Forming device of heart-shaped cake cup

Abstract

The utility model discloses a forming device for a heart-shaped cake cup. The forming device comprises a rack, the mold core is mounted on the rack, and the mold core is provided with a convex part, a concave part and a side wall for connecting the convex part with the concave part; the edge pressing assembly is mounted on the rack, the edge pressing assembly comprises an edge pressing piece and a first driving piece used for driving the edge pressing piece to move towards the side away from / close to the mold core, and the edge pressing piece is provided with a protrusion clamped with the concave part; the embracing mechanism is mounted on the rack, and the embracing assembly comprises a positioning piece, a second driving piece used for driving the positioning piece to move towards the side away from / close to the mold core and an embracing assembly body; wherein the cohesion assembly comprises two cohesion arms and a driving assembly, one ends of the two cohesion arms are hinged to one side of the positioning piece, the driving assembly is used for driving the cohesion arms to rotate around the hinge center of the positioning piece, and the end of the positioning piece can abut against the protruding part. All the components and mechanisms are combined to realize automatic development of all production procedures of the heart-shaped cake cup, so that the labor cost is reduced, and the production efficiency is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of paper product manufacturing equipment, and in particular to a heart-shaped cake cup forming device. BACKGROUND

[0002] Cake cups are widely used as disposable paper serving utensils. In some special occasions, cakes are made into special shapes, and the shape of the cake cup used as a serving utensil also needs to be changed accordingly. For example, in some activity sites or proposal sites, cakes are made into heart shapes, and the shape of the corresponding cake cup also needs to be made into a heart shape to better adapt to the site environment.

[0003] Due to the specific shape of the special-shaped cake cup, the manufacturing of the heart-shaped cake cup is usually achieved by manually surrounding the paper on a core that is also heart-shaped. This method has low production efficiency, and manual operation also has the problem of uneven product quality. CONTENT OF THE UTILITY MODEL

[0004] In order to improve the production efficiency of the heart-shaped cake cup, the present application provides a heart-shaped cake cup forming device.

[0005] The heart-shaped cake cup forming device provided by the present application adopts the following technical scheme:

[0006] A heart-shaped cake cup forming device comprises:

[0007] a rack;

[0008] a core mounted on the rack, the core having a convex portion, a concave portion, and a side wall connecting the convex portion and the concave portion;

[0009] a rim pressing assembly mounted on the rack, the rim pressing assembly comprising a rim pressing member and a first driving member for driving the rim pressing member to move away from or towards the side of the core, the rim pressing member having a protrusion for engaging with the concave portion; and

[0010] a clamping mechanism mounted on the rack, the clamping mechanism comprising a positioning member, a second driving member for driving the positioning member to move away from or towards the side of the core, and a clamping assembly;

[0011] wherein the clamping assembly comprises two clamping arms hinged to one side of the positioning member, and a driving assembly for driving the clamping arms to rotate around the hinge center of the positioning member, and the end of the positioning member can abut against the convex portion.

[0012] By adopting the technical scheme, when the paper is enclosed on the mold core, the convex part and the concave part serve as the positioning points of the paper, the positioning member is used to preliminarily position the paper by sticking the paper to the convex part of the mold core, then the embracing assembly is used to stick the paper to the side wall of the mold core, and finally the protrusion of the edge pressing member is moved towards the concave part and is clamped in the concave part to complete the positioning and forming of the paper. In the whole forming process, the person only needs to place the paper at the convex part of the mold core, and the embracing action is completed by the embracing mechanism, so that the production efficiency is greatly improved.

[0013] Preferably, the embracing mechanism further comprises:

[0014] a sliding seat assembly connected with the second driving member, the sliding seat assembly being capable of sliding away from or close to the mold core relative to the rack driven by the second driving member;

[0015] The positioning member is connected with the sliding seat assembly.

[0016] By adopting the technical scheme, the movement of the sliding seat assembly can drive the positioning member to move away from or close to the mold core to preliminarily position the paper, which facilitates the positioning operation.

[0017] Preferably, the sliding seat assembly comprises a first sliding plate and a second sliding plate arranged adjacent to each other, the first sliding plate being close to the mold core, and the second driving member being connected with the second sliding plate.

[0018] The driving assembly comprises:

[0019] an oscillating arm, one end of the oscillating arm being hinged to the first sliding plate, and the other end of the oscillating arm being hinged to the embracing arm; and

[0020] a third driving member installed on the second sliding plate and connected with the first sliding plate, for driving the first sliding plate to move away from or close to the mold core.

[0021] By adopting the technical scheme, the first sliding plate and the second sliding plate can slide relative to each other, the first sliding plate and the second sliding plate are connected through the third driving member, the second driving member can drive the second sliding plate to slide synchronously, the third driving member can drive the first sliding plate to slide independently, and the sliding of the first sliding plate drives the oscillating of the oscillating arm and the embracing arm to realize the embracing action on the paper.

[0022] Preferably, the embracing mechanism further comprises a buffer assembly, the buffer assembly comprising a support seat connected to the first sliding plate, a connecting rod having one end connected to the positioning member and the other end slidably connected to the support seat, and a first elastic member arranged between the positioning member and the support seat and always having a tendency to drive the positioning member to move towards the mold core.

[0023] By adopting the technical scheme, when the third driving member drives the first sliding plate to slide, the supporting seat is connected with the positioning member through the connecting rod, the positioning member always abuts against the convex part of the mold core under the action of the second driving member to ensure the limiting of the paper, and when the first sliding plate slides, the positioning member can slide relative to the first sliding plate to avoid extrusion and damage between the positioning member and the mold core, the first elastic member can buffer the movement of the first sliding plate, and the stability of the paper during the holding operation of the holding arm is improved.

[0024] Preferably, the holding mechanism further comprises a guide supporting assembly, the guide supporting assembly comprises a guide seat and a guide rail slidably connected to the guide seat; the guide seat is installed on the first sliding plate, and one end of the guide rail is connected with the positioning member.

[0025] By adopting the technical scheme, the supporting assembly is connected with the first sliding plate through the guide seat, which can support the positioning member and improve the connection stability between the positioning member and the first sliding plate. In addition, during the holding operation, when the first sliding plate moves relative to the positioning member, the sliding between the guide seat and the guide rail can ensure that the positioning member always abuts against the convex part of the mold core, reduce the shaking of the first sliding plate during the movement, and improve the movement guiding property of the first sliding plate.

[0026] Preferably, the rack further comprises a limiting member, the rack is provided with a mold core seat, and the mold core is arranged on the mold core seat; when the positioning member moves towards the side of the mold core, the end of the limiting member can abut against the mold core seat to inhibit the movement of the positioning member towards the side of the mold core.

[0027] By adopting the technical scheme, when one side of the paper abuts against the convex part of the mold core, the positioning member moves towards the side of the convex part, the limiting member is arranged to play a mechanical limiting role, and after the positioning member is moved in place, the limiting member abuts against the mold core seat to inhibit the continuous movement of the positioning member towards the mold core, thereby protecting the paper from being damaged by extrusion between the convex part and the positioning member.

[0028] Preferably, the positioning member comprises:

[0029] a positioning seat, the positioning seat is provided with an installation opening;

[0030] a positioning block arranged in the installation opening; and

[0031] a second elastic member arranged in the installation opening and having a tendency to force the positioning block to always move towards the side of the mold core.

[0032] By adopting the technical scheme, when the convex part of the mold core abuts against the positioning member, the positioning block abuts against the convex part in advance, the second elastic member can play a pressure maintaining role on the positioning block, and can ensure that the positioning block always abuts against the convex part, thereby ensuring the stable positioning of the paper.

[0033] Preferably, the end face of the positioning block has a groove matched with the convex part, and the end face of the positioning seat has a guide surface matched with the side wall of the mold core.

[0034] By adopting the technical scheme, the groove is matched with the convex part, the paper can better match the side wall of the mold core during positioning, the guide surface on the positioning seat increases the matching area between the paper and the side wall, and the positioning effect of the paper is better improved.

[0035] Preferably, the paper clamping mechanism further comprises:

[0036] The positioning frame is connected to the rack, and has a positioning surface for the paper to match;

[0037] The limiting assembly comprises a limiting seat and a limiting block connected to one end of the limiting seat; and

[0038] The fourth driving member is installed on the rack and connected to the limiting seat for driving the limiting seat to ascend and descend;

[0039] The limiting block and the positioning surface have a spacing for the paper to be placed.

[0040] By adopting the technical scheme, the paper can be conveniently placed on the positioning surface of the positioning frame, then the fourth driving member drives the limiting seat to ascend, the limiting block abuts against one side of the paper relative to the positioning surface, and the positioning of the paper is realized, so that the operation of placing the paper is only needed, and the production efficiency is better improved.

[0041] Preferably, the pressing assembly further comprises:

[0042] The pressing block is connected to the fifth driving member, and the pressing block is arranged above the mold core; and

[0043] The fifth driving member is installed on the rack for driving the pressing block to move away from or close to the mold core.

[0044] By adopting the technical scheme, after the paper is combined with the mold core, the pressing block can realize the bottom sealing process, only the cake cup bottom sheet is needed to be placed on the mold core, the pressing block is used to cover the bottom sheet and the paper combined with the mold core, and the production efficiency is improved.

[0045] In summary, the present application has at least one of the following beneficial technical effects:

[0046] The paper clamping mechanism, the combining mechanism, the edge pressing assembly and the pressing assembly are used to realize the forming and manufacturing of the heart-shaped cake cup, the labor cost is reduced, and the production efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0047] Figure 1 Structure diagram of the forming device for heart-shaped cake cups;

[0048] Figure 2 Structure diagram of the forming device for heart-shaped cake cups;

[0049] Figure 3 Structure diagram of the forming device for heart-shaped cake cups;

[0050] Figure 4 Structure diagram of the forming device for heart-shaped cake cups;

[0051] Figure 5 Structure diagram of the forming device for heart-shaped cake cups;

[0052] Figure 6 Structure diagram of the forming device for heart-shaped cake cups;

[0053] Figure 7 Structure diagram of the forming device for heart-shaped cake cups;

[0054] Figure 8 Structure diagram of the forming device for heart-shaped cake cups.

[0055] Explanation of reference numerals: 1, frame; 2, mold core; 21, convex part; 22, concave part; 23, side wall; 24, mold core seat; 3, edge pressing assembly; 31, edge pressing member; 311, protrusion; 32, first driving member; 4, embracing mechanism; 41, positioning member; 411, positioning seat; 412, positioning block; 413, second elastic member; 414, hinged block; 415, groove; 416, guide surface; 417, mounting port; 418, mounting hole; 42, second driving member; 43, embracing arm; 44, first sliding plate; 45, second sliding plate; 46, swing arm; 461, hinged shaft; 47, connecting rod; 471, first elastic member; 48, third driving member; 49, support seat; 491, guide rail; 492, guide seat; 5, paper clamping mechanism; 51, positioning frame; 52, positioning surface; 53, fourth driving member; 54, limiting seat; 55, limiting block; 6, pressing assembly; 61, fifth driving member; 62, pressing block; 7, limiting member; 8, connecting plate; 81, adjusting hole; 9, paper. DETAILED DESCRIPTION

[0056] The application will be further described in detail below with reference to the accompanying drawings.

[0057] It should be noted that when an element is referred to as being "on" another element, it can be directly on the other element or intervening elements can also be present. Where, when an element is referred to as being "connected" or "coupled" to another element, it can be directly connected or coupled to the other element or intervening elements can also be present. As used herein the terms "vertical", "horizontal", "left", "right" and the like are merely used for the purpose of illustration and are not intended to be limiting.

[0058] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0059] Figure 1 With Figure 2 A forming device of a heart-shaped cupcake is shown, comprising a frame 1 and a mold core 2, a clamping mechanism 4, a edge-pressing assembly 3, a paper clamping mechanism 5 and a pressing assembly 6 arranged on the frame 1. The paper 9 is pre-placed on the paper clamping mechanism 5 by manual operation to realize the feeding of the paper 9, the mold core 2 is heart-shaped as the inner liner of the cupcake, and the paper 9 is formed into an outer contour by being enclosed on the mold core 2; the clamping mechanism 4 can act on both sides of the paper 9 to gradually enclose the paper 9 on the mold core 2; the edge-pressing assembly 3 presses both sides of the paper 9 after being clamped on the mold core 2 to connect the paper 9 at the head and tail; and the pressing assembly 6 realizes the pressing of the bottom sheet of the cupcake and the outer contour of the paper 9 and finally forms the heart-shaped cupcake.

[0060] In combination Figure 3 The mold core 2 comprises a convex part 21, a concave part 22 and a side wall 23 connecting the convex part 21 and the concave part 22, the convex part 21 is the front end of the heart shape, and the concave part 22 is the rear end of the heart shape. The edge-pressing assembly 3 comprises an edge-pressing piece 31 and a first driving piece 32 connecting the edge-pressing piece 31, the first driving piece 32 is installed on the frame 1, and the edge-pressing piece 31 has a protrusion 311 engaging with the concave part 22, which can realize the pressing of both sides of the paper 9 after being engaged in the concave part 22.

[0061] The clamping mechanism 4 comprises a positioning piece 41, a second driving piece 42 installed on the frame 1, a clamping assembly and a sliding seat assembly. The positioning piece 41 is close to one side of the convex part 21 of the mold core 2 and can abut against the convex part 21 to realize the preliminary pressing and positioning of the paper 9, and the clamping assembly comprises two clamping arms 43 and a driving assembly capable of driving the two clamping arms 43 to swing.

[0062] The slide assembly comprises a first slide plate 44 and a second slide plate 45, the first slide plate 44 is close to one side of the mold core 2, the second driving member 42 is connected with the second slide plate 45, when the second slide plate 45 slides towards the mold core 2, the first slide plate 44 is pushed to slide relative to the rack 1 by the contact with the first slide plate 44, the positioning member 41 is connected on the first slide plate 44, and thus the positioning member 41 can be driven to move towards the side of the mold core 2 when the second slide plate 45 slides.

[0063] The driving assembly comprises a swing arm 46 and a third driving member 48, one end of the swing arm 46 is rotatably connected with the first slide plate 44 through a hinge shaft 461, the other end of the swing arm 46 is also rotatably connected with the embracing arm 43 through a hinge shaft 461, one end of the embracing arm 43 is connected with the positioning member 41. The third driving member 48 is installed on the second slide plate 45 and connected with the first slide plate 44, the first slide plate 44 can be independently driven to slide relative to the rack 1 by the third driving member 48.

[0064] The embracing mechanism 4 further comprises a buffer assembly and a supporting assembly, the supporting assembly comprises a guide seat 492 installed on the first slide plate 44 and a guide rail 491 slidably connected with the guide seat 492, one end of the guide rail 491 is connected with the positioning member 41, the other end of the guide rail 491 is a free end. The buffer assembly comprises a supporting seat 49 installed on the first slide plate 44, a connecting rod 47 and a first elastic member 471. One end of the connecting rod 47 is connected with the positioning member 41, the other end of the connecting rod 47 is a free end, the first elastic member 471 is arranged between the positioning member 41 and the supporting seat 49, and has a tendency to force the positioning member 41 to always move towards the side of the mold core 2. At the same time, the free ends of the guide rail 491 and the connecting rod 47 are both on the side close to the supporting seat 49.

[0065] In combination Figure 4 The rack 1 is further provided with a mold core 2 seat, the mold core 2 is installed on the mold core 2 seat, the top view projection of the mold core 2 falls on the surface of the mold core 2 seat, so that the four edges of the mold core 2 seat protrude from the outer contour of the mold core 2. The positioning member 41 is further provided with a limiting member 7, when the positioning member 41 contacts with the convex part 21 of the mold core 2, the end of the limiting member 7 contacts with the side wall 23 of the mold core 2 seat to inhibit the positioning member 41 from continuously moving towards the side of the mold core 2. In the embodiment, two limiting members 7 are arranged on the positioning member 41 as mechanical limiting structures.

[0066] For reference Figures 5 to 7The positioning member 41 comprises a positioning seat 411, a positioning block 412 and a second elastic member 413. The positioning seat 411 is provided with an installation opening 417 in the middle region, and the positioning block 412 can be accommodated in the installation opening 417. The second elastic member 413 is arranged between the positioning block 412 and the positioning seat 411, and has a tendency to force the positioning block 412 to always be separated from the installation opening 417. In order to improve the installation of the second elastic member 413, the positioning block 412 is provided with an installation hole 418 in the side wall 23 facing the installation opening 417, and the second elastic member 413 is arranged in the installation hole 418.

[0067] The positioning block 412 has a floating space in the installation opening 417 due to the arrangement of the second elastic member 413. The positioning seat 411 is provided with two connecting plates 8 at the upper and lower surfaces, and the two connecting plates 8 respectively abut the upper and lower surfaces of the positioning block 412, so that the positioning block 412 is limited in the installation opening 417. The connecting plate 8 is provided with an elongated adjustment hole 81 at the position of the positioning block 412. After the positioning block 412 is connected with the connecting plate 8 through the fastener, the positioning block 412 can slide relative to the connecting plate 8, and the length of the adjustment hole 81 is the floating space of the positioning block 412 sliding relative to the positioning seat 411.

[0068] The positioning block 412 is provided with a groove 415 on the side away from the installation hole 418. The groove 415 is an arc-shaped groove 415 which is matched with the outer contour of the convex portion 21 of the mold core 2. The positioning seat 411 is provided with a guide surface 416 on the side facing the mold core 2. The guide surface 416 is also arc-shaped and can be matched with and abut the side wall 23 of the mold core 2.

[0069] Referring to Figure 8 The paper clamping mechanism 5 comprises a positioning frame 51 which is connected with the rack 1 and arranged on one side of the mold core 2. The positioning frame 51 is provided with two positioning surfaces 52 on the left and right sides and has a paper 9 abutting and positioning function. The paper clamping mechanism 5 further comprises a fourth driving member 53 installed on the rack 1 and a limiting assembly connected with the fourth driving member 53. The limiting assembly comprises a limiting seat 54 and a limiting block 55 connected with the limiting seat 54. The limiting seat 54 is connected with the fourth driving member 53 and can be vertically lifted and lowered relative to the rack 1. The limiting block 55 can rotate relative to the limiting seat 54 to change the deflection angle of the limiting block 55. The end of the limiting block 55 extends towards the side of the positioning frame 51, and there is a gap between the end of the limiting block 55 and the positioning surface 52 of the positioning frame 51. The gap can accommodate the paper 9, and the extended portion of the mold core 2 can support the lower edge of the paper 9.

[0070] The pressing assembly 6 comprises a fifth driving member 61 installed on the rack 1 and a pressing block 62 connected with the fifth driving member 61. The pressing block 62 is arranged above the mold core 2.

[0071] All the driving members in the embodiment are air cylinders or oil cylinders or other linear propulsion members.

[0072] When the forming device is in operation, the paper 9 is first attached to the positioning surface 52 of the positioning frame 51, and then the fourth driving member 53 lifts the limiting seat 54 so that the limiting block 55 is in contact with the paper 9 to complete the preliminary positioning of the paper 9. Then the second positioning member 41 is actuated to drive the entire embracing mechanism 4 to slide until the limiting member 7 is in contact with the seat of the mold core 2, the positioning member 41 is in contact with the convex portion 21, and the paper 9 is clamped at the same time. At this time, the fourth driving member 53 drives the limiting seat 54 to descend to avoid interference with the embracing assembly. Then the third driving member 48 is actuated to drive the first sliding plate 44 to slide alone. When the first sliding plate 44 slides, the two embracing arms 43 are driven by the two swing arms 46 to swing relative to the positioning member 41 and act on the paper 9 to surround the side wall 23 of the mold core 2. After the embracing of the paper 9 and the mold core 2 is completed, the edge pressing member 31 is actuated to press the overlapping parts on both sides of the paper 9 to achieve pressing. Finally, the upper edge of the paper 9 is turned over, the bottom sheet is placed above the mold core 2, the pressing block 62 acts on the bottom sheet to achieve the pressing with the paper 9, and the entire cake cup forming and manufacturing is completed.

[0073] The above are preferred embodiments of the present application, which do not limit the protection scope of the present application. Therefore, any equivalent changes made on the basis of the structure, shape, and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A forming device for heart-shaped cake cups, characterized in that The application relates to a mold clamping mechanism, which comprises the following components: a frame (1), a mold core (2) installed on the frame (1), wherein the mold core (2) has a convex part (21), a concave part (22) and a side wall (23) connecting the convex part (21) and the concave part (22), a clamping component (3) installed on the frame (1), wherein the clamping component (3) comprises a clamping part (31) and a first driving part (32) for driving the clamping part (31) to move away from or close to the mold core (2), and the clamping part (31) has a protrusion (311) matched with the concave part (22), and a holding mechanism (4) installed on the frame (1), wherein the holding mechanism (4) comprises a positioning part (41), a second driving part (42) for driving the positioning part (41) to move away from or close to the mold core (2) and a holding assembly, wherein the holding assembly comprises two holding arms (43) hinged to one side of the positioning part (41) and a driving assembly for driving the holding arms (43) to rotate around the hinge center of the positioning part (41), and the end of the positioning part (41) can abut against the convex part (21). The holding mechanism (4) further comprises a sliding base assembly connected with the second driving part (42), and the sliding base assembly can be driven by the second driving part (42) to slide relative to the frame (1) away from or close to the mold core (2). The positioning part (41) is connected with the sliding base assembly. The sliding base assembly comprises a first sliding plate (44) and a second sliding plate (45) arranged adjacently, the first sliding plate (44) is close to the mold core (2), and the second driving part (42) is connected with the second sliding plate (45). The driving assembly comprises a swing arm (46) hinged at one end to the first sliding plate (44) and hinged at the other end to the holding arm (43), and a third driving part (48) installed on the second sliding plate (45) and connected with the first sliding plate (44) for driving the first sliding plate (44) to move away from or close to the mold core (2). The holding mechanism (4) further comprises a buffer assembly, which comprises a supporting seat (49) connected with the first sliding plate (44), a connecting rod (47) connected at one end with the positioning part (41) and slidably connected at the other end with the supporting seat (49), and a first elastic part (471) arranged between the positioning part (41) and the supporting seat (49) and always having a trend of forcing the positioning part (41) to move away from or close to the mold core (2).

2. The apparatus according to claim 1, wherein The holding mechanism (4) further comprises a guide supporting assembly, which comprises a guide seat (492) and a guide rail (491) slidably connected with the guide seat (492), the guide seat (492) is installed on the first sliding plate (44), and one end of the guide rail (491) is connected with the positioning part (41). ​ ​ 3. The apparatus according to claim 2, wherein ​ ​ ​ ​ 4. The apparatus according to claim 3, wherein ​ 5. The apparatus according to claim 3, wherein ​ 6. A device for forming a heart-shaped cupcake according to any one of claims 1-5, characterized in that, Further comprising a limiting member (7), the rack (1) is provided with a mold core (2) seat, the mold core (2) is arranged on the mold core (2) seat; when the positioning member (41) moves towards the side of the mold core (2), the end of the limiting member (7) can abut against the mold core (2) seat to inhibit the positioning member (41) from moving towards the side of the mold core (2).

7. A device for forming a heart-shaped cupcake according to any one of claims 1-5, characterized in that, The positioning member (41) comprises: a positioning seat (411) provided with a mounting port (417); a positioning block (412) arranged in the mounting port (417); and a second elastic member (413) arranged in the mounting port (417) and having a tendency to force the positioning block (412) to always move towards the side of the mold core (2).

8. The apparatus according to claim 7, wherein An end surface of the positioning block (412) is provided with a groove (415) matched with the convex part (21), and an end surface of the positioning seat (411) is provided with a guide surface (416) matched with the side wall (23) of the mold core (2).

9. The apparatus according to claim 1, wherein Further comprising a paper clamping mechanism (5), the paper clamping mechanism (5) comprises: a positioning frame (51) connected to the rack (1) and provided with a positioning surface (52) matched with the paper (9); a limiting assembly comprising a limiting seat (54) and a limiting block (55) connected to one end of the limiting seat (54); and a fourth driving member (53) mounted on the rack (1) and connected to the limiting seat (54) for driving the limiting seat (54) to ascend and descend; wherein the limiting block (55) and the positioning surface (52) have a spacing for placing the paper (9).

10. The apparatus according to claim 1, wherein Further comprising a pressing assembly (6), the pressing assembly (6) comprises: a pressing block (62) connected to a fifth driving member (61) and arranged above the mold core (2); and the fifth driving member (61) mounted on the rack (1) for driving the pressing block (62) to move away from or close to the side of the mold core (2).

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