driving belt assemblies (130) are synchronously driven via the two sets of synchronous belt assemblies (129); Two boss blocks (131) are symmetrically fixed on the die support frame (116), and a driving paddle (132) contacting and cooperating with the boss blocks (131) is fixed on the driving belt of the driving belt assembly (130) for driving the boss blocks (131) to move axially along the sliding column (120); A driving motor (128) is fixed on the driving frame (123), and an output shaft of the driving motor (128) is fixed to one of the pulleys in one of the driving belt assemblies (130).

9. A backpack-type carrying case forming process and equipment according to claim 8, characterized in that: All the stop support columns (119) are fixed on the stop support column base (137), the stop support column base (137) is rotatably mounted on the base (134), a separation cylinder (135) is also movably mounted on the base (134), a separation rocker arm (136) is also movably connected at the movable connection between the base (134) and the stop support column base (137), the separation rocker arm (136) is fixedly matched with the stop support column base (137), and the end of the telescopic rod of the separation cylinder (135) is movably matched with the end of the separation rocker arm (136).

10. A backpack-type carrying case forming process and equipment according to claim 9, characterized in that: The following steps are involved: Step 1: injecting plastic melt into the gap formed by the female mold (101) and the male mold (102) through the injection channel (108); Step 2: During the molding process, the driving motor (128) is started to rotate the driving belt assembly (130), and the driving paddle (132) moves the convex column block (131) fixed on the die support frame (116), so as to cause the die (101) to move axially along the sliding column (120); Step 3: When the boss block (131) moves to the top of the driving belt assembly (130), the driving paddle (132) separates from the boss block (131), and the female mold (101) and the male mold (102) move toward the stop support column (119), generating acceleration to discharge bubbles in the plastic melt; Step 4: During the cooling and shaping of the plastic melt, the material separation electric cylinder (133) is started to drive the male mold (102) and the female mold (101) to separate, and the carrying box will be attached to the female mold (101) or the male mold (102); Step 5: according to the different attachment positions of the luggage case, the luggage case is taken out by using the upper push rod (104) and the lower push rod (111); Step 6: After the removal is completed, the concave die (101) and the convex die (102) are closed and reset again by the material separation electric cylinder (133) to prepare for the molding of the next carrying case.

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