Special-shaped rotor type water meter cover forming equipment

By designing a special-shaped rotor type water meter cover forming equipment, and using cylinder drive and heating wire technology, the residual problem of injection molding is solved, achieving efficient molding and material saving effects.

CN222662546UActive Publication Date: 2025-03-25ELSTER METERING (NANTONG) CO LTD
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Patent Information

Application Number
CN202420723305.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-04-09
Publication Date
2025-03-25
Estimated Expiration
2034-04-09

AI Technical Summary

Technical Problem

Existing water meter cover molding equipment is prone to injection molding residues during the molding process, resulting in further polishing and processing of the water meter cover after molding, wasting time and materials.

Method used

A special-shaped rotor type water meter cover forming device is designed, which includes a driving component, an upper mold assembly and a lower mold assembly. Through the cooperation of the first cylinder and the second cylinder, efficient molding and unloading of the injection molding material is achieved, and the residual injection molding material is heated into liquid state by heating wire and reusing it.

Benefits of technology

It effectively solves the problem of residual injection molding, reduces grinding and processing after forming, saves materials and time, and improves production efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses special-shaped rotary wing type water meter cover forming equipment, which belongs to the technical field of injection molding and comprises a water meter cover forming component for forming a water meter cover component. The water meter cover forming assembly comprises a driving assembly, an upper mold assembly and a lower mold assembly, and an injection molding assembly is mounted on the water meter cover forming assembly; a discharging assembly is installed on the water meter cover forming assembly. By means of the mode, after injection molding is conducted, the connecting hole can be blocked by the blocking block, the situation that in the injection molding process, injection molding materials enter the connecting hole, so that redundant parts need to be polished and removed after injection molding is conducted is avoided, the residual injection molding materials in the injection molding hole can be further utilized, and materials are saved; and the formed water meter cover cap can be conveniently discharged.
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Description

Technical Field

[0001] The utility model relates to the technical field of injection molding, in particular to a special-shaped rotary wing water meter cover molding device. Background Art

[0002] The water meter cover is a protective device used to cover the water meter. It can protect the water meter and effectively prevent external debris, dust, rainwater and other substances from entering the water meter, reducing the possibility of damage to the water meter and extending the service life of the water meter.

[0003] When most existing water meter cover molding equipment molds water meter cover, injection molding plastic will remain in the injection molding hole, and the molded water meter cover needs to be further polished, wasting time and injection molding plastic.

[0004] Based on this, the utility model designs a special-shaped rotor-type water meter cover forming device to solve the above problems. Utility Model Content

[0005] In view of the above-mentioned shortcomings of the prior art, the utility model provides a special-shaped rotor-type water meter cover forming device.

[0006] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0007] A special-shaped rotary-wing water meter cover forming device;

[0008] A water meter cover molding assembly including a molded water meter cover assembly;

[0009] The water meter cover molding assembly comprises a driving assembly, an upper mold assembly and a lower mold assembly, and the upper mold assembly and the lower mold assembly are both connected to the driving assembly;

[0010] An injection molding component for injection molding is installed on the water meter cover molding component;

[0011] A material cutting component for cutting materials is installed on the water meter cover forming component.

[0012] Furthermore, the driving assembly includes a mounting plate, a first cylinder, a guide rod and a connecting rod. The left end of the mounting plate is fixedly connected to the first cylinder, the right end of the mounting plate is fixedly connected to the guide rods all around, the lower mold assembly and the upper mold assembly are both connected to the guide rods, and the output end of the first cylinder is fixedly connected to the connecting rod, which is connected to the upper mold assembly.

[0013] Furthermore, the upper mold assembly includes an upper mold mounting plate, a shell mold core, a support forming groove 1, a circular groove, a round rod, a pin forming groove, a cam follower, a connecting plate, a slide groove and an opening forming block. The upper mold mounting plate is sleeved on the guide rod and is slidably connected to the guide rod. The right end of the upper mold mounting plate is fixedly connected to the shell mold core. The right end of the upper mold mounting plate is provided with a support forming groove 1 of a forming support. Circular grooves are provided on the front and rear end inner walls of the support forming groove 1. The round rod is embedded in the circular groove and is slidably connected to the circular groove. A pin forming groove for a forming pin is provided at the inner end of the round rod. The outer end of the round rod is fixedly connected to a cam follower. Two connecting plates are both connected to the lower mold assembly. A slide groove is provided on the connecting plate. The two slide grooves are mirror-imaged. The cam follower is embedded in the slide groove on the same side and is rollingly connected to the slide groove. The rear end of the shell mold core is fixedly connected to an opening forming block for forming an opening.

[0014] Furthermore, the right end of the connecting rod is fixedly connected to the left end of the upper mold mounting plate, and the upper mold mounting plate and the shell mold core are both connected to the blanking assembly.

[0015] Furthermore, the slide groove includes a left horizontal groove, a middle quarter arc groove and a right horizontal groove connected in sequence, and the connection between the left horizontal groove and the right horizontal groove and the middle quarter arc groove adopts an arc transition connection, and the left horizontal groove is located outside the right horizontal groove.

[0016] Furthermore, the lower mold assembly includes a lower mold mounting plate, a shell molding groove, a second support molding groove, a handle molding groove and an exhaust hole. The right ends of the guide rods are fixedly connected to the lower mold mounting plate. The left end of the lower mold mounting plate is provided with a shell molding groove that cooperates with the shell mold core to mold the water meter cover shell. The lower side of the left end of the lower mold mounting plate is provided with a handle molding groove for molding a handle. The handle molding groove is connected to the shell molding groove. The upper side of the left end of the lower mold mounting plate is provided with a second support molding groove that cooperates with the first support molding groove to mold a support. The second support molding groove is connected to the shell molding groove. The upper end of the lower mold mounting plate is provided with an exhaust hole, which is connected to the second support molding groove. The lower mold mounting plate and the shell molding groove are both connected to the injection molding assembly.

[0017] Furthermore, the right ends of the two connecting plates are respectively fixedly connected to the front and rear sides of the upper end of the lower mold mounting plate.

[0018] Furthermore, the injection molding component includes a support seat, a second cylinder, a blocking block, a connecting hole and an injection hole. The right end of the lower mold mounting plate is fixedly connected to the support seat, the right end of the support seat is fixedly connected to the second cylinder, the output end of the second cylinder is fixedly connected to the blocking block, and the right end of the lower mold mounting plate is provided with a connecting hole and an injection hole. The right end of the injection hole is inclined upward, the lower left end of the injection hole is connected with the left end of the connecting hole, the blocking block is embedded in the connecting hole and is slidably connected with the connecting hole, the connecting hole is connected with the shell molding groove, and the left end of the blocking block is flush with the inner wall of the right end of the shell molding groove.

[0019] Furthermore, an injection hole is formed at the upper end of the lower mold mounting plate, the lower end of the injection hole is connected with the left end of the connecting hole, and the injection hole is a vertical injection hole.

[0020] Furthermore, the blanking assembly includes a blanking rod and a spring. The right ends of the two blanking rods are respectively embedded in the openings on the upper mold mounting plate and the shell mold core and are slidably connected to the upper mold mounting plate and the shell mold core. The right end of the blanking rod is flush with the right end of the shell mold core. A spring is sleeved on the blanking rod, and the two ends of the spring are respectively fixedly connected to the upper mold mounting plate and the blanking rod.

[0021] The utility model has the following technical effects:

[0022] During molding, the first cylinder drives the upper mold mounting plate to move right, the upper mold mounting plate drives the blanking assembly and the round rod to move right, the round rod drives the cam follower to roll to the right along the slide groove, thereby driving the round rod to move inward and be flush with the front and rear end inner walls of the support molding groove one respectively, the upper mold mounting plate continues to move to the right, until the upper mold mounting plate is in contact with the lower mold mounting plate, and the injection molding assembly is used to inject and mold the water meter cover into the shell molding groove, and during injection molding, the air in the mold is discharged through the exhaust hole. After molding, the first cylinder drives the upper mold mounting plate to move left, the upper mold mounting plate drives the blanking assembly and the round rod to move left, the round rod drives the cam follower to roll to the left along the slide groove, thereby driving the round rod to move outward and disengage from the molded pin, the upper mold mounting plate continues to move right, driving the blanking assembly to move right under the action of the mounting plate to realize the blanking of the water meter cover;

[0023] During the injection molding of the utility model, the second cylinder drives the block to move rightward until the left end of the block is located at the right side of the lower end of the injection hole, and the external injection molding device injects and molds the water meter cover through the injection hole into the connecting hole and the shell molding groove. After the injection molding is completed, the second cylinder drives the block to move rightward until the left end of the block is flush with the inner wall of the right end of the shell molding groove, and the injection molding is completed. During the next injection molding, the heating wire heats the injection plastic remaining in the injection hole into a liquid state, and then is injected into the shell molding groove by the external injection molding device, thereby saving materials.

[0024] After the utility model is injected, the block will block the connection hole to prevent the injection plastic from entering the connection hole during injection molding, thereby causing the need to polish and remove excess parts after injection molding, and the injection plastic remaining in the injection hole can be further utilized, saving materials;

[0025] When the utility model unloads, the upper mold mounting plate moves to the left, driving the unloading rod to move to the right under the action of the mounting plate to compress the spring, and the right end of the unloading rod pushes out the formed water meter cover to realize the unloading of the water meter cover. During the next injection molding, the first cylinder drives the upper mold mounting plate to move to the right, and the unloading rod is reset under the elastic action of the spring, and the upper mold mounting plate continues to drive the unloading rod, the spring and the round rod to move to the right until the round rod and the lower mold mounting plate are in close contact. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0027] Figure 1 A three-dimensional view of a special-shaped rotary wing water meter cover forming device of the utility model Figure 1 ;

[0028] Figure 2 It is a front view of a special-shaped rotary-wing water meter cover forming device of the utility model;

[0029] Figure 3 It is a top view of a special-shaped rotary-wing water meter cover forming device of the utility model;

[0030] Figure 4 A three-dimensional view of a special-shaped rotary wing water meter cover forming device of the utility model Figure 2 ;

[0031] Figure 5 A three-dimensional view of a special-shaped rotary wing water meter cover forming device of the utility model Figure 3 ;

[0032] Figure 6 For along Figure 2 AA direction cross-sectional view;

[0033] Figure 7 For along Figure 3 BB direction cross-sectional view;

[0034] Figure 8 for Figure 6 Enlarged view of point C in the middle;

[0035] Fig. 9 for Figure 7 The enlarged view of point D in the middle;

[0036] Fig.10 It is a stereoscopic diagram of a water meter cover assembly of a special-shaped rotor-type water meter cover forming device of the utility model.

[0037] The numbers in the figure represent:

[0038] 1. Water meter cover forming assembly; 11. Driving assembly; 111. Mounting plate; 112. First cylinder; 113. Guide rod; 114. Connecting rod; 12. Upper die assembly; 121. Upper die mounting plate; 122. Shell die core; 123. Support forming groove 1; 124. Round groove; 125. Round rod; 126. Pin forming groove; 127. Cam follower; 128. Connecting plate; 129. Slide; 1210. Opening forming block; 13. Lower die assembly 1. Parts; 131. Lower mold mounting plate; 132. Shell molding groove; 133. Support molding groove II; 134. Handle molding groove; 135. Exhaust hole; 2. Injection molding component; 21. Support seat; 22. Second cylinder; 23. Block; 24. Connecting hole; 25. Injection molding hole; 3. Feeding assembly; 31. Feeding rod; 32. Spring; 4. Water meter cover assembly; 41. Water meter cover shell; 42. Support; 43. Opening; 44. Handle; 45. Pin. DETAILED DESCRIPTION

[0039] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0040] The utility model is further described below in conjunction with embodiments.

[0041] The terms “left”, “right”, “front”, “back”, “up” and “down” mentioned in the following description are oriented in the viewing direction of the front view.

[0042] Example 1

[0043] Please refer to the instruction manual Figure 1-10 , a special-shaped rotary vane water meter cover forming equipment;

[0044] It includes a water meter cover assembly 4;

[0045] Also includes a water meter cover forming assembly 1 that forms a water meter cover assembly 4;

[0046] The water meter cover molding assembly 1 comprises a driving assembly 11, an upper mold assembly 12 and a lower mold assembly 13, and the upper mold assembly 12 and the lower mold assembly 13 are both connected to the driving assembly 11;

[0047] The water meter cover molding component 1 is provided with an injection molding component 2 for injection molding;

[0048] The water meter cover molding assembly 1 is provided with a material cutting assembly 3 for cutting materials.

[0049] The driving component 11 of the water meter cover molding component 1 drives the upper mold component 12 to move to the right and fit into contact with the lower mold component 13, and the water meter cover component 4 is injected and molded into the upper mold component 12 and the lower mold component 13 through the injection molding component 2. After molding, the driving component 11 drives the upper mold component 12 to move to the left away from the lower mold component 13, and drives the unloading component 3 to unload the molded water meter cover component 4.

[0050] Example 2

[0051] like Figure 1-10 As shown, as a preferred embodiment of the utility model, there is a water meter cover assembly 4 in the prior art, which includes a water meter cover shell 41, a support 42, an opening 43, a handle 44 and a pin 45. One side of the water meter cover shell 41 is fixedly connected to two symmetrically arranged supports 42, and the other side of the water meter cover shell 41 is fixedly connected to a handle 44. The outer ends of the supports 42 are fixedly connected to pins 45, and the water meter cover shell 41 is provided with an opening 43.

[0052] The driving assembly 11 includes a mounting plate 111, a first cylinder 112, a guide rod 113 and a connecting rod 114. The left end of the mounting plate 111 is fixedly connected to the first cylinder 112, and the right end of the mounting plate 111 is fixedly connected to the guide rods 113 all around. The lower mold assembly 13 and the upper mold assembly 12 are both connected to the guide rod 113. The output end of the first cylinder 112 is fixedly connected to the connecting rod 114, and the connecting rod 114 is connected to the upper mold assembly 12.

[0053] The upper mold assembly 12 includes an upper mold mounting plate 121, a shell mold core 122, a support molding groove 123, a circular groove 124, a round rod 125, a pin molding groove 126, a cam follower 127, a connecting plate 128, a slide groove 129 and an opening molding block 1210. The upper mold mounting plate 121 is sleeved on the guide rod 113 and is slidably connected to the guide rod 113. The right end of the upper mold mounting plate 121 is fixedly connected to the shell mold core 122. The right end of the upper mold mounting plate 121 is provided with a support molding groove 123 for forming a support 42. The front and rear end inner walls of the support molding groove 123 A circular groove 124 is provided in each of them, a round rod 125 is embedded in the circular groove 124 and is slidingly connected with the circular groove 124, a pin forming groove 126 of a forming pin 45 is provided at the inner end of the round rod 125, a cam follower 127 is fixedly connected to the outer end of the round rod 125, two connecting plates 128 are connected to the lower mold assembly 13, a slide groove 129 is provided on the connecting plate 128, the two slide grooves 129 are mirror-set, the cam follower 127 is embedded in the slide groove 129 on the same side and is rollingly connected with the slide groove 129, and an opening forming block 1210 for forming the opening 43 is fixedly connected to the rear end of the shell mold core 122.

[0054] The right end of the connecting rod 114 is fixedly connected to the left end of the upper mold mounting plate 121 , and the upper mold mounting plate 121 and the shell mold core 122 are both connected to the blanking assembly 3 .

[0055] The slide groove 129 includes a left horizontal groove, a middle quarter arc groove and a right horizontal groove connected in sequence. The connection between the left horizontal groove and the right horizontal groove and the middle quarter arc groove adopts an arc transition connection. The left horizontal groove is located outside the right horizontal groove.

[0056] The lower mold assembly 13 includes a lower mold mounting plate 131, a shell molding groove 132, a support molding groove 133, a handle molding groove 134 and an exhaust hole 135. The right ends of the guide rods 113 are fixedly connected to the lower mold mounting plate 131. The left end of the lower mold mounting plate 131 is provided with a shell molding groove 132 for matching the shell mold core 122 to mold the water meter cover shell 41. The lower side of the left end of the lower mold mounting plate 131 is provided with a handle molding groove 134 for molding the handle 44. The handle molding groove 134 is connected to the shell molding groove 132, and a support molding groove 133 cooperating with the support molding groove 123 to form the support 42 is provided on the upper side of the left end of the lower mold mounting plate 131. The support molding groove 133 is connected to the shell molding groove 132, and an exhaust hole 135 is provided at the upper end of the lower mold mounting plate 131. The exhaust hole 135 is connected to the support molding groove 133, and the lower mold mounting plate 131 and the shell molding groove 132 are both connected to the injection molding component 2.

[0057] The right ends of the two connecting plates 128 are fixedly connected to the front and rear sides of the upper end of the lower mold mounting plate 131 respectively.

[0058] During molding, the first cylinder 112 drives the upper mold mounting plate 121 to move rightward, the upper mold mounting plate 121 drives the blanking assembly 3 and the round rod 125 to move rightward, the round rod 125 drives the cam follower 127 to roll rightward along the slide groove 129, thereby driving the round rod 125 to move inward and be flush with the front and rear end inner walls of the support molding groove 123 respectively, the upper mold mounting plate 121 continues to move rightward until the upper mold mounting plate 121 and the lower mold mounting plate 131 are in contact with each other, and the injection molding assembly 2 is used to inject and mold into the shell molding groove 132 The water meter cover is formed by the first cylinder 112, and during injection molding, the air in the mold is discharged through the exhaust hole 135. After molding, the upper mold mounting plate 121 is driven by the first cylinder 112 to move to the left, and the upper mold mounting plate 121 drives the blanking component 3 and the round rod 125 to move to the left. The round rod 125 drives the cam follower 127 to roll to the left along the slide groove 129, thereby driving the round rod 125 to move outward and disengage from the molded pin 45. The upper mold mounting plate 121 continues to move to the right, driving the blanking component 3 to move to the right under the action of the mounting plate 111 to realize the blanking of the water meter cover;

[0059] The injection molding component 2 includes a support seat 21, a second cylinder 22, a blocking block 23, a connecting hole 24 and an injection hole 25. The right end of the lower mold mounting plate 131 is fixedly connected to the support seat 21, the right end of the support seat 21 is fixedly connected to the second cylinder 22, the output end of the second cylinder 22 is fixedly connected to the blocking block 23, the right end of the lower mold mounting plate 131 is provided with a connecting hole 24 and an injection hole 25, the right end of the injection hole 25 is inclined upward, a plurality of heating wires are fixedly installed on the inner wall of the injection hole 25, the lower left end of the injection hole 25 is connected with the left end of the connecting hole 24, the blocking block 23 is embedded in the connecting hole 24 and is slidably connected with the connecting hole 24, the connecting hole 24 is connected with the shell molding groove 132, and after injection molding, the left end of the blocking block 23 is flush with the inner wall of the right end of the shell molding groove 132.

[0060] During injection molding, the second cylinder 22 drives the block 23 to move rightward until the left end of the block 23 is located at the right side of the lower end of the injection hole 25, and the external injection molding device injects and molds the water meter cover through the injection hole 25 into the connecting hole 24 and the shell molding groove 132. After the injection molding is completed, the second cylinder 22 drives the block 23 to move rightward until the left end of the block 23 is flush with the inner wall of the right end of the shell molding groove 132, and the injection molding is completed. During the next injection molding, the heating wire heats the injection plastic remaining in the injection hole 25 into a liquid state, and then is injected into the shell molding groove 132 by the external injection molding device, saving materials.

[0061] After the utility model is injected, the block 23 will block the connection hole 24 to prevent the injection plastic from entering the connection hole 24 during injection molding, thereby causing the need to polish and remove the excess part after injection molding, and the injection plastic remaining in the injection hole 25 will be further utilized, saving materials;

[0062] The blanking assembly 3 includes a blanking rod 31 and a spring 32. The right ends of the two blanking rods 31 are respectively embedded in the openings on the upper mold mounting plate 121 and the shell mold core 122 and are slidably connected to the upper mold mounting plate 121 and the shell mold core 122. The right end of the blanking rod 31 is flush with the right end of the shell mold core 122. A spring 32 is sleeved on the blanking rod 31, and the two ends of the spring 32 are fixedly connected to the upper mold mounting plate 121 and the blanking rod 31 respectively.

[0063] During unloading, the upper mold mounting plate 121 moves to the left, driving the unloading rod 31 to move to the right under the action of the mounting plate 111 to compress the spring 32. The right end of the unloading rod 31 pushes out the formed water meter cover to realize unloading of the water meter cover. During the next injection molding, the first cylinder 112 drives the upper mold mounting plate 121 to move to the right, and the unloading rod 31 is reset under the elastic action of the spring 32. The upper mold mounting plate 121 continues to drive the unloading rod 31, the spring 32 and the round rod 125 to move to the right until the round rod 125 and the lower mold mounting plate 131 are in contact with each other.

[0064] The utility model facilitates the unloading of the formed water meter cover.

[0065] Example 3

[0066] like Figure 1-10 As shown, as a preferred embodiment of the utility model, preferably, an injection hole 25 is provided at the upper end of the lower mold mounting plate 131, and the lower end of the injection hole 25 is connected to the left end of the connecting hole 24, and the injection hole 25 is a vertical injection hole.

[0067] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A special-shaped rotary vane water meter cover forming device, characterized in that: A water meter cover forming assembly (1) comprising a formed water meter cover assembly (4); The water meter cover molding assembly (1) comprises a driving assembly (11), an upper mold assembly (12) and a lower mold assembly (13), wherein the upper mold assembly (12) and the lower mold assembly (13) are both connected to the driving assembly (11); An injection molding component (2) for injection molding is installed on the water meter cover molding component (1); A material cutting component (3) for cutting materials is installed on the water meter cover forming component (1).

2. The special-shaped rotary vane water meter cover forming equipment according to claim 1, characterized in that: The driving assembly (11) comprises a mounting plate (111), a first cylinder (112), a guide rod (113) and a connecting rod (114); the left end of the mounting plate (111) is fixedly connected to the first cylinder (112); the right end of the mounting plate (111) is fixedly connected to the guide rod (113) at all four sides; the lower mold assembly (13) and the upper mold assembly (12) are both connected to the guide rod (113); the output end of the first cylinder (112) is fixedly connected to the connecting rod (114); and the connecting rod (114) is connected to the upper mold assembly (12).

3. The special-shaped rotary vane water meter cover forming equipment according to claim 2, characterized in that: The upper mold assembly (12) comprises an upper mold mounting plate (121), a shell mold core (122), a support molding groove (123), a circular groove (124), a round rod (125), a pin molding groove (126), a cam follower (127), a connecting plate (128), a sliding groove (129) and an opening molding block (1210); the upper mold mounting plate (121) is sleeved on the guide rod (113) and is slidably connected to the guide rod (113); the right end of the upper mold mounting plate (121) is fixedly connected to the shell mold core (122); the right end of the upper mold mounting plate (121) is provided with a support molding groove (123) of a molding support (42); the front and rear end inner walls of the support molding groove (123) are A circular groove (124) is provided on each of the two connecting plates (128). The round rod (125) is embedded in the circular groove (124) and is slidably connected to the circular groove (124). A pin forming groove (126) for a forming pin (45) is provided on the inner end of the round rod (125). A cam follower (127) is fixedly connected to the outer end of the round rod (125). Two connecting plates (128) are connected to the lower mold assembly (13). A sliding groove (129) is provided on the connecting plate (128). The two sliding grooves (129) are arranged in a mirror image. The cam follower (127) is embedded in the sliding groove (129) on the same side and is rollingly connected to the sliding groove (129). An opening forming block (1210) for forming an opening (43) is fixedly connected to the rear end of the shell mold core (122).

4. The special-shaped rotary vane water meter cover forming equipment according to claim 3, characterized in that: The right end of the connecting rod (114) is fixedly connected to the left end of the upper mold mounting plate (121), and the upper mold mounting plate (121) and the shell mold core (122) are both connected to the blanking assembly (3).

5. The special-shaped rotary vane water meter cover forming equipment according to claim 4, characterized in that: The slide groove (129) comprises a left horizontal groove, a middle quarter arc groove and a right horizontal groove which are connected in sequence. The connection between the left horizontal groove and the right horizontal groove and the middle quarter arc groove is connected by an arc transition. The left horizontal groove is located outside the right horizontal groove.

6. The special-shaped rotary vane water meter cover forming equipment according to claim 5, characterized in that: The lower mold assembly (13) comprises a lower mold mounting plate (131), a shell molding groove (132), a support molding groove (133), a handle molding groove (134) and an exhaust hole (135); the right end of the guide rod (113) is fixedly connected to the lower mold mounting plate (131); the left end of the lower mold mounting plate (131) is provided with a shell molding groove (132) for matching with the shell mold core (122) to mold the water meter cover shell (41); the lower side of the left end of the lower mold mounting plate (131) is provided with a handle molding groove (134) for molding the handle (44); The handle molding groove (134) is connected to the shell molding groove (132); a support molding groove (133) for matching the support molding groove (123) to mold the support (42) is provided on the upper side of the left end of the lower mold mounting plate (131); the support molding groove (133) is connected to the shell molding groove (132); an exhaust hole (135) is provided on the upper end of the lower mold mounting plate (131); the exhaust hole (135) is connected to the support molding groove (133); the lower mold mounting plate (131) and the shell molding groove (132) are both connected to the injection molding component (2).

7. The special-shaped rotary vane water meter cover forming equipment according to claim 6, characterized in that: The right ends of the two connecting plates (128) are respectively fixedly connected to the front and rear sides of the upper end of the lower mold mounting plate (131).

8. The special-shaped rotary vane water meter cover forming equipment according to claim 7, characterized in that: The injection molding assembly (2) comprises a support seat (21), a second cylinder (22), a blocking block (23), a connecting hole (24) and an injection hole (25); the right end of the lower mold mounting plate (131) is fixedly connected to the support seat (21); the right end of the support seat (21) is fixedly connected to the second cylinder (22); the output end of the second cylinder (22) is fixedly connected to the blocking block (23); the right end of the lower mold mounting plate (131) is provided with a connecting hole (24) and an injection hole (25); the right end of the injection hole (25) is inclined upward; the left lower end of the injection hole (25) is connected to the left end of the connecting hole (24); the blocking block (23) is embedded in the connecting hole (24) and is slidably connected to the connecting hole (24); the connecting hole (24) is connected to the shell molding groove (132); the left end of the blocking block (23) is flush with the inner wall of the right end of the shell molding groove (132).

9. The special-shaped rotary vane water meter cover forming equipment according to claim 8, characterized in that: An injection hole (25) is formed at the upper end of the lower mold mounting plate (131), the lower end of the injection hole (25) is connected to the left end of the connecting hole (24), and the injection hole (25) is a vertical injection hole.

10. The special-shaped rotary vane water meter cover forming equipment according to claim 9, characterized in that: The blanking assembly (3) comprises a blanking rod (31) and a spring (32); the right ends of the two blanking rods (31) are respectively embedded in openings on the upper mold mounting plate (121) and the shell mold core (122) and are slidably connected to the upper mold mounting plate (121) and the shell mold core (122); the right end of the blanking rod (31) is flush with the right end of the shell mold core (122); a spring (32) is sleeved on the blanking rod (31); and the two ends of the spring (32) are respectively fixedly connected to the upper mold mounting plate (121) and the blanking rod (31).